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Teledyne 200AH User's Manual

1. 294 N 11 i Lu T Li u Ld Q r 5 E 4 lo 2 Pi A Ld f N IL T Figure 9 11 PMT Cooler Subsystem 9 60 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 voltage inputs The first is 15 VDC 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 5 6 7 1 Turn off the instrument 2 Remove the cover and disconnect the 2 connectors at the front of the NO Sensor Module 3 4 Remove the HVPS PMT assembly from the cold block inside the sensor Un plug the PMT Remove the end cap from the sensor tube Re connect the 7 pin connector to the Senso
2. u MOMO 111 7 5 U Y Je Ij iar i 2 C GL d n a 5 er X 111 gt LJ N Ld jm JHUUDUUDUUUU io ATS o ri SID F E Bir H J n O du TYN Hg 1 Ke med eu Bs ES ayvog INV 4 n J3NVd INOMJ Figure 2 6 Assembly Layout 2 13 7 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 N j Q Figure 2 7 Assembly Layout O Sensor Option 2 14 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 2 1 Final Test and Calibration Values TEST Values Nominal Range Reference Section NOX STB o pm
3. 6 2 6 2 1 Autocal Setup Zero Span 6 3 OXYGEN SENSOR OPTIONS alieni 6 4 6 4 ISOLATED 4 20 MA CURRENT LOOP OPTION 555555 6 5 6 5 MOLYBDENUM CONVERTER OPTION 6 5 6 6 EXTERNAL DESICCANT CANISTER OPTION seele 6 5 6 7 ALTERNATE BYPASS FLOW ORIFICE OPTION ii 6 5 6 8 M501 EXTERNAL CONVERTER OPTION aaa 6 5 7 CALIBRATION AND ZERO SPAN CHECKS 7 1 7 1 MANUAL NOx ZERO SPAN CHECK OR CAL WITH ZERO SPAN GAS IN THE SAMPLE PORT 7 3 7 2 MANUAL O2 ZERO SPAN CHECK OR CAL WITH ZERO SPAN GAS IN THE SAMPLE PORT 7 6 7 3 MANUAL ZERO SPAN CHECK WITH ZERO SPAN VALVES 7 7 7 4 DYNAMIC ZERO SPAN CALIBRATION USING AUTOCAL ii 7 9 7 5 USE OF ZERO SPAN VALVES WITH REMOTE CONTACT CLOSURE 7 10 7 6 NO ONLY MODE CALIBRATION icit 7 11 7 7 NOx ONLY MODE CALIBRATION BR 7 11 7 8 CALIBRATION REQUIREMENTS FOR AUTORANGE OR REMOTE 7 11 7 9 CALIBRATION REQUIREMENTS FOR INDEPENDENT
4. Figure 9 10 NOx Sensor Module 9 57 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 8 NO Sensor Module Figure 9 9 and Figure 9 10 show the assembly of the NOx 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 Because of its high sensitivity to light it is not possible to test the detector outside of the instrument in the field The best way to determine if the 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 Temperature The reaction cell temperature is controlled by the CPU It operates by reading a thermistor amplifier on the Status Temp board The CPU controls the temperature 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 VAC comes out of the PSM to a connector near the underside of the reaction cell A warning message may be present during initial warm up due to the temperature being below the 50 C setpoint 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 har
5. FIGURE 9 7 OZONE GENERATOR SUBSYSTEM a FIGURE 9 8 FLOW PRESSURE SENSOR ai een een FIGURE 9 9 NOx SENSOR MODULE 6 FIGURE 9 10 NOx SENSOR MODULE FIGURE 9 11 PMT COOLER SUBSYSTEM FIGURE 9 12 HIGH VOLTAGE POWER SUPPLY vii Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 LIST OF TABLES TABLE 2 1 FINAL TEST AND CALIBRATION VALUES 11142 0 2 15 TABLE 4 1 SAMPLING MODES OF THE 200 4 1 TABLE 4 2 FRONT PANEL STATUS LED S 2 iia 4 8 TABLE 4 3 OZONE GENERATOR START UP TIMING 4 11 TABLE 5 1 M200AH SAMPLE MENU STRUCTURE 5 6 TABLE 5 2 200 SETUP MENU 5 7 TABLE 5 3 200 SETUP MENU 5 9 5 42 SETUP MENU 5 10 TABLE
