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Thermo 48i, Instruction Manual

The Thermo Scientific 48i is a cutting-edge scientific instrument known for its accuracy in measuring trace levels of nitrogen dioxide (NO2) in ambient air. To fully utilize this device, make sure to acquire the comprehensive Instruction Manual for free download exclusively at manualshive.com, providing step-by-step guidance and maximizing your results.

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Thermo Electron Corporation

Model 48

i

 

Instruction Manual

5-1

Chapter 5

Preventive Maintenance

This chapter describes the periodic maintenance procedures that should be 
performed on the instrument to ensure proper operation.

Since usage and environmental conditions vary greatly, you should inspect 
the components frequently until an appropriate maintenance schedule is 
determined. This includes the sample pump, solenoid valves, and IR source 
which have a limited life.

Other operations such as cleaning the optics and checking the calibration of 
the pressure and temperature transducers should be performed on a regular 
basis.

This chapter includes the following maintenance information and 
replacement procedures:

•

“Replacement Parts” 

on 

page 5-1

•

“Cleaning the Outside Case” 

on 

page 5-2

•

“Cleaning the Optics” 

on 

page 5-2

•

“IR Source Replacement” 

on 

page 5-3

•

“Fan Filter Inspection and Cleaning” 

on 

page 5-3

•

“Leak Test and Pump Check Out” 

on 

page 5-4

•

“Pump Rebuilding” 

on 

page 5-5

Replacement Parts

See the “Servicing” chapter for a list of replacement parts and the associated 
replacement procedures.

WARNING 

If the equipment is operated in a manner not specified by the 

manufacturer, the protection provided by the equipment may be impaired. 

Summary of Contents for 48i

Page 1: ...Model 48i Instruction Manual Gas Filter Correlation CO Analyzer Part number 101891 00 8Apr2005 ...

Page 2: ... is a trademark of Thermo Electron Corporation All other product names and logos are the property of their respective owner Specifications terms and pricing are subject to change Not all products are available in all countries Please consult your local sales representative for details ...

Page 3: ...on 3 1 Display 3 2 Pushbuttons 3 3 Soft Keys 3 4 Software Overview 3 4 Power Up Screen 3 6 Run Screen 3 6 Main Menu 3 7 Range Menu 3 8 Single Range Mode 3 9 Dual Range Mode 3 10 Autorange Mode 3 11 Gas Units 3 14 CO Range 3 15 Set Custom Ranges 3 17 Averaging Time 3 18 Calibration Factors Menu 3 19 CO Background Correction 3 20 CO Span Coefficients 3 21 Calibration Menu 3 22 Calibrate CO Backgroun...

Page 4: ...Motor Speed 3 82 Analog Input Readings 3 82 Analog Input Voltages 3 83 Digital Inputs 3 84 Relay States 3 84 Test Analog Outputs 3 85 Instrument Configuration 3 86 Contact Information 3 87 Alarms Menu 3 87 Internal Temperature 3 88 Bench Temperature 3 90 Pressure 3 91 Sample Flow 3 93 Bias Voltage 3 94 AGC Instensity 3 95 Motor Speed 3 97 Zero and Span Check 3 97 Zero and Span Auto Calibration 3 9...

Page 5: ...ng Chamber 4 3 Output Manifold 4 3 Pre Calibration 4 3 Calibration 4 3 Connect the Instrument 4 3 Zero Adjust 4 4 Span Adjust 4 5 Additional Concentration Standards 4 6 Calibration Curve 4 6 Calibration Frequency 4 6 Periodic Zero and Span Checks 4 6 References 4 7 HI and LO Multi Point Calibration 4 7 Default Coefficients 4 8 Cal Point 1 2 and 3 Adjust 4 8 Chapter 5 Preventive Maintenance 5 1 Rep...

Page 6: ...cement 7 14 Optical Switch Replacement 7 15 Bench Heater Assembly Replacement 7 16 Detector Preamplifier Assembly Replacement 7 17 Pump Replacement 7 18 Pressure Transducer Replacement 7 20 Pressure Transducer Calibration 7 21 Flow Transducer Replacement 7 23 Flow Transducer Calibration 7 24 Capillary Cleaning or Replacement 7 25 Optional Zero Span and Sample Solenoid Valve Replacement 7 26 Analog...

Page 7: ...ut Communication 8 5 Electronics 8 7 Motherboard 8 7 Measurement Interface Board 8 8 Flow Sensor Assembly 8 8 Pressure Sensor Assembly 8 8 Bench Heater Board 8 9 Pre amp Board Assembly 8 9 Digital Output Board 8 9 I O Expansion Board Optional 8 9 Front Panel Connector Board 8 9 I O Components 8 10 Analog Voltage Outputs 8 10 Analog Current Outputs Optional 8 10 Analog Voltage Inputs Optional 8 11 ...

Page 8: ...rements B 8 Alarms B 11 Diagnostics B 15 Datalogging B 16 Calibration B 22 Keys Display B 25 Measurement Configuration B 27 Hardware Configuration B 30 Communications Configuration B 32 I O Configuration B 36 Record Layout Definition B 40 Format Specifier for ASCII Responses B 41 Format Specifier for Binary Responses B 41 Format Specifier for Front Panel Layout B 41 Appendix C MODBUS Protocol C 1 ...

Page 9: ...ing the analyzer and describes the required equipment Chapter 5 Preventive Maintenance provides maintenance procedures to ensure reliable and consistent instrument operation Chapter 6 Troubleshooting presents guidelines for diagnosing analyzer failures isolating faults and includes recommended actions for restoring proper operation Chapter 7 Servicing presents safety alerts for technicians working...

Page 10: ...ied by the manufacturer the protection provided by the equipment may be impaired Safety and Equipment Damage Alerts This manual contains important information to alert you to potential safety hazards and risks of equipment damage Refer to the following types of alerts you may see and the actual alerts that appear in this manual Safety and Equipment Damage Alert Descriptions Alert Description DANGE...

Page 11: ...o let the liquid crystal contact your skin or clothes If the liquid crystal contacts your skin or clothes wash it off immediately using soap and water Equipment Damage Do not attempt to lift the analyzer by the cover or other external fittings Some internal components can be damaged by small amounts of static electricity A properly grounded antistatic wrist strap must be worn while handling any in...

Page 12: ...Preface Thermo Electron Corporation Model 48i Instruction Manual xii ...

Page 13: ...ics display Menu driven software Field programmable ranges User selectable single dual auto range modes Multiple user defined analog outputs Analog input options High sensitivity Fast response time Linearity through all ranges Highly specific to CO Self aligning optics Automatic temperature and pressure compensation User selectable digital input output capabilities Standard communications features...

Page 14: ...n of 10 000 ppm The sample is drawn into the Model 48i through the sample bulkhead as shown in Figure 1 1 The sample flows through the optical bench Radiation from an infrared source is chopped and then passed through a gas filter alternating between CO and N2 The radiation then passes through a narrow bandpass interference filter and enters the optical bench where absorption by the sample gas occ...

Page 15: ...0 2000 5000 10000 ppm or mg m3 Custom ranges 0 1 to 10000 ppm or mg m3 Zero roise 0 02 ppm RMS 30 second averaging time Lower detectable limit 0 04 ppm Zero drift 24 hour 0 1 ppm Span drift 1 full scale Response time 60 seconds 30 second averaging time Linearity 1 of full scale 1000 ppm 2 5 of full scale 1000 ppm Sample flow rate 1 0 LPM Operating temperature 20 30 C may be safely operated over th...

Page 16: ...surement input Digital outputs 1 power fail relay Form C 10 digital relays Form A user selectable alarm output relay logic 100 mA 200 VDC Digital inputs 16 digital inputs user select programmable TTL level pulled high Serial Ports 1 RS 232 or RS 485 with two connectors baud rate 1200 115200 data bits parity and stop bits protocols C Link MODBUS and streaming data all user selectable Ethernet conne...

Page 17: ...sirable to have two persons lifting one by grasping the bottom in the front and the other by grasping the bottom in the rear Unpacking and Inspection The Model 48i is shipped complete in one container If there is obvious damage to the shipping container when you receive the instrument notify the carrier immediately and hold for inspection The carrier is responsible for any damage incurred during s...

Page 18: ...ng material Figure 2 1 Figure 2 1 Remove the Packing Material 4 Remove the three shipping screws Figure 2 2 Figure 2 2 Remove the Shipping Screws 5 Check for possible damage during shipment Units without Optional I O Board Units with Optional I O Board Remove Packing Remove Packing 2 pieces 2 pieces Shipping Screws 3 ...

Page 19: ...nt at atmospheric pressure It may be necessary to use an atmospheric bypass plumbing arrangement as shown in Figure 2 4 2 Connect the EXHAUST bulkhead to a suitable vent The exhaust line should be 1 4 inch OD with a minimum ID of 1 8 inch The length of the exhaust line should be less than 10 feet Verify that there is no restriction in this line 3 If the optional zero span solenoid valves are insta...

Page 20: ...cedure 2 4 Model 48i Instruction Manual Thermo Electron Corporation Figure 2 3 Model 48i Rear Panel Figure 2 4 Atmospheric Dump Bypass Plumbing Instrument Bulkhead Vent to Exhaust Line at Atmospheric Pressure Input Gas Line ...

Page 21: ...rn the power ON 2 Allow 90 minutes for the instrument to stabilize 3 Set instrument parameters such as operating ranges and averaging times to appropriate settings For more information about instrument parameters see the Operation chapter 4 Before beginning the actual monitoring perform a multipoint calibration as described in the Calibration chapter ...

Page 22: ...Installation Startup 2 6 Model 48i Instruction Manual Thermo Electron Corporation ...

Page 23: ...es Averaging Time on page 3 18 describes the averaging period applied to CO measurements Calibration Factors Menu on page 3 19 describes the calibration factors used to correct CO measurement readings Calibration Menu on page 3 22 describes calibration of zero and span Instrument Controls Menu on page 3 29 describes the instrument hardware control and configuration Diagnostics Menu on page 3 75 de...

Page 24: ... instrument controls help and error messages Some menus contain more items than can be displayed at one time For these menus use and to move the cursor up and down to each item Figure 3 1 48i Front Panel Display CAUTION If the LCD panel breaks do not let the liquid crystal contact your skin or clothes If the liquid crystal contacts your skin or clothes wash it off immediately using soap and water ...

Page 25: ...when in the Run screen or back up one level in the menu system For more information about the Main Menu see Main Menu later in this chapter Help The is context sensitive that is it provides additional information about the screen that is being displayed Press for a brief explanation about the current screen or menu Help messages are displayed using lower case letters to easily distinguish them fro...

Page 26: ...the key assignment screen will not come up upon entering right arrow soft key combinations All items under the Service menu including the menu itself cannot be assigned soft keys Software Overview The Model 48i is based on menu driven software as illustrated by the flowchart in Figure 3 3 The Power Up screen shown at the top of the flowchart is displayed each time the instrument is turned on This ...

Page 27: ...U 2TQITCO 8GTUKQP 8QNVCIGU 6GORU 2TGUUWTG NQY 5CORNG 4GH 4CVKQ PVGPUKV QVQT 5RGGF PCNQI PRWV 4GCFKPIU PCNQI PRWV 8QNVCIGU KIKVCN PRWVU 4GNC 5VCVGU 6GUV PCNQI 1WVRWVU PUVTWOGPV QPHKI QPVCEV PHQ NCTOU PVGTPCN 6GOR GPEJ 6GOR 2TGUUWTG 5CORNG NQY KCU 8QNVCIG PVGPUKV QVQT 5RGGF GTQ JGEM 5RCP JGEM GTQ WVQECN 5RCP WVQECN QPE 5VCVWU PV F 5VCVWU 1 F 5VCVWU 5GTXKEG 4CPIG QFG 5GNGEV 2TGUUWTG CN NQY CN PKVKCN ...

Page 28: ... the span zero valve option and is in SAMPLE mode Other modes appear in the same area of the display as ZERO or SPAN For more information about the optional solenoid valves see Chapter 9 Optional Equipment When operating in dual or autorange mode two sets of coefficients are used to calculate the CO LOW and HIGH concentrations Also two averaging times are used one for each range The title bar indi...

Page 29: ...submenus according to their function Use and to move the cursor to each submenu Use to select a submenu X CONCENTRATION W NO 28 7 PPB CO 15 80 PPM NOx 29 2 PPB SAMPLE 12 34 ALARMx RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx MAIN MENU RANGE AVERAGING TIME CALIBRATION FACTORS CALIBRATION INSTRUMENT CONTROLS DIAGNOSTICS ALARMS ª RANGE AVG DIAGS ALARM SERVICE PASSW...

Page 30: ... or autorange modes see Single Range Mode Dual Range Mode and Autorange Mode below In the Main Menu choose Range Use and to move the cursor up and down Press to select a choice Press to return to the Main Menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx RANGE GAS UNITS PPM RANGE 50 SET CUSTOM RANGES RANGE AVG DIAGS ALARM XLOW RANGE CONCENTRATION W CO 1...

Page 31: ...connections Single range mode may be selected from the Single Dual Auto Select in the Service Menu later in this chapter Figure 3 4 Pin Out of Rear Panel Connector in Single Range Mode Table 3 2 Default Analog Outputs in Single Range Mode Note All channels are user definable If any customization has been made to the analog output configuration the default selections may not apply Channel Pin Descr...

Page 32: ...d the high CO analog output set to output concentrations from 0 to 100 ppm In addition each CO analog output has a span coefficient There are two span coefficients so that each range can be calibrated separately This is necessary if the two ranges are not close to one another For example the low CO range is set to 0 50 ppm and the high CO range is set to 0 10 000 ppm By default in the dual range m...

Page 33: ...nted to the low ranges analog outputs and sample concentrations above 50 ppm are presented to the high ranges analog outputs When the low range is active the status output is at 0 volts When the high range is active the status output is at half of full scale When the high range is active the concentration must drop to 95 of the low CO range for the low range to become active In addition each CO an...

