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Teledyne 200A User's Manual

1. m _S Ag n o rn _ e FEN a B 21 o Ze SERE LS WUUUUUUUUU TTD na E n x Z4 2 O y N H Ol Lus 4 AR gt nin LVL PO N Pool cag m Eo rel E 7 we E 3 BE 5 lass Az SOLE Table 2 2 1 Removal of Shipping Screw
2. J A j E ONJO El 2 a x Lj P 21 z r4 e a LJ BB E 5 m N 2 BER Lue rop cd E i a X AT T nl JUUUUUUUUI pg py 4 27 A 5 E S a N T a 25 Es I Lu E il e 000000000 E dN31 SN1VIS 5 4 Quvo8 ES vod 4 EEN Drs JANYA 1NOY4 Table 2 2 5 Assembly Layout 2 11 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 2 2 6 Final Test and Calibration Values Test Values ne Units Nominal Range Reference Section RANGE PPB 50 20 000 5 3 4 STABILITY PPB lt 0 2 9 1 1 Table 9 9 1 Zero Gas 9 2 5 SAMP FLW cc min 500 50 9 3 7 Table 9 9 1 OZONE FL cc min 60 90 9 3 6 9 3 7 PMT mV 0 5000 9 3 8 1 Table 9 9 1 AZERO mV 20 150 Table 9 9 1 HVPS V 450 900 con
3. ppl ppb ANGE RA E FULL VA ppl UT I 5 DD is IDRMALIZED PMT VOLTAGE FUR RANGES 0 DO MULTIPLY THE PPB RANGE SETTING BY 2 GET THE xMALIZEI m SETTIN F ANGES 001 20 000 PPB MULTIPLY THE ANGE SETTING n GET THE NORMALIZE MI m SET TIN F INF ATI N JSING THIS FI 1 RY CALIBRATION PROCEDURE Table 9 9 7 Span Calibration Voltage 9 25 PRINTED DOCUMENTS ARE UNCONTROLLED CALE AA 41925 Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 Electric Test ET Procedure 1 adjust ET press SETUP MORE DIAG then scroll to ELEC TEST and press ENTR 2 Scroll the TEST functions until PMT is displayed 3 Adjust R27 until 2000 mV 100 is displayed 4 Press EXIT to return t0 SAMPLE mode Optic Test OT Procedure To adjust OT press SETUP MORE DIAG then scroll to OPTIC TEST and press ENTR Scroll the TEST functions until PMT is displayed Adjust R25 until 2000 mV 100 is displayed Press EXIT to return to SAMPLE mode ee If this procedure does not produce an instrument that will properly span please contact your local distributor or the
4. a 4 El I OS gt vu A E tr un du z aS lt NU 3 p x I eis T m ST gt N lt EXAMPLE BIF NOTE C Ihe Table 9 9 12 V F Board Settings 9 46 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 3 2 Changing Output Voltage Ranges Several different output voltage ranges can be selected by switchs on the V F board See Table 9 9 12 for the switch settings 9 3 4 Status Temp Board The Status Temp Board is a multifunction board that Converts the resistance readings of the thermistors to voltages Conditions the thermocouple voltage for the V F card Provides status output circuitry Provides circuitry for contact closure inputs Provides circuitry for display brown out reset at low line voltage DEA door Provides chip carriers for voltage to current modules 9 3 4 1 Temperature Amplifier Section The Status Temp board 01086 is a multifunction board consisting of 4 thermistor amplifiers that monitor IZS temperature Reaction Cell temperature Box temperature RE er Spare amplifiers have a s
5. KEYBOARD DISPLAY DIGITAL 1 0 sd ANALOG 1 0 a be ANALOG 305 IUIS A VACUUM PUMI STATUS TEMP PMI OON BOARD SCRUBBEI n PHOTON EACTION E aurozero Ay VALVE ZONE ES EEE ITCHIN AL MOLYBDE DRIEI ui FILTEI lI SAMPLE MANIFOLD Table 4 4 1 Block Diagram 4 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 4 2 Operation Summary 4 2 1 Sensor Module Reaction Cell Detector The sensor module Table 9 9 20 is where the chemiluminescent reaction takes place and where the light from the reaction is detected It is the most complicated and critical sub assembly in the entire analyzer It consists of the following sub assemblies and functions The reaction cell and flow control module Reaction cell heater thermistor 1 2 3 Photo multiplier tube PMT and high voltage power supply 4 PMT cooler cold block heatsink fan 5 Preamp assembly Preamp range control hardware HVPS control PMT cooler temp control J awp Electric test electronics E Optic test electronics 4 2 2 Pneumatic Sensor Board The sensor board consists of two pressure sensors and a flow sensor One pressure sensor measures the pressure in the
6. gt ul E Li 1 n n 5 H 23 SD El Mi u di 4 E MT Table 9 9 22 PMT Cooler Subsystem 9 63 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 8 4 PMT Cooler The PMT cooler uses a Peltier cooler supplied with DC current from the switching power supply in the Power Supply Module An overall view is shown in Table 9 9 20 The temperature is controlled by a proportional temperature controller located on the Preamp board Voltages applied to the cooler element vary from 0 1 to 12 VDC The input voltage from the supply is 15 VDC The actual 7 C setpoint will vary 1 C due to component tolerances The temperature will be maintained within 0 1 C about the setpoint The maximum temperature the control circuit is able to report is 15 C The M200A reports this temperature when the unit initially powered on If the temperature fails to drop after 30 minutes there is a problem in the cooler circuit If the control circuit on the Preamp card is faulty a temperature of 1 C is reported 9 3 8 5 High Voltage P S The HVPS is located in the interior of the Sensor Module and is plugged into the PMT tube It requires 2 volt
7. 41020220400 ener senes 7 34 7 9 1 Zero Calibration with AutoRange or Independent Range sse 7 34 7 9 2 Span Calibration with AutoRange or Independent Range 7 34 TIOCALIBRATION QUALITY ne ae een 7 35 III REFERENCES ne nn ea enge een us 7 37 S MAINTENANCE nee 8 1 8 1 MAINTENANCE SCHEDULE pascolare licia edi cio ira lia 8 1 8 2 REPLACING THE SAMPLE PARTICULATE FILTER un oi ER 8 3 8 3 REPLACING THE OZONE SCRUBBER CHARCOAL un een 8 5 BA REPLACING THE PERMEADION era 8 5 8 5 REPLACING THE IZS ZERO AIR SCRUBBER u tl naar 8 6 8 6 REPLACING THE MOLYBDENUM CONVERTER ii i 8 7 8 7 CLEANING THE REACTION CELL au a a 8 9 8 9 PNEUMATIC DINE INSPECTION a eese A css 8 11 SI LEAK CHECK PROCEDURE 1 cc A e lie 8 15 S 10 LIGHT LEAK CHECK PROCEDURE N 8 16 8 11 PROM REPLACEMENT PROCEDURE ne ar 8 16 9 TROUBLESHOOTING ADJUSTMENTS 222000ss0000000000000000000000000000000000 00000000 9 1 9 1 OPERATION VERIFICATION M200A DIAGNOSTIC 2 2 22 2022 200000000000000000008 9 3 9 1 1 Fault Diagnosis with TEST Variables ici aaa aan ae 9 3 9 1 2 Fault Diagnosis with WARNING Messages ii 9 8 9 1 3 Fault Diagnosis Using DIAGNOSTIC Mode ener 9 11 9 14 M200A I
8. 7 6 7 3 MANUAL ZERO SPAN CHECK WITH IZS OPTION cscccesssecssscecssssecesececssccecssseecseeecseeeesseeesseeessas 7 7 FA AUTOMATIC ZERO SPAN CHECK Reese 7 7 T3 DYNAMIC ZERO SPAN CALIBRATION ee 7 7 7 6 CALIBRATE ON PERMEATION TUBE asus 7 9 7 7 USE OF ZERO SPAN VALVES OR IZS WITH REMOTE CONTACT CLOSURE 7 11 7 8 EPA PROTOCOL CALIBRATION gicssnssnssssavanetusassodtnsaiasasunendencasensancasundessunedseaeenmneentaunsysadupaeassanasscades 7 12 1 Cahbralien of Edipo Lana 7 12 7 8 2 Calibration Gas and Zero Air SOUrces i 7 14 7 0 Data Recording Devices lla a alii 7 15 7 8 4 Gas Phase Titration Sdraio 7 16 7 8 5 Dynamic Multipoint Calibration Procedure 7 20 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 48 6 Mok Converter EUHCIGDOYu EEE 7 25 18 7 Calibration Frequency sane elia 7 27 7 8 8 Other Quality Assurance Procedures espe en lan Ra un 7 27 7 8 9 Summary of Quality Assurance Checks 7 29 78 10 ZERO and SPAN Checks ee ein aan 7 30 7 8 11 Recommended Standards for Establishing Traceability i 7 31 7 8 12 Certification Procedures of Working Standards i 7 32 7 9 CALIBRATION OF INDEPENDENT RANGES OR
9. 2 3 TABERE 2 2 24 REAR PANEL a A AI 2 4 TABLE 2 2 3 INLET AND EXHAUST 2 02020002000000000000000000000000000000 2 5 TABLE 2 2 4 FRONT PANEL ccccssssssccccssececssssnssccecescesenessnseaeessececssesnsaacaseescesenesssnaeesseceeseesnssaeaeeesees 2 10 TABLE 2 2 5 ASSEMBLY LAYOUT es id he ERE LR skin 2 11 TABLE 2 2 6 FINAL TEST AND CALIBRATION 8 00 000001110 2 12 TABLE 2 1 FINAL TEST AND CALIBRATION VALUES CONTINUED ceres enne enne enne 2 13 TABLE 4 4 1 BLOCK DIAGRAM tus hall 4 2 TABLE 4 4 2 FRONT PANEL STATUS LED S narniai iiare nennen entente eset enne tenen nano seen 4 5 TABLE 4 4 3 EXTERNAL PUMP PACK iii 4 8 TABLE 4 4 4 OZONE GENERATOR START UP TIMING 4 9 TABEE 9 5 1 SAMPLE MENU TRER TE pea err eee You ee 5 2 TABLE 5 5 2 SETUP MENU TREE rien 5 3 TABLE 5 5 3 M200A SAMPLE MENU STRUCTURE eren en en enne rers een nennen nnn 5 4 TABLE 5 5 4 M200A SETUP MENU 2 00000010100000000000220 0 5 5 TABLE 5 5 5 M200A MENU STRUCTURE SETUP MENU 2 sss 5 6 TABLE 5 5 6 M200A MENU STRUCTURE SETUP MENU 3 5 6 TABLE 5 5 7 DAS DATA CHANNEL EDITING esent ea a enint ette a tenen nennen 5 16 TABLE 5 5 8 CALIBRATE SETUP
10. EF DE REF DE 193 Table 9 9 19 Flow Pressure Sensor 9 59 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NO Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 20 NO Sensor Module 9 60 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 21 NO Sensor Module 9 61 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 8 NO Sensor Module Table 9 9 20 and Table 9 9 21 show the assembly of the NO sensor module 9 3 8 1 PMT The PMT detects the light emitted by the reaction of NO with ozone It has a gain of about 500 000 to 1 000 000 It is not possible to test the detector outside of the instrument in the field The best way to determine ifthe PMT is working is by using Optic Test OT operation is described in Section 9 1 3 3 The basic method to diagnose a PMT fault is to eliminate the other components using ET OT and specific tests for other sub assemblies 9 3 8 2 Reaction Cell Temp The reaction cell temperature is controlled by the CPU It operates by reading a thermistor amplifier on the 01086 Status Temp board The CPU controls the temperature
11. AT Switch to terminal mode Security Features Definition LOGON id password Establish connection to analyzer LOGOFF id Disconnect from analyzer General Output Message Format Reporting of status messages for use as an audit trail is one of the two principal uses for the RS 232 interface You can effectively disable the asynchronous reporting feature by setting the interface to quiet mode All messages output from the analyzer including those output in response to a command line request have the format X DDD HH MM IIII MESSAGE X is a character indicating the message type as shown in the Table 5 5 16 DDD HH MM is a time stamp indicating the day of year DDD as a number from 1 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 is the 4 digit machine ID number MESSAGE contains warning messages test measurements DAS reports variable values etc The uniform nature of the output messages makes it easy for a host computer to parse them PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 16 RS 232 Interface Command Types First Character Message Type Calibration D Diagnostic T Test measurement V Variable W Warning There are 5 different types of messages output by the M200A The meanings of the various me
12. The ozone generator subsystem consists of a permeation drier flowmeter power supply generator module and power switch The location of the components is illustrated in Table 9 9 18 Ozone is generated by drying ambient air passing the air between two electrodes that have a large oscillating electric field generated by a high voltage transformer Common faults in the ozone generator are 1 leak or some other failure in the drier will let ambient air into the generator There is enough water vapor in room air to cause the generator to make nitric acid aerosol It is very corrosive and causes the generator cartridge to short out due to salt build up This reduces the ozone concentration generated which can cause the analyzer to be non linear due to insufficient ozone concentration 2 Blown fuse The Ozone generator fuse is located on the upper end of the generator case Contaminated ozone generator cartridge Dis assemble and clean Salts and oxgenated hydrocarbons can be removed by rinsing with 10 nitric acid at 50 C 4 Shorts open circuits arcing inside the case Because of the very high voltages metallic components inside the ozone generator case can malfunction A Disconnect power B Remove ozone generator cover and inspect the wiring for evidence of arcing and open circuits Typically arcing due to high voltage has a dusty burnt look Look for these areas inside the case and on the wiring that comes near the case
13. gt Srl N E Sb 77 ZIO ze mE Gc Must n TIT w DRM MM E e zZzz 515 5 zz isi HW Y gt a apo odz E 3 B ZZZ ena Zn SER Oe Ey Li u 5 d e N u 4 E gt E Ra e E 4 ux 1 a 1 si AL FILTER AMPLE ALVE JEL ERO SAMPLE KILLEI FILTEI PUMP 4 EXTERNAL PUMP PACK Table 8 8 7 Pneumatic Diagram with Zero Span Valve Option 8 13 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 ug gt C x a Pd EE D TN E E x No gt iL Q i gt a Vel 2x La a CA ET A TE reos o gt SNA C d seng Ei ss 5 9 E ded E zzzz S gt aaa gt le i ZEZZ a zd
14. MODEL 200A 47 MM FIITER EXPENDABLES KIT en 10 5 TABLE 10 4 TELEDYNE API MODEL 200A EXPENDABLES KIT IZS 10 6 TABLE 10 5 TELEDYNE API MODEL 200A LEVEL SPARES 2 14 10 6 TABLE 10 6 TELEDYNE API MODEL 200A SPARES KIT FOR 1 UNIT 10 7 TABLE 10 7 TELEDYNE MODEL 200A 37 MM FIITER EXPENDABLES KIT WITH 10 7 TABLE 10 8 TELEDYNE API MODEL 200A 47 MM EXPENDABLES KIT WITH 10 8 TABLE A 1 ELECTRICAL SCHEMATICS sionista aria sii 1 TABLE 1 ELECTRICAL SCHEMATICS CONTINUED sssssssccsecssstencsasssssssansceseadeesssensansandaassasnenseasbanacennasances 2 x PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 1 HOW TO USE THIS MANUAL The Model 200A has been designed to provide serviceability reliability and ease of operation The M200A s microprocessor continually checks operating parameters such as temperatue flow and critical voltages The instruments modular design uses captive screws to facilitate repair and ease of access If you encounter any difficulty refer to Section 9 General Troubleshooting Hints We recognize that the need for information in this manual changes as time passes When the instrument first arrives it is necessary to get it up and running quickly and verify its corre
15. 9 54 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 17 Ozone Generator Control Conditions To Condition Description Generator 1 Manual override off SETUP MORE DIAG OZONE GEN OFF 2 Manual override on ON 3 Ozone flow below low warning limit for 5 minutes OFLOW_SET OFF setup variable 4 Instrument powered on for more than 30 minutes ON 5 Instrument powered off for less than 1 hour and ozone generator was ON on when instrument was powered off 6 Ozone flow above low warning limit for 0 5 minutes and condition 4 ON or 5 is true NOTE The ozone generator is independently controlled in the SIGNAL OPTIC TEST and ELECTRICAL TEST diagnostics After exiting these diagnostics the ozone generator is restored to the state specified by the above conditions 9 3 6 1 PermaPure Drier The PermaPure drier is constructed of 2 concentric tubes The inner tube is a special material that has an affinity for water vapor The outer annulus is evacuated by the instrument pump This creates a concentration gradient causing water in ambient air to diffuse into the outer annulus thus the air in the inner tube becomes progressively drier as it progresses down the tube Due to the large number of connections and fittings on the drier the most common drier fault is leaks Before proceding wit
16. If AutoRanging or Independent range options are selected the highest of the ranges will result in the most accurate calibration and should be used Make sure the GPT calibration system can supply the range of concentrations at a sufficient flow over the whole range of concentrations that will be encountered during calibration 7 20 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 PUMI HANKISON ARCOAL FILT ___ DRIEI ba d BLEEI AIR INLET FLOW CONTROL HARCOAL mUV LAMP FL FL FLC METEI CONTROL REACTION MIXING ZONE LUME VOL 1 FLO FL ONTROL MEI NO STI Table 7 7 13 Diagram of GPT Calibration System 7 21 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 5 1 Zero Calibration Procedure Since the zero gas concentration is defined as 0 ppb it is not necessary to enter the expected zero value The following Table 7 7 14 details the zero c
17. RCEL PRESS 5 1 in Hg A Thomas 607 7 2 ASF internal RCEL is the pressure in the Reaction Cell The instrument is very sensitive to variations in reaction cell pressure 10 change in output per 1 Hg pressure is typical The pressure reading will change when going to the AutoZero cycle otherwise it should remain constant Higher altitudes will decrease cell pressure due to lower pump back pressure Pressures out of the acceptable range will decrease instrument noise performance and sensitivity SAMP PRESS 29 5 Hg at sea level The sample pressure is taken just upstream of the reaction cell It usually runs about 0 5 less than ambient pressure due to the restrictions in the sample intake tubing Sample pressure should be within 1 Hg of atmospheric pressure The pressure sensor used reports absolute pressure and therefore is sensitive to altitude weather fronts and room air conditioning Changes due to altitude is about 1 per 1000 ft other changes are 0 4 maximum Pressurizing the sample inlet will cause the M200A to be noisy and to shift its reading SLOPE 1 0 0 3 This is the software slope value It operates like a software gain pot Refer to Table 7 7 21 on Calibration Quality for additional information OFFSET 0 150 This is the software offset value It operates like a software DC offset pot Refer to Table 7 7 21 on Calibration quality for additional informati
18. m n Ca i Table 9 9 23 High Voltage Power Supply 9 65 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 9 Z S Valves amp IZS Permeation Tube Oven The Z S Valves and IZS are both options in the instrument Before troubleshooting this sub assembly check that the options were ordered and that they are enabled in the software Sections 7 2 7 3 show how the Z S valve and IZS options should be set up and how to use them with the AutoCal and Dynamic Cal features Check for the Z S valves 1 Check for the physical presence of the valves See Table 2 2 5 for the 7 5 Valve location 2 Check front panel for option presence The front panel display when the instrument is in SAMPLE mode should display CALS and CALZ buttons on the second line of the display The presence of the buttons indicates that the option has been enabled in software Troubleshooting the Z S valves 1 It is possible to manually toggle each of the valves using the SIGNAL I O selection of DIAGNOSTIC mode Refer to Section 9 1 3 for information on using the DIAG mode Also refer to Table 8 8 6 Table 8 8 7 Table 8 8 8 for a pneumatic diagram of the system Check for the IZS option 1 Check for the physical presence of the IZS oven See Table 2 2 5 for the Z S Valve location 2 Check front panel TEST functions for presence of IZS temperature If IZS temperature
19. 7 24 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 4 Calculate the resulting concentrations as follows ok NO lora NO Jive Equation 7 10 T Where NO onic is the NO concentration before the GPT ozone is turned on and NO rem is the NO remaining after GPT Plot the NO concentration output by the instrument on the y axis against the generated NO on the x axis The plot should be a straight line within the 2 linearity criteria given for the NO and NO channels If the plot is not linear the most likely cause is that the converter needs replacing See Section 7 8 6 on Moly converter efficiency 7 8 6 Moly Converter Efficiency The moly efficiency should be 96 to 102 efficient If it is outside these limits it should be replaced The converter efficiency can be determined from the data collected in 7 8 5 3 For each NO concentration generated 1 Calculate the concentration of NO converted as lcow I L NO log NO Equation 7 11 Where NO oni is the NO concentration before the GPT ozone is turned on and is the NO remaining after GPT Plot the NO conv concentration output by the instrument on y axis against the concentration generated NO our on the x axis The plot should be a straight line within the 2 lin
20. Internal pump P N 01237 Si a Oe Reo du NO ur Rack Mount Options Rack Mount permits the Analyzer to be mounted in a standard 19 wide x 24 deep RETMA rack 1 Rack mount with slides 2 Rack mount without slides The external pump can be ordered in the following configurations 1 External pump pack standard configuration 2 Pump pack with rack mount tray to enable slide out servicing 3 Pump pack with rack mount fixed tray 6 2 Zero Span Valves The Zero Span Valve option consists of two stainless steel solenoid valves Connections are provided on the rear panel for span gas and zero gas inputs to the valves see Table 2 2 2 The valves can be actuated by several methods as shown in Table 6 1 6 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 6 6 1 Zero Span Valve Operation Mode Description Reference Section 1 Front panel operation via Calibration Section 7 Manual Zero Span Check CALS and CALZ buttons 2 Automatic operation using Setup and use of AUTOCAL is described in Table 6 2 AUTOCAL and Section 7 4 3 Remote operation using the Setup described in Table 6 2 Operation of AUTOCAL RS 232 interface described in Section 5 5 and Section 7 Calibration A complete description ofthe RS 232 interface is available Order part number 01530 4 Remote operation using Section 7 7 Automatic operation using
21. 1 pua d E x ij e T T Zu mao Een e um um SNUG m Tan EEE eso coo 22 1 N pam Ez on ul ri z T N 1 x u a t 5 E 3 gt z i Ne ra E Table 8 8 8 Pneumatic Diagram with IZS Option 8 14 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 9 Leak Check Procedure If a leak checker is not available it is possible to leak check the instrument using the 200 pump plus a shut off valve 1 Turn off instrument power and pump power 2 Cap the sample inlet port ozone generator air inlet and zero air inlet if IZS option present 3 Insert a shut off valve between the sample pump and the vacuum manifold at the rear of the instrument 4 Turn on the sample pump and set the TEST function to RCEL which measures the reaction cell pressure Close the shutoff valve and monitor the cell pressure The pressure should not drop more than 1 Hg 5psi in 5 minutes If there is a leak it is not possible by this method to tell where it is located You can locate the leak by using a pressure leak checker described below 5 The sensor module is equipped with a fitting at the top of housing near the heat sink fins This fitting can be pressurized and the sensor checked for leaks The leakdown rate is the same as above If you have a leak checker 1
22. 3 SPAN_VALVE YES Switches the IZS Zero Span valve Use this bit to test the valve function 4 CAL_VALVE YES Switches the IZS Sample Cal valve Use this bit to test the valve function YES Switches the NO NO valve Use this bit to test the valve function NOX_VALVE Shows the status of the reaction cell heater This has the same function as the LED in the Power Supply Module Shows the status of the IZS permeation tube heater RCELL HEATER 7 175 HEATER This has the same function as the LED in the Power Supply Module ELEC TEST YES Turns on electric test bit in preamp Should be used for troubleshooting Preamp logic lines We recommend you use the ELEC TEST button in the DIAG menu to operate electric test OPTIC TEST Turns on optic test bit in preamp Should be used for troubleshooting Preamp logic lines table continued We recommend you use the OPTIC TEST button in the DIAG menu to operate optic test 9 13 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 4 Diagnostic Mode Signal Continued 10 BROWNOUT RST YES Brownout reset works in conjunction with DSP_BROWNOUT When DSP_BROWNOUT is set the CPU sends a signal to reset the display and clear the DSP_BROWNOUT 11 CONV_HEATER YES Shows the status ofthe Moly heater This has the same function as the LED in the Power Supply Module O3GEN STATUS Switches ON OFF power
23. 55 8 00 0 00 0001010100 5 20 TABLE 5 5 9 M200A OPERATING MODES e 5 22 TABLE 5 5 10 STATUS OUTPUT PIN ASSIGNMENTS ee 5 23 TABLE 5 5 11 RS 232 PORT SETUP FRONT PANEL 5 25 TABLE 5 5 12 RS 232 SWITCHING FROM TERMINAL MODE TO COMPUTER 5 26 TABLE 5 5 13 RS 232 TERMINAL MODE EDITING KEYS 5 26 TABLE 5 5 14 RS 232 COMMAND SUMMARY rie 5 29 TABLE 5 5 15 RS 232 COMMAND SUMMARY rie 5 30 TABLE 5 5 16 RS 232 INTERFACE COMMAND 5 31 TABLE 5 5 17 RS 232 TEST MESSAGES eee 5 32 TABLE 5 5 18 RS 232 WARNING MESSAGES ii 5 33 TABLE 5 5 19 RS 232 CALIBRATION ee 5 34 TABLE 5 5 20 RS 232 CALIBRATION EXAMPLES ie 5 35 TABLE 5 5 21 RS 232 CALIBRATION MESSAGES iii 5 36 TABLE 5 5 22 RS 232 DIAGNOSTIC COMMAND SUMMARY 020000000 0 00 601000000000 5 37 TABLE 6 6 1 ZERO SPAN VALVE OPERATION isi iaia ai 6 2 TABLE 6 6 2 IZS SEQUENCE MODES Li 6 3 TABLE 6 6 3 IZS SEQUENCE ATTRIBUTES eee 6 4 TABLE 6 6 4 TZS SEQUENCE nennen eren 6 4 TABLE 6 6 5 EXAMPLE OF AUTOCAL SETUP 1 0 00000000000000010000000000000
24. 55 lbs 25 kg w internal pump 16 lbs 7 kg 5 lbs 2 kg 100 V 50 60 Hz 120V 60 Hz 220 V 50 Hz 240 V 50 Hz 125 watts 230 V 50 Hz 2 5A peak 110 V 60 Hz 220V 50 Hz 240V 50Hz 295 watts 230 V 50 Hz 2 5A peak 110 v 50 60 Hz 60 watts Installation Category Over voltage Category II Pollution Degree 2 0 100 mV 0 1 5 10v 1 part in 1024 of selected voltage or current range 12 Status Outputs from opto isolator ppb ppm ug m mg m Electrical rating for CE Mark compliance 3 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 3 2 EPA Equivalency Designation Advanced Pollution Instrumentation Inc Model 200A Nitrogen Oxides Analyzer is designated as Reference Method Number RFNA 1194 099 as defined in 40 CFR Part 53 when operated under the following conditions 1 2 3 4 5 6 7 D E F G H I Range Any range from 50 parts per billion ppb to 1 ppm Ambient temperature range of 5 to 40 C Line voltage range of 105 125 VAC 60Hz 220 240 50Hz With 5 micron TFE filter element installed in the internal filter assembly Sample flow of 500 50 cc min Vacuum pump internal or external capable of 10 Hg Abs pressure 2 slpm or better Software settings Dynamic span OFF Dynamic zero OFF Cal on NO2 OFF Dilution factor OFF AutoCal ON or OFF Independent range ON or OFF Au
25. OFFSET value is outside this range check Section 9 1 6 4 Scroll the TEST The instrument will now display the NO OFFSET value It function menu until should also have a value near zero 0 0 20 150 mV This the NO OFFSET is number already has the AutoZero reading subtracted out and displayed should be near zero Ifthe OFFSET value is outside this range check Section 9 1 6 After the above procedure is complete the M200A is ready to measure sample gas 7 36 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 11 References 1 Environmental Protection Agency Title 40 Code of Federal Regulations Part 50 Appendix F Measurement Principle and Calibration Procedure for the Measurement of Nitrogen Dioxide in the Atmosphere Gas Phase Chemiluminescence Federal Register 41 232 pp 52688 52692 December 1976 Ellis Elizabeth C Technical Assistance Document for the Chemiluminescence Measurement of Nitrogen Dioxide U S Environmental Protection Agency Research Triangle Park October 1976 91 p Quality Assurance Requirements for State and Local Air Monitoring Stations SLAMS Appendix A Federal Register Vol 44 No 92 pp 27574 27582 May 1979 Catalog of NBS Standard Reference Materials NBS Special Publication 260 1975 76 Edition U S Department of Commerce NBS Washington D C June 1975 Quality Assurance Handbook for Ai
26. TELEDYNE INSTRUMENTS Advanced Pollution Instrumentation A Teledyne Technologies Company INSTRUCTION MANUAL Chemiluminescent NO NO NOx ANALYZER Model 200A CHEMILUMINESCENT ANALYZER MODEL 200A POLL PRION INETHRMENTATION ME Teledyne Advanced Pollution Instrumentation T API 9480 Carroll Park Drive San Diego CA 92121 5201 TOLL FREE 800 324 5190 FAX 858 657 9816 TEL 858 657 9800 E MAIL api sales teledyne com WEBSITE www teledyne api com Teledyne Model 200A Analyzer Instruction Manual 02246 Rev G DCN 5247 HIGHLIGHTS The purpose of this Highlights Page is to list the changes that were incorporated into this Manual per DCN 5247 Chapter Page Number Description Title Page e Changed Revision number and date e Added DCN number to footer All Pages e Changed Revision number and date e Added DCN to all footers of Text P N 02246G e Added PRINTED DOCUMENTS ARE UNCONTROLLED to all footers of Instruction Manual P N 02246G e Updated List of Figures 3 3 3 3 4 e Updated Warranty Section 8 8 15 e Added note to replace the 5 dessicant bags if black PMT cover for the Sensor Assembly is removed 10 10 1 thru 10 7 e Updated Spare Parts List Tables 10 1 thru 10 6 10 10 7 10 8 e Added Tables 10 7 and 10 8 for new Expendables Kits PRINTED DOCUMENTS ARE UNCONTROLLED
27. THIS PAGE IS INTENTIONALLY LEFT BLANK Me TELEDYNE INSTRUMENTS Advanced Pollution Instrumentation A Teledyne Technologies Company INSTRUCTION MANUAL MODEL 200A NITROGEN OXIDE ANALYZER TELEDYNE ADVANCED POLLUTION INSTRUMENTATION TELEDYNE API 9480 CARROLL PARK DRIVE SAN DIEGO CA 92121 5201 TOLL FREE 800 324 5190 FAX 858 657 9816 TEL 858 657 9800 E MAIL api sales teledyne com WEB SITE www teledyne api com 02246 REV G DCN 5247 Copyright 2005 API Inc 10 December 2008 THIS PAGE IS INTENTIONALLY LEFT BLANK Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 SAFETY MESSAGES Your safety and the safety of others is very important We have provided many important safety messages in this manual Please read these messages carefully A safety message alerts you to potential hazards that could hurt you or others Each safety message is associated with a safety alert symbol These symbols are found in the manual and inside the instrument The definition of these symbols is described below GENERAL WARNING CAUTION Refer to the instructions for details on the specific danger CAUTION Hot Surface Warning CAUTION Electrical Shock Hazard Technician Symbol All operations marked with this symbol are to be performed by qualified maintenance personnel only Electrical Ground This symbol inside the instrument marks the central safety grounding point for the instrument
28. Table 9 4 Diagnostic Mode Signal Continued Fs pacco mo oupuorno siametmav x wo TOI 37 PAC CHAN mo 38 DAC CHAN 3 NO Test Channel output Not implemented in current software 39 YES NO DAC programming voltage The following 4 signals can be set to output specific voltages to each DAC Use in conjunction with ANALOG OUTPUT test to check each DAC output channel The value keyed in should appear on the the appropriate analog output channel This value overrides data being written from the analyzer Value reverts to instrument output when function is exited 40 NO_CONC YES NO DAC programming voltage See above for description 41 NO2 CONC YES NO DAC programming voltage See above for description 42 TEST OUTPUT YES TEST channel programming voltage See above for description 9 1 3 2 Electric Test This function injects a constant voltage between the preamplifier and the buffer amplifier on the preamp board Electric test checks part of the preamp the V F and computer for proper functioning The result of electric test should be a smooth quiet signal as shown by constant values for the NO NO concentrations the NO concentration should be near zero Likewise the analog outputs should produce a smooth quiet trace on a strip chart Procedure 1 Scroll the TEST function to PMT 2 Press SETUP MORE DIAG then scroll to ELECT TEST by pressing the
29. lower limit of allowable values data hi upper limit of allowable values 5 39 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Variables can be changed Before changing the settings on any variables please make sure you understand the consequences of the change We recommend you call the factory before changing the settings on any variables The general format for changing the settings a variable is V value warn lo warn hill For example to change the warning limits on the box temperature type V BOX SET 30 10 50 and the CPU should respond with V DDD HH MM IIII BOX SET 30 10 50 0 to 60 The CONFIG command lists the software configuration To show the software configuration type V CONFIG In addition to SAMPLE and SETUP modes the M200A has a number of additional operational modes They are listed in Table 5 5 To list the analyzer s current mode type V MODE 5 40 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 6 OPTIONAL HARDWARE AND SOFTWARE 6 1 Optional equipment offered with the M200A includes Rack mount with slides P N 01469 Rack mount without slides ears only P N 01470 Rack mount for external pump w o tray P N 0099701 Stainless steel zero span valves P N 01468 Internal zero span IZS P N 01223 4 20mA isolated outputs P N 01471
30. Analog outputs electrically loaded down causing voltage to sag Could be due to imput impedance to chart recorder or data logger being too low or improper grounding The Recorder and DAS outputs do not have separate output drivers the problem could be the combined load of both could be too high 9 34 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 Subsystem Troubleshooting and Adjustments 9 3 1 Computer Display Keyboard The purpose of this section is to determine ifthe computer subsystem electronics hardware are working properly Asessment will be made at the board level 9 3 1 1 Front Panel Display The front panel display is a 2 line by 40 character display It has its own microprocessor to decode commands and display characters It contains a self test feature To test the display 1 Turn off the power to the instrument 2 Fold down the M200A front panel 3 Disconnect 26 line flat ribbon cable J2 that connects the computer parallel port to the keyboard 4 Turn on the M200A power switch 3 Observe the front panel display If the display successfully completes its power on self test it will display a single underline character in the left most character of the top line of the display If this character is present the display is working properly 6 Power down the analyzer and re attach the cable to J2 and proceed to the next test
31. For information on shelter and sample inlet system an in depth study is in Field Operations Guide for Automatic Air Monitoring Equipment Publication No APTD 0736 PB 202 249 and PB 204 650 U S Environmental Protection Agency Office of Air Programs October 1972 7 27 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 18 Definition of Level 1 and Level 2 Zero and Span Checks from Section 2 0 9 of Q A Handbook for Air Pollution Measurment Systems LEVEL 1 ZERO AND SPAN CALIBRATION A Level 1 zero and span calibration is a simplified two point analy zer calibration used when analy zer linearity does not need to be checked or verified Som etimes when no adjustments are made to the analyzer the Level 1 calibration may be called a zero span check in which case it m ust not be confused with a Level 2 zero span check Since m ost analy zers have a reliably linear or near linear output response with concentration they can be adequately calibrated with only two concentration standards two point concentration Furthermore one of the standards may be zero concentration which is relatively easily obtained and need not be certified Hence only one certified concentration standard is needed for the two point Level 1 zero and span calibration Although lacking the advantages of the multipoint calibration the two point zero and span calibration bec
32. LIST etc are called keywords and are shown on the help screen in uppercase but they are not case sensitive You must type the entire keyword s separated by spaces abbreviations are not accepted NOTE To open the help screen Type 2 and press the Enter key 5 26 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Security Feature The RS 232 port is often connected to a public telephone line which could compromise instrument security If the LOGON feature is implemented the port has the following attributes 1 2 3 A password is required before the port will operate If the port is inactive for 1 hour it will automatically LOGOFF Repeat attempts at logging on with incorrect passwords will cause subsequent logins even with the correct password to be disabled for 1 hour If not logged on the only command that is active is the The following messages will be given at logon LOG ON SUCCESSFUL Correct password given LOG ON FAILED Password not given or incorrect LOG OFF SUCCESSFUL Logged off The RS 232 LOGON feature must be enabled from the front panel by setting bit 4 See Table 6 6 4 Once the feature is enabled to logon type LOGON 940331 940331 is the default password The password can be changed to any number from 0 to 999999 by the variable RS232_PASS To change the password enter the command V RS232 PASS NNNN