6. tia 4 5 4 2 3 Pnelimalie Sensor Board main 4 6 4 2 4 Computer Hardware and Software 4 6 4 2 5 VIF A ra 4 7 22 6 FION IVS abre Ss 4 7 4 2 7 Power Supply MO es a a e 4 8 4 2 8 Pump Valves Pneumatic System 4 8 4 2 9 Ozone Getlelalol uidere oi ea ia 4 11 4 2 10 NO NO Converter 4 11 5 SOFTWARE FEATURES rai 5 1 5 1 INDEX TO FRONT PANEL MENUS iaia 5 1 sc Sample ManU 5 6 5 1 2 Set Up a LALA 5 7 me SAMPIEMODE Z y edad enano ecco dicat eee cd de aa eh a a AAA 5 11 32 1 Test PUMCHOMS var aa E Sa ba Na 5 11 5 2 2 CAL CALS CALZ Calibration Functions 5 15 5 9 SET UP MODE esse 5 17 5 3 1 Configuration Information CFG 5 17 5 3 2 Automatic Calibration AutoCal 5 17 5 3 3 Data Acquisition System DAS us ee erlegen 5 18 iii Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 3 4 Range Most adas dele 5 20 Daa oP ASSWONG END A alal 5 23 6 3 6 TIMO
7. 0 5 38 TABLE 5 19 RS 232 DIAGNOSTIC COMMAND SUMMARY a a ns 5 39 TABLE 6 1 ZERO SPAN VALVE OPERATION a 6 2 TABLE 6 2 SETUP AUTOMATIC ZERO SPAN CHECKING OR CALIBRATION 6 3 TABLE 6 3 ACTION OF MODE FIELD IN AUTOCAL a 6 4 TABLE 7 1 TYPES OF ZERO SPAN CHECK AND CALIBRATION 7 2 TABLE 7 2 MANUAL ZERO CALIBRATION PROCEDURE ZERO GAS THRU SAMPLE PORT 7 3 TABLE 7 3 ENTER EXPECTED SPAN GAS CONCENTRATIONS PROCEDURE 7 4 TABLE 7 4 MANUAL SPAN CALIBRATION PROCEDURE SPAN GAS THRU SAMPLE PORT 7 5 TABLE 7 5 MANUAL ZERO CALIBRATION PROCEDURE ZERO GAS THRU SAMPLE PORT 7 6 TABLE 7 6 MANUAL O gt SPAN CALIBRATION PROCEDURE SPAN GAS THRU SAMPLE PORT 7 7 TABLE 7 7 MANUAL ZERO CHECK PROCEDURE Z S VALVES 7 8 TABLE 7 8 MANUAL SPAN CHECK PROCEDURE Z S VALVES 7 9 TABLE 7 9 Z S VALVE MODES WITH REMOTE CONTACT CLOSURE 7 10 TABLE 7 10 CALIBRATION REQUIREMENTS FOR AUTORANGE OR REMOTE RANGE 7 12 TABLE 7 11 CALIBRATION QUALITY CHECK 7 13 TABLE 7 12 C
8. Figure 8 6 Pneumatic Diagram with Zero Span Valves 8 11 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Figure 8 7 Pneumatic Diagram with Oxygen Sensor S E ci 21 8 98 gt o 32 D N t Di uen T 9a gt m u d O gt x I mig Ox 4 2 e 1 E Z TZ 8 12 VALVE STATES MALLY FITTING Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 8 6 Leak Check Procedure If a leak checker is not available it is possible to leak check the instrument using the M200AH s 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 Z S valve 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 Turn off the shutoff valve and monitor the cell pressure The pressure should not increase
9. 9 10 9 1 4 M200AH Internal VariableSs ii 9 17 9 1 5 Test Channel Analog Output cie tite 9 19 9 1 6 Factory Calibration Procedure vicio 9 20 9 2 PERFORMANCE PROBLEMS 9 24 9 2 1 AC O amu 9 24 92 2 PIOW idis aa DEED ERE 9 25 9 2 3 No Response to Sample Gas ai 9 25 9 2 4 Negative QUIDUL Mm 9 26 9 2 5 Excessive Noise A d qui 9 26 9 2 6 Unstable Span Suae ten eie dun pedea ee nie 9 27 9 2 Fo Unstable nenne Re 9 28 9 2 8 Inability to Span eie A A M E Ree 9 28 9 2 9 Inability to Zero PTS 9 28 9 2 10 Non Linear Response uuu uuu un a 9 29 921 SIOW Response Are ia cue tt 9 30 9 2 12 Analog Output Doesn t Agree With Display Concentration 9 30 9 3 SUBSYSTEM TROUBLESHOOTING AND ADJUSTMENTS emen 9 31 9 3 1 Computer Display Keyboard ce ansehe 9 31 9 3 2 RS 232 COMMUNIEAlIONS a 711 9 34 9 3 3 Voltage Frequency V F 9 37 9 3 4 Status Temp BOSE asi RE 9 43 9 3 55 PoWeOI SUDDIV MOQUE m Su ana nenne 9 45 9 3 6 OZONE GEN OK alo cananea 9 49 9 3 7 Flow Pressure Sensor een ren 9 53 9 3 8 NOx Sensor Module nn 9 58 DORE Zoo
