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Teledyne API Model 200A NO

X

 Analyzer Instruction Manual, 02246, Rev. F1 

 

Plot the analyzer NO and NO

x

 responses versus the corresponding calculated concentrations to 

obtain the calibration relationships. Determine the straight line of best fit (y = mx + b) 
determined by the method of least squares. 

After the best-fit line has been drawn for the NO and the NO

x

 calibrations, determine whether 

the analyzer response is linear. To be considered linear, no calibration point should differ from 
the best-fit line by more than 2% of full scale.  

7.8.5.3  GPT - NO

2

 Calibration Procedure 

The M200A computes the NO

2

 concentration by subtracting the NO from the NO

x

 concentration. 

Unlike analog instruments, this difference is calculated by the M200A's internal computer 
software. It is extremely unlikely that the NO

2

 concentration will be in error. Therefore this 

procedure is a confirmation that the NO

2

 subtraction algorithm in the computer is operating 

correctly. 

NOTE 

During this procedure do not make any adjustments to the instrument. 

 

1.

 

Generate an NO concentration near 90% of the URL. Dilution air and O

3

 generator air 

flows should be the same as used in the calculation of specified conditions of the dynamic 
parameter according to Section 7.8.4. Sample this NO concentration until the NO and NO

x

 

responses stabilize. Record the NO and NO

x

 concentrations. 

2.

 

Turn on and adjust the O

3

 generator in the calibrator to produce sufficient O

3

 to decrease 

the NO concentration to about 10% of full scale. This will be equivalent to 80% of the URL 
of the NO

2

 channel. After the analyzer responses stabilize, record the resultant NO, NO

x

, and 

NO

2

 concentrations. 

 
MOLY CONVERTER EFFICIENCY 
 
IF THE NO

x

 READING SHOULD DROP TO LESS THAN 96% OF ITS STARTING 

VALUE DURING THIS STEP, IT INDICATES THE MOLY CONVERTER IS IN NEED 
OF TROUBLESHOOTING OR REPLACEMENT. SEE SECTION 7.8.6 FOR FURTHER 
DETAILS. 

3.

 

While maintaining all other conditions, adjust the ozone generator to obtain several other 

concentrations of NO

2

 evenly spaced between the 80% URL point and the zero point. Record 

the NO, NO

x

, and NO

2

 concentrations for each additional point. 

7-24 

Summary of Contents for 200A

Page 1: ...DYNE ADVANCED POLLUTION INSTRUMENTATION T API 9480 CARROLL PARK DRIVE SAN DIEGO CA 92121 5201 TOLL FREE 800 324 5190 FAX 858 657 9816 TEL 858 657 9800 E MAIL api sales teledyne com WEB SITE www teledyne api com 02246 REV F1 Copyright 2005 API Inc 19 August 2005 ...

Page 2: ...f these symbols is described below GENERAL WARNING CAUTION Refer to the instructions for details on the specific danger CAUTION Hot Surface Warning CAUTION Electrical Shock Hazard Technician Symbol All operations marked with this symbol are to be performed by qualified maintenance personnel only Electrical Ground This symbol inside the instrument marks the central safety grounding point for the in...

Page 3: ...2 3 3 WARRANTY 3 3 4 THE M200A NOX ANALYZER 4 1 4 1 PRINCIPLE OF OPERATION 4 1 4 2 OPERATION SUMMARY 4 3 4 2 1 Sensor Module Reaction Cell Detector 4 3 4 2 2 Pneumatic Sensor Board 4 3 4 2 3 Computer Hardware and Software 4 4 4 2 4 V F Board 4 4 4 2 5 Front Panel 4 4 4 2 6 Power Supply Module 4 6 4 2 7 Pump Valves Pneumatic System 4 6 4 2 8 Ozone Generator 4 9 4 2 9 Molydbenum Converter 4 9 5 SOFT...

Page 4: ...6 1 6 1 RACK MOUNT OPTIONS 6 1 6 2 ZERO SPAN VALVES 6 1 6 3 INTERNAL ZERO SPAN IZS 6 3 6 4 AUTOCAL SETUP OF IZS AND ZERO SPAN VALVES 6 3 6 5 PERMEATION TUBE 6 5 6 6 4 20 MA CURRENT LOOP OUTPUT 6 8 7 CALIBRATION AND ZERO SPAN CHECKS 7 1 7 1 MANUAL ZERO SPAN CHECK OR CAL WITH ZERO SPAN GAS IN THE SAMPLE PORT 7 4 7 2 MANUAL ZERO SPAN CHECK OR CALIBRATION WITH ZERO SPAN VALVES OPTION 7 6 7 3 MANUAL ZE...

Page 5: ...TION CELL 8 9 8 8 PNEUMATIC LINE INSPECTION 8 11 8 9 LEAK CHECK PROCEDURE 8 15 8 10 LIGHT LEAK CHECK PROCEDURE 8 16 8 11 PROM REPLACEMENT PROCEDURE 8 16 9 TROUBLESHOOTING ADJUSTMENTS 9 1 9 1 OPERATION VERIFICATION M200A DIAGNOSTIC TECHNIQUES 9 3 9 1 1 Fault Diagnosis with TEST Variables 9 3 9 1 2 Fault Diagnosis with WARNING Messages 9 8 9 1 3 Fault Diagnosis Using DIAGNOSTIC Mode 9 11 9 1 4 M200A...

Page 6: ...requency V F Board 9 41 9 3 4 Status Temp Board 9 47 9 3 5 Power Supply Module 9 49 9 3 6 Ozone Generator 9 54 9 3 7 Flow Pressure Sensor 9 57 9 3 8 NOx Sensor Module 9 62 9 3 9 Z S Valves IZS Permeation Tube Oven 9 66 9 3 10 Pneumatic System 9 67 10 M200A SPARE PARTS LIST 10 1 APPENDIX A ELECTRICAL SCHEMATICS A 1 vi ...

Page 7: ...THE PARTICULATE FILTER 8 4 CAUTION 8 7 FIGURE 8 2 MOLYBDENUM CONVERTER ASSEMBLY 8 8 FIGURE 8 3 REACTION CELL ASSEMBLY 8 10 FIGURE 8 4 PNEUMATIC DIAGRAM STANDARD CONFIGURATION 8 12 FIGURE 8 5 PNEUMATIC DIAGRAM WITH ZERO SPAN VALVE OPTION 8 13 FIGURE 8 6 PNEUMATIC DIAGRAM WITH IZS OPTION 8 14 FIGURE 9 1 SPAN CALIBRATION VOLTAGE 9 25 FIGURE 9 2 CPU BOARD JUMPER SETTINGS 9 36 FIGURE 9 3 RS 232 PIN ASS...

Page 8: ...ES 5 33 TABLE 5 17 RS 232 CALIBRATION COMMANDS 5 34 TABLE 5 18 RS 232 CALIBRATION EXAMPLES 5 35 TABLE 5 19 RS 232 CALIBRATION MESSAGES 5 36 TABLE 5 20 RS 232 DIAGNOSTIC COMMAND SUMMARY 5 37 TABLE 6 1 ZERO SPAN VALVE OPERATION 6 2 TABLE 6 2 IZS SEQUENCE MODES 6 3 TABLE 6 3 IZS SEQUENCE ATTRIBUTES 6 4 TABLE 6 4 IZS SEQUENCE EXAMPLE 6 4 TABLE 6 5 EXAMPLE OF AUTOCAL SETUP 6 5 TABLE 7 1 TYPES OF ZERO S...

Page 9: ... TABLE 9 4 DIAGNOSTIC MODE SIGNAL I O CONTINUED 9 15 TABLE 9 4 DIAGNOSTIC MODE SIGNAL I O CONTINUED 9 16 TABLE 9 5 MODEL 200A INTERNAL VARIABLES 9 20 TABLE 9 6 TEST CHANNEL READINGS 9 21 TABLE 9 6 TEST CHANNEL READINGS CONTINUED 9 22 TABLE 9 7 MOTHERBOARD JUMPER SETTINGS 9 43 TABLE 9 8 V F BOARD SWITCH SETTINGS 9 44 TABLE 9 9 POWER SUPPLY MODULE SUBASSEMBLIES 9 50 TABLE 9 10 POWER SUPPLY MODULE LE...

Page 10: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 INTENTIONALLY BLANK x ...

Page 11: ...shoot problems to assure maximum reliability and data integrity To address these needs we have created three indexes to the information inside They are Table of Contents Outlines the contents of the manual in the order the information is presented This is a good overview of the topics covered in the manual There is also a list of Tables and a list of Figures Index to M200A Front Panel Menus The Me...

Page 12: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 INTENTIONALLY BLANK 1 2 ...

Page 13: ...nstrument for compatability with the local power before plugging in the M200A 2 2 Electrical and Pneumatic Connections 1 Refer to Figure 2 2 to locate the rear panel electrical and pneumatic connections 2 Attach the pump to the Exhaust Out port on the rear panel as shown in Figure 2 3 3 If you are connecting to a calibrator attach a vented sample inlet line to the sample inlet port The pressure of...

Page 14: ...HAZARD Do not use charcoal treated with halogen compounds use only Teledyne API P N 00596 charcoal Wait at least 5 minutes after turning off pump before removing ozone scrubber WARNING WARNING Lethal voltages present inside case Do not operate with cover off during normal operation Before operation check for correct input voltage and frequency Do not operate without proper chassis grounding Do not...

Page 15: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 1 Removal of Shipping Screws Check for Correct Power 2 3 ...

Page 16: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 2 Rear Panel 2 4 ...

Page 17: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 3 Inlet and Exhaust Venting 2 5 ...

Page 18: ... 1 to those in the display Remember that as the instrument warms up the values may not have reached their final values yet If you would like to know more about the meaning and utility of each TEST function refer to Table 9 1 Also now is a good time to verify that the instrument was shipped with the options you ordered Table 2 1 includes a list of options Section 6 covers setting up the options 6 E...