33. O lt L ye pss E LJ SES NU Lul LL FO le EN Cy gt J VL fot e APE gaooadu Se gt Nu FS LIO AO ia d ee FR Li E Table 5 5 1 Sample Menu Tree 5 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 E A x ELI m ki L T m LU E L gt m E LE Le T EE cde p dB z LS aw o 2 M o gt IH F gt se m I TE PI O gt LX 5 a pui ep ii Y x Z E UE 2 TL 77 OT ea Ed 1 4 IL OCW 5 2 2 2 I 1 Te H 2 7 y E 5 SE ls H gt Er A Este T n zt ER pos 1 Ix OE u gt gt lt el SE LJ Say ps y U Lebe Lu 2 25 lt 3 Aww LU ha dle c li gt I Mitad H 2 lt 1 SCI 5 gt S lg _ 25 QUOZHEE 8 9 rea E Zar alu lt 0 n WOFOFO 4 ie 7 yee BEER ny dep 02293 148 0 4 Da2 2 d b 1 AB A ER ON 62 1 PH o a E 252 ul
34. OTHERWISE 3 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 TERMS AND CONDITIONS All units or components returned to Teledyne API should be properly packed for handling and returned freight prepaid to the nearest designated Service Center After the repair the equipment will be returned freight prepaid 3 4 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 4 THE 200 ANALYZER 4 1 Principle of Operation The Teledyne API Model 200A Analyzer is designed to measure the concentration of nitric oxide NO total oxides of nitrogen NOx and by calculation nitrogen dioxide NO The instrument measures the light intensity of the chemiluminescent gas phase reaction of nitric oxide NO and ozone O3 as follows 02 NO2 NO2 The reaction of NO with ozone results in electronically excited molecules as shown in the first equation above The excited NO molecules release their excess energy by emitting a photon and dropping to a lower energy level as shown in the second equation It has been shown that the light intensity produced is directly proportional to the NO concentration present The Analyzer samples the gas stream and measures the NO concentration by digitizing the signal from the Analyzer s photomultiplier tube PMT A valve
35. RS 232 Diagnostic Command Summary Command Description D id LIST Prints all I O signal values See Table 9 4 for Sig I O definitions D id name value Examines or sets I O signal For a list of signal names see Table 9 9 4 in Section 9 Must issue D ENTER SIG command before using this command D id LIST NAMES Prints names of all diagnostic tests D id ENTER SIG Executes SIGNAL I O diagnostic test D id ENTER OT Executes Optic Test diagnostic test D id ENTER ET Executes Elect Test diagnostic test Example of Ozone Generator diagnostic is in Section 9 3 6 Use D EXIT to leave these diagnostic modes D id EXIT Must use this command to exit SIG ET or OT Diagnostic modes D id RESET Resets analyzer software same as power on D id RESET RAM Resets analyzer software and erases RAM Erases NO NO conc values Keeps setup variables and calibration same as installing new software version D id RESET EEPROM Resets analyzer software and erases RAM and EEPROM Returns all setup variables to factory defaults resets calibration AutoZero values 5 5 7 DAS Commands and Message The M200A contains a flexible and powerful built in data acquisition system DAS that enables the analyzer to store concentration data as well as diagnostic parameters in its battery backed memory This information can be printed out through the RS 232 port The diagnostic data can be used for performi
36. Return to supplier or take contaminants and appropriate action with Sec 2 0 7 Subsec 7 1 generation system Q A Handbook Multi point 1 tg lt 2 minutes Pr gt Method Adjust flow conditions calibration 2 75 ppm min and or reaction chamber GPT lure e volume to meet suggested limits Repeat the calibration Replace or service the converter 7 8 2 Calibration Gas and Zero Air Sources 7 8 2 1 Production Of Zero Air Devices that condition ambient air by drying and removal of pollutants are available on the commercial market such as the Teledyne API Model 701 Zero Air Generator We recommend this type of device for generating zero air Detailed procedures for generating zero air are in TAD 7 14 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 2 2 Selection of NO Span Gas Standards The NIST SRM s provide references against which all calibration gas mixtures must be compared Section 2 0 7 Q A Handbook The procedure requires the comparison of the concentration of a commercial working calibration standard to an NIST SRM This is described in Subsection 7 1 of Section 2 0 7 Q A Handbook Subsections 7 1 4 and 7 1 5 describe the verification and reanalysis of cylinder gases Care must be taken to assure that no oxygen is allowed in the NO tank regulator or sample lines If oxygen is present it reacts with NO to produce NO whic
37. TABLE 7 7 14 ZERO CALIBRATION PROCEDURE 7 22 TABLE 7 7 15 EXPECTED SPAN GAS CONCENTRATION 7 23 TABLE 7 7 16 SPAN CALIBRATION PROCEDURE 2 ee 7 23 TABLE 7 7 17 AUTOMATIC CALCULATION OF CONVERTER EFFICIENCY 000 eene 7 26 TABLE 7 7 18 DEFINITION OF LEVEL 1 AND LEVEL 2 ZERO AND SPAN CHECKS 7 28 TABLE 7 7 19 ACTIVITY MATRIX FOR DATA QUALITY sa alla 7 29 TABLE 7 7 20 NIST SRM S AVAILABLE FOR TRACEABILITY OF CALIBRATION AND AUDIT GAS STANDARDS tech aa a E 7 32 TABLE 72 1 CALIBRATION QUALITY CHECK ii ao ass 7 36 TABLE 8 8 1 PREVENTATIVE MAINTENANCE SCHEDULE 8 1 TABLE 8 8 2 PREVENTATIVE MAINTENANCE SCHEDULE iii 8 2 TABLE 8 8 3 REPLACING THE PARTICULATE FILTER 8 4 TABLE 8 8 4 MOLYBDENUM CONVERTER ASSEMBLY 2 04 00 02 000000000000000000000020000 8 8 TABLE 8 8 5 REACTION CELL 55 1 4 0 000000000001000000000000000 8 10 TABLE 8 8 6 PNEUMATIC DIAGRAM STANDARD CONFIGURATION 8 12 TABLE 8 8 7 PNEUMATIC DIAGRAM WITH ZERO SPAN VALVE OPTION 8 13 TABLE 8 8 8 PNEUMATIC DIAGRAM WITH IZS OPTION ene n eene eene nnn seen 8 14 TABLE 9 91 TEST BUNCTIONS 55 55 dd 9 4 TABLE 9 1 REST FUNCTIONS CONTINUED a a I
38. Turn off instrument power and pump power 2 Disconnect pump at rear panel Cap the sample inlet port ozone generator air inlet and zero air inlet if IZS option present and connect the leak checker to the exhaust port CAUTION Pressure must be less than 15 psi 3 Pressurize system and check for leaks by watching overall pressure The pressure should not drop more than 2 Hg 1 psi in 5 minutes If the instrument fails the pressure test each fitting needs to be leak checked to find the location Be careful that the system is always pressurized so as not to draw soap solution into the plumbing system Make sure you dry off any accumulated bubble solution Refer to Table 8 8 6 Table 8 8 7 Table 8 8 8 for pneumatic diagrams The Sensor module can be leak checked as a unit using a 1 8 tubing fitting on top of the assembly The same rules as above apply 1 Pressurize to lt 15 psi 2 After turning off pressure tester pressure should not drop more than 2 Hg in 5 minutes NOTE If the black PMT cover for the Sensor Assembly is removed ensure to replace the 5 dessicant bags inside the housing 8 15 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 10 Light Leak Check Procedure 1 2 3 Scroll the TEST functions to Input zero gas Shine a powerful flashlight or portable incandescent light at the inlet and outlet
39. With dynamic calibration turned on the instrument will re set the slope and offset values for the NO and NO channel each day This continual re adjustment of calibration parameters can often mask subtle fault conditions in the analyzer It is recommended that if Dynamic Cal is enabled the TEST functions and SLOPE and OFFSET values in the M200A are checked frequently to assure high quality and accurate data from the instrument 7 8 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 6 Calibrate on NO Permeation Tube If the M200A is equipped with the IZS option is possible to span the instrument on the permeation tube If this feature is enabled the instrument internal valves are set so that gas is routed through the permeation tube then the moly converter thus producing NO gas The software is programmed to use this known NO gas concentration to span both the NO and NO channels of the instrument Thus if CAL ON NO2 is enabled the CALS button now will span both the NO and NO channels of the instrument CAUTION This feature has some unexpected side effects If CAL ON NO2 is enabled and you do a SPAN CHECK or SPAN CAL the NO concentration will be reported as ZERO This is because all of the NO gas is being routed through the molybdenum converter during both the NO and NO portions of the measurement cycle Thus the instrument sees the SAME concen
40. and 240 VAC inputs Power Transformers There are potentially 2 input power transformers in the instrument The multitap transformer is in every M200A and supplies input power for the Linear Power Supply board described above A second transformer T2 is added if 220 or 240 VAC input is required Input power selection is done via a programming connector P2 which provides the proper connections for either foreign or domestic power Circuit Breaker Power Switch The front panel contains a combination circuit breaker input power switch It is connected to the PSM through J6 on the Switch Board If an overload is detected the switch goes to the OFF position Switching the power back on resets the breaker also 9 50 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 O ie a C T dina po n C 5 a OU m um Zur x 5 d gt O Om rH Vic 1 LO a I Sen j E 2 EE po an Dm EE lei E Ur DI LUO I RJ LUO g fs 2 Culte ey CAMS LH 5 lr ae an i O 6 E 5 5 TEA 0 lt Cnm N ATN Aldd ls 33M0Od YVJNII i ey E 5 05 im Table 9 9 14 Power Supply Module Layout 9 51 P
41. po 0 o lt 8 ee E ca ONN se na L2 ro D E sci 0 Lu a LU 22 LIT 0 Table 5 5 2 Setup Menu Tree 5 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 1 1 Sample Menu Table 5 5 3 M200A Sample Menu Structure PRINTED DOCUMENTS ARE UNCONTROLLED Menu Level Level 1 Level 2 Level 3 Level 4 Description Reference Section TEST Test functions 5 2 1 Table 9 TST gt 9 1 CAL Zero Span calibration w gas 5 2 2 1 7 3 through sample port CALZ Zero calibration w zero gas 3222 7112 from zero valve option or IZS option CALS Span calibration w span gas 5 2 2 3 7 1 7 2 from span valve option or IZS option ZERO Press ZERO then ENTR will 5 2 22 7 4 7 2 zero analyzer SPAN Press SPAN then ENTR will 3 2 2 3 7A 7 2 span analyzer CONC Expected NO NO span Table 7 7 4 concentrations and Moly conv efficiency setup NOX Enter expected NO span 5 2 2 Table 7 CONC concentration 7 4 NO CONC Enter expected NO span 5 2 2 Table 7 concentration 7 4 CONV Sub menu for converter 5 2 2 6 7 8 6 efficiency setup and verification NO2 Expected NO concentration for 5 2 2 6 7 8 6 converter efficiency calculation CAL Automatic converter efficiency 5 2 2 6 7 8 6 calibration and entry SET Set the converter efficiency 5 2 2 6 7
42. 6 Leak check the assembly then re attach scrubber to fitting and clip on rear panel 8 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 6 Replacing the Molybdenum Converter The Molybdenum Converter is located in the center of the instrument see Table 2 2 5 for location and Table 8 8 4 for the assembly The heater thermocouple converter is designed to be replaced as a single unit 1 Turn off the power to the M200A and allow the converter to cool 2 Remove the entire assembly from the chassis A Remove the pneumatic fittings from the valves B Remove the power to the valves thermocouple wire and cartridge heater C Remove the converter assembly from the chassis by loosening the 4 captive screws that secure the assembly to the chassis CAUTION The converter operates at 315 C Severe burns can result if not enough time is allowed for the assembly to cool Do not handle assembly until it is at room temperature 2 Disconnect the gas fittings and power cable grounding from the can 4 Remove the valve assembly and bottom bracket and re attach those two parts to the replacement moly assembly 5 Re attach the pneumatic fittings and valve assembly to the can 6 Install the assembly back into the analyzer Re attach the electrical and pneumatic fittings Leak check the assembly when completed Turn the power back on The insulation ca
43. 9 3 1 2 Single Board Computer The SBC40 is a full function computer designed for instrument control applications It consists of a 16 bit 8080 microprocessor 2 serial and one parallel ports standard bus interface and 4 sockets for memory The memory sockets consist of 256k ROM containing the multitasking operating system and application code 8k EE prom containing the setup variables 256k RAM containing data collected by the instrument and a time of day clock to provide event timing services The overall function of this board is quite complex Complete testing of this board s functions is not possible in the field 9 35 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 DE UU JUV UCU 111 Dem 5 SIL O X O O 1 O oa oa oa oa DO oa DO DO DO RN um gt oa DO oa I DO TL DO DO N DO d Table 9 9 8 CPU Board Jumper Settings 9 36 PRI
44. CAUTION The analyzer should only be used for the purpose and in the manner described in this manual If you use the analyzer in a manner other than that for which it was intended unpredictable behavior could ensue with possible hazardous consequences i PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 THIS PAGE IS INTENTIONALLY LEFT BLANK ii PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 TABLE OF CONTENTS SAFETY MESSAGES ii I TABLE OF CONTENT S 4 lia nein III EISTOE O LES POF TABLES Sa ia 1 HOW USE THIS MANUAL u c ease su out ns oco sensanen nti 1 1 2 GETTING STARTED 2 1 2 E UNPACKING bd orit o e te tti toe A AE EEE 2 1 2 2 ELECTRICAL AND PNEUMATIC 8 2 20000 0 01 00010000000000000000 2 1 2 3 INITIAL OPERATION C rect a es ett eee AA ra Min E 2 6 3 SPECIFICATIONS AGENCY APPROVALS 3 1 SA SPECIEICATIONS 1 50 eto SI Sabes 3 1 3 2 EPA EQUIVALENCY DESIGNATION occcccccccccononcncnonononononononononononononononononononononononononinoninininininicininininess 3 2 9 9 WARRANTY Sato A frt utu oes utter utt ee 3 3 4 THE M200A NOx ANALYZER 4 1 4 1 PRINCIPLE
45. Calibration curves or relationships should be obtained for each range used 7 34 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 10 Calibration Quality After calibration is complete it is very important to check the QUALITY of the calibration The calibration of the M200A involves balancing several sections of electronics and software to achieve an optimum balance of accuracy noise linearity and dynamic range The following procedure checks the Slope and Offset parameters in the equations used to compute the NO and NO concentrations It is important that they fall within certain limits with respect to themselves and to each other For an explanation of the use of these terms in the concentration calculation see Section 5 2 2 5 The slope and offset parameters are similar to the span and zero pots on an analog instrument Just as in the analog instrument if the slope or offset get outside of a certain range the instrument will not perform as well The slope value will be slightly different on the NO and NO channels This is due to slight differences in pneumatic resistance in each pathway If the slopes are significantly different there is a calibration error or a cross port leak in the switching valve If there is a sudden change in slopes after a calibration that usually indicates a change in reaction cell pressure This generally requires a Factory Calibratio
46. DCN 5247 6 3 Internal Zero Span IZS The IZS option includes the Zero Span Valves described above a temperature controlled permeation tube oven and a rear panel mounted zero air scrubber The IZS system is activated by the same methods as described in Table 6 1 for the zero span valves The setup of the IZS is the same as that ofthe valves and is described in Table 6 2 The IZS system operation is similar to the zero span valve operation except that the source of the zero air and span gas are supplied at the analyzer via a scrubber and permeation tube respectively See Section 7 1 calibration for operational details A continuous purge flow of approximately 60 cc min is drawn across the permeation tube to prevent span gas accumulation when the permeation tube is not in use If the instrument is going to be turned off for more than 8 hours the permeation tube must be removed from the oven The perm tube continues to release gas even while at room temp thus causing high concentrations of NO gas to accumulate The high NO levels cause high background readings when operation is resumed 6 4 Autocal Setup of IZS and Zero Span Valves The Autocal system operates by executing SEQUENCES It is possible to enable up to 3 sequences each sequence operates in one of 4 MODES Table 6 6 2 IZS Sequence Modes Mode No Mode Name Action 1 Disabled Disables the Sequence Zi Zero Does a Zero Calibration 3 Zero
47. NEXT button When appears press ENTR to turn it on 9 16 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 3 The value in PMT should come up to 2000 mV 500 mV in less than 15 sec If the HVPS or the span gain adjust on the preamp card has been changed without doing a FACTORY CALIBRATE the reading in step 3 may be different than 2000 mV since the overall calibration affects ELECTRIC TEST See Section 9 1 6 for factory calibration procedure 4 To turn off ET press EXIT If ET is a steady 2000 500 mV that means the Power Supply Module Preamp buffer amplifier V F CPU and display are all working properly 9 1 3 3 Optic Test Optic test turns on a small LED inside the PMT housing which simulates the signal from the reaction cell OT tests the entire signal detection subsystem By observing the level noise and drift of this test correct operation of many sections of the analyzer can be verified The implementation of OT involves several changes to the instrument operating conditions The M200A does the following when switching to optic test 1 Saves the current instrument setup as to autorange indep range current range and places the instrument into the 2000 ppb range 2 Turns off power to the ozone generator to assure there is no interfering light from the reaction cell 3 Disables the AUTOZERO circuit 4 Turns on the OT LED the PMT reading
48. OF OPERATION Ede de ri ede a a 4 1 4 2 SUMMARY scatet RR ea 4 3 4 2 1 Sensor Module Reaction Cell Detector 4 3 4 2 2 Pneumatic Sensor Board 0 4 3 4 2 3 Computer Hardware and RR Rn 4 4 LLAVE BA eee he ee HE 4 4 4 25 Front Rente ee 4 4 1 2 6 Power Supply Module rer se alari 4 6 4 2 7 Pump Valves Pneumatic System se een 4 6 4 2 8 Ozone Generator eet cheese Certe 4 9 4 2 9 Molydben m iConvettet aede coit teo ite ur eio ecu ue eia iri de iot e dde ains 4 9 5 SOFTWARE enter casae dene 5 1 5 1 INDEX TO FRONT PANEL 8 04 21 1 00 0001000000000000000000000 5 1 SAME MED a Sa loin et alae ure o e 5 4 REI PR IA EIA 5 5 92 SAMPLE MODE MEL ni 5 8 5 2 IxTesb FUNCHONS 1o ed ei Ana len see 5 8 iil PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 2 2 CAL CALS CALZ Calibration Functions 000000 5 12 53 SET UP UC 5 14 5 3 1 Configuration Information E L8 S C Tm 5 14 25 0 2 Aubomalle Calibration ALe 5 14 5 3 3 Data Acquisition System DAS ne
49. ON and observe the front panel display As the machine goes through the setup the version number will be displayed on the front panel It should read the same as the version number printed on the prom Re enter any non default settings such as RANGE or AUTOCAL Re enter the SPAN values in the CAL CONC menu Check all settings to make sure that expected setup parameters are present Re calibrate the Analyzer so that the default slope and intercept are overwritten with the correct values 8 16 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 TROUBLESHOOTING ADJUSTMENTS NOTE The operations outlined in this chapter are to be performed by qualified maintenance personnel only This section of the manual contains information on diagnosing and repairing instrument performance problems It contains information on how to use and interpret TEST and DIAGNOSTIC data as well as WARNING messages the instrument generates There is information on how to troubleshoot the instrument subsystems Finally there is information to perform adjustments such as DAC calibration procedures This manual provides troubleshooting procedures that address problems to the board level For component level troubleshooting consult the schematics for the appropriate board in Appendix NOTE The values of the readings shown on the front panel of the instrument may at times r
50. Reaction Cell Window Clean annually or as necessary Section 9 3 8 Table 8 8 5 Ozone Flow Check every year Table 9 9 20 Section 9 3 7 Sample Flow Check every year Table 9 9 20 Section 9 3 7 Moly Converter Check efficiency every 6 months Table 8 8 4 Section 8 6 Pneumatic Lines Examine every 12 months clean if necessary Table 8 8 6 Table 8 8 7 Table 8 8 8 Factory Calibration Calibrate each year or after repairs Section 9 1 6 Leak Check Check every year Section 8 9 O rings Replace if seal is broken Table 9 9 20 Table 9 9 21 8 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 8 8 2 Preventative Maintenance Schedule Item Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Interval TEST Functions Functions intervals Zero Span Annually or after Calibration io I Checks qa Particulate Filter aa __ Weekly as needed Feil O N A E Pump Pack every 3 months Ec I II Scrubber months dg jb Drier months months NL 1 4 a Window necessary Ozone Ozone Flow Check every year mc Flow Check every ycar efficienc 12 Pneumatic Lines months clean if necessary pee N N N EET Leak Check Check ever
51. Select RCELL_PRESS by using the NEXT PREV keys 2 Adjust 2 to read 1450 mV which will give approximately the correct pressure 3 Press EXIT to return to the SAMPLE mode Select RCEL TEST function Use a calibrated absolute pressure meter to make small adjustments to R2 until the correct absolute pressure is displayed The target value is about 5 in Hg A for the external Thomas pump in good condition at sea level To adjust the SAMPLE FLOW 9 57 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 1 In SAMPLE mode scroll the TEST functions to SAMP FLW Observe the reading Then subtract the observed reading from the desired reading Go to the VARS menu by SETUP MORE VARS then pressing ENTR Scroll to SFLOW_SET and press EDIT The first value displayed is the SFLOW_SET VALUE reading ADD the value from step 1 to the reading shown and key in the new reading then press ENTR Check the low and high warning limits which are displayed as the next 2 values to make sure the new value does not exceed the warning limits Press exit to return to SAMPLE mode Observe the SAMP FLW value If necessary repeat step 2 to adjust the reading again to match the desired flow rate 9 58 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 REF DES EF DE REF DES EF DE
52. accepted The original value remains unchanged 4 2 5 2 Status LED s At the right of the display there are 3 status LED s They can be in three states OFF ON and Blinking The meanings of the LED s are given in Table 4 4 2 Table 4 4 2 Front Panel Status LED s LED State Meaning Green On Monitoring normally taking DAS data Off NOT monitoring DAS disabled Blinking Monitoring DAS in HOLDOFF mode 1 Yellow Off Auto cal disabled On Auto Dynamic cal enabled Blinking Calibrating Red Off No warnings exist Blinking Warnings exist 1 This occurs during Calibration DAS holdoff power up holdoff and when in Diagnostic mode 4 2 5 3 Power Switch The power switch has two functions The rocker switch controls overall power to the instrument in addition is a circuit breaker If attempts to power up the M200A result in a circuit breaker trip the switch automatically returns to the off position and the instrument will not power up 4 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 4 2 6 Power Supply Module The Power supply module supplies AC and DC power to the rest of the instrument It consists of a four output linear DC power supply and a 15 volt switching supply In addition it contains the switching circuitry to drive the DC operated valves and several switched AC loads that operate the Rx cell IZS and molybdenum converte
53. amuch lower concentration than is actually present in the stack The software scales the diluted sample gas concentration readings so that the outputs show the actual stack concentrations Also when calibrating the instrument or setting the ranges the values selected are scaled to reflect the actual stack concentrations The scaled readings are sent to the display analog outputs and RS 232 port 5 17 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 To use the Dilution feature 1 SELECT UNITS For stack measurement select PPM units To set units press SETUP RANGE UNIT PPM Press ENTR after the unit selection is made then EXIT to return to upper level menus SET DILUTION RATIO The dilution ratio of the probe is entered by SETUP RANGE DIL Accepted values are 1 to 1000 Press ENTR and EXIT to return to upper level menus A value of 1 disables the dilution feature SELECT RANGE The range selection is the same with dilution as with normal monitoring See Section 5 3 4 for information on range selection You should note however the value entered should be the actual concentration of the calibration gas entering the dilution probe The units of this number is ppm CALIBRATION When the above selections have been made the instrument now must be calibrated through the dilution probe NOTE Units are now in PPM See Section 7 for calibration metho
54. designed and tested to operate properly during the year 2000 calendar rollover 5 3 7 Diagnostic Mode The M200A Diagnostic Mode allows additional tests and calibrations of the instrument These features are separate from the TEST functions because each DIAG function has the ability to alter or disable the output of the instrument While in DIAG mode no data is placed in the DAS averages Details on the use of Diagnostic mode are in Section 9 1 3 5 3 8 Communications Menu The COMM menu allows the RS 232 BAUD rate to be set To set the BAUD rate press SETUP MORE COMM BAUD select the appropriate BAUD rate then press ENTR The instrument ID number can also be set This ID number is attached to every RS 232 message sent by the M200A To set the ID press SETUP MORE COMM ID and enter a 4 digit number from 0000 9999 then press ENTR 5 20 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 3 9 Variables Menu VARS This menu enables you to change the settings on certain internal variables The VARS Table 9 9 5 is located in the Troubleshooting Section 9 1 4 5 3 10 M200A Operating Modes The M200A has 2 main operating modes which were discussed in earlier in this section namely SAMPLE and SETUP modes In addition there are other modes of operation when the instrument is being diagnosed or calibrated A list of M200A operating modes is given in Table 5 5 9 5 21
55. desired compensation for moly converter efficiency CE can be included in the NOx concentration calculation The CE must be entered prior to calibration Refer to Section 7 8 6 for the CE procedure Table 7 7 5 Manual Span Calibration Procedure Span Gas thru Sample Port Step Number Action Comment 1 Press CAL The M200A enters the calibrate mode NO span gas should be fed to the sample port 2 Wait 10 min Wait for reading to stabilize at span value 3 Press SPAN If you change your mind after pressing SPAN you can still press EXIT here without spanning the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations and causes the instrument to read the NO and NO span concentrations 5 Press EXIT M200A returns to sampling Immediately after calibration data is not added to the DAS averages 7 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 2 Manual Zero Span Check or Calibration with Zero Span Valves Option The Zero Span valve option can be operated from the front panel keyboard In the Zero Span valve option the zero and span gas come into the valves through ports on the rear panel of the instrument Table 7 7 6 Manual Zero Calibration Procedure Z S Valves StepNumber Action Comment 1 Press CALZ The analyzer enters the zero calibrate mode This switches
56. fitting and at all the joints of the reaction cell The PMT value should not respond to the light If there is a response tighten the joints or replace the tubing with new black PTFE tubing We often find light leaks are caused by o rings being left out of the assembly 8 11 Prom Replacement Procedure Preparation If any setup changes such as RANGE AUTOCAL IZS ON OFF etc have been made record the changes because all settings should be checked after the PROM is changed See Table 9 9 8 for location of prom on CPU card 1 2 Turn the machine off Remove the hold down screw that holds in the V F CPU assembly to the motherboard Disconnect the J9 power connector from the motherboard Gently lift the assembly far enough out of the instrument to remove the connector to the display and the RS 232 connector The CPU board is attached to the larger V F board Remove the board laying it down on an insulating surface such that the board edge pins on the PCB are on the left The PROM chip should be at the top center The current chip should be labeled with something like 210H9 See Table 9 9 8 for prom location Gently pry the chip from its socket and replace it with the new chip Install the chip in the left end of the socket with the notch facing to the right Make sure that all of the legs insert into the socket correctly Re attach the CPU board to the V F board and re attach the assembly to the motherboard Turn the M200A
57. for leaks and correct operation Zero gas that isn t really zero Make sure you re not trying to zero the machine with ambient air or span gas AutoZero filter is corrupted with high readings To clear the AutoZero filter input zero gas and wait for 15 minutes for the filter to clear 9 32 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 10 Non Linear Response Common causes are 1 Leak pneumatic system see Section 8 9 2 High zero background the PMT TEST function should be near 50 mV with zero gas Readings above 100 mV indicate a light leak contaminated reaction cell bad zero gas or wet air coming into the ozone generator If the reading is not less than 150 mV the instrument will not zero or span properly Check Section 9 2 9 3 Calibration device in error re check flowrates and concentrations Especially at low concentrations If you are using a Mass Flow calibrator and the flow is lt 10 of the full scale flow on either flowmeter you may need to purchase lower concentration standards 4 The standard gasses may be mis labeled as to type or concentration Labeled concentrations may be outside the certified tolerance 5 Contamination in sample delivery system A Dirt in sample lines or reaction cell w Contaminated cal gas source NO in NO cal gas is common C Dilution air contains sample or span gas 6 Ozone concentration too
58. front panel When the test is halted square brackets are placed around the percentage value in the display Pressing the key again resumes the test This test is useful for testing the accuracy linearity ofthe analog outputs 9 1 3 6 DAC Calibration The Digital to Analog Converters DAC are calibrated when the instrument is set up at the factory Re calibration is usually not necessary but is provided here in case the V F board needs to be replaced and re calibrated The procedure for using the DAC Calibration routines are in the Troubleshooting Section 9 3 3 1 9 1 3 7 RS 232 Port Test This test is used to verify the operation ofthe RS 232 port It outputs a 1 second burst of the the ASCII letter w During the test it should be possible to detect the presence of the signal with a DVM on 2 or 3 depending on the DTE DCE switch setting or by the flickering of the red test LED A detailed procedure is given in the Troubleshooting Section 9 3 2 9 1 4 M200A Internal Variables The M200A software contains many adjustable parameters Most of the parameters are set at time of manufacture and do not need to be adjusted for the lifetime of the instrument Some of the variables are user adjustable they are listed in Table 9 9 5 To access the VARS menu press SETUP MORE VARS ENTR Use the PREV NEXT buttons to select the variable of interest then press EDIT to examine change the value then press ENTR to save the new value and return to th
59. gas concentration 2 Key in expected Enter the expected NO cal gas concentration We suggest you NO concentration generate concentration of 80 of current range Then ENTR 3 Press CAL CONC Reset the previous converter efficiency value to 1 00 MOLY SET Set CE to 1 0000 4 Press CAL CONC Allow the NO concentration reading to stabilize It may take CONV CAL wait time for the ENTR button to appear because the only valid 10 min Then press values for CE are 96 to 1 02 The ENTR button will not come ENTR on unless the value is in this range When ENTR is pressed the M200A will compute the ratio of observed NO concentration to expected NO concentration and store the ratio 5 Press SET After the instrument calculates the CE it is good practice to check the ratio 6 Press EXIT The M200A will now compensate all readings for this converter efficiency value 7 26 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 7 Calibration Frequency To ensure accurate measurements ofthe NO NO and NO concentrations calibrate the analyzer at the time of installation and re calibrate it 1 No later than three months after the most recent calibration or performance audit which indicated analyzer calibration to be acceptable An interruption of more than a few days in analyzer operation Any repairs which might affect its calibration Physic
60. hours at 50 C to reach a stable output We recommend waiting this long before any calibration checks adjustments or conclusions are reached about the permeation tube 8 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 NOTE If the instrument is to be turned off for more than 8 hours the perm tube must be removed from the IZS oven Even at room temperature the perm tube continues to release Concentrations can build up to very high levels inside the instrument causing contamination and high background readings 8 5 Replacing the IZS Zero Air Scrubber The IZS zero air scrubber is located on the rear panel of the instrument Refer to Table 8 8 1 for recommended replacement interval The entire cartridge can be replaced or just the charcoal and Purafil inside the cartridge To replace the scrubber materials 1 Disconnect the scrubber from the rear panel pneumatic fitting and remove from the hold down clip While removing the cartridge check the DFU filter for contamination and dirt replace if necessary 2 Unscrew the top remove the felt pad and empty the contents 3 Inspect the upper and lower felt pads for signs of plugging replace if necessary 4 Replace with 50 Purafil upstream and 50 charcoal downstream 5 Re install felt pad screen and re tighten cap Make sure the o ring in the cap is in good shape and squarely seated
61. in TEST functions should be 2000 1000 mV To turn on OT press SETUP MORE DIAG then scroll to OPTIC TEST then press ENTR If the HVPS or the span gain adjust on the preamp card has been changed without doing a FACTORY CALIBRATE the reading in step 4 may be different than 2000 mV since the overall calibration affects OPTIC TEST See Section 9 1 6 for factory calibration procedure 9 1 3 4 Ozone Gen Power This diagnostic manually turns the power off and on to the ozone generator When the M200A is powered up from a cold start the ozone generator is not immediately started This is due to the fact that humid air may be present in the generator cartridge Humid air can produce nitric acid aerosol which can permanently damage parts of the instrument down stream of the generator Using this diagnostic it is possible to turn on the generator before the warmup time has elapsed If you turn the power on it will remain on after you exit the diagnostic 9 17 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 1 3 5 Analog Out Step Test The Step Test is used to test the functioning of the 4 DAC outputs on the V F board The test consists of stepping each analog output 0 20 40 60 80 100 of the output Ifthe analog outputs set for 0 5 full scale the outputs would step 0 1 2 3 4 5 VDC The stepping can be halted at any value by pressing the key under the percentage on the