10. g 1 B pc snlvl 000000000 ne I 555 5 5 17 Figure 2 1 Removal of Shipping Screws amp Check for Correct Power 2 3 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 IER TE pa 7 Ju pm Lu alle DLL JO J H 11111 E lt a lt a 25 226 111111 5 lt 2 gt TC TC Figure 2 2 Rear Panel 2 4 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 me D I fn ES d E Y Ww LJ LJ z E E 5 1 5 2 de NMENT Br uz Figure 2 3 Rear Panel with O Option 2
11. 4 E xs 1 I E LS O Ti fe HOSE uu 4 111 1 m 1 51 mx TM ER pa 2 4 274 m d er m o Zu he Li Li sey 2 lt Se ou 1 era 9 42 n ne 5 n Li S LAS LL E OC 7 mi ro EEE O Jul 2 O uJ ur 2 2211 E gt gt Da Q lt Figure 5 3 Setup Menu Tree Units with O Sensor 5 4 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 nm LJ Lu Lid DE LUI Br E t I Di SIE CER E FE LJ E LL pu Lu Y ij xL L LJ u are 21 2 l I I 4 L L 19 O 2 ve NE 199 Lu a5 lA 1 1 rt TE ee 4 res 22 I E o S a 57 2 gt 2588 EN N i LES per Ze 1 gt er 3 La perl Sin OFA doz ul zz E UN 5 E 1 Se 1 2 277 Lu Figure 5 4 Setup Menu Tree Units with O Sensor 5 5 HI m TE 8 TEST 0 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 1 1 Sample Menu Table 5 1 M200AH Sample Menu Structure Level 1 Level2
12. FIGURE 5 4 SETUP MENU TREE UNITS WITH SENSOR FIGURE 8 1 REPLACING THE PARTICULATE FILTER FIGURE 8 2 CONVERTER ASSEMBLY FIGURE 8 3 REACTION CELL lt 2 FIGURE 8 4 SAMPLE BYPASS FLOW CONTROL ASSEMBLY FIGURE 8 5 PNEUMATIC DIAGRAM FIGURE 8 6 PNEUMATIC DIAGRAM WITH ZERO SPAN VALVES FIGURE 8 7 PNEUMATIC DIAGRAM WITH OXYGEN FIGURE 9 1 SPAN CALIBRATION 0 020 FIGURE 9 2 CPU BOARD JUMPER SETTINGS aiii te FIGURE 9 3 RS 232 PIN ASSIGNMENTS FIGURE 9 4 V F BOARD JUMPER SETTINGS a FIGURE 9 5 POWER SUPPLY MODULE LAYOUT a FIGURE 9 6 ELECTRICAL BLOCK 12 n
13. readings for the converter efficiency There are 2 ways to enter the converter efficiency into the instrument If the instrument is in single or independent range modes there is just one converter efficiency parameter If the converter efficiency is determined by some outside method the efficiency coefficient can be keyed in as a decimal fraction through the front panel The path is CAL CONC CONV SET The second method is to have the M200AH compute the efficiency using the CAL CONC CON CAL menu See the Calibration Section 7 11 Converter Efficiency for details If AutoRange is enabled there will be 2 converter efficiencies one for low range and one for high range The procedure is identical for each range To access the converter efficiency menu the path is CAL LOW CONC CONV for LOW range and CAL HIGH CONC CONV for HIGH range If NOx or NO ONLY mode is set the converter efficiency is disabled with the value set to 1 0000 To disable the compensation press CAL CONV 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 M200AH to automatically operate the Zero Span Valve option This option allows a
14. TELEDYNE ADVANCED POLLUTION INSTRUMENTATION A Teledyne Technologies Company INSTRUCTION MANUAL MODEL 200AH NITROGEN OXIDES ANALYZER TELEDYNE INSTRUMENTS ADVANCED POLLUTION INSTRUMENTATION DIVISION T API 9480 CARROLL PARK DRIVE SAN DIEGO CA 92121 5201 TOLL FREE 800 324 5190 FAX 858 657 9816 TEL 858 657 9800 E MAIL api sales teledyne com WEB SITE www teledyne api com 01620 REV G2 DCN 5333 Copyright 2006 T API Inc 03 March 2009 PRINT DATE 03 March 2009 THIS PAGE IS INTENTIONALLY LEFT BLANK Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 gt CAUT