Page 34: ...g Output in Autorange Mode By default in the autorange mode the analog outputs are arranged on the rear panel connector as shown in Figure 3 7 Refer to Table 3 4 for channels and pin connections Autorange mode may be selected from the Single Dual Auto Select in the Service Menu later in this chapter ...

Page 35: ...Analog Outputs in Autorange Mode Note All channels are user definable If any customization has been made to the analog output configuration the default selections may not apply Channel Pin Description 1 14 CO Analog Output 2 33 CO Status Output half scale high range zero scale low range 3 15 None 4 34 None 5 17 None 6 26 None Ground 16 18 19 35 37 Signal Ground ...

Page 36: ...mode For example when switching from mg m3 to ppm all the ranges default to 10 000 ppm Therefore whenever you change units you should also check the range settings In the Main Menu choose Range Gas Units Use and for a list of choices Press to save the new units Press to return to the Range menu or to return to the Run screen Note If the units change from ppm to mg m3 or vice versa a display warnin...

Page 37: ...nly difference between the screens are the words High or Low displayed to indicate which range is displayed The example below shows the CO range screen in single mode For more information about the dual and autorange modes see Single Range Mode Dual Range Mode and Autorange Mode earlier in this chapter Table 3 5 lists the standard ranges In the Main Menu choose Range Range Use and for a list of ch...

Page 38: ... Thermo Electron Corporation Table 3 5 Standard Ranges For more information about custom ranges see Set Custom Ranges below ppm mg m3 1 1 2 2 5 5 10 10 20 20 50 50 100 100 200 200 500 500 1 000 1 000 2 000 2 000 5 000 5 000 10 000 10 000 C1 C1 C2 C2 C3 C3 ...

Page 39: ...e Run screen Custom Ranges The Custom Ranges screen is used to define the custom ranges The display shows the current custom range The next line of the display is used to set the range To use the custom full scale range be sure to select it Custom range 1 2 or 3 in the CO Ranges screen For more information about selecting ranges see CO Range above In the Main Menu choose Range Custom Ranges Custom...

Page 40: ...efore the lower the averaging time the faster the front panel display and analog outputs respond to concentration changes Longer averaging times are typically used to smooth output data The Averaging Time screens for the single and dual or auto range modes are shown below In the dual and auto range modes an Averaging Time Menu is displayed before the averaging time screens This menu is needed beca...

Page 41: ...ment is calibrated automatically using the Calibration menu described in Calibration Menu later in this chapter However the instrument can also be calibrated manually using the Calibration Factors menu To manually calibrate the instrument see CO Backgrounds and CO Span Coefficients below for more information In the Main Menu choose Calibration Factors Use and to move the cursor up and down Press t...

Page 42: ...rform a manual zero calibration of the instrument As such the instrument should sample zero air until stable readings are obtained The first line of the display shows the current CO reading This reading is the CO background signal The second line of the display shows the CO background correction that is stored in memory and is being used to correct the CO reading That is the CO background correcti...

Page 43: ...ecreased At this point however no real changes have been made To escape this screen without making any changes press to return to the Calibration Factors menu or to return to the Run screen Press to actually set the CO reading to 0 ppm and store the background correction of 15 80 ppm In the Main Menu choose Calibration Factors CO Bkg Use and to increment or decrement the proposed background value ...

Page 44: ...hanges are made until is pressed In dual or autorange modes High or Low is displayed to indicate the calibration of the high or low coefficient The example below shows the coefficient screen in dual autorange mode In the Main Menu choose Calibration Factors Hi Coef Use and to increment or decrement the coefficient value Press to save the new coefficient Press to return to the Calibration Factors m...

Page 45: ...he choice Press to return to the Main Menu or to return to the Run screen Calibrate CO Background The Calibrate CO Background screen is used to adjust the CO background or perform a zero calibration Before performing a zero calibration ensure the analyzer samples zero air for at least 5 minutes XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx CALIBRATION CAL BACKGROUND CAL COEF ZERO SPAN...

Page 46: ...ncentration The display shows the current CO concentration reading and the current CO range The next line of the display is where the CO calibration gas concentration is entered The CO span coefficient is calculated stored and used to correct the current CO reading For more information about calibration see Chapter 4 Calibration In dual or auto range modes High or Low is displayed to indicate the ...

Page 47: ... and span check or adjustments Note Zero and Span Calibration Reset are toggle items that change between yes or no when selected and present only if auto calibration is installed In the Main Menu choose Calibration Zero Span Check Use and to move the cursor up and down Press to accept the choice Press to return to the Calibration menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 ...

Page 48: ... and change the value of the date and time Press to accept a change Press to return to the Zero Span Check menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ZERO SPAN CHECK NEXT DATE TIME PERIOD HOURS 6 ZERO DURATION MIN 30 SPAN DURATION MIN 30 PURGE DURATION MIN 5 ZERO SPAN AVG SEC 60 ZERO CAL RESET OFFª RANGE AVG DIAGS ALARM SPAN CAL RESET OFF ZERO SP...

Page 49: ...mpled by the instrument The span and purge duration screens look and function the same way as the zero duration screen and are used to set how long the span gas and sample gas are sampled by the instrument Durations between 0 and 30 minutes are acceptable Each time a zero span check occurs the zero check is done first followed by the span check To perform just a zero check set the span duration sc...

Page 50: ...20 180 240 and 300 seconds In the Main Menu choose Calibration Zero Span Check Zero Span Avg Sec Use and for a list of choices Press to save the averaging time Press to return to the Zero Span Check menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ZERO DURATION CURRENTLY 5 MIN SET TO 20 MIN ª CHANGE VALUE SAVE VALUE RANGE AVG DIAGS ALARM XXLO WCONCENTR...

Page 51: ...Span Ratio Use and to increment and decrement the numeric value Press to save the ratio value Press to return to the Zero Span Check menu or to return to the Run screen Instrument Controls Menu The Instrument Controls menu contains a number of items The software controls listed in this menu enable control of the listed instrument functions In the Main Menu choose Instrument Controls Use and to mov...

Page 52: ...ument Controls menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx INSTRUMENT CONTROLS DATALOGGING SETTINGS COMMUNICATION SETTINGS I O CONFIGURATION TEMPERATURE COMPENSATION PRESSURE COMPENSATION SCREEN CONTRAST SERVICE MODE ª RANGE AVG DIAGS ALARM DATE TIME XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx DATALOGGING SETTINGS SELECT SREC LREC S...

Page 53: ...t Press to return to the Datalogging Settings menu or to return to the Run screen View Logged Data The View Logged Data screen is used to select records relative to current or date time filter type In the Main Menu choose Instrument Controls Datalogging Settings Select SREC or LREC View Logged Data Use and for a list of choices Press to set the filter type and continue to record selection menu XXL...

Page 54: ...g record and continue to record display menu Date Time Filter The Date Time Filter screen is used to view and change the system date and time Use and to increment or decrement the selected date field Use to advance to next date field XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx SELECT FILTER TYPE CURRENTLY NRECS SET TO DT TM ª CHANGE VAL ACCEPT RANGE AVG DIAGS ALARM XXLO WCONCENTRATI...

Page 55: ...ings menu Erase Log The Erase Log is used to enter the Erasure Warning screen read only In the Main Menu choose Instrument Controls Datalogging Settings Erase Log XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx NEXT DATE AND TIME 19 MAR 2005 12 34 ª CHG DAYS SET CURSOR TO MONTHS ACCEPT AS SHOWN RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx RECORDS BACK...

Page 56: ...st of record fields to use and a submenu list of the analog output signal group choices to choose from In the Main Menu choose Instrument Controls Datalogging Settings Select Content Use and to move the cursor up and down Press to select a choice Press to return to the Datalogging Settings menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx SREC CHANGE WA...

Page 57: ... 32 Use and to move the cursor up and down Press to select a choice XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx RECORD FIELDS TO USE FIELD 1 NO FIELD 2 CO FIELD 3 PRES FIELD 4 PMTT FIELD 5 INTT FIELD 6 RCTT FIELD 7 NONE ª RANGE AVG DIAGS ALARM FIELD 8 NONE FIELD 9 NONE FIELD 10 NONE FIELD 11 NONE FIELD 12 NONE FIELD 13 NONE FIELD 14 NONE FIELD 15 NONE FIELD 16 NONE FIELD 17 NONE FIE...

Page 58: ...y after it In the Main Menu choose Instrument Controls Datalogging Settings Select Content Select Field Concentrations Use and to move the cursor up and down Press to select a new choice Press to return to the Choose Item Type submenu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx DATA IN SREC FIELD 1 CONCENTRATIONS OTHER MEASUREMENTS ANALOG INPUTS RANGE ...

Page 59: ...the Choose Item Type submenu or to return to the Run screen Analog Inputs The Analog Inputs screen allows the user to select the output signal that is tied to the selected streaming data item The selected item is shown by after it In the Main Menu choose Instrument Controls Datalogging Settings Select Content Select Field Analog Inputs Use and to move the cursor up and down Press to select a new c...

Page 60: ...ging Use and for a list of choices Press to select a choice Press to return to the Datalogging Settings menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG INPUTS NONE INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 ª RANGE AVG DIAGS ALARM INPUT 7 INPUT 8 XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx DATALOGGING SETTINGS LOGGING PERIOD...

Page 61: ... screen Memory Allocation Percent The Memory Allocation Percent screen is used to select the percentage of each record type for both srecs and lrecs Percentages between 0 and 100 are available in increments of 10 This screen results in log erasure for both srecs and lrecs In the Main Menu choose Instrument Controls Datalogging Settings Configure Datalogging Memory Allocation Use and for a list of ...

Page 62: ...ain Menu choose Instrument Controls Datalogging Settings Configure Datalogging Data Treatment Use and for a list of choices Press to set the data treatment Press to return to the Configure Datalogging menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx SET PERCENT SRECS CURRENTLY 50 SET TO 100 ª CHANGE VALUE SAVE RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONX...

Page 63: ...un screen Baud Rate The Baud Rate screen is used to set the RS 232 RS 485 interface baud rate Baud rates of 1200 2400 4800 and 9600 19200 38400 57600 and 115200 are available In the Main Menu choose Instrument Controls Communication Settings Baud Rate Use and for a list of choices Press to save the new baud rate Press to return to the Communication Settings menu or to return to the Run screen XXLO...

Page 64: ... computer Valid Instrument ID numbers are from 0 to 127 The Model 48i has a default Instrument ID of 48 For more information about the Instrument ID see Appendix B C Link Protocol Commands or Appendix C MODBUS Protocol In the Main Menu choose Instrument Controls Communication Settings Instrument ID Use and to increment or decrement the ID value Press to save the new instrument ID Press to return t...

Page 65: ...oices Press to save the new protocol Press to return to the Communication Settings menu or to return to the Run screen Streaming Data Configuration The Streaming Data Configuration is used to allow for configuration of the streaming data output XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx INSTRUMENT ID CURRENTLY 48 SET TO 50 ª CHANGE VALUE SAVE VALUE RANGE AVG DIAGS ALARM XXLO WCONCE...

Page 66: ...treaming Data Interval screen is used to adjust the streaming data interval The following interval times are available 1 2 5 10 20 30 60 90 120 180 240 and 300 seconds In the Main Menu choose Instrument Controls Communication Settings Streaming Data Config Streaming Data Interval XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx STREAMING DATA CONFIG INTERVAL 10 SEC ADD LABELS NO PREPEND ...

Page 67: ...t signal group choices Group choices are Concentrations Other Measurements and Analog Inputs if the I O expansion board is installed In the Main Menu choose Instrument Controls Communication Settings Streaming Data Config Item 1 18 Use and to move the cursor up and down Press to select a choice Press to return to the Streaming Data Config submenu or to return to the Run screen XXLO WCONCENTRATIONX...

Page 68: ...ument Controls Communication Settings Streaming Data Config Select Item Concentrations Use and to move the cursor up and down Press to select a new choice Press to return to the Choose Item Signal submenu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx CHOOSE ITEM SIGNAL CONCENTRATIONS OTHER MEASUREMENTS ANALOG INPUTS RANGE AVG DIAGS ALARM XXLO WCONCENTRAT...

Page 69: ...to the Choose Item Signal submenu or to return to the Run screen Analog Inputs The Analog Inputs screen allows the user to select the output signal that is tied to the selected streaming data item The selected item is shown by after it In the Main Menu choose Instrument Controls Communication Settings Streaming Data Config Select Item Analog Inputs Use and to move the cursor up and down Press to s...

Page 70: ...ngs RS 232 RS 485 Selection Press to leave the warning screen and toggle RS 232 or RS 485 Use to confirm and save the new selection change Press to return to the Communication Settings menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG INPUTS NONE INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 ª RANGE AVG DIAGS ALARM INPUT 7 INPUT 8 WARNING Disco...

Page 71: ...tings menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx RS 232 RS 485 SELECTION XXXXXX WARNING XXXXXXX DISCONNECT THE SERIALX X CABLES BEFORE CHANGING X THE SELECTION XXXXXX TO CONTINUE RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx RS 232 RS 485 SELECTION CURRENTLY RS 232 SET TO RS 485 MAKE SURE THAT THE CABLEXX IS OFF...

Page 72: ...P Settings menu or to return to the Run screen IP Address The IP Address is used to edit the IP address In the Main Menu choose Instrument Controls Communication Settings TCP IP Settings IP Address XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx TCP IP SETTINGS USE DHCP OFF IP ADDRESS 192 168 1 15 NETMASK 255 255 255 0 GATEWAY 192 168 1 1 HOST NAME RANGE AVG DIAGS ALARM XXLO WCONCENTRAT...

