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 Theory of Operation Teledyne API – Model T300/T300M CO Analyzer 

 Teledyne 

Analytical 

Instruments 

282 

Critical flow orifices are a remarkably simple way to regulate stable gas flow rates.  
They operate without moving parts by taking advantage of the laws of fluid dynamics.  
By restricting the flow of gas though the orifice, a pressure differential is created.   
As the pressure on the downstream side of the orifice continues to drop, the speed that 
the gas flows through the orifice continues to rise.  Once the ratio of upstream pressure 
to downstream pressure is greater than 2:1, the velocity of the gas through the orifice 
reaches the speed of sound.  As long as that ratio stays at least 2:1, the gas flow rate is 
unaffected by any fluctuations, surges, or changes in downstream pressure because such 
variations only travel at the speed of sound themselves and are therefore cancelled out 
by the sonic shockwave at the downstream exit of the critical flow orifice.   

 

SPRING 

O-RINGS 

FILTER 

CRITICAL 

FLOW 

ORIFICE 

AREA OF 

LOW 

PRESSURE 

AREA OF 

HIGH 

PRESSURE 

Sonic 

Shockwave 

 

Figure 13-8: 

Flow Control Assembly & Critical Flow Orifice 

The actual flow rate of gas through the orifice (volume of gas per unit of time), depends 
on the size and shape of the aperture in the orifice.  The larger the hole, the more the gas 
molecules move at the speed of sound and pass through the orifice.  Because the flow 
rate of gas through the orifice is only related to the minimum 2:1 pressure differential 
and not absolute pressure, the flow rate of the gas is also unaffected by ambient pressure 
fluctuations downstream.   
The critical flow orifice used in the GFC7001T/GFC7001TM is designed to provide a 
flow rate of 800 cc/min. 

13.3.2. 

PARTICULATE FILTER  

The GFC7001T/GFC7001TM Analyzer comes equipped with a 47 mm diameter, 
Teflon, particulate filter with a 5 micron pore size.  The filter is accessible through the 
front panel, which folds down to allow access, and should be changed according to the 
suggested maintenance schedule described in Table 11-1. 

Содержание GFC7001T

Страница 1: ...n Manual Model GFC7001T Carbon Monoxide Analyzer TELEDYNE ELECTRONIC TECHNOLOGIES Analytical Instruments 16830 Chestnut Street City of Industry CA 91748 Telephone 626 934 1500 Fax 626 961 2538 Web www teledyne ai com P N M90914 DATE 12 01 14 ...

Страница 2: ...ranty Important Notice This instrument provides measurement readings to its user and serves as a tool by which valuable data can be gathered The information provided by the instrument may assist the user in eliminating potential hazards caused by his process however it is essential that all personnel involved in the use of the instrument or its interface be properly trained in the process being me...

Страница 3: ... and verifying and ends with specifics of calibrating for use in EPA monitoring Part III provides detailed technical information such as theory of operation maintenance and troubleshooting and repair It also contains a section that provides important information about electro static discharge and avoiding its consequences The appendices at the end of this manual provide support information such as...

Страница 4: ...Model GFC7001T Carbon Monoxide Analyzer Teledyne Analytical Instruments iv This page intentionally left blank ...

Страница 5: ...fied maintenance personnel only DO NOT TOUCH Touching some parts of the instrument without protection or proper tools could result in damage to the part s and or the instrument Electrical Ground This symbol inside the instrument marks the central safety grounding point for the instrument CAUTION General Safety Hazard This instrument should only be used for the purpose and in the manner described i...

Страница 6: ...es renseignements spécifiques MISE EN GARDE Surface chaude Ne pas toucher Toucher à certaines parties de l instrument sans protection ou sans les outils appropriés pourrait entraîner des dommages aux pièces ou à l instrument Pictogramme technicien Toutes les opérations portant ce symbole doivent être effectuées uniquement par du personnel de maintenance qualifié Mise à la terre Ce symbole à l inté...

Страница 7: ...1 Connecting Power 42 3 3 1 2 Connecting Analog Inputs Option 42 3 3 1 3 Connecting Analog Outputs 43 3 3 1 4 Current Loop Analog Outputs Option 41 Setup 44 3 3 1 5 Connecting the Status Outputs 46 3 3 1 6 Connecting the Control Inputs 47 3 3 1 7 Concentration Alarm Relay Option 61 Standard Configuration 48 3 3 1 8 Concentration Alarm Relay Option 61 Air Products Configuration 50 3 3 1 9 Connectin...

Страница 8: ...L 97 5 4 3 3 AUTO Range Mode AUTO 99 5 4 4 Range Units 101 5 4 5 Dilution Ratio Option 102 5 5 SETUP Æ PASS Password Protection 103 5 6 SETUP Æ CLK Setting the Internal Time of Day Clock and Adjusting Speed 106 5 6 1 1 Setting the Internal Clock s Time and Day 106 5 6 1 2 Adjusting the Internal Clock s Speed 106 5 7 SETUP ÆComm Communications Ports 108 5 7 1 ID Machine Identification 108 5 7 2 INE...

Страница 9: ... 151 7 1 DAS Structure 152 7 1 1 DAS Data Channels 152 7 1 2 Default DAS Channels 153 7 1 3 Viewing DAS Channels and Individual Records 156 7 1 4 Editing DAS Channels 157 7 1 4 1 Editing DAS Data Channel Names 158 7 1 5 Editing DAS Triggering Events 159 7 1 6 Editing DAS Parameters 160 7 1 7 Sample Period and Report Period 163 7 1 8 Number of Records 165 7 1 9 RS 232 Report Function 166 7 1 9 1 Th...

Страница 10: ...1T GFC7001TM Electronic Subsystems 203 9 6 1 Dark Calibration Test 203 9 6 2 Pressure Calibration 204 9 6 3 Flow Calibration 205 9 7 Calibration of Optional Sensors 206 9 7 1 O2 Sensor Calibration 206 9 7 1 1 O2 Pneumatics Connections 206 9 7 1 2 Set O2 Span Gas Concentration 206 9 7 1 3 Activate O2 Sensor Stability Function 208 9 7 1 4 O2 ZERO SPAN CALIBRATION 209 9 7 2 CO2 Sensor Calibration Pro...

Страница 11: ...ay Board Status LEDs 245 12 2 Gas Flow Problems 247 12 2 1 GFC7001T GFC7001TM Internal Gas Flow Diagrams 248 12 2 2 Typical Sample Gas Flow Problems 251 12 2 2 1 Flow is Zero 251 12 2 2 2 Low Flow 251 12 2 2 3 High Flow 252 12 2 2 4 Displayed Flow Warnings 252 12 2 2 5 Actual Flow Does Not Match Displayed Flow 252 12 3 Calibration Problems 252 12 3 1 Miscalibrated 252 12 3 2 Non Repeatable Zero an...

Страница 12: ...al Assistance 274 13 THEORY OF OPERATION 275 13 1 Measurement Method 275 13 1 1 Beer s Law 275 13 2 Measurement Fundamentals 276 13 2 1 Gas Filter Correlation 277 13 2 1 1 The GFC Wheel 277 13 2 1 2 The Measure Reference Ratio 278 13 2 1 3 Summary Interference Rejection 280 13 3 Flow Rate Control 281 13 3 1 1 Critical Flow Orifice 281 13 3 2 Particulate Filter 282 13 3 3 Pneumatic Sensors 283 13 3...

Страница 13: ...mon Myths About ESD Damage 303 14 4 Basic Principles of Static Control 304 14 4 1 General Rules 304 14 4 2 Basic anti ESD Procedures for Analyzer Repair and Maintenance 305 14 4 2 1 Working at the Instrument Rack 306 14 4 2 2 Working at an Anti ESD Work Bench 306 14 4 2 3 Transferring Components from Rack to Bench and Back 306 14 4 2 4 Opening Shipments from Teledyne Customer Service 307 14 4 2 5 ...

Страница 14: ...gnal Levels Using an Ammeter 125 Figure 5 6 Alternative Setup Using 250Ω Resistor for Checking Current Output Signal Levels 127 Figure 5 7 DIAG Analog Inputs Option Configuration Menu 131 Figure 6 1 COM1 2 Communication Modes Setup 139 Figure 6 2 COMM Port Baud Rate 140 Figure 6 3 COMM COM1 Test Port 141 Figure 6 4 COMM LAN Internet Manual Configuration 144 Figure 6 5 COMM LAN Internet Automatic C...

Страница 15: ...t Fundamentals 277 Figure 13 2 GFC Wheel 277 Figure 13 3 Measurement Fundamentals with GFC Wheel 278 Figure 13 4 Affect of CO in the Sample on CO MEAS CO REF 279 Figure 13 5 Effects of Interfering Gas on CO MEAS CO REF 280 Figure 13 6 Chopped IR Signal 280 Figure 13 7 Internal Pneumatic Flow Basic Configuration 281 Figure 13 8 Flow Control Assembly Critical Flow Orifice 282 Figure 13 9 Electronic ...

Страница 16: ...le 5 2 Password Levels 103 Table 5 3 Variable Names VARS 109 Table 5 4 Diagnostic Mode DIAG Functions 111 Table 5 5 DIAG Analog I O Functions 115 Table 5 6 Analog Output Voltage Ranges 117 Table 5 7 Voltage Tolerances for the TEST CHANNEL Calibration 123 Table 5 8 Current Loop Output Check 127 Table 5 9 Test Channels Functions available on the GFC7001T GFC7001TM s Analog Output 133 Table 5 10 CO C...

Страница 17: ...ntrol Devices 259 Table 12 9 Opto Pickup Board Nominal Output Frequencies 260 Table 12 10 Analog Output Test Function Nominal Values Voltage Outputs 263 Table 12 11 Analog Output Test Function Nominal Values Voltage Outputs 264 Table 12 12 Status Outputs Check 264 Table 13 1 Absorption Path Lengths for GFC7001T and GFC7001TM 276 Table 13 2 Sync DEMOD Sample and Hold Circuits 290 Table 13 3 Sync De...

Страница 18: ...Table of ContentsTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments xviii This page intentionally left blank ...

Страница 19: ...Part I General Information Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments xix PART I GENERAL INFORMATION ...

Страница 20: ...Part I General Information Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments xx This page intentionally left blank ...

Страница 21: ...The analyzer passes the IR beam through a spinning wheel made up of two separate chambers one containing a high concentration of CO known as the reference and the other containing a neutral gas known as the measure The concentration of CO in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature an...

Страница 22: ...mprehensive internal data logging with programmable averaging periods Remote operation when used with TAI s APICOM software GFC7001T FEATURES Ranges 0 1 ppm to 0 1000 ppm user selectable 14 meter path length for sensitivity GFC7001TM FEATURES Ranges 0 1 ppm Max 0 5000 ppm user selectable 2 5 meter path length for dynamic range 1 3 GFC7001T GFC7001TM DOCUMENTATION In addition to this operation manu...

Страница 23: ...ible with carrying strap Option 29 N A 23 Rack mount for external pump pack no slides N A Carrying Strap Handle Side mounted strap for hand carrying analyzer 29 Extends from flat position to accommodate hand for carrying Recesses to 9mm 3 8 dimension for storage Can be used with rack mount brackets Option 21 Cannot be used with rack mount slides N A CAUTION GENERAL SAFETY HAZARD A fully loaded GFC...

Страница 24: ...S 232 Shielded straight through DB 9F to DB 25M cable about 1 8 m long Used to interface with older computers or code activated switches with DB 25 serial connectors Section 3 3 1 9 and 6 3 60B RS 232 Shielded straight through DB 9F to DB 9F cable of about 1 8 m length Sections 3 3 1 9 and 6 3 60C Ethernet Patch cable 2 meters long used for Internet and LAN communications Sections 3 3 1 9 and 6 5 ...

Страница 25: ...ervice for activation N A N A Second Language Switch activates an alternate set of display messages in a language other than the instrument s default language Call Customer Service for a specially programmed Disk on Module containing the second language N A N A Dilution Ratio Option allows the user to compensate for diluted sample gas such as in continuous emission monitoring CEM where the quality...

Страница 26: ...IntroductionTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 26 This page intentionally left blank ...

Страница 27: ...7001TM 0 2 ppm Zero Drift 24 hours 2 GFC7001T 0 1 ppm GFC7001TM 0 5 ppm Span Drift 24 hours 2 GFC7001T 0 5 of reading GFC7001TM 0 5ppm Lag Time1 10 seconds Rise Fall Time 1 60 seconds to 95 Linearity GFC7001T 1 of full scale5 GFC7001TM 0 3000 ppm 1 full scale 3000 5000 ppm 2 full scale Precision GFC7001T The greater of 0 5 of reading or 0 2ppm GFC7001TM The greater of 1 0 of reading or 1ppm Sample...

Страница 28: ... At constant temperature and pressure Table 2 2 O2 Sensor Option Specifications Parameter Description Ranges 0 1 to 0 100 user selectable Dual ranges and auto ranging supported Zero Noise 1 0 02 O2 Lower Detectable Limit 2 0 04 O2 Zero Drift 24 hours 3 0 02 O2 Zero Drift 7 days 0 05 O2 Span Noise 1 0 05 O2 Span Drift 7 days 0 1 O2 Accuracy intrinsic error 0 1 O2 Linearity 0 1 O2 Temp Coefficient 0...

Страница 29: ...s Compensation ON Under the designation the analyzer may be operated with or without the following options Rack mount with slides Rack mount without slides ears only Zero span valve options Option 50A Sample Cal valves or Option 50B Sample Cal valves with span shutoff flow control Internal zero span IZS option with either Option 51A Sample Cal valves or Option 51C Sample Cal valves with span shuto...