62. n ina TRO ERE TN el Een RA 2 75 min 80984 min 24 5 cm min 260 cm min 5 Verify that residence time tr in the reaction chamber is lt 2 min using Equation 7 5 3 fe m 0 63 min 260 cm min 24 5 emi min 6 Verify the dynamic parameter specification Pr of the calibrator reaction chamber using Equation 7 6 3 3 Pr 50 5 ppm x 24 180 2 75 ppm min 260 cm min 24 5 min 260 cm min 24 5 cm min 7 Calculate the diluent air flow required at the mixing chamber using Equation 7 7 Fp 2750 cm min 260 min 24 5 cm min 2465 5 cm min 7 19 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 5 Dynamic Multipoint Calibration Procedure The procedure for calibration of chemiluminescent NO analyzers by GPT is specified in the Federal Register This section applies the general procedure to the specific case of the M200A Calibration must be performed with a calibrator that meets all conditions specified in Subsection 2 3 2 Handbook Flow settings used in the GPT calibration for must be determined as illustrated in Section 7 8 4 this manual The user should be sure that all flow meters are calibrated under the conditions of use against a reliable standard All volumetric flow rates should be corrected to 25 C 78 F and 760 mm 29 92
63. port is not working check the following Physical Wiring First is to get the physical wiring hooked up correctly Refer to Table 9 9 9 for the wiring diagram of the DB 9 plug on the M200A rear panel There 2 features that make connecting the wiring easier First is the red green LED s on the rear panel The M200A provides the power to run the red LED the external equipment will provide the power for the green LED If the wiring is hooked up correctly both LED s will be illuminated Secondly there is a DTE DCE switch this switch interchanges pin 2 amp 3 on the DB 9 connector Set the DTE DCE switch so that both LED s are illuminated RS 232 Protocol BAUD rate Data bits Parity Second is to get the communication protocol for each instrument to match In Table 9 9 9 the default RS 232 parameters are listed The BAUD rate can be changed in the software menus under SETUP MORE COMM BAUD Data Communications Software for a PC You will need to purchase a software package so your computer can transmit and receive on its serial port There are many such programs we use PROCOMM at Teledyne API Once you set up the variables in PROCOMM and your wiring connections are correct you will be able to communicate with the analyzer If connecting to a modem check the following Modems are especially difficult because they may have pins that need to be at certain levels before the modem will transmit data The most common requirement is
64. ppb The range is the concentration value that equals the maximum voltage output on the rear panel of the instrument If the range you select is between 50 and 2000 ppb the front panel will read the concentration anywhere from 0 to 2000 ppb regardless of the range selected If the range selected is from 2001 to 20 000 ppb the front panel will read from 0 to 20 000 ppb The apparently wider range of front panel readouts is because the M200A has 2 internal hardware ranges namely 0 2000 ppb and 0 20 000 ppb The analog output is scaled for the range selected however the front panel reading can display correct concentrations over the entire physical range Only one of the following range choices can be active at any one time If the range is changed such that the physical range switches the instrument should be recalibrated Since the gain is 10x lower on the 0 20 000 ppb range the offsets may be a factor of 10 less also NOTE There are 3 range modes 1 Single Range 2 Auto Range 3 Independent Ranges 5 16 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 3 4 1 Single Range This range option selects a single range for all output channels NO of the M200A To select Single Range press SETUP RNGE MODE SING then press ENTR To set the value for the range press SETUP RNGE SET enter the full scale range desired from 50 ppb to 20 0
65. reaction cell which is maintained at about one quarter of atmospheric pressure The second pressure sensor measures the pressure just upstream of the reaction cell which is near ambient pressure From these two pressures the sample flow rate can be computed and is displayed as sample flow in the TEST menu Finally a solid state flow meter measures the ozone flow directly Likewise it is displayed as a TEST function The M200A displays all pressures in inches of mercury absolute in Hg A Absolute pressure is the reading referenced to a vacuum or zero absolute pressure This method was chosen so that ambiguities of pressure relative to ambient pressure can be avoided For example ifthe vacuum reading is 25 Hg relative to room pressure at sea level the absolute pressure would be 5 Hg Ifthe same absolute pressure was observed at 5000 ft altitude where the atmospheric pressure was 5 lower the relative pressure would drop to 20 Hg however the absolute pressure would remain the same 5 Hg A 4 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 4 2 3 Computer Hardware and Software CPU Board The M200A Analyzer is operated by an NEC V40 microprocessor Computer communication is done via 2 major hardware assemblies the V F board and the front panel display keyboard The computer s multitasking operating system allows it to control the instrument monitor test points gene
66. reset RAM INITIALIZED RAM was erased The RAM contains the DAS averages which get erased when the RAM is initialized It also contains temporary data used by the M200A to calculate concentrations No setup variables are stored in the RAM SAMPLE FLOW WARN The calculated sample flow is outside the hi low limits Since the flow is calculated it probably means the pressure has gotten too low This can be caused by a plugged sample inlet or water in ozone line into the reaction cell OZONE FLOW WARNING Ozone flow out of spec warnings occur most often because of loss of vacuum which causes the ozone flow to go to zero They also can occur due to a flow sensor failure RxCELL PRESS WARNING Vacuum out of spec warnings are caused by leaks pump failure or disconnected pump BOX TEMP WARNING Box temp out of spec Instrument fan failure enclosure temperature failure Operation of the M200A in a too warm or cold environment will cause degradation of data quality and shorten the life of the instrument RCELL TEMP WARNING Reaction cell temp out of spec The warning message is most often present during initial warm up or if the connector to the heaters is not plugged in after dis assembly It has also occurred if the thermistor is not in position in the reaction cell IZS TEMP WARNING IZS temp out of spec The warning message is most often present during initial warm up or if the connector to th
67. that the voltage level on Pin 8 of the Analyzer is between 5V and 15V This pin should be connected through the cable to Pin 4 of the modem Now set the baud rate of the Analyzer to the speed required by the modem and it should work If you are still experiencing problems a cable adapter may be needed Please contact the factory for assistance 9 3 2 2 RS 232 Diagnostic There are several features of the M200A to make connecting to RS 232 and diagnosing RS 232 faults easier There are two LED s on the rear panel Connector Board 01114 which are connected to pin 2 and 3 of the DB 9 connector on the board If the switch is in the DCE position default the red LED is connected to pin 3 of the DB 9 connector When data is transmitted by the M200A the red LED will flicker indicating data present on this line When the M200A is running the LED will normally be ON indicating logic low A one second burst of data can be transmitted over the port by a command in the DIAGNOSTIC menu Press SETUP MORE DIAG then scroll to RS232 OUTPUT Each time you press ENTR the instrument transmits a 1 sec burst of lower m case W S The green LED is connected to pin 2 if the switch is in default DCE position This is the pin on which the M200A receives data The LED is ON if an outside device is connected This LED gets its power from the outside device When data is being transmitted by the outside device to the M200A this LED will flicker When
68. then routes the sample stream through a converter containing heated molybdenum to reduce any NO present to NO by the following reaction 315 3 NO2 Mo gt 3NO The Analyzer now measures the total NO concentration The NO and NO values are subtracted from each other by the built in computer yielding the NO2 concentration The three results NO NOx and NO are then further processed and stored by the computer yielding several instantaneous and long term averages of all three components These readings are also stored internally in the M200A s data acquisition system DAS The software uses an adaptive filter to accomodate rapid changes in concentration The algorithm monitors the rate of change in concentration for both the NO and NO channels When a change in concentration is detected the software changes the sample filters to rapidly respond to the change The filters are adjusted to minimize the errors introduced by the time delay between the NO and NO channel measurements this assures accurate NO measurements When the rate of change decreases the filters are lengthened to provide good signal noise ratio The parameters used to operate the adaptive filter have been tuned to match the electrical and pneumatic characteristics of the M200A 4 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247
69. you are attempting to configure the RS 232 port if either of the LED s go out when the cable is connected that generally means that there is a grounding problem Switching the DCE DTE switch should fix the problem See the schematic and assembly drawings in the appendix 9 39 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 DES PIN FUNCTION 00000 TX DATA RX DATA A ry a SIG GROUNI eo 3 BAUD IBEFAULT DATA BIT BIT NO PARITY ETTABLE BAUL ITCH SETTABI ON REAR PANEL CONNECTOR BOARI Table 9 9 9 RS 232 PIN Assignments 9 40 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 3 Voltage Frequency V F Board The V F Board consists of 16 analog input channels each software addressable 8 digital inputs and 24 digital outputs each line independently addressable and 4 independent analog output channels The analog input channels are connected to V F converter capable of 80 000 counts which is approximately 16 bit resolution The integration period is software selectable from 40msec to 2 4 sec Commands from the SBC40 computer and digitized values from the V F section of the board are sent via the STD bus interface The schematic for the board is in the Appendix 00514 The o
70. zero 4 Scroll the TEST The instrument will now display the NO OFFSET value It function menu until should also have a value near zero 0 0 150 mV the NO OFFSET is displayed Step 4 The M200A is now ready to measure sample gas 2 9 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 pe Ly en 2 rm TO 5 c Lu al Lo a LL e 1 3 Li Li N 2 a LJ i gt Y 2 EE n y i LL Y LN Ay 5 7 I 2 L EE Table 2 2 4 Front Panel 2 10 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247
71. 0 80 100 of whatever voltage range has been selected For example the voltages would be 0 1 2 3 4 5V if the 5V range had been selected 9 41 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 4 Use a DVM on each of the analog output channels to confirm the correct voltages Ifthe voltages step but are the wrong values the V F board may be out of calibration See Section 9 3 3 for information on how to calibrate the V F board 5 Digital input channel test The digital I O section of the V F board has 8 input bits and 24 output bits Two of the 8 input bits are assigned as calibration controls See Section 7 7 for information on calibration using external contact closures To test the digital inputs A Turn on M200A B Connect a jumper wire across pins 1 and 2 of the rear panel connector as shown in Table 2 2 2 Shortly after closure is made the instrument should switch into zero mode as indicated on the front panel display D Remove the jumper 6 Digital output channel test There are 24 output bits on the V F board The 24 bits are made up of 3 8 bit ports It is possible for a single 8 bit port or even a single bit within a port to fail A quick observational test of the digital outputs is to observe the LED s in the Power Supply Module Refer to Table 9 9 15 for the location of the LED s in the PSM The state of the LED s can be c
72. 0 nne s ese ente tenen 6 5 TABLE 6 6 6 IZS OPTION PERMEATION TUBE 2 000000 0 000 00006 6 7 TABLE 7 7 1 TYPES OF ZERO SPAN CHECK AND CALIBRATION cri 7 2 TABEE 72752 CALIBRATION SETUP asin cn te detis tete t tees 7 3 TABLE 7 7 3 MANUAL ZERO CALIBRATION PROCEDURE ZERO GAS THRU SAMPLE PORT 7 4 viii PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 TABLE 7 7 4 ENTER EXPECTED SPAN GAS CONCENTRATIONS PROCEDURE i 7 5 TABLE 7 7 5 MANUAL SPAN CALIBRATION PROCEDURE SPAN GAS THRU SAMPLE PORT 7 5 TABLE 7 7 6 MANUAL ZERO CALIBRATION PROCEDURE Z S VALVES i 7 6 TABLE 7 7 7 MANUAL SPAN CALIBRATION PROCEDURE Z S VALVES 7 6 TABLE 7 7 8 ENABLING DYNAMIC ZERO SPAN iui a Re aan 7 8 TABLE 7 7 9 ENABLING 2 1 1 06 eren nenne tenen enses ense entera s 7 10 TABLE 7 7 10 IZS OR Z S VALVES MODES WITH REMOTE CONTACT CLOSURE cene 7 11 TABLE 7 7 11 ACTIVITY MATRIX FOR CALIBRATION EQUIPMENT AND SUPPLIES 0 7 13 TABLE 7 7 12 ACTIVITY MATRIX FOR CALIBRATION PROCEDURE 0000 0 00 7 14 TABLE 7 7 13 DIAGRAM OF GPT CALIBRATION SYSTEM i 7 21
73. 00 ppm then press ENTR 5 3 4 2 Auto Range Auto Range allows the NO NO outputs to automatically range between a low range and a high range There is only one low range and one high range for all outputs The Hi range mode is signaled by a bit on the STATUS option see Table 5 5 10 When the instrument output reaches 98 of the low range it will automatically switch into Hi range In Hi range when the output decreases to 75 of low range it will change to the lower range If you select a Hi range that is less than Low range the M200A will remain locked in Low range and behave as a Single Range instrument To set up Auto Range press SETUP RNGE MODE AUTO then press ENTR To set the values press SETUP RNGE SET The M200A will prompt you for LO then HI which is the lower and upper ranges of Auto Range Key in the values desired then press ENTR 5 3 4 3 Independent Ranges Independent Ranges allows you to select different ranges for NO NO and NO To set up Independent Ranges press SETUP RNGE MODE IND then press ENTR To set the values press SETUP RNGE SET The M200A will prompt you for the range of NO NOx and NO channels Key in the desired range for each channel press ENTR after each value 5 3 4 4 Dilution Ratio The dilution feature allows the M200A display the undiluted concentration of a sample collected with a stack dilution probe The dilution probe dilutes the gas by a fixed ratio so the analyzer is actually detects
74. 00001 Br Torna ovo Ta 9 52 2 Table 10 8 MODEL 2004 47 mm Filter Expendables Kit with CH1 10 7 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 0896000 AKIT EXPEND 6LBS ACT CHARCOAL 0096600 AKIT TFE FLTR ELEMENT 7 MM4 IUMQ 71 mms Ta FILTER Dru TI CN SSCS 10 8 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 APPENDIX A ELECTRICAL SCHEMATICS Table A 1 Electrical Schematics table continued A 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table A 1 Electrical Schematics Continued A 2 PRINTED DOCUMENTS ARE UNCONTROLLED
75. 10 M200A SPARE PARTS LIST e ee ee eee en nono oer e eae teen oa e eee e eaae een aee 10 1 APPENDIX A ELECTRICAL SCHEMATICS eene A 1 vi PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 LIST OF FIGURES FIGURE 2 1 REMOVAL OF SHIPPING SCREWS amp CHECK FOR CORRECT POWER ee 2 3 FIGURE 2 27 REAR PANEL iia E de teo tet ied optet E 2 4 FIGURE 2 3 INLET AND EXHAUST 2 1 02 2 2 0600000000000000000000000000000 2 5 FIGURE 2 4 FRONT PANEL 1 27 1 7200 0 00 00001000000000000000000 eene tenen nnns essen ente tern anas e tette nnn 2 10 FIGURE 2 5 ASSEMBLY LAYOUT icit ee rete Pact te YR eU RER ae in 2 11 FIGURE 4 1 BLOCK 1 en n nennen enne seen ettet e esee nente tena senes eene nane 4 2 FIG RE 4 2 EXTERNAL PUMP u a kai tea EE S ge late had kind 4 8 FIGURE 5 1 SAMPLE MEN VRBE etaed Fas 5 2 FIGURE 5 2 SETUP MENU TREE ien 5 3 FIGURE 6 1 IZS OPTION PERMEATION TUBE INSTALLATION 6 7 FIGURE 7 1 CALIBRATION SETUP eee 7 3 FIGURE 7 2 DIAGRAM OF GPT CALIBRATION SYSTEM een 7 21 FIGURE 8 1 REPLACING THE PARTICULATE FILTER
76. 10 Move down 10 entries in the 5 3 3 DAS data buffer NEXT Move up the DAS data buffer 5 3 3 to display more recent data NEXTIO Move up 10 entries in the 5 3 3 DAS data buffer 5 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 5 M200A Menu Structure Setup Menu 2 Setup Menu 2 Level 1 Level 2 Level 3 Level 4 Description Section RANGE Range control menu 5 3 4 MODE Range mode select Single 5 3 4 Autorange Independent SET Sets range if mode is Single 5 3 4 1 range NO Sets NO concentration if indep 5 3 4 3 ranges enabled NO Sets NO concentration if indep 5 3 4 3 ranges enabled NO Sets concentration if indep 5 3 4 3 ranges enabled LO Sets low range if Autorange 5 3 4 2 enabled HI Sets high range if Autorange 5 3 4 2 enabled UNITS Unit selection menu 5 3 4 5 PPB PPM Select units that instrument uses 5 3 4 5 UGM MGM DIL Enter dilution factor if 5 3 4 4 connected to stack dilution probe PASS Password enable disable menu 5 3 5 ON OFF Enable disable password 5 3 5 checking CLOCK TIME Adjusts time on the internal 5 3 6 time of day clock DATE Adjusts date on the internal 5 3 6 time of day clock MORE Continue menus on next level Table 5 5 4 down COMM RS 232 communications 5 3 8 5 5 control menu BAUD Sets the BAUD rate to 300 5 3 8 5 5 19 200 I
77. 100 mV output 6 ON Use for 100 mV output 9 44 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 1 After the switches jumpers are set turn on instrument power and complete the following A Press SETUP MORE DIAG then press ENTR Scroll to D A CALIBRATION press ENTR B Press ADC to select the first task which is to calibrate the A D converter Connect a DVM ground lead to TP3 AGND on the V F board Connect the positive lead to TP9 DACO D The M200A will display a voltage near 1 of the voltage range set in the above procedure See Table 9 9 12 for a table of approximate expected voltages Adjust R27 until the displayed voltage matches the DVM voltage then press ENTR E The M200A will display a voltage near 90 of the voltage range set in the above procedure Adjust R31 until the displayed voltage matches the DVM voltage then press ENTR This step calibrates the instrument A D converter to the external DVM F The M200A will automatically scroll through the DAC output channels calibrating each one The display will update the progress of the calibration If operating all analog outputs in voltage mode this completes the calibration procedure The calibration of each channel can be checked or recalibrated independently by scrolling the PREV NEXT buttons and pressing CAL for the desired channel Also a DC offset bias can
78. 13 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 THIS PAGE IS INTENTIONALLY LEFT BLANK 2 14 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 3 SPECIFICATIONS AGENCY APPROVALS WARRANTY 3 1 Specifications Ranges Range Modes Noise at Zero Noise at Span Lower Detectable Limit Zero Drift Zero Drift Span Drift Lag Time Rise Time Fall Time Sample Flow Rate Linearity Precision Temperature Range Temp Coefficient Humidity Voltage Coefficient Dimensions HxWxD Weight Analyzer Weight Analyzer Weight Ext Pump Pack Weight Internal Pump Power Analyzer Power Analyzer Power Ext Pump Power Ext Pump Power Int Pump Environmental Recorder Output Analog Resolution Status Option Measurement Units 2 Bi polar As defined USEPA Defined as twice the zero noise level At constant temperature and voltage increments from 50ppb to 20 000ppb Single Independent AutoRange 0 2 ppb RMS lt 0 5 of reading above 50 ppb 0 4 ppb RMS lt 0 5 ppb 24 hours 1 ppb 7 days lt 0 5 FS 7 days 20 sec 95 in lt 60 sec 95 in lt 60 sec 500 cc min 10 1 of full scale 0 5 ofreading 5 40 C lt 0 1 per C 0 95 RH non condensing lt 0 1 per V 7 x 17 x 23 6 18cm x 43cm x 61cm 43 lbs 20 kg w external pump
79. 4 Py Table 2 2 3 Inlet and Exhaust Venting 2 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 2 3 Initial Operation 1 Turn on the instrument power Zi The display should immediately light displaying the instrument type M200A and the computer s memory configuration If you are unfamiliar with the M200A we recommend that you read the overview Section 4 before proceeding A diagram of the software menu trees is in Table 5 5 1 and Table 5 5 2 3 The M200A requires about 30 minutes for all internal components to come up to temperature During this time the ozone generator power is OFF until the membrane dryer has time to purge itself therefore there will be no response from the instrument even if span gas is coming in the sample port During this time temperatures and other conditions are out of specification Because many warning conditions could be displayed warning conditions are suppressed for 30 minutes after power up After 30 minutes warning messages will be displayed until the respective warning conditions are within specifications Use the CLR key on the front panel to clear warning messages 4 While waiting for instrument temperatures to come up you can check for correct operation by using some of the M200A s diagnostic and test features da Examine the TEST functions by comparing the values listed in Tab
80. 47 9 10 11 Calculate the expected NORM mV reading For ranges up to 2000 ppb multiply the expected span value by 2 to get the mV reading For ranges 2001 to 20000 ppb multiply the expected span value by 2 to get the mV reading In this example the expected span gas concentration is 400 ppb and therefore the expected voltage is 800 mV As an alternate method the voltage can be determined from the graph in Table 9 9 7 On the Y axis find the calibration concentration in ppb then determine the expected voltage from the X axis Adjust S2 the HVPS coarse adjustment on the preamp board to the setting that produces a signal that is closest 800 mV Adjust S1 the HVPS fine adjustment to the setting that produces a signal that is closest to 800 mV Use R19 to trim the reading to 800 50 mV The readings will periodically go to zero as the AutoZero circuit operates ignore the zero readings Allow the instrument to sample span gas for 30 minutes Then do a span calibration by CAL SPAN ENTR After the span is completed do the span quality check procedure in Table 7 7 21 This procedure is extremely important to assure that the instrument will operate with optimum noise linearity and dynamic range 9 24 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247
81. 5247 4 2 8 Ozone Generator Because of the instability of ozone it is necessary to generate this gas inside the analyzer The ozone generation module consists of a high voltage AC supply and silent discharge tube and permeation type air drier A complete description of its function and service requirements can be found in Section 9 3 6 CAUTION Lethal voltages present inside ozone generator Do not defeat electrical interlock The dry air supply for the ozone generator uses a membrane drier to supply air with a dew point of 0 C or less The exhaust side of the membrane is connected to the vacuum manifold at the rear of the instrument Normal room air contains enough water vapor to damage the generator and components downstream To prevent damage the generator will be turned ON after 30 min following a cold start Otherwise the starting of the generator will follow the table below Table 4 4 4 Ozone Generator Start up Timing CHONG Instrument Action Power On ON If instrument has been off for less than 30 min OFF If instrument has been off for more than 30 min 4 2 9 Molydbenum Converter The molybdenum converter is a stainless steel cartridge containing molybdenum chips heated to 315 C The converter s function is to reduce nitrogen dioxide NO to nitric oxide NO The temperature control for this module is done by the computer 4 9 PRINTED DOCUMENTS ARE UNCONTROLLED Tel
82. 8 6 manually MSG Displays warning messages 9 1 2 CLR Clears warning messages 9 1 2 SETUP The SETUP Menu See next Table 5 5 4 table below 5 4 Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 1 2 Set Up Menu Table 5 5 4 M200A Setup Menu Structure Setup Menu 1 Level 1 Level 2 Level 3 Level 4 Description Reference Section CFG CFG is primarily used for 5 3 1 showing special configuration options and factory special software PREV PREV NEXT can be used to 5 3 1 NEXT LIST scroll through the configuration list LIST automatically scrolls the list AUTOCA Automatic span check or 5 3 2 6 4 L calibration SEQUENCE Selects Sequence 5 3 2 6 4 PREV Scrolls display to select 5 3 2 6 4 NEXT calibration sequence 1 2 or 3 MODE Selects mode of calibration 5 3 2 6 4 zero span zero span plus disable SET For a given Sequence and 5 3 2 6 4 Mode sets timing and calibration attributes DAS Data Acquisition 5 3 3 System DAS keeps 1 to 1500 minute averages of data VIEW Select which DAS data 5 3 3 collector to view PREV Scroll through data collectors 5 3 3 NEXT CONC PNUMTC CAL DAT The DAS data structure can be viewed as a list with the most recent data at the top The pointer is initialized at the top the most recent entry EDIT PREV Move down the DAS data 5 3 3 buffer to examine older data
83. 9 1 Zero Calibration with AutoRange or Independent Range Having one physical range to cover all EPA concentration ranges simplifies zero calibration No matter what AutoRange or Independent Range values are selected the values computed from a zero calibration are the same Therefore no special precautions need to be taken when doing a zero calibration 7 9 2 Span Calibration with AutoRange or Independent Range Observe the following guidelines when calibrating in AutoRange or Independent Range 1 When doing span calibration of the M200A use 80 of the highest of the ranges This will result in the most accurate calibration 2 When selecting concentrations for the NO NO or dynamic calibrations use 80 of the highest AutoRange or the highest Independent Range This will produce the most accurate calibration 3 If the calibration data is obtained from the RS 232 port or from the front panel display no special changes are necessary if the instrument is in AutoRange or Indep Range This is because the internal hardware and software has sufficient dynamic range to cover the entire EPA equivalent range also those features only affect the analog outputs 4 If using the analog outputs and a chart recorder or datalogger be sure to note when AutoRange occurs so that the correct range is used With Independent Ranges change the ranges so that all ranges are equal to the highest range so that all calibration data is on scale 5
84. 9 29 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NO Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 6 Unstable Span Common causes are Leak in pneumatic system Light leak check the sensor module with strong light Instrument not fully warmed up Sample lines or sample filter dirty clean or replace Plugged sample inlet orifice clean with methanol and sonic cleaner Defective HVPS see HVPS test procedure Bad or defective PMT detector replace Ra n gv Ux E qo Reaction cell temp not stable observe warning messages or RCELL TEMP in TEST functions Check diagnostic LED in Power Supply Module for normal cycling 9 Large variations in ambient temperature observe warning messages or BOX TEMP in TEST functions 10 Large variations in line voltage Line voltage should remain within 10 of nominal 11 Pump not maintaining steady vacuum observe warning messages or RCEL in TEST functions 12 Sample vent line too short allowing room air to mix with span gas Line should be a minimum of 15 long 13 Calibration gas source unstable if equipped with IZS option permeation tube could be nearing exhaustion or IZS oven temperature is unstable check warning messages or observe IZS TEMP in TEST function 14 128 permeation tube unstable IZS subsystem leaking leak check IZS zero air scrubber exhausted replace charcoal and Purafil A B Moly converter efficiency unst
85. A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 11 Activity Matrix for Calibration Equipment and Supplies and manifold glass or stainless steel Equipment Wen bate Frequency And Method Action If Requirements Supplies Of Measurement Are Not Met Recorder Compatible with output Check upon receipt Return equimpent to signal of analyzer min supplier chart width of 150 mm 6 in is recommended Sample line Constructed of PTFE Check upon receipt Return equipment to supplier standards Calibration Meets guide lines and See Section 2 3 9 Return equipment supplies equipment Section 2 3 2 Q A Handbook to supplier or take corrective Q A Handbook action Working Traceable to NIST SRM Analyzed against NIST Obtain new working standard NO Meets limits in traceability SRM see protocol in standard and check for cylinder gas or protocol for accuracy and Section 2 0 7 Q A traceability stability Section 2 0 7 Handbook permeation Q A Handbook tube Recording Develop standard forms N A Revise forms as appropriate forms Audit Must not be the same as System must be checked Loacte problem and correct equipment used for calibration out against known or return to supplier Calibrations should be carried out at the field monitoring site The Analyzer should be in operation for at least several hours preferably overnight before calibration so that it is
86. D Sets the instrument ID 5 3 8 5 5 included on all RS 232 messages Table 5 5 6 M200A Menu Structure Setup Menu 3 5 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 PRINTED DOCUMENTS ARE UNCONTROLLED Setup Menu 3 Level 1 Level 2 Level 3 Level 4 Description Section VARS Internal variables 5 3 9 9 2 PREV PREV NEXT scroll up and 5 3 9 9 2 NEXT down through the VARS menu JUMP JUMP will go to variable EDIT number selected EDIT will allow editing of the selected variable DIAG Diagnostic menu 5 3 7 9 PREV PREV NEXT scroll up and 5 3 7 9 NEXT down through the DIAG menu SIG VO Examines changes analog and 9 1 3 1 digital internal signals ANALOG Writes test voltages to analog 9 1 3 5 OUT outputs D A CAL Calibrates analog outputs 9 1 3 6 OPTIC Activates Optic Test feature 9 1 3 3 TEST ELEC Activates Electric Test feature 9 1 3 2 TEST GEN Turns OFF ON ozone generator 9 1 3 4 RS 232 Writes test data to RS 232 port 9 1 3 7 5 7 Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 2 Sample Mode The M200A software has two major operating modes the SAMPLE mode and the SETUP mode The SAMPLE mode is the normal mode when the instrument is taking data The SETUP mode is used when the instrument is initially installed or when problems in
87. Equation 7 3 NO Fyo ENO Tour X Fr Equation 7 3 NO 6 Calculate the required flow through the ozone generator Fo using Equation 7 4 NO X X F INO Ist X Fo Jie Equation 7 4 2 75 ppm min 7 Verify that the residence time tr in the reaction chamber is lt 2 min using Equation 7 5 lt 2min Equation 7 5 Fo 8 Verify that the dynamic parameter specification Pr of the calibrator s reaction chamber is gt 2 75 ppm min using Equation 7 6 Pr NO x V 2275 Equation7 6 Fo Fo 7 17 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 NOTE If t is gt 2 minutes or if Pr is 2 75 ppm min changes in flow conditions Fo or in the reaction chamber volume or both will have to be made and t and Pr will have to be re calculated 9 After equations 7 5 and 7 6 satisfied calculate the diluent air flow using Equation 7 7 Fo Fr Fo Fno Equation 7 7 7 8 4 3 Example GPT Calculation Following is an example calculation that can be used to determine whether an existing GPT calibrator will meet the required conditions for a specific calibration For this example it is assumed that only the volume of the reaction chamber Vrc and the concentration of the NO standard NO srp are known All flow settings Fo and Fp will be calculated I
88. FF Enable calibrate on NO perm tube 9 1 5 Test Channel Analog Output Many of the TEST functions have an analog voltage associated with them As a diagnostic aid it is possible to route the various test voltages out the 4th analog output 9 20 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 6 Test Channel Readings TEST Channel Minimum Maximum Description PMT DETECTOR 0 mV 5000 mV PMT detector output from the preamp This signal has been amplified and filtered Since the instrument is switched and uses AutoZero normal values can vary from 100 to 5000 mV Wide variations in this signal are normal Values should be around 0 mV when sampling zero air OZONE FLOW 0 cc min 1000 cc min This signal is the output from the ozone flowmeter Values around 1150 mV indicate zero flow Typical values for 80 cc min ozone flow are around 1800 mV Voltage should be steady indicating stable flow SAMPLE FLOW 0 cc min 1000 cc min The sample flow is calculated from the upstream pressure as measured by the SAMPLE PRESSURE transducer SAMPLE PRESSURE 0 Hg Abs 40 Hg Abs The sample pressure is measured by an absolute pressure meter The absolute pressure at sea level is 29 92 Hg The exact reading will vary a few tenths due to passing weather fronts and daily temperature cycling The readin
89. G DCN 5247 THIS PAGE IS INTENTIONALLY LEFT BLANK 1 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 2 GETTING STARTED 2 1 Unpacking 1 Verify that there is no apparent shipping damage If damage has occurred please advise shipper first then Teledyne API CAUTION To avoid personal injury always use two persons to lift and carry the Model 200A Before operation it is necessary to remove the shipping hold down screws Remove the instrument cover then refer to Table 2 2 1 for screw location Also check for internal shipping damage and generally inspect the interior of the instrument to make sure all circuit boards and other components are in good shape and all boards are seated properly Please check the voltage and frequency label on the rear panel of the instrument for compatability with the local power before plugging in the M200A 2 2 Electrical and Pneumatic Connections Refer to Table 2 2 2 to locate the rear panel electrical and pneumatic connections Attach the pump to the Exhaust Out port on the rear panel as shown in Table 2 2 3 If you are connecting to a calibrator attach a vented sample inlet line to the sample inlet port The pressure of the sample gas at the inlet port should be at ambient pressure The exhaust from the pump should be vented to atmospheric pressure See Table 2 2 3 for inlet and exhaust line ven
90. G DCN 5247 Table 7 7 1 Types of Zero Span Check and Calibration Section Type of Cal or Check Description 7 1 Manual Z S Check or Calibration This calibration option uses calibration gas through the sample port coming in through the sample port IZS and Zero Span valves do not operate 42 Manual Z S Check or Calibration with How to operate Zero Span Valves Option Can be Z S Valves Option used to check or adjust calibration 7 3 Manual Z S Check with IZS Option How to operate IZS option Can be used to check or adjust calibration 7 4 Automatic Z S Check with Z S Valves Operates Z S valves or IZS once per day to check or IZS Options the calibration 7 5 Dynamic Z S Calibration with Z S Operates Z S valves or IZS once per day and Valves or IZS Option adjusts calibration 7 6 Calibrate using NO Permeation Tube Allows calibration using NO gas from the IZS permeation tube 7 7 Use of Z S Valves IZS with Remote Operates Z S valves or IZS with rear panel Contact Closure contact closures Without valves or IZS can be used to switch instrument into zero or span cal mode Used for either checking or adjusting zero span 7 8 EPA Protocol Calibration Covers methods to be used if data is for EPA equivalency monitoring 7 9 Special Calibration Requirements for Covers special requirements if using Independent Independent Ranges or AutoRanging Range or AutoRange 7 10 Calibration Quality Inform