Page 73: ...mask The Netmask screen is used to edit the netmask In the Main Menu choose Instrument Controls Communication Settings TCP IP Settings Netmask Use and to move and change the value of the netmask Press to save the new netmask Press to return to the TCP IP Settings menu or to return to the Run screen X CONCENTRATION W CO 15 80 PPM SAMPLE 12 34 ALARMx IP ADDRESS CURRENT 192 168 001 015 SET TO 192 168...

Page 74: ...new address Press to return to the TCP IP Settings menu or to return to the Run screen Host Name The host name screen is used to edit the host name When DHCP is enabled this name is reported to the DHCP server X WCONCENTRATION W CO 15 80 PPM SAMPLE 12 34 ALARMx NETMASK CURRENT 255 255 255 000 SET TO 255 255 255 000 MOVE CURSOR ª CHANGE VALUE SAVE RANGE AVG DIAGS ALARM X WCONCENTRATION W CO 15 80 P...

Page 75: ...ge Press to return to the TCP IP Settings menu or to return to the Run screen I O Configuration The I O Configuration menu deals with configuration of the analyzer s I O system In the Main Menu choose Instrument Controls I O Configuration Use and to move the cursor up and down Press to select a choice Press to return to the Instrument Controls menu or to return to the Run screen X WCONCENTRATION W...

Page 76: ...e digital outputs may take up to one second after the assigned state occurs to show up on the outputs In the Main Menu choose Instrument Controls I O Configuration Output Relay Settings 1 10 Use and to move the cursor up and down Press to select a choice Press to return to the I O Configuration menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx I O CONFI...

Page 77: ...The Instrument State submenu allows the user to select the instrument state that is tied to the selected relay output A submenu lists signal types of either alarm and non alarm to choose from XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx OUTPUT RELAY SETTINGS 1 NOP CONC ALARM 2 NOP LOCAL REMOTE 3 NOP UNITS 4 NOP GEN ALARM 5 NOP NONE 6 NOP NONE 7 NOP CO MODE ª RANGE AVG DIAGS ALARM 8 N...

Page 78: ...n screen Alarms The Alarms status screen allows the user to select the alarm status for the selected relay output The selected item is shown by after it In the Main Menu choose Instrument Controls I O Configuration Output Relay Settings Select Relay Instrument State Alarms Use and for a list of choices Press to save the new selection for the relay Press to return to the Instrument State submenu or...

Page 79: ...rols I O Configuration Output Relay Settings Relay 1 10 Instrument State Non Alarm Use and for a list of choices Press to save the new selection for the relay Press to return to the Instrument State submenu or to return to the Run screen XHIGH RANGE CONCENTRATIONW CO 15 80 PPM SAMPLE 12 34 ALARMx ALARM STATUS ITEMS NONE GEN ALARM HI CO CONC LO CO CONC INT TEMP BENCH TEMP PRESSURE ª RANGE AVG DIAGS...

Page 80: ...The digital inputs must be asserted for at least one second for the action to be activated In the Main Menu choose Instrument Controls I O Configuration Digital Input Settings 1 16 Use and to move the cursor up and down Press to select a choice Press to return to the I O Configuration menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx NON ALARM STATUS IT...

Page 81: ...othing is connected to the digital input pin the state should be left at open to prevent the action from being triggered Press to toggle and set the logic state open or closed Press to return to the Digital Input Settings menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx DIGITAL INPUT SETTINGS 1 NOP CO MODE 2 NOP SET BACKGROUND 3 NOP CAL TO SPAN 4 NOP A...

Page 82: ...e Use and for a list of choices Press to save the new selection for the relay Press to return to the Digital Intput Settings menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx DIGITAL INPUT SETUP LOGIC STATE OPEN INSTRUMENT STATE NOALM RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx CHOOSE ACTION NONE CO MEASURE MODE ZERO...

Page 83: ...oard option is installed In the Main Menu choose Instrument Controls I O Configuration Analog Output Config Use and to move the cursor up and down Press to select a choice Press to return to the I O Configuration menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx SELECT OUTPUT CHANNEL ALL VOLTAGE CHANNELS ALL CURRENT CHANNELS VOLTAGE CHANNEL 1 VOLTAGE CH...

Page 84: ...ion Analog Output Config Select Channel Select Range Use and to move the cursor up and down Press to save the new range Press to return to the Analog Output Configuration menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG OUTPUT CONFIG SELECT RANGE SET MINIMUM VALUE SET MAXIMUM VALUE CHOOSE SIGNAL TO OUTPUT RANGE AVG DIAGS ALARM XXLO WCONCENTRATIO...

Page 85: ...m Value Use and to increment or decrement the numeric value Press to validate and save the new minimum value Press to return to the Analog Output Configuration menu or to return to the Run screen Table 3 6 Analog Output Zero to Full Scale Table Output Zero Value Full Scale 100 Value CO Zero 0 Range Setting LO CO Zero 0 Range Setting HI CO Zero 0 Range Setting Range Status NOx Recommend not to chan...

Page 86: ...iguration Analog Output Config Select Channel Choose Signal To Output Use and to move the cursor up and down Press to select a choice Press to return to the Analog Output Config menu or to return to the Run screen Bench Temp User set alarm min value User set alarm max value Pressure User set alarm min value User set alarm max value Sample Flow User set alarm min value User set alarm max value Inte...

Page 87: ...ss to select a choice Press to return to the I O Configuration menu or to return to the Run screen Note The current outputs are only displayed if the I O expansion board option is installed Table 3 7 Signal Types Concentrations Other Measurements Analog Inputs None None None CO single range mode only Sample Reference Analog Input 1 LO CO dual auto range only LO Sample Reference Analog Input 2 HI C...

Page 88: ...to IN1to IN8 user input channel number In the Main Menu choose Instrument Controls I O Configuration Analog Input Config Select Channel Descriptor XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG INPUT CHANNELS CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 CHANNEL 5 CHANNEL 6 CHANNEL 7 ª RANGE AVG DIAGS ALARM CHANNEL 8 XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG IN...

Page 89: ...layed on the diagnostic screen and in datalogging and streaming data The units may be from 1 to 3 characters in length and defaults to V volts In the Main Menu choose Instrument Controls I O Configuration Analog Input Config Select Channel Units Press to save the new value Press to return to the Analog Input Config menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 1...

Page 90: ...he value Press to save the new value Press to return to the Analog Input Config menu or to return to the Run screen Number of Table Points The Number of Table Points screen allows the user to select how many points are used in the conversion table The points range from 2 to 10 with a default of 2 XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG INPUT UNITS ASSSSSSSSSSSS ABCDEFGHIJ...

Page 91: ...ig menu or to return to the Run screen Table Point The Table Point submenu allows the user to set up an individual table point In the Main Menu choose Instrument Controls I O Configuration Analog Input Config Table Point 1 10 Use and to move the cursor up and down Press to select a choice Press to return to the Analog Input Config menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15...

Page 92: ...In the Main Menu choose Instrument Controls I O Configuration Analog Input Config Select Table Point Volts Use and to move the cursor up and down Press to save the new value Press to return to the Table Point submenu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx TABLE POINT 01 CONFIG VOLTS 5 00 USER VALUE 10 800 RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONX...

Page 93: ...changes to the instrument s output signal due to internal instrument temperature variations The effects of internal instrument temperature changes on the analyzer s subsystems and output have been empirically determined This empirical data is used to compensate for any changes in temperature This compensation can be used for special applications or when operating the instrument outside the recomme...

Page 94: ...determined This empirical data is used to compensate for any change in reaction chamber pressure This compensation can be used even though the Model 48i does not require pressure compensation for EPA equivalency When pressure compensation is on the display represents the current pressure in the fluorescence chamber When pressure compensation is off the display shows the factory standard pressure o...

Page 95: ... temperatures In the Main Menu choose Instrument Controls Screen Contrast Use and to increment or decrement the screen contrast Press to accept a change Press to return to the Instrument Controls menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx PRESSURE COMPENSATION COMP PRES 750 0 mmHg CURRENTLY OFF SET TO ON TOGGLE VALUE RANGE AVG DIAGS ALARM XXLO WC...

Page 96: ...u choose Instrument Controls Service Mode Press to toggle and set the service mode on or off Press to return to the Instrument Controls menu or to return to the Run screen Date Time The Date Time screen and allows the user to view and change the system date and time 24 hour format The internal clock is powered by its own battery when instrument power is off In the Main Menu choose Instrument Contr...

Page 97: ...l when troubleshooting the instrument In the Main Menu choose Instrument Controls Diagnostics Use and to move the cursor up and down Press to select a choice Press to return to the Instrument Controls menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx NEXT DATE AND TIME 19 MAR 2005 12 34 ª CHG DAYS SET CURSOR TO MONTHS ACCEPT AS SHOWN RANGE AVG DIAGS ALA...

Page 98: ...Program Version Press to return to the Diagnostics menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx DIAGNOSTICS PROGRAM VERSION VOLTAGES TEMPERATURES PRESSURE FLOW SAMPLE REF RATIO AGC INTENSITY ª RANGE AVG DIAGS ALARM MOTOR SPEED ANALOG INPUT READINGS ANALOG INPUT VOLTAGES DIGITAL INPUTS RELAY STATES TEST ANALOG OUTPUTS INSTRUMENT CONFIGURATION CONTAC...

Page 99: ...led In the Main Menu choose Diagnostics Voltages Use and to move the cursor up and down Press to select a choice Press to return to the Diagnostics menu or to return to the Run screen Motherboard Voltages The Motherboard screen read only is used to display the current voltage readings on the motherboard In the Main Menu choose Diagnostics Voltages Motherboard Voltages Press to return to the Voltag...

Page 100: ...ad only is used to display the current voltage readings on the I O expansion board This menu is only accessible if the I O expansion board is installed XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx MOTHERBOARD VOLTAGES 3 3 SUPPLY 3 3 V 5 0 SUPPLY 5 0 V 15 0 SUPPLY 15 3 V 24 0 SUPPLY 24 1 V 3 3 SUPPLY 3 3 V RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARM...

Page 101: ...h temperature The internal temperature is the air temperature measured by a sensor located on the interface board In the Main Menu choose Diagnostics Temperatures Press to return to the Diagnostics menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx I O BOARD VOLTAGES 3 3 SUPPLY 3 3 V 5 0 SUPPLY 5 0 V 24 0 SUPPLY 24 0 V 3 0 SUPPLY 3 0 V RANGE AVG DIAGS AL...

Page 102: ...ostics menu or to return to the Run screen Flow The Flow screen read only displays the flow rate The flow is measured by internal flow sensors For more information see Chapter 1 Operations In the Main Menu choose Diagnostics Flow Press to return to the Diagnostics menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx PRESSURE 753 0 mmHg RANGE AVG DIAGS ALAR...

Page 103: ...or leaking gas In the Main Menu choose Diagnostics Sample Ref Ratio Press to return to the Diagnostics menu or to return to the Run screen AGC Intensity The AGC Intensity screen read only displays the intensity in Hertz of the reference channel Automatic Gain Control AGC circuit The AGC circuit optimizes the noise and resolution levels of the Model 48i The AGC intensity reading should be about 250...

Page 104: ...ower supply In the Main Menu choose Diagnostics Motor Speed Press to return to the Diagnostics menu or to return to the Run screen Analog Input Readings The Analog Input Readings screen read only displays the current user scaled analog readings In the Main Menu choose Diagnostics Analog Input Readings XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx AGC INTENSITY INTENSITY 250000 HZ RANG...

Page 105: ...Press to return to the Diagnostics menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG INPUT READINGS NO 10 2 PPB NO2 18 2 PPB CO2 250 PPM FL1 20 42 LPM WND 9 86 V FL2 1 865 LPM IO7 0 0 Vª RANGE AVG DIAGS ALARM IO8 0 0 V XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG INPUT VOLTAGES ANALOG IN 1 6 24 V ANALOG IN 2 4 28 V ANALOG IN ...

Page 106: ...s the state of the digital outputs and allows toggling of the state to either on 1 or off 0 The relays are restored to their original states upon exiting this screen In the Main Menu choose Diagnostics Relay States Press to return to the Diagnostics menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx DIGITAL INPUTS INPUT 1 1 INPUT 2 1 INPUT 3 1 INPUT 4 1 ...

Page 107: ... Use and to move the cursor up and down Press to select output Press to return to the Diagnostics menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx RELAY STATE OUTPUT 1 1 OUTPUT 2 0 OUTPUT 3 0 OUTPUT 4 1 OUTPUT 5 0 OUTPUT 6 0 OUTPUT 7 0ª RANGE AVG DIAGS ALARM OUTPUT 8 0 OUTPUT 9 0 OUTPUT 10 0 XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx TE...

Page 108: ...select a choice Press to return to the Diagnostics menu or to return to the Run screen Instrument Configuration The Instrument Configuration screen displays information on the hardware configuration of the instrument Note If the analyzer is in service mode pressing on the item will toggle it yes or no with the exception of purchased options such as dilution and auto calibration In the Main Menu ch...

Page 109: ...t the status of that item will go from OK to either LOW or HIGH respectively If the alarm is not a level alarm the status will go from OK to FAIL The number of alarms detected is displayed to indicate how many alarms have occurred If no alarms are detected the number zero is displayed XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx INSTRUMENT CONFIGURATION I O EXPANSION BOARD YES ZERO S...

Page 110: ...own Press to select a choice Press to return to the Main Menu or to return to the Run screen Internal Temperature The Internal Temperature screen displays the current internal temperature and sets the minimum and maximum alarm limits Acceptable alarm limits range from 8 to 47 C If the internal temperature reading goes beyond either the minimum or maximum alarm limit an alarm is activated The word ...

Page 111: ... alarm limit screen is used to change the minimum internal temperature alarm limit The minimum and maximum internal temperature screens function the same way In the Main Menu choose Alarms Internal Temp Min or Max Use and to increment or decrement the numeric value Press to save set to value as actual value Press to return to the Internal Temperatures menu or to return to the Run screen XXLO WCONC...