Страница 30: ...e Directive North American cNEMKO Canada CAN CSA C22 2 No 61010 1 04 NEMKO CCL US UL No 61010 1 2nd Edition 2 3 2 EMC EN 61326 1 IEC 61326 1 Class A Emissions Industrial Immunity EN 55011 CISPR 11 Group 1 Class A Emissions FCC 47 CFR Part 15B Class A Emissions CE 2004 108 EC Electromagnetic Compatibility Directive 2 3 3 OTHER TYPE CERTIFICATIONS MCERTS Sira MC 050069 04 For additional certificatio...

Страница 31: ... discharges too small to be felt by the human nervous system Failure to use ESD protection when working with electronic assemblies will void the instrument warranty See A Primer on Electro Static Discharge in this manual for more information on preventing ESD damage CAUTION Do not operate this instrument until you ve removed dust plugs from SAMPLE and EXHAUST ports on the rear panel Note TAI recom...

Страница 32: ...sides of the instrument one per side towards the rear Sliding the cover backwards until it clears the analyzer s front bezel and Lifting the cover straight up 2 Inspect the interior of the instrument to make sure all circuit boards and other components are in good shape and properly seated 3 Check the connectors of the various internal wiring harnesses and pneumatic hoses to make sure they are fir...

Страница 33: ...ws the analyzer s front panel layout followed by a close up of the display screen in Figure 3 2 which is described in Table 3 2 The two USB ports on the front panel are provided for the connection of peripheral devices Plug in mouse not included to be used as an alternative to the thouchscreen interface Thumb drive not included to download updates to instruction software contact TAI Customer Servi...

Страница 34: ...ndicate the Sample Calibration and Fault states also on the screen is the gas concentration field Conc which displays real time readouts for the primary gas and for the secondary gas if installed The display screen also shows what mode the analyzer is currently in as well as messages and data Param Along the bottom of the screen is a row of touch control buttons only those that are currently appli...

Страница 35: ...rnings exist Conc Displays the actual concentration of the sample gas currently being measured by the analyzer in the currently selected units of measure Mode Displays the name of the analyzer s current operating mode Param Displays a variety of informational messages such as warning messages operational data test function values and response messages during interactive tasks Control Buttons Displ...

Страница 36: ...igure 3 3 Display Touch Control Screen Mapped to Menu Charts Note The menu charts in this manual contain condensed representations of the analyzer s display during the various operations being described These menu charts are not intended to be exact visual representations of the actual display ...

Страница 37: ...tting StartedTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 37 3 2 2 REAR PANEL Figure 3 4 Rear Panel Layout Table 3 3 provides a description of each component on the rear panel ...

Страница 38: ...ed span option Call factory for details ZERO AIR Internal Zero Air On units with zero span shutoff valve options installed but no internal zero air scrubber attach a gas line to the source of zero air here RX TX LEDs indicate receive RX and transmit TX activity on the when blinking COM 2 Serial communications port for RS 232 or RS 485 Sections 3 3 1 9 5 7 3 6 RS 232 Serial communications port for ...

Страница 39: ...Getting StartedTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 39 Figure 3 5 Internal Layout GFC7001T ...

Страница 40: ...Getting StartedTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 40 Figure 3 6 shows the GFC7001TM internal layout Figure 3 6 Internal Layout GFC7001TM ...

Страница 41: ...ge Gas Pressure Regulator Bench Temperature Thermistor Sample Chamber Pressure Sensor s Sample Gas Outlet fitting Sample Gas Flow Sensor Sync Demod PCA Housing Opto Pickup PCA GFC Heater Figure 3 7 Optical Bench Layout shorter bench GFC7001TM shown 3 3 CONNECTIONS AND SETUP This section presents the electrical Section 3 3 1 and pneumatic Section 3 3 2 connections for setup and preparing for instru...

Страница 42: ...ower connection must have functioning ground connection Do not defeat the ground wire on power plug Turn off analyzer power before disconnecting or connecting electrical subassemblies Do not operate with cover off CAUTION GENERAL SAFETY HAZARD The GFC7001T GFC7001TM Analyzer can be configured for both 100 130 V and 210 240 V at either 47 Hz or 63 Hz To avoid damage to your analyzer make sure that ...

Страница 43: ...h a connector on the back panel of the instrument The standard configuration for these outputs is mVDC An optional current loop output is available for each When the instrument is in its default configuration channels A1 and A2 output a signal that is proportional to the CO concentration of the sample gas Either can be used for connecting the analog output signal to a chart recorder or for interfa...

Страница 44: ... output to a current signal with 0 20 mA output current The outputs can be scaled to any set of limits within that 0 20 mA range However most current loop applications call for either 2 20 mA or 4 20 mA range Figure 3 10 provides installation instructions and illustrates a sample combination of one current output and two voltage outputs configuration Following Figure 3 10 are instructions for conv...

Страница 45: ...cated in the top center of the front panel Remove the screws fastening the top cover to the unit both sides Slide the cover back and lift straight up 4 Remove the screw holding the current loop option to the motherboard 5 Disconnect the current loop option PCA from the appropriate connector on the motherboard see Figure 3 10 6 Each connector J19 and J23 requires two shunts Place one shunt on the t...

Страница 46: ...ble at D ATTENTION COULD DAMAGE INSTRUMENT AND VOID WARRANTY Most PLC s have internal provisions for limiting the current that the input will draw from an external device When connecting to a unit that does not have this feature an external dropping resistor must be used to limit the current through the transistor output to less than 50 mA At 50 mA the transistor will drop approximately 1 2V from ...

Страница 47: ...STIC mode 7 CO2 CAL If this analyzer is equipped with an optional CO2 sensor this Output is ON when that sensor is in calibration mode Otherwise this output is unused 8 O2 CAL If this analyzer is equipped with an optional O2 sensor this Output is ON when that sensor is in calibration mode Otherwise this output is unused D EMITTER BUS The emitters of the transistors on pins 1 8 are bussed together ...

Страница 48: ... range for zero or span calibrations This only applies when the range mode is either DUAL or AUTO The mode field of the display will read HI CAL R D E F SPARE Digital Ground The ground level from the analyzer s internal DC power supplies same as chassis ground U External Power input Input pin for 5 VDC required to activate pins A F 5 VDC output Internally generated 5V DC power To activate inputs A...

Страница 49: ...Alarm 3 Relay is associated with the Concentration Alarm 2 set point in the software Alarm 2 Relay CO Alarm 1 xxx PPM Alarm 3 Relay CO2 Alarm 2 xxx PPM Alarm 2 Relay CO Alarm 1 xxx PPM Alarm 3 Relay CO2 Alarm 2 xxx PPM The Alarm 2 Relay will be turned on any time the concentration set point is exceeded will return to its normal state when the concentration value goes back below the concentration s...

Страница 50: ...gh range status AL3 is for zero calibration status AL4 is not used The AL1 relay is energized when the system is okay and de energized when the system has a fault The AL2 relay is energized when the high auto range is in use and and AL3 relays energize when the the instrument is in zero calibration mode Also in the Air Products configuration an additional control input is available on this instrum...

Страница 51: ...on is installed the COM2 port cannot be used for anything other than Multidrop communication For configuration see 6 6 RS 232 CONNECTION For RS 232 communications with data terminal equipment DTE or with data communication equipment DCE connect either a DB9 female to DB9 female cable TAI part number WR000077 or a DB9 female to DB25 male cable Option 60A Section 1 4 as applicable from the analyzer ...

Страница 52: ...n pin 2 and transmit data on pin 3 DCE devices receive data on pin 3 and transmit data on pin 2 Figure 3 14 Rear Panel Connector Pin Outs for RS 232 Mode The signals from these two connectors are routed from the motherboard via a wiring harness to two 10 pin connectors on the CPU card J11 COM1 and J12 COM2 Figure 3 15 ...

Страница 53: ...e analyzer is set up to emulate a DCE or modem with Pin 3 of the DB 9 connector designated for receiving data and Pin 2 designated for sending data RS 232 COM1 RS 232 fixed DB 9 male connector Baud rate 115200 bits per second baud Data Bits 8 data bits with 1 stop bit Parity None COM2 RS 232 configurable to RS 485 DB 9 female connector Baud rate 19200 bits per second baud Data Bits 8 data bits wit...

Страница 54: ...er to Section 14 for more information on preventing ESD damage In each instrument with the Multidrop option there is a shunt jumpering two pins on the serial Multidrop and LVDS printed circuit assembly PCA as shown in Figure 3 16 This shunt must be removed from all instruments except that designated as last in the multidrop chain which must remain terminated This requires powering off and opening ...

Страница 55: ...32 port to the first analyzer s RS232 port then from the first analyzer s COM2 port to the second analyzer s RS232 port from the second analyzer s COM2 port to the third analyzer s RS232 port etc connecting in this fashion up to eight analyzers subject to the distance limitations of the RS 232 standard 6 On the rear panel of each analyzer adjust the DCE DTE switch so that the green and the red LED...

Страница 56: ...ton below the digit to be changed c Press select ENTER to accept the new ID for that instrument 8 Next in the SETUP MORE COMM COM1 menu do not use the COM2 menu for multidrop edit the COM1 MODE parameter as follows press select EDIT and set only QUIET MODE COMPUTER MODE and MULTIDROP MODE to ON Do not change any other settings 9 Press select ENTER to accept the changed settings and ensure that COM...

Страница 57: ...tion about the gases required for accurate calibration it also illustrates the pneumatic layouts for the analyzer in its basic configuration and with options Before making the pneumatic connections carefully note the following cautionary and special messages CAUTION GENERAL SAFETY HAZARD CARBON MONOXIDE CO IS A TOXIC GAS Do not vent calibration gas and sample gas into enclosed areas Obtain a Mater...

Страница 58: ...essure effects These vents should be at least 0 2m long no more than 2m long vented outside the shelter or immediate area surrounding the instrument Dust Plugs Remove dust plugs from rear panel exhaust and supply line fittings before powering on operating instrument These plugs should be kept for reuse in the event of future storage or shipping to prevent debris from entering the pneumatics IMPORT...

Страница 59: ...IONS FOR BASIC CONFIGURATION Figure 3 18 Pneumatic Connections Basic Configuration Using Bottled Span Gas Figure 3 19 Pneumatic Connections Basic Configuration Using Gas Dilution Calibrator SAMPLE GAS SOURCE Attach a sample inlet line to the SAMPLE inlet port The sample input line should not be more than 2 meters long ...

Страница 60: ...ON GAS SOURCES The source of calibration gas is also attached to the SAMPLE inlet but only when a calibration operation is actually being performed The calibration gases should be available to the analyzer at the same pressure as the sample gas and with the same flow rate 800 cm3 min EXHAUST OUTLET Attach an exhaust line to the analyzer s EXHAUST outlet fitting The exhaust line should be PTEF tubi...

Страница 61: ...location of gas inlets Figure 3 21 Pneumatic Connections Option 50A Zero Span Calibration Valves SAMPLE GAS SOURCE Attach a sample inlet line to the sample inlet port The SAMPLE input line should not be more than 2 meters long Maximum pressure of any gas at the sample inlet should not exceed 1 5 in hg above ambient pressure and ideally should equal ambient atmospheric pressure Flow rate should mee...

Страница 62: ...ending on the ultimate sample or calibration gas source pressure a needle valve restrictor critical orifice or combination there should be deployed to achieve this Do not directly apply significant pressure to the inlet of the unit under any circumstances as damage and or personal injury may result EXHAUST OUTLET Attach an exhaust line to the analyzer s EXHAUST outlet fitting The exhaust line shou...

Страница 63: ...SAMPLE inlet Zero Span Open to IZS inlet ZERO CAL Sample Cal Open to ZERO SPAN valve Zero Span Open to IZS inlet SPAN CAL Sample Cal Open to ZERO SPAN valve Zero Span Open to PRESSURE SPAN inlet PTEF tubing minimum O D 1 4 10 meters long max Vented outside the analyzer s enclosure 3 3 2 5 PNEUMATIC LAYOUT FOR INTERNAL ZERO SPAN VALVE OPTION Figure 3 23 Internal Pneumatic Flow Zero Span Shutoff Val...

Страница 64: ...NS FOR ZERO SCRUBBER PRESSURIZED SPAN OPTION Figure 3 24 Pneumatic Connections Zero Scrubber Pressurized Span Calibration Valves Opt 50E SAMPLE GAS SOURCE Attach a sample inlet line to the sample inlet port The SAMPLE input line should not be more than 2 meters long Maximum pressure of any gas at the sample inlet should not exceed 1 5 in hg above ambient pressure and ideally should equal ambient a...

Страница 65: ...just enough to drive the flow to the proper value range If a pressurized source is used both the zero air supply and sample gas line MUST be vented in order to ensure that the gases input do not exceed the maximum inlet pressure of the analyzer as well as to prevent back diffusion and pressure effects These vents should be At least 0 2m long No more than 2m long and Vented outside the shelter or i...

Страница 66: ...nternal ZERO AIR scrubber Shutoff Valve Closed SPAN CAL Sample Cal Open to ZERO SPAN valve Zero Span Open to SHUTOFF valve Shutoff Valve Open to PRESSURE SPAN inlet 3 3 2 8 PNEUMATIC CONNECTIONS FOR ZERO SCRUBBER AMBIENT SPAN OPTION Option 50H is operationally and pneumatically similar to Option 50A described earlier except that the zero air is generated by an internal zero air scrubber This means...

Страница 67: ...SPAN GAS Attach a gas line from the source of calibration gas e g a TAI s T700E Dynamic Dilution Calibrator to the SPAN inlet ZERO AIR Zero air is supplied internally via a zero air scrubber that draws ambient air through the IZS inlet INLET PRESSURE RATING CONSIDERATION This instrument has no significant internal restriction other than the flow control device and pressure sensor shown in Figure 3...