Page 19: ...Ox span concentration value by pressing the key under each digit until the expected value is set 2 Press ENTR ENTR stores the expected NOx span value This value will be used in the internal formulas to compute subsequent NOx concentration values 3 Press CAL CONC NO In the same CAL CONC sub menu press the NO button and enter the expected NO span value then ENTR As before this value will be used in ...

Page 20: ...calculation equations and zeroes the instrument 6 Input Span Gas Switch gas streams to span gas 7 Wait 10 min Wait for reading to stabilize at the span value If you wait less than 10 minutes the final span value may drift 8 Press SPAN The SPAN button should be displayed If it is not check the Troubleshooting Section 9 2 8 for instructions on how to proceed In certain circumstances at low span gas ...

Page 21: ...s not in this range check Section 7 10 or 9 If the SLOPE is in the acceptable range the instrument will perform optimally NOTE The NO and NOx slopes should be equal within 0 1 3 Scroll the TEST function menu until the NOx OFFSET is displayed The M200A will display the OFFSET parameter for the NOx equation This number should be near zero A value of 0 0 150 mV indicates calibration in the optimal ra...

Page 22: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 4 Front Panel 2 10 ...

Page 23: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 2 5 Assembly Layout 2 11 ...

Page 24: ...le 9 1 AZERO mV 20 150 Table 9 1 HVPS V 450 900 constant 9 3 8 5 DCPS mV 2500 200 9 3 5 9 3 4 RCELL TEMP o C 50 1 9 3 8 2 BOX TEMP o C 8 48 9 3 4 1 PMT TEMP o C 7 1 9 3 8 4 IZS TEMP o C 50 0 4 9 3 9 MOLY TEMP o C 315 5 9 3 4 1 RCEL PRES IN Hg A 4 10 constant 9 3 7 SAMP PRES IN Hg A 25 30 constant 9 3 7 Electric Test Optic Test Electric Test PMT Volts mV 2000 500 9 1 3 2 NO Conc PPB 1000 250 9 1 3 ...

Page 25: ...pan gas Table 9 1 Measured Flows Sample Flow cc min 500 50 9 3 7 Figure 9 8 Ozone Flow cc min 60 90 9 3 7 Figure 9 8 IZS Purge Flow cc min 60 15 6 3 Factory Installed Options Option Installed Power Voltage Frequency Rack Mount w Slides Rack Mount w Ears Only Rack Mount External Pump w Slides Rack Mount External Pump w o Slides Stainless Zero Span Valves Internal Zero Span IZS Permeation Tube Outpu...

Page 26: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 INTENTIONALLY BLANK 2 14 ...

Page 27: ...ns HxWxD 7 x 17 x 23 6 18cm x 43cm x 61cm Weight Analyzer 43 lbs 20 kg w external pump Weight Analyzer 55 lbs 25 kg w internal pump Weight Ext Pump Pack 16 lbs 7 kg Weight Internal Pump 5 lbs 2 kg Power Analyzer 100 V 50 60 Hz 120V 60 Hz 220 V 50 Hz 240 V 50 Hz 125 watts Power Analyzer5 230 V 50 Hz 2 5A peak Power Ext Pump 110 V 60 Hz 220V 50 Hz 240V 50Hz 295 watts Power Ext Pump5 230 V 50 Hz 2 5A...

Page 28: ...ure 2 slpm or better 7 Software settings A Dynamic span OFF B Dynamic zero OFF C Cal on NO2 OFF D Dilution factor OFF E AutoCal ON or OFF F Independent range ON or OFF G Autorange ON or OFF H Temp Pres compensation ON I Converter Eff Acceptable values of 0 96 to 1 02 Under the designation the Analyzer may be operated with or without the following options 1 Rack mount with slides 2 Rack mount witho...

Page 29: ... of one year from the date of delivery All replacement parts and repairs are warranted for 90 days after the purchase If a Product fails to conform to its specifications within the warranty period Teledyne API shall correct such defect by in Teledyne API s discretion repairing or replacing such defective Product or refunding the purchase price of such Product The warranties set forth in this secti...

Page 30: ...2246 Rev F1 TERMS AND CONDITIONS All units or components returned to Teledyne API should be properly packed for handling and returned freight prepaid to the nearest designated Service Center After the repair the equipment will be returned freight prepaid 3 4 ...

Page 31: ... containing heated molybdenum to reduce any NO2 present to NO by the following reaction 315o C 3 2 MoO NO 3 Mo NO 3 The Analyzer now measures the total NOx concentration The NOx and NO values are subtracted from each other by the built in computer yielding the NO2 concentration The three results NO NOx and NO2 are then further processed and stored by the computer yielding several instantaneous and...

Page 32: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 4 1 Block Diagram 4 2 ...

Page 33: ...nsor measures the pressure in the reaction cell which is maintained at about one quarter of atmospheric pressure The second pressure sensor measures the pressure just upstream of the reaction cell which is near ambient pressure From these two pressures the sample flow rate can be computed and is displayed as sample flow in the TEST menu Finally a solid state flow meter measures the ozone flow dire...

Page 34: ... sections ROM memory contains the multi tasking operating system code plus the instructions that run the instrument The RAM memory is used to hold temporary variables and current concentration data The EEPROM memory contains the instrument set up variables such as range and instrument ID number The EEPROM data is non volatile so the instrument can lose power and the current set up information is p...

Page 35: ...r that the value keyed in was not accepted The original value remains unchanged 4 2 5 2 Status LED s At the right of the display there are 3 status LED s They can be in three states OFF ON and Blinking The meanings of the LED s are given in Table 4 1 Table 4 1 Front Panel Status LED s LED State Meaning Green On Off Blinking Monitoring normally taking DAS data NOT monitoring DAS disabled Monitoring...

Page 36: ... the external pump is selected This option is not available with the internal pump The external Pump Pack includes a vacuum pump and optional charcoal NO2 scrubber By using this pump it is possible to remove a significant source of acoustic noise and vibration from the immediate area of the analyzer The pump pack is supplied with 0 25 tube fitting to connect to the exhaust fitting on the M200A rea...

Page 37: ...ding of 25 of mercury Hg at sea level which would give an absolute pressure of about 5 Hg in the reaction cell would read only 20 Hg at high altitude sites Therefore in this manual the vacuum specification of 5 Hg pressure is given as an absolute pressure 5 Hg A reference against zero absolute pressure a perfect vacuum thus removing ambiguities for high altitude sites 4 7 ...

Page 38: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 4 2 External Pump Pack 4 8 ...

Page 39: ...exhaust side of the membrane is connected to the vacuum manifold at the rear of the instrument Normal room air contains enough water vapor to damage the generator and components downstream To prevent damage the generator will be turned ON after 30 min following a cold start Otherwise the starting of the generator will follow the table below Table 4 2 Ozone Generator Start up Timing Ozone Gen State...

Page 40: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 INTENTIONALLY BLANK 4 10 ...

Page 41: ...ems indicate a need for diagnostics the SETUP menu is used The SETUP menu is diagrammed in Figure 5 2 5 1 Index To Front Panel Menus The next several pages contain two different styles of indexes that will allow you to navigate the M200A software menus The first two pages show a tree menu structure to let you see at a glance where each software feature is located in the menu The second menu contai...

Page 42: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 5 1 Sample Menu Tree 5 2 ...

Page 43: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 5 2 Setup Menu Tree 5 3 ...

Page 44: ...zero analyzer 5 2 2 2 7 1 7 2 SPAN Press SPAN then ENTR will span analyzer 5 2 2 3 7 1 7 2 CONC Expected NO NOx span concentrations and Moly conv efficiency setup Table 7 3 NOX CONC Enter expected NOx span concentration 5 2 2 Table 7 3 NO CONC Enter expected NO span concentration 5 2 2 Table 7 3 CONV Sub menu for converter efficiency setup and verification 5 2 2 6 7 8 6 NO2 Expected NO2 concentrat...

Page 45: ...e 1 2 or 3 5 3 2 6 4 MODE Selects mode of calibration zero span zero span plus disable 5 3 2 6 4 SET For a given Sequence and Mode sets timing and calibration attributes 5 3 2 6 4 DAS Data Acquisition System DAS keeps 1 to 1500 minute averages of data 5 3 3 VIEW Select which DAS data collector to view 5 3 3 PREV NEXT Scroll through data collectors CONC PNUMTC CAL DAT The DAS data structure can be ...

Page 46: ...nge if Autorange enabled 5 3 4 2 HI Sets high range if Autorange enabled 5 3 4 2 UNITS Unit selection menu 5 3 4 5 PPB PPM UGM MGM Select units that instrument uses 5 3 4 5 DIL Enter dilution factor if connected to stack dilution probe 5 3 4 4 PASS Password enable disable menu 5 3 5 ON OFF Enable disable password checking 5 3 5 CLOCK TIME Adjusts time on the internal time of day clock 5 3 6 DATE A...

Page 47: ...ow editing of the selected variable 5 3 9 9 2 DIAG Diagnostic menu 5 3 7 9 PREV NEXT PREV NEXT scroll up and down through the DIAG menu 5 3 7 9 SIG I O Examines changes analog and digital internal signals 9 1 3 1 ANALOG OUT Writes test voltages to analog outputs 9 1 3 5 D A CAL Calibrates analog outputs 9 1 3 6 OPTIC TEST Activates Optic Test feature 9 1 3 3 ELEC TEST Activates Electric Test featu...

Page 48: ... functions if a value of XXXX is displayed that indicates an off scale and therefore meaningless reading To use the TEST functions to diagnose instrument faults refer to Troubleshooting Section 9 1 Range The M200A can operate in one of three range modes 1 In single range mode there is one range for all 3 outputs This is the default range mode 2 Independent range mode allows different ranges for ea...