91. MENT Equipment provided but not manufactured by T API is warranted and will be repaired to the extent and according to the current terms and conditions of the respective equipment manufacturers warranty GENERAL During the warranty period T API warrants each Product manufactured by T API to be free from defects in material and workmanship under normal use and service Expendable parts are excluded If a Product fails to conform to its specifications within the warranty period API shall correct such defect by in APT s discretion repairing or replacing such defective Product or refunding the purchase price of such Product The warranties set forth in this section shall be of no force or effect with respect to any Product 1 that has been altered or subjected to misuse negligence or accident or ii that has been used in any manner other than in accordance with the instruction provided by T API or iii not properly maintained THE WARRANTIES SET FORTH IN THIS SECTION AND THE REMEDIES THEREFORE ARE EXCLUSIVE AND IN LIEU OF ANY IMPLIED WARRANTIES OF MERCHANTABILITY FITNESS FOR PARTICULAR PURPOSE OR OTHER WARRANTY OF QUALITY WHETHER EXPRESSED OR IMPLIED THE REMEDIES SET FORTH IN THIS SECTION ARE THE EXCLUSIVE REMEDIES FOR BREACH OF ANY WARRANTY CONTAINED HEREIN API SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR RELATED TO THIS AGREEMENT OF T API S PERFORMANCE HEREUNDER WHETHER FOR BREACH OF WARRANTY OR
92. NCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 1 Test Functions Continued Test Function Factory Set Up Comment OZONE FL 60 90 This is the Ozone flow It is measured by a solid state flow meter and thus is a true indication of flow If you suspect there is no ozone being generated disconnect the tube at the reaction cell and rub the end ofthe tube on your fingertips then sniff your fingers The odor of ozone should be readily apparent PMT 0 5000 mV This is the instantaneous output ofthe PMT During normal operation the value varies widely as the M200A switches from NO to NO to AutoZero modes Changes in reading will be synchronized with valve switching The PMT voltage values will be relatively constant when Electric test variation in the 2000 mV signal observed will be sampling errors ofthe V F board and preamp noise See Section 9 1 3 2 Optic test variation in the 2000 mV signal will be PMT dark current preamp HVPS plus item 1 above See Section 9 1 3 3 Sampling zero gas signal from 1 2 plus signal from ozone generator air Sampling pure NO span gas signal will be 1 2 3 above plus signal from chemiluminescent reaction Slight pulsations will be noticed as the M200A switches from NO to NO This is due to differences in flowrates in each channel These differences are taken out in the calibration process resulting in slig
93. NN which sets the password to the value NNNNNN 5 27 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Communication Protocols The RS 232 port can communicate in the following protocols 1 Teledyne API protocol some of features of this protocol are covered in Section 5 5 2 A comprehensive manual is available separately as p n 01350 RS 232 Programming Notes 2 Alternate protocol this protocol is used for communicating on proprietary networks 3 Multidrop protocol used for communication with multiple Teledyne API instruments on a single RS 232 line A manual is available separately as Teledyne API p n 01842 Multidrop Programming Manual Communication with a modem If this bit is set the instrument will send a setup string out the RS 232 port at power up The string correctly sets up a US Robotics Sportster Modem No other brands of modem are supported at this time RS 232 Line Errors Allows the software to ignore certain errors involving the computation of parity Enable Command prompt Setting this bit causes instrument to issue a command prompt after each command output Useful when operating in Terminal Mode 5 5 2 Command Summary The information contained in the rest of this section covers commonly used commands that are required to operate the instrument from a remote terminal If you are going to be writing computer programs to communic
94. NTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Like the display the overall functioning of the CPU can be confirmed by a simple test Locate the CPU board on the mother board by referring to Table 2 2 5 Power the instrument on Locate the red LED at the top left edge of the board It should be flashing at a frequency of about once per second di DT This flashing indicates the board is powered up and is executing instructions Testing and operation of the CPU RS 232 port is described in Section 9 3 2 It is possible for the UART driver chip to malfunction in either or both of the input or output ports 9 3 1 3 Front Panel Keyboard The keyboard consists of 8 keys and 3 LED s Key strokes are sent to the SBC40 computer s parallel port The computer software detects the key strokes via interrupts The bottom line of the display consists of 40 characters which is divided into 8 5 character fields Each field defines the function ofthe key immediately below it The definition of the keys is variable and depends on the menu level of the software To check the operation of the keyboard each key should perform an operation indicated by its current definition shown the second line of the display Example 1 testing key 1 left most key At the top level menu key 1 is defined as the TEST function Pressing this key should cause the middle field of the top line
95. Ox Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 4 3 Status Output Lines External Contact Closures The Status lines consist of 2 active input lines and 12 active output lines Additional circuits are present on the board but currently unused Individual lines are set or cleared under CPU control depending on the assigned alarm condition The CPU also monitors the 2 input lines for remote calibration commands The status inputs and outputs are terminated at the rear panel see the Connector Board schematic in the Appendix The output lines are opto coupled NPN transistors which can sink 50 ma max of current with a voltage of 30 VDC max The input lines are optically coupled with inputs pulled up to 5 VDC External contacts can be contact closures or open collector transistor contacts DO NOT apply any voltage since 5 VDC is supplied internally Individual status lines can be set or cleared using the DIAGNOSTIC mode SIGNAL VO This can be useful for simulating fault conditions in the analyzer to see if external circuitry is working correctly See Table 5 5 10 for pin assignments 9 3 4 4 4 20 mA Current Output 4 20 mA current loop option replaces the voltage output of the instrument with an isolated 4 20 mA current output The current outputs come out on the same terminals that were used for voltage outputs see Table 2 2 2 It is programmable for 4 20mA or 0 20mA and has a 1500 V common mode voltage isolation and 240 V RMS no
96. PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 9 M200A Operating Modes Mode Description ZERO CAL D Automatic dynamic zero calibration ZERO CAL A Automatic zero calibration ZERO CALR Remote zero calibration ZERO CAL M Manual zero calibration SPAN CAL D Automatic dynamic span calibration SPAN CALA Automatic span calibration SPAN CALR Remote span calibration SPAN CAL M Manual span calibration M P CAL Manual multi point calibration DIAG ELEC Electrical diagnostic test DIAG OPTIC Optical diagnostic test DIAG OZONE Ozone generator diagnostic test DIAG AOUT D A output diagnostic test DIAG Main diagnostic menu DIAG I O Signal I O diagnostic DIAG RS232 RS232 output diagnostic SETUP x x Setup mode x x is software version SAMPLE ZS Sampling automatic dynamic zero and span calibration enabled SAMPLE Z Sampling automatic dynamic zero calibration enabled SAMPLE S Sampling automatic dynamic span calibration enabled SAMPLE A Sampling automatic cal enabled SAMPLE Sampling automatic cal disabled 5 4 Status Output The status output is an option that signals Analyzer conditions via contact closures on the rear panel The closures are available on a 50 pin connector on the rear panel The contacts are NPN transistors which can sink 50 ma of current The pin assignmen
97. PUTE ZERO zero gas Zero cal in Single C EXIT Range mode Zero Calibration of low range C ZERO 1 Z S valves switched to admit AutoRange Enabled C COMPUTE ZERO zero gas Zero calibration of C EXIT low range in Auto Range mode Span Calibration of high range C SPAN 2 Z S valves switched to admit AutoRange Enabled C COMPUTE SPAN span gas Span calibration of C EXIT high range in Auto Range mode Zero Calibration with Dynamic C ZERO Z S valves switched to admit Calibration enabled C EXIT zero gas Instrument is zero calibrated if DYN CAL is enabled Zero Calibration C ZERO Z S valves switched to admit C EXIT zero gas Instrument zero is just checked but not changed Execute AutoCal Sequence 2 ASEQ 2 Execute a predefined AutoCal Sequence Executes sequence immediately ignoring time and date parameters Span Calibration Check C SPAN Z S valves switched to admit C EXIT span gas Instrument span is just checked but not changed Whenever the analyzer starts or finishes an IZS calibration it issues a status report to the RS 232 interface If the RS 232 interface is in the normal mode these reports will be sent Otherwise they will be discarded Table 5 19 shows the format of the text of the calibration messages An example of an actual sequence of calibration status messages is C DDD HH MM IIII START MULTI POINT CALIBRATION C DDD HH MM IIII NOX xxxxx PPB NO xxxxx PPB NO2 xxxxx PPB C DDD HH MM IIII FINISH MULTI POINT CALIBRA
98. RINA ea 9 5 TABLE 9 1 TEST FUNCTIONS CONTINUED RIND 9 6 TABLE 9 1 TEST FUNCTIONS CONTINUED 9 7 TABLE 9 9 2 FRONT PANEL WARNING MESSAGES e 9 9 TABLE 9 2 FRONT PANEL WARNING MESSAGES CONTINUED cc ceci 9 10 TABLE 9 9 3 SUMMARY OF DIAGNOSTIC MODES 01 100000000000 9 12 TABLE 9 9 4 DIAGNOSTIC MODE SIGNAL VO dei 9 13 TABLE 9 4 DIAGNOSTIC MODE SIGNAL I O CONTINUED enne eene eene 9 14 TABLE 9 4 DIAGNOSTIC MODE SIGNAL I O i 9 15 TABLE 9 4 DIAGNOSTIC MODE SIGNAL I O CONTINUED 9 16 TABLE 9 9 5 MODEL 200A INTERNAL 8 2 2 0 0 00000000100 9 20 TABLE 9 9 6 TEST CHANNEL 8 2 12 4 140 0000000000000000000 9 21 TABLE 9 6 TEST CHANNEL READINGS CONTINUED u RR a 9 22 TABLE 9 9 7 SPAN CALIBRATION VOLTAGE 666000000 0101000000000000000000000008 9 25 TABLE 9 9 8 CPU BOARD JUMPER 6 20022 0 00 000001010100000000000000000 9 36 TABLE 9 9 9 RS 232 PIN ASSIGNMENTS ie 9 40 TABLE 9 9 10 MOTHERBOARD JUMPER SETTINGS eee 9 43 TABLE 9 9 11 V F BOARD SWITCH SETTINGS har ara 9 44 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer In
99. RINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 ONT PANEL FI ED S PREAMI DULE Me SENS i TE x 3 CU E Zu TNA ulm lt Soi Nig zo du CIRI C 5 Ly o la gt de Ele zZ an zo Ep 4 1 cz G a ul a x Li r Hu TU O EM 7 LL pensi Xy z 1 I CE DE z gt I m gt Ed os TE o N o u 1 Z Table 9 9 15 Electrical Block Diagram 9 52 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 PSM Diagnostic Procedures The Linear Power Supply board can be tested by checking the DCPS TEST function on the front panel It should read 2500 mV 200 mV Ifthe value is outside this range individual output voltages can be tested on connector P3 see Schematic in the Appendix for pinouts The Switching Power Supply output can be tested by observing the temperature ofthe PMT cold block using the PMT TEMP TEST function The temperature should be constant 7 2 C The output voltage can
100. S Option The Internal Zero Span IZS system can be operated from the front panel keyboard When the M200A is in the SAMPLE mode and the IZS option is installed the CALS Calibrate Span or CALZ Calibrate Zero buttons will be visible When the buttons are pressed valves are switched to allow zero air or NO gas to be input into the instrument It is not possible to calibrate M200A on a NO permeation tube unless the CAL ON NO2 option is enabled This is because the NO permeation tube contains no NO gas We recommend a NO tank with calibration certificate for complete calibration or see CAL ON NO2 Section 7 6 To do a manual zero check with the IZS Option press CALZ then wait about 10 minutes for the zero reading to stabilize The zero value in the display and analog output is the zero value Press EXIT to return to SAMPLE mode This procedure does not change the zero calibration of the instrument To do a manual NO check press CALS then wait about 10 minutes for the NO reading to stabilize The concentration value in the display and analog output is the span value Press EXIT to return t0 SAMPLE mode This procedure does not change the span calibration of the instrument 7 4 Automatic Zero Span Check 7 5 In a typical air monitoring application it is desirable to have the analyzer automatically check AUTOCAL its calibration each day If equipped with 7 5 valves or 175 option the M200A can provide a daily calibratio
101. Span Does a Zero and Span Calibration 4 Span Does a Span Calibration 6 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 For each mode there are seven attributes that the MODE can have that control operational details ofthe SEQUENCE They are Table 6 6 3 IZS Sequence Attributes Example of enabling sequence 2 Do a span check hour later every other day lasting 15 minutes without calibration Table 6 6 4 IZS Sequence Example 6 4 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 6 6 5 Example of AutoCal Setup Step Action Comment 1 Press SETUP ACAL This button sequence will cause the AUTOCAL menu to be displayed 2 Press PREV NEXT Press PREV NEXT until SEQ 2 is displayed 3 Press MODE Select the MODE menu 3 Press PREV NEXT Press PREV NEXT to scroll to SPAN 4 Press ENTR ENTR selects the SPAN MODE 5 Press SET Select the SET menu to change the sequence attributes 6 Press PREV NEXT Scroll the SET menu to TIMER ENABLE 7 Press EDIT Allows changing the TIMER ENABLE attribute select ON 8 Press ENTR ENTR changes TIMER ENABLE to ON 9 Press PREV NEXT Repeat steps 6 9 for each attribute 10 Press EXIT Press the EXIT key to return to upper level menus 6 5 Permeation Tube NO nitrogen dioxide is normally a g
102. TION 5 35 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 21 RS 232 Calibration Messages Message Description START ZERO CALIBRATION Beginning IZS zero calibration NOX xxxxx PPB NO xxxxx PPB NO2 xxxxx PPB Finished IZS zero calibration FINISH ZERO CALIBRATION START SPAN CALIBRATION Beginning IZS span calibration NOX xxxxx PPB NO xxxxx PPB NO2 xxxxx PPB Finished IZS span calibration FINISH SPAN CALIBRATION START MULTI POINT CALIBRATION Beginning multi point calibration NOX xxxxx PPB NO xxxxx PPB NO2 xxxxx PPB Finished multi point calibration FINISH MULTI POINT CALIBRATION Depends on software options installed Depends on which units are currently selected 5 5 6 DIAGNOSTIC Commands and Messages When Diagnostic mode is entered from the RS 232 port the diagnostic mode issues additional status messages to indicate which diagnostic test is currently selected Examples of Diagnostic mode messages are D DDD HH MM IIII ENTER DIAGNOSTIC MODE D DDD HH MM IIII EXIT DIAGNOSTIC MODE Example of turning on the Ozone Generator via the RS 232 port D ENTER SIG D OZONE GEN ON D EXIT 5 36 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 The following is a summary of the Diagnostic commands Table 5 5 22
103. TTING PIN FT0010 OZONE INLET FITTING FT0010 O RING PIN OR0034 SPRING PIN HW0002 FILTER PIN FL0001 so ORING P N OR0001 ORIFICE 10 MILS ORIFICE 4 MILS JEWEL DOWN JEWEL DOWN 0009406 0009404 ORING PMT HOUSING DG DO 0 0001 In REACTION CELL EXHAUST 00884 P N FT0017 FA GASKET s P N 00227 7 7 ef 2 4 Vis My 4 7 gt ARA N A 5 2 N 4 A L S 4 N AAA YY A i lt Y Uy yy LC een WINDOW 00 00273 MANIFOLD REMOVE 00127 SLEEVE HEATER THERMISTOR 01534 0033703 HEATER THERMISTOR ASSY Table 8 8 5 Reaction Cell Assembly 8 10 PRINTED DOCUMENTS ARE UNCONTROLLED RN N ORING PIN OR0003 Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 8 Pneumatic Line Inspection Particulate matter in the pneumatic lines will affect both flow rate and response time It is important that the pneumatic system be periodically inspected and thoroughly cleaned if necessary Clean by disassembling and passing methanol through three times Dry with nitrogen or clean zero air Also in
104. Teledyne API factory Teledyne API s phone number is on the front page of this manual Performance Problems When the response from a span check is outside the control limits the cause for the drift should be determined and corrective action should be taken Some of the causes for drift are listed below NOTE It has been our experience that about 50 of all analyzer performance problems are sooner or later traced to leaks in some part of the system 1 Fluctuations in flow Such as leaks or plugged orifices Di Lack of preventive maintenance 3 Change in zero air source A Air containing NO leaking into zero air line B Saturation of charcoal and or Purafil scrubbers 9 26 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 1 9 2 2 Change in span gas concentration A Zero air or ambient air leaking into span gas line B Permeation tube or cal gas tank exhaustion Leak in NO NO or AutoZero switching valves Loose pneumatic fittings AC Power Check Check that power is present at main line power input Verify that correct voltage and frequency is present If unit is set for 240 VAC and is plugged into 115 VAC it will appear as a no power fault Check that the unit is plugged into a good socket Analyzer must have 3 wire safety power input Check circuit breaker The circuit breaker is part of the front panel power switch It i
105. The front panel of the M200A is shown in Table 2 2 4 The front panel consists of a 2 line display and keyboard 3 status LED s and power switch Communication with the display keyboard and status LED s is done via the computer s on board parallel port The M200A was designed as a computer controlled instrument therefore all major operations can be controlled from the front panel display and keyboard The display consists of 2 lines of 40 characters each The top line is divided into 3 fields and displays information The first field is the mode field A list of operating modes is given in Table 5 5 9 4 4 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 The center field displays TEST values The TEST functions allow you to quickly access many important internal operating parameters of the M200A This provides a quick check on the internal health of the instrument The right hand field shows current concentration values of NO NO and The display scrolls between the 3 values every 4 seconds 4 2 5 1 Keyboard The second line of display contains eight fields Each field defines the key immediately below it By redefining the keys dynamically it is possible to simplify the instrument electronics and user interface When entering data in the keyboard if the entered value is not accepted the M200A will beep to notify the user that the value keyed in was not
106. Then generate several NO concentrations by diluting the NO working standard Use the nominal NO cylinder concentration NO nom to calculate the diluted concentrations Plot the analyzer NO response in ppm versus the nominal diluted NO concentration and determine the slope Snom Calculate the NO concentration of the working standard from NO nom X Snom A procedure is presented in the TAD in Reference 2 7 8 12 2 Other Methods of Establishing Traceability They are 1 NO working standard traced to NIST NO2 standard 2 NO working standard traced to NIST NO2 standard 3 NO working standard traced to NIST NO standard NOTE For further information on calibration by GPT and NO permeation devices refer to part 50 of Chapter 1 Title 40 CFR Appendix F revised December 1 1976 and Reference 13 of that Appendix 7 33 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 9 Calibration of Independent Ranges or Autoranging There are additional considerations when AutoRange or Independent Ranges are selected The M200A uses one physical range of 0 2000 ppb to cover all EPA concentration ranges The dynamic range of the internal hardware and computer software is sufficient to cover this entire range Internally the range only scales parts of the 0 2000 ppb physical range to cover the voltage range selected for the analog outputs 7
107. UMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 CALIBRATION AND ZERO SPAN CHECKS There are several ways to check and adjust the calibration of the M200A These different methods are summarized in Table 7 7 1 In addition all of the methods described in this section can be initiated and controlled via the RS 232 port We strongly recommend that SPAN CALIBRATION be done with NO span gas although it is possible with NO see Section 7 6 or with gas from a GPT system SPAN CHECKS can be done with either NO only only or a mixture of NO and NO Zero air used for all calibration procedures including GPT should have lt 1 ppb NO or less than 1 ppb of major interferents such as 502 and NH3 and a dew point of 5 or less The calibration gasses should be from a reliable supplier since the quality of the tank concentration values ultimately determines the accuracy of the analyzer EPA protocol calibration gasses should be used for EPA monitoring see Section 7 8 NOTE If you are using the M200A for EPA monitoring only the calibration method described in Section 7 8 should be used NOTE If there are any problems completing any of the following procedures refer to Section 9 2 8 and 9 2 9 Unable to Span or Zero 7 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev
108. WARN Rx cell pressure out of spec WBOXTEMP BOX TEMP WARNING Box temp out of spec WRCELLTEMP RCELL TEMP WARNING Reaction cell temp out of spec WIZSTMP IZS TEMP WARNING IZS temp out of spec WCONVTEMP MOLY TEMP WARNING Molycon temp out of spec WPMTTEMP PMT TEMP WARNING Molycon temp out of spec WAUTOZERO AZERO WRN XXX X MV AutoZero filter received a reading out of limit spec WHVPS HVPS WARNING High voltage out of spec WDCPS DCPS WARNING DC Voltage out of spec WOZONEGEN OZONE GEN OFF Ozone generator is off WDYNZERO CANNOT DYN ZERO Dynamic zero cal out of spec WDYNSPAN CANNOT DYN SPAN Dynamic span cal out of spec WVFDET V F NOT DETECTED V F board not installed or broken 5 33 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Whenever a warning message is reported on the analyzer display ifthe RS 232 interface is in the normal mode i e not in quiet mode the warning message is also sent to the RS 232 interface These messages are helpful when trying to track down a problem with the analyzer and for determining whether or not the DAS reports are actually valid The warning message format is for example 194 11 03 0000 SAMPLE FLOW WARN The format of a warning command is W command Examples of warning commands are W LIST List all current warnings W CLEAR ALL Clear all current Warnings Individual warnings may be cleared via the front panel or the comma
109. Zero Calibration Procedure Zero Gas Thru Sample Port Step Number Action Comment 1 Press CAL The M200A enters the calibrate mode from sample mode The zero gas must come in through the sample port 2 Wait 10 min Wait for reading to stabilize at zero value 3 Press ZERO If you change your mind after pressing ZERO you can still press EXIT here without zeroing the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations 5 Press EXIT M200A returns to sampling Immediately after calibration data is not added to the DAS averages Next enter the expected NO and NO span gas concentrations 7 4 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 4 Enter Expected Span Gas Concentrations Procedure Step Number Action Comment 1 Press This key sequence causes the M200A to prompt for the CAL CONC NOX expected NO concentration Enter the NO span concentration value by pressing the key under each digit until the expected value is set This menu can also be entered from CALS or CALZ 2 Press ENTR ENTR stores the expected NO span value 3 Press Now enter the expected NO span concentration as in step one CAL CONC NO 4 Press ENTR Pressing ENTR stores the NO span value and returns the prompt to the CONC menu 5 Press EXIT Returns instrument to SAMPLE mode If
110. able check converter efficiency or replace D 175 oven temperature unstable verify stable temperature E Permeation tube installed upside down or wrong side see Table 6 6 6 for correct installation F Variations in humidity The permeation tube changes output depending on the humidity of the dilution air Room air is drawn into the zero air scrubber If the room air has high humidity or if the humidity varies the output of the permeation tube will be unstable 9 30 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 7 Unstable Zero Common causes are a con Leak in pneumatic system Perform leak check see Section 8 9 Miscalibration See Table 7 7 1 Light leak check the sensor module with strong light If equipped with IZS zero air scrubber exhausted replace charcoal and Purafil Sample lines or sample filter dirty clean or replace 9 2 8 Inability to Span If the SPAN button is not illuminated when attempting to span that means the reading is outside of the software gain ranges allowed In an analog instrument it would be the equivalent to the span pot hitting the rotation stop Here are some things to check 1 Check the expected span concentration values in CAL CONC NOX and CAL CONC NO and compare them to the values of the calibration span gas being input They should be nearly equal Check the PMT TEST function Wit
111. accurately known Subsequent Level 2 check responses should then be compared to the m ost recent reference response to determine ifa change in response has occurred For autom atic Level 2 zero and span checks the first schedul ed check following the calibration should be used for the reference response It should be keptinm ind that any Level 2 check that involves only part of the analyzer s system cannot provide inform ation about the portions of the sy stem not checked and therefore cannot be used as a verification of the overall analyzer calibration 7 28 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 9 Summary of Quality Assurance Checks The following items should be checked on a regularly scheduled basis to assure high quality data from the M200A See Table 7 7 19 for a summary of activities also the QA Handbook should be checked for specific procedures Table 7 7 19 Activity Matrix for Data Quality Characteristic Acceptance Frequency and Method of Action if Requirements Measurement are not Met Shelter temperature Mean temperature Check thermograph chart 1 Mark strip chart for between 22 C and 28 C 72 and 82 F daily fluctuations not greater than 2 C weekly for variations greater than 2 C 4 F the affected time period Repair or adjust temperature control Sample introduction No moisture f
112. age inputs The first is 15 which powers the supply The second is the programming voltage which is generated on the Preamp Board This power supply is unlike a traditional PMT HVPS It is like having 10 independent power supplies one to each pin of the PMT The test procedure below allows you to test each supply Adjustment of the HVPS is covered in the Factory Calibration Procedure in Section 9 1 6 To troubleshoot the HVPS 1 Turn off the instrument 2 Remove the cover and disconnect the 2 connectors at the front ofthe NO Sensor Module 3 Remove the end cap from the sensor 4 Remove the HVPS PMT assembly from the cold block inside the sensor Un plug the PMT tube 5 Re connect the 7 pin connector to the Sensor end cap and power up the instrument 6 Use Table 9 9 23 to check the voltages at each pin of the supply and the overall voltage Turn off the instrument power and re connect the PMT tube then re assemble the Sensor If any faults are found in the test you must obtain a new HVPS as there are no user servicable parts inside the supply 9 64 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 o E Be O E ee ES DEA 2 QUIE Sr Ul oc 3 m E am PP IST fa ni SEO D Sa Ar NF LO e A LE spa
113. al relocation of the analyzer GN ree cee Any other indication including excessive zero or span drift of possible significant inaccuracy of the analyzer Following any of the activities listed above the zero and span should be checked to determine if a calibration is necessary If the analyzer zero and span drifts exceed the calibration limits in Table 9 9 1 of Section 2 0 9 Subsection 9 1 3 Q A Handbook a calibration should be performed 7 8 8 Other Quality Assurance Procedures Precision is determined by a one point check at least once every two weeks Accuracy is determined by a three point audit once each quarter Essential to quality assurance are scheduled checks for verifying the operational status of the monitoring system The operator should visit the site at least once each week Every two weeks a Level 1 zero and span check must be made on the analyzer Level 2 zero and span checks should be conducted at a frequency desired by the user Definitions of these terms are given in Table 7 7 18 In addition an independent precision check between 0 08 and 0 10 ppm must be carried out at least once every two weeks Table 7 7 19 summarizes the quality assurance activities for routine operations A discussion of each activity appears in the following sections To provide for documentation and accountability of activities a checklist should be compiled and then filled out by the field operator as each activity is completed
114. alibration procedure Table 7 7 14 Zero Calibration Procedure Step Number Action Comment 1 Press CAL The M200A enters the calibrate mode from sample mode NOTE The analyzer does not operate the zero span valves in this mode the zero gas enters through the sample port 2 Wait 10 min Wait for reading to stabilize at the zero value 3 Press ZERO If you change your mind after pressing ZERO you can still press EXIT here without zeroing the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations 5 Press EXIT M200A returns to the SAMPLE mode 7 8 5 2 NO NO Calibration Procedure Adjust the NO concentration to approximately 80 ofthe URL ofthe NO channel The expected NO and NO span concentrations can be determined by measuring the cylinder and diluent flows and computing the resulting concentrations If there is any NO impurity in the NO standard gas it should be taken into account when the NO concentration is entered during the NO NO channel calibration This is done by ADDING the impurity concentration to the NO concentration to getthe NO concentration for calibration Calculate the exact NO and NO concentrations as follows x NO NO Eno X1NO Im Equation 7 SEnter the respective concentrations using the procedure in Table 7 13 The expected span concentrations need not be re entered each time calibration is performed unless they are chang
115. alyzer Instruction Manual 02246 Rev G DCN 5247 TELEDYNE API recommends that you purchase replacement permeation tubes from VICI METRONICS 2991 Corvin Drive Santa Clara CA 95051 USA Phone 408 737 0550 Fax 408 737 0346 The M200A uses 560 cc min of zero air over the perm tube Therefore you should order a permeation tube with a SPECIFIC OUTPUT of 400 to 450 ppb at 560 liter minute This will give you a IZS Span response of 80 to 90 of full scale in the 500 ppb range Refer to the above equation for calculating other concentrations and instrument flow rates Once the Analyzer and permeation tube have stabilized the response to the permeation tube is not expected to change more than 5 If during a periodic span check the response varies by more than 5 or more importantly shows drift then there may be a problem with the Analyzer or permeation tube see Section 9 3 9 Suggested permeation tubes NO Permeation tube uncertified 0 4ppm 0 5 Ipm NO Permeation tube certified 0 4ppm 0 5 Ipm NO Permeation tube certified 0 8ppm 0 5 Ipm Permeation tube uncertified 0 8ppm 0 5 Ipm 6 6 4 20 mA Current Loop Output The current loop option replaces the voltage output of the instrument with an isolated 4 20 mA current loop The current outputs come out on the same terminals that were used for voltage outputs see Table 2 2 2 See Troubleshooting Section 9 3 3 for setup and calibration 6 8 PRINTED DOC
116. as at room temperature and pressure but can be liquified at moderate pressures The permeation tube consists of a small container of NO liquid with a small window of PTFE which is permeable to see Table 6 6 6 The gas slowly permeates through the window at a rate in the nanogram min range If the tube is kept at constant temperature usually about 50 C the device will provide a stable source of NO gas for a year or more See below for permeation tube ordering information The NO concentration is determined by the permeation tube specific output ng min 1 slpm 50 the permeation tube temperature and the air flow across it slpm The specific output in ng min is a fixed function of the permeation tube and is noted on shipping container The ng min units can be converted to ppb units by the following equation ppb NO permtubeoutput ng 560cc min 46 gr mole NO 24 500cc mole Where perm tube output ng min The perm tube output in nanograms minute 46 gr mole The molecular weight of nitrogen dioxide NO2 560 cc min The flow rate of zero air over the permeation tube 24 500cc mole The volume of air at 25 C and 1 atm pressure that contains 1 mole of air molecules 6 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 If an ammonia permeation tube is being used substitute the molecular wei
117. asured directly 53 R3 2 Reaction Cell Pressure measured directly S2 R2 3 Sample gas pressure measured directly 51 4 Sample Flow computed from sample pressure and reaction cell pressure 51 52 The above pressures and flows are filtered to produce the front panel readings There is a small delay after adjustment for a steady reading when observing the TEST functions To adjust the OZONE flow 1 Go to DIAG mode by pressing SETUP MORE DIAG then select SIGNAL VO and press ENTR Select OZONE_FLOW by using NEXT PREV keys 2 Adjust R3 so that OZONE_FLOW reads 2000 mV This is the coarse adjustment 3 Press EXIT to return to the SAMPLE mode Select the OZONE FL TEST function Use a calibrated flow meter to make small adjustments in R3 to dial in correct flow To adjust the SAMPLE PRESSURE 1 Go to DIAG mode by pressing SETUP MORE DIAG then select SIGNAL VO and press ENTR Select SAMPLE PRESS by using NEXT PREV keys 2 Adjust R1 to read 4100 mV which will give approximately the correct pressure 3 Press EXIT to return to the SAMPLE mode Select SAMP TEST function Use a calibrated absolute pressure meter to make small adjustments to R1 until the correct absolute pressure is displayed 29 92 in Hg A is the target value at sea level The rate of decrease is about 1 Hg per 1000 ft of altitude To adjust the REACTION CELL PRESSURE 1 Go to DIAG mode by pressing SETUP MORE DIAG then select SIGNAL VO and press ENTR