Страница 68: ...he exhaust line should be PTEF tubing minimum O D A maximum of 10 meters long Vented outside the analyzer s enclosure 3 3 2 9 PNEUMATIC LAYOUT FOR ZERO SCRUBBER AMBIENT SPAN OPTION Figure 3 27 Internal Pneumatic Flow OPT 50H Zero Scrubber Ambient Span Table 3 11 Zero Span Valve Operating States for Option 50H MODE VALVE CONDITION SAMPLE Normal State Sample Cal Open to SAMPLE inlet Zero Span Open t...

Страница 69: ...ed that you use a span gas with a CO concentration equal to 80 90 of the measurement range for your application EXAMPLE If the application is to measure between 0 ppm and 500 ppb an appropriate span gas concentration would be 400 450 ppb CO in N2 Cylinders of calibrated CO gas traceable to NIST Standard Reference Material specifications also referred to as SRMs or EPA protocol calibration gases ar...

Страница 70: ... on the instrument The exhaust fan should start immediately The display will briefly show a momentary splash screen of the TAI logo and other information during the initialization process while the CPU loads the operating system the firmware and the configuration data at the start of initialization The analyzer should automatically switch to Sample Mode after completing the boot up sequence and st...

Страница 71: ...mote zero calibration failed while the dynamic zero feature was set to turned on CONFIG INITIALIZED Configuration was reset to factory defaults or was erased DATA INITIALIZED DAS data storage was erased PHOTO TEMP WARNING Photometer temperature outside of warning limits specified by PHOTO_TEMP_SET variable REAR BOARD NOT DET Motherboard was not detected during power up RELAY BOARD WARN CPU is unab...

Страница 72: ...SO2 ALARM2 WARN 4 SO2 Alarm limit 2 has been triggered 4 1 Only appears when the optional O2 sensor is installed 2 Only appears when the optional internal zero span IZS option is installed 3 Only appears when the optional CO2 sensor is installed 4 Only Appears when the optional gas concentration alarms are installed 3 4 3 FUNCTIONAL CHECKS After the analyzer s components have warmed up for at leas...

Страница 73: ...calibration This will allow you to compare your calibration results to the factory calibration as listed on the Final Test and Validation Data Sheet If both available DAS parameters for a specific gas type are being reported via the instruments analog outputs e g CONC1 and CONC2 when the DUAL range mode is activated separate calibrations should be carried out for each parameter Use the LOW button ...

Страница 74: ... a more detailed discussion of this topic see Section 13 2 1 3 3 4 4 2 INITIAL CALIBRATION PROCEDURE The following procedure assumes that The instrument DOES NOT have any of the available calibration valve or gas inlet options installed Cal gas will be supplied through the SAMPLE gas inlet on the back of the analyzer see Figure 3 4 The pneumatic setup matches that described in Section 3 3 2 1 VERI...

Страница 75: ... X RANGE CONTROL MENU MODE SET UNIT DIL EXIT SETUP X X RANGE CONTROL MENU MODE SET UNIT DIL EXIT Verify that the MODE is set for SNGL If it is not press SINGL ENTR Press EXIT as needed to return to SAMPLE mode Verify that the RANGE is set for 50 0 If it is not toggle each numeric button until the proper range is set then press ENTR Verify that the UNIT is set for PPM If it is not press PPM ENTR DI...

Страница 76: ... T300 T300M CO Analyzer Teledyne Analytical Instruments 76 SET CO SPAN GAS CONCENTRATION Set the expected CO pan gas concentration This should be 80 90 of range of concentration range for which the analyzer s analog output range is set ...

Страница 77: ...Getting StartedTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 77 ZERO SPAN CALIBRATION To perform the zero span calibration procedure press ...

Страница 78: ...Getting StartedTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 78 Figure 3 28 Zero Span Calibration Procedure ...

Страница 79: ...tional O2 sensor 3 4 4 4 CO2 SENSOR CALIBRATION PROCEDURE If your GFC7001T GFC7001TM is equipped with the optional CO2 sensor this sensor should be calibrated during installation of the instrument See Section 9 7 2 for instructions Refer to any addenda that may accompany this instrument for custom configuration such as an optional CO2 sensor Note Once you have completed the above set up procedures...

Страница 80: ...Getting StartedTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 80 This page intentionally left blank ...

Страница 81: ...Part II Opeerating InstructionsTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 81 PART II OPERATING INSTRUCTIONS ...

Страница 82: ...Part II Opeerating InstructionsTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 82 This page intentionally left blank ...

Страница 83: ...ing to an allowable value the ENTR button will re appear The GFC7001T GFC7001TM software has a variety of operating modes Most commonly the analyzer will be operating in Sample Mode In this mode a continuous read out of the CO concentration can be viewed on the front panel and output as an analog voltage from rear panel terminals calibrations can be performed and TEST functions and WARNING message...

Страница 84: ...ation initiated manually by the user SPAN CAL R 1 Unit is performing SPAN calibration initiated remotely through the COM ports or digital control inputs ZERO CAL A 1 Unit is performing ZERO calibration procedure initiated automatically by the AUTOCAL feature ZERO CAL M 1 Unit is performing ZERO calibration procedure initiated manually by the user ZERO CAL R 1 Unit is performing ZERO calibration pr...

Страница 85: ... in Hg per 300 m gain in altitude A variety of factors such as air conditioning and passing storms can cause changes in the absolute atmospheric pressure Table 4 2 Test Functions Defined PARAMETER DISPLAY TITLE UNITS MEANING Stability STABIL PPB 3 PPM UGM3 MGM Standard deviation of CO concentration readings Data points are recorded every ten seconds using the last 25 data points This function can ...

Страница 86: ... temperature of the O2 sensor measurement cell Photo detector Temp Control Voltage PHT DRIVE mV The drive voltage being supplied to the thermoelectric coolers of the IR photo detector by the sync demod Board Slope SLOPE The sensitivity of the instrument as calculated during the last calibration activity Offset OFFSET The overall offset of the instrument as calculated during the last calibration ac...

Страница 87: ...onfiguration or erased DATA INITIALIZED DAS data storage was erased O2 CELL TEMP WARN 2 O2 sensor cell temperature outside of warning limits PHOTO TEMP WARNING The temperature of the IR photo detector is outside the specified limits REAR BOARD NOT DET The CPU is unable to communicate with the motherboard RELAY BOARD WARN The firmware is unable to communicate with the relay board SAMPLE FLOW WARN T...

Страница 88: ...e SAMPLE mode display will also include CALZ and CALS buttons Pressing either of these buttons also puts the instrument into calibration mode The CALZ button is used to initiate a calibration of the analyzer s zero point using internally generated zero air The CALS button is used to calibrate the span point of the analyzer s current reporting range using span gas For more information concerning ca...

Страница 89: ...PRIMARY SETUP MENU The areas accessible under the SETUP mode are shown in Table 4 4 and Secondary Setup Menu SETUP MORE Table 4 5 Table 4 4 Primary Setup Mode Features and Functions MODE OR FEATURE CONTROL BUTTON DESCRIPTION MANUAL SECTION Analyzer Configuration CFG Lists button hardware and software configuration information 5 Auto Cal Feature ACAL Used to set up and operate the AutoCal feature O...

Страница 90: ...essing the EXIT button ignores the new setting 5 8 System Diagnostic Features and Analog Output Configuration DIAG Used to access a variety of functions that are used to configure test or diagnose problems with a variety of the analyzer s basic systems Most notably the menus used to configure the output signals generated by the instruments Analog outputs are located here 5 9 Alarm Limit Configurat...

Страница 91: ...trument or software features or installed options may also be listed here Use this information to identify the software and hardware installed in your GFC7001T GFC7001TM Analyzer when contacting customer service To access the configuration table press SETUP PRIMARY SETUP MENU CFG DAS RNGE PASS CLK MORE EXIT SETUP T300 CO Analyzer PREV NEXT EXIT Press EXIT at any time to return to the SETUP menu Pr...

Страница 92: ...n the Section 9 4 of this manual along with all other information related to calibrating the GFC7001T GFC7001TM Analyzer 5 3 SETUP ÆDAS INTERNAL DATA ACQUISITION SYSTEM Use the SETUP DAS menu to capture and record data Refer to Section 0 for configuration and operation details 5 4 SETUP Æ RNGE ANALOG OUTPUT REPORTING RANGE CONFIGURATION Use the SETUP RNGE menu to configure output reporting ranges ...

Страница 93: ...ic configuration the A1 and A2 channels output a signal that is proportional to the CO concentration of the sample gas Several modes are available which allow them to operate independently or be slaved together See Section 5 4 3 EXAMPLE A1 OUTPUT Output Signal 0 5 VDC representing 0 1000 ppm concentration values A2 OUTPUT Output Signal 0 10 VDC representing 0 500 ppm concentration values Output A3...

Страница 94: ... range relevant to the specific application Only this REPORTING RANGE of the analog outputs is scaled the physical range of the analyzer and the readings displayed on the front panel remain unaltered Note Neither the DAS values stored in the CPU s memory nor the concentration values reported on the front panel are affected by the settings chosen for the reporting range s of the instrument 5 4 3 RE...

Страница 95: ...Instruments 95 Upper span limit setting for the individual range modes are shared Resetting the span limit in one mode also resets the span limit for the corresponding range in the other modes as follows SNGL DUAL AUTO Range ÅÆ Range1 ÅÆ Low Range Range2 ÅÆ High Range ...

Страница 96: ...A1 and A2 are slaved together and set to the same reporting range limits e g 500 0 ppb The span limit of this reporting range can be set to any value within the physical range of the analyzer Although both outputs share the same concentration reporting range the electronic signal ranges of the analog outputs may still be configured for different values e g 0 5 VDC 0 10 VDC etc see Section 5 9 3 1 ...

Страница 97: ...not have to be configured that way For example The low range can be set for a span of 0 1000 ppm while the high range is set for 0 500 ppm In DUAL range mode the RANGE test function displayed on the front panel will be replaced by two separate functions RANGE1 The range setting for the A1 output RANGE2 The range setting for the A2 output To select the DUAL range mode press following buttonstroke s...

Страница 98: ...uments 98 IMPORTANT IMPACT ON READINGS OR DATA In DUAL range mode the LOW and HIGH ranges have separate slopes and offsets for computing CO concentrations The two ranges must be independently calibrated To set the upper range limit for each independent reporting range press ...

Страница 99: ...CO2 concentration falls below 75 of the low range span In AUTO Range Mode the instrument reports the same data in the same range on both the A1 and A2 outputs and automatically switches both outputs between ranges as described above Also the RANGE test function displayed on the front panel will be replaced by two separate functions RANGE1 The LOW range setting for all analog outputs RANGE2 The HIG...

Страница 100: ...SetupTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 100 ...

Страница 101: ...be recalibrated after every change in reporting units IMPORTANT IMPACT ON READINGS OR DATA Concentrations displayed in mg m3 and ug m3 use 0 C and 760 mmHg for Standard Temperature and Pressure STP Consult your local regulations for the STP used by your agency Example US EPA uses 25 o C as the reference temperature Once the Units of Measurement have been changed from volumetric ppb or ppm to mass ...

Страница 102: ... it Using the dilution ratio option is a 4 step process 1 Select the appropriate units of measure see Section 5 4 4 2 Select the reporting range mode and set the reporting range upper limit see Section 5 4 3 Ensure that the upper span limit entered for the reporting range is the maximum expected concentration of the UNDILUTED gas 3 Set the dilution factor as a gain e g a value of 20 means 20 parts...

Страница 103: ...ill prompt the user for a password anytime a password protected function e g SETUP is selected This allows normal operation of the instrument but requires the password 101 to access to the menus under SETUP When PASSWORD is disabled SETUP OFF any operator can enter the Primary Setup SETUP and Secondary Setup SETUP MORE menus Whether PASSWORD is enabled or disabled a password default 818 is require...

Страница 104: ...4 If the password feature is enabled then when entering either Calibration or Setup Mode the default password displayed will be 000 and the new password must be input Example If all passwords are enabled the following control button sequence would be required to enter the SETUP menu ...

Страница 105: ...strument still prompts for a password when entering the VARS and DIAG menus even if passwords are disabled It will display the default password 818 upon entering these menus The user only has to press ENTR to access the password protected menus but does not have to enter the required number code ...

Страница 106: ...the automatic calibration ACAL sequence feature time of day TEST function and time stamps on for the DAS feature and most COMM port messages To set the clock s time and day press 5 6 1 2 ADJUSTING THE INTERNAL CLOCK S SPEED In order to compensate for CPU clocks which run faster or slower you can adjust a variable called CLOCK_ADJ to speed up or slow down the clock by a fixed amount every day The C...

Страница 107: ...SetupTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 107 ...

Страница 108: ...e 5 2 until the Machine ID Parameter field displays the desired identifier SETUP X X COMMUNICATIONS MENU ID INET COM1 COM2 EXIT SETUP X MACHINE ID 300 ID 0 3 0 0 ENTR EXIT Toggle to cycle through the available character set 0 9 ENTR accepts the new settings EXIT ignores the new settings Figure 5 2 COMM Machine ID The ID can be any 4 digit number and can also be used to identify analyzers in any nu...

Страница 109: ...number of significant digits to the right of the decimal point display of concentration and stability values AUTO 1 2 3 4 AUTO 2 DYN_ZERO 1 Dynamic zero automatically adjusts offset and slope of the CO response when performing a zero point calibration during an AutoCal see Section 9 4 ON OFF OFF 3 DYN_SPAN 1 Dynamic span automatically adjusts the offsets and slopes of the CO response when performi...