Page 112: ...m is activated The word ALARM appears in the Run screen and in the Main Menu In the Main Menu choose Alarms Bench Temp Use and to move the cursor up and down Press to select a choice Press to return to the Alarms menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx INTERNAL TEMPERATURE ACTUAL MIN 30 1 o C SET MIN TO 10 0 o C ª INC DEC SAVE VALUE RANGE AVG ...

Page 113: ...to return to the Run screen Pressure The Pressure screen displays the current reaction chamber pressure reading and set the minimum and maximum alarm limits Acceptable alarm limits range from 250 to 1000 mmHg If the pressure reading goes beyond either the minimum or maximum limit an alarm is activated The word ALARM appears in the Run screen and in the Main Menu In the Main Menu choose Alarms Pres...

Page 114: ...choose Alarms Pressure Min or Max Use and to increment or decrement the numeric value Press to save set value as actual vlaue Press to return to the Pressure menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx PRESSURE ACTUAL 746 9 mmHg MIN 250 0 mmHg MAX 1000 0 mmHg RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx PRESSURE...

Page 115: ...to move the cursor up and down Press to select a choice Press to return to the Alarms menu or to return to the Run screen Min and Max Sample Flow Limits The Minimum Sample Flow alarm limit screen is used to change the minimum sample flow alarm limit The minimum and maximum sample flow screens function the same way In the Main Menu choose Alarms Sample Flow Min or Max Use and to increment or decrem...

Page 116: ...n alarm is activated The word ALARM appears in the Run screen and in the Main Menu In the Main Menu choose Alarms Bias Voltage Use and to move the cursor up and down Press to select a choice Press to return to the Alarms menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx SAMPLE FLOW ACTUAL MIN 0 350 LPM SET MIN TO 0 500 LPM ª INC DEC SAVE VALUE RANGE AVG...

Page 117: ...o the Run screen AGC Instensity The AGC Intensity screen displays the current AGC Intensity reading and set the minimum and maximum alarm limits Acceptable alarm limits range from 150 000 to 300 000 Hz If the AGC intensity reading goes beyond either the minimum or maximum limit an alarm is activated The word ALARM appears in the Run screen and in the Main Menu In the Main Menu choose Alarms AGC In...

Page 118: ... choose Alarms AGC Intensity Min or Max Use and to increment or decrement the numeric value Press to save set value as actual vlaue Press to return to the AGC Intensity menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx AGC INTENSITY ACTUAL 200000 Hz MIN 150000 Hz MAX 300000 Hz RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALA...

Page 119: ... and Span Check The Zero Span Check screen allows the user to view the status of the most recent zero check and set the maximum zero check offset The zero and span check screens are visible only if the zero span check option is enabled and function the same way In the Main Menu choose Diagnostics Voltages Zero or Span Check Use the and to move the cursor up and down Press to select a choice Press ...

Page 120: ...r Span Check Max Offset Use and to increment or decrement the numeric value Press to save set to value as actual value Press to return to the Zero or Span Check screen or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ZERO CHECK ALARM OK RESPONSE 0 108 MAX OFFSET 0 200 RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx MAX ZERO ...

Page 121: ...ets the minimum and maximum alarm limits Acceptable alarm limits range from 0 to 10 000 ppm The minimum alarm may be programmed as a floor trigger alarm is triggered when the concentration falls below the minimum value or a ceiling trigger alarm is triggered when the concentration goes above the minimum value If the CO concentration goes beyond either the minimum or maximum limit an alarm is activ...

Page 122: ...choose Alarms Concentration Min or Max Use and to increment or decrement the numeric value Press to save set to value as actual vlaue Press to return to the Concentration menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx CONCENTRATION ACTUAL 0 000 MIN 10000 MAX 10000 MIN TRIGGER CEILING RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE...

Page 123: ...or or ceiling Press to return to the Concentration menu or to return to the Run screen Service Menu The Service menu appears only when the instrument is in the service mode To put the instrument into the service mode In the Main Menu choose Instrument Controls Service Mode Advanced diagnostic functions are included in the service mode Meaningful data should not be collected when the instrument is ...

Page 124: ...a list of choices Press to save the new range mode Press to return to the Service menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx SERVICE RANGE MODE SELECT PRESSURE CALIBRATION FLOW CALIBRATION INTENSITY CHECK INITIAL S R RATIO LO MULTIPOINT CAL HI MULTIPOINT CAL ª RANGE AVG DIAGS ALARM PREAMP BOARD CAL TEMPERATURE CALIBRATION ANALOG OUT CALIBRATION A...

Page 125: ...see Service Mode earlier in this chapter The pressure sensor s zero counts and span slope are displayed on the menu In the Main Menu choose Service Pressure Calibration Use the and to move the cursor up and down Press to select a choice Press to return to the Service menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx SINGLE DUAL AUTO RANGE CURRENTLY SING...

Page 126: ...rent pressure reading as the zero reading Press to return to the Pressure Calibration menu or to return to the Run screen Calibrate Pressure Span The Calibrate Pressure Span screen allows the user to view and set the pressure sensor calibration span point XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMX PRESSURE SENSOR CAL ZERO 200 SPAN 1 2200 SET DEFAULTS RANGE AVG DIAGS ALARM XXLO WCON...

Page 127: ...to return to the Pressure Calibration menu or to return to the Run screen Restore Default Pressure Calibration The Restore Default Pressure Calibration screen allows the user to reset the pressure calibration configuration values to factory defaults In the Main Menu choose Service Pressure Calibration Set Defaults Press to warn user and enable restore with Use to overwrite pressure sensor calibrat...

Page 128: ...nformation on the service mode see Service Mode earlier in the chapter In the Main Menu choose Service Flow Calibration Use the and to move the cursor up and down Press to select a choice Press to return to the Service menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMX RESTORE DEFAULT CAL RESTORE ARE YOU SURE YOU WANT TO x PRESS TO CONFIRM RESTORE RANGE ...

Page 129: ...ow reading as the zero reading Press to return to the Flow Calibration menu or to return to the Run screen Calibrate Flow Span The Calibrate Flow Span screen allows the user to view and set the flow sensor calibrate span point XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMX FLOW SENSOR CAL ZERO 200 SPAN 1 0000 SET DEFAULTS RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAM...

Page 130: ... Run screen Restore Default Flow Calibration The Restore Default Flow Calibration screen allows the user to reset the flow calibration configuration values to factory defaults In the Main Menu choose Service Flow Calibration Set Defaults Press to warn user and enable restore with Use to overwrite pressure sensor calibration parameters with factory default values when pressed after Press to return ...

Page 131: ...al S R ratio should be changed is when the correlation wheel is replaced or sample reference is between 1 14 and 1 18 In the Main Menu choose Service Initial S R Ratio Use the and to move and change the value Press to save set to value as actual value Press to return to the Service menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMX RESTORE DEFAULT CAL RE...

Page 132: ... range mode The Lo and Hi Multi Point Calibration screens when in dual and auto range mode function the same way For more information on Lo and Hi Multi Point Calibration see Chapter 4 Calibration In the Main Menu choose Service Multipoint Calibration Use the and to move the cursor up and down Press to select a choice Press to return to the Service menu or to return to the Run screen XXLO WCONCENT...

Page 133: ...e set to value as actual value Press to return to the Multipoint menu or to return to the Run screen Coefficients The Coefficients screen allows the user to view and recalculate the calibration coefficients XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx MULTI POINT CAL CALIBRATE POINT 1 CALIBRATE POINT 2 CALIBRATE POINT 3 COEFFICIENT DEFAULT COEFFICIENTS RANGE AVE DIAGS ALARM XXLO WCON...

Page 134: ... screen Default Coefficients The Default Coefficients screen allows the user to view and reset the calibration coefficients to default values In the Main Menu choose Service Multipoint Cal Choose Cal Point Coefficients Press to recalculate the coefficients Press to return to the Multipoint menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMX COEFFICIENTS 1...

Page 135: ... value Press to save the new counts to hardware Press to return to the Service menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMX COEFFICIENTS 1 1 000000 2 1 000000 3 1 000000 RECALCULATE RANGE AVG DIAGS ALARM WARNING This adjustment should only be performed by an instrument service technician XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx PR...

Page 136: ...e set to value as actual value Press to return to the Service menu or to return to the Run screen Analog Output Calibration The Analog Output Calibation menu is a selection of analog output to calibrate and allows the user to select the calibration action zero or span The analog output calibration is visible only when the instrument is in service mode For more information on the service mode see S...

Page 137: ... and down Press to select a choice Press to return to the Service menu or to return to the Run screen WARNING This adjustment should only be performed by an instrument service technician XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG OUTPUT CAL VOLTAGE CHANNEL 1 VOLTAGE CHANNEL 2 VOLTAGE CHANNEL 3 VOLTAGE CHANNEL 4 VOLTAGE CHANNEL 5 VOLTAGE CHANNEL 6 CURRENT CHANNEL 1 ª RANGE AV...

Page 138: ... Service Analog Out Calibration Select Channel Calibrate Zero Use the and to increment or decrement the numeric value Press to save the value Press to return to the Analog Out Calibration screen or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG OUTPUT CAL CALIBRATE ZERO CALIBRATE FULL SCALE RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM ...

Page 139: ...ress to save the value Press to return to the Analog Out Calibration screen or to return to the Run screen Analog Input Calibration The Analog Input Calibration menu is a selection of analog input to calibrate and allows the user to select the calibration action zero or span The analog input calibration is visible only when the instrument is in service mode For more information on the service mode...

Page 140: ... return to the Run screen WARNING This adjustment should only be performed by an instrument service technician XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ANALOG INPUT CAL INPUT CHANNEL 1 INPUT CHANNEL 2 INPUT CHANNEL 3 INPUT CHANNEL 4 INPUT CHANNEL 5 INPUT CHANNEL 6 INPUT CHANNEL 7 ª RANGE AVG DIAGS ALARM INPUT CHANNEL 8 XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx AN...

Page 141: ...screen Analog Input Calibrate Full Scale The Analog Input Calibration Full Scale screen allows the user to calibrate the full scale state of the selected analog input In the Main Menu choose Service Analog Input Calibration Select Channel Calibrate Full Scale Hook up a voltage source of 10 V to the analog input channel Use the and to increment or decrement the numeric value Press to save the value...

Page 142: ...ervice Display Pixel Test Press to begin test by turning all pixels ON then toggle between on and off Press to return to the Service menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMX ANALOG INPUT CAL SPAN PROVIDE VOLTAGE TO INPUT SELECTED INPUT INPUT 1 CURRENTLY 0 00 V SET TO 0 00 V CALIBRATE TO VALUE RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 1...

Page 143: ...o overwrite all user settings with factory default values Press to return to the Service menu or to return to the Run screen Password The Password menu allows the user to configure password protection This menu is only shown if the password has been entered or the password has not been set For information on entering a new password see Enter Password below In the Main Menu choose Password Use and ...

Page 144: ...rd Menu or to return to the Run screen Change Password The Change Password is used to set or change the password used to unlock the instrument s front panel In the Main Menu choose Password Change Password XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx PASSWORD MENU LOCK ANALYZER CHANGE PASSWORD REMOVE PASSWORD RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 A...

Page 145: ...disable password protection In the Main Menu choose Password Remove Password Press to remove password Press to return to the Password Menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ENTER NEW PASSWORD ENTER PASSWORD RANGE AVG DIAGS ALARM XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx REMOVE PASSWORD PRESSING ENTER WILL REMOVE CURRENT PASSW...

Page 146: ...ed to enter the password to unlock the front panel In the Main Menu choose Password Enter Password Press to enter password and disable instrument lock Press to return to the Password Menu or to return to the Run screen XXLO WCONCENTRATIONXXLO W CO 15 80 PPM SAMPLE 12 34 ALARMx ENTER PASSWORD ENTER PASSWORD RANGE AVG DIAGS ALARM ...

Page 147: ... National Institute of Standards and Technology NIST CO in Air Standard Reference Material SRM or an NIST EPA approved gas manufacturer s Certified Reference Material CRM A recommended protocol for certifying CO gas cylinders against a CO SRM or CRM is given in the Quality Assurance Handbook1 The CO gas cylinder should be recertified on a regular basis determined by the local quality control progr...

Page 148: ...sig is usually sufficient for most applications Drying Several drying methods are available Passing the compressed air through a bed of silica gel using a heatless air dryer or removing water vapor with a permeation dryer are three possible approaches Scrubbing The last step in the generation of the zero air is the removal of the remaining contaminants by either further reaction or absorption Fixe...

Page 149: ...chapter Select the operating range and the averaging time of the Model 48i Note The averaging time should be less than the zero duration and less than the span duration Note The calibration and calibration check duration times should be long enough to account for the transition purge process when switching from sample to zero and from zero to span This transition time is the time required to purge...

Page 150: ...ot all flow controllers have a positive shut off it might be necessary to disconnect the CO input line and cap it 3 Allow the instrument to sample zero air until a stable reading is obtained 4 Press and choose Calibration Calibrate Zero 5 In the Calibrate Zero screen press to set the CO reading to zero If a strip chart recorder is used to obtain a record of the analog output it is recommended that...

Page 151: ...ndiluted CO standard ppm FCO flow rate of CO standard corrected to 25 C and 760 mm Hg LPM FD flow rate of dilution air corrected to 25 C and 760 mm Hg LPM 2 Allow the instrument to sample this CO concentration standard until a stable response is obtained 3 From the Main Menu choose Calibration Calibrate Span The first line of the display shows the current CO concentration reading The second line o...

Page 152: ...libration Frequency In order to generate data of the highest confidence it is recommended that a multipoint calibration be performed every three months any time any major disassembly of components is performed any time the zero or span checks give results outside the limits described in the Periodic Zero and Span Checks that follows Periodic Zero and Span Checks In order to achieve data of the hig...

Page 153: ...om the following equation Where Z Recorder response obtained at the last calibration for zero air scale CO Span concentration 3 Latest copy of the Quality Assurance Handbook for Air Pollution Measurement Systems1 should be consulted to determine the level of acceptance of zero and span errors For detailed guidance in setting up a quality assurance program refer to the Code of Federal Regulations3 ...