118. at flow rates of 1 L min 5 L min 1629 Nitrogen dioxide 1 0 0 5 0 1 Cylinders of working gas traceable to NIST SRM s called EPA Protocol Calibration Gas are also commercially available from sources such as Scott Specialty Gases etc 7 8 12 Certification Procedures of Working Standards NOTE If the assayed concentration of NO impurity in the NO cylinder NO imp is greater than the 1 ppm value allowed in the calibration procedure make certain that the NO delivery system is not the source of contamination before discarding the NO standard The NO content of the NO working standard must be periodically assayed against NIST traceable NO or NO standards Any NO impurity in the cylinder must also be assayed Certification of the NO working standard should be made on a quarterly basis or more frequently as required Procedures are outlined below for certification against NO traceable standard The simplest and most straightforward procedure is to certify against an NO standard 7 32 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 12 1 NO Working Standard Traced to NIST NO Standard First use the NIST traceable NO standard and the GPT calibration procedure to calibrate the NO NO and NO responses of the analyzer Also determine the efficiency of the converter Refer to the calibration procedure described in Section 7 8 4 2
119. ate with the M200A i e operating the port in COMPUTER MODE we suggest that you order a supplementary manual The RS 232 Interface Teledyne API part number 01350 This manual describes additional features of the port The Teledyne API RS 232 interface includes multidrop capability to permit the connection of more than one analyzer to a single RS 232 line To identify each Analyzer an optional ID number is permitted for all commands If you don t include the ID number in the command all of the instruments connected to the RS 232 interface will respond If you include the ID number in the command only the instrument whose ID number matches will execute the command 5 28 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 14 RS 232 Command Summary Commands Definition id Print help screen D is an optional instrument ID number T id LIST Print all active test messages T id LIST name or Print single test message name from Table 5 15 T id name W id LIST Print all active warnings W id CLEAR name or Clear single warning message name from Table 5 16 W id name C id command Execute calibration command from Table 5 17 D id LIST Prints all I O signal values D id name Print single I O signal value state D id name value Sets I O signal to new value D id LIST NAMES Lists diagn
120. ation about the quality and validity of the calibration Refer to Section 5 2 2 5 for more information on the formulas Refer to Section 7 10 Calibration Quality for details on how to use these values Time This is an output of the M200A s internal time of day clock 5 11 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 2 2 CAL CALS CALZ Calibration Functions The calibration and zero span checking of the M200A analyzer is treated in detail in Section 7 Table 7 7 1 summarizes types of calibration The basic function of each of these keys is described here 5 2 2 1 CAL CALS CALZ The above keys control the calibration functions of the analyzer In the CAL mode the analyzer can be calibrated with zero span gas coming in through the sample input port on the rear panel If the analyzer is equipped with the IZS option or Zero Span valves there will be CALZ and CALS buttons also These buttons operate the Zero Span valves or IZS system The setup of these options is covered in Section 6 3 and their operation is explained in Section 7 5 2 2 2 Zero Pressing the ZERO key along with ENTR will cause the instrument to adjust the OFFSET value of the internal formula so that the instrument reads zero The M200A allows zero adjustment over a limited range of signal levels therefore the signal does not have to be exactly zero for the instrument to be zeroed The instru
121. ation on how to determine if the calibration performed will result in optimum instrument performance 7 11 References Contains a list of references on quality control and calibration 7 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 NO TANDARI ALIBRATOR SAMPLE INL M A ANALYZER HAUST NOTE SEE FIGUI 5 FOI TUBING LENGI PE NOTE TUBING I PTFE ENT T TAINLESS STEEL OR ATMOSPHERE NOTE PI URE REGULATOR AND HIGH PRESSURE FITTING MUST BE STAINL STEEL Table 7 7 2 Calibration Setup 7 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 1 Manual Zero Span Check or Cal With Zero Span Gas in the Sample Port The calibration of the instrument can be checked or adjusted using gas from the sample port This method is often used when the calibration gas is supplied from an external calibrator and valve system or when the Analyzer does not include the IZS or Z S valves option Since the zero gas concentration is defined as 0 ppb it is not necessary to enter the expected zero value Table 7 7 3 details the zero calibrate procedure with zero gas coming in through the sample port Table 7 7 3 Manual
122. ause of its sim plicity can be and should be carried outm uch m ore frequently Also two point calibrations are easily automated Frequency checks or updating of the calibration relationship with a two point zero and span calibration im proves the quality ofthe monitoring data by helping to keep the calibration relationship m ore closely matched to any changes drifts in the analyzer response LEVEL 2 ZERO AND SPAN CHECK A Level 2 zero and span check is an unofficial check of an analyzer s response Itm ay include dynamic checksm ade with uncertified test concentrations artificial stim ulation of the analyzer s detector electronic or other ty pes of checks of a portion of the analyzer etc Level 2 zero and span checks are not_ to be used as a basis for analy zer zero or span adjustm ents calibration updates or adjustm entof ambient data They areintended as quick convenient checks to be used between zero and span calibrations to check for possible analy zer malfunction or calibration drift Whenever a Level 2 zero or span check indicates a possible calibration problem a Level 1 zero and span or multipoint calibration should be carried out before any corrective action is taken Ifa Level 2 zero and span check is to be used in the quality control program a reference response for the check should be obtained immediately following a zero and span or multipoint calibration while the analy zer s calibration is
123. be entered by pressing the OFFSET button for the appropriate channel Calibrating a channel for current loop operation 1 ND t BEFORE STARTING make sure that hardware settings correct as shown in Table 9 9 6 and Table 9 9 10 Calibrate the A D converter as described in item 2 above if necessary Connect a 250 ohm resistor in series with a current meter to the correct pair of terminals on the rear panel see Table 9 9 11 for terminal assignments In the D A calibration Menu press CFG then use PREV NEXT to select the channel to be calibrated Press the SET button to select CURR for current loop operation then press ENTR To enter the calibration routine press CAL To calibrate the 4 mA zero point press the UP UP10 DN DN10 then press ENTR The M200A will then output 20 mA Press UP UP10 DN DN10 buttons to calibrate the span point then press ENTR Repeat steps 2 6 for each channel that needs to be calibrated 9 45 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Uu 25 9 LL 2 oo Na E SA 5 2 gt E Lu n a 7 at 4 c N 6 o o ae a rare vi e gt GAIN LIMIT
124. be observed on J10 of the Switch Board It should be 15 VDC 0 5 The Switch Board can be tested by observing the diagnostic LEDS along the top edge of the board The following Table 9 9 16 describes the typical operation of each LED Table 9 9 16 Power Supply Module LED Operation No Function Description 1 NO NO Valve Should switch about every 5 sec On click sound NO mode Off thud sound NO mode 2 Zero Span Valve Should switch ON when CALZ or CALS button is pressed 3 Sample Cal Valve Should switch ON when CALS button is pressed 4 AutoZero Valve ON when M200A in AutoZero mode Happens once every 6 NO NO cycles or about once per minute 5 Ozone Generator Power The ozone generator will be on if it has been more than 30 min since power up 6 Sample flow control block Should cycle ON OFF every 20 sec to 2 min On heater continuously until up to temp 7 Converter Heater Should cycle ON OFF every 20 sec to 2 min On continuously until up to temp 8 Reaction Cell Heater Should cycle ON OFF every 20 sec to 2 min On continuously until up to temp 9 53 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 6 Ozone Generator CAUTION DANGER Lethal voltages present inside Ozone Generator DO NOT defeat electrical interlock Turn off instrument before servicing Unplug Generator before disassembling
125. by toggling a bit on the V F board The V F board TTL logic controls a solid state switch on the Switch Board in the PSM The switched 115 comes out ofthe PSM to a connector near the underside of the reaction cell A warning message may be present during initial warm up or if the connector is not plugged in after cleaning the reaction cell 9 3 8 3 Preamp Board The NO Preamp Board is a multifunction board providing circuitry to support the following functions 1 Preamp buffer amplifier physical range control hardware for the PMT detector 2 Precision voltage reference and voltage generation and control for PMT HVPS inside the sensor module 3 Constant current generator and adjustment for the Optic Test LED 4 Voltage generation and adjustment for Electric Test 5 Thermistor amplifier control signal generation for the PMT cooler The setup and adjustment of items 1 4 above is covered in the Factory Calibration procedure in Section 9 1 6 Item 5 has no adjustable features 9 62 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 JPPLY ULE ER S HIN
126. calibration parameters AVG Type of data AVG average reading INST instantaneous reading NXCNCI 1234 5 PPB Name of the parameter NX NOx NO NO 2 NO2 5 38 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 All ofthe default Data Channels sample more than one parameter for these channels each parameter is printed on a separate line There is also a compact format If this attribute is enabled all 3 concentration parameters are printed on one line as shown below D 94 08 00 0200 20 0 120 0 100 0 The parameters in the order of NO NOx and NO To change any of the attributes of a particular data channel the channel attributes are edited from the front panel The following table uses the example of Automatic Reporting Other attributes can be edited in a similar fashion 5 5 8 Internal Variables A list of M200A variables is shown in Table 9 5 A list of variables and their settings can be requested over the RS 232 port by V LIST Lists internal variables and values The output from this command is long and will not be shown here The general format of the output is value warning lo warning hi data lo to data hi Where name name of the variable value current value of variable warning_lo lower limit warning displayed if applicable warning_hi upper limit warning displayed if applicable data lo
127. coal filled canister mounted on the pump pack See Table 2 2 3 for the scrubber location To replace the charcoal Turn off the analyzer and pump Remove the scrubber from the pump pack by loosening the 1 4 tube fittings Unscrew the upper end cap ofthe scrubber and empty the contents Replace the charcoal with TELEDYNE API P N 00596 or equivalent Be sure the charcoal completely fills the canister so that flow channels will not form ge cope X x Replace the cap then re install the canister on the pump pack CAUTION The charcoal used for the ozone scrubber should NOT be treated with halogen compounds chlorine iodine etc since explosive compounds may be formed on contact with ozone Replacing the Permeation The permeation tube is contained in the oven at the rear center of the instrument refer to Table 2 2 5 for its location See Table 6 6 6 for illustration 1 Turn off the power to 200 2 Remove the two pneumatic fittings and the rubber insulation from the top of the assembly 3 Remove the oven cover by removing the two screws holding down the cover NOTE That the fitting closest to the Ozone Generator is stainless steel This chamber is where the permeation tube should be 4 Remove the old permeation tube Install the new permeation tube in the same chamber with the membrane facing UP 2 Re assemble the oven and turn on instrument power Permeation tubes require 48
128. could be contaminated or there could be a light leak in the cell Verify this fault by turning the ozone generator off and see if the reading drops more than 25 mV D Check fora change in cell pressure vacuum compare to value in Table 2 2 6 possible causes 1 Partially plugged ozone killer 2 Change of pump or malfunctioning pump 3 Plugged pneumatics 4 Change in altitude Check for pneumatic leaks perform the leak check procedure in Section 8 9 If slopes are different from each other by gt 1 this usually indicates a leak in the switching NO NO valve or improper calibration Check for light leaks Turn off the ozone generator then wait 7 minutes If the reading drops significantly the reaction cell is contaminated If not a light leak is indicated Incorrect span gas concentration this could come either from the calibrator or entering the expected span gas concentration in the M200A incorrectly see Table 7 7 4 If the instrument does not respond to span gas check Section 9 2 3 The above should get you started in diagnosing and repairing the most common faults If these reasons have been eliminated the next thing to do is a Factory Calibration covered in Section 9 1 6 or check Section 9 2 for other fault diagnosis If difficulties persist contact our service department The 800 telephone number is on the cover page of this manual 9 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Ins
129. ct operation As time passes more detailed information is often required on special configurations calibration alternatives and other operational details Finally there is the need for periodic maintenance and to quickly troubleshoot problems to assure maximum reliability and data integrity To address these needs we have created three indexes to the information inside They are Table of Contents Outlines the contents of the manual in the order the information is presented This is a good overview of the topics covered in the manual There is also a list of Tables and a list of Figures Index to M200A Front Panel Menus The Menu Index Table 5 5 1 and Table 5 5 2 Table 5 5 3 and Table 5 5 4 briefly describes the front panel menus and refers you to other sections of the manual that have a detailed explanation of each menu selection Troubleshooting Section 9 The Troubleshooting Section outlined in the Table of Contents allows you to diagnose and repair the instrument based on variables in the TEST menu the results of DIAGNOSTIC tests and performance faults such as excessive noise or drift The troubleshooting section also explains the operation adjustment diagnosis and testing of each instrument subsystem If you are unpacking the instrument for the first time please refer to Getting Started in Section 2 1 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev
130. d Standards for Establishing Traceability To assure data of desired quality two considerations are essential 1 the measurement process must be in statistical control at the time ofthe measurement and 2 the systematic errors when combined with the random variation in the measurement process must result in a suitably small uncertainty Evidence of good quality data includes documentation ofthe quality control checks and the independent audits of the measurement process by recording data on specific forms or on a quality control chart and by using materials instruments and measurement procedures that can be traced to appropriate standards of reference To establish traceability data must be obtained routinely by repeated measurements of standard reference samples primary secondary and or working standards More specifically working calibration standards must be traceable to standards of higher accuracy such as those listed below in Table 7 7 20 7 31 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 20 NIST SRM s Available for Traceability of Calibration and Audit Gas Standards NIST SRM Type Size at STP Nominal i Concentration 1683a Nitric oxide in 870 50 ppm 1684a Nitric oxide in 870 100 ppm 1685a Nitric oxide 870 250 ppm Permeation Tubes Permeation rate NIST SRM Type en 2
131. dicate a need for diagnostics One of the features of the SAMPLE mode is TEST functions The TEST functions can be examined while the instrument is taking data and can be used to determine ifthe instrument is set up and functioning properly Section 5 2 1 defines each TEST function and explains its use 5 2 1 Test Functions NOTE In any of the following TEST functions if a value of XXXX is displayed that indicates an off scale and therefore meaningless reading To use the TEST functions to diagnose instrument faults refer to Troubleshooting Section 9 1 Range The M200A can operate in one of three range modes 1 single range mode there is one range for all 3 outputs This is the default range mode 2 Independent range mode allows different ranges for each output When enabled there are three range values displayed NO NO and NO 3 Auto range mode allows a low range and high range The 200 will automatically switch to the other range dynamically as concentration values require The TEST values will show the range the instrument is currently operating in and will dynamically display the alternate range as the range changes occur NOTE Each of the range modes Single range Autorange and Independent ranges are mutually exclusive 5 8 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Stability The instrument no
132. ds 5 18 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 3 4 5 Concentration Units The M200A can display concentrations in ppb ppm ug m3 mg m3 units Concentrations displayed mg m and ug m use 0 760 mmHg for STP Consult your local regulations for the STP used by your agency The following equations give approximate conversions NO ppb x 1 34 NO ug m NO ppm x 1 34 NO mg m NO2 ppb x 2 05 NO2 ug m NO2 ppm x 2 05 NO2 mg m NH3 ppb 0 76 NH3 ug m for use with the M201A NH3 analyzer NH3 ppm x 0 76 NH3 mg m To change the current units press SETUP RNGE UNIT from the SAMPLE mode and select the desired units NOTE The expected span concentration values in the new units must be re entered into the analyzer and the unit re calibrated using one of the methods in Section 7 Changing units affects all of the RS 232 values all of the display values and all of the calibration values Example If the current units are in ppb and the NO span value is 400 ppb and the units are changed to ug m A new value must be entered for the expected span concentration 5 3 4 6 Recorder Offset If necessary the analog outputs can be biased to allow operation with recorders that cannot show slightly negative readings The output voltage of each channel can be offset 10 of the current setting It can also be used
133. e heaters is not plugged in after dis assembly Also check the position of the thermistor in permeation tube heater block Check to see if there is a good seal at the top of the heater block table continued 9 9 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 2 Front Panel Warning Messages Continued Message Description PMT TEMP WARNING PMT temp out ofspec The PMT temp has its own proportional controller on the preamp 01141 board Warnings will occur during initial operation The warning can occur ifthe 7 pin connector to the interior of the sensor is not plugged in The power connector to the PSM should be checked for proper voltage 15 VDC 0 5 MOLY TEMP WARNING Molycon temp out of spec The Moly temp is controlled by the CPU It has a thermocouple with amplifier on the 01086 Status Temp board Because of the high temperature of the Moly 315 C the moly temp warning will tend to be the last warning to clear as the instrument is powered on CANNOT DYN ZERO Dynamic zero cal out of spec The reading of the PMT was too high for the ZERO button to appear Make sure the instrument is receiving zero gas Check for dirty reaction cell Do the factory calibration procedure located in Section 9 1 6 CANNOT DYN SPAN Dynamic span cal out of spec The reading of the PMT was too high or low for the SPAN but
134. e en 5 14 1 Range Me 5 16 5 3 5 Password bile on o EHE dU emu ido dad io P RODA e cO NO EDNIEM DE 5 20 A A 5 20 5 3 1 Diagn stie Modera 5 20 5 3 9 Comm nications Men NER E Eas 5 20 5 3 9 Aso 5 21 2 2 10 02 002 Operating MOTES Ress Hue of ede tiov ntes Cin s iut bUs a Das cas AR EDUC 5 2 JA STATUSOUTPUT Ai iia 5 22 SR 232 INTERFACE leali 5 23 5 5 1 Setting Up the RS 232 Interface cn ee een nie 5 24 5 5 2 irta 5 28 5 5 3 TEST Commands and Message een 5 32 5 5 4 WARNING Commands and Messages cirie ieri 5 33 5 5 5 CALIBRATION Commands and Messages ua 5 34 5 5 6 DIAGNOSTIC Commands and Messages 5 36 5 5 7 DAS Commands and 5 37 5 5 8 Internal Variables I TIL I TT TR 5 39 6 OPTIONAL HARDWARE AND 5 6 1 DI RACE MOUNT OPTIONS aiar 6 1 0240 6 1 6 3 INTERNAL ZERO SPAN IZS pelati 6 3 6 4 AUTOCAL SETUP OF IZS AND ZERO SPAN VALVES anne 6 3 6 5 PERMEATION TUBE 6 5 6 6 4 20 MA CURRENT LOOP OUTPUT een ea aan 6 8 7 CALIBRATION AND ZERO SPAN CHECKS eee ee ee eee eee eene ene 00 7 7 1 MANUAL ZERO SPAN CHECK OR CAL WITH ZERO SPAN GAS IN THE SAMPLE PORT 7 4 7 2 MANUAL ZERO SPAN CHECK OR CALIBRATION WITH ZERO SPAN VALVES OPTION
135. e next higher menu If no change is required press EXIT TPC_ENABLE The M200A has temperature and pressure compensation T P comp adjusts the output of the instrument for changes in sample temperature reaction cell pressure and atmospheric pressure The sample temperature is controlled by the temperature of the reaction cell The setpoint is 50 C and the value of the adjustment parameter is equal to 1 0000 when the reaction cell temperature is 50 C The temperature compensation increases sample concentration with increasing temperature to compensate for the drop in density of gas in the reaction cell 9 18 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 The reaction cell pressure compensation factor is equal to 1 0000 when the cell pressure is 5 Hg A The compensation factor increases sample concentration with increasing cell pressure to compensate for increased quenching of the chemiluminescent reaction at higher pressures The pressure compensation correction has been found to work adequately up to about 8000 ft 2400m altitude The sample pressure compensation factor is equal to 1 0000 at 29 92 Hg A This factor increases sample concentration with decreasing sample pressure to compensate for a lower head pressure on the sample flow orifice Taken together the three factors change the output of the instrument very little The sample temperature is essentia
136. ead XXXXXX This means that the reading is off scale and therefore meaningless General Troubleshooting 1 If the fault is light on and it stays on after you clear the warning messages see Section 9 1 2 2 Think of the analyzer as three sections Section 1 Pneumatics Over 50 of all analyzer problems are traced to leaks in the pump assembly sample filter instrument internal pneumatics calibrator or external sample handling equipment Suspect a leak first and check Section 9 2 Section 2 Electronics data processing section This can be readily checked out using Electric Test in Section 9 1 3 2 Section 3 Optics Optical section consisting of PMT HVPS Preamp and signal processing Refer to Section 9 1 3 3 on use of Optical Test 9 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 3 7 Check the TEST functions A Compare the TEST functions to the factory values in Table 2 2 6 This will often provide important clues as to the problem B Pay special attention to the NO and NO slopes C The slopes are the software equivalent ofthe span pot on an analog instrument Ifthe slopes are not 1 0 0 3 the gain has changed Do the following Check the AutoZero reading in the TEST functions Compare it to the value in the factory checkout Table 2 2 6 If the reading is significantly greater than the factory test value the reaction cell
137. earity criteria given for the NO and NO channels Determine the best straight line fit of the plot either by inspection or least squares The slope of the resulting straight line is the moly efficiency The value should be between 96 and 1 02 If not the moly needs to be replaced If you want the M200A to automatically compensate Section 7 8 6 1 for converter efficiency enter the efficiency value in the front panel by CAL CONC MOLY SET then key in the slope from step 3 followed by ENTR Press EXIT to return to the SAMPLE menu 7 25 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 6 1 Automatic Moly Converter Efficiency Compensation The M200A can automatically compensate the NO and NO readings for the molybdenum converter efficiency There are 2 ways to enter the converter efficiency into the instrument The first is to enter the efficiency as a decimal fraction using the CAL CONC MOLY SET menu The second method is to have the M200A compute the efficiency using the CAL MOLY CAL menu The procedure is given in Table 7 7 17 below To disable the compensation press CAL CONC MOLY SET and enter 1 0000 as the efficiency Table 7 7 17 Automatic Calculation of Converter Efficiency Step Number Action Comment 1 Press CAL CONC From the SAMPLE mode the M200A enters the Converter CONV NO2 Efficiency menu and requests expected NO cal
138. ed Enter the expected NO and span gas concentrations 7 22 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 15 Expected Span Gas Concentration Procedure Step Number Action Comment 1 Press This key sequence causes the M200A to prompt for the CAL CONC NOX expected NO concentration Enter the NO span concentration value by pressing the key under each digit until the expected value is set This menu can also be entered from CALS or CALZ 2 Press ENTR ENTR stores the expected NO span value 3 Press Now enter the expected NO span concentration as in step one CAL CONC NO 4 Press ENTR Pressing ENTR stores the NO span value and returns the prompt to the CONC menu 5 Press EXIT Returns instrument to SAMPLE mode Sample the generated concentration until the NO and the NO responses have stabilized Span the instrument by the following procedure Table 7 7 16 Span Calibration Procedure Step Number Action Comment 1 Press CAL The M200A enters the calibrate mode from sample mode 2 Wait 10 min Wait for readings to stabilize at span values 3 Press SPAN If you change your mind after pressing SPAN you can still press EXIT here without spanning the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations DI Press EXIT M200A returns to SAMPLE mode The analo
139. edyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 THIS PAGE IS INTENTIONALLY LEFT BLANK 4 10 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 SOFTWARE FEATURES 5 1 The M200A control software has two major operating modes The SAMPLE mode is the normal mode when the instrument is taking data The software menu that covers the SAMPLE mode is diagrammed in Table 5 5 1 When the instrument is initially installed or problems indicate a need for diagnostics the SETUP menu is used The SETUP menu is diagrammed in Table 5 5 2 Index To Front Panel Menus The next several pages contain two different styles of indexes that will allow you to navigate the M200A software menus The first two pages show tree menu structure to let you see glance where each software feature is located in the menu The second menu contains a brief description of each key mnemonic and a reference to the section of the manual that describes its purpose and function in detail 5 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 m Lu Lor ETS E lt 1 N O a E Li V Ld O ERES um N Lu gt 1 LU M O7 2 ul 5
140. enu level The highest level is the SAMPLE mode Once CAL ON NO2 is enabled the procedure for zeroing and spanning the instrument is identical to that given in Section 7 2 for Zero Span Valves 7 10 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 7 Use of Zero Span Valves or IZS with Remote Contact Closure The Zero Span valve or IZS options can be operated using Remote Contact Closures provided on the rear panel See Table 2 2 2 for connector location and pinout When the contacts are closed the analyzer will switch to zero or span mode The contacts must remain closed for at least 1 second and will remain in zero or span mode as long as the contacts are closed If Dynamic Zero Span is enabled the calibration is adjusted at the end of the zero or span time otherwise zero or span is just checked not adjusted In order to do another remote check both contact closures should be held open for at least 1 second then may be set again Table 7 7 10 shows what type of check is performed based on the settings of the two contact closures Table 7 7 10 IZS or Z S Valves Modes with Remote Contact Closure Ext Zero CC Ext Span CC Operation Contact Open Contact Open State when in SAMPLE mode normal monitoring Contact Open Contact Closed Span check or calibrate Contact Closed Contact Open Zero check or calibrate Calibra
141. ess NEXT PREV to select the desired mode then press ENTR to select that mode 9 11 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 3 Summary of Diagnostic Modes DIAG Mode Description SIGNAL I O Gives access to the digital and analog inputs and outputs on the V F board The status or value of all of the signals can be seen Some of the signals can be controlled from the keyboard Table 9 9 4 gives details on each signal and information on control capabilities NOTE Some signals can be toggled into states that indicate warnings or other faults These settings will remain in effect until DIAG mode is exited then the M200A will resume control over the signals ANALOG OUTPUT Causes a test signal to be written to the analog output DAC s The signal consists of a scrolling 0 20 40 60 80 100 of the analog output value The scrolling may be stopped by pressing the key underneath the display to hold that value The exact voltage values depend on the jumper settings on the analog output buffer amplifiers D A CALIBRATION The analog output is created by 4 digital to analog converters This selection starts a procedure to calibrate these outputs Refer to Section 9 3 3 1 for a detailed procedure TEST CHANNEL Allows several different internal voltages to be routed to an analog output port Useful for diagnosing inter
142. et point is 315 5 C The temperature sensor inside the moly is a type J thermocouple The thermocouple amplifier is located on the STATUS TEMP board If the thermocouple breaks the reading will go to 500 C and turn off power to the heater Reaction Cell Pressure The pressure in the reaction cell is measured by a solid state pressure sensor which measures absolute pressure Absolute pressure was chosen because it is an unambiguous measure of cell pressure This pressure will vary depending on several things 1 The type of pump attached to the analyzer 2 Variations in local weather will cause a 0 3in Hg change in pressure 3 The altitude of the analyzer will cause the cell pressure to change Nominal values are 3 to 10 in Hg A Typical readings are about 5 in Hg A for the external pump and about 8 in Hg A or better for the internal pump Sample Pressure The pressure in the sample inlet line is measured by a solid state pressure sensor which measures absolute pressure Absolute pressure was chosen because it is an unambiguous measure of sample pressure This pressure typically runs 0 5 or so below atmospheric pressure due to the pressure drop in the sample inlet lines NO NO Slope and Offset Values The coefficients of two NO and NO straight line equations determine the calibration of the M200A The values of these parameters can be used to determine the quality of the calibration These 4 parameters contain valuable inform
143. eve and window should be cleaned with methanol and a clean tissue and dried Normally it is not necessary to clean the sample and ozone flow orifices since they are protected by fritted filters If tests shows that cleaning is necessary then do the following A The manifold assembly should be cleaned by removing the O ringed fittings springs fritted filter orifices and O rings It is suggested that the orifice filter and o rings be replaced unless an ultrasonic cleaner and methanol or methylene chloride is available Both orifice and sintered filter may be cleaned with an ultrasonic bath for 30 minutes in either solvent Replace o rings B After cleaning with solvent flush copiously with tap water C Now rinse parts in either DI or distilled water D Dry parts prior to re installation Do not remove the sample and ozone nozzles They are Teflon threaded and require a special tool for reassembly If necessary the manifold with nozzles attached can be cleaned in an ultrasonic bath Reassemble in proper order and re attach onto sensor housing Reconnect pneumatics and heater connections then re attach the pneumatic sensor assembly and the cleaning procedure is complete After cleaning the analyzer span response may drop 10 12 in the first 1 2 days as the reaction cell window conditions 8 9 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 SAMPLE INLET FI
144. external contact external contact closures closures Truth Table 7 9 and Section 9 3 4 3 The Zero Span valves have 3 operational states 1 Sample mode both valves de energized and sample gas passes through the sample cal valve and into the analyzer 2 Zero mode The sample cal valve is energized to the cal mode The zero span valve is de energized in the zero mode thus allowing zero gas to be admitted through the rear panel bulkhead fitting into the analyzer 3 Span mode The sample cal valve is energized and in the cal mode The zero span valve is energized in the span mode With both valves on span gas is admitted through a rear panel bulkhead fitting into the analyzer Zero air and span gas inlets should supply their respective gases in excess of the 500 cc min demand of the Analyzer Supply and vent lines should be of sufficient length and diameter to prevent back diffusion and pressure effects See Table 2 2 3 for fitting location and tubing recommendations Adequate zero air can be supplied by connecting a Purafil charcoal scrubber and 5 micron particulate filter Teledyne API P N 000369 to the zero air inlet tubing The zero air scrubber used in conjunction with the Zero Span Valve option provides an inexpensive source of zero air Another source of zero air is the Model 701 zero air generator 6 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G
145. f 500 ppb and a span gas concentration of 400 ppb is used as an example Other values can be used 1 On the Preamp board see Appendix for schematics set SI and 52 to 8 Turn R19 20 turns clockwise then 3 turns counter clockwise see figure 2 5 2 Set RANGE MODE to SNGL by SETUP RNGE MODE SNGL to select single range operation 3 Set the RANGE to 500 ppb by SETUP RNGE SET and key in 500 then press ENTR 4 Input Zero gas into the sample port and Scroll to the TEST function labeled PMT Typical reading should be less than 50 mV Readings above 150 mV indicate a pneumatic leak light leak contaminated reaction cell bad zero gas or wet air coming into the ozone generator If readings are greater than 150 mV the instrument will not zero or span properly see Sections 9 2 8 9 2 9 di Allow the instrument to sample zero gas for at least 20 minutes to re fill the internal data filters and autozero filter with zero readings Then zero the instrument by CAL ZERO ENTR 6 Set the expected span concentration to 400ppb Enter the expected NO concentration of 400 ppb by pressing CAL CONC NOX Then press CAL CONC NO to enter the expected NO concentration of 400 ppb Then press EXIT to return to the CAL menu 7 Input 400 ppb of NO span gas in the sample inlet port 8 Scroll to the NORM_PMT TEST function 9 23 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 52