15. Z TO SAMPLE ALV ASSEMI 2 5 ETAIL A FILTER ORING SAMPLE FLOW ORIFICE D JEWEL DOWN ire DRIN D Bm ID Figure 8 4 Sample Bypass Flow Control Assembly 8 8 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 8 5 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 suitable clean zero air Also inspect all pneumatic lines for cracks and abrasion on a regular basis Replace as necessary Refer to the pneumatic diagram in Figure 8 5 Figure 8 6 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 LE Li 4 1 B c i om 3 221 O E 1 e Lr ul ju 7 gt ak E 5 E gt t 4 y a a E I 1
16. a DR do x Z 5 gt yf TCS 1 ati WEI uoa r 4 gt 1 gt E z 4 HHH ERE _ E al i reat 5 LU lt I ud aw 1 a ce 5 u 1 gt I iL Ez x 1 Figure 8 5 Pneumatic Diagram 8 10 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 22 N 4 ei A gt gt 3 2 4 um Eu i 3 gt Hu y Sal o Y s e 5 21 a E 5 gt gt 2 2 144 ew DOS 3 GE 3 ua 2 zo Dom xp WW x HSH Bee i EEE Ls i 2 z r 21 Ng E 2 1 1 1 1 iL EEE E lt ua uw en 5 amp A E E 5 E 5 lt pa 5 Li gt Lu
17. 4 Remove the valve assembly and bottom bracket and re attach those two parts to the replacement converter 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 7 Turn the power back on The insulation can 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 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 CO NA 2 TER CAR Sa 2 Figure 8 2 Converter Assembly 8 5 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 8 4 Cleaning the Reaction Cell The reaction cell should be cleaned whenever troubleshooting points to it as the cause of the trouble A dirty cell and window will cause excessive noise unstable span or zero 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 22 Qu 292 8 Turn off the instrument power and vacuum pump Loosen the hold down screws for pneumatic sensor assembly amp move the assembly to the side Disconnect the exhaust fitting and inlet fittings See Figure 8 3 Loosen four
18. 2 There is ared LED associated with each of the 4 valve positions when the LED is ON the valve is OPEN Each LED corresponds top to bottom to each valve 3 Correct operation of each valve can be checked as follows A In sample mode the bottom sample valve is open and the LED is ON Check flow through the sample inlet port on the rear panel B In CALZ mode the second from the bottom zero gas valve is open and the LED is ON Check flow through the zero gas port on the rear panel C In CALS LOW SPAN mode the third from the bottom span gas valve is open and the corresponding LED is ON Check flow through the low span gas port on the rear panel D In CALS HI SPAN mode the top gas valve is open and the top LED is ON Check flow through the high span gas port on the rear panel If the LED s fail to light check the iSBX board on the CPU board and cable for 0 5 VDC logic signals If the LED s light but the valves do not operate check the 12 VDC cable from the power supply module The valve may be operating but may be plugged If that is suspected dis assemble the manifold and inspect for signs of plugging While the valves can be removed from the manifold it is NOT recommended that the valves be dis assembled as there are several small spring loaded parts inside 9 63 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 It is also possible to manually toggle each of the valves in the DIAGNOST