Page 154: ...y reset the default values Cal Point 1 2 and 3 Adjust Use the following procedure to adjust cal points 1 2 and 3 1 Adjust the zero air flow and the CO flow from the standard CO cylinder to provide a diluted CO concentration of approximately 80 of the upper range limit URL of the instrument The total air flow must exceed the total demand of the instrument connected to the output manifold to ensure ...

Page 155: ...at Step 1 for a 50 concentration of the upper range 7 Select Cal Point 2 8 Use to move the cursor and to increment or decrement the digit values until they match the concentration being introduced to the instrument Press The instrument will perform a series of calculations and save the new parameters 9 Press to back up a step in the Service Mode menu 10 Repeat Step 1 for a 20 concentration of the ...

Page 156: ...tion Manual Thermo Electron Corporation 14 Press to back up a step in the Service Mode menu 15 Select Coefficients and press The instrument will automatically calculate the new coefficients and save the new parameters 16 Repeat Steps 1 through 13 for Hi Multi Point Cal ...

Page 157: ...s and checking the calibration of the pressure and temperature transducers should be performed on a regular basis This chapter includes the following maintenance information and replacement procedures Replacement Parts on page 5 1 Cleaning the Outside Case on page 5 2 Cleaning the Optics on page 5 2 IR Source Replacement on page 5 3 Fan Filter Inspection and Cleaning on page 5 3 Leak Test and Pump...

Page 158: ...to the main bench use a 9 64 inch Allen wrench 3 Remove the relay mirror by removing the three Allen head screws holding it to the main bench use a 9 64 inch Allen wrench 4 Carefully clean each mirror using a cotton swab and methanol Rinse with distilled or deionized water Dry by blowing clean dry air over the mirror 5 Reassemble following the above procedure in reverse It is not necessary to real...

Page 159: ...n an as needed basis it should be replaced when There is no light output After cleaning the optics the IR light intensities remain below 100 000 Hz It is not necessary to recalibrate the Model 48i after replacing the IR source since the Model 48i is a ratio instrument and replacing the IR source does not affect the calibration Fan Filter Inspection and Cleaning Use the following procedure to inspe...

Page 160: ...ot check to see that all fittings are tight and that none of the input lines are cracked or broken For detailed information about this screen refer to the Operation chapter If the pump diaphragm is in good condition and the capillary not blocked it should take less than one minute from the time the inlet is plugged to the time the reading below 250 mm Hg is obtained Leaks Across the Optional Zero ...

Page 161: ...alve and diaphragm 1 Turn instrument OFF unplug the power cord and remove the cover 2 Loosen the fittings and remove both lines going to the pump 3 Remove the four screws from the top plate remove top plate flapper valve and the bottom plate Figure 5 2 Rebuilding the Pump Equipment Damage Some internal components can be damaged by small amounts of static electricity A properly grounded antistatic ...

Page 162: ...curing the diaphragm to piston and remove diaphragm 5 Assemble the pump by following the previous steps in reverse make sure the Teflon white side of the diaphragm is facing up and that the flapper valves cover the holes of the top and bottom plate 6 Perform the Leak Test and Pump Checkout procedure described in this chapter ...

Page 163: ...ondence with the factory please note both the serial number and program number of the instrument This chapter provides the following troubleshooting and service support information Safety Precautions on page 6 1 Troubleshooting Guides on page 6 1 Board Level Connection Diagrams on page 6 5 Connector Pin Descriptions on page 6 7 Service Locations on page 6 20 Safety Precautions Read the safety prec...

Page 164: ...e fuses visually or with a multimeter Bad switch or wiring connection Unplug the power cord disconnect the switch and check operation with a multimeter Pressure transducer does not hold calibration or is noisy Pressure transducer defective Replace pressure transducer Run output noisy Recorder noise Replace or repair recorder Sample CO concentration varying Run instrument on a span CO source if qui...

Page 165: ...gm replace with pump repair kit if necessary Refer to Preventive Maintenance chapter in this manual Check that capillaries are properly installed and O rings are in good shape Replace if necessary Check flow system for leaks Alarm Flow Flow low Check sample capillary 0 015 inch ID for blockage Replace as necessary If using sample particulate filter make sure it is not blocked Disconnect sample par...

Page 166: ...k user defined low set point set to zero Alarm Zero Check Alarm Span Check Instrument out of calibration Recalibrate instrument Alarm Zero Autocal Alarm Span Autocal Check gas supply Perform manual calibration Alarm Motherboard Status Alarm Interface Status Alarm I O Exp Status Internal cables not connected properly Board is defective Check that all internal cables are connected properly Recycle A...

Page 167: ...R SUPPLY MOTHER BOARD DIGITAL OUTPUT BOARD I O EXPANSION BOARD J14 J3 FRONT PANEL BOARD J1 L C D D IS P L A Y K E Y P A N E L J18 J2 J4 J3 J1 J10 J17 P J1 P J3 P J2 F R O N T P A N E L P O W E R S W 16 P in 4 P in 8 P in 34 P in 3 P in 2 P in 3 P in 3 P in 3 P in P J6 3 P in IP J8 3 P in 8 P in 11 P in 2 P in E X P A N S IO N R S 485 A N A L O G O U T P U T S D IG IT A L IN P U T S P 1 A P 1 B R S...

Page 168: ...5 P in S A M P L E F L O W P R E A M P B O A R D 4 C o n d IR D E T E C T O R M J1 0 M J1 1 F A N 2 P in P J4 2 P in S P A N 1 S O L 2 P in S A M P L E S O L 2 P in A M B IE N T T E M P T H E R M Z E R O S P A N S O L 2 P in P J8 P J9 P J1 0 4 P in 2 P in M J9 2 P in S P A N 2 S O L P J1 1 P O J3 P O J1 1 2 P in IJ1 P 1 2 C o n d IR S O U R C E 3 P in F L O W S W IT C H M J1 4 P E R M O V E N C O ...

Page 169: ...ns Connector Label Reference Designator Pin Signal Description INTF DATA J1 1 Ground 2 RS485 to Interface Board 3 RS485 to Interface Board 10 BASE T J2 1 Ethernet Output 2 Ethernet Output 3 Ethernet Input 4 NC 5 NC 6 Ethernet Input 7 NC 8 NC INTF DATA J1 1 Ground 2 RS485 to Interface Board 3 RS485 to Interface Board 10 BASE T J2 1 Ethernet Output 2 Ethernet Output 3 Ethernet Input 4 NC 5 NC 6 Ethe...

Page 170: ... TTL Input 2 5 Ground 6 TTL Input 5 7 TTL Input 7 8 TTL Input 8 9 TTL Input 10 10 Ground 11 TTL Input 13 12 TTL Input 15 13 Ground 14 Analog Voltage Output 1 15 Analog Voltage Output 3 16 Ground 17 Analog Voltage Output 5 18 Ground 19 Ground 20 Power Fail Relay COM 21 Power Fail Relay N O Contact 22 Ground 23 TTL Input 3 24 TTL Input 4 25 TTL Input 6 Table 6 3 Motherboard Connector Pin Description...

Page 171: ...utput 4 35 Ground 36 Analog Voltage Output 6 37 Ground SER EN J7 1 Serial Enable Jumper 2 3 3V 24V IN J10 1 24V 2 Ground DIGITAL I O J14 1 5V 2 24V 3 24V 4 Ground 5 Ground 6 Ground 7 SPI Reset 8 SPI Input 9 SPI Output 10 SPI Board Select 11 SPI Clock EXT RS485 J15 1 RS485 to Rear Panel 2 RS485 to Rear Panel 3 5V 4 5V 5 5V 6 Ground Table 6 3 Motherboard Connector Pin Descriptions continued Connecto...

Page 172: ...round 2 Ground 3 LCLK LCD Signal 4 Ground 5 Ground 6 LLP LCD Signal 7 LFLM LCD Signal 8 LD4 LCD Signal 9 LD0 LCD Signal 10 LD5 LCD Signal 11 LD1 LCD Signal 12 LD6 LCD Signal 13 LD2 LCD Signal 14 LD7 LCD Signal 15 LD3 LCD Signal 16 LCD Bias Voltage 17 5V 18 Ground 19 Ground 20 LCD_ONOFF LCD Signal 21 Keypad Row 2 Input Table 6 3 Motherboard Connector Pin Descriptions continued Connector Label Refer...

Page 173: ... Ground 33 24V 34 24V RS232 RS485 A P1 A 1 NC 2 Serial Port 1 RX RS485 IN 3 Serial Port 1 TX RS485 OUT 4 NC 5 Ground 6 NC 7 Serial Port 1 RTS RS485 OUT 8 Serial Port 1 CTS RS485 IN 9 NC RS232 RS485 B P1 B 1 NC 2 Serial Port 2 RX RS485 IN 3 Serial Port 2 TX RS485 OUT 4 NC 5 Ground 6 NC 7 Serial Port 2 RTS RS485 OUT 8 Serial Port 2 CTS RS485 IN 9 NC AC IN PJ1 1 AC HOT 2 AC NEUT Table 6 3 Motherboard...

Page 174: ... Reference Designator Pin Signal Description DATA IPJ8 1 Ground 2 RS485 from Motherboard 3 RS485 from Motherboard PREAMP BD IJ1 1 Preamp Signal Input 2 Ground for Shield 3 Ground 4 SPI Data Out 5 SPI CLK 6 SPI CS 7 15V 8 5V 9 18V for IR Source 10 Ground 11 100V 12 100V Return PRES MJ10 1 Pressure Sensor Input 2 Ground 3 15V 4 15V FLOW MJ11 1 Flow Sensor Input 2 Ground Table 6 3 Motherboard Connect...

Page 175: ...MISTOR 2 Ground 3 AC HOT 4 AC BENCH HEATER 24V IN P1 1 24V 2 Ground FAN PJ4 1 24V 2 Ground AC PUMP PJ5 1 AC HOT 2 AC NEUT 3 AC Ground Z S SOL PJ8 1 24V 2 Zero Span Solenoid Control SAMPLE SOL PJ9 1 24V 2 Sample Solenoid Control SPAN1 SOL PJ10 1 24V 2 Converter Solenoid Control SPAN2 SOL PJ11 1 24V 2 Span 2 Solenoid Control AC O2 J3 1 AC HOT 2 AC NEUT 3 AC Ground Table 6 4 Measurement Interface Boa...

Page 176: ...otor Drive Voltage 2 3 Motor Drive Voltage 3 4 Motor Drive Voltage 4 OPT IJ2 1 Optical Pickup Signal Input 2 Ground 3 Optical Pickup Power Table 6 5 Front Panel Board Connector Pin Diagram Connector Label Reference Designator Pin Signal Description MOTHER BOARD J1 1 Ground 2 Ground 3 LCLK LCD Signal 4 Ground 5 Ground 6 LLP LCD Signal 7 LFLM LCD Signal 8 LD4 LCD Signal 9 LD0 LCD Signal 10 LD5 LCD S...

Page 177: ...d Row 1 Input 23 Keypad Row 4 Input 24 Keypad Row 3 Input 25 Keypad Col 2 Select 26 Keypad Col 1 Select 27 Keypad Col 4 Select 28 Keypad Col 3 Select 29 Ground 30 Ground 31 Ground 32 Ground 33 24V 34 24V LCD DATA J2 1 LFLM_5V LCD Signal 2 LLP_5V LCD Signal 3 LCLK_5V LCD Signal 4 LCD_ONOFF_5V LCD Signal 5 5V 6 Ground 7 LCD Bias Voltage 8 LD0_5V LCD Signal 9 LD1_5V LCD Signal Table 6 5 Front Panel B...

Page 178: ...t 7 Keypad Col 3 Select 8 Keypad Col 4 Select LCD BACKLIGHT J4 1 LCD Backlight Voltage 1 2 NC 3 NC 4 LCD Backlight Voltage 2 Table 6 6 I O Expansion Board Optional Connector Pin Descriptions Connector Label Reference Designator Pin Signal Description EXPANSION I O J1 1 Analog Voltage Input 1 2 Analog Voltage Input 2 3 Analog Voltage Input 3 4 Ground 5 Analog Voltage Input 4 6 Analog Voltage Input ...

Page 179: ...Current Output 4 22 Current Output Return 23 Current Output 5 24 Current Output Return 25 Current Output 6 MOTHER BD J2 1 5V 2 24V 3 24V 4 Ground 5 Ground 6 Ground 7 RS485 to Motherboard 8 RS485 to Motherboard Table 6 7 Digital Output Board Connector Pin Descriptions Connector Label Reference Designator Pin Signal Description MOTHER BD J1 1 5V 2 24V 3 24V 4 Ground Table 6 6 I O Expansion Board Opt...

Page 180: ...ntact a 8 Relay 8 Contact a 9 Relay 9 Contact a 10 Relay 10 Contact a 11 NC 12 Solenoid Drive Output 1 13 Solenoid Drive Output 2 14 Solenoid Drive Output 3 15 Solenoid Drive Output 4 16 Solenoid Drive Output 5 17 Solenoid Drive Output 6 18 Solenoid Drive Output 7 19 Solenoid Drive Output 8 20 Relay 1 Contact b 21 Relay 2 Contact b 22 Relay 3 Contact b 23 Relay 4 Contact b 24 Relay 5 Contact b 25 ...

Page 181: ...mp Board Connector Pin Descriptions Connector Label Signal Description OUT Preamp Signal Output SH Ground for Shield BLK Ground GRN SPI Data Out ORG SPI CLK VIO SPI CS BLU 15V BRN 5V RED 18V for IR Source WHT 100V BLK 100V Return YEL 18V for IR Source YEL IR Source Return RED IR Detector Cooler BLK IR Detector Cooler WHT IR Detector Table 6 7 Digital Output Board Connector Pin Descriptions continu...