146. f adjusting the gain and offset ofthe M200A against some recognized standard The reliability and usefulness of all data derived from any analyzer depends primarily upon its state of calibration In this section the term dynamic calibration is used to express a multipoint check against known standards and involves introducing gas samples of known concentration into the instrument in order to adjust the instrument to a predetermined sensitivity and to produce a calibration relationship This relationship is derived from the instrumental response to successive samples of different known concentrations As a minimum three reference points and a zero point are recommended to define this relationship The true values of the calibration gas must be traceable to NIST SRM s Section 2 0 7 Q A Handbook All monitoring instrument systems are subject to some drift and variation in internal parameters and cannot be expected to maintain accurate calibration over long periods of time Therefore it is necessary to dynamically check the calibration relationship on a predetermined schedule Zero and span checks must be used to document that the data remains within control limits These checks are also used in data reduction and validation Table 7 7 11 summarizes the initial quality assurance activities for calibrating equipment Table 7 7 12 is a matrix for the actual dynamic calibration procedure 7 12 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200
147. fully warmed up and its operation has stabilized During the calibration the M200A should be in the CAL mode and therefore sample the test atmosphere through all components used during normal ambient sampling and through as much of the ambient air inlet system as is practicable If the instrument will be used on more than one range it should be calibrated separately on each applicable range see Section 7 9 Calibration documentation should be maintained with each analyzer and also in a central backup file 7 13 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 12 Activity Matrix for Calibration Procedure 2 Use calibration procedure in Subsec 2 4 Q A Handbook also and Federal Register 3 Converter efficiency gt 96 N this manual Subsec 8 5 this manual TAD Federal Register and Table 8 8 3 see Subsec 8 2 for frequency Subsec 8 6 this manual and Table 8 8 6 and Table 8 8 7 Equipment Frequency And Method Action If Requirements Supplies Of Measurement Are Not Met Calibration Sec 2 0 7 Subsec 7 1 Assayed against an Working gas standard is gases Q A Handbook NIST SRM quarterly unstable and or Sec 2 0 7 Q A measurement method is Handbook out of control take corrective action such as obtaining new calibration gas Dilution gas Zero air free of See
148. g voltage output should measure 80 of the voltage range selected e g 4 00 VDC if 0 5V output is selected The readings on the front panel display should be equal to the expected NO and NO concentrations entered in the procedure given in Table 7 7 15 above See the Troubleshooting Section 9 2 8 if there are problems Also see the Calibration Quality Check procedure Section 7 10 After the zero and the 80 URL points have been set generate five approximately evenly spaced calibration points between zero and 80 URL without further adjustment to the instrument Allow the instrument to sample these intermediate concentrations for about 10 minutes each and record the instrument NO and NO responses 7 23 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Plot the analyzer NO and NO responses versus the corresponding calculated concentrations to obtain the calibration relationships Determine the straight line of best fit mx b determined by the method of least squares After the best fit line has been drawn for the NO and the NO calibrations determine whether the analyzer response is linear To be considered linear no calibration point should differ from the best fit line by more than 2 of full scale 7 8 5 3 GPT NO Calibration Procedure The M200A computes the NO concentration by subtracting the NO from the NO concentration Unlike analog instrumen
149. g will decrease about 1 Hg with each 1000 ft gain in altitude For example the absolute pressure at 10 000 ft 3000 m is about 20 Hg A A typical value near sea level would be about 4200 mV RCELL PRESSURE 0 Hg Abs 40 Hg Abs Like the SAMPLE PRESSURE the RCELL pressure is an absolute pressure measurement With the sample pump off it should read about atmospheric pressure With the pump operating a typical value is 1300 mV for about 5 Hg A reaction cell pressure RCELL TEMP 0 C 70 C Reaction Cell temperature is set to 50 C At the setpoint a typical reading is 3600 mV BLOCK TEMP 0 C 70 C The Block temperature is set to 50 C At the setpoint a typical reading is 3600 mV table continued 9 21 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 6 Test Channel Readings Continued TEST Channel Minimum Maximum Description IZS TEMP 0 C 70 C The IZS temperature is set to 50 C At the setpoint a typical reading is 3600 mV CONV TEMP 0 C 1000 C The Converter temperature is 315 C At the setpoint a typical voltage is 3150 mV PMT TEMP 0 70 The temperature is unique in that the voltage is inverse to the temperature A typical reading for 8 C would be 4200 mV CHASSIS 0 C 70 C The Chassis Box temperature is TEMP variable due t
150. ght leak Faulty HVPS Defective Preamp board Outgassing Moly converter PMT recently exposed to room light Dirty contaminated reaction cell OND tn huy Mis calibrated slope offset outside of limits SAMPLE FLW 500 cc min ESO This is the instrument flow It is computed using the up stream and down stream pressures across the sample flow orifice This method can give a false flow indication if the orifice is plugged and the sample pump is creating a pressure drop It should be taken into account when diagnosing instrument faults A rapid method of determining if the orifice is plugged is to disconnect the sample and ozone tubes from the reaction cell then briefly put your finger over the fittings on the cell You should feel the vacuum build up Also note the difference between the high sample flow and the low ozone flow rate Another reliable method is to attach a rotameter or soap bubble flowmeter to the fittings to measure the flows Flow rate will change a few cc min due to changes in ambient air pressure such as cycling of air conditioning or passing weather fronts Changing altitude changes the ambient air pressure and therefore the sample flowrate This effect is about 15 20 cc min per 1000 feet of altitude change If required the output of the instrument can be compensated for pressure See Section 5 3 9 Table 9 9 5 table continued 9 4 PRINTED DOCUMENTS ARE U
151. ght of NH3 17 g mole for that of NO2 The temperature is set at 50 0 Check SETUP MORE VARS and scroll to the IZS SET variable to verify that the temperature is properly set It should be set to 50 C with over and under temperature warnings set at 49 and 51 There is a 60 cc min flow across the permeation tube at all times to prevent build up of NO gas in the tubing If desired the output of the permeation tube can be adjusted by adjusting the oven temperature up or down slightly The adjust increment is 0 1 to facilitate small adjustments of the setpoint temperature WARNING Do not leave instrument turned off for more than 8 hours without removing the permeation tube Do not ship the instrument without removing the permeation tube The tube continues to emit NO even at room temperature and will contaminate the entire instrument 6 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 MEMBRANE MUST BE UP E LL ATTS gt R NI a x Cue d Der A S 2 1 A A e 2 a 7 fal A Table 6 6 6 IZS Option Permeation Tube Installation 6 7 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx An
152. gs There are 2 different types of current outputs Non Isolated std equipment and Isolated Each requires a different switch setting shown below If you are operating the instrument in voltage output mode the switches should be set to the desired voltage range 9 43 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 11 V F Board Switch Settings DACH Sw 1 Sw 2 Sw 3 Sw 4 Sw 5 Sw 6 Sw 7 0 ON OFF OFF 1 ON OFF OFF 2 ON OFF OFF 3 ON OFF OFF Required settings 10 V output or non isolated current loop Switch State Comment 3 ON Use for non isolated current loop or 10 V output 4 OFF Use for non isolated current loop or 10 V output 5 OFF Use for non isolated current loop or 10 V output 6 OFF Use for non isolated current loop or 10 V output 5 V output or isolated current loop Switch State Comment 3 OFF Use for isolated current loop or 5 V output 4 ON Use for isolated current loop or 5 V output 5 OFF Use for isolated current loop or 5 V output 6 OFF Use for isolated current loop or 5 V output 1 V output Switch State Comment 3 OFF Use for 1 V output 4 OFF Use for 1 V output 5 ON Use for 1 V output 6 OFF Use for 1 V output 100 mV output Switch State Comment 3 OFF Use for 100 mV output 4 OFF Use for 100 mV output 5 OFF Use for
153. h NO span gas in the instrument the value should be 2x the expected span concentration in step 1 above for range settings up to 2000 ppb If over 2000 ppb the value should be 0 2x the expected span concentration Check ET and OT for a response to 2000 mV on the PMT TEST function Ifthe above do not check out perform the Factory Calibration Procedure Section 9 1 6 If the PMT voltage is near zero with span gas check fuse and power to ozone generator 9 31 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 9 Inability to Zero Ifthe ZERO button is not illuminated when attempting to zero that means the reading is outside ofthe software gain ranges allowed In an analog instrument it would be the equivalent to the zero pot hitting the rotation stop Check the following Select the PMT TEST function With zero gas going into the instrument the value should be less than 150 mV typically less than 50 mV If you are getting a high reading the probable reasons are 1 reading may be temporarily high ifthe PMT has been recently exposed to room light If so let the instrument run for several hours with zero gas to get the PMT accustomed to low light levels Leak that admits gas containing NO Contaminated reaction cell Remove and clean cell Wet i e undried ambient air air into the ozone generator Check the PermaPure drier and associated plumbing
154. h any other procedures check the drier for leaks Occasionally the drier gets contaminated The manufacturer of the drier recommends replacing the drier rather than trying to clean it If cleaning is chosen the following options are available 1 Dirt Clean any solids from dryer inlet by brushing Use clean dry air to blow any loose particles from the inlet Deionized water or dilute 5 10 conc in deionized water hydrochloric acid can be passed through the dryer This should be done only with the dryer and at room temperature 2 Organic liquids and freons Rinse the inner and outer tubes using 1 1 1 trichlorethane Follow the solvent with dry air to purge the solvent 3 Inorganic salts and oxgenated hydrocarbons can be removed by rinsing with 10 nitric acid at 50 C 9 55 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 MANIFOLD PERMAI REACTION Table 9 9 18 Ozone Generator Subsystem 9 56 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 7 Flow Pressure Sensor The flow pressure sensor board consists of 2 pressure sensors and a flow sensor See Table 9 9 19 for a diagram of this board From these three sensors four values are computed and displayed on the front panel TEST funcions They are 1 Ozone flow me
155. h can lead to significant errors in NO concentration measurement It is good practice to request a NO analysis from the supplier ofthe NO calibration gas Generally the maximum NO impurity that should be allowed is 1 ofthe NO concentration The NO impurity in the NO standard can be measured by the M200A A procedure is given in the TAD for NO measurement 7 8 2 3 Use of Permeation Tubes As Standards The steps required to compare the concentration of a commercial working calibration standard to an NIST SRM are described in Subsection 7 3 3 of Section 2 0 7 Q A Handbook See Subsection 7 3 6 for the re analysis of permeation tubes 7 8 3 Data Recording Device Either a strip chart recorder data acquisition system or digital data acquisition system should be used to record the data from the M200A s RS 232 port or analog outputs If analog readings being used the response of that system should be checked against a NIST referenced voltage source or meter Data recording device should be capable of bi polar operation so that negative readings can be recorded 7 15 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 4 Gas Phase Titration GPT System 7 8 4 1 GPT Principle of Operation Gas Phase Titration is recommended for calibration of the M200A Those using a NO permeation tube should refer to TAD The principle of GPT is based o
156. he NORMALIZED PMT VOLTAGE measures the PMT signal at the output of the preamp board The difference here is that several normalization functions are applied to this signal before it is displayed The most important is the temperature and pressure compensation factors If NORM PMT is used as suggested in the Factory Calibration Procedure Section 9 1 6 the M200A will be correctly calibrated AZERO Voltage This test measurement is the AUTOZERO voltage It indicates the most recent reading from the AutoZero circuit The units are mV and from 20 to 150 are acceptable 5 9 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 High Voltage Power Supply HVPS The HVPS reading is a measure of the scaled up HVPS programming voltage The voltage used to set the HVPS output is generated on the Preamp board Its value is between 0 and 1 volt corresponding to a voltage of 0 to 1000 volts out of the HVPS The HVPS front panel TEST measurement should be greater than 450 volts and will typically be around 600 800V DC Power Supply DCPS The DCPS voltage is a composite of the 5 and 15 VDC voltages in the Power Supply Module This is meant to be a quick indicator to show if the PSM is working correctly The nominal value is 2500 mV 200 mV Reaction Cell Temperature This is a measurement of the temperature of the reaction cell It is controlled by the computer to 50 1 C Te
157. hecked from Table 4 4 2 The comments section assumes the M200A has been running for at least 45 minutes A more detailed test is in the DIAGNOSTIC menu See Diagnostic tests in Section 9 1 3 9 42 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 3 1 ADC DAC Calibration Procedure Due to the stability of modern electronics this procedure should only need to be performed ifa major sub assembly is exchanged or when the display voltage does not match the input voltage or current to the V F card After completion a Factory Calibration Procedure should be performed see Section 9 1 0 Before the actual calibration is performed switches on the V F card must be correctly set and Jumpers set on the mother board Jumper and switch setting changes must be performed with the instrument power OFF Motherboard Jumpers The motherboard contains 4 pairs of jumpers JP1 JP8 one pair for each analog output channel Each channel can be configured for either voltage or current output Use the Table 9 9 10 to configure the jumpers Table 9 9 10 Motherboard Jumper Settings Terminal Pair J umper Jumper Setting for Jumper Setting Rear panel Pair Voltage Mode for Current Mode DAC 0 NOx 3 4 JP3 JP4 B C A B DAC 1 NO 5 6 JP1 JP2 B C A B DAC 2 NO2 1 2 JPS JP6 B C A B DAC 3 TEST 7 8 JP7 JP8 B C A B V F Board Switch Settin
158. her pump is used it must have the following characteristics The pump must supply 1 slpm at 5 Hg A 2 The ozone scrubber must remove all ozone from the analyzer exhaust 3 Connect the exhaust Table 2 2 3 to a pump with 3 m of 1 4 PTFE tubing Failure to meet the performance specifications will result in poor analyzer performance damage to the pump damage to the analyzer and may jeopardize warranty repairs Teledyne API strongly recommends that the factory supplied pump be used with the 200 4 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 NOTE On vacuum vs absolute pressure Many vacuum gauges read relative to ambient pressure therefore a reading of 25 of mercury Hg at sea level which would give an absolute pressure of about 5 Hg in the reaction cell would read only 20 Hg at high altitude sites Therefore in this manual the vacuum specification of 5 Hg pressure is given as an absolute pressure 5 Hg A reference against zero absolute pressure a perfect vacuum thus removing ambiguities for high altitude sites 4 7 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 4 4 3 External Pump Pack 4 8 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN
159. his represents the scaled up HVPS programming voltage to the HVPS The design of the HVPS precludes taking a single reading that indicates the health of the supply Refer to the HVPS Troubleshooting Section 9 3 8 5 for a procedure for testing the HVPS This TEST function is used primarily to set the HVPS voltage value A value not in the 450 to 900 volt range indicates problems with the HVPS supply DCPS 2500 200 mV DCPS is a composite of the 5 and 15 VDC supplies It has been arbitrarily set at 2500 200 mV If it is not in this range one of the voltages in the supply is not working Check the procedures for diagnosing the Power Supply Module in Section 9 3 5 RCELL TEMP 50 1 C The reaction cell temperature is controlled to 50 C 1 C by the computer It should only read other values when the instrument is warming up If the value is outside the acceptable range go to the procedure for diagnosing the Reaction cell temp supply in Section 9 3 8 2 The alarm limits are less than 45 C and greater than 55 8 48 The Box Temp is read from thermistor on Status Temp board 01086 It should usually read about 5 C above room temp The M200A is designed to operate from 5 to 40 ambient Therefore the box temperature should be in the range of about 10 to 50 Temperatures outside this range will cause premature failures of components and poor data quality Warning limits are
160. htly different slopes for the NO and NO channels Large pulsations when switching to the NO channel is indicative of a bad moly converter When sampling zero gas the PMT reading should be less than 150 mV and relatively constant High or noisy readings could be due to Excessive background light which is caused by a possible contaminated reaction cell Humidity undried ambient air in the ozone generator feed air PMT recently exposed to room light It takes 24 48 hours for the PMT to adapt to dim light Light leak in reaction cell SImproper slopes NORM PMT 0 5000 mV The Normalized PMT reading is to be used as the PMT reading during the FACTORY CALIBRATION procedure In addition to the raw mV reading from the PMT this reading is adjusted using certain other factors to produce an accurate reading for the Factory Calibration procedure table continued 9 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 1 Test Functions Continued Test Function Factory Set Up Comment AZERO Check value in is the current value ofthe AutoZero circuit reading Final Test Values Values are typically 0 mV 20 150 For values outside this range Table 2 2 6 check the AutoZero and NO NO valve for cross port leaks Use Diagnostic mode to manually check the AutoZero valve for correct operation HVPS 450 900 VDC T
161. ie 8 4 FIGURE 8 2 MOLYBDENUM CONVERTER ASSEMBLY 0 0 02000 0 002000000 000000000000 001 8 8 FIGURE 8 3 REACTION CELL ASSEMBLY iii 8 10 FIGURE 8 4 PNEUMATIC DIAGRAM STANDARD CONFIGURATION 8 12 FIGURE 8 5 PNEUMATIC DIAGRAM WITH ZERO SPAN VALVE OPTION eee eene nennen 8 13 FIGURE 8 6 PNEUMATIC DIAGRAM WITH ZS OPTION 8 14 FIGURE 9 1 SPAN CALIBRATION VOLTAGE e 9 25 FIGURE 9 2 CPU BOARD JUMPER SETTINGS eee 9 36 FIGURE 9 3 RS 232 PIN 55 58 00 000200 000 0000000 000000 9 40 FIGURE 9 4 V F BOARD SETTINGS csssscccessssccceessncccecssceeseceessececeessececscsseeesccesseeeceessncecsensnaeescesseeeece 9 46 FIGURE 9 5 POWER SUPPLY MODULE LAYOUT ii 9 51 FIGURE 9 6 ELECTRICAL BLOCK DIAGRAM 0 9 52 FIGURE 9 7 OZONE GENERATOR SUBSYSTEM cere 9 56 FIGURE 9 8 FLOW PRESSURESTISO Birra 9 59 FIGURE 9 9 NO SENSOR MODULE sucia ies 9 60 FIGURE 9 10 NOx SENSOR MODULE e 9 61 FIGURE 9 11 PMT COOLER SUBSYSTEM cirie 9 63 FIGURE 9 12 HIGH VOLTAGE POWER SUPPLY eee 9 65 vii PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 LIST OF TABLES TABLE 2 2 1 REMOVAL OF SHIPPING SCREWS amp CHECK FOR CORRECT POWER
162. ield in VARS menu To get to the variable press SETUP MORE VARS then ENTR and scroll to RS232 MODE then press EDIT The possible values are 5 24 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 11 RS 232 Port Setup Front Panel Decimal Value Description 1 Turns on quiet mode status messages suppressed 2 Places analyzer in computer mode no echo of chars 4 Enables Security Features Logon Logoff 8 Enables TELEDYNE API protocol and setup menus 16 Enable alternate protocol 32 Enable multidrop protocol 64 Enable modem setup string 128 Ignore RS 232 line errors 4096 Enable command prompt NOTE To enter the correct value ADD the decimal values of the features you want to enable For example if LOGON and front panel RS 232 menus are desired the value entered would be 4 8 12 Port Communication The RS 232 can be set up in interactive or computer mode of communication If the port is attached to a computer running an instrument interface program it needs to have different characteristics than if used interactively by a human operator When an operator is communicating with the analyzer via a terminal the analyzer should be placed into TERMINAL MODE which echoes keystrokes allows editing of the command line using the backspace and escape keys and allows recall of the previous command Whe
163. in Hg Calibrations of flow meters are discussed in TAD Gas Phase Titration GPT requires the use of the NO channel of the analyzer to determine the amount of NO generated by titration Therefore it is necessary to calibrate and determine the linearity of the NO channel before proceeding with the calibration It is also necessary to calibrate the NO channel This can be done simultaneously with the NO calibration During the calibration the M200A should be operating in its normal sampling mode and the test atmosphere should pass through all filters scrubbers conditioners and other components used during normal ambient sampling and as much of the ambient air inlet system as is practicable All operational adjustments to the M200A should be completed prior to the calibration The following software features must be set into the desired state before calibration Automatic Converter Efficiency compensation See Sections 7 8 6 and 7 9 this manual Independent range selection See Sections 5 3 4 and 7 9 this manual 1 2 3 Automatic temperature pressure compensation See Table 9 9 5 4 Alternate units make sure ppb units are selected for EPA monitoring See Section 5 Autoranging option See Section 5 3 4 2 Converter efficiency should be set prior to calibration since its value is used in the computation of the NO and NO concentration outputs The analyzer should be calibrated on the same range used for monitoring
164. ing ENTR actually changes the calculation equations so that the concentration displayed is the same as the expected span concentration you entered above thus spanning the instrument 10 Press EXIT Pressing EXIT returns the instrument to SAMPLE mode 2 8 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Step 3 Review the quality of the calibration Calibration Quality Check Procedure Step Number Action Comment 1 Scroll the TEST The SLOPE value for NOx should be 1 0 0 3 If the value is function menu until not in this range check Section 7 10 or 9 If the SLOPE value the NO SLOPE is is in the acceptable range the instrument will perform displayed optimally 2 Scroll the TEST The SLOPE value for NO should be 1 0 0 3 If the value is function menu until not in this range check Section 7 10 or 9 Ifthe SLOPE is in the NO SLOPE is the acceptable range the instrument will perform optimally displayed NOTE The NO and NOx slopes should be equal within 0 1 3 Scroll the TEST The M200A will display the OFFSET parameter for the NOx function menu until equation This number should be near zero A value of 0 0 the NOx OFFSET is 150 mV indicates calibration in the optimal range If the displayed OFFSET value is outside this range check Section 7 4 or 9 for procedures to correct the OFFSET value to near
165. ingle gain control R34 If necessary you can adjust the temperature values by selecting the BOX TEMP TEST function and adjusting R34 until the correct box temp is shown Remember that the temperature inside the case runs several degrees higher than room temperature which should be taken into account when setting BOX TEMP The voltages of the thermistor and thermocouple amplifier outputs are brought out to test points on the edge of the board Refer to the schematic 01086 for details The voltages can also be read using the DIAGNOSTIC SIGNAL I O feature See Table 9 9 4 for details 9 47 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 In addition there is a thermocouple amplifier for the Moly converter Thermistor Temperature Amplifier Adjustments If the temperature readouts are in error 1 Locate the Box temp thermistor the board and place calibrated thermometer near the thermistor 2 Select the BOX TEMP TEST function on the front panel 3 Adjust R34 until the front panel readout matches the thermometer readout This will cause all of the readouts to accurately measure their respective temperatures Molybdenum Converter Thermocouple Amplifier Adjustments The molybdenum converter temperature is sensed by a thermocouple The cold junction compensation and signal conditioning is done on the Temp Status board The buffer amplifier from the thermocoup
166. is displayed the IZS oven temperature control algorithm and temperature display has been enabled in the software Accuracy and Repeatability of permeation tube PTFE membrane of the permeation tube is affected by humidity If the instrument is installed in an air conditioned shelter the air is usually dry enough to produce good results If the instrument is installed in a non climate controlled site that has high humidity variations in the perm tube output will occur For these sites if high accuracy is required an additional source of dry dewpoint of 20 C or less air such as the M701 zero air module should be attached to zero air scrubber inlet 9 66 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 10 Pneumatic System The pneumatic system is diagramed in Table 8 8 6 Table 8 8 7 Table 8 8 8 depending on which options the instrument was ordered with 9 3 10 1 Leak Check CAUTION When doing a leak check do not pressurize the M200A to greater than 15psi Damage to internal components will occur at higher pressures The basic cause of many performance problems is a leak Refer to Section 8 9 for the leak check procedure 9 3 10 2 Pump The external sample pump is capable of maintaining the cell pressure at 5 Hg A If higher pressures are noted the pump may need servicing Check the pump ozone scrubber for leaks
167. ise is computed using the standard deviation of the last 10 minutes of data with the value being computed at the end of each NO cycle It is computed for the channel only The value only becomes meaningful if sampling a constant concentration for more than 20 minutes so the various software filters can stabilize The value shown should be compared to the value observed in Table 2 2 6 Sample Flow The SAMPLE FLOW test function is computed from the pressure measured up stream of the sample flow orifice The pressure down stream of the orifice is also checked to assure the assumptions of the equation are valid SAMPLE FLOW will indicate variations in flow caused by changes in atmospheric pressure but will not detect a plugged sample flow orifice The nominal value is 500 50 cc min Ozone Flow The OZONE FLOW test function is directly measured by a solid state flow meter Variations in this value indicate variations in ozone flow The nominal value for ozone flow is 60 90 cc min PMT Voltage The PMT VOLTAGE shows the PMT signal at the output of the preamp board The waveform of the PMT voltage can be complex and vary from near 0 mV when zero gas is in the reaction cell to 5000 mV when a high concentration of NO is being measured If the PMT reading is consistently 5000 mV that indicates an off scale reading Typical readings bounce around which is normal Normalized PMT Voltage Like the PMT Voltage TEST function above t
168. le 2 2 6 to those in the display Remember that as the instrument warms up the values may not have reached their final values yet If you would like to know more about the meaning and utility of each TEST function refer to Table 9 9 1 Also now is a good time to verify that the instrument was shipped with the options you ordered Table 2 2 6 includes a list of options Section 6 covers setting up the options 6 Electric Test and Optic Test both generate simulated signals in the M200A A Electric Test tests the electronics of the PMT signal path To operate Electric Test from the front panel press SETUP MORE DIAG then scroll to ELECTRICAL TEST and press ENTR to turn on the electric test When ELEC test is operating scroll the TEST function to PMT and compare instrument response to the values indicated in Table 2 2 6 To turn off this test press EXIT For more information on the circuitry being tested refer to the Troubleshooting Section 9 1 3 2 Optic Test is an end to end test of the analyzer HVPS PMT electronics computer It simulates a signal by turning on a LED in the Sensor Module To operate Optic Test from the front panel press SETUP MORE DIAG then scroll to OPTIC test and press ENTR to turn on the optic test Scroll the TEST function PMT and compare instrument response to the values indicated in Table 2 2 6 To turn off this test press EXIT To return to the SAMPLE mode press EXIT until SAMPLE is displayed in the upper left displa
169. le amplifier to the CPU for the Moly temperature has a gain adjustment The voltage times 100 at pins 8 9 of Ul is the Moly temperature in degrees C For example 3 15 VDC at pin 9 of Ul is 315 C The CPU is programmed to always drive the temp to 315 C so the voltage at Ul must be used as the absolute reference as to the correct temperature The temperature will vary 3 degrees due to the operation of the temperature control loop in the CPU The temperature can be adjusted by the R6 pot on the Status Temp board To adjust the molybdenum converter temperature 1 Select the CONV TEMP TEST function on the front panel 2 Wait until the converter is up to temperature usually 30 45 min after a cold start 3 Adjust R6 until the voltage at pin 8 9 of Ul is 3 15 VDC The CONV TEMP TEST function will then read 315 C 4 Recheck the temperature 15 min later and re adjust if necessary 9 3 4 2 Display Brownout During low AC line conditions the display can lock up due to insufficient voltage When low line conditions are approaching this circuit senses the condition by monitoring the un regulated 5 VDC in the Power Supply Module If brownout conditions are met the DISP BROWNOUT line is asserted and the CPU sends a hardware RESET command to the display and sends a BRNOUT RESET pulse back to U4 Brownout conditions will be noticed by the display flashing every 8 seconds 9 48 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A N
170. ll pressure SAMPPRESS SAMP xxx x IN HG A Sample pressure NOXSLOPE NOX SLOPE xxxxx NO slope parameter NOXOFFSET OFFS xxxxx NO offset parameter NOSLOPE NO SLOPE xxxxxx NO slope parameter NOOFFSET NO OFFS xxxxxx NO offset parameter NO2CONC NO2 xxxxx PPB Instantaneous NO concentration NOXCONC NOX xxxxx PPB Instantaneous NO concentration NOCONC NO xxxxx PPB Instantaneous NO concentration TESTCHAN TEST xxxxx MV Test channel diagnostic output CLOCKTIME 55 Time of day Displayed when independent range is enabled Displayed when single or auto range is enabled Depends on which units are currently selected 5 32 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 The T command lists TEST messages Examples ofthe T command are T LIST T LIST ALL T CONVTEMP T LIST NOX T NOX Lists all active test messages Lists all test messages Prints the temperature of the moly converter Prints NO concentration message Prints NO concentration message 5 5 4 WARNING Commands and Messages Table 5 5 18 RS 232 Warning Messages Name Message Description WSYSRES SYSTEM RESET Analyzer was reset powered on WRAMINIT RAM INITIALIZED RAM was erased WSAMPFLOW SAMPLE FLOW WARN Sample flow out of spec WOZONEFLOW OZONE FLOW WARNING Ozone flow out of spec WRCELLPRESS RCELL PRESS
171. lly invariant and the cell pressure and sample pressure factors tend to cancel each other The resultant coefficient has no practical variation with pressure changes due to weather fronts Changes in altitude of 1000 feet usually change the output of the instrument by about 0 5 if compensation is turned off much less if it is operating 9 19 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 5 Model 200A Internal Variables Default Value 7 No Name Units Value Rance Description 0 DAS HOLD OFF min 15 0 60 Time that data is not put into DAS after CAL or DIAG modes 1 TPC_ENABLE Logic OFF ON OFF Temp Pres compensation enable 2 DYN_ZERO Logic OFF ON OFF Enable zero calibration during rear panel contact closure zero mode 3 DYN_SPAN Logic OFF ON OFF Enable span calibration during rear panel contact closure span mode 4 SFLOW_SET cc min 500 400 1000 Nominal sample flow rate 5 OFLOW_ SET cc min 80 0 500 Nominal ozone flow rate 6 IZS_SET SC 50 30 70 IZS temperature set point 7 RS232 MODE Bit 0 0 99999 Value is SUM of following Field decimal numbers 1 enable quiet mode 2 enable computer mode 4 enable security feature 8 enable front panel RS 232 menus 16 enable alternate protocol 32 enable multidrop protocol 8 CLOCK_ADJ Sec 0 60 Real time clock speed adjustment 9 CAL NO2 OFF ON O
172. low A Wet air in generator need to disassemble clean dry w Electrical short circuit C Transformer partial failure Sample inlet vent line too short should be at least 15 Sample exhaust not properly vented creating a backpressure at the sample inlet port of the instrument See Table 2 2 3 for venting recommendations 9 33 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 11 Slow Response 1 Contaminated or dirty sample delivery pneumatics A Dirty plugged sample filter or sample lines B Dirty reaction cell 2 Sample inlet line too long Wrong materials in contact with sample use glass stainless steel or Teflon gt Sample vent line located too far from instrument sample inlet Locate sample inlet vent as close as possible to analyzer Insufficient time allowed for purging of lines upstream of analyzer Leaking NO NO valve Insufficient time allowed for NO or NO cal gas source to become stable Moly converter temperature too low Miscalibration see Table 7 7 1 9 2 12 Analog Output Doesn t Agree with Display Concentration The analog output is proportional to the range Zero volts output corresponds to zero ppb and 5 volts corresponds to the maximum range setting in ppb If this is not observed do the following 1 V F board DAC s out of calibration Do DAC calibration and Factory Calibration 2
173. lt 8 gt 48 PMT TEMP 7 1 C The PMT detector is very temperature sensitive The PMT temperature should always be 7 C except at power up Temperatures more than 1 from the set point indicate problems with the cooler circuit See Section 9 3 8 4 for PMT cooler diagnostic and troubleshooting Warning limits are lt 5 C and gt 15 C MOLY TEMP 315 5 C Moly temp is controlled by the CPU to 315 C After cold start it requires about 30 min to come to temperature After temperature is reached temperature should not vary more than 5 See Section 9 3 4 for troubleshooting Warning limits are lt 290 C and gt 320 C table continued 9 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 1 Test Functions Continued Test Function Factory Set Up Comment IZS TEMP 50 0 4 The IZS temperature is the temperature of the permeation tube oven This temperature is controlled by the CPU and is adjustable in 0 1 C increments This adjustment allows small changes in permeation tube temperature so the permeation rate can be adjusted to an even value The control loop variations show a temperature swing at the control thermistor of a few tenths of a degree Temperature fluctuations of the perm tube however are less than 0 1 Warning limits lt 45 C and gt 55