Page 49: ...by a solid state flow meter Variations in this value indicate variations in ozone flow The nominal value for ozone flow is 60 90 cc min PMT Voltage The PMT VOLTAGE shows the PMT signal at the output of the preamp board The waveform of the PMT voltage can be complex and vary from near 0 mV when zero gas is in the reaction cell to 5000 mV when a high concentration of NOx is being measured If the PMT...

Page 50: ...ows the temperature inside the chassis of the M200A The temperature sensor is located on the Status Temp Board Typically it runs 2 to 10 C higher than the ambient temperature The M200A has been engineered to maintain stable output over 5 to 40 C ambient temperature range PMT Temperature The temperature of the PMT is closely controlled by a dedicated proportional temperature controller The nominal ...

Page 51: ...ressure to change Nominal values are 3 to 10 in Hg A Typical readings are about 5 in Hg A for the external pump and about 8 in Hg A or better for the internal pump Sample Pressure The pressure in the sample inlet line is measured by a solid state pressure sensor which measures absolute pressure Absolute pressure was chosen because it is an unambiguous measure of sample pressure This pressure typic...

Page 52: ... be zeroed The instrument will not however allow a zero cal on any signal level therefore it is not possible to zero the instrument with span gas in the reaction cell If the ZERO key does not come on as expected check Section 9 2 9 5 2 2 3 Span Pressing the SPAN key along with ENTR will cause the instrument to adjust the SLOPE value of the internal formula so the instrument displays the span value...

Page 53: ...ent allowed for either term and there are consequences of having the values near the high or low limits of their respective ranges The x term is the conditioned PMT signal PMT signal is adjusted for the AutoZero background range temperature and pressure The offset b term is the total background light with the AutoZero term subtracted out The AutoZero term measures detector dark current amplifier n...

Page 54: ...pan Valve or IZS option to periodically check its calibration Information on setting up AutoCal is in Section 6 4 5 3 3 Data Acquisition System DAS The M200A contains a flexible and powerful built in data acquisition system DAS that enables the analyzer to store concentration data as well as diagnostic parameters in its battery backed memory This information can be viewed from the front panel or p...

Page 55: ...during calibration and calibration hold off are not included in the data The last 800 hourly averages are stored PNUMTC Collects sample flow and sample pressure data at five minute intervals and stores an average once a day with a time and date stamp This data is useful for monitoring the condition of the pump and critical flow orifice sample flow and the sample filter clogging indicated by a drop...

Page 56: ...the rear panel of the instrument If the range you select is between 50 and 2000 ppb the front panel will read the concentration anywhere from 0 to 2000 ppb regardless of the range selected If the range selected is from 2001 to 20 000 ppb the front panel will read from 0 to 20 000 ppb The apparently wider range of front panel readouts is because the M200A has 2 internal hardware ranges namely 0 200...

Page 57: ... RNGE MODE AUTO then press ENTR To set the values press SETUP RNGE SET The M200A will prompt you for LO then HI which is the lower and upper ranges of Auto Range Key in the values desired then press ENTR 5 3 4 3 Independent Ranges Independent Ranges allows you to select different ranges for NO NOx and NO2 To set up Independent Ranges press SETUP RNGE MODE IND then press ENTR To set the values pres...

Page 58: ...000 Press ENTR and EXIT to return to upper level menus A value of 1 disables the dilution feature 3 SELECT RANGE The range selection is the same with dilution as with normal monitoring See Section 5 3 4 for information on range selection You should note however the value entered should be the actual concentration of the calibration gas entering the dilution probe The units of this number is ppm 4 ...

Page 59: ...the unit re calibrated using one of the methods in Section 7 Changing units affects all of the RS 232 values all of the display values and all of the calibration values Example If the current units are in ppb and the NO span value is 400 ppb and the units are changed to ug m3 A new value must be entered for the expected span concentration 5 3 4 6 Recorder Offset If necessary the analog outputs can...

Page 60: ... the speed of the clock can be adjusted by selecting the CLOCK_ADJ variable in the SETUP MORE VARS menu The units of CLOCK_ADJ are seconds per day The M200A software and hardware has been designed and tested to operate properly during the year 2000 calendar rollover 5 3 7 Diagnostic Mode The M200A Diagnostic Mode allows additional tests and calibrations of the instrument These features are separat...

Page 61: ... The VARS Table 9 5 is located in the Troubleshooting Section 9 1 4 5 3 10 M200A Operating Modes The M200A has 2 main operating modes which were discussed in earlier in this section namely SAMPLE and SETUP modes In addition there are other modes of operation when the instrument is being diagnosed or calibrated A list of M200A operating modes is given in Table 5 7 5 21 ...

Page 62: ... diagnostic test DIAG AOUT D A output diagnostic test DIAG Main diagnostic menu DIAG I O Signal I O diagnostic DIAG RS232 RS232 output diagnostic SETUP x x Setup mode x x is software version SAMPLE ZS Sampling automatic dynamic zero and span calibration enabled SAMPLE Z Sampling automatic dynamic zero calibration enabled SAMPLE S Sampling automatic dynamic span calibration enabled SAMPLE A Samplin...

Page 63: ...e RS 232 communications protocol allows the instrument to be connected to a wide variety of computer based equipment The interface provides two basic functions in the M200A 1 First is a comprehensive command interface for operating and diagnosing the analyzer in interactive fashion This mode is for use by a human operator issuing commands to the instrument 2 Second is the equivalent command interf...

Page 64: ...to easily re configure the analyzer from DCE to DTE if necessary In addition the front panel diagnostics allow test data streams to be sent out of the port on command This flexibility and diagnostic capability should simplify attaching our equipment to other computers or printers If problems occur see the Troubleshooting Section 9 3 2 Setup from the Front Panel There are 2 additional RS 232 setups...

Page 65: ...el RS 232 menus are desired the value entered would be 4 8 12 Port Communication The RS 232 can be set up in interactive or computer mode of communication If the port is attached to a computer running an instrument interface program it needs to have different characteristics than if used interactively by a human operator When an operator is communicating with the analyzer via a terminal the analyz...

Page 66: ...aracters will not be sent to the analyzer Check your communications program owners manual Entering Commands in Terminal Mode In terminal mode all commands must be terminated by a carriage return commands are not processed until a carriage return is entered While entering a command you may use the following editing keys Table 5 11 RS 232 Terminal Mode Editing Keys Key Function CR carriage return Ex...

Page 67: ...t logins even with the correct password to be disabled for 1 hour 4 If not logged on the only command that is active is the 5 The following messages will be given at logon LOG ON SUCCESSFUL Correct password given LOG ON FAILED Password not given or incorrect LOG OFF SUCCESSFUL Logged off The RS 232 LOGON feature must be enabled from the front panel by setting bit 4 See Table 6 4 Once the feature i...

Page 68: ...n errors involving the computation of parity Enable Command prompt Setting this bit causes instrument to issue a command prompt after each command output Useful when operating in Terminal Mode 5 5 2 Command Summary The information contained in the rest of this section covers commonly used commands that are required to operate the instrument from a remote terminal If you are going to be writing com...

Page 69: ...s name diagnostic test D id EXIT Exits diagnostic mode D id RESET Resets analyzer same as power on D id RESET RAM System reset plus erases RAM Initializes DAS NO NOx NO2 conc readings calib not affected D id RESET EEPROM System reset plus erases EEPROM RESET RAM actions setup variables calibration to default values Restores all factory defaults D id PRINT Prints properties for all data channels DA...

Page 70: ...for the RS 232 interface You can effectively disable the asynchronous reporting feature by setting the interface to quiet mode All messages output from the analyzer including those output in response to a command line request have the format X DDD HH MM IIII MESSAGE X is a character indicating the message type as shown in the Table 5 14 DDD HH MM is a time stamp indicating the day of year DDD as a...

Page 71: ...gnostic T Test measurement V Variable W Warning There are 5 different types of messages output by the M200A The meanings of the various messages are discussed elsewhere in the manual The TEST DIAGNOSTIC and WARNING messages are discussed in Section 9 1 9 2 9 3 DAS and VARIABLES are discussed in Section 5 3 3 and 5 3 9 CALIBRATE is discussed in Section 7 5 31 ...

Page 72: ...xx MV DC power supply RCELLTEMP RCELL TEMP xxx C Reaction cell temperature BOXTEMP BOX TEMP xxx C Internal box temperature PMTTEMP PMT TEMP xxx C PMT temperature IZSTEMP IZS TEMP xxxx C IZS temperature CONVTEMP MOLY TEMP xxx C Molycon temperature RCELLPRESS RCEL xxx x IN HG A Rx cell pressure SAMPPRESS SAMP xxx x IN HG A Sample pressure NOXSLOPE NOX SLOPE xxxxx NOx slope parameter NOXOFFSET NOX OF...

Page 73: ...ow out of spec WOZONEFLOW OZONE FLOW WARNING Ozone flow out of spec WRCELLPRESS RCELL PRESS WARN Rx cell pressure out of spec WBOXTEMP BOX TEMP WARNING Box temp out of spec WRCELLTEMP RCELL TEMP WARNING Reaction cell temp out of spec WIZSTMP IZS TEMP WARNING IZS temp out of spec WCONVTEMP MOLY TEMP WARNING Molycon temp out of spec WPMTTEMP PMT TEMP WARNING Molycon temp out of spec WAUTOZERO AZERO ...

Page 74: ...FLOW 5 5 5 CALIBRATION Commands and Messages There are several methods of both checking the calibration and calibrating the M200A these are discussed in Section 7 The C command executes a calibration command which may be one of the following Table 5 17 RS 232 Calibration Commands Command Description C id ZERO 1 or 2 Start remote zero calibration The number is optional and selects the range to cali...

Page 75: ...brated if DYN CAL is enabled Zero Calibration C ZERO C EXIT Z S valves switched to admit zero gas Instrument zero is just checked but not changed Execute AutoCal Sequence 2 C ASEQ 2 Execute a predefined AutoCal Sequence Executes sequence immediately ignoring time and date parameters Span Calibration Check C SPAN C EXIT Z S valves switched to admit span gas Instrument span is just checked but not c...