Page 182: ...additional assistance Thermo Electron has service available from exclusive distributors worldwide Contact one of the phone numbers below for product support and technical information 866 282 0430 508 520 0430 WHT IR Detector Table 6 8 Pre amp Board Connector Pin Descriptions continued Connector Label Signal Description ...

Page 183: ...rameters and functions that are useful when making adjustments or diagnosing problems For additional service assistance see Service Locations at the end of this chapter This chapter includes the following parts information and component replacement procedures Safety Precautions on page 7 3 Firmware Updates on page 7 3 Replacement Parts List on page 7 4 Cable List on page 7 5 Fuse Replacement on pa...

Page 184: ... Replacement on page 7 25 Optional Zero Span and Sample Solenoid Valve Replacement on page 7 26 Analog Output Testing on page 7 27 Analog Output Adjustment on page 7 29 Ambient Temperature Calibration on page 7 30 I O Expansion Board Optional Replacement on page 7 31 Digital Output Board Replacement on page 7 33 Motherboard Replacement on page 7 34 Measurement Interface Board Replacement on page 7...

Page 185: ...vice procedures in this manual are restricted to qualified service representatives If the equipment is operated in a manner not specified by the manufacturer the protection provided by the equipment may be impaired CAUTION Carefully observe the instructions in each procedure Equipment Damage Some internal components can be damaged by small amounts of static electricity A properly grounded antistat...

Page 186: ...0 240VAC Optional 101863 00 Transformer 100VAC Optional 100868 00 Measurement Interface Board 101780 00 Detector Assy 101686 00 Heater Board Assembly 101023 00 Pressure Transducer 102055 00 Flow Transducer Sample 101390 00 Solenoid Valve 101426 00 Pump 110VAC w Plate and Fittings 8606 Pump Repair Kit for 101426 00 101055 00 AC Receptacle Assembly 101681 00 Power Supply Assembly 24VDC w Base Plate ...

Page 187: ...B25 101556 00 Terminal Block and Cable Kit DB37 Table 7 1 Model 48i Replacement Parts continued Part Number Description Table 7 2 Model 48i Cables Part Number Description 101036 00 DC Power Supply 24V Output 101037 00 115VAC Supply to Measurement Interface Board 101048 00 RS 485 Data 101038 00 Power Switch to Motherboard 101364 00 DC Power Supply Status Monitor 101054 00 Motherboard to Front Panel...

Page 188: ...gure 7 2 Component Layout Flow Transducer Pressure Transducer Pump Motor and Wheel Assy IR Source Cover Detector Assy and Pre Amp I O Expansion Board Opt Digital Output Board Motherboard Power Supply Measurement Interface Board Front Panel Board Front Panel Thermistor Optical Bench Fan ...

Page 189: ... the Measurement Bench and Lowering the Partition Panel Equipment Required Philips screwdriver 1 Turn instrument OFF and unplug the power cord 2 If the instrument is mounted in a rack remove it from the rack 3 Remove the cover Captive Screw Remove Bench then Remove Screw Pass Through Connectors Partition Panel REMOVE SCREWS SLIDE BENCH OUT LOWER PANEL Hidden Screw Equipment Damage Some internal co...

Page 190: ...at the rear of the measurement bench and pull the measurement bench from the rear of the case 10 Remove the screw at the top rear of the partition panel securing the top of partition panel to the measurement bench and lower the panel being careful not to put excessive tension on the cables 11 Replace the measurement bench by following the previous steps in reverse Fuse Replacement Use the followin...

Page 191: ...iver Adjustable wrench 1 Turn instrument OFF unplug the power cord and remove the cover 2 Remove the fan guard from the fan and remove the filter 3 Pull the power connectors off the fan 4 Remove the four fan mounting screws and remove the fan 5 Install a new fan following the previous steps in reverse Equipment Damage Some internal components can be damaged by small amounts of static electricity A...

Page 192: ...cover screws holding the IR source cover to the motor plate and remove the IR source cover 3 Loosen both clamp screws from the IR source mounting posts and remove IR source 4 Install a new IR source by following the previous steps in reverse Ensure that the IR source element is evenly spaced between the mounting posts Fan Guard Filter Mounting Screws 4 Equipment Damage Some internal components can...

Page 193: ...ource Filter Wheel Replacement Use the following procedure to replace the filter wheel Equipment Required Filter wheel Allen wrenches 5 32 inch and 5 64 inch Philips screwdriver Brass Connectors 2 Washers 2 Cover Screws 2 Clamp Screws 2 IR Source Mounts IR Source IR Source Cover Motor Plate Filter Wheel SEMS Nuts 4 Access Hole ...

Page 194: ...ess hole in the bottom of the motor plate loosen the set screw holding the filter wheel to the motor shaft and carefully pry the filter wheel off the motor shaft Figure 7 5 5 Install new filter wheel by following the previous steps in reverse Make sure that the set screw seats on the flat of the motor shaft 6 After the filter wheel is installed spin the wheel and observe that it runs true on the m...

Page 195: ...le the Service Mode to ON c Press to return to the Main Menu d Continue the procedure at Step 6 to access the Initial S R Ratio screen 9 At the Initial S R Ratio screen press to select set the initial S R ratio to the value of the current ratio and press to store the value The initial S R ratio should be between 1 14 and 1 18 10 Calibrate the instrument Chopper Motor Replacement Use the following ...

Page 196: ... motor shaft and tighten the set screw 6 Calibrate the instrument Refer to the Calibration chapter in this manual Optical Bench Replacement Use the following procedure to replace the optical bench Figure 7 7 Equipment Required Optical bench Philips screwdriver 1 Turn instrument OFF unplug the power cord and remove the cover 2 Disconnect the chopper motor cable from the MOT DRV connector on the mea...

Page 197: ...h Replacement Use the following procedure to replace the optical switch Figure 7 8 Equipment Required Optical switch Flatblade screwdriver Philips screwdriver 1 Turn instrument OFF unplug the power cord and remove the cover 2 Remove the optical bench following the Optical Bench Replacement procedure in this chapter Shock Mounts 4 Standoffs 4 Equipment Damage Some internal components can be damaged...

Page 198: ...e case and remove the optical switch 4 Install the new optical switch by following the previous steps in reverse Figure 7 8 Replacing the Optical Switch Inverted View Bench Heater Assembly Replacement Use the following procedure to replace the bench heater assembly Figure 7 8 Equipment Required Bench heater Heat conductive compound Flatblade screwdriver Optical Switch Heater Heater Heater Board As...

Page 199: ...amplifier assembly Figure 7 9 Equipment Required detector preamplifier assembly Allen wrenches 3 32 inch and 7 64 inch 1 Turn instrument OFF unplug the power cord and remove the cover 2 Disconnect the cable from the PREAMP connector on the measurement interface board and disconnect the two wires from the top of the chopper motor plate 3 Remove the two screws holding the preamplifier cover to the p...

Page 200: ...teps in reverse Figure 7 9 Replacing the Detector Preamplifier Assembly Pump Replacement Use the following procedure to rebuild the pump Figure 7 10 Equipment Required Pump Nut driver Philips screwdriver 1 Turn instrument OFF unplug the power cord and remove the cover To PREAMP on Measurement Interface Board To Motor Plate Preamp Cover Preamp Board Access Holes Optical Bench Detector Assy Equipmen...

Page 201: ...to the shock mounts and remove the pump assembly and the shock mounts 5 Invert the pump assembly remove the two pump mounting screws located on the bottom side of the pump bracket and remove the bracket from the pump 6 Install the new pump by following the previous steps in reverse 7 Perform a leak test as described in the Preventive Maintenance chapter Figure 7 10 Replacing the Pump Pump Pump Bra...

Page 202: ...ote the plumbing connections to facilitate reconnection 3 Disconnect the pressure transducer from the PRES connector on the measurement interface board 4 Remove the two pressure transducer assembly retaining screws and remove the pressure transducer assembly Figure 7 11 Figure 7 11 Replacing the Pressure Transducer 5 To install the pressure transducer assembly follow the previous steps in reverse ...

Page 203: ...ected to sea level it may be necessary to correct the reading to local pressure by subtracting 0 027 mm Hg per foot of altitude Do not attempt to calibrate the pressure transducer unless the pressure is known accurately Equipment Required Vacuum pump 1 Turn instrument OFF unplug the power cord and remove the cover 2 Disconnect the tubing from the pressure transducer and connect a vacuum pump known...

Page 204: ...ssure Zero screen appears 5 Wait at least 10 seconds for the zero reading to stabilize then press to save the zero pressure value 6 Disconnect the pump from the pressure transducer 7 Press to return to the Pressure Sensor Cal screen 8 At the Pressure Sensor Cal screen press to select Span The Calibrate Pressure Span screen appears 9 Wait at least 10 seconds for the ambient reading to stabilize use...

Page 205: ...umbing connections from the flow transducer Note the plumbing connections to facilitate reconnection 4 Remove the two retaining screws holding the flow transducer to the floor plate and remove the flow transducer Figure 7 12 Figure 7 12 Replacing the Flow Transducer 5 Install the new flow transducer following the previous steps in reverse 6 Calibrate the flow transducer Refer to the Flow Transduce...

Page 206: ...llowing procedure to display it a At the Main Menu press to scroll to Instrument Controls press to scroll to Service Mode and press The Service Mode screen appears b Press to toggle the Service Mode to ON c Press to return to the Main Menu d Continue the procedure at Step 2 to access the Flow Sensor Cal screen WARNING The service procedures in this manual are restricted to qualified service repres...

Page 207: ... 8 Press to return to the Flow Sensor Cal screen 9 At the Flow Sensor Cal screen press to select Span The Calibrate Flow Span screen appears 10 Wait at least 10 seconds for the reading to stabilize use and to enter the flow sensor reading and press to save the value 11 Install the cover Capillary Cleaning or Replacement Use the following procedure to clean or replace the capillary Figure 7 13 Equi...

Page 208: ... in reverse Figure 7 13 Cleaning or Replacing the Capillary Optional Zero Span and Sample Solenoid Valve Replacement Use the following procedure to replace the solenoid Equipment Required Solenoid Philips screwdriver Wrench 9 16 inch 1 Turn instrument OFF unplug the power cord and remove the cover 2 Unplug the solenoid electrical connector from the measurement interface board Capillary Equipment D...

Page 209: ... Analog Output Testing The analog outputs should be tested if the concentration value on the front panel display disagrees with the analog outputs To check the analog outputs you connect a meter to an analog voltage output channel and compare the meter reading with the output value set on the Test Analog Outputs screen Use the following procedure to test the analog outputs 1 Connect a meter to the...

Page 210: ...connected and press The Set Analog Outputs screen displays 4 Press to set the output to full scale The Output Set To field displays Full Scale 5 Check that the meter is displaying the full scale value If the meter reading differs by more than one percent the analog outputs should be adjusted Refer to the Analog Output Adjustment procedure that follows 6 Press to set the output to zero The Output S...

Page 211: ... the associated channels 2 From the Main Menu press to scroll to Service press to scroll to Analog Output Calibration and press The Analog Output Cal screen displays If the Service Mode is not displayed on the Main Menu use the following procedure to display it a At the Main Menu press to scroll to Instrument Controls press to scroll to Service Mode and press The Service Mode screen displays b Pre...

Page 212: ...n Use the following procedure to calibrate the ambient internal temperature for the instrument Equipment Required Calibrated thermometer or 10K 1 resistor 1 Remove the instrument cover 2 Tape the thermistor Figure 7 3 to a calibrated thermometer WARNING The service procedures in this manual are restricted to qualified service representatives If the equipment is operated in a manner not specified b...

Page 213: ...ure Calibration and press The Calibrate Ambient Temperature screen appears If the Service Mode is not displayed on the Main Menu use the following procedure to display it a At the Main Menu press to scroll to Instrument Controls press to scroll to Service Mode and press The Service Mode screen appears b Press to toggle the Service Mode to ON c Press to return to the Main Menu d Continue the proced...

Page 214: ...oard connector to the rear panel Figure 7 16 4 Pop off the board from the mounting studs and remove the board 5 To install the I O expansion board follow previous steps in reverse Figure 7 15 Replacing the I O Expansion Board Optional Equipment Damage Some internal components can be damaged by small amounts of static electricity A properly grounded antistatic wrist strap must be worn while handlin...

Page 215: ... 3 16 inch 1 Turn instrument OFF unplug the power cord and remove the cover 2 Remove the I O expansion board optional if used See the I O Expansion Board Replacement procedure in this chapter 3 Disconnect the digital output board ribbon cable from the motherboard Motherboard Digital Output Board I O Expansion Board Equipment Damage Some internal components can be damaged by small amounts of static...

Page 216: ...driver Nut driver 3 16 inch 1 Turn instrument OFF unplug the power cord and remove the cover 2 Remove the I O expansion board optional if used See the I O Expansion Board Replacement procedure in this chapter 3 Remove the digital output board See the Digital Output Board Replacement procedure in this chapter 4 Unplug all connectors from the motherboard Note connector locations to facilitate reconn...

Page 217: ...quired Measurement interface board Philips screwdriver 1 Unplug all connectors Note the locations of the connectors to facilitate reconnection 2 Pop off the measurement interface board from the four mounting studs and remove the board 3 To install the measurement interface board follow the previous steps in reverse 4 Re install the measurement bench Refer to Removing the Measurement Bench in this ...

Page 218: ...d and remove the cover 2 Remove the three ribbon cables and the two wire connector from the front panel board 3 Pop off the board from the two top mounting studs and remove the board by lifting it up and off the slotted bottom support 4 Replace the front panel board by following previous steps in reverse Measurement Interface Board Mounting Studs 4 Equipment Damage Some internal components can be ...