19. 3 Press EXIT to return to the SAMPLE mode Select the OZONE FL TEST function Plumb a calibrated flow measuring device upstream of the ozone generator see Figure 9 7 Use the external device reading to make small adjustments in R3 to dial in correct flow readout on the front panel 9 53 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 To adjust the SAMPLE PRESSURE 1 Goto DIAG mode by pressing SETUP MORE DIAG then select SIGNAL I O and press ENTR Select SAMPLE_PRESS by using NEXT PREV keys 2 Adjust R1 to read 4100 mV This is the coarse adjustment 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 Goto DIAG mode by pressing SETUP MORE DIAG then select SIGNAL I O and press ENTR Select RCELL_PRESS by using the NEXT PREV keys 2 Disconnect the vacuum pump at the Sample Exhaust port on the instrument rear panel 3 Press EXIT to return to the SAMPLE mode Select RCEL 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 alt
20. 4 REMOTE RANGE HI NO Shows state of status input bit to switch the remote range control from low to high range 5 SPAN VALVE YES Switches the Span valve Use this bit to test the valve function CAL VALVE YES Switches the Cal valve Use this bit to test the valve function T VALVE YES Switches the NO NO valve Use this bit to test the valve function RCELL HEATER YES Shows the status of the reaction cell heater This has the same function as the LED in the PSM BLOCK HEATER YES Shows the status of the sample flow orifice block heater This has the same function as the LED in the PSM 10 ELEC TEST YES Turns on electric test bit in preamp Should be used for troubleshooting Preamp logic lines We recommend you use the ET button in the DIAG menu to operate electric test 9 12 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 4 Diagnostic Mode Signal I O Continued 11 OPTIC_TEST YES Turns on optic test bit in preamp Should be used for troubleshooting Preamp logic lines We recommend you use the OT button in the DIAG menu to operate optic test 12 BROWNOUT_RESET 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 CONV_HEATER NO Shows the status of the converter heater This has the same function as the LED in the PSM O3GEN_STATUS YES Switches power to the ozone generator
21. Day Clip iaa 5 23 53 7 Diagnostic Modos PD eva ue 5 23 5 3 8 Communications Menu 5 24 5 3 9 Variables Menu VARS i 5 24 5 4 M200AH OPERATING MODES rss 5 25 5 4 1 NO NOYNO 2 Switching 2 08844 30000 5 25 142 NO COMM ModE nr ea OM 5 26 5 4 3 NO Only MOOG dd tddi 5 26 50 4 20 MA CURRENT LOOP o in 5 27 5 6 STATUS OUTPUT esses pide quate 5 27 2392 INTERFACE SSS ASRS SRSA 5 28 5 7 1 Setting up the R9 232 Inter a66 and o paper a cx RE 5 28 5 7 2 Command UM 5 31 5 7 3 TEST Commands and 5 35 5 7 4 WARNING Commands and 5 36 5 7 5 CALIBRATION Commands and 5 37 5 7 6 DIAGNOSTIC Commands and 5 38 5 7 7 DAS Commands and Messages i eot eiie tn ex ue 5 39 5 7 8 VARIABLES Commands and 5 41 6 OPTIONAL HARDWARE AND 6 1 6 1 RACK MOUNT OPTIONS Zee dci leo 6 1 6 2 ZERO SPAN VALVES OPTION
22. 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 3 in 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 reading is about 5 in Hg A at sea level for the standard pump Sample Pressure SAMP The sample pressure is measured by one of the pressure sensors on the sensor board The sample pressure typically runs slightly below atmospheric pressure Sample pressure will change with varying atmospheric pressure like the weather because the sensor is an absolute pressure sensor It will also change with altitude NOx NO Slope and Offset Values NOx SLOPE NOx OFFS NO SLOPE NO OFFS SLOPE O2 OFFS The slope m and intercept b coefficients of straight line equations y mx b determine the calibration of the M200AH The slope parameter m can be thought of as a gain term which determines the steepness of the calibration curve The offset b parameter compensates for differences in the background signal of the NO and NOx channels This is primarily due to the background of the converter These parameters contain valuable information about the quality