Page 76: ...BRATION Beginning multi point calibration NOX1 xxxxx PPB2 NO1 xxxxx PPB2 NO21 xxxxx PPB2 FINISH MULTI POINT CALIBRATION Finished multi point calibration 1 Depends on software options installed 2 Depends on which units are currently selected 5 5 6 DIAGNOSTIC Commands and Messages When Diagnostic mode is entered from the RS 232 port the diagnostic mode issues additional status messages to indicate w...

Page 77: ...ts analyzer software same as power on D id RESET RAM Resets analyzer software and erases RAM Erases NO NOx NO2 conc values Keeps setup variables and calibration same as installing new software version D id RESET EEPROM Resets analyzer software and erases RAM and EEPROM Returns all setup variables to factory defaults resets calibration AutoZero values 5 5 7 DAS Commands and Message The M200A contai...

Page 78: ...rty is turned on the Data Channel will issue a report with a time and date stamp to the RS 232 port every time a data point is logged The report format is shown below D 94 08 00 0200 CONC AVG NXCNC1 1234 5 PPB D 94 08 00 0200 CONC AVG NOCNC1 1234 5 PPB D 94 08 00 0200 CONC AVG N2CNC1 1234 5 PPB One CONC report consists of D Type of report Diagnostic 94 08 00 Time and Date stamp Julian day Hr Min 0...

Page 79: ... panel The following table uses the example of Automatic Reporting Other attributes can be edited in a similar fashion 5 5 8 Internal Variables A list of M200A variables is shown in Table 9 5 A list of variables and their settings can be requested over the RS 232 port by V LIST Lists internal variables and values The output from this command is long and will not be shown here The general format of...

Page 80: ... changing the settings on a variable is V name value warn_lo warn_hi For example to change the warning limits on the box temperature type V BOX_SET 30 10 50 and the CPU should respond with V DDD HH MM IIII BOX_SET 30 10 50 0 to 60 The CONFIG command lists the software configuration To show the software configuration type V CONFIG In addition to SAMPLE and SETUP modes the M200A has a number of addi...

Page 81: ... Mount Options Rack Mount permits the Analyzer to be mounted in a standard 19 wide x 24 deep RETMA rack 1 Rack mount with slides 2 Rack mount without slides The external pump can be ordered in the following configurations 1 External pump pack standard configuration 2 Pump pack with rack mount tray to enable slide out servicing 3 Pump pack with rack mount fixed tray 6 2 Zero Span Valves The Zero Sp...

Page 82: ... the analyzer 2 Zero mode The sample cal valve is energized to the cal mode The zero span valve is de energized in the zero mode thus allowing zero gas to be admitted through the rear panel bulkhead fitting into the analyzer 3 Span mode The sample cal valve is energized and in the cal mode The zero span valve is energized in the span mode With both valves on span gas is admitted through a rear pan...

Page 83: ...tional details A continuous purge flow of approximately 60 cc min is drawn across the permeation tube to prevent span gas accumulation when the permeation tube is not in use If the instrument is going to be turned off for more than 8 hours the permeation tube must be removed from the oven The perm tube continues to release gas even while at room temp thus causing high concentrations of NO2 gas to ...

Page 84: ...umber of hours later each Delta Days Seq is to be run 6 Duration Number of minutes the sequence operates 7 Calibrate Calibrate the instrument at end of sequence Example of enabling sequence 2 Do a span check hour later every other day lasting 15 minutes without calibration Table 6 4 IZS Sequence Example Mode and Attribute Value Comment Sequence 2 Define Seq 2 Mode 4 Select Span Mode Timer Enable O...

Page 85: ...ube consists of a small container of NO2 liquid with a small window of PTFE which is permeable to NO2 see Figure 6 1 The gas slowly permeates through the window at a rate in the nanogram min range If the tube is kept at constant temperature usually about 50 C the device will provide a stable source of NO2 gas for a year or more See below for permeation tube ordering information The NO2 concentrati...

Page 86: ... and 51o C There is a 60 cc min flow across the permeation tube at all times to prevent build up of NO2 gas in the tubing If desired the output of the permeation tube can be adjusted by adjusting the oven temperature up or down slightly The adjust increment is 0 1o C to facilitate small adjustments of the setpoint temperature WARNING Do not leave instrument turned off for more than 8 hours without...

Page 87: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 6 1 IZS Option Permeation Tube Installation 6 7 ...

Page 88: ...permeation tube have stabilized the response to the permeation tube is not expected to change more than 5 If during a periodic span check the response varies by more than 5 or more importantly shows drift then there may be a problem with the Analyzer or permeation tube see Section 9 3 9 Suggested permeation tubes NO2 Permeation tube uncertified 0 4ppm 0 5 lpm NO2 Permeation tube certified 0 4ppm 0...

Page 89: ...r NO only NO2 only or a mixture of NO and NO2 GPT Zero air used for all calibration procedures including GPT should have 1 ppb NO or NO2 less than 1 ppb of major interferents such as SO2 and NH3 and a dew point of 5o C or less The calibration gasses should be from a reliable supplier since the quality of the tank concentration values ultimately determines the accuracy of the analyzer EPA protocol ...

Page 90: ...ic Z S Calibration with Z S Valves or IZS Option Operates Z S valves or IZS once per day and adjusts calibration 7 6 Calibrate using NO2 Permeation Tube Allows calibration using NO2 gas from the IZS permeation tube 7 7 Use of Z S Valves or IZS with Remote Contact Closure Operates Z S valves or IZS with rear panel contact closures Without valves or IZS can be used to switch instrument into zero or ...

Page 91: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 7 1 Calibration Setup 7 3 ...

Page 92: ...le 7 2 details the zero calibrate procedure with zero gas coming in through the sample port Table 7 2 Manual Zero Calibration Procedure Zero Gas Thru Sample Port Step Number Action Comment 1 Press CAL The M200A enters the calibrate mode from sample mode The zero gas must come in through the sample port 2 Wait 10 min Wait for reading to stabilize at zero value 3 Press ZERO If you change your mind a...

Page 93: ...T Returns instrument to SAMPLE mode If desired compensation for moly converter efficiency CE can be included in the NOx concentration calculation The CE must be entered prior to calibration Refer to Section 7 8 6 for the CE procedure Table 7 4 Manual Span Calibration Procedure Span Gas thru Sample Port Step Number Action Comment 1 Press CAL The M200A enters the calibrate mode NO span gas should be...

Page 94: ...out zeroing the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations forcing the reading to zero 5 Press EXIT M200A returns to sample mode Immediately after calibration readings do not go into the DAS averages Refer to Table 7 3 to enter expected NO and NOx values Table 7 6 Manual Span Calibration Procedure Z S Valves Step Number Action Comment 1 Press CALS The M200A en...

Page 95: ...This procedure does not change the zero calibration of the instrument To do a manual NO2 check press CALS then wait about 10 minutes for the NO2 reading to stabilize The concentration value in the display and analog output is the span value Press EXIT to return to SAMPLE mode This procedure does not change the span calibration of the instrument 7 4 Automatic Zero Span Check In a typical air monito...

Page 96: ...libration using the NO2 permeation tube as a calibration gas source the NO channel concentration will be zero due to the lack of NO in the NO2 permeation tube An error message will be displayed CANNOT CALIBRATE We recommend a calibrated NO tank for complete calibration Also see the CAL ON NO2 option With dynamic calibration turned on the instrument will re set the slope and offset values for the N...

Page 97: ...s are reported correctly See Table 7 8 to enable this feature If CAL ON NO2 is enabled and you do a SPAN CHECK or SPAN CAL the NO2 concen will be reported as ZERO This is because all of the NO2 gas is being routed through the molybdenum converter during both the NO and NOx portions of the measurement cycle Th the instrument sees the SAME concen 2 As long as CAL ON NO2 is enabled the instrument wil...

Page 98: ... 3 Scroll the VARS menu to select the CAL ON NO2 variable By pressing NEXT or PREV 4 Press EDIT Once you have entered EDIT set the value to ON 5 Press ENTR ENTR will enable the CAL ON NO2 feature 6 Press EXIT Each EXIT press returns the M200A to the next higher menu level The highest level is the SAMPLE mode Once CAL ON NO2 is enabled the procedure for zeroing and spanning the instrument is identi...

Page 99: ...If Dynamic Zero Span is enabled the calibration is adjusted at the end of the zero or span time otherwise zero or span is just checked not adjusted In order to do another remote check both contact closures should be held open for at least 1 second then may be set again Table 7 9 shows what type of check is performed based on the settings of the two contact closures Table 7 9 IZS or Z S Valves Mode...

Page 100: ...238 7 8 1 Calibration of Equipment In general calibration is the process of adjusting the gain and offset of the M200A against some recognized standard The reliability and usefulness of all data derived from any analyzer depends primarily upon its state of calibration In this section the term dynamic calibration is used to express a multipoint check against known standards and involves introducing...

Page 101: ...lyzed against NIST SRM see protocol in Section 2 0 7 Q A Handbook Obtain new working standard and check for traceability Recording forms Develop standard forms N A Revise forms as appropriate Audit equipment Must not be the same as used for calibration System must be checked out against known standards Loacte problem and correct or return to supplier Calibrations should be carried out at the field...

Page 102: ...Multi point calibration GPT 1 tR 2 minutes PR 2 75 ppm min 2 Use calibration procedure in Subsec 2 4 Q A Handbook also TAD2 and Federal Register 3 Converter efficiency 96 Method 1 Subsec 8 4 2 this manual 2 Subsec 8 5 this manual TAD2 Federal Register and Figure 8 1 see Subsec 8 2 for frequency 3 Subsec 8 6 this manual and Figure 8 4 and Figure 8 5 1 Adjust flow conditions and or reaction chamber ...