Page 219: ...to replace the LCD module Figure 7 18 Equipment Required LCD module Philips screwdriver Ribbon Cables 3 Two Wire Connector Mounting Studs 2 Bottom Support LCD Module Screws 2 Front Panel Board LCD Module Retaining Screw CAUTION If the LCD panel breaks do not to let the liquid crystal contact your skin or clothes If the liquid crystal contacts your skin or clothes wash it off immediately using soap...

Page 220: ...e by following previous steps in reverse Equipment Damage Some internal components can be damaged by small amounts of static electricity A properly grounded antistatic wrist strap must be worn while handling any internal component Do not remove the panel or frame from the module The polarizing plate is very fragile handle it carefully Do not wipe the polarizing plate with a dry cloth it may easily...

Page 221: ...uction Manual 7 39 Service Locations For additional assistance Thermo Electron has service available from exclusive distributors worldwide Contact one of the phone numbers below for product support and technical information 866 282 0430 Toll Free 508 520 0430 International ...

Page 222: ...Servicing Service Locations 7 40 Model 48i Instruction Manual Thermo Electron Corporation ...

Page 223: ...escription of the system electronics and input output connections and functions Hardware on page 8 2 describes the analyzer components Software on page 8 5 provides an overview of the software organization and detailed information on the software tasks Electronics on page 8 7 describes the system boards assemblies and connectors I O Components on page 8 10 describes the input and output communicat...

Page 224: ...Hardware Model 48i hardware components Figure 8 1 include Optical bench Band pass filter Bench heater board Chopper motor Optical pickup Gas filter wheel Infrared source Pre amplifier assembly with IR detector Sample flow sensor Pressure transducer Capillary Pump Purge flow switch optional ...

Page 225: ...bench to a narrow band of the infrared portion of the spectrum Bench Heater Board The bench heater board applies power to the bench heater resistors and transmits the bench temperature monitored by a thermistor This assembly is used for maintaining the optical bench at a constant temperature Chopper Motor The chopper motor spins the gas filter wheel and chopper disk at a uniform speed Flow Transdu...

Page 226: ...d at high temperature to create infrared radiation Pre amplifier Assembly with IR Detector The pre amplifier assembly is mounted on the optical bench along with an infrared detector that detects the energy of the infrared light passing through the optical bench It amplifies the pulsating signal from the infrared detector Sample Flow Sensor The sample flow sensor located at the optical bench outlet...

Page 227: ... frequency counters analog I O and digital I O are read and written to by the low level processor The counters are accumulated over the past second and the analog inputs are averaged over that second The high level processor polls the low level processors once per second to exchange the measurement and control data Monitoring Signals Signals are gathered from the low level processors once per seco...

Page 228: ...faulted based on the measurement range The defaults are calculated by dividing the data values by the full scale range for each of the three parameters and then multiplying each result by the user selected output range Negative concentrations can be represented as long as they are within 5 of full scale The zero and span values may be set by the user to any desired value ...

Page 229: ...l and or over I O connections on the rear panel and sends commands to the other boards to control the functions of the instrument and to collect measurement and diagnostic information The motherboard outputs instrument status and measurement data to the front panel mounted graphics display and to the rear panel I O The motherboard also contains I O circuitry and the associated connector to monitor...

Page 230: ... 120VAC output and thermistor input from the bench heater board Flow and pressure sensor inputs Chopper motor output Optical pickup input Pre amp board Ambient temperature thermistor Purge flow switch input Flow Sensor Assembly The flow sensor assembly consists of a board containing an instrumentation amplifier and a flow transducer with input and output gas fittings The flow transducer output is ...

Page 231: ...enoid driver outputs and relay contact outputs to a connector located on the rear panel of the instrument Ten relay contacts normally open with power off are provided which are electrically isolated from each other Eight solenoid driver outputs open collector are provided along with a corresponding 24VDC supply pin on the connector I O Expansion Board Optional The I O expansion board connects to t...

Page 232: ...um resolution of 12 bits 0 100mV 0 1V 0 5V 0 10V The user can calibrate each analog output zero and span point through firmware At least 5 of full scale over and under range are also supported The analog outputs may be assigned to any measurement or diagnostic channel with a user defined range in the units of the selected parameter The voltage outputs are independent of the current outputs Analog ...

Page 233: ... mA 200VDC The power fail relay is Form C both normally opened and normally closed contacts All other relays are Form A normally opened contacts and are used to provide alarm status and mode information from the analyzer as well as remote control to other devices such as for controlling valves during calibration The user may select what information is sent out each relay and whether the active sta...

Page 234: ...ble PC However a straight cable one to one may be required when connecting the analyzer to other remote devices As a general rule when the connector of the host remote device is female a straight cable is required and when the connector is male a null modem cable is required Data Format 1200 2400 4800 9600 19200 38400 57600 or 115200 BAUD 8 data bits 1 stop bit no parity All responses are terminat...

Page 235: ...V4 addressing The IP address may be configured for static addressing or dynamic addressing set using a DHCP server Any serial port protocols may be accessed over Ethernet in addition to the serial port External Accessory Connector The external accessory connector is not used in the Model 48i analyzer This port is used in other models to communicate with smart external devices that may be mounted h...

Page 236: ...System Description I O Components 8 14 Model 48i Instruction Manual Thermo Electron Corporation ...

Page 237: ...RO port Zero and span gas should be supplied at atmospheric pressure It may be necessary to use an atmospheric dump bypass plumbing arrangement to accomplish this For more information refer to the Installation chapter and the Operation chapter Internal Zero Air Scrubber The internal zero air scrubber is mounted inside the instrument and provides a source of zero air Filter Wheel Purge The filter w...

Page 238: ...n this option Other than the effect of the purge gas operation and calibration of the instrument is not affected by the addition of the purge housing A constant purge flow of approximately 140cc min is recommended for optimum performance This is produced by feeding a purge gas to the rear panel bulkhead at a constant pressure of 15 psig A 0 000 inch glass capillary green will deliver the required ...

Page 239: ...erface for these inputs and outputs Terminal Block and Cable Kits The terminal block and cable kit provides a convenient way to connect devices to the analyzer The kit breaks out the signals on the rear panel connector to individual numbered terminals Two types of terminal block and cable kits are available One kit is for the DB37 connectors and can be used for either the analog output connector o...

Page 240: ...hrough Figure 9 5 Figure 9 2 Rack Mount Option Assembly Table 9 1 Mounting Options Mounting Type Description Bench Positioned on bench includes mounting feet and front panel side trim handles EIA rack Mounted in an EIA style rack includes mounting slides and front panel EIA rack mounting handles Retrofit rack Mounted in a Thermo non EIA rack includes mounting slides and retrofit front panel rack m...

Page 241: ...Thermo Electron Corporation Model 48i Instruction Manual 9 5 Figure 9 3 Bench Mounting ...

Page 242: ...9 6 Model 48i Instruction Manual Thermo Electron Corporation Figure 9 4 EIA Rack Mounting ...

Page 243: ...Thermo Electron Corporation Model 48i Instruction Manual 9 7 Figure 9 5 Retrofit Rack Mounting ...

Page 244: ...Optional Equipment Mounting Options 9 8 Model 48i Instruction Manual Thermo Electron Corporation ...

Page 245: ... party supplier s warranty to the extent the same is assignable In no event shall Seller have any obligation to make repairs replacements or corrections required in whole or in part as the result of i normal wear and tear ii accident disaster or event of force majeure iii misuse fault or negligence of or by Buyer iv use of the Products in a manner for which they were not designed v causes external...

Page 246: ... EVENT OF A DEFECTIVE PRODUCT EXCEPT AS EXPRESSLY PROVIDED IN THIS SECTION 8 SELLER DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED ORAL OR WRITTEN WITH RESPECT TO THE PRODUCTS INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE SELLER DOES NOT WARRANT THAT THE PRODUCTS ARE ERROR FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT ...

Page 247: ...age B 8 describes and gives examples of the measurement commands Alarms on page B 11 describes and gives examples of the alarm commands Diagnostics on page B 15 describes and gives examples of the diagnostic commands Datalogging on page B 16 describes and gives examples of the datalogging commands Calibration on page B 22 describes and gives examples of the calibration commands Keys Display on pag...

Page 248: ...change instrument parameters via remote However the command set mode remote can be sent to the analyzer to put it in the remote mode Report commands commands that don t begin with set can be issued either in the remote or local mode For information on changing modes see Chapter 3 Operation The commands can be sent in either uppercase or lowercase characters Each command must begin with the proper ...

Page 249: ...hamber temperature alarm maximum value B 12 alarm chamber temp min Reports sets chamber temperature alarm minimum value B 12 alarm conc max Reports sets current CO concentration alarm maximum value B 12 alarm conc min Reports sets current CO concentration alarm minimum value B 12 alarm internal temp max Reports sets internal temperature alarm maximum value B 13 alarm internal temp min Reports sets...

Page 250: ...sets current CO coefficient B 23 coef 0 Reports coefficients of the curve developed from hi multi point calibration B 23 coef 1 Reports coefficients of the curve developed from hi multi point calibration B 23 coef 2 Reports coefficients of the curve developed from hi multi point calibration B 23 contrast Reports sets current screen contrast B 30 copy lrec to sp Sets copies current lrec selection i...

Page 251: ...exadecimal digits or flags that represent the status of the AGC circuit pressure and temperature compensation status gas units gas mode and alarms B 10 flow Reports current measured sample flow in LPM B 9 format Reports sets current reply termination format B 34 gas mode Reports current mode of sample zero or span B 28 gas unit Reports sets current gas units B 29 he help Simulates pressing help pu...

Page 252: ... index numbers and variables B 39 list var din Reports list of digital input index numbers and variables B 39 list var dout Reports list of digital output index numbers and variables B 39 low avg time Reports sets low averaging time B 8 low co Reports CO concentration calculated with low range coefficients B 9 low co coef Reports sets low range CO coefficient B 23 low coef 0 Reports coefficients o...

Page 253: ...rts sets current range mode B 28 ratio Reports sample reference ratio B 10 relay stat Reports sets relay logic status to for the designated relay s B 39 ri right Simulates pressing right pushbutton B 25 ru run Simulates pressing run pushbutton B 25 sample Sets zero span valves to sample mode B 28 save Stores parameters in FLASH B 31 save params Stores parameters in FLASH B 31 sc screen C series le...

Page 254: ... time selection set low avg time selection These commands set the averaging time high and low averaging times according to Table B 2 The example below sets the low range averaging time to 120 seconds Send set low avg time 8 Receive set low avg time 8 ok stream time Reports sets a time stamp to streaming data or not B 22 temp comp Reports sets temperature compensation on or off B 29 time Reports se...

Page 255: ...below reports that the current optical chamber temperature is 45 2 C Send chamber temp Receive chamber temp 45 2 deg C internal temp This command reports the current internal instrument temperature The first reading is the temperature being used in instrument calculations The second temperature is the actual temperature being measured If temperature compensation is on then both temperature reading...

Page 256: ...mmHg Send pres Receive pres 753 4 mmHg ratio high ratio low ratio The ratio command reports the sample reference ratio in single mode The high ratio commands reports the sample reference ratio using high averaging time and the low ratio command using low averaging time when operating in dual or auto mode The example below shows that the current ratio is 1 16110 Send ratio Receive ratio 1 161100 fl...

Page 257: ...larm minimum value is 20 Send alarm agc intensity min Receive alarm agc intensity min 20 set alarm agc intensity min value set alarm agc intensity max value These commands set the agc intensity alarm minimum and maximum values to value where value is a floating point number representing agc intensity alarm limits The example below sets the agc intensity alarm maximum value to 20 Send set alarm agc...

Page 258: ...ands report the chamber temperature alarm minimum and maximum value current settings The example below reports that the chamber temperature alarm minimum value is 35 0 C Send alarm chamber temp min Receive alarm chamber temp min 35 0 deg C set alarm chamber temp min value set alarm chamber temp max value These commands set the chamber temperature alarm minimum and maximum values to value where val...

Page 259: ... value These commands set the internal temperature alarm minimum and maximum values to value where value is a floating point number representing internal temperature alarm limits in degrees C The example below sets the internal temperature alarm maximum value to 45 0 C Send set internal temp alarm max 45 Receive set internal temp alarm max 45 ok alarm motor speed min alarm motor speed max These co...

Page 260: ...mple flow max These commands report the sample flow alarm minimum and maximum value current settings The example below reports that the sample flow alarm minimum value is 2 LPM Send alarm sample flow min Receive alarm sample flow min 2 l min set alarm sample flow min value set alarm sample flow max value These commands set the sample flow alarm minimum and maximum values to value where value is a ...

Page 261: ...upply voltage The example below reports that the bias voltage is 102 3 volts Send bias voltage Receive bias voltage 102 3 V diag volt mb This command reports the diagnostic voltage measurements on the motherboard The sequence of voltages is Positive 24 positive 15 positive 5 positive 3 3 and negative 3 3 Each voltage value is separated by a space Send diag volt mb Receive diag volt mb 24 1 14 9 4 ...

Page 262: ...t records that have been saved The example below clears short records Send set clr srecs Receive set clr srecs ok list din list dout These commands report the current selection for the digital outputs in the format Output no Index number variable name active state The active state for digital outputs is open or closed The active state for digital inputs is high or low Send list dout Receive list d...

Page 263: ...lr01 10 15 05 12 03 flags 9c040000 co 7349E 0 loco 5994E 0 intt 33 2 cht 44 7 pres 758 9 smplfl 1 085 speed 100 0 biasv 115 5 intensity 1999940 erec This command returns a brief description of the main operating conditions at the time the command is issued i e dynamic data The example below shows a typical response The format is defined by the current settings of format and erec format commands Fo...

Page 264: ...03 flags 9c040000 co 7349E 0 loco 5994E 0 intt 33 2 cht 44 7 pres 758 9 smplfl 1 085 speed 100 0 biasv 115 5 intensity 1999940 10 15 05 12 03 flags 9c040000 co 7349E 0 loco 5994E 0 intt 33 2 cht 44 7 pres 758 9 smplfl 1 085 speed 100 0 biasv 115 5 intensity 1999940 10 15 05 12 03 flags 9c040000 co 7349E 0 loco 5994E 0 intt 33 2 cht 44 7 pres 758 9 smplfl 1 085 speed 100 0 biasv 115 5 intensity 199...