Страница 110: ...ting SETUP X X 2 DYN_ZERO OFF PREV NEXT JUMP EDIT PRNT EXIT SETUP X X 3 DYN_SPAN OFF PREV NEXT JUMP EDIT PRNT EXIT SETUP X X DAS_HOLD_OFF 15 0 Minutes 1 5 0 ENTR EXIT Toggle these buttons to set the iDAS HOLDOFF time period in minutes MAX 20 minutes Toggle this button to turn the Dynamic Span calibration feature ON OFF SETUP X X 1 CONC_PRECISION AUTO PREV NEXT JUMP EDIT PRNT EXIT SETUP X X CONC_PR...

Страница 111: ...tment and calibration of the voltage signals associated with each output as well as calibration of the analog to digital converter circuitry on the motherboard DIAG ANALOG I O CONFIGURATI ON 5 9 3 ELECTRICAL TEST When activated the analyzer performs an electrical test which generates a voltage intended to simulate the measure and reference outputs of the SYNC DEMOD board to verify the signal handl...

Страница 112: ...SetupTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 112 To access the DIAG functions press the following buttons ...

Страница 113: ...ns of the analyzer Refer to Appendix A 4 for a full list of the parameters available for review under this menu IMPORTANT IMPACT ON READINGS OR DATA Any changes of signal I O settings will remain in effect only until the signal I O menu is exited Exceptions are the ozone generator override and the flow sensor calibration which remain as entered when exiting Access the SIGNAL I O test mode from the...

Страница 114: ...ection 12 5 8 2 Access the Analog Output Step Test from the DIAG Menu as follows 5 9 3 ANALOG I O CONFIGURATION The GFC7001T GFC7001TM Analyzer comes equipped with four analog outputs The first two outputs A1 A2 carry analog signals that represent the currently measured concentration of CO see Section 5 4 1 The third output A3 is only active if the analyzer is equipped with one of the optional 2nd...

Страница 115: ...em input of a DC offset to let the user manually adjust the output level AUTO CAL Enables Disables the AOUT CALIBRATED feature CALIBRATED Performs the same calibration as AOUT CALIBRATED but on this one channel only CONC_OUT_2 A2 Same as for CONC_OUT_1 but for analog channel A2 CONC_OUT_3 A3 Same as for CONC_OUT_1 but for analog channel A3 but only if either the optional O2 or CO2 sensors are inst...

Страница 116: ...SetupTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 116 To access the ANALOG I O CONFIGURATION submenu press Figure 5 3 Accessing the Analog I O Configuration Submenus ...

Страница 117: ... OUTPUT 0 1V 0 100 mVDC 5 mVDC 105 mVDC 1V 0 1 VDC 0 05 VDC 1 05 VDC 5V 0 5 VDC 0 25 VDC 5 25 VDC 10V 0 10 VDC 0 5 VDC 10 5 VDC The default offset for all VDC ranges is 0 5 VDC CURR 0 20 mA 0 mA 20 mA While these are the physical limits of the current loop modules typical applications use 2 20 or 4 20 mA for the lower and upper limits Please specify desired range when ordering this option The defa...

Страница 118: ...SetupTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 118 ...

Страница 119: ... to any input or recording device e g datalogger Manual calibration should be used for the 0 1V range or in cases where the outputs must be closely matched to the characteristics of the recording device Manual calibration requires the AUTOCAL feature to be disabled Automatic calibration can be performed via the CAL button located inside The AOUTS CALIBRATION submenu By default the analyzer is conf...

Страница 120: ... Analyzer Teledyne Analytical Instruments 120 5 9 3 4 AUTOMATIC CALIBRATION OF THE ANALOG OUTPUTS To calibrate the outputs as a group with the AOUTS CALIBRATION command select the ANALOG I O CONFIGURATION submenu see Figure 5 3 then press ...

Страница 121: ...performing this procedure make sure that the AUTO CAL for each analog output is enabled See Section 5 9 3 3 IMPORTANT IMPACT ON READINGS OR DATA Manual calibration should be used for any analog output set for a 0 1V output range or in cases where the outputs must be closely matched to the characteristics of the recording device ...

Страница 122: ...edyne Analytical Instruments 122 5 9 3 5 INDIVIDUAL CALIBRATION OF THE ANALOG OUTPUTS To use the AUTO CAL feature to initiate an automatic calibration for an individual analog output select the ANALOG I O CONFIGURATION submenu see Figure 5 3 then press ...

Страница 123: ...ion is performed with a voltmeter connected across the output terminals and by changing the actual output signal level using the front panel buttons in 100 10 or 1 count increments See Figure 3 9 for pin assignments and diagram of the analog output connector V DC Gnd Figure 5 4 Setup for Checking Calibrating DCV Analog Output Signal Levels Table 5 7 Voltage Tolerances for the TEST CHANNEL Calibrat...

Страница 124: ...edyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 124 To adjust the signal levels of an analog output channel manually select the ANALOG I O CONFIGURATION submenu see Figure 5 3 then press ...

Страница 125: ...uctions in Section 5 9 3 1 select CURR from the list of options on the Output Range menu Adjusting the signal zero and span levels of the current loop output is done by raising or lowering the voltage output of the D to A converter circuitry on the analyzer s motherboard This raises or lowers the signal level produced by the current loop option circuitry The software allows this adjustment to be m...

Страница 126: ...edyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 126 To adjust the zero and span signal levels of the current outputs select the ANALOG I O CONFIGURATION submenu see Figure 5 3 then press ...

Страница 127: ...nd diagram of the analog output connector This allows the use of a voltmeter connected across the resistor to measure converter output as VDC or mVDC V DC Gnd Figure 5 6 Alternative Setup Using 250Ω Resistor for Checking Current Output Signal Levels In this case follow the procedure above but adjust the output for the following values Table 5 8 Current Loop Output Check FS Voltage across Resistor ...

Страница 128: ...E ON OFF In its default configuration a 5 over range is available on each of the GFC7001T GFC7001TM Analyzer s analog outputs This over range can be disabled if your recording device is sensitive to excess voltage or current To turn the over range feature on or off select the ANALOG I O CONFIGURATION submenu see Figure 5 3 then press ...

Страница 129: ... zero signal is significantly different from the baseline of the recorder in order to record slightly negative readings from noise around the zero point This can be achieved in the GFC7001T GFC7001TM by defining a zero offset a small voltage e g 10 of span To add a zero offset to a specific analog output channel select the ANALOG I O CONFIGURATION submenu see Figure 5 3 then press ...

Страница 130: ... the submenu to conduct a calibration of the GFC7001T GFC7001TM Analyzer s analog inputs This calibration should only be necessary after major repair such as a replacement of CPU motherboard or power supplies To perform an analog input calibration select the ANALOG I O CONFIGURATION submenu see Figure 5 3 then press ...

Страница 131: ...AG AIO XIN1 1 00 0 00 V OFF SET SET EDIT EXIT Press SET to scroll to the first channel Continue pressing SET to view each of 8 channels Pressing ENTR records the new setting and returns to the previous menu Pressing EXIT ignores the new setting and returns to the previous menu Press EDIT at any channel to to change Gain Offset Units and whether to display the channel in the Test functions OFF ON D...

Страница 132: ...pensate the final CO concentration calculation for changes in atmospheric pressure and are stored in the CPU s memory as the test function PRES also viewable via the front panel For details see Section 9 6 2 5 9 7 FLOW CALIBRATION The flow calibration allows the user to adjust the values of the sample flow rates as they are displayed on the front panel and reported through COMM ports to match the ...

Страница 133: ...sensor located inside the sample chamber 0 Hg 40 Hg SAMPLE FLOW Sample mass flow rate as measured by the flow rate sensor in the sample gas stream 0 cm3 m 1000 cm 3 m SAMPLE TEMP The temperature of the gas inside the sample chamber 0 C 70 C BENCH TEMP Optical bench temperature 0 C 70 C WHEEL TEMP GFC Wheel temperature 0 C 70 C O2 CELL TEMP 1 The current temperature of the O2 sensor measurement cel...

Страница 134: ...s flow controller TEST channel parameter DIAG TEST CHANNEL CO MEASURE PREV NEXT ENTR EXIT EXIT discards the new setting ENTR accepts the new setting SETUP X X PRIMARY SETUP MENU CFG DAS RNGE PASS CLK MORE EXIT SETUP X X SECONDARY SETUP MENU COMM VARS DIAG EXIT SETUP X X ENTER PASSWORD 818 8 1 8 ENTR EXIT Toggle these buttons to enter the correct PASSWORD 5 10 SETUP ÆMORE Æ ALRM OPTION USING THE GA...

Страница 135: ...atch the new range unit setting Note To prevent the concentration alarms from activating during span calibration operations ensure that the CAL or CALS button is pressed prior to introducing span gas into the analyzer 5 10 1 SETTING THE GFC7001T CONCENTRATION ALARM LIMITS To enable either of the CO concentration alarms and set the limit points press SETUP X X CO ALRM 2 OFF ON ENTR EXIT SETUP X X P...

Страница 136: ...SetupTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 136 This page intentionally left blank ...

Страница 137: ...lways considered DCE devices The difference between the two is the pin assignment of the Data Receive and Data Transmit functions DTE devices receive data on pin 2 and transmit data on pin 3 DCE devices receive data on pin 3 and transmit data on pin 2 To allow the analyzer to be used with terminals DTE modems DCE and computers which can be either a switch mounted below the serial ports on the rear...

Страница 138: ...n enabled the serial port requires a password before it will respond see Section 5 5 If not logged on the only active command is the request for the help screen MULTIDROP PROTOCOL 32 Multidrop protocol allows a multi instrument configuration on a single communications channel Multidrop requires the use of instrument IDs ENABLE MODEM 64 Enables to send a modem initialization string at power up Asse...

Страница 139: ...NET COM1 COM2 EXIT SETUP X X COM1 MODE 32 SET EDIT EXIT SETUP X X COM1 QUIET MODE OFF NEXT OFF ENTR EXIT Select which COM port to configure The sum of the mode IDs of the selected modes is displayed here Figure 6 1 COM1 2 Communication Modes Setup 6 2 2 COM PORT BAUD RATE To select the baud rate of either COM Port go to SETUP MORE COMM and select either COM1 or COM2 as follows use COM2 to view mat...

Страница 140: ...TESTING The serial ports can be tested for correct connection and output in the COMM menu This test sends a string of 256 w characters to the selected COM port While the test is running the red LED labeled TX for that COM port on the instrument s rear panel analyzer should flicker To initiate the test access the COMMUNICATIONS Menu SETUP MORE COMM then press ...

Страница 141: ...en the USB port is enabled COM2 port cannot be used except for multidrop A Code Activated Switch CAS can also be used on either port to connect typically between 2 and 16 send receive instruments host computer s printers data loggers analyzers monitors calibrators etc into one communications hub Contact TAI Sales for more information on CAS systems To assist in properly connecting the serial ports...

Страница 142: ... operating status Table 6 2 Ethernet Status Indicators LED FUNCTION amber link On when connection to the LAN is valid green activity Flickers during any activity on the LAN The analyzer is shipped with DHCP enabled by default This allows the instrument to be connected to a network or router with a DHCP server The instrument will automatically be assigned an IP address by the DHCP server Section 6 ...

Страница 143: ...LAN to access the Internet SUBNET MASK 0 0 0 0 Can only be edited when DHCP is set to OFF Also a string of four packets of 1 to 3 numbers each e g 255 255 252 0 that identifies the LAN to which the device is connected All addressable devices and computers on a LAN must have the same subnet mask Any transmissions sent to devices with different subnets are assumed to be outside of the LAN and are ro...

Страница 144: ...PORT 3000 SET EDIT EXIT The PORT number must remain at 3000 Do not change this setting unless instructed to by Teledyne Instruments Customer Service personnel SETUP X X GATEWAY IP 0 00 000 000 CH CH DEL ENTR EXIT Cursor location is indicated by brackets SETUP X X INITIALIZING INET 0 INITIALIZING INET 100 SETUP X X INITIALIZATI0N SUCCEEDED SETUP X X INITIALIZATION FAILED SETUP X X COMMUNICATIONS ME...

Страница 145: ...ications Menu SETUP MORE COMM and follow the setup sequence as shown in Figure 6 5 Figure 6 5 COMM LAN Internet Automatic Configuration DHCP 6 5 3 CHANGING THE ANALYZER S HOSTNAME The HOSTNAME is the name by which the analyzer appears on your network The default name for all Teledyne s GFC7001T analyzers is GFC7001T To change this ...

Страница 146: ...sor one character to the left CH Moves the cursor one character to the right INS Inserts a character before the cursor location DEL Deletes a character at the cursor location Press this key to cycle through the range of numerals and characters available for insertion 0 9 A Z space _ ENTR Accepts the new setting and returns to the previous menu EXIT Ignores the new setting and returns to the previo...

Страница 147: ...ftware Downloads www teledyne api com software 2 Run the installer file TAPIVCPInstaller exe 3 Connect the USB cable between the USB ports on your personal computer and your analyzer The USB cable should be a Type A Type B cable commonly used as a USB printer cable 4 Determine the Windows XP Com Port number that was automatically assigned to the USB connection Start Control Panel System Hardware D...

Страница 148: ...F ERROR CHECKING ON XON XOFF HANDSHAKE OFF HARDWARE HANDSHAKE OFF HARDWARE FIFO ON COMMAND PROMPT OFF 6 Next configure your communications software such as APIcom Use the COM port determined in Step 4 and the baud rate set in Step 5 The figures below show how these parameters would be configured in the Instrument Properties window in APIcom when configuring a new instrument See the APIcom manual P...

Страница 149: ...munications Setup and OperationTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 149 Using the USB port disallows use of the rear panel COM2 port except for multidrop communication ...

Страница 150: ...Communications Setup and OperationTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 150 This page intentionally left blank ...