Page 103: ...is from the supplier of the NO calibration gas Generally the maximum NO2 impurity that should be allowed is 1 of the NO concentration The NO2 impurity in the NO standard can be measured by the M200A A procedure is given in the TAD for NO2 measurement 7 8 2 3 Use of NO2 Permeation Tubes As Standards The steps required to compare the concentration of a commercial working calibration standard to an N...

Page 104: ...rying amounts of O3 from a stable O3 generator All zero air used in this procedure should conform to the requirements stated in Section 7 Dynamic calibration systems based on this principle are commercially available or may be assembled by the user A recommended calibration system is described in the Federal Register1 and detailed in TAD 2 7 8 4 2 GPT Calibrator Check Procedure It has been determi...

Page 105: ... is to be calibrated at the same time multiply FT by the number of analyzers 4 Calculate the NO concentration NO OUT needed to approximate 90 of the URL of the NO2 analyzer to be calibrated using Equation 7 2 NO OUT URL of analyzer ppm x 90 100 Equation 7 2 5 Calculate the NO flow FNO required to generate the NO concentration NO OUT using Equation 7 3 NO STD F F T NO Equation 7 3 6 Calculate the r...

Page 106: ...he reaction chamber VRC and the concentration of the NO standard NO STD are known All flow settings FNO FO FT and FD will be calculated In many uses these flow settings are known and need only to be substituted in Equations 7 5 and 7 6 to verify the required conditions Before doing any calculations the URL and flow demand of the analyzer being calibrated must be known Operating parameters are dete...

Page 107: ...pm 45 0 F 3 3 NO 4 Calculate the required flow rate through ozone generator FO using Equation 7 4 O 3 3 3 F 50 5 ppm x 24 5cm x 180 cm 2 75 ppm 24 5cm min min min 80984 cm 24 5 cm 260 cm 6 2 3 3 min min min 5 Verify that the residence time tR in the reaction chamber is 2 min using Equation 7 5 min 63 0 min cm 260 cm 180 t 3 3 R min cm 5 24 3 6 Verify the dynamic parameter specification PR of the c...

Page 108: ...tion During the calibration the M200A should be operating in its normal sampling mode and the test atmosphere should pass through all filters scrubbers conditioners and other components used during normal ambient sampling and as much of the ambient air inlet system as is practicable All operational adjustments to the M200A should be completed prior to the calibration The following software feature...

Page 109: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 7 2 Diagram of GPT Calibration System 7 21 ...

Page 110: ...alculation equations 5 Press EXIT M200A returns to the SAMPLE mode 7 8 5 2 NO NOx Calibration Procedure Adjust the NO concentration to approximately 80 of the URL of the NO channel The expected NO and NOx span concentrations can be determined by measuring the cylinder and diluent flows and computing the resulting concentrations If there is any NO2 impurity in the NO standard gas it should be taken...

Page 111: ...omment 1 Press CAL The M200A enters the calibrate mode from sample mode 2 Wait 10 min Wait for readings to stabilize at span values 3 Press SPAN If you change your mind after pressing SPAN you can still press EXIT here without spanning the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations 5 Press EXIT M200A returns to SAMPLE mode The analog voltage output should meas...

Page 112: ...ring this procedure do not make any adjustments to the instrument 1 Generate an NO concentration near 90 of the URL Dilution air and O3 generator air flows should be the same as used in the calculation of specified conditions of the dynamic parameter according to Section 7 8 4 Sample this NO concentration until the NO and NOx responses stabilize Record the NO and NOx concentrations 2 Turn on and a...

Page 113: ...he y axis against the generated NO2 NO2 OUT on the x axis The plot should be a straight line within the 2 linearity criteria given for the NOx and NO channels If the plot is not linear the most likely c 6 Moly Converter Efficiency The moly efficiency should be 96 to 102 efficient If it is outside these limits it should b replaced The converter efficiency can be For each NO2 concentration generated...

Page 114: ...de the M200A enters the Converter Efficiency menu and requests expected NO2 cal gas concentration 2 Key in expected NO2 concentration Then ENTR Enter the expected NO2 cal gas concentration We suggest you generate a NO2 concentration of 80 of current range 3 Press CAL CONC MOLY SET Set CE to 1 0000 Reset the previous converter efficiency value to 1 00 4 Press CAL CONC CONV CAL wait 10 min Then pres...

Page 115: ... by a one point check at least once every two weeks Accuracy is determined by a three point audit once each quarter Essential to quality assurance are scheduled checks for verifying the operational status of the monitoring system The operator should visit the site at least once each week Every two weeks a Level 1 zero and span check must be made on the analyzer Level 2 zero and span checks should ...

Page 116: ... matched to any changes drifts in the analyzer response LEVEL 2 ZERO AND SPAN CHECK A Level 2 zero and span check is an unofficial check of an analyzer s response It may include dynamic checks made with uncertified test concentrations artificial stimulation of the analyzer s detector electronic or other types of checks of a portion of the analyzer etc Level 2 zero and span checks are not to be use...

Page 117: ... introduction system No moisture foreign material leaks obstructions sample line connected to manifold Weekly visual inspection Clean repair or replace as needed Recorder 1 Adequate ink paper 2 Legible ink traces 3 Correct chart speed and range 4 Correct time Weekly visual inspection 1 Replenish ink and paper supply 2 Adjust time to agree with clock note on chart Analyzer operational settings 1 TE...

Page 118: ...ems 1 and 2 are described in detail in Subsection 9 1 3 of Section 2 0 9 Q A Handbook Item 3 is described in Subsection 9 1 4 of the same section Refer to the Troubleshooting Section 9 of this manual if the instrument is not within the allowed variations 7 8 10 1 Zero Span Check Procedures The Zero and Span calibration can be checked a variety of different ways They include 1 Manual Zero Span Chec...

Page 119: ...btained 3 Record this value NO and NOx precision checks should also be made if those data are being reported Information from the check procedure is used to assess the precision of the monitoring data see Section 2 0 8 Q A Handbook for procedures for calculating and reporting precision 7 8 11 Recommended Standards for Establishing Traceability To assure data of desired quality two considerations a...

Page 120: ... such as Scott Specialty Gases etc 7 8 12 Certification Procedures of Working Standards NOTE If the assayed concentration of NO2 impurity in the NO cylinder NO2 imp is greater than the 1 ppm value allowed in the calibration procedure make certain that the NO delivery system is not the source of contamination before discarding the NO standard The NO content of the NO working standard must be period...

Page 121: ...to calculate the diluted concentrations Plot the analyzer NO response in ppm versus the nominal diluted NO concentration and determine the slope SNOM Calculate the NO concentration of the working standard NO STD from NO STD NO NOM x SNOM A procedure is presented in the TAD in Reference 2 7 8 12 2 Other Methods of Establishing Traceability They are 1 NO working standard traced to NIST NO2 standard ...

Page 122: ...or Independent Range Observe the following guidelines when calibrating in AutoRange or Independent Range 1 When doing a span calibration of the M200A use 80 of the highest of the ranges This will result in the most accurate calibration 2 When selecting concentrations for the NO NOx or NO2 GPT dynamic calibrations use 80 of the highest AutoRange or the highest Independent Range This will produce th...

Page 123: ...o pots on an analog instrument Just as in the analog instrument if the slope or offset get outside of a certain range the instrument will not perform as well The slope value will be slightly different on the NO and NOx channels This is due to slight differences in pneumatic resistance in each pathway If the slopes are significantly different there is a calibration error or a cross port leak in the...

Page 124: ... 9 1 6 NOTE The NO and NOx slopes should be equal within 0 1 3 Scroll the TEST function menu until the NOx OFFSET is displayed This number should be near zero A value of 0 0 20 150 indicates calibration in the optimal range This number already has the AutoZero value subtracted out and is mainly the background signal due to the molybdenum converter If the OFFSET value is outside this range check Se...

Page 125: ...October 1976 91 p 3 Quality Assurance Requirements for State and Local Air Monitoring Stations SLAMS Appendix A Federal Register Vol 44 No 92 pp 27574 27582 May 1979 4 Catalog of NBS Standard Reference Materials NBS Special Publication 260 1975 76 Edition U S Department of Commerce NBS Washington D C June 1975 5 Quality Assurance Handbook for Air Pollution Measurement Systems Volume I Principles E...

Page 126: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 INTENTIONALLY BLANK 7 38 ...

Page 127: ...y 12 months Figure 9 7 Zero Air Canister Refill every 3 months Section 8 5 Reaction Cell Window Clean annually or as necessary Section 9 3 8 Figure 8 3 Ozone Flow Check every year Figure 9 9 Section 9 3 7 Sample Flow Check every year Figure 9 9 Section 9 3 7 Moly Converter Check efficiency every 6 months Figure 8 2 Section 8 6 Pneumatic Lines Examine every 12 months clean if necessary Figure 8 4 F...

Page 128: ... Scrubber on Pump Pack Replace charcoal every 3 months Filter for Ozone Scrubber Replace every 12 months Filter for PermaPure Drier Replace every 12 months Zero Air Canister Refill every 3 months Reaction Cell Window Clean annually or as necessary Ozone Flow Check every year Sample Flow Check every year Moly Converter Check efficiency every 6 months Pneumatic Lines Examine every 12 months clean if...

Page 129: ...ange the filter 1 Fold down the M200A front panel 2 Locate the filter on the left side of the analyzer front panel See Figure 8 1 for an exploded view of the filter assembly 3 Visually inspect the filter through the glass window 4 If the filter appears dirty unscrew the hold down ring remove the teflon o ring and then the filter 5 Replace the filter being careful that the element is fully seated i...

Page 130: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 1 Replacing the Particulate Filter 8 4 ...

Page 131: ...chlorine iodine etc since explosive compounds may be formed on contact with ozone 8 4 Replacing the Permeation The permeation tube is contained in the oven at the rear center of the instrument refer to Figure 2 5 for its location See Figure 6 1 for illustration 1 Turn off the power to the M200A 2 Remove the two pneumatic fittings and the rubber insulation from the top of the assembly 3 Remove the ...