174. med Data Channels The data in the default Data Channels can be viewed through the SETUP DAS VIEW menu Use the PREV and NEXT buttons to scroll through the Data Channels and press VIEW to view the data The last record in the Data Channel is shown Pressing PREV and NEXT will scroll through the records one at a time Pressing NX10 and PV10 will move forward or backward 10 records For Data Channels that log more than one parameter such as PNUMTC buttons labeled lt PRM and PRM gt will appear These buttons are used to scroll through the parameters located in each record The function of each of the default Data Channels is described below CONC Samples NO and NO concentration data 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 The last 800 hourly averages are stored PNUMTC Collects sample flow and sample pressure data at five minute intervals and stores an average once a day with a time and date stamp This data is useful for monitoring the condition of the pump and critical flow orifice sample flow and the sample filter clogging indicated by a drop in sample pressure over time to predict when maintenance will be required The last 360 daily averages about 1 year are stored CALDAT Logs new slope and offset every time a zero or span calibration is performed also records the sample concentration reading jus
175. ment will not however allow a zero cal on any signal level therefore it is not possible to zero the instrument with span gas in the reaction cell If the ZERO key does not come on as expected check Section 9 2 9 5 2 2 3 Span Pressing the SPAN key along with ENTR will cause the instrument to adjust the SLOPE value of the internal formula so the instrument displays the span value The expected NO and NO span concentrations must be entered before doing a SPAN calibration See Table 7 7 4 Like the Zero calibration the Span cal cannot be done with any concentration of span gas If the signal level is outside certain limits the SPAN key will not be illuminated If you encounter this condition see Section 9 2 9 It is also possible at low levels of span concentration that BOTH the ZERO and SPAN keys might be on thus allowing you to either zero or span the instrument In this case care must be taken to perform the correct operation or the analyzer can become mis calibrated 5 2 2 4 NO NO Cal Concentration Before the M200A can be spanned it is necessary to enter the expected span concentrations for NO and NO This is done by using CAL CONC NOX or CAL CONC NO keys for NO and NO span concentrations respectively Concentration values from 30 to 19000 ppb are accepted 5 12 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 2 2 5 Formula Values The slope and offse
176. mittent instrument faults OPTICAL TEST Sets the M200A into a known state and turns on an LED near the PMT to test the instrument signal path See Section 9 1 3 3 for details on using this test ELECTRICAL TEST Tests just the electronic portion of the PMT signal path Used in conjunction with optic test see Section 9 1 3 2 03 GEN OVERRIDE This function controls the power to the ozone generator It does not indicate status of the generator RS 232 Causes a 1 second burst of data to be transmitted from the RS 232 port Used to diagnose RS 232 port problems See Section 9 1 3 7 9 3 2 for RS 232 port diagnostic techniques 9 12 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 1 3 1 Signal I O Diagnostic Table 9 9 4 Diagnostic Mode Signal 1 DSP_BROWNOUT NO Display brownout is used to keep the display from getting corrupted during low line voltage conditions Circuitry on the Status Temp board 01086 senses low line voltage and sets this bit The CPU reads this generates the BROWNOUT_RST signal described below 1 EXT_ZERO_CAL NO Shows state of status input bit to cause the M200A to enter Zero Calibration mode Use to check external contact closure circuitry 2 EXT_SPAN_CAL NO Shows state of status input bit to cause the M200A to enter the Span Calibration mode Use to check external contact closure circuitry
177. mperatures outside this range will cause the M200A output to drift Box Temperature This TEST function shows the temperature inside the chassis of the M200A The temperature sensor is located on the Status Temp Board Typically it runs 2 to 10 C higher than the ambient temperature The M200A has been engineered to maintain stable output over 5 to 40 C ambient temperature range PMT Temperature The temperature of the PMT is closely controlled by a dedicated proportional temperature controller The nominal set point is 7 1 C Readings outside this range will cause instrument drift due to gain changes in the PMT detector IZS Temperature The IZS option has an oven for permeation tubes The oven temperature is nominally 50 The permeation tube temperature is stable to 0 1 C although it is normal to see the temperature on the front panel move 0 4 C due to the proximity of the temp sensor to the heater It can be adjusted from the front panel by pressing SETUP MORE VARS and selecting the IZS_SET item and entering the desired temperature Using this adjustment the permeation rate of the permeation tube can be adjusted to a desired value See Section 6 3 for information on adjusting the IZS temperature 5 10 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Moly Temperature The moly temperature is controlled by the computer The nominal s
178. n a host computer or data logger is connected to the analyzer it should be placed into COMPUTER MODE which does not echo characters received or allow the special editing keys See Table 6 6 5 for relevant commands 5 25 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 12 RS 232 Switching From Terminal Mode to Computer Mode Key Function Control T ASCII 20 decimal Switch to terminal mode echo edit Control C ASCII 3 decimal Switch to computer mode no echo no edit Ifthe command line doesn t seem to respond to keystrokes or commands one of the first things you should do is send a Control T to switch the command line interface into terminal mode Also some communication programs remove CTRL T and CTRL C characters from the byte stream therefore these characters will not be sent to the analyzer Check your communications program owners manual Entering Commands in Terminal Mode In terminal mode all commands must be terminated by a carriage return commands are not processed until a carriage return is entered While entering a command you may use the following editing keys Table 5 5 13 RS 232 Terminal Mode Editing Keys Key Function CR carriage return Execute command BS backspace Backspace one character to the left ESC escape Erase entire line Words such as T SET
179. n check There are many operational choices such as moving the check backwards or forwards a fixed time each day Setup ofthe AUTOCAL is covered in Table 6 6 2 Dynamic Zero Span Calibration The AUTOCAL system described above can also optionally be used to calibrate the instrument once each 24 hours The dynamic calibration is enabled by setting Dynamic Zero Span buttons to ON Before proceeding with enabling DYNAMIC Z S you must setup the AUTOCAL feature Enabling AUTOCAL is described in Table 6 6 2 To enable DYNAMIC Zero Span Calibration 7 7 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 8 Enabling Dynamic Zero Span 1 Press Causes the M200A go to the AutoCal menu SETUP ACAL 2 Press Select the sequence you want for dynamic calibration PREV NEXT Press SET Select the SET menu 4 Press Scroll through the SET menu to the CALIBRATE attribute PREV NEXT Press EDIT Set the CALIBRATE attribute value to ON to enable Dynamic Span Press EXIT Causes the M200A to return to SAMPLE mode NOTE If you try a Dynamic span calibration using the NO permeation tube as a calibration gas source the NO channel concentration will be zero due to the lack of NO in the NO permeation tube An error message will be displayed CANNOT CALIBRATE We recommend a calibrated NO tank for complete calibration Also see the CAL ON NO2 option
180. n covered in Section 9 1 6 The offset value gives information about the background signal level Check the observed offset value against the factory value in Table 2 2 6 If significantly higher check Section 9 1 6 Also after calibration check the AutoZero reading and compare it against the factory checkout value Increasing readings are a predictor of problems 7 35 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 21 Calibration Quality Check Step Number Action Comment 1 Scroll the TEST The SLOPE value for NO should be 1 0 0 3 If the value is function menu until not in this range check Section 9 1 6 Ifthe SLOPE value is in the NO SLOPE is the acceptable range the instrument will perform optimally displayed 2 Scroll the TEST The SLOPE value for NO should be 1 0 0 3 If the SLOPE is function menu until in the acceptable range the instrument will perform optimally If the NO SLOPE is the value is not in this range check Section 9 1 6 displayed NOTE NO and NO slopes should be equal within 0 1 3 Scroll the TEST This number should be near zero A value of 0 0 20 150 function menu until indicates calibration in the optimal range This number already the NO OFFSET is has the AutoZero value subtracted out and is mainly the displayed background signal due to the molybdenum converter Ifthe
181. n emit a burnt odor for the first 24 hours this is normal Allow the converter to burn in for 24 hours then re calibrate the instrument 8 7 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 8 8 4 Molybdenum Converter Assembly 8 8 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 7 Cleaning the Reaction Cell The reaction cell should be cleaned whenever troubleshooting points to it as the cause of the trouble A dirty cell will cause excessive noise unstable zero or span or low response To clean the reaction cell it is necessary to remove the reaction cell from the sensor housing Use the following guide 1 2 peo ce ee 10 11 Turn off the instrument power and vacuum pump Loosen the hold down screws for pneumatic sensor assembly and move the assembly to the side Disconnect the exhaust fitting and inlet fittings See Table 8 8 5 Loosen four screws holding the reaction cell to the PMT housing Disconnect heater thermistor and lift the cell away The reaction cell will separate into two halves A The manifold assembly B The reaction block with reaction sleeve and window The reaction sle
182. n many uses these flow settings are known and need only to be substituted in Equations 7 5 and 7 6 to verify the required conditions Before doing any calculations the URL and flow demand of the analyzer being calibrated must be known Operating parameters are determined from the operations manual Upper range limit 0 5 ppm and Flow demand 500 cm min Volume of calibrator reaction chamber is determined by physical measurement 180 cm The concentration of the NO standard gas to be used is determined by reference against an NIST SRM Section 2 0 7 Q A Handbook NO stp 50 5 ppm 1 Determine the minimum total flow Fr required at the output manifold using Equation 7 1 Fr 500 cm min 110 100 550 cm min 7 18 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Because low flows are difficult to control and measure it is often advantageous to set a higher total flow than needed In this example we will let Fr 2750 cm3 min 2 Determine the highest NO concentration required at the output manifold using Equation 7 2 NO our 0 5 ppm 90 100 0 45 ppm 3 Calculate the NO flow required to generate the NO concentration NO Jour using Equation 7 3 0 45 2750 cm jj Dom Dem in ie 50 5 ppm 4 Calculate the required flow rate through ozone generator Fo using Equation 7 4 50 5 348
183. n the rapid gas phase reaction between NO and O which produces stoichiometric quantities of as shown by the following equation 03 gt NO 02 Given that the NO concentration is known for this reaction the resultant concentration of NO can be determined Ozone is added to excess NO in a dynamic calibration system as shown in Table 7 7 13 and the NO channel of the chemiluminescent analyzer detects the changes in NO concentration After the addition of O3 the observed decrease in NO concentration on the calibrated NO channel is equivalent to the concentration of NO produced The amount of NO generated may be varied by adding varying amounts of from a stable generator All zero air used in this procedure should conform to the requirements stated in Section 7 Dynamic calibration systems based on this principle are commercially available or may be assembled by the user A recommended calibration system is described in the Federal Register and detailed in TAD 7 8 4 2 GPT Calibrator Check Procedure It has been determined empirically that the NO O reaction goes to completion lt 1 residual if the NO concentration in the reaction chamber ppm multiplied by the residence time min of the reactants in the chamber is gt 2 75 ppm min The theory behind the development of this equation is in the Federal Register and in TAD The following procedures and equations should be used to determine whe
184. nalyzer Instruction Manual 02246 Rev G DCN 5247 Table 10 4 Teledyne API MODEL 200A Expendables Kit IZS 005560000 AKIT Expendable 6 TBS ACT Charco i 005970000 AKIT Expendable BS J Finen ss 0020200 2 Finer LITT pa O Ring Flow zov 4 Table 10 5 Teledyne API MODEL 200A Level 1 Spares Kit o Oo S A wax ASSEMBLY HIGH VOLTAGE POWER SUPPLY KIT REPLACEMENT COOLER ASSEMBLY i osoen mouron Too ASSY WELDED MOLY CONV WOVALLONGIE 1 HEATER REACTION E BW inwonooiso CLAMP HOSE NYLON ie 3 Croon Pume Reor SOLID STATERELAY ae o mowos ravon AN vae SOLENOID VALVE STAINLESS STEEL IN i 2 10 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 10 6 Teledyne API MODEL 200A Spares Kit for 1 Unit CO A BE HEATER REACTION CELL 12W 120V GOW2AVJ CEAP KB 1 Psooogoio POWER SUPPLY svswmcmne Table 10 7 Teledyne API MODEL 200A 37 mm Filter Expendables with CH1 003650300 AKIT TEE FILTER IMM um 005960000 AKIT EXPEND ACT CHARCOAL 1 N ESC FILTER pro 1 wwo man LLC oR00
185. nd line interface To clear the sample flow warning shown above the command would be W WSAMPFLOW 5 5 5 CALIBRATION Commands and Messages There are several methods of both checking the calibration and calibrating the M200A these are discussed in Section 7 The C command executes a calibration command which may be one of the following Table 5 5 19 RS 232 Calibration Commands Command Description C id ZERO 1 or 2 Start remote zero calibration The number is optional and selects the range to calibrate If not specified the range defaults to range 1 C id COMPUTE ZERO Tells the instrument to compute a new slope and offset Same as pressing ZERO ENTR on front panel Must be given after a C ZERO command C id SPAN 1 or 2 Start remote span calibration C id COMPUTE SPAN Tells the instrument to compute a new slope and offset Same as pressing SPAN ENTR on front panel Must be given after aC SPAN command C id ASEQ number Executes automatic calibration sequence 1 2 or 3 C id EXIT Exits the current calibration step and goes to the next one C id ABORT Aborts the entire calibration sequence 5 34 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 20 RS 232 Calibration Examples Action RS 232 Commands Comments Zero Calibration C ZERO Z S valves switched to admit C COM
186. ng Predictive Diagnostics and trending to determine when maintenance and servicing will be required To print out the properties of all of the data channels enter D PRINT To print the properties of just a single data channel enter D PRINT name For example to print the properties of the CONC data channel enter D PRINT CONC 5 37 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 To print records from a DAS data channel enter D REPORT name RECORDS nnn COMPACT VERBOSE Examples of reports are D REPORT RECORDS 35 VERBOSE D REPORT CALDAT RECORDS 10 D REPORT PNUMTC RECORDS 155 VERBOSE Automatic RS 232 reporting can be independently enabled and disabled for each Data Channel For all default data channels automatic reporting is initially set to OFF If this property is turned on the Data Channel will issue a report with a time and date stamp to the RS 232 port every time a data point is logged The report format is shown below D 94 08 00 0200 CONC AVG NXCNC1 1234 5 PPB D 94 08 00 0200 CONC AVG NOCNC1 1234 5 PPB D 94 08 00 0200 CONC AVG N2CNC1 1234 5 PPB One CONC report consists of D Type of report Diagnostic 94 08 00 Time and Date stamp Julian day Hr Min 0200 Instrument ID number CONC Data Channel name CONC concentration data PNUMTC pneumatic parameters CALDAT
187. nic fault in the preamp causing it to have a voltage on the PMT output pin during the AutoZero cycle C Reaction cell contamination causing high background gt 40 mV light readings D Broken PMT temperature control circuit allowing high zero offset After fixing the cause of the high AutoZero filter readings the M200A will take 15 minutes for the filter to clear itself Check for leaks Check for used up zero air canister if the instrument has the IZS option and the canister is being used to zero the instrument Excessive Noise Common reasons for excessive noise are ra er m Leak in pneumatic system Light leak check the sensor module with strong light HVPS noisy see HVPS test procedure See Section 9 3 8 5 Defective electronic components on preamp board use optic test and electric test to check electronics optics and observe noise Contamination of ozone generator and or reaction cell This can be wet air or impurities This can be detected by high PMT readings with zero air as sample gas Verify this condition by turning off the ozone generator using the DIAG mode command and observing a drop in PMT reading of more than 50 mV or 25 ppb Ifthe ozone generator or reaction cell is contaminated disassemble and clean Broken PMT temperature control circuit Check PMT TEMP TEST function Mis calibration Check NO NOx SLOPES in TEST function Reaction cell pressure too high Check RCEL TEST function
188. nt events like calibration or warning messages If these messages are captured on a printer or remote computer they provide a continuous audit trail of the analyzers operation and status 5 23 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 5 1 Setting Up the RS 232 Interface The baud rate is set from the front panel by SETUP MORE COMM BAUD Select the baud rate appropriate for your application 300 1200 2400 4800 9600 or 19 200 It is important to note that the other device must have identical settings in order for the communications to work correctly Second is physical wiring of the analyzer to the other unit We have incorporated into the Analyzer LED s that signal the presence of data on the communications lines and also switches to easily re configure the analyzer from DCE to DTE if necessary In addition the front panel diagnostics allow test data streams to be sent out of the port on command This flexibility and diagnostic capability should simplify attaching our equipment to other computers or printers If problems occur see the Troubleshooting Section 9 3 2 Setup from the Front Panel There are 2 additional RS 232 setups that can be done via the front panel 1 Set the instrument ID number by SETUP MORE COMM ID and enter a 4 digit number from 0000 9999 This ID number is part of every message transmitted from the port 2 Set RS 232 mode bit f
189. nternal Variables o da ad 9 18 9 1 5 Test Channel Analog OMPI 9 20 9 1 6 Factory Calibration Procedure cause De RR 9 23 9 2 PERFORMANCE PROBLEMS a h 9 26 92 1 AC Power Check A t een AA E A ATA ATA 9 27 922 Flow EA Dm 9 27 9 2 3 No Responseto Sample ur ER Rau 9 28 VA A i ate os me pepe eo pete us LN Deme Nt edat 9 29 DO E SN M iui ia 9 29 9 2 6 Unstable Sp gs oe e oo el e 9 30 SL T MTS ta LS are 9 3 9 2 5 Inability to O 9 31 Inability1e Z GEO td dildo tea 9 32 9 2 10 Non Linear Response a aaa 9 33 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 92 11 Slow 5 iii aaa 9 34 9 2 12 Analog Output Doesn t Agree with Display Concentration ii 9 34 9 3 SUBSYSTEM TROUBLESHOOTING AND ADJUSTMENTS 9 35 9 3 1 Computer Display cr ann 9 35 NR dimmi unica none a 9 38 9 3 3 Voltage Frequency V F Board Lillian 9 41 TEM a ad al 9 47 9 3 5 Power Supply Module a Lada ia 9 49 9 3 6 Ozone Generator a A 9 54 9 3 T Blow Pressure Sensor near ehe isn 9 57 9 3 8 NO Sensor Modulen ede a ea 9 62 9 3 9 Z S Valves amp IZS Permeation Tube Oven En 9 66 9 510 Pneumatic System D uds oe RL 9 67
190. o variable ambient air temperature The Box temp generally runs about 5 C above the surrounding air temp Thus in a 25 room the Box temp would be about 30 C and have a TEST channel voltage of about 2000 mV DCPS 5000 mV The DCPS is composite of several DC VOLTAGE power supply voltages in the instrument It has been arbitrarily set at 2500 mV which is typical HVPS 0V 5000 V The HVPS voltage is a scaled up VOLTAGE reading of the programming voltage going to the HVPS Zero to 1000 mV corresponds 0 1000 VDC for the HVPS which is the maximum voltage possible A typical reading would be 700 mV corresponding to 700 VDC for the HVPS Minimum and Maximum readings depend on the DAC 3 switch settings of the V F board For the standard 5 VDC range minimum corresponds to 0 VDC and maximum corresponds to 5 VDC 9 22 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 1 6 Factory Calibration Procedure The Factory Cal procedure balances the preamp and software gain factors so the instrument has optimum noise linearity and dynamic range It should be used when you are unable to zero or span the instrument when the slope and offset values are outside of the acceptable range or when other more obvious reasons for problems have been eliminated Factory Calibration Procedure NOTE In this procedure a range o
191. of the display to show the various test functions Example 2 testing key 8 right most key At the top level menu key 8 is defined as the SETUP key pressing key 8 should cause the SETUP menu to be displayed Example 3 Ifthe 5 character field above any key is blank the key is not defined pressing the key has no effect 9 3 1 4 Front Panel Status Indicators The 3 status LED s indicate several functional states of the instrument such as calibration fault and sample modes The state of the LED s is controlled by 3 lines on the parallel port of the SBC40 Functioning of the LED s can be checked by Turn off the 200 power 2 While watching the LED s turn on the instrument power 3 When the power comes up the computer momentarily applies power to all 3 LED s If all the LED s are observed to light they are working properly 9 37 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 3 2 RS 232 Communications The M200A uses the RS 232 communications protocol to allow the instrument to be connected to a variety of computer based equipment RS 232 has been used for many years and is well documented Generally every manufacturer observes the signal and timing requirements of the protocol very carefully Problems arise when trying to specify connectors and wiring diagrams that attach the analyzer to various devices 9 3 2 1 RS 232 Connection Ifthe RS 232
192. on TIME This is the time of day clock readout It is used to time the AutoCal cycles The speed of the clock can be adjusted by the CLOCK_ADJ variable in the VARS menu The clock can be set via SETUP CLOCK TIME from the front panel 9 7 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 1 2 Fault Diagnosis with WARNING Messages The M200A monitors several internal values for alarm conditions Ifthe condition for an alarm is met the alarm is displayed on the front panel and the warning is transmitted out the RS 232 port If a warning is present it can be cleared by pressing the CLR key on the front panel If uncleared warnings are present they can be examined by pressing the MSG button on the keyboard Any time the instrument is powered up the SYSTEM RESET alarm will be displayed Generally it is ok to ignore warnings that are displayed shortly after power up only if they persist should they be investigated Table 9 9 2 shows the warning messages and gives some possible causes 9 8 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 2 Front Panel Warning Messages Message Description SYSTEM RESET Analyzer was reset powered on This warning occurs every time the instrument is powered up as in a power failure It can also occur ifthe RAM or EEPROM is
193. or rebuild pump The internal sample pump pressures tend to run slightly higher than the external pump due to its smaller size As in the case above if higher pressures are noted the pump may need servicing In the internal pump configuration the ozone scrubber is integrated into the molybdenum converter 9 67 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 THIS PAGE IS INTENTIONALLY LEFT BLANK 9 68 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 10 M200A SPARE PARTS LIST Table 10 1 Teledyne API M200A Spare Parts List 10 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 10 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 10 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 10 4 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 10 2 Teledyne API MODEL 200A 37 mm Filter Expendables Kit Includes Table 10 3 Teledyne API MODEL 200A 47 mm Filter Expendables Kit Includes 10 5 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx A
194. or more details 7 30 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 10 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 an NO concentration between 0 08 and 0 10 ppm The analyzer must be operated in its normal sampling mode and the precision test gas must pass through all filters scrubbers conditioners and other components used during normal ambient sampling The standards from which precision check test concentrations are obtained must be traceable to NIST SRM Those standards used for calibration or auditing may be used 7 8 10 3 Precision Check Procedure 1 Connect the analyzer to a precision gas that has an NO concentration between 0 08 and 0 10 ppm An NO precision gas may be generated by either GPT or a NO permeation tube If a precision check is made in conjunction with a zero span check it must be made prior to any zero or span adjustments 2 Allow analyzer to sample precision gas until a stable trace is obtained Record this value NO and NO precision checks should also be made ifthose data are being reported Information from the check procedure is used to assess the precision of the monitoring data see Section 2 0 8 Q A Handbook for procedures for calculating and reporting precision 7 8 11 Recommende
195. oreign Weekly visual inspection Clean repair or replace system material leaks as needed obstructions sample line connected to manifold Recorder 1 Adequate ink amp Weekly visual inspection 1 Replenish ink and paper paper supply Legible ink traces 2 Adjust time to agree 3 Correct chart speed and range 4 Correct time with clock note on chart Analyzer operational 1 TEST Weekly visual inspection Adjust or repair as settings measurements at needed nominal values 2 M200A in SAMPLE mode Analyzer operational Zero and span within Level 1 zero span every 2 1 Find source of error check tolerance limits as described in Subsec 9 1 3 of Sec 2 0 9 Q A Handbook weeks Level 2 between Level 1 checks at frequency desired by user and repair After corrective action re calibrate analyzer Precision check Assess precision as Every 2 weeks Subsec Calc report precision PRINTED DOCUMENTS ARE UNCONTROLLED described in Sec 2 0 8 3 4 3 Ibid Sec 2 0 8 Ibid and Subsec 3 4 3 Ibid 7 29 Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 10 ZERO and SPAN Checks A system of Level 1 and Level 2 zero span checks see Table 7 1 is recommended These checks must be conducted in accordance with the specific guidance given in Subsection 9 1 of Section 2 0 9 Handbook Level 1 zero and span checks mu
196. ostic test names D id ENTER name Enters and starts name diagnostic test D id EXIT Exits diagnostic mode D id RESET Resets analyzer same as power on D id RESET RAM System reset plus erases RAM Initializes DAS NO NO conc readings calib not affected D id RESET EEPROM System reset plus erases EEPROM RESET RAM actions setup variables calibration to default values Restores all factory defaults D id PRINT Prints properties for all data channels DAS D id PRINT name Prints properties for single data channel Quotes around name are required D id REPORT name RECORDS number Prints DAS records for a data channel Quotes around name are required Parameters in brackets are optional COMPACT VERBOSE V id LIST Print all setup variable names and values V id name Print individual setup variable value V id name value Sets setup variable to new value V id CONFIG Print analyzer configuration V id MODE Print current analyzer mode 5 29 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 15 RS 232 Command Summary Terminal Mode Editing Keys Definition BS Backspace ESC Erase line CR Execute command NC Switch to computer mode Computer Mode Editing Keys Definition LF Execute command
197. r A Check for AC Power Section 9 2 1 Do flow checks Section 9 2 2 w C Confirm that sample gas contains NO or NO Check instrument electronics A Do ELEC TEST procedure in DIAGNOSTIC menu Section 9 1 3 2 Do OPTIC TEST procedure in the DIAGNOSTIC menu Section 9 1 3 3 Ifthe M200A passes ET and OT that means the instrument is capable of detecting light and processing the signal to produce a reading Therefore the problem is in the pneumatics or ozone generator Check ozone generator subsystem Do diagnostic test of ozone generator subsystem see Section 9 3 6 Check for disconnected electrical cables to sensor module 9 28 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 4 Negative Output 1 9 2 5 Mis calibration The zero gas that was used to zero the M200A contained some NO gas that is it had more NO gas than that of the sample air May also be caused by doing a zero calibration using ambient air If NO NOx OFFSET TEST functions are greater than 150 mV reaction cell contamination is indicated Corruption of the AutoZero filter If a significant signal was detected during the AutoZero cycle that higher reading can enter the AutoZero filter The value of the AutoZero filter is subtracted from the current reading thus producing a negative reading High AutoZero readings can be caused by A Leaking AutoZero valve B Electro
198. r Pollution Measurement Systems Volume I Principles EPAN 600 9 76 005 December 1984 Quality Assurance Handbook for Air Pollution Measurement Systems Volume II Ambient Air Specific Methods EPA 600 4 77 027a December 1986 Quality Assurance Requirements for Prevention of Significant Deterioration PSD Air Monitoring Appendix B Federal Register Vol 44 No 92 pp 27582 27584 May 1979 7 37 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 THIS PAGE IS INTENTIONALLY LEFT BLANK 7 38 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 MAINTENANCE 8 1 Maintenance Schedule NOTE The operations outlined in this chapter are to be performed by qualified maintenance personnel only Table 8 8 1 Preventative Maintenance Schedule Item Maintenance Interval Reference Section TEST Functions 6 12 month intervals Table 9 9 1 Zero Span Calibration Annually or after repairs Section 7 Zero Span Checks Daily Section 7 Table 6 6 2 Particulate Filter Weekly as needed Table 8 8 3 Ozone Scrubber on Pump Pack Replace charcoal every 3 months Section 4 2 7 Table 4 4 3 Filter for Ozone Scrubber Replace every 12 months Table 4 4 3 Filter for PermaPure Drier Replace every 12 months Table 9 9 18 Zero Air Canister Refill every 3 months Section 8 5
199. r heaters and the ozone generator The only voltages not generated in the PSM are the high voltage DC required by the PMT which is generated inside the sensor module and the high voltage AC used by the ozone generator 4 2 7 Pump Valves Pneumatic System A standard M200A comes with two valves The NO NO valve switches sample gas into the reaction cell from either the sample inlet port or from the moly converter into the reaction cell Periodically the AutoZero valve shuts off sample flow to the reaction cell to measure the detector dark signal A catalytic scrubber contained in the moly converter assembly removes the ozone present in the exhaust stream Ifthe external pump is selected This option is not available with the internal pump The external Pump Pack includes a vacuum pump and optional charcoal NO scrubber By using this pump it is possible to remove a significant source of acoustic noise and vibration from the immediate area of the analyzer The pump pack is supplied with 0 25 tube fitting to connect to the exhaust fitting on the M200A rear panel See Table 2 2 3 for hook up information Plugging the power cord into an AC outlet turns on the pump pack see Table 4 4 3 The internal pump has slightly lower performance specifications and shorter MTBF however it consumes significantly less power and makes an instrument that has a single chassis The NO scrubber option A pump is supplied as standard equipment however if anot
200. rate analog outputs and provide a user interface via the display keyboard and RS 232 port These operations appear to be happening simultaneously but are actually done sequentially based on a priority queuing system maintained by the operating system The jobs are queued for execution only when needed therefore the system is very efficient with computer resources The M200A is a true computer based instrument The microprocessor does most of the instrument control functions such as valve switching and temperature control Data collection and processing are done entirely in the CPU with the final concentration values being sent to a D A converter to produce the instrument analog output The computer memory is divided into 3 sections ROM memory contains the multi tasking operating system code plus the instructions that run the instrument The RAM memory is used to hold temporary variables and current concentration data The EEPROM memory contains the instrument set up variables such as range and instrument ID number The EEPROM data is non volatile so the instrument can lose power and the current set up information is preserved 4 2 4 V F Board The V F board is multifunctional consisting of input channels digital 1 channels and analog output channels Communication with the computer is a STD bus interface The computer receives all ofthe instrument data and provides all control functions through the V F board 4 2 5 Front Panel
201. rmal mode voltage protection Vioop 28V max which is sufficient to drive up to a 1000 ohm load 9 3 5 Power Supply Module The Power Supply Module consists of several subassemblies described in Table 9 9 13 9 49 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 13 Power Supply Module Subassemblies Module Description Linear Power Supply Board The linear power supply board takes multiple voltage inputs from the power transformer and produces 5 15 15 12 VDC outputs The outputs are routed to two external connectors P2 and P3 See Table 9 9 14 The 5 is used for operating the CPU The 15 is used in several locations for running op amps and IC s The 12 is used for operating fans and valves Switching Power Supply The switching power supply supplies 15 VDC at4 A to the PMT cooler control on the Sensor Module The output is made available through J10 on the Switch Board There is a load resistor on the Switch Board to keep the output stable when little current is required from the supply Switch Board The Switch Board has many different functions It takes logic signals from the V F board and uses them to switch 4 115 VAC and 4 12 VDC loads The board also contains the instrument central grounding tie point It routes unswitched AC and DC power as needed Connector J2 programs the power transformers to take 115 220