Страница 151: ...r data analysis documentation and archival in electronic format To support the DAS functionality TAI offers APICOM a program that provides a visual interface for remote or local setup configuration and data retrieval of the DAS The APICOM manual which is included with the program contains a more detailed description of the DAS structure and configuration which is briefly described in this manual T...

Страница 152: ...e g timer every time a calibration is performed etc See Section 7 1 5 The specific PARAMETERS and TRIGGER events that describe an individual record are defined in a construct called a DATA CHANNEL see Section 7 1 1 Each data channel is related one or more parameters with a specific trigger event and various other operational characteristics related to the records being made e g the channels name n...

Страница 153: ...ANNELS A set of default Data Channels has been included in the analyzer s software for logging CO concentration and certain predictive diagnostic data These default channels include but are not limited to CONC Samples CO concentration at one minute intervals and stores an average every hour with a time and date stamp Readings during calibration and calibration hold off are not included in the data...

Страница 154: ...dix A 5 lists the firmware specific DAS configuration in plain text format This text file can either be loaded into APICOM and then modified and uploaded to the instrument or can be copied and pasted into a terminal program to be sent to the analyzer IMPORTANT IMPACT ON READINGS OR DATA Sending a DAS configuration to the analyzer through its COM ports will replace the existing configuration and wi...

Страница 155: ...000 01 00 No of Records 360 RS 232 Report OFF Channel Enabled ON Cal Hold OFF OFF Parameters 2 SMPLFLW AVG 1 OFF SMPLPRS AVG 1 OFF Name STBZERO Event EXITZR Report Period N A No of Records 200 RS 232 Report OFF Channel Enabled ON Cal Hold OFF OFF Parameters 3 RATIO INST 3 OFF STABIL INST 2 OFF DETMES INST 1 OFF Name CONC Event ATIMER Report Period 000 01 00 No of Records 800 RS 232 Report OFF Chan...

Страница 156: ...rd or channel Moves the VIEW forward 10 records FUNCTION Buttons only appear when applicable DAS VIEW Control Button Functions SETUP X X PRIMARY SETUP MENU CFG DAS RNGE PASS CLK MORE EXIT SETUP X X DATA ACQUISITION VIEW EDIT EXIT SETUP X X CONC DATA AVAILABLE NEXT VIEW EXIT SETUP X X 101 21 00 CONC1 39 0 PPM PV10 PREV NEXT NX10 PRM PRM EXIT SETUP X X 101 22 00 CONC1 39 1 PPM PV10 PREV EXIT SETUP X...

Страница 157: ...ng list of button strokes shows how to edit the DAS using the front panel When editing the data channels the top line of the display indicates some of the configuration parameters For example the display line 0 CONC ATIMER 1 800 Translates to the following configuration Channel No 0 NAME CONC TRIGGER EVENT ATIMER PARAMETERS One parameter is included in this channel EVENT This channel is set up to ...

Страница 158: ...MTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 158 7 1 4 1 EDITING DAS DATA CHANNEL NAMES To edit the name of a DAS data channel follow the instruction shown in Section 7 1 4 1 then press ...

Страница 159: ...CHG exit zero exit span slope change Sampling at the end of irregularly occurring calibrations or when the response slope changes These triggering events create instantaneous data points e g for the new slope and offset concentration response values at the end of a calibration Zero and slope values are valuable to monitor response drift and to document when the instrument was calibrated WARNINGS S...

Страница 160: ...eaters placed around the analyzer pressures and flows of the pneumatic subsystem and other diagnostic measurements as well as calibration data such as stability slope and offset Most data parameters have associated measurement units such as mV ppb cm min etc although some parameters have no units e g SLOPE With the exception of concentration readings none of these units of measure can be changed T...

Страница 161: ...ON Stores the average and the number of samples in used to compute the value of the parameter This property is only useful when the AVG sample mode is used Note that the number of samples is the same for all parameters in one channel and needs to be specified only for one of the parameters in that channel Users can specify up to 50 parameters per data channel the GFC7001T GFC7001TM provides about ...

Страница 162: ...62 To modify add or delete a parameter follow the instruction shown in Section 7 1 4 then press Note When the STORE NUM SAMPLES feature is turned on the instrument will store how many measurements were used to compute the AVG SDEV MIN or MAX value but not the actual measurements themselves ...

Страница 163: ...t be accessed from the standard DAS front panel menu but is available via the instrument s communication ports by using APICOM or the analyzer s standard serial data protocol REPORT PERIOD Sets how often the sample readings stored in volatile memory are processed e g average minimum or maximum are calculated and the results stored permanently in the instrument s Disk on Module as well as transmitt...

Страница 164: ...ple modes see Section 6 1 5 3 the settings for the Sample Period and the Report Period determine the number of data points used each time the parameter is calculated stored and reported to the COMM ports The actual sample readings are not stored past the end of the chosen report period When the STORE NUM SAMPLES feature is turned on the instrument will store the number of measurements used to comp...

Страница 165: ...meters max 50 per channel The DAS will check the amount of available data space and prevent the user from specifying too many records at any given point If for example the DAS memory space can accommodate 375 more data records the ENTR button will disappear when trying to specify more than that number of records This check for memory space may also cause the upload of a DAS configuration with APIC...

Страница 166: ...c COMM port reporting follow the instruction shown in Section 7 1 4 then press 7 1 9 1 THE COMPACT REPORT FEATURE When enabled this option avoids unnecessary line breaks on all RS 232 reports Instead of reporting each parameter in one channel on a separate line up to five parameters are reported in one line The COMPACT DATA REPORT generally cannot be accessed from the standard DAS front panel menu...

Страница 167: ...condition the DAS ignores this setting and begins recording data as defined by the REPORT PERIOD setting The STARTING DATE generally cannot be accessed from the standard DAS front panel menu but is available via the instrument s communication ports by using APICOM or the analyzer s standard serial data protocol 7 1 10 DISABLING ENABLING DATA CHANNELS Data channels can be temporarily disabled which...

Страница 168: ...measurements may not be certain e g while the instrument is warming up In this case the length of time that the HOLDOFF feature is active is determined by the value of the internal variable VARS DAS_HOLDOFF To set the length of the DAS_HOLDOFF period go to the SETUP MORE VARS menu Section 5 8 and EDIT the 0 DAS_HOLD_OFF parameter To enable or disable the HOLDOFF feature for an individual channel f...

Страница 169: ... the instrument and can be stored on a computer for later review alteration or documentation and archival 7 2 1 DAS CONFIGURATION VIA APICOM Figure 7 2 shows examples of APICOM s main interface which emulates the look and functionality of the instrument s actual front panel Figure 7 3 shows an example of APICOM being used to remotely configure the DAS feature The APICOM user manual Teledyne P N 03...

Страница 170: ...ne offline and without interrupting DAS data collection it is conveniently uploaded to the instrument and can be stored on a computer for later review alteration or documentation and archival Refer to the APICOM manual for details on these procedures The APICOM user manual Teledyne P N 039450000 is included in the APICOM installation file which can be downloaded at http www teledyne api com manual...

Страница 171: ...ps are best started by 1 Downloading the default DAS configuration 2 Getting familiar with its command structure and syntax conventions 3 Altering a copy of the original file offline 4 Uploading the new configuration into the analyzer IMPORTANT IMPACT ON READINGS OR DATA Whereas the editing adding and deleting of DAS channels and parameters of one channel through the front panel control buttons ca...

Страница 172: ...DAS and APICOMTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 172 This page intentionally left blank ...

Страница 173: ... to access and control any of Teledyne s main line of ambient and stack gas instruments from a remote connection through direct cable modem or Ethernet Running APICOM a user can Establish a link from a remote location to the GFC7001T through direct cable connection via RS 232 modem or Ethernet View the instrument s front panel and remotely access all functions that could be accessed manually on th...

Страница 174: ...ocation ESC escape Erases the entire command line ID CR This command prints a complete list of available commands along with the definitions of their functionality to the display device of the terminal or computer being used The ID number of the analyzer is only necessary if multiple analyzers are on the same communications line such as the multi drop setup 8 2 1 2 COMMAND SYNTAX Commands are not ...

Страница 175: ...variable values such as temperature set points time intervals warning limits voltages etc They consist of an optional plus or minus sign followed by zero or more digits an optional decimal point and zero or more digits At least one digit must appear before or after the decimal point Scientific notation is not permitted For example 1 0 1234 5678 0 1 1 are all valid floating point numbers Boolean ex...

Страница 176: ...to 366 the hour of the day HH as a number from 00 to 23 and the minute MM as a number from 00 to 59 ID is the analyzer ID a number with 1 to 4 digits MESSAGE is the message content that may contain warning messages test measurements variable values etc CRLF is a carriage return line feed pair which terminates the message The uniform nature of the output messages makes it easy for a host computer t...

Страница 177: ... is completed the appropriate setup command line for your modem can be entered into the analyzer The default setting for this feature is AT Y0 D0 H0 I0 S0 2 B0 N6 M0 E0 Q1 W0 This string can be altered to match your modem s initialization and can be up to 100 characters long To change this setting press ...

Страница 178: ...Remote OperationTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 178 To initialize the modem press ...

Страница 179: ...automatically logoff which can also be achieved with the LOGOFF command Three unsuccessful attempts to log on with an incorrect password will cause subsequent logins to be disabled for 1 hour even if the correct password is used If not logged on the only active command is the request for the help screen The following messages will be returned at logon LOGON SUCCESSFUL Correct password given LOGON ...

Страница 180: ...Remote OperationTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 180 This page intentionally left blank ...

Страница 181: ...ctions and do not reflect actual physical locations of equipment and fitting location or orientation Contact your regional EPA or other appropriate governing agency for more detailed recommendations 9 1 CALIBRATION PREPARATIONS The calibration procedures in this section assume that the range mode analog range and units of measure have already been selected for the analyzer If this has not been don...

Страница 182: ...l scale of the desired measurement range It is recommended that the span gas used have a concentration equal to 80 90 of the full measurement range If Span Gas is sourced directly from a calibrated pressurized tank the gas mixture should be CO mixed with Zero Air or N2 at the required ratio For oxygen measurements using the optional O2 sensor we recommend a reference gas of 21 O2 in N2 For quick c...

Страница 183: ...eadings can be recorded For electronic data recording the GFC7001T GFC7001TM provides an internal data acquisition system DAS which is described in detail in Section 0 APICOM a remote control program is also provided as a convenient and powerful tool for data handling download storage quick check and plotting see Section 7 2 1 9 2 MANUAL CALIBRATION IMPORTANT IMPACT ON READINGS OR DATA ZERO SPAN C...

Страница 184: ...ne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 184 Figure 9 1 Pneumatic Connections Basic Configuration Using Bottled Span Gas Figure 9 2 Pneumatic Connections Basic Configuration Using Gas Dilution Calibrator ...

Страница 185: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 185 9 2 2 PERFORMING A BASIC MANUAL CALIBRATION CHECK ...

Страница 186: ...be calibrated separately IMPORTANT IMPACT ON READINGS OR DATA If the ZERO or SPAN buttons are not displayed during zero or span calibration the measured concentration value during this time is out of the range allowed for a reliable calibration Refer to Section 11 for troubleshooting tips 9 2 3 1 SETTING THE EXPECTED SPAN GAS CONCENTRATION Note When setting expected concentration values consider i...

Страница 187: ...Instruments 187 IMPORTANT IMPACT ON READINGS OR DATA For this Initial Calibration it is important to independently verify the PRECISE CO Concentration Value of the SPAN gas If the source of the Span Gas is from a Calibrated Bottle use the exact concentration value printed on the bottle ...

Страница 188: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 188 9 2 3 2 ZERO SPAN POINT CALIBRATION PROCEDURE ...

Страница 189: ...hods discussed in the previous sections of this section The primary differences are On instruments with Z S valve options zero air and span gas is supplied to the analyzer through other gas inlets besides the sample gas inlet The zero and span calibration operations are initiated directly and independently with dedicated buttons CALZ CALS 9 3 1 SETUP FOR CALIBRATION USING VALVE OPTIONS Each of the...

Страница 190: ...API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 190 Figure 9 4 Pneumatic Connections Option 50B Ambient Zero Pressurized Span Calibration Valves Figure 9 5 Pneumatic Connections Option 50H Zero Span Calibration Valves ...

Страница 191: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 191 Figure 9 6 Pneumatic Connections Option 50E Zero Span Calibration Valves ...

Страница 192: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 192 9 3 2 MANUAL CALIBRATION CHECKS WITH VALVE OPTIONS INSTALLED ...

Страница 193: ...AUTO range modes a step will appear for selecting which range is to be calibrated LOW or HIGH IMPORTANT IMPACT ON READINGS OR DATA Each of these two ranges MUST be calibrated separately 9 3 3 1 SETTING THE EXPECTED SPAN GAS CONCENTRATION Note When setting expected concentration values consider impurities in your span gas The expected CO span gas concentration should be 80 of the reporting range of...

Страница 194: ...bration it is important to independently verify the PRECISE CO Concentration Value of the SPAN gas If the source of the Span Gas is from a Calibrated Bottle use the exact concentration value printed on the bottle 9 3 3 2 ZERO SPAN POINT CALIBRATION PROCEDURE The zero and cal operations are initiated directly and independently with dedicated buttons CALZ CALS ...

Страница 195: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 195 ...

Страница 196: ...RATE is enabled the GFC7001T GFC7001TM will not recalibrate the analyzer until the contact is opened At this point the new calibration values will be recorded before the instrument returns to Sample Mode If the AutoCal attribute CALIBRATE is disabled the instrument will return to Sample Mode leaving the instrument s internal calibration variables unchanged 9 4 AUTOMATIC ZERO SPAN CAL CHECK AUTOCAL...