Page 132: ...al The entire cartridge can be replaced or just the charcoal and Purafil inside the cartridge To replace the scrubber materials 1 Disconnect the scrubber from the rear panel pneumatic fitting and remove from the hold down clip While removing the cartridge check the DFU filter for contamination and dirt replace if necessary 2 Unscrew the top remove the felt pad and empty the contents 3 Inspect the ...

Page 133: ...osening the 4 captive screws that secure the assembly to the chassis CAUTION The converter operates at 315º C Severe burns can result if not enough time is allowed for the assembly to cool Do not handle assembly until it is at room temperature 3 Disconnect the gas fittings and power cable grounding from the can 4 Remove the valve assembly and bottom bracket and re attach those two parts to the rep...

Page 134: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 2 Molybdenum Converter Assembly 8 8 ...

Page 135: ...n the sample and ozone flow orifices since they are protected by fritted filters If tests shows that cleaning is necessary then do the following A The manifold assembly should be cleaned by removing the O ringed fittings springs fritted filter orifices and O rings It is suggested that the orifice filter and o rings be replaced unless an ultrasonic cleaner and methanol or methylene chloride is avai...

Page 136: ...JEWEL DOWN MANIFOLD ORING SLEEVE WINDOW ORING PMT HOUSING REACTION CELL GASKET EXHAUST NOZZLES DO NOT REMOVE HEATER THERMISTOR P N 00227 P N 00273 P N OR0002 P N OR0003 P N 00127 P N FT0010 P N HW0002 P N FL0001 P N OR0001 P N 0009406 P N 0009404 P N FT0017 P N FT0010 P N OR0001 P N OR0034 O RING 0033703 HEATER THERMISTOR ASSY 00884 01534 Figure 8 3 Reaction Cell Assembly 8 10 ...

Page 137: ...se time It is important that the pneumatic system be periodically inspected and thoroughly cleaned if necessary Clean by disassembling and passing methanol through three times Dry with nitrogen or clean zero air Also inspect all pneumatic lines for cracks and abrasion on a regular basis Replace as necessary Refer to the pneumatic diagram in Figure 8 4 Figure 8 5 Figure 8 6 8 11 ...

Page 138: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 4 Pneumatic Diagram Standard Configuration 8 12 ...

Page 139: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 5 Pneumatic Diagram with Zero Span Valve Option 8 13 ...

Page 140: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 8 6 Pneumatic Diagram with IZS Option 8 14 ...

Page 141: ...e heat sink fins This fitting can be pressurized and the sensor checked for leaks The leakdown rate is the same as above If you have a leak checker 1 Turn off instrument power and pump power 2 Disconnect pump at rear panel Cap the sample inlet port ozone generator air inlet and zero air inlet if IZS option present and connect the leak checker to the exhaust port CAUTION Pressure must be less than ...

Page 142: ...emove the connector to the display and the RS 232 connector 3 The CPU board is attached to the larger V F board 4 Remove the board laying it down on an insulating surface such that the board edge pins on the PCB are on the left The PROM chip should be at the top center The current chip should be labeled with something like 210H9 See Figure 9 2 for prom location Gently pry the chip from its socket ...

Page 143: ...level troubleshooting consult the schematics for the appropriate board in Appendix A 1 NOTE The values of the readings shown on the front panel of the instrument may at times read XXXXXX This means that the reading is off scale and therefore meaningless General Troubleshooting 1 If the fault is light on and it stays on after you clear the warning messages see Section 9 1 2 2 Think of the analyzer ...

Page 144: ...plugged ozone killer 2 Change of pump or malfunctioning pump 3 Plugged pneumatics 4 Change in altitude 4 Check for pneumatic leaks perform the leak check procedure in Section 8 9 If slopes are different from each other by 1 this usually indicates a leak in the switching NO NOx valve or improper calibration 5 Check for light leaks Turn off the ozone generator then wait 7 minutes If the reading drop...

Page 145: ...uction Manual 02246 Rev F1 9 1 Operation Verification M200A Diagnostic Techniques 9 1 1 Fault Diagnosis with TEST Variables Table 9 1 indicates possible fault conditions that could cause the TEST functions to be outside the acceptable range 9 3 ...

Page 146: ... Preamp board 5 Outgassing Moly converter 6 PMT recently exposed to room light 7 Dirty contaminated reaction cell 8 Mis calibrated slope offset outside of limits SAMPLE FLW 500 cc min 50 This is the instrument flow It is computed using the up stream and down stream pressures across the sample flow orifice This method can give a false flow indication if the orifice is plugged and the sample pump is...

Page 147: ...signal from 1 2 plus signal from ozone generator air 4 Sampling pure NO span gas signal will be 1 2 3 above plus signal from chemiluminescent reaction Slight pulsations will be noticed as the M200A switches from NO to NOx This is due to differences in flowrates in each channel These differences are taken out in the calibration process resulting in slightly different slopes for the NO and NOx chann...

Page 148: ...L TEMP 50 1 C The reaction cell temperature is controlled to 50 C 1 C by the computer It should only read other values when the instrument is warming up If the value is outside the acceptable range go to the procedure for diagnosing the Reaction cell temp supply in Section 9 3 8 2 The alarm limits are less than 45 C and greater than 55 C BOX TEMP 8 48 C The Box Temp is read from a thermistor on th...

Page 149: ...wer pump back pressure Pressures out of the acceptable range will decrease instrument noise performance and sensitivity SAMP PRESS 29 5 Hg at sea level The sample pressure is taken just upstream of the reaction cell It usually runs about 0 5 less than ambient pressure due to the restrictions in the sample intake tubing Sample pressure should be within 1 Hg of atmospheric pressure The pressure sens...

Page 150: ...ed out the RS 232 port If a warning is present it can be cleared by pressing the CLR key on the front panel If uncleared warnings are present they can be examined by pressing the MSG button on the keyboard Any time the instrument is powered up the SYSTEM RESET alarm will be displayed Generally it is ok to ignore warnings that are displayed shortly after power up only if they persist should they be...

Page 151: ...ause of loss of vacuum which causes the ozone flow to go to zero They also can occur due to a flow sensor failure RxCELL PRESS WARNING Vacuum out of spec warnings are caused by leaks pump failure or disconnected pump BOX TEMP WARNING Box temp out of spec Instrument fan failure enclosure temperature failure Operation of the M200A in a too warm or cold environment will cause degradation of data qual...

Page 152: ...ction cell Do the factory calibration procedure located in Section 9 1 6 CANNOT DYN SPAN Dynamic span cal out of spec The reading of the PMT was too high or low for the SPAN button to appear Make sure the instrument is receiving correct concentration span gas Make sure the expected span concentration is entered Check for dirty reaction cell Do the factory calibration procedure located in Section 9...

Page 153: ...ostic mode can be looked at as a tool kit of diagnostics to help troubleshoot the instrument To enter DIAG mode press SETUP MORE DIAG The diagnostic modes are summarized in Table 9 3 To access these functions press SETUP MORE DIAG then press NEXT PREV to select the desired mode then press ENTR to select that mode 9 11 ...

Page 154: ... that value The exact voltage values depend on the jumper settings on the analog output buffer amplifiers D A CALIBRATION The analog output is created by 4 digital to analog converters This selection starts a procedure to calibrate these outputs Refer to Section 9 3 3 1 for a detailed procedure TEST CHANNEL Allows several different internal voltages to be routed to an analog output port Useful for...

Page 155: ... circuitry 3 SPAN_VALVE YES Switches the IZS Zero Span valve Use this bit to test the valve function 4 CAL_VALVE YES Switches the IZS Sample Cal valve Use this bit to test the valve function 5 NOX_VALVE YES Switches the NO NOx valve Use this bit to test the valve function 6 RCELL_HEATER YES Shows the status of the reaction cell heater This has the same function as the LED in the Power Supply Modul...

Page 156: ... and 20 000 ppb Logic high 20 000 ppb logic low 2000 ppb M200A will reset range to correct value based on user set range value 15 ST_RCEL_PRESS YES Status Bit Reaction Cell Pressure alarm Logic High pressure out of acceptable range Logic Low pressure inside acceptable range 16 ST_ZERO_CAL YES Status Bit Zero Calibration mode Logic High M200A in Zero cal mode Logic Low Not in Zero cal mode 17 ST_SP...

Page 157: ...ffscale 25 SAMPLE_PRESs NO Sample pressure in mV Typical sea level value 4300 mV for 29 9 Hg A 26 RCELL_TEMP NO Reaction Cell temperature Typically 3500 mV for 50 C 27 BOX_TEMP NO Box Temperature Typically 1800 mV for 25 C 28 IZS_TEMP NO IZS permeation tube oven temp Typically 3500 mV for 50 C 29 PMT_TEMP NO PMT cold block temperature Typically 3600 mV for 10 C 30 DCPS_VOLTAGE NO DC power supply c...

Page 158: ...everts to instrument output when function is exited 40 NO_CONC YES NO DAC programming voltage See above for description 41 NO2_CONC YES NO2 DAC programming voltage See above for description 42 TEST_OUTPUT YES TEST channel programming voltage See above for description 9 1 3 2 Electric Test This function injects a constant voltage between the preamplifier and the buffer amplifier on the preamp board...

Page 159: ...ument setup as to autorange indep range current range and places the instrument into the 2000 ppb range 2 Turns off power to the ozone generator to assure there is no interfering light from the reaction cell 3 Disables the AUTOZERO circuit 4 Turns on the OT LED the PMT reading in TEST functions should be 2000 1000 mV To turn on OT press SETUP MORE DIAG then scroll to OPTIC TEST then press ENTR If ...

Page 160: ... During the test it should be possible to detect the presence of the signal with a DVM on pin 2 or 3 depending on the DTE DCE switch setting or by the flickering of the red test LED A detailed procedure is given in the Troubleshooting Section 9 3 2 9 1 4 M200A Internal Variables The M200A software contains many adjustable parameters Most of the parameters are set at time of manufacture and do not ...