Page 265: ...Send lrec layout Receive lrec layout s s lx f f f f t D L ffff s r pres intensity motor lrec mem size srec mem size These commands report the long and short records that can be stored with the current settings and the number of blocks reserved for long and short records To calculate the number of short records per block add 2 to the number of records and then divide by the number of blocks The exa...

Page 266: ... long records have been stored in the memory Send no of lrec Receive no of lrec 50 recs malloc lrec malloc srec These commands report the currently set memory allocation for long and short records in percent of total memory Send malloc lrec Receive malloc lrec 10 set malloc lrec value set malloc srec value value 0 to 100 These commands set the percent of memory space allocated for long and short r...

Page 267: ...sp Receive set copy lrec to sp ok sp field number This command reports the variable number and name stored at index in the scratch pad list The example below shows that the field 5 in the scratch pad is set to index number 13 which is for the variable pressure Send sp field 5 Receive sp field 5 13 pres sp field number value number 1 32 is the maximum number of fields in long and short record lists...

Page 268: ... if the streaming data string will have a time stamp attached to it or not according to Table B 5 Send stream time Receive stream time 0 set stream time value This command enables value where value is to attach or disable time stamp to streaming data string according to Table B 5 The example below attaches a time stamp to streaming data Send set stream time 0 Receive set stream time 0 ok Calibrati...

Page 269: ...orrect the instrument responds with can t wrong settings The example below reports that the CO coefficient is 1 200 Send co coef Receive co coef 1 200 set co coef value set high co coef value set low co coef value These commands set the CO coefficients to user defined values to value where value is a floating point representation of the coefficient The example below sets the CO coefficient to 1 20...

Page 270: ...alue is a floating point representation of the background in current selected units The example below sets the CO background to 1 4 ppm Send set co bkg 1 400 Receive set co bkg 1 400 ok init ratio This command reports the initial sample reference ratio The example below reports that the initial ratio was 1 16210 Send initial ratio Receive initial ratio 1 16210 sp conc high sp conc low sp conc Thes...

Page 271: ...eft me menu ri right ru run up 1 2 3 4 These commands simulates pressing the front panel pushbuttons The numbers represent the front panel soft keys from left to right Send push enter Receive push enter ok isc iscreen This command retrieves the framebuffer data used for the display on the iSeries instrument It is 19200 bytes in size 2 bits per pixel 4 pixels per byte arranged as 320 by 240 charact...

Page 272: ...ty on the C series Screen information is reported using the iScreen command above Send screen Receive screen This is an I series Instrument Screen Information not available Void unpackDisplay void far tdib unsigned char far rlescreen int i j k unsigned char far sc4bpp sc2bpp screen ptr ptr screen unsigned char far malloc 19200 RLE decode the screen for i 0 i 19200 ptr screen 19200 i ptr rlescreen ...

Page 273: ...w reports that the CO full scale range to 50 ppm according to Table B 6 Send range Receive range 6 5000E 2 ppm set range Selection set high range Selection set low range Selection These commands select the CO full scale ranges according to Table B 6 The example below sets the CO full scale range to 50 ppm Send set range 5 Receive set range 5 ok custom range Table B 6 Standard Ranges Selection ppm ...

Page 274: ...in ppm or mg m3 The example below sets the custom 1 range to 55 5 ppm Send set custom 1 range 55 5 Receive set custom 1 range 55 5 ok range mode This command reports the current range mode Send range mode Receive range mode single set range mode mode This command sets the current range mode to single dual or auto The example below sets the range mode to single Send set range mode single Receive se...

Page 275: ... set span ok gas unit This command reports the current gas units ppm or mg m3 The example reports that the gas unit is set to ppm Send gas unit Receive gas unit ppm set gas unit unit ppm mg m3 This command sets the gas units to ppm or mg m3 The example below sets the gas units to mg m3 Send set gas unit mg m3 Receive set gas unit mg m3 ok pres comp This command reports whether pressure compensatio...

Page 276: ...turns temperature compensation off Send set temp comp off Receive set temp comp off ok Hardware Configuration contrast This command reports the screen s level of contrast The example below shows the screen contrast is 50 according to Table B 7 Send contrast Receive contrast 5 50 set contrast level This command sets the screen s level of contrast according to Table B 7 The example below sets the co...

Page 277: ...ameters to their default values This does not affect the factory calibrated parameters Send set default params Receive set default params ok save set save params This command stores all current parameters in FLASH memory It is important that each time instrument parameters are changed that this command be sent If changes are not saved they will be lost in the event of a power failure The example b...

Page 278: ...ur numbers ranging from 0 255 inclusive separated by Send set addr dns 192 168 1 1 Receive set addr dns 192 168 1 1 ok addr gw This command reports the default TCP IP gateway address Send addr gw Receive addr gw 192 168 1 1 set addr gw address This command sets the default gateway address where address consists of four numbers ranging from 0 255 inclusive separated by Send set addr gw 192 168 1 1 ...

Page 279: ...e serial port RS232 RS485 The example below reports that the current baud rate is 9600 baud Send baud Receive baud 9600 set baud rate rate 1200 2400 4800 9600 19200 38400 57600 115200 This command sets the instrument baud rate The example below sets the instrument s baud rate to 9600 Send set baud 9600 Receive set baud 9600 ok dhcp This command reports the current state of use of DHCP on or off DH...

Page 280: ...format Receive format 00 set format format This command sets the reply termination format where format is set according to Table B 8 The example below sets the reply termination format to checksum Send set format 01 Receive set format 01 ok where xxxx 4 hexadecimal digits that represent the sum of all the characters bytes in the message host name This command reports the host name string Send host...

Page 281: ...and 127 inclusive Note sending this command via RS 232 or RS 485 will require the host to use the new id for subsequent commands Send set instrument id 12 Receive set instrument id 12 ok mode This command reports what operating mode the instrument is in local service or remote The example below shows that the instrument is in the remote mode Send mode Receive mode remote set mode local set mode re...

Page 282: ...e analog iout range 4 2 set analog iout range channel range This command sets analog current output channel to the channel range where channel is between 1 and 6 inclusive and range is set according to Table B 9 The example below sets current output channel 4 to the 0 20 mA range This command responds with feature not enabled if the I O expansion board is not detected Send set analog iout range 4 ...

Page 283: ...digital inputs as a 4 digit hexadecimal string with the most significant bit MSB being input 16 Send dig in Receive dig in 0xff7f din channel This command reports the action assigned to input channel and the corresponding active state The example below reports the input 1 to be assigned an index number 3 corresponding to action of set background mode with the active state being high Send din 1 Rec...

Page 284: ...dtoa channel This reports the outputs of the 6 or 12 Digital to Analog converters according to Table B 11 The example below shows that the D A 1 is 97 7 full scale Send dtoa 1 Receive dtoa 1 97 7 Note All channel ranges are user definable If any customization has been made to the analog output configuration the default selections may not apply Table B 11 Default Output Assignment D to A Function S...

Page 285: ...variables Send list var aout Receive list var aout index variable 0 none 5 s r 8 intt 9 cht 10 auxt 13 pres 14 smplfl 15 intensity 16 motor 17 ain1 18 ain2 19 ain3 20 ain4 21 ain5 22 ain6 23 ain7 24 ain8 25 co relay stat This command reports the current relay logic normally open or normally closed if all the relays are set to same state that is all open or all closed The example below shows that t...

Page 286: ...is sent without an appended relay number then all the relays are assigned the set logic of normally open closed Send set relay open 1 Receive set relay open 1 ok Record Layout Definition The Erec Lrec Srec layouts contain the following A format specifier for parsing ASCII responses A format specifier for parsing binary responses In addition to these the Erec Layout contains A format specifier for ...

Page 287: ...ytes i ignore one 8 bit character 1 byte e parse a 24 bit floating point number 3 bytes n x E parse a 24 bit floating point number 3 bytes N x f parse a 32 bit floating point number 4 bytes c parse an 8 bit signed number 1 byte C parse an 8 bit unsigned number 1 byte n parse a 16 bit signed number 2 bytes N parse a 16 bit unsigned number 2 bytes m parse a 24 bit signed number 3 bytes M parse a 24 ...

Page 288: ... s hexadecimal x decimal d or floating point f or binary b number Typically bitfield extractions are only done for decimal or hexadecimal numbers Floating point numbers can be followed with an optional precision specifier which will be used as an argument to printf s f format e g a field of 4 would be translated into the printf command of 3f Alternately the special character can precede the precis...

Page 289: ...nput format is specified from the B through the subsequent semicolon I Indicates a button which pops up a selection list with input translation That is the values read are translated before they are compared to the selection list options L Indicates a button which pops up a selection list without any translation The output value is number of the selected option T Indicates a button which pops up a...

Page 290: ...o d n This is a line which appears slightly indented the title is again NO and the value the twenty first element of the data response interpreted as a floating point number There is a no translation button which creates a selection list of twelve Code nn options The number of the user selection is used to create the output command Mode 6 12 13x local remote service service 0 1 Tset mode s n This ...

Page 291: ... of a bitfield specification is optional The bitfield will be one bit long starting in this case at the eleventh bit Background 7f 8Bd ddd set o3 bkg s n This shows the use of indirect precision specifiers for floating point displays The background value is taken from the 7th element and the precision specifier is taken from the 8th If the asterisk were not present it would indicate instead that 8...

Page 292: ...C Link Protocol Commands Record Layout Definition B 46 Model 48i Instruction Manual Thermo Electron Corporation ...

Page 293: ...the instrument This is achieved by using the supported MODBUS commands listed below For details of the Model 48i MODBUS Protocol specification see the following topics Serial Communication Parameters on page C 2 describes the parameters used to support MODBUS RTU protocol TCP Communication Parameters on page C 2 describes the parameters used for TCP connection Application Data Unit Definition on p...

Page 294: ...ave address is a single byte in length This is the same as the instrument ID used for C Link commands and can be between 1 and 127 decimal i e 0x01 hex to 0x7F hex This address is only used for MODBUS RTU over serial connections Note Device ID 0 used for broadcast MODBUS commands is not supported Device IDs 128 through 247 i e 0x80 hex to 0xF7 hex are not supported because of limitations imposed b...

Page 295: ... varies depending on the function For more description of these data fields see Function Codes below Error Check In MODBUS over Serial an error check is included in the message This is not necessary in MODBUS over TCP IP because the higher level protocols ensure error free transmission The error check is a two byte 16 bit CRC value Function Codes This section describes the various function codes t...

Page 296: ...lect the state of the actual relays in the instrument as the user may program these outputs for either active closed or open N Quantity of Outputs 8 if the remainder not equal to zero then N N 1 Here is an example of a request and response to read outputs 2 15 Request Function code 1 Byte 0x01 or 0x02 Starting Address 2 Bytes 0x0000 to maximum allowed by instrument Quantity of outputs 2 Bytes 1 to...

Page 297: ... generate the same response These functions read the contents of one or more contiguous registers These registers are 16 bits each and are organized as shown below All of the values are reported as 32 bit IEEE standard 754 floating point format This uses 2 sequential registers least significant 16 bits first The request specifies the starting register address and the number of registers Registers ...

Page 298: ... Register value N x 2 Bytes n N or N 1 Error Response Function code 1 Byte Function code 0x80 Exception code 1 Byte 01 Illegal Function 02 Illegal Address 03 Illegal Data 04 Slave Device Failure Request Field Name Hex Function 0x03 Starting Address Hi 0x00 Starting Address Lo 0x09 No of Registers Hi 0x00 No of Registers Lo 0x04 Response Field Name Hex Function 0x03 Byte Count 0x06 Register value H...

Page 299: ...o be ON A value of 0x0000 requests it to be OFF All other values are illegal and will not affect the output The normal response is an echo of the request returned after the state has been written Here is an example of a request to write Coil 5 ON Request Function code 1 Byte 0x05 Output Address 2 Bytes 0x0000 to maximum allowed by instrument Output Value 2 Bytes 0x0000 or 0xFF00 Response Function ...

Page 300: ...Read Registers for 48i Register Number Variable 40001 40002 CO 40003 40004 LO CO 40005 40006 HI CO 40007 40008 RANGE STATUS 40009 40010 S R 40011 40012 LO S R 40013 40014 HI S R 40015 40016 INT TEMP 40017 40018 BENCH TEMP 40019 40020 AUX TEMP 40021 40022 PERM OVN GAS 40023 40024 PERM OVN HTR 40025 40026 BENCH PRES 40027 40028 SAMPLE FLOW 40029 40030 INTENSITY 40031 40032 MOTOR SPEED 40033 40034 AN...

Page 301: ...il Number Action Triggered 101 ZERO MODE 102 SPAN MODE 103 SET BACKGROUND 104 CAL TO SPAN 105 AOUTS TO ZERO 106 AOUTS TO FS Table C 3 Read Coils for 48i Coil Number Status 1 AUTORANGE 2 LOCAL REMOTE 3 SERVICE 4 UNITS 5 ZERO MODE 6 SPAN MODE 7 SAMPLE MODE 8 GEN ALARM 9 CONC MAX ALARM 10 CONC MIN ALARM 11 INTERNAL TEMP ALARM 12 BENCH TEMP ALARM 13 PRESSURE ALARM 14 SAMPLE FLOW ALARM Table C 1 Read R...

Page 302: ...48i Instruction Manual Thermo Electron Corporation 15 INTENSITY ALARM 16 MOTOR SPEED ALARM 17 BIAS VOLTAGE ALARM 18 MB STATUS ALARM 19 INTERFACE BD STATUS ALARM 20 I O EXP BD STATUS ALARM 21 CONC ALARM Table C 3 Read Coils for 48i Coil Number Status ...

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