Страница 197: ...f calibration DURATION Number of minutes the sequence operates This parameter needs to be set such that there is enough time for the concentration signal to stabilize The STB parameter shows if the analyzer response is stable at the end of the calibration This parameter is logged with calibration values in the DAS CALIBRATE Enable to do a calibration Disable to do a cal check only This setting mus...

Страница 198: ...nd of Sequence IMPORTANT IMPACT ON READINGS OR DATA The programmed STARTING_TIME must be a minimum of 5 minutes later than the real time clock for setting real time clock See Section 5 6 4 Avoid setting two or more sequences at the same time of the day Any new sequence that is initiated whether from a timer the COM ports or the contact closure inputs will override any sequence that is in progress ...

Страница 199: ...ME SAMPLE RANGE 50 0 PPM CO XX XX TST TST CAL CALZ CZLS SETUP SETUP X X CFG ACAL DAS RNGE PASS CLK MORE EXIT SETUP X X SEQ 1 DISABLED NEXT MODE EXIT SETUP X X SEQ 2 DISABLED PREV NEXT MODE EXIT SETUP X X MODE DISABLED NEXT ENTR EXIT SETUP X X MODE ZERO PREV NEXT ENTR EXIT SETUP X X SEQ 2 ZERO SPAN 1 00 00 PREV NEXT MODE SET EXIT SETUP X X TIMER ENABLE ON SET EDIT EXIT SETUP X X STARTING DATE 01 JA...

Страница 200: ... 15 PM 14 15 CONTINUED FROM PREVIOUS PAGE STARTING DATE CONTINUE NEXT PAGE With DURATION TIME SETUP X X STARTING TIME 14 15 SET SET EDIT EXIT SETUP X X DELTA DAYS 1 SET SET EDIT EXIT SETUP X X DELTA DAYS 1 0 0 2 ENTR EXIT Toggle buttons to set number of days between procedures 1 365 SETUP X X DELTA DAYS 2 SET SET EDIT EXIT SETUP X X DELTA TIME00 00 SET SET EDIT EXIT SETUP X X DELTA TIME 00 00 0 0 ...

Страница 201: ... SEQ 2 ZERO SPAN 2 00 30 PREV NEXT MODE SET EXIT Display show SEQ 2 ZERO SPAN 2 00 30 Sequence Delta Time MODE Delta Days CONTINUED FROM PREVIOUS PAGE DELTA TIME 9 4 1 1 AUTOCAL WITH AUTO OR DUAL REPORTING RANGES MODES SELECTED If the GFC7001T GFC7001TM Analyzer is set for either the Dual or Auto reporting range modes the following three steps will appear at the beginning of the AutoCal setup rout...

Страница 202: ...efer to the Troubleshooting Section 11 Table 9 5 Calibration Data Quality Evaluation FUNCTION MINIMUM VALUE OPTIMUM VALUE MAXIMUM VALUE SLOPE 0 700 1 000 1 300 OFFS 0 500 0 000 0 500 These values should not be significantly different from the values recorded on the Teledyne Final Test and Validation Data Sheet that was shipped with your instrument If they are refer to the troubleshooting Section 1...

Страница 203: ...utine The two offset voltages from the last calibration procedure may be reviewed by the user via the front panel display See also Section 5 9 5 To activate the dark calibration procedure or review the results of a previous calibration press Offset for CO REF signal SAMPLE RANGE 50 0 PPM CO XX XX TST TST CAL SETUP SETUP X X SECONDARY SETUP MENU COMM VARS DIAG EXIT SETUP X X PRIMARY SETUP MENU CFG ...

Страница 204: ...hanges in atmospheric pressure and is stored in the CPU s memory as the test function PRES also viewable via the front panel See also Section 5 9 6 IMPORTANT IMPACT ON READINGS OR DATA This calibration must be performed when the pressure of the sample gas is equal to ambient atmospheric pressure Before performing the following pressure calibration procedure disconnect the sample gas line vent from...

Страница 205: ... front panel and reported through COMM ports to match the actual flow rate measured at the sample inlet This does not change the hardware measurement of the flow sensors only the software calculated values To carry out this adjustment connect an external sufficiently accurate flow meter to the sample inlet see Section 11 3 3 for more details Once the flow meter is attached and is measuring actual ...

Страница 206: ...e O2 Sensor 9 7 1 1 O2 PNEUMATICS CONNECTIONS The pneumatic connections for calibrating are as follows Figure 9 7 O2 Sensor Calibration Set Up O2 SENSOR ZERO GAS TAI recommends using pure N2 when calibration the zero point of your O2 sensor option O2 SENSOR SPAN GAS TAI recommends using 20 8 O2 in N2 when calibration the span point of your O2 sensor option See Table 3 12 9 7 1 2 SET O2 SPAN GAS CO...

Страница 207: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 207 ...

Страница 208: ... Analytical Instruments 208 9 7 1 3 ACTIVATE O2 SENSOR STABILITY FUNCTION To change the stability test function from CO concentration to the O2 sensor output press Note Use the same procedure to reset the STB test function to CO when the O2 calibration procedure is complete ...

Страница 209: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 209 9 7 1 4 O2 ZERO SPAN CALIBRATION To perform the zero span calibration procedure ...

Страница 210: ...are as follows Figure 9 8 CO2 Sensor Calibration Set Up CO2 SENSOR ZERO GAS TAI recommends using pure N2 when calibration the zero point of your CO2 sensor option CO2 SENSOR SPAN GAS TAI recommends using 16 CO2 in N2 when calibration the span point of your CO2 sensor option Table 3 12 is 20 9 7 2 2 SET CO2 SPAN GAS CONCENTRATION Set the expected CO2 span gas concentration This should be equal to t...

Страница 211: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 211 ...

Страница 212: ...Analytical Instruments 212 9 7 2 3 ACTIVATE CO2 SENSOR STABILITY FUNCTION To change the stability test function from CO concentration to the CO2 sensor output press Note Use the same procedure to reset the STB test function to CO when the CO2 calibration procedure is complete ...

Страница 213: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 213 9 7 2 4 CO2 ZERO SPAN CALIBRATION To perform the zero span calibration procedure ...

Страница 214: ...Calibration Procedures Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 214 This page intentionally left blank ...

Страница 215: ...UIDELINES In general calibration is the process of adjusting the gain and offset of the GFC7001T against some recognized standard In this section the term dynamic calibration is used to express a multipoint check against known standards and involves introducing gas samples of known concentration into the instrument in order to adjust the instrument to a predetermined sensitivity and to produce a c...

Страница 216: ...f the calibration gases used must be traceable to NIST SRMs See Table 3 12 10 1 2 CALIBRATION EQUIPMENT SUPPLIES AND EXPENDABLES The measurement of CO in ambient air requires a certain amount of basic sampling equipment and supplemental supplies The Quality Assurance Handbook Section 2 6 contains information about setting up the appropriate systems 10 1 2 1 DATA RECORDING DEVICE Either a strip cha...

Страница 217: ...0 App C para 3 2 3 Obtain air from another source or regenerate Record form Q A Handbook1 Vol II Part 1 App 15 Table A 5 A 6 Revise forms as appropriate Audit equipment Must not be the same as used for calibration Q A Handbook 1 Vol II Part 1 App 15 Sec 4 4 5 4 Locate problem and correct or return to supplier 10 1 3 RECOMMENDED STANDARDS FOR ESTABLISHING TRACEABILITY To assure data of desired qual...

Страница 218: ...2 o F daily fluctuations not greater than 2 o C Check thermograph chart weekly for variations greater than 2 o C 4 o F Mark strip chart for the affected time period Repair or adjust temperature control Sample introduction system No moisture foreign material leaks obstructions sample line connected to manifold Weekly visual inspection Clean repair or replace as needed Recorder Adequate ink paper Le...

Страница 219: ... 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 used as a basis for analyzer zero or span adjustments calibration updates or adjustment of ambient data They are intended as quick convenient checks to be used between ...

Страница 220: ... RS 232 port See Section 9 3 3 3 and Appendix A 6 of this manual for more details 10 2 2 PRECISION CHECK A periodic check is used to assess the data for precision A one point precision check must be carried out at least once every 2 weeks on each analyzer at a CO concentration between 8 0 ppm and 10 0 ppm The analyzer must be operated in its normal sampling mode and the precision test gas must pas...

Страница 221: ...s should conform to those described in Section 9 2 for analyzers with no valve options or with an IZS valve option installed and Section 9 3 for analyzers with Z S options installed 10 4 AUDITING PROCEDURE An audit is an independent assessment of the accuracy of data Independence is achieved by having the audit made by an operator other than the one conducting the routine field measurements and by...

Страница 222: ...check all of the remaining data in the 2 week period 10 4 3 SYSTEM AUDIT VALIDATION A system audit is an on site inspection and review of the quality assurance activities used for the total measurement system sample collection sample analysis data processing etc it is an appraisal of system quality Conduct a system audit at the startup of a new monitoring system and periodically as appropriate as ...

Страница 223: ... function calculates the stability of the CO measurement Plot the analyzer responses versus the corresponding calculated concentrations to obtain a calibration relationship Determine the best fit straight line y mx b determined by the method of least squares After the best fit line has been drawn determine whether the analyzer response is linear To be considered linear no calibration point should ...

Страница 224: ...lity Planning and Standards 2 CFR Title 40 Protection of Environment PART 53 AMBIENT AIR MONITORING REFERENCE AND EQUIVALENT METHODS 53 20 General provisions 53 23 Test procedures 3 CFR Title 40 Protection of Environment PART 50 NATIONAL PRIMARY AND SECONDARY AMBIENT AIR QUALITY STANDARDS Appendix C to Part 50 Measurement Principle and Calibration Procedure for the Measurement of Carbon Monoxide i...

Страница 225: ...EPA Calibration Protocol Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 225 PART III TECHNICAL INFORMATION ...

Страница 226: ...EPA Calibration Protocol Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 226 This page intentionally left blank ...

Страница 227: ...ction 12 of this manual 11 1 MAINTENANCE SCHEDULE Table 11 1 shows a typical maintenance schedule for the analyzer Please note that in certain environments i e dusty very high ambient pollutant levels some maintenance procedures may need to be performed more often than shown Note A Span and Zero Calibration Check see CAL CHECK REQ D Column of Table 10 1 must be performed following certain of the m...

Страница 228: ...MaintenanceTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 228 This page intentionally left blank ...

Страница 229: ...DATE PERFORMED Particulate Filter Replace Weekly or As Needed No Verify Test Functions Record and Analyze Weekly or after any Maintenance or Repair No Perform Flow Check Check Flow Annually No Perform Leak Check Verify Leak Tight Annually or after any Maintenance or Repair No Pneumatic lines Examine and Clean As Needed Yes if cleaned Cleaning Clean As Needed Only if cover removed ...

Страница 230: ...edyne Analytical Instruments 230 Table 11 2 GFC7001T GFC7001TM Test Function Record FUNCTION OPERATING MODE DATE RECORDED STABILITY ZERO CAL CO MEAS ZERO CAL MR RATIO ZERO CAL SPAN CAL PRES SAMPLE PHT DRIVE SAMPLE AFTER WARM UP SLOPE SPAN CAL OFFSET ZERO CAL ...

Страница 231: ...ecreasing Source Aging Detector deteriorating Optics getting dirty or contaminated MR RATIO Zero Cal Increasing Source Aging Detector deteriorating Contaminated zero gas H2O Decreasing Source Aging Detector deteriorating GFC Wheel Leaking Pneumatic Leaks Contaminated zero gas CO Span Cal Increasing Source Aging Pneumatic Leaks instrument sample system Calibration system deteriorating GFC Wheel Lea...

Страница 232: ...ng filter element PTFE retaining ring glass cover and the o ring To change the filter 1 Turn OFF the analyzer to prevent drawing debris into the instrument 2 Open the GFC7001T Analyzer s hinged front panel and unscrew the knurled retaining ring on the filter assembly Figure 11 1 Sample Particulate Filter Assembly 3 Carefully remove the retaining ring PTFE o ring glass filter cover and filter eleme...

Страница 233: ...ime to fully pressurize the instrument through the critical flow orifice Check each fitting with soap bubble solution looking for bubbles Once the fittings have been wetted with soap solution do not re apply vacuum as it will suck soap solution into the instrument and contaminate it Do not exceed 15 psi pressure 5 If the instrument has one of the zero and span valve options the normally closed por...

Страница 234: ...analyzer s flow control assemblies High flows indicate leaks downstream of the Flow Control Assembly 11 3 4 CLEANING THE OPTICAL BENCH The GFC7001T GFC7001TM sensor assembly and optical bench are complex and delicate Disassembly and cleaning is not recommended Please check with the factory before disassembling the optical bench 11 3 5 CLEANING EXTERIOR SURFACES OF THE GFC7001T GFC7001TM If necessa...

Страница 235: ...sense when operating inside a running analyzer 12 1 GENERAL TROUBLESHOOTING The GFC7001T GFC7001TM Carbon Monoxide Analyzer has been designed so that problems can be rapidly detected evaluated and repaired During operation it continuously performs diagnostic tests and provides the ability to evaluate its key operating parameters without disturbing monitoring operations A systematic approach to tro...

Страница 236: ...1 1 FAULT DIAGNOSIS WITH WARNING MESSAGES The most common and or serious instrument failures will result in a warning message being displayed on the front panel Table 12 1 lists warning messages along with their meaning and recommended corrective action It should be noted that if more than two or three warning messages occur at the same time it is often an indication that some fundamental analyzer...

Страница 237: ...ting and ServiceTeledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 237 The analyzer will also alert the user via the Serial I O COM port s To view or clear the various warning messages press ...