Page 161: ...e pressure compensation factor is equal to 1 0000 at 29 92 Hg A This factor increases sample concentration with decreasing sample pressure to compensate for a lower head pressure on the sample flow orifice Taken together the three factors change the output of the instrument very little The sample temperature is essentially invariant and the cell pressure and sample pressure factors tend to cancel ...

Page 162: ...LOW_SET cc min 500 400 1000 Nominal sample flow rate 5 OFLOW_SET cc min 80 0 500 Nominal ozone flow rate 6 IZS_SET C 50 30 70 IZS temperature set point 7 RS232_MODE Bit Field 0 0 99999 Value is SUM of following decimal numbers 1 enable quiet mode 2 enable computer mode 4 enable security feature 8 enable front panel RS 232 menus 16 enable alternate protocol 32 enable multidrop protocol 8 CLOCK_ADJ ...

Page 163: ... SAMPLE PRESSURE transducer SAMPLE PRESSURE 0 Hg Abs 40 Hg Abs The sample pressure is measured by an absolute pressure meter The absolute pressure at sea level is 29 92 Hg The exact reading will vary a few tenths due to passing weather fronts and daily temperature cycling The reading will decrease about 1 Hg with each 1000 ft gain in altitude For example the absolute pressure at 10 000 ft 3000 m i...

Page 164: ...temperature The Box temp generally runs about 5o C above the surrounding air temp Thus in a 25o C room the Box temp would be about 30o C and have a TEST channel voltage of about 2000 mV DCPS VOLTAGE 0 mV 5000 mV The DCPS is a composite of several DC power supply voltages in the instrument It has been arbitrarily set at 2500 mV which is typical HVPS VOLTAGE 0 V 5000 V The HVPS voltage is a scaled u...

Page 165: ...L to select single range operation 3 Set the RANGE to 500 ppb by SETUP RNGE SET and key in 500 then press ENTR 4 Input Zero gas into the sample port and Scroll to the TEST function labeled PMT Typical reading should be less than 50 mV Readings above 150 mV indicate a pneumatic leak light leak contaminated reaction cell bad zero gas or wet air coming into the ozone generator If readings are greater...

Page 166: ...ppb then determine the expected voltage from the X axis 10 Adjust S2 the HVPS coarse adjustment on the preamp board to the setting that produces a signal that is closest to 800 mV Adjust S1 the HVPS fine adjustment to the setting that produces a signal that is closest to 800 mV Use R19 to trim the reading to 800 50 mV The readings will periodically go to zero as the AutoZero circuit operates ignor...

Page 167: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 1 Span Calibration Voltage 9 25 ...

Page 168: ...not produce an instrument that will properly span please contact your local distributor or the Teledyne API factory Teledyne API s phone number is on the front page of this manual 9 2 Performance Problems When the response from a span check is outside the control limits the cause for the drift should be determined and corrective action should be taken Some of the causes for drift are listed below ...

Page 169: ...urn to the OFF position when an attempt is made to turn it on 9 2 2 Flow Check 1 Check TEST function RCEL this is the absolute pressure in the reaction cell It should be 5 10 in Hg A 2 Check that pump is running Check RCEL TEST function for proper pressure 3 Check that the pump tubing is connected to rear of analyzer 4 Test that pump is producing vacuum by removing fitting at rear of analyzer and ...

Page 170: ...ontains NO or NO2 3 Check instrument electronics A Do ELEC TEST procedure in DIAGNOSTIC menu Section 9 1 3 2 B Do OPTIC TEST procedure in the DIAGNOSTIC menu Section 9 1 3 3 If the M200A passes ET and OT that means the instrument is capable of detecting light and processing the signal to produce a reading Therefore the problem is in the pneumatics or ozone generator 4 Check ozone generator subsyst...

Page 171: ...r fixing the cause of the high AutoZero filter readings the M200A will take 15 minutes for the filter to clear itself 3 Check for leaks 4 Check for used up zero air canister if the instrument has the IZS option and the canister is being used to zero the instrument 9 2 5 Excessive Noise Common reasons for excessive noise are 1 Leak in pneumatic system 2 Light leak check the sensor module with stron...

Page 172: ...y vacuum observe warning messages or RCEL in TEST functions 12 Sample vent line too short allowing room air to mix with span gas Line should be a minimum of 15 long 13 Calibration gas source unstable if equipped with IZS option permeation tube could be nearing exhaustion or IZS oven temperature is unstable check warning messages or observe IZS TEMP in TEST function 14 IZS permeation tube unstable ...

Page 173: ...he equivalent to the span pot hitting the rotation stop Here are some things to check 1 Check the expected span concentration values in CAL CONC NOX and CAL CONC NO and compare them to the values of the calibration span gas being input They should be nearly equal 2 Check the PMT TEST function With NO span gas in the instrument the value should be 2x the expected span concentration in step 1 above ...

Page 174: ...would be the equivalent to the zero pot hitting the rotation stop Check the following Select the PMT TEST function With zero gas going into the instrument the value should be less than 150 mV typically less than 50 mV If you are getting a high reading the probable reasons are 1 The reading may be temporarily high if the PMT has been recently exposed to room light If so let the instrument run for s...

Page 175: ...Flow calibrator and the flow is 10 of the full scale flow on either flowmeter you may need to purchase lower concentration standards 4 The standard gasses may be mis labeled as to type or concentration Labeled concentrations may be outside the certified tolerance 5 Contamination in sample delivery system A Dirt in sample lines or reaction cell B Contaminated cal gas source NO2 in NO cal gas is com...

Page 176: ...or NO2 cal gas source to become stable 8 Moly converter temperature too low 9 Miscalibration see Table 7 1 9 2 12 Analog Output Doesn t Agree with Display Concentration The analog output is proportional to the range Zero volts output corresponds to zero ppb and 5 volts corresponds to the maximum range setting in ppb If this is not observed do the following 1 V F board DAC s out of calibration Do D...

Page 177: ...nel display If the display successfully completes its power on self test it will display a single underline character _ in the left most character of the top line of the display If this character is present the display is working properly 6 Power down the analyzer and re attach the cable to J2 and proceed to the next test 9 3 1 2 Single Board Computer The SBC40 is a full function computer designed...

Page 178: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 2 CPU Board Jumper Settings 9 36 ...

Page 179: ...e keys is variable and depends on the menu level of the software To check the operation of the keyboard each key should perform an operation indicated by its current definition shown on the second line of the display Example 1 testing key 1 left most key At the top level menu key 1 is defined as the TEST function Pressing this key should cause the middle field of the top line of the display to sho...

Page 180: ...2 Protocol BAUD rate Data bits Parity Second is to get the communication protocol for each instrument to match In Figure 9 3 the default RS 232 parameters are listed The BAUD rate can be changed in the software menus under SETUP MORE COMM BAUD Data Communications Software for a PC You will need to purchase a software package so your computer can transmit and receive on its serial port There are ma...

Page 181: ...ostic There are several features of the M200A to make connecting to RS 232 and diagnosing RS 232 faults easier There are two LED s on the rear panel Connector Board 01114 which are connected to pin 2 and 3 of the DB 9 connector on the board If the switch is in the DCE position default the red LED is connected to pin 3 of the DB 9 connector When data is transmitted by the M200A the red LED will fli...

Page 182: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 3 RS 232 PIN Assignments 9 40 ...

Page 183: ...ed through a programmable 16 channel multiplexer Chances are that if one channel works they all work A Turn on instrument B Press TEST key on front panel keyboard until DCPS test is displayed C The value displayed should read 2500 200 mV If the M200A passes this test it has successfully digitized a 2500 mV composite voltage output from the Power Supply Module The signal should also be quiet 25 mV ...

Page 184: ...nect a jumper wire across pins 1 and 2 of the rear panel connector as shown in Figure 2 2 C Shortly after closure is made the instrument should switch into zero mode as indicated on the front panel display D Remove the jumper 6 Digital output channel test There are 24 output bits on the V F board The 24 bits are made up of 3 8 bit ports It is possible for a single 8 bit port or even a single bit w...

Page 185: ...strument power OFF Motherboard Jumpers The motherboard contains 4 pairs of jumpers JP1 JP8 one pair for each analog output channel Each channel can be configured for either voltage or current output Use the Table 9 7 to configure the jumpers Table 9 7 Motherboard Jumper Settings Analog output Terminal Pair Rear panel Jumper Pair Jumper Setting for Voltage Mode Jumper Setting for Current Mode DAC 0...

Page 186: ...rent loop or 10 V output 6 OFF Use for non isolated current loop or 10 V output 5 V output or isolated current loop Switch State Comment 3 OFF Use for isolated current loop or 5 V output 4 ON Use for isolated current loop or 5 V output 5 OFF Use for isolated current loop or 5 V output 6 OFF Use for isolated current loop or 5 V output 1 V output Switch State Comment 3 OFF Use for 1 V output 4 OFF U...

Page 187: ... of the calibration If operating all analog outputs in voltage mode this completes the calibration procedure The calibration of each channel can be checked or recalibrated independently by scrolling the PREV NEXT buttons and pressing CAL for the desired channel Also a DC offset bias can be entered by pressing the OFFSET button for the appropriate channel Calibrating a channel for current loop oper...

Page 188: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 4 V F Board Settings 9 46 ...

Page 189: ...ifier Section The Status Temp board 01086 is a multifunction board consisting of 4 thermistor amplifiers that monitor 1 IZS temperature 2 Reaction Cell temperature 3 Box temperature 4 Spare All 4 amplifiers have a single gain control R34 If necessary you can adjust the temperature values by selecting the BOX TEMP TEST function and adjusting R34 until the correct box temp is shown Remember that the...