23. 12000 V F analog output voltage setting 5V Full Scale Default Setting 4 20 mA To convert from 4 20 mA to 0 20 mA output refer to Status Temp Schematic in the Appendix and the procedure in Section 9 3 3 1 9 3 5 Power Supply Module The Power Supply Module consists of several subassemblies described in Table 9 10 9 45 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 9 Power Supply Module Subassemblies Linear Power Supply The linear power supply board takes multiple voltage inputs from the power Board transformer and produces 5 15 15 12 VDC outputs The outputs are routed to two external connectors P2 and P3 See Figure 9 5 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 The switching power supply supplies 15 VDC at 4 A to the PMT cooler Supply control on the Sensor Module and input power for the ozone generator 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
24. Level3 Level 4 Level5 Description Reference Section TEST Test functions 5 2 1 TST gt Table 9 1 CAL Zero Span calibration w gas through sample 5 2 2 1 7 1 port CALZ Zero calibration w zero gas from zero valve 5 2 2 3 option 7 1 7 2 CALS Span calibration w span gas from low or high 5 2 2 4 concentration span valve option 7 1 7 2 LOW Only present if AutoRange is selected Used 5 3 4 2 7 8 HIGH to select which range instrument will be calibrated in Selects which slopes offsets expected span values etc will be updated and displayed 1 1 ZERO Press ZERO then ENTR will zero analyzer 5 2 2 3 7 1 7 2 5 Press SPAN then ENTR will span analyzer CONC Expected NO NO span concentrations and Table 7 3 Conv efficiency setup NOX Enter expected NO span concentration 5 2 2 CONC Table 7 3 NO Enter expected NO span concentration 5 2 2 CONC Table 7 3 CONV Sub menu for converter efficiency setup and 5 2 2 7 verification 7 11 NO2 Expected NO concentration for converter 5 227 efficiency calculation 7 11 Automatic converter efficiency calibration S227 and entry 7 11 LA 1 1 Set the converter efficiency manually 5 2 2 7 11 SETUP The SETUP Menu See next table The SETUP Menu See next table Table Table 5 2 2 5 6 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 1 2 Set Up Menu Table 5 2 M200AH Setup Menu
25. Scroll the TEST function menu until the NOx OFFS is displayed Scroll the TEST function menu until the NO OFFS is displayed For Units with O Option Scroll the TEST function menu until the NOx SLOPE is displayed Scroll the TEST function menu until the NO SLOPE is displayed Scroll the TEST function menu until the SLOPE is displayed Scroll the TEST function menu until the NOx OFFS is displayed Scroll the TEST function menu until the NO OFFS is displayed Scroll the TEST function menu until the O OFFS is displayed The SLOPE value for NOx should be 1 0 0 3 If the value is not in this range check Section 7 1 or 9 If the SLOPE value is in the acceptable range the instrument will perform optimally The SLOPE value for NO should be 1 0 0 3 If the value is not in this range check Section 7 1 or 9 If the SLOPE is in the acceptable range the instrument will perform optimally NOTE The NO and NO slopes should be equal within 0 3 The SLOPE value for O should be 1 0 0 3 If the value is not in this range check Section 7 1 or 9 If the SLOPE value is in the acceptable range the instrument will perform optimally The M200AH will display the OFFSET parameter for the NOx equation This number should be near zero A value of 0 0 50 indicates calibration in the optimal range If the OFFSET value is outside this range check Section 7 1 or 9 1 for procedures to correct the OFFSET v