Страница 238: ...ow CANNOT DYN ZERO Dynamic Zero operation failed Measured concentration value is too high Concentration offset value to high CONFIG INITIALIZED Configuration and Calibration data reset to original Factory state Failed disk on module User erased data DATA INITIALIZED Data Storage in DAS was erased Failed disk on module User cleared data PHOTO TEMP WARNING PHT DRIVE is 4800 mVDC Failed IR photo dete...

Страница 239: ... LEDs on the sync demod board ARE flashing the cause is most likely a failed IR source Relay board I 2 C bus IR photo detector SYSTEM RESET The computer has rebooted This message occurs at power on If you have not cycled the power on your instrument Failed 5 VDC power Fatal error caused software to restart Loose connector wiring WHEEL TEMP WARNING The filter wheel temperature is controlled at 68 2...

Страница 240: ...n potentiometer on the sync demod board see Section 12 5 7 1 If the value displayed is too low or constantly changing and the CO REF is OK Failed multiplexer on the motherboard Failed sync demod board Loose connector or wiring on sync demod board If the value displayed is too low or constantly changing and the CO REF is bad GFC Wheel stopped or rotation is too slow Failed sync demod board IR sourc...

Страница 241: ... P1 or circuitry Invalid M R ratio see above Bad incorrect span gas concentration due OFFSET Values outside range indicate Contamination of the zero air supply Contaminated or leaking GFC Wheel either chamber Faulty IR photo detector 12 1 3 THE DIAGNOSTIC SIGNAL I O FUNCTION The signal I O diagnostic mode allows access to the digital and analog I O in the analyzer Some of the digital signals can b...

Страница 242: ...ect ONLY until signal I O menu is exited The Analyzer regains control of these signals upon exit See Appendix A 4 for a complete list of the parameters available for review under this menu 12 1 4 STATUS LEDS Several color coded light emitting diodes LEDs are located inside the instrument to assist in determining if the analyzer s CPU I2 C bus and relay board GFC Wheel and the sync demodulator boar...

Страница 243: ...hes when the CPU is running the main program loop After power up approximately 30 to 60 seconds DS5 should flash on and off If characters are written to the front panel display but DS5 does not flash then the program files have become corrupted If after 30 60 seconds neither the DS5 is flashing or no characters have been written to the front panel display then the CPU is bad and must be replaced M...

Страница 244: ...ATED FAILURE S D1 M R Sensor Status Flashes slowly LED is stuck ON or OFF GFC Wheel is not turning M R Sensor on Opto Pickup Board failed Sync Demod Board failed JP 4 Connector Wiring faulty Failed Faulty 5 VDC Power Supply PS1 D2 Segment Sensor Status Flashes quickly LED is stuck ON or OFF GFC Wheel is not turning Segment Sensor on Opto Pickup Board failed Sync Demod Board failed JP 4 Connector W...

Страница 245: ...enu signal I O to identify hardware failures of the relays and switches on the relay see Section 12 1 3 and Appendix D Table 12 4 I2 C Status LED Failure Indications LED FUNCTION FAULT STATUS INDICATED FAILURE S D1 Red I2 C bus Health Watch Dog Circuit Continuously ON or Continuously OFF Failed Halted CPU Faulty Motherboard Touchscreen or Relay Board Faulty Connectors Wiring between Motherboard To...

Страница 246: ... CAL_VALVE N A Sample Cal Valve should audibly change states If not Failed Valve Failed Relay Drive IC on Relay Board Failed Relay Board Faulty 12 VDC Supply PS2 Faulty Connectors Wiring D6 Green Zero Span Gas Valve Option SPAN_VALVE N A Zero Span Valve should audibly change states If not Failed Valve Failed Relay Drive IC on Relay Board Failed Relay Board Faulty 12 VDC Supply PS2 Faulty Connector...

Страница 247: ...e are displayed on the front panel or stored by the DAS With the O2 sensor option installed third gas flow controlled with a critical flow orifice is added but this flow is not measured or reported In general flow problems can be divided into three categories 1 Flow is too high 2 Flow is greater than zero but is too low and or unstable 3 Flow is zero no flow When troubleshooting flow problems it i...

Страница 248: ...del T300 T300M CO Analyzer Teledyne Analytical Instruments 248 12 2 1 GFC7001T GFC7001TM INTERNAL GAS FLOW DIAGRAMS Figure 12 6 GFC7001T GFC7001TM Basic Internal Gas Flow Figure 12 7 Internal Pneumatic Flow OPT 50A Zero Span Valves OPT 50A 50B ...

Страница 249: ...yne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 249 Figure 12 8 Internal Pneumatic Flow OPT 50B Zero Span Shutoff Valves Figure 12 9 Internal Pneumatic Flow OPT 50H Zero Span Valves with Internal Zero Air Scrubber ...

Страница 250: ...API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 250 Figure 12 10 Internal Pneumatic Flow OPT 50E Zero Span Shutoff w Internal Zero Air Scrubber Figure 12 11 GFC7001T GFC7001TM Internal Pneumatics with O2 Sensor Option 65A ...

Страница 251: ... to flow Make sure that the unit is in basic SAMPLE Mode Place a finger over an Exhaust outlet on the rear panel of the instrument If gas is flowing through the analyzer you will feel flow from the Exhaust outlet Gas bottles are not empty or low Valves regulators and gas lines are not clogged or dirty 12 2 2 2 LOW FLOW 1 Check for leaks as described in Section 11 3 2 Repair the leaking fitting lin...

Страница 252: ...le pressure is reading normal but the sample flow is reading low then it is likely that there is an obstruction downstream of the flow sensor 12 2 2 5 ACTUAL FLOW DOES NOT MATCH DISPLAYED FLOW If the actual flow measured does not match the displayed flow but is within the limits of 720 880 cm3 min adjust the calibration of the flow measurement as described in Section 11 3 3 12 3 CALIBRATION PROBLE...

Страница 253: ...matic loop The CO concentration either zero or span now must be constant If readings become quiet the problem is in the external pneumatics supplies for sample gas span gas or zero air 6 If pressurized span gas is being used with a zero span valve option make sure that the venting is adequate 12 3 3 INABILITY TO SPAN NO SPAN BUTTON CALS 1 Confirm that the carbon monoxide span gas source is accurat...

Страница 254: ...the signal should be 1450 mV SAMPLE TEMPERATURE The Sample Temperature should closely track the bench temperature If it does not locate the sensor which is located at the midpoint of the optical bench in a brass fitting Unplug the connector labeled Sample and measure the resistance of the thermistor at room temperature 25 C it should be 30K Ohms at operating temperature 48 C it should be 12K Ohms ...

Страница 255: ...just below the sample temperature sensor on the bench pin 1 is the pointed end It should be approximately 275 ohms 2 Assuming that the I2 C bus is working and that there is no other failure with the relay board the solid state relay K1 on the relay board may have failed Using the WHEEL_HEATER parameter under the signal I O function as described above turn on and off K1 D2 on the relay board should...

Страница 256: ...instrument described in Section 11 3 2 and 11 3 3 2 Detector failure caused by failure of the hermetic seal or over temperature due to poor heat sinking of the detector can to the optical bench In addition to increased noise due to poor signal to noise ratio another indicator of detector failure is a drop in the signal levels of the CO MEASURE signal and CO REFERENCE signal 3 Sync Demod Board fail...

Страница 257: ...e unit is set for 230 VAC and is plugged into 115VAC or 100VAC the sample pump if equipped will not start and the heaters will not come up to temperature If the unit is set for 115 or 100 VAC and is plugged into a 230 VAC circuit the circuit breaker built into the ON OFF Switch on the Front Panel will trip to the OFF position immediately after power is switched on 12 5 2 DC POWER SUPPLY If you hav...

Страница 258: ...tioning of the touchscreen by observing the display when pressing a touchscreen control button Assuming that there are no wiring problems and that the DC power supplies are operating properly if pressing a control button on the display does not change the display any of the following may be the problem The touchscreen controller may be malfunctioning The internal USB bus may be malfunctioning You ...

Страница 259: ...ce drive output can be verified by measuring the voltage at J16 with the IR source disconnected It should be 11 5 0 5 VDC 12 5 7 SENSOR ASSEMBLY 12 5 7 1 SYNC DEMODULATOR ASSEMBLY To verify that the Sync Demodulator Assembly is working follow the procedure below 1 Verify that D1 and D2 are flashing If not check the opto pickup assembly Section 12 5 7 3 and the GFC Wheel drive Section 12 5 7 4 If t...

Страница 260: ...Operation of the opto pickup PCA P N 04088 can be verified with a voltmeter Measure the AC and DC voltage between digital ground on the relay board or touchscreen and TP2 and TP4 on the sync pickup PCA For a working board with the GFC motor spinning they should read 2 4 0 1 VAC and 2 5 0 15 VDC Further confirmation that the pickups and motor are operating properly can be obtained by measuring the ...

Страница 261: ...d resistance of more than 1 5 Ohms but less than 3 5 Ohms If not then the source is bad 2 With the source disconnected energize the analyzer and wait for it to start operating Measure the drive Voltage between pins 1 and 2 on the jack that the source is normally connected to it should be 11 5 0 25 VDC If not then the problem is with the wiring the relay board or the 12V power supply 3 If the drive...

Страница 262: ...otherboard is to use the Signal I O function under the DIAG menu to check the two A D reference voltages and input signals that can be easily measured with a voltmeter 1 Use the Signal I O function see Section 12 1 3 and Appendix A to view the value of REF_4096_MV and REF_GND If both are within 3 mV of nominal 4096 and 0 and are stable 0 5 mV then the basic A D is functioning properly If not then ...

Страница 263: ...00 mV 1 0 5 10 For each of the steps the output should be within 1 of the nominal value listed in the table below except for the 0 step which should be within 0mV 2 mV Make sure you take into account any offset that may have been programmed into channel see Section 5 9 3 9 If one or more of the steps fails to be within these ranges it is likely that there has been a failure of either or both of th...

Страница 264: ...2 mA 0 5V 4 1 2 20 5 6 1 4 7 2 1 8 3 40 9 2 2 3 10 4 2 6 4 60 12 8 3 2 13 6 3 4 5 80 16 4 4 1 16 8 4 2 6 100 20 5 20 5 12 5 8 4 STATUS OUTPUTS The procedure below can be used to test the Status outputs 1 Connect a jumper between the D pin and the V pin on the status output connector 2 Connect a 1000 ohm resistor between the pin and the pin for the status output that is being tested 3 Connect a vol...

Страница 265: ...large 44 pin device on the lower right hand side of the board If this is true removing U57 from its socket will allow the instrument to start up but the measurements will be invalid If the analyzer stops during initialization the front panel display shows a fault or warning message it is likely that the DOM the firmware or the configuration and data files have been corrupted 12 5 10 RS 232 COMMUNI...

Страница 266: ... word length and stop bit settings between modem and analyzer match See Section 8 3 6 Use the RS 232 test function to send w characters to the modem terminal or computer See Section 8 3 7 Get your terminal modem or computer to transmit data to the analyzer holding down the space bar is one way the green LED should flicker as the instrument is receiving data 8 Make sure that the communications soft...

Страница 267: ...lyzer 2 Locate the assembly See Figure 3 6 3 Disconnect the pneumatic connection from the flow assembly and the assembly from the pump if present 4 Remove the fitting and the components as shown in the exploded view below 5 Replace the o rings P N OR0000001 and the sintered filter P N FL0000001 6 If replacing the critical flow orifice itself P N 000941000 make sure that the side with the colored w...

Страница 268: ...s 1 Turn off the analyzer 2 Remove the top cover 3 Open the instrument s hinged front panel 4 Locate the GFC Wheel motor assembly See Figure 3 6 5 Unplug the following electronic components The GFC Wheel housing temperature sensor GFC Wheel heater GFC Wheel motor power supply SAFETY SHIELD SYNCHRONOUS MOTOR SOURCE ASSEMBLY THERMISTOR HEATER Figure 12 15 Opening the GFC Wheel Housing 6 Remove the t...

Страница 269: ...ickup printed circuit assembly Opto Pickup Figure 12 16 Removing the Opto Pickup Assembly 8 Remove the three 3 screws holding the GFC Wheel motor heat sink assembly to the GFC Wheel housing 9 Carefully remove the GFC Wheel motor heat sink assembly from the GFC Wheel housing GFC WHEEL HOUSING Figure 12 17 Removing the GFC Wheel Housing ...

Страница 270: ...ATOR CIRCUIT GAIN CO MEAS 12 6 3 1 CHECKING THE SYNC DEMODULATOR CIRCUIT GAIN The GFC7001T GFC7001TM Analyzers will operate accurately as long as the sync demodulator circuit gain is properly adjusted To determine if this gain factor is correct 1 Make sure that the analyzer is turned on and warmed up 2 Set the analyzer display to show the STABIL or CO STB test function 3 Apply Zero Air to Sample I...

Страница 271: ...the STABIL or CO STB test function 3 Apply Zero Air to Sample Inlet of the analyzer 4 Wait until the stability reading falls below 1 0 ppm 5 Change the analyzer display to show the CO MEAS 6 Remove the Sync Demod Housing Remove the two mounting screws Carefully lift the housing to reveal the sync demod PCA Sync Demod PCA Housing Housing Mounting Screws Optical Bench Figure 12 19 Location of Sync D...

Страница 272: ...ll information collected in Step 1 below must be re entered before the instrument will function correctly Also zero and span calibration should be performed 1 Document all analyzer parameters that may have been changed such as range auto cal analog output serial port and other settings before replacing the DOM 2 Turn off power to the instrument fold down the rear panel by loosening the mounting sc...

Страница 273: ... Span Gas Press the CONC button found under the CAL or CALS buttons of the main SAMPLE display menus to enter the expected CO span concentration See Section 0 for more information Why does the analyzer not respond to span gas There could be something wrong with a span gas tank or a span gas concentration was entered incorrectly or there could be a pneumatic leak Section 12 3 3 addresses these issu...