202. s amp Check for Correct Power 2 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 e RECORDER REMOTE IN SIGNMENT PIN PIN SAMPLE SIGNMENTS STATUS IN TABLE 6 5 IN ZERO NMENTS SIGNMENT El T EXHA REMOTE IN PIN A PIN ii E L 1 qw EX Zu 5 5 RDER SE E 2 PIN N Table 2 2 2 Rear Panel 2 4 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 4 MAXIMUM TH E ZERO SPAN LE 1 El M AIRSINI d VE RECORDER FA FA FA AN 21 Sf em REMOTE IN S DC TUBING FITTING MATERIAL 1 4 PTFE N GLASS STAINLESS STEEL ONLY
203. s set each time the instrument power is turned on If there is an internal short causing a trip the switch will automatically return to the OFF position when an attempt is made to turn it on Flow Check Check TEST function RCEL this is the absolute pressure in the reaction cell It should be 5 10 in Hg A Check that pump is running Check RCEL TEST function for proper pressure Check that the pump tubing is connected to rear of analyzer Test that pump is producing vacuum by removing fitting at rear of analyzer and checking for suction at fitting Check for flow at reaction cell A Remove the 1 8 fitting that carries sample this tube comes from the valve assembly on the moly converter Plug the fitting on the reaction cell with your finger and note the vacuum produced B Remove the ozone fitting also and compare relative flow rates Sample should be much higher 500 cc min than ozone 80 cc min Re connect the sample and ozone lines then check RCEL TEST function for proper vacuum reading Should be 5 10 Hg A Check for broken flow or pressure sensor Leak check analyzer See Section 8 9 for leak check procedure 9 27 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 2 3 No Response to Sample 1 Confirm correct operation of analog output by performing Analog Output Step Test in Section 9 1 3 5 Confirm general operation of analyze
204. shipped in single range mode set at 500 ppb We MODE SING ENTR recommend doing the initial checkout on the 500 ppb range 6 Press After SETUP RNGE SET enter 500 and press ENTR The SETUP RNGE SET instrument will now be in the 500 ppb range 7 Press EXIT Returns instrument to SAMPLE mode 2 7 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Step 2 Calibrate the instrument Zero Span Calibration Procedure Step Number Action Comment 1 Input Zero gas Allow Zero gas to enter the sample port on the rear of the instrument 2 Press CAL The M200A enters the calibrate mode from sample mode 3 Wait 10 min Wait for reading to stabilize at the zero value If you wait less than 10 minutes the final zero value may drift 4 Press ZERO The ZERO button will be displayed 5 Press ENTR Pressing ENTR actually changes the calculation equations and zeroes the instrument 6 Input Span Gas Switch gas streams to span gas 7 Wait 10 min Wait for reading to stabilize at the span value If you wait less than 10 minutes the final span value may drift 8 Press SPAN The SPAN button should be displayed If it is not check the Troubleshooting Section 9 2 8 for instructions on how to proceed In certain circumstances at low span gas concentrations lt 100ppb both the ZERO and SPAN buttons will appear 9 Press ENTR Press
205. sition system DAS that enables the analyzer to store concentration data as well as diagnostic parameters in its battery backed memory This information can be viewed from the front panel or printed out through the RS 232 port The diagnostic data can be used for performing Predictive Diagnostics and trending to determine when maintenance and servicing will be required The logged parameters are stored in what are called Data Channels Each Data Channel can store multiple data parameters The Data Channels can be programmed and customized from the front panel A set of default Data Channels has been included in the M200A software For more information on programming custom Data Channels a supplementary document containing this information can be requested from Teledyne API 5 3 3 1 Data Channels The function of the Data Channels is to store report and view data from the analyzer The data may consist of NO NO concentration or may be diagnostic data such as the sample flow or reaction cell pressure 5 14 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 The M200A comes pre programmed with a set of useful Data Channels for logging concentration and predictive diagnostic data The default Data Channels can be used as they are or they can be changed by the user to fit a specific application They can also be deleted to make room for custom user program
206. spect all pneumatic lines for cracks and abrasion on a regular basis Replace as necessary Refer to the pneumatic diagram in Table 8 8 6 Table 8 8 7 Table 8 8 8 8 11 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 zy ul ELL e n ES z N JE i peg I z 1 Vil ag g s gt Pip 0 Q L Ne NC P L c gt Ew 9155355 a zz a 2 SICU Im i HI HSH SH gt E 2 me NO NOx AUTO 2 FILTER ZEF FITTII FITTIN FITTII REAR PANEL SAMPLE KILLEI TERNAL PUMP PUM 7 Table 8 8 6 Pneumatic Diagram Standard Configuration 8 12 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 an 5 o EN NE
207. ssages are discussed elsewhere in the manual The TEST DIAGNOSTIC and WARNING messages are discussed in Section 9 1 9 2 9 3 DAS and VARIABLES are discussed in Section 5 3 3 and 5 3 9 CALIBRATE is discussed in Section 7 5 31 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 5 3 TEST Commands and Messages Table 5 5 17 RS 232 Test Messages Name Message Description RANGE RANGE xxxxx PPB Analyzer range NOXRANGE RNG xxxxx Indep Range for NO channel NORANGE NO RNG xxxxx PPB Indep Range for NO channel NO2RANGE NO2 RNG xxxxx PPB Indep Range for channel STABILITY NOX STB xxxx xx PPB Std Deviation of last 10 min NO conc values SAMPFLOW SAMP FLW xxx CC M Sample flow rate OZONEFLOW OZONE FL xxxx CC M Ozone flow rate PMT PMT xxxxxx MV PMT output NORMPMT NORM MV Normalized PMT output AUTOZERO AZERO xxxxx MV AutoZero filter value HVPS HVPS xxxxx V High voltage power supply DCPS DCPS xxxxxx MV DC power supply RCELLTEMP RCELL Reaction cell temperature BOXTEMP BOX TEMP xxx C Internal box temperature PMTTEMP PMT temperature IZSTEMP 175 IZS temperature MOLY Molycon temperature RCELLPRESS RCEL xxx x IN HG A Rx ce
208. st be conducted every two weeks Level 2 checks should be conducted in between the Level 1 checks at a frequency desired by the user Span concentrations for both levels should be between 70 and 90 of the measurement range Zero and span data are to be used to 1 Provide data to allow analyzer adjustment for zero and span drift 2 Provide a decision point on when to calibrate the analyzer 3 Provide a decision point on invalidation of monitoring data Items 1 and 2 are described in detail in Subsection 9 1 3 of Section 2 0 9 Q A Handbook Item 3 is described in Subsection 9 1 4 of the same section Refer to the Troubleshooting Section 9 of this manual if the instrument is not within the allowed variations 7 8 10 1 Zero Span Check Procedures The Zero and Span calibration can be checked a variety of different ways They include 1 Manual Zero Span Check Zero and Span can be checked from the front panel keyboard The procedure is in Section 7 1 of this manual 2 Automatic Zero Span Checks After the appropriate setup Z S checks can be performed automatically every night See Table 6 6 2 and Section 7 4 of this manual for setup and operation procedures 3 Zero Span checks via remote contact closure Zero Span checks can be initiated via remote contact closures on the rear panel See Section 7 7 of this manual 4 Zero Span via RS 232 port Z S checks can be controlled via the RS 232 port See Section 5 5 of this manual f
209. stant 9 3 8 5 DCPS mV 2500 200 9 3 5 9 3 4 RCELL TEMP C 50 1 9 3 8 2 BOX TEMP C 8 48 9 3 4 1 PMT TEMP ys 7 1 9 3 8 4 175 TEMP C 50 0 4 9 3 9 MOLY TEMP C 315 5 9 3 4 1 RCEL PRES IN Hg A 4 10 constant 9 3 7 SAMP PRES IN Hg A 25 30 constant 9 3 7 Electric Test amp Optic Test Electric Test PMT Volts mV 2000 500 9 1 3 2 NO Conc PPB 1000 250 9 1 3 2 NO Conc PPB 1000 250 9 1 3 2 Optic Test PMT Volts mV 2000 1000 9 1 3 3 NO 1000 500 9 1 3 3 NO Conc PPB 1000 500 9 1 3 3 table continued 2 12 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 2 1 Final Test and Calibration Values Continued SE Nominal Range Reference Section 1e ___ erm NO Offset 10 to 150 Table 7 7 21 Moly Efficiency 0 96 1 02 7 8 6 5 2 2 6 Stability at Zero Table 9 9 1 Stability at Span 2 ppb 400ppb Table 9 9 1 span gas Measured Flows Sample Flow 500 50 9 3 7 Table 9 9 19 Ozone Flow 60 90 9 3 7 Table 9 9 19 Factory Installed Options Option Installed Power Voltage Frequency Rack Mount w Slides Rack Mount w Ears Only Rack Mount External Pump w Slides pM Rack Mount External Pump w o Slides Stainless Zero Span Valves Internal Zero Span IZS Permeation Tube Output Specification Current Loop TST Chan Non Isolated PROM Serial Date Technician 2
210. struction Manual 02246 Rev G DCN 5247 TABLE 9 9 12 V F BOARD SETTINGS A 9 46 TABLE 9 9 13 POWER SUPPLY MODULE SUBASSEMBLIES ueeessseeenesssssensssnsnnnnnnnnnnnsnsnensnnnnnnnnnenssnennenn 9 50 TABLE 9 9 14 POWER SUPPLY MODULE LAYOUT 9 51 TABLE 9 9 15 ELECTRICAL BLOCK DIAGRAM nnn enses 9 52 TABLE 9 9 16 POWER SUPPLY MODULE LED 2 0 001000000000 9 53 TABLE 9 9 17 OZONE GENERATOR CONTROL CONDITIONS cccccccccscssssssecececeesesesssseseeececceeesenssteaeeeeees 9 55 TABLE 9 9 18 OZONE GENERATOR 50 5 8 tete nnne seen 9 56 TABLE 9 9 19 FLOW PRESSURE SENSOR s0sscsssessosssssssenssessnseccsssvecsensesonsssssatocsasesvenssessvonsssosnasesenas 9 59 TABLE 9 9 20 NOx SENSOR MODULE a e 9 60 TABLE 9 9 21 NOx SENSOR MODULE eese eene E ARE E TETEA 9 61 TABLE 9 9 22 PMT COOLER 81 5 4 sodes atta dana doa oae So ees A 9 63 TABLE 9 9 23 HIGH VOLTAGE POWER SUPPLY 2 2 000 020000000000000101000000000000000100000 0 9 65 TABLE 10 1 TELEDYNE API M200A SPARE PARTS 10 1 TABLE 10 2 TELEDYNE API MODEL 200A 37 MM FILTER EXPENDABLES KIT een 10 5 TABLE 10 3 TELEDYNE
211. t prior to performing a calibration NOTE This Data Channel collects data based on an event a calibration rather than a timer This Data Channel will store data from the last 200 calibrations This does not represent any specific length of time since it is dependent on how often calibrations are performed As with all Data Channels a time and date stamp is recorded for every data point logged The attributes of the data collecting channels can be changed and new data collectors can be defined A comprehensive guide to programming the DAS interface is available separately from Teledyne API order DAS Manual p n 02837 Table 5 5 7 is an example of changing a DAS channel attribute 5 15 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 7 DAS Data Channel Editing Step Action Comment 1 Press SETUP DAS EDIT Enter DAS menu to edit Data Channels 2 Press PREV NEXT Select Data Channel to edit 3 Press EDIT Enter the Edit menu for the selected Data Channel 4 Press SET gt 5 times Scroll through Data Channel properties until RS 232 REPORT OFF is displayed 5 Press EDIT Edit selected setup property 6 Toggle OFF to ON Change RS 232 REPORT property gh Press ENTR Accepts change 8 Press EXIT 4 times Exits back to sample menu 5 3 4 Range Menu The instrument operates on any full scale range from 50 to 20 000
212. t terms should be checked after each calibration The values for these terms contain valuable information about the internal health of the analyzer The range of acceptable values and their meanings is given in Section 7 10 To compute the NO and NO concentrations the formula for a straight line is used Where y the NO or NO concentration m the slope x the conditioned PMT tube output normalized PMT voltage b the offset y mx b In comparison with analog analyzers the slope term is equivalent to the span pot and the b term is equivalent to the zero pot Again like an analog analyzer there is only a limited range of adjustment allowed for either term and there are consequences of having the values near the high or low limits of their respective ranges The x term is the conditioned PMT signal PMT signal is adjusted for the AutoZero background range temperature and pressure The offset b term is the total background light with the AutoZero term subtracted out The AutoZero term measures detector dark current amplifier noise and ozone generator background Therefore in the case of the NO channel the b term should be very close to zero In the NO channel the b term is composed mostly of the molybdenum converter background After every zero or span calibration it is very important to check the QUALITY of the calibration The calibration of the M200A involves balancing several sections of electronics and software
213. te only if Dynamic Calibration is enabled 7 11 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 8 EPA Protocol Calibration Ifthe M200A is to be used for EPA compliance monitoring it must be calibrated in accordance with the instructions in this section In order to insure that high quality accurate measurements are obtained at all times the M200A must be calibrated prior to use A quality assurance program centered on this aspect and including attention to the built in warning features of the M200A periodic inspection regular zero span checks and routine maintenance is paramount to achieving this In order to have a better understanding of the factors involved in assuring continuous and reliable information from the 200 it is strongly recommended that Publication No PB 273 518 Quality Assurance Handbook for Air Pollution Measurement Systems abbreviated Q A Handbook be purchased from the NTIS phone 703 487 4650 Special attention should be paid to Section 2 3 which deals with chemiluminescent based NO analyzers and upon which most of this section is based Specific regulations regarding the use and operation of ambient oxides of nitrogen analyzers can be found in 40 CFR 50 and 40 CFR 58 Both publications are available from the U S Government Printing Office phone 202 783 3238 7 8 1 Calibration of Equipment In general calibration is the process o
214. the sample cal and zero span valves to allow zero gas to come in through the zero gas inlet port in the rear panel 2 Wait 10 min Wait for reading to stabilize at zero value 3 Press ZERO If you change your mind after pressing ZERO you can still press EXIT here without zeroing the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations forcing the reading to zero 5 Press EXIT M200A returns to sample mode Immediately after calibration readings do not go into the DAS averages Refer to Table 7 7 4 to enter expected NO and NO values Table 7 7 7 Manual Span Calibration Procedure Z S Valves Step Number Action Comment 1 Press CALS The M200A enters the calibrate mode from sample mode This operates the sample cal and zero span valves to allow span gas to come in through the cal gas inlet port in the rear panel or optional permeation tube 2 Wait 10 min Wait for reading to stabilize at span value 3 Press SPAN If you change your mind after pressing SPAN you can still press EXIT here without spanning the instrument 4 Press ENTR Pressing ENTR actually changes the calculation equations 5 Press EXIT M200A returns to sampling Immediately after calibration data is not added to the DAS averages 7 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 7 3 Manual Zero Span Check with IZ
215. the Ready to Send RTS signal must be at logic high 5V to 15V before the modem will transmit The Teledyne API analyzer sets pin 8 RTS to 10 volts to enable modem transmission Once the physical connection has been correctly established it is necessary to establish the correct software settings in the modem If the RS 232 bit field 64 in the VARS menu has been set the M200A will transmit a modem setup string when the instrument is powered up The contents of the string are set for a US Robotics Sportster modem We strongly recommend using this model of modem to avoid modem connection problems 9 38 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 To troubleshoot modem connection first disconnect the RS 232 cable from the Analyzer and verify use a DVM that you are getting a signal on Pin 2 of the RS232 port on the Analyzer The signal will be between 5V and 15V with respect to signal ground pin 5 If not there is a problem with the CPU board or the cable This is the transmit TD signal out of the Analyzer This should then be connected to TD input on the modem normally Pin 2 You may need to switch the DTE DCE switch Second Go to the cable connected to the modem terminal and verify use a DVM that you are getting a 5 V to 15 V signal on Pin 3 of the cable This pin should be connected to Pin 3 of the Teledyne API Analyzer Third for modems heck
216. ther an existing GPT calibration system will meet required conditions for a specific calibration For calibrators that have known pre set flow rates use equations 7 5 and 7 6 of steps 7 and 8 below to verify the required conditions If the calibrator does not meet specifications follow the complete procedure to determine what flow modifications must be made 7 16 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 1 Select NO standard gas that has a nominal concentration in the range of 50 to 100 ppm Determine the exact concentration NO stp by referencing against an NIST SRM as discussed in Section 2 0 7 Q A Handbook 2 Determine the volume cm of the calibrator reaction chamber If the actual volume is not known estimate the volume by measuring the approximate dimensions of the chamber and using an appropriate formula 3 Determine the required minimum total flow output Fr using Equation 7 1 Fr analyzer flow demand x 110 100 Equation 7 1 If more than one analyzer is to be calibrated at the same time multiply Fr by the number of analyzers 4 Calculate the NO concentration NO our needed to approximate 90 of the URL of the NO analyzer to be calibrated using Equation 7 2 NO our URL of analyzer ppm x 90 100 Equation 7 2 Calculate the NO flow required to generate the NO concentration NO our using
217. ting recommendations during calibration If desired attach the analog output connections to a strip chart recorder and or datalogger Refer to Table 9 9 12 for the jumper settings for the desired analog output voltage range Factory default setting is 0 5 VDC Connect the power cord to the correct voltage line then turn to Section 2 3 Initial Operation 2 1 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 WARNING Analyzer Exhaust Scrubber Pump Pack Danger Analyzer exhaust contains ozone Ozone scrubber must always be present between analyzer exhaust and pump Vent pump exhaust to well ventilated area at atmosphere pressure FIRE or EXPLOSION HAZARD Do not use charcoal treated with halogen compounds use only Teledyne API P N 00596 charcoal Wait at least 5 minutes after turning off pump before removing ozone scrubber WARNING WARNING Lethal voltages present inside case Do not operate with cover off during normal operation Before operation check for correct input voltage and frequency Do not operate without proper chassis grounding Do not defeat the ground wire on power plug Turn off analyzer power before disconnecting electrical subassemblies 2 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247
218. to achieve an optimum balance of accuracy noise linearity and dynamic range See Section 7 10 for the calibration quality check procedure 5 13 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 2 2 6 Automatic Converter Efficiency Compensation The M200A can automatically compensate the NO and NO readings for the molybdenum converter efficiency There are 2 ways to enter the converter efficiency into the instrument The first is to just type in the converter efficiency using the CAL CONC MOLY SET menu second method is to have the M200A compute the efficiency using the CAL CONC MOLY CAL menu See the Calibration Section 7 8 6 Molybdenum Converter Efficiency for details To disable the compensation press CAL CONC MOLY SET and enter 1 0000 as the efficiency Factory default is 1 0000 5 3 Set Up Mode 5 3 1 Configuration Information CFG This menu item will tell if the installed software has factory special features or other non standard features If you call Teledyne API service you may be asked for information from this menu 5 3 2 Automatic Calibration AutoCal The AutoCal feature allows the M200A to automatically operate the Zero Span Valve or IZS option to periodically check its calibration Information on setting up AutoCal is in Section 6 4 5 3 3 Data Acquisition System DAS The M200A contains a flexible and powerful built in data acqui
219. to bias the input to a datalogger to offset small external ground loop voltages that are sometimes present in monitoring systems The offset is set in the V F calibration menu Press SETUP MORE DIAG scroll to A D CALIBRATION then press ENTR Select CFG SET OFFSET then enter the desired offset and press ENTR Press EXIT to return to the SAMPLE mode 5 19 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 5 3 5 Password Enable If password protection is enabled a password is required to access calibration or setup menus In the VARS menu a password is always required To enable passwords press SETUP PASS ON A list of passwords is in Table 5 5 8 Table 5 5 8 Calibrate Setup Passwords Password Usage Password Calibration Password Use to get into CAL menus 512 101 Setup Password Use to get into SETUP menus 818 101 5 3 6 Time of Day Clock The instrument has an internal time of day clock The time of day can be set by pressing SETUP CLOCK TIME and entering the time in 24hr format In a similar manner the date can be entered by pressing SETUP CLOCK DATE and entering the date in a dd mmm yy format If you are having trouble with the clock running slow or fast the speed of the clock can be adjusted by selecting the CLOCK_ADJ variable in the SETUP MORE VARS menu The units of CLOCK_ADJ are seconds per day The M200A software and hardware has been
220. to the ozone generator AUTO_ZERO_VALVE Switches the AutoZero valve Use this bit to test the valve function PREAMP RANGE HI Switches the preamp 01105 hardware range Standard ranges are 2000 and 20 000 ppb Logic high 20 000 ppb logic low 2000 ppb M200A will ST_RCEL_PRESS ST_ZERO CAL reset range to correct value based on user set range value Status Bit Reaction Cell Pressure alarm Logic High pressure out of acceptable range Logic Low pressure inside acceptable range Status Bit Zero Calibration mode Logic High M200A in Zero cal mode Logic Low Not in Zero cal mode Status Bit Flow alarm Logic High Sample Ozone flow out of spec Logic Low Flows within spec ST_FLOW_ALARM ST_TEMP_ALARM ST_DIAG_MODE table continued Status Bit Temperature alarm Logic High Rxcell Moly IZS Box temps out of spec Logic Low Temps within spec Status Bit In Diagnostic mode Logic High M200A in Diagnostic mode 17 ST SPAN CAL YES Status Bit Span Calibration mode Logic High M200A in Span cal mode Logic Low Not in Span cal mode Logic Low Not in Diag mode 9 14 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 4 Diagnostic Mode Signal Continued 21 5 YES Status Bit Power OK Logic High Instrument power is on Logic Low Instrument power is off ST_SYSTEM_OK Status Bit S
221. ton to appear Make sure the instrument is receiving correct concentration span gas Make sure the expected span concentration is entered Check for dirty reaction cell Do the factory calibration procedure located in Section 9 1 6 OZONE GEN OFF Ozone Generator is off See Table 9 9 17for conditions AZERO WRN XXX X MV The AutoZero circuit compensates for detector dark current and background light Certain electrical faults cause high readings to be added to the filter First the cause of the high ZutoZero reading should be found and repaired then wait 15 minutes for the AutoZero filter to clear itself out A D NOT INSTALLED V F 00514 board has failed The V F board did not respond to commands from the CPU This probably means 1 board not seated in socket 2 defective board 3 defective back plane connector HVPS WARNING High Voltage Power Supply voltage out of limits Limits are 400 900 VDC DCPS WARNING DC Power Supply voltage out of limits Limits are 2500 500 mV 9 10 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 9 1 3 Fault Diagnosis Using DIAGNOSTIC Mode Diagnostic mode can be looked at as a tool kit of diagnostics to help troubleshoot the instrument To enter DIAG mode press SETUP MORE DIAG The diagnostic modes are summarized in Table 9 9 3 To access these functions press SETUP MORE DIAG then pr
222. torange ON or OFF Temp Pres compensation ON Converter Eff Acceptable values of 0 96 to 1 02 Under the designation the Analyzer may be operated with or without the following options DEN NER DD gt 29 Rack mount with slides Rack mount without slides ears only Rack mount for external pump w o tray Stainless steel zero span valves Internal zero span NO permeation tube uncertified 0 4ppm 0 7 Ipm NO permeation tube certified 0 4ppm 0 7 Ipm NO permeation tube certified 0 8ppm 0 7 Ipm NO permeation tube uncertified 0 8ppm 0 7 Ipm 4 20mA isolated outputs Status outputs RS 232 output Internal pump or external pump 1 micron sample filter 3 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 3 3 Warranty ADVANCED POLLUTION INSTRUMENTATION DIVISION T API 020240 wen 4473 Prior to shipment T API equipment is thoroughly inspected and tested Should equipment failure occur T API assures its customers that prompt service and support will be available COVERAGE After the warranty period and throughout the equipment lifetime T API stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry All maintenance and the first level of field troubleshooting is to be performed by the customer NON API MANUFACTURED EQUIP
223. tration of NO gas in the NO and NOx channels and reports a NO concentration of zero As long as CAL ON NO2 is enabled the instrument will never report any NO during span calibration This feature should be enabled only when a calibration is desired otherwise leave it disabled so that NO concentrations are reported correctly See Table 7 7 9 to enable this feature NOTE Note that this method of calibration is NOT approved by the USEPA Permeation tubes are known to change as temperatures are cycled and as they age Also this calibration relies on the moly converter to be working properly Converter efficiency can be compensated by enabling the Converter Efficiency option It is recommended that if CAL ON NO2 is used the instrument calibration be checked frequently by independent means to assure accurate data 7 9 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 7 7 9 Enabling CAL ON NO2 Step Number Action Comment 1 Press SETUP Causes the M200A go to the VARS Variables menu MORE VARS 2 Enter the VARS Password value is 8 18 password then ENTR 3 Scroll the VARS By pressing NEXT or PREV menu to select the CAL ON NO2 variable 4 Press EDIT Once you have entered EDIT set the value to ON 5 Press ENTR ENTR will enable the CAL ON NO2 feature 6 Press EXIT Each EXIT press returns the M200A to the next higher m
224. truction Manual 02246 Rev G DCN 5247 9 1 Operation Verification M200A Diagnostic Techniques 9 1 1 Fault Diagnosis with TEST Variables Table 9 9 1 indicates possible fault conditions that could cause the TEST functions to be outside the acceptable range 9 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 9 9 1 Test Functions Test Function Factory Se t Up Comment RANGE 500PPB This is the Range of the instrument In standard configuration all 3 outputs have the same range Independent range option allows different ranges for each output When enabled there will be 3 range values displayed Auto range option allows 2 different ranges for all outputs and will automatically switch to the other range dynamically as concentration values require The TEST values will show the range the instrument is currently operating in and will dynamically display the alternate range as the range changes occur STABIL Check value Final Test V Table 2 2 6 in alues The instrument stability is the Std Deviation of the last 10 min of NO conc data It is computed for the NO channel only The noise value only becomes meaningful if sampling a constant concentration for more than 20 minutes The noise value should be compared to the value observed in the factory check out Faults that cause high noise values are Gas leaks Li
225. ts this difference is calculated by the M200A s internal computer software It is extremely unlikely that the NO concentration will be in error Therefore this procedure is a confirmation that the NO subtraction algorithm in the computer is operating correctly NOTE During this procedure do not make any adjustments to the instrument 1 Generate concentration near 90 ofthe URL Dilution air O generator air flows should be the same as used in the calculation of specified conditions of the dynamic parameter according to Section 7 8 4 Sample this NO concentration until the NO and NO responses stabilize Record the NO and NO concentrations 2 Turn on and adjust the O generator in the calibrator to produce sufficient to decrease the NO concentration to about 10 of full scale This will be equivalent to 80 of the URL of the NO channel After the analyzer responses stabilize record the resultant NO and NO concentrations MOLY CONVERTER EFFICIENCY IF THE NO READING SHOULD DROP TO LESS THAN 96 OF ITS STARTING VALUE DURING THIS STEP IT INDICATES THE MOLY CONVERTER IS IN NEED OF TROUBLESHOOTING OR REPLACEMENT SEE SECTION 7 8 6 FOR FURTHER DETAILS While maintaining all other conditions adjust ozone generator to obtain several other concentrations of NO evenly spaced between the 80 URL point and the zero point Record the NO NO and NO concentrations for each additional point
226. ts are listed in Table 5 5 10 5 22 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 Table 5 5 10 Status Output Pin Assignments Output Pin Definition Condition 1 1 2 ZERO CAL CLOSED IN ZERO CAL 2 3 4 SPAN CAL CLOSED IN SPAN CAL 3 5 6 FLOW ALARM CLOSED IF FLOW WARNING 4 7 8 TEMP ALARM CLOSED IF ANY TEMP WARNING 5 9 10 DIAG MODE CLOSED IN DIAG MODE 6 11 12 POWER OK CLOSED IF SYSTEM POWER OK 7 13 14 SPARE 8 15 16 SPARE 9 17 18 SPARE 10 19 20 AUTORANGE HI CLOSED IF IN HIGH RANGE 11 21 22 SYSTEM OK CLOSED IF NO FAULTS PRESENT 12 23 24 RX CELL PRESS CLOSED IF ABS PRES gt 15 HG The Status Board schematic can be found in the Appendix 5 5 RS 232 Interface The RS 232 communications protocol allows the instrument to be connected to a wide variety of computer based equipment The interface provides two basic functions in the M200A 1 First is comprehensive command interface for operating and diagnosing the analyzer in interactive fashion This mode is for use by a human operator issuing commands to the instrument 2 Second is the equivalent command interface described above but with the interface set up to be operated by a computer program rather than interactive commands 3 The interface can also provide an audit trail of analyzer events In this function the port sends out messages about instrume
227. verall operation of this board is quite complex To fully check it out in all of its operational modes is not possible in the field Therefore a few simple tests are described here that test one analog input channel the 4 analog output channels one digital input and one digital output 1 V F board analog input test Each analog channel is routed through a programmable 16 channel multiplexer Chances are that if one channel works they all work A Turn on instrument B Press TEST key on front panel keyboard until DCPS test is displayed The value displayed should read 2500 200 mV If the M200A passes this test it has successfully digitized a 2500 mV composite voltage output from the Power Supply Module The signal should also be quiet 25 mV 2 Analog output channel test In the DIAGNOSTIC menu on the front panel there is a test that outputs a step voltage to the 4 analog outputs This test is useful for calibrating chart recorders and dataloggers attached to the M200A The test can also be useful in diagnosing faults in the V F board A Turn on the instrument B Enter the SETUP MORE DIAG ENTR menu 3 Select ANALOG OUTPUT test This causes the 200 to output 5 step voltage pattern to the 4 analog outputs on the rear panel The status of the test is shown on the front panel display The scrolling can be stopped at any voltage by pressing the key below the changing percentage display The values are 0 20 40 6
228. y For more information about OT operation see Section 9 1 3 3 2 6 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 p When the instrument is warmed up re check the TEST functions against Table 2 2 6 All of the readings should compare closely with those in the Table If they do not see Section 9 1 1 The next task is to calibrate the analyzer There are several ways to do a calibration they are summarized in Table 7 7 1 For a preliminary checkout we recommend calibration with zero air and span gas coming in through the sample port The procedure is Step 1 Enter the expected NO and NO span gas concentrations l Press This key sequence causes the M200A to prompt for the CAL CONC NOx expected NOx concentration Enter the NOx span concentration value by pressing the key under each digit until the expected value is set 2 Press ENTR ENTR stores the expected NOx span value This value will be used in the internal formulas to compute subsequent NOx concentration values 3 Press In the same CAL CONC sub menu press the NO button and CAL CONC NO enter the expected NO span value then ENTR As before this value will be used in the internal formulas to compute the subsequent NO concentration values 4 Press EXIT EXIT Returns instrument to SAMPLE mode 5 Press Ifnecessary you may want to change ranges Normally the SETUP RNGE instrument is
229. y year Replace if seal is co I LIII dll at 8 2 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 2 Replacing the Sample Particulate Filter The particulate filter should be inspected often for signs of plugging or contamination It is also common for dirt particles to absorb NO thus causing those readings to be low To check and change the filter 1 Fold down the 200 front panel 2 Locate the filter on the left side of the analyzer front panel See Table 8 8 3 for an exploded view of the filter assembly 3 Visually inspect the filter through the glass window 4 If the filter appears dirty unscrew the hold down ring remove the teflon o ring and then the filter Replace the filter being careful that the element is fully seated in the bottom of the holder Replace the teflon o ring then screw on the hold down ring and hand tighten 8 3 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 SS HOLD DOWN RING 5 GLASS WINDO O RING O RING WITH CUT OUTS y DI FILTER ELEMEN FILTER BODY wa 3 Table 8 8 3 Replacing the Particulate Filter 8 4 PRINTED DOCUMENTS ARE UNCONTROLLED Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247 8 3 8 4 Replacing the Ozone Scrubber Charcoal The Ozone scrubber consists of a char
230. ystem OK Logic High No instrument warnings present Logic Low 1 or more alarms present 23 ST_HIGH_RANGE Status Bit Autorange High Range Logic High M200A in high range of autorange mode Logic Low M200A in low range of autorange mode 24 PMT_SIGNAL Current PMT voltage Same as PMT voltage in TEST menu Bi polar typically in 0 5000 mV range A SAMPLE PRESs 2 6 5 O constant value of 5000 mV indicates offscale Sample pressure in mV Typical sea level value 4300 mV for 29 9 Hg A Reaction Cell temperature Typically 3500 mV for 50 C Box Temperature Typically 1800 mV for 25 C IZS permeation tube oven temp Typically 3500 mV for 50 C PMT cold block temperature Typically 3600 mV for 10 C DC power supply composite voltage output Typically 2500 mV RCELL PRESS N Reaction Cell Pressure in mV Typically 1270 mV for 5 Hg A at sea level Is an absolute pressure so higher values means higher absolute pressures OZONE FLOW Ozone flowmeter voltage Typically 2000 mV at 80 cc min Molybdenum Converter temp Typically 3150 mV at 315 programming voltage Output of HVPS is 1000x value present 700 mV 700 VDC output 9 15 PRINTED DOCUMENTS ARE UNCONTROLLED RCELL_TEMP BOX TEMP IZS TEMP PMT TEMP DCPS_VOLTAGE CONV_TEMP HVPS_VOLTAGE table continued Teledyne API Model 200A NOx Analyzer Instruction Manual 02246 Rev G DCN 5247

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