Page 190: ... 315o C The CPU is programmed to always drive the temp to 315 C so the voltage at U1 must be used as the absolute reference as to the correct temperature The temperature will vary 3 degrees due to the operation of the temperature control loop in the CPU The temperature can be adjusted by the R6 pot on the Status Temp board To adjust the molybdenum converter temperature 1 Select the CONV TEMP TEST ...

Page 191: ...C External contacts can be contact closures or open collector transistor contacts DO NOT apply any voltage since 5 VDC is supplied internally Individual status lines can be set or cleared using the DIAGNOSTIC mode SIGNAL I O This can be useful for simulating fault conditions in the analyzer to see if external circuitry is working correctly See Table 5 8 for pin assignments 9 3 4 4 4 20 mA Current ...

Page 192: ...witch Board has many different functions It takes logic signals from the V F board and uses them to switch 4 115 VAC and 4 12 VDC loads The board also contains the instrument central grounding tie point It routes unswitched AC and DC power as needed Connector J2 programs the power transformers to take 115 220 and 240 VAC inputs Power Transformers There are potentially 2 input power transformers in...

Page 193: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 5 Power Supply Module Layout 9 51 ...

Page 194: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 6 Electrical Block Diagram 9 52 ...

Page 195: ...e of the board The following Table 9 10 describes the typical operation of each LED Table 9 10 Power Supply Module LED Operation No Function Description 1 NO NOx Valve Should switch about every 5 sec On click sound NOx mode Off thud sound NO mode 2 Zero Span Valve Should switch ON when CALZ or CALS button is pressed 3 Sample Cal Valve Should switch ON when CALS button is pressed 4 AutoZero Valve O...

Page 196: ...gh water vapor in room air to cause the generator to make nitric acid aerosol It is very corrosive and causes the generator cartridge to short out due to salt build up This reduces the ozone concentration generated which can cause the analyzer to be non linear due to insufficient ozone concentration 2 Blown fuse The Ozone generator fuse is located on the upper end of the generator case 3 Contamina...

Page 197: ... outer annulus is evacuated by the instrument pump This creates a concentration gradient causing water in ambient air to diffuse into the outer annulus thus the air in the inner tube becomes progressively drier as it progresses down the tube Due to the large number of connections and fittings on the drier the most common drier fault is leaks Before proceding with any other procedures check the dri...

Page 198: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 7 Ozone Generator Subsystem 9 56 ...

Page 199: ... calibrated flow meter to make small adjustments in R3 to dial in correct flow To adjust the SAMPLE PRESSURE 1 Go to DIAG mode by pressing SETUP MORE DIAG then select SIGNAL I O and press ENTR Select SAMPLE_PRESS by using NEXT PREV keys 2 Adjust R1 to read 4100 mV which will give approximately the correct pressure 3 Press EXIT to return to the SAMPLE mode Select SAMP TEST function Use a calibrated...

Page 200: ... to SFLOW_SET and press EDIT The first value displayed is the SFLOW_SET VALUE reading ADD the value from step 1 to the reading shown and key in the new reading then press ENTR Check the low and high warning limits which are displayed as the next 2 values to make sure the new value does not exceed the warning limits Press exit to return to SAMPLE mode 3 Observe the SAMP FLW value If necessary repea...

Page 201: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 8 Flow Pressure Sensor 9 59 ...

Page 202: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 9 NOx Sensor Module 9 60 ...

Page 203: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 10 NOx Sensor Module 9 61 ...

Page 204: ...erature by toggling a bit on the V F board The V F board TTL logic controls a solid state switch on the Switch Board in the PSM The switched 115VAC comes out of the PSM to a connector near the underside of the reaction cell A warning message may be present during initial warm up or if the connector is not plugged in after cleaning the reaction cell 9 3 8 3 Preamp Board The NOx Preamp Board is a mu...

Page 205: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 11 PMT Cooler Subsystem 9 63 ...

Page 206: ...e interior of the Sensor Module and is plugged into the PMT tube It requires 2 voltage inputs The first is 15 which powers the supply The second is the programming voltage which is generated on the Preamp Board This power supply is unlike a traditional PMT HVPS It is like having 10 independent power supplies one to each pin of the PMT The test procedure below allows you to test each supply Adjustm...

Page 207: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 Figure 9 12 High Voltage Power Supply 9 65 ...

Page 208: ... valves using the SIGNAL I O selection of DIAGNOSTIC mode Refer to Section 9 1 3 for information on using the DIAG mode Also refer to Figure 8 4 Figure 8 5 Figure 8 6 for a pneumatic diagram of the system Check for the IZS option 1 Check for the physical presence of the IZS oven See Figure 2 5 for the Z S Valve location 2 Check front panel TEST functions for presence of IZS temperature If IZS temp...

Page 209: ...c cause of many performance problems is a leak Refer to Section 8 9 for the leak check procedure 9 3 10 2 Pump The external sample pump is capable of maintaining the cell pressure at 5 Hg A If higher pressures are noted the pump may need servicing Check the pump ozone scrubber for leaks or rebuild pump The internal sample pump pressures tend to run slightly higher than the external pump due to its...

Page 210: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 INTENTIONALLY BLANK 9 68 ...

Page 211: ...sket Rx Cell Qty 12 002600100 Moly Cartridge Assy Long TC OBSOLETE USE P N 0303200 002730000 Window 665 NM 002 013100 002761000 CPU Board 200A AMX 002761200 CPU Board 200A PRE AMX 003690000 Filter TFE 37 mm Qty 100 872 006400 003690100 Filter TFE 37 mm Qty 25 872 006300 004020200 Flow Pressure Sensor Board 004330000 Zero Air Scrubber IZS Purafil Charcoal 005140300 V F Board 005960000 Activated Cha...

Page 212: ...ler 013570000 Thermistor Assembly Cooler 013600000 Instruction Manual for M200A 014010000 Molybdenum Converter w o Valves OBSOLETE USE P N 0218901 014020000 M200A 37 mm Filter Expendables Kit 014020200 M200A 47 mm Filter Expendables Kit 014030000 M200A Expendables Kit IZS 014040000 M200A Level 1 Spares Kit 014040100 M200A Spares Kit for 1 Unit 014060000 NOx PROM with Software 014080100 Assembly Hi...

Page 213: ...W HE0000019 Heater MOLY Converter HW0000020 Spring Flow Control HW0000036 TFE Thread Tape 48 FT KIT000002 Retrofit O3 Gen Brick M200A KIT000011 Retrofit Preamp TEC Cntl M200A KIT000014 Retrofit M200A AMX KIT000019 Replacement Cooler Assembly M100A M200A KIT000021 Replacement PWR SW BD A M100A 200A KIT000028 Retrofit 37mm Retaining Ring Sample Filter KIT000029 Retrofit 47mm Retaining Ring Sample Fi...

Page 214: ...O Ring Scrubber OR0000025 O Ring Zero Air Scrubber OR0000034 O Ring Input Output Mirror Detector OR0000042 O Ring Sensor Assembly OR0000044 O Ring Reaction Cell OR0000045 O Ring Sample Filter PS0000010 15V Switching Power Supply PS0000010 15V Switching Power Supply PU0000005 Pump 1150V 60Hz PU0000006 Pump 220V 50Hz PU0000011 607 Pump Rebuild Kit RL0000003 Solid State Relay 12 VDC RL0000007 3 AMP O...

Page 215: ...1 FL0000001 Sintered Filter 002 024900 2 FL0000003 Filter DFU 036 040180 1 HW0000020 Spring Flow Control 2 OR0000001 O Ring Flow Control 4 Table 10 3 Teledyne API MODEL 200A 47 mm FiIter Expendables Kit Part No Description 014020200 M200A 47 mm Filter Expendables Kit Includes Qty 002270100 Gasket Rx Cell Qty 12 1 005960000 Activated Charcoal 6 lbs 1 009690100 Filter TFE 47 mm Qty 25 2 FL0000001 Si...

Page 216: ...A Level 1 Spares Kit Part No Description 014040000 M200A Level 1 Spares Kit Includes Qty 004020200 Flow Pressure Sensor Board 1 011310000 Drier Assembly Complete with Flow Control 1 011330000 O3 Generator Assembly 1 011930000 PMT NOx 1 014080100 Assembly High Voltage Power Supply 1 014610000 Cooler Assembly 1 021890100 Welded Moly Conv W o val Long TC 1 HE0000017 Heater Reaction Cell 12W 1 HW00001...

Page 217: ...00A Spares Kit for 1 Unit Part No Description 014040100 M200A Spares Kit for 1 Unit Includes Qty 012360000 Fan Power Supply Module 1 013140000 Fan PMT Cooler 1 CB0000001 FUSE O3 1A 1 HE0000017 Heater Reaction Cell 12W 1 PS0000010 15V Switching Power Supply 1 RL0000015 Solid State Relay 115 Vac 1 10 7 ...

Page 218: ...Teledyne API Model 200A NOX Analyzer Instruction Manual 02246 Rev F1 INTENTIONALLY BLANK 10 8 ...

Page 219: ...d Schematic 01114 Connector Board Assembly 01115 Connector Board Schematic 0113912 PSM Overall schematic CE Mark 01206 Switch Board Assembly 01207 Switch Board Schematic 01464 DC Power Supply Assembly 01465 DC Power Supply Schematic 01471 4 20 mA Output Option 0166803 Ozone Generator Power Supply Assembly 01669 Ozone Generator Power Supply Schematic 01839 Thermoelectric Cooler Control Assembly 018...

Page 220: ...037 ISBX I O Port Assembly 02038 ISBX I O Port Schematic 02107 Preamp Board Assembly 02108 Preamp Board Schematic 02222 Switch Board Assembly CE MARK 02223 Switch Board Schematic CE MARK 02230 DC Power Supply Assembly CE MARK 02231 DC Power Supply Schematic CE MARK 03172 M200A Interconnect Diagram 03173 M200AH Interconnect Diagram 03174 M200AU Interconnect Diagram 03175 M201A Interconnect Diagram ...

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