Страница 274: ...ration checks the IZS option is not permitted as a calibration source in applications following US EPA protocols To achieve highest accuracy it is recommended to use cylinders of calibrated span gases in combination with a zero air source Q What is the averaging time for an GFC7001T GFC7001TM A The default averaging time optimized for ambient pollution monitoring is 150 seconds for stable concentr...

Страница 275: ...nd stores them in memory The microprocessor uses these calibration values the IR absorption measurements made on the sample gas along with data regarding the current temperature and pressure of the gas to calculate a final CO concentration This concentration value and the original information from which it was calculated are stored in one of the unit s internal data acquisition system DAS See Sect...

Страница 276: ...l filled with sample gas The sample cell uses mirrors at each end to reflect the IR beam back and forth through the sample gas a number of times see Figure 13 1 The total length that the reflected light travels is directly related to the intended sensitivity of the instrument The lower the concentration that the instrument is designed to detect the longer the light path must be in order to create ...

Страница 277: ...ILTER CORRELATION Unfortunately water vapor absorbs light at 4 7 µm too To overcome the interfering effects of water vapor the GFC7001T GFC7001TM adds another component to the IR light path called a Gas Filter Correlation GFC Wheel Measurement Cell Pure N2 Reference Cell N2 with CO Figure 13 2 GFC Wheel 13 2 1 1 THE GFC WHEEL A GFC Wheel is a metallic wheel into which two chambers are carved The c...

Страница 278: ...uare wave 13 2 1 2 THE MEASURE REFERENCE RATIO The GFC7001T GFC7001TM determines the amount of CO in the sample chamber by computing the ratio between the peak of the measurement pulse CO MEAS and the peak of the reference pulse CO REF If no gases exist in the sample chamber that absorb light at 4 7μm the high concentration of CO in the gas mixture of the reference cell will attenuate the intensit...

Страница 279: ...ffect of CO in the Sample on CO MEAS CO REF Once the GFC7001T GFC7001TM has computed this ratio a look up table is used with interpolation to linearize the response of the instrument This linearized concentration value is combined with calibration SLOPE and OFFSET values to produce the CO concentration which is then normalized for changes in sample pressure INTERFERENCE AND SIGNAL TO NOISE REJECTI...

Страница 280: ...reject interfering signals from outside this bandwidth improving the signal to noise ratio The IR Signal as the Photo Detector sees it after being chopped by the GFC Wheel S CO REF CO MEAS Figure 13 6 Chopped IR Signal 13 2 1 3 SUMMARY INTERFERENCE REJECTION The basic design of the GFC7001T GFC7001TM rejects most of this interference at a 300 1 ratio The two primary methods used to accomplish this...

Страница 281: ... Basic Configuration 13 3 FLOW RATE CONTROL To maintain a constant flow rate of the sample gas through the instrument the GFC7001T GFC7001TM uses a special flow control assembly located in the exhaust gas line In instruments with the O2 sensor installed a second flow control assembly is located between the O2 sensor assembly and the exhaust port These assemblies consist of A critical flow orifice ...

Страница 282: ...t the downstream exit of the critical flow orifice SPRING O RINGS FILTER CRITICAL FLOW ORIFICE AREA OF LOW PRESSURE AREA OF HIGH PRESSURE Sonic Shockwave Figure 13 8 Flow Control Assembly Critical Flow Orifice The actual flow rate of gas through the orifice volume of gas per unit of time depends on the size and shape of the aperture in the orifice The larger the hole the more the gas molecules mov...

Страница 283: ... and issues commands to a variety of peripheral devices via a separate printed circuit assembly called the motherboard The motherboard is directly mounted to the inside rear panel and collects data performs signal conditioning duties and routes incoming and outgoing signals between the CPU and the analyzer s other major components Data are generated by a gas filter correlation optical bench which ...

Страница 284: ...of Operation Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 284 Various analog voltage and current outputs Several digital I O channels Ethernet Figure 13 9 Electronic Block Diagram ...

Страница 285: ... of non volatile data storage a Disk On Module DOM and an embedded flash chip 13 4 1 1 DISK ON MODULE DOM The DOM is a 44 pin IDE flash drive with a storage capacity up to 128 MB It is used to store the computer s operating system the TAI firmware and most of the operational data generated by the analyzer s internal data acquisition system DAS 13 4 1 2 FLASH CHIP This non volatile embedded flash c...

Страница 286: ...a thermistor also attached to the sample chamber housing WHEEL TEMPERATURE To minimize the effects of temperature variations caused by the near proximity of the IR Source to the GFC Wheel on the gases contained in the wheel it is also raised to a high temperature level Because the IR Source itself is very hot the set point for this heat circuit is 68 C A cartridge heater implanted into the heat sy...

Страница 287: ...e of GFC Wheel Figure 13 11 GFC Light Mask M R SENSOR This emitter detector assembly produces a signal that shines through a portion of the mask that allows light to pass for half of a full revolution of the wheel The resulting light signal tells the analyzer whether the IR beam is shining through the measurement or the reference side of the GFC Wheel SEGMENT SENSOR Light from this emitter detecto...

Страница 288: ... beam is bright the temperature of the detector is high the resistance of the detector is correspondingly low and its output voltage output is low During those times when the IR beam intensity is low or completely blocked by the GFC Wheel mask the temperature of the detector is lowered by the two stage thermo electric cooler increasing the detector s resistance and raising the output voltage 13 4 ...

Страница 289: ...nc Demod Block Diagram 13 4 3 1 SIGNAL SYNCHRONIZATION AND DEMODULATION The signal emitted by the IR photo detector goes through several stages of amplification before it can be accurately demodulated The first is a pre amplification stage that raises the signal to levels readable by the rest of the sync demod board circuitry The second is a variable amplification stage that is adjusted at the fac...

Страница 290: ...ed by the PLD to make the Sample and Hold Circuits capture the signal during the center portions of the detected waveform ignore the rising and falling edges of the detector signal Sample Hold Active Detector Output Sample Hold Inactive Figure 13 14 Sample Hold Timing 13 4 3 2 SYNC DEMOD STATUS LEDS The following two status LEDs located on the sync demod board provide additional diagnostic tools f...

Страница 291: ...D By actuating various switches and relays located on this board the CPU controls the status of other key components The relay board receives instructions in the form of digital signals over the I2 C bus interprets these digital instructions and activates its various switches and relays appropriately 13 4 4 1 HEATER CONTROL The two heaters attached to the sample chamber housing and the GFC Wheel m...

Страница 292: ...yzer s relay board to show the current status on the various control functions performed by the relay board They are listed on Table 13 4 Table 13 4 Relay Board Status LEDs LED COLOR FUNCTION STATUS WHEN LIT STATUS WHEN UNLIT D1 RED Watch Dog Circuit Cycles On Off every 3 seconds under direct control of the analyzer s CPU D2 YELLOW Wheel Heater HEATING NOT HEATING D3 YELLOW Bench Heater HEATING NO...

Страница 293: ...tput PC 104 to I2 C translation temperature sensor signal processing and is a pass through for the RS 232 and RS 485 signals 13 4 5 1 A TO D CONVERSION Analog signals such as the voltages received from the analyzer s various sensors are converted into digital signals that the CPU can understand and manipulate by the analog to digital converter A D Under the control of the CPU this functional block...

Страница 294: ... demodulated IR sensor signals from the sync demodulator board SAMPLE PRESSURE AND FLOW These are analog signals from two sensors that measure the pressure and flow rate of the gas stream at the outlet of the sample chamber This information is used in two ways First the sample pressure is used by the CPU to calculate CO concentration Second the pressure and flow rate are monitored as a test functi...

Страница 295: ...ATION procedures 13 4 5 6 EXTERNAL DIGITAL I O This External Digital I O performs two functions status outputs and control inputs STATUS OUTPUTS Logic Level voltages are output through an optically isolated 8 pin connector located on the rear panel of the analyzer These outputs convey good bad and on off information about certain analyzer conditions They can be used to interface with certain types...

Страница 296: ...uted through the ON OFF Switch located in the lower right corner of the Front Panel A 6 75 Amp circuit breaker is built into the ON OFF Switch The bench and GFC Wheel heaters as well as the GFC Wheel receive AC power via the relay board AC Line power is converted stepped down and converted to DC power by two DC power supplies One supplies 12 VDC for valves and the IR source while a second supply p...

Страница 297: ...Theory of Operation Teledyne API Model T300 T300M CO Analyzer Teledyne Analytical Instruments 297 Figure 13 16 Power Distribution Block Diagram ...

Страница 298: ...ANSMITTER BOARD The LVDS low voltage differential signaling transmitter board converts the parallel display bus to a serialized low voltage differential signal bus in order to transmit the video signal to the LCD interface PCA 13 4 8 2 FRONT PANEL TOUCHSCREEN DISPLAY INTERFACE PCA The front panel touchscreen display interface PCA controls the various functions of the display and touchscreen For dr...

Страница 299: ...that average the output signal over a fixed time period the GFC7001T GFC7001TM averages over a set number of samples where each sample is 0 2 seconds This technique is known as boxcar averaging During operation the software automatically switches between two different length filters based on the conditions at hand Once triggered the short filter remains engaged for a fixed time period to prevent c...

Страница 300: ...ue that is displayed on the instrument front panel display and is stored in memory by the analyzer s DAS system 13 5 4 TEMPERATURE AND PRESSURE COMPENSATION Changes in pressure can have a noticeable effect on the CO concentration calculation To account for this the GFC7001T GFC7001TM software includes a feature which allows the instrument to compensate for the CO calculations based on changes in a...

Страница 301: ...things also make them very susceptible to damage from the discharge of static electricity Controlling electrostatic discharge begins with understanding how electro static charges occur in the first place Static electricity is the result of something called triboelectric charging which happens whenever the atoms of the surface layers of two materials rub against each other As the atoms of the two s...

Страница 302: ...ic device Current flows as the charge moves along the conductive circuitry of the device and the typically very high voltage levels of the charge overheat the delicate traces of the integrated circuits melting them or even vaporizing parts of them When examined by microscope the damage caused by electro static discharge looks a lot like tiny bomb craters littered across the landscape of the compon...

Страница 303: ...l a static discharge of less than 3500 volts Most devices are damaged by discharge levels much lower than that I didn t touch it so there was no electro static discharge Electro Static charges are fields whose lines of force can extend several inches or sometimes even feet away from the surface bearing the charge It still works so there was no damage Sometimes the damaged caused by electro static ...

Страница 304: ...OF STATIC CONTROL It is impossible to stop the creation of instantaneous static electric charges It is not however difficult to prevent those charges from building to dangerous levels or prevent damage due to electro static discharge from occurring 14 4 1 GENERAL RULES Only handle or work on all electronic assemblies at a properly set up ESD station Setting up an ESD safe workstation need not be c...

Страница 305: ...of a plastic that is impregnated with a liquid similar to liquid laundry detergent which very slowly sweats onto the surface of the plastic creating a slightly conductive layer over the surface of the bag While this layer may equalize any charges that occur across the whole bag it does not prevent the build up of static charges If laying on a conductive grounded surface these bags will allow charg...

Страница 306: ...nto the grounded receptacle of the work station before touching any items on the work station and while standing at least a foot or so away This will allow any charges you are carrying to bleed away through the ground connection of the workstation and prevent discharges due to field effects and induction from occurring 2 Pause for a second or two to allow any static charges to bleed away 3 Only op...

Страница 307: ...ipate Connect your wrist strap to ground If you are at the instrument rack hold the bag in one hand while your wrist strap is connected to a ground point If you are at a anti ESD workbench lay the container down on the conductive work surface In either case wait several seconds 7 Open the container 14 4 2 4 OPENING SHIPMENTS FROM TELEDYNE CUSTOMER SERVICE Packing materials such as bubble pack and ...

Страница 308: ...er allow any surface charges on it to dissipate If you are at the instrument rack hold the bag in one hand while your wrist strap is connected to a ground point If you are at an anti ESD workbench lay the container down on the conductive work surface In either case wait several seconds 2 Place the item in the container 3 Seal the container If using a bag fold the end over and fastening it with ant...

Страница 309: ...conductors of the same transmission line accompanied by ionization of the surrounding atmosphere and often by a power loss CE Converter Efficiency the percentage of light energy that is actually converted into electricity CEM Continuous Emission Monitoring Chemical formulas that may be included in this document CO2 carbon dioxide C3H8 propane CH4 methane H2O water vapor HC general abbreviation for...

Страница 310: ...mory DR DOS Digital Research DOS DTE Data Terminal Equipment EEPROM Electrically Erasable Programmable Read Only Memory also referred to as a FLASH chip or drive ESD Electro Static Discharge ETEST Electrical Test Ethernet a standardized IEEE 802 3 computer networking technology for local area networks LANs facilitating communication and sharing resources FEP Fluorinated Ethylene Propylene polymer ...

Страница 311: ...nstitute of Standards and Technology Standard Reference Material PC Personal Computer PCA Printed Circuit Assembly the PCB with electronic components ready to use PC AT Personal Computer Advanced Technology PCB Printed Circuit Board the bare board without electronic component PFA Perfluoroalkoxy an inert polymer one of the polymers that Du Pont markets as Teflon PLC Programmable Logic Controller a...

Страница 312: ...furthest device SAROAD Storage and Retrieval of Aerometric Data SLAMS State and Local Air Monitoring Network Plan SLPM Standard Liters Per Minute of a gas at standard temperature and pressure STP Standard Temperature and Pressure TCP IP Transfer Control Protocol Internet Protocol the standard communications protocol for Ethernet devices TEC Thermal Electric Cooler TPC Temperature Pressure Compensa...

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