26. Since NO is unaffected by the converter both channels can be accurately calibrated It is also important that there be some oxygen in the span gas Inaccurate calibration of the NOx channel can result from calibration gasses containing no oxygen All calibration gasses must have a dew point of lt 20 C NOTE The quality of calibration can be no better than the accuracy and quality of the calibration gasses used See Section 7 10 Calibration Quality for recommendations on calibration gasses and Section 9 2 10 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 Before Calibration 1 Use the SETUP RNGE menu to set the range the instrument will be operated in 2 If you are using any of the following features they must be set up before calibration A Autoranging or Remote Ranging See Section 7 8 B Independent Ranges See Section 7 9 C NO only or NOx only mode Section 7 6 and 7 7 Normal calibration assumes that these features are already set up Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 7 1 Types of Zero Span Check and Calibration 7 1 Manual Z S Check or Calibration This calibration method uses calibration gas coming with span gas in the sample port in through the sample port Zero Span valves do not operate Manual Z S Check or Calibration How to operate Zero Span Valves
27. 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 programmed 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 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 The function CONC PNUMTC CALDAT Table 5 5 of each of the default Data Channels is described below Samples NOx NO and NOx NO and O if the instrument is equipped with the Oxygen option 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 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 pu
28. 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 TELEDYNE API SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR RELATED TO THIS AGREEMENT OF TELEDYNE API S PERFORMANCE HEREUNDER WHETHER FOR BREACH OF WARRANTY OR OTHERWISE 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 2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 4 THE M200AH NOX ANALYZER 4 1 Principle of Operation 4 1 1 NOx Measurement The Teledyne API Model 200AH Analyzer is designed to measure the concentration of nitric oxide NO total oxides of nitrogen NO and by calculation nitrogen dioxide NO Note the calculation of is not available in instruments equipped with the Oxygen measurement option With the proper setup it can operate in any of three sampling modes Table 4 1 Sampling Modes of the M200AH NO NOx Converter is switched measures NO NO and switching mode Converter is switched out of sample stream Nitric Oxide is only gas measured onverter is switched into the sample stream NO is only gas NO only mode T P ys measured Regardless of which samplin
29. removing NO scrubber 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 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 u gt TI IIT 1 d 1 1 aie 1 11111 1 pO Vee Lil 7 OO
30. 2 If the port is inactive for 1 hour it will automatically LOGOUT 3 Repeat attempts at logging on with incorrect passwords will cause subsequent logins to be disabled for 1 hour 4 If not logged on the only command that is active is the If this command is issued the M200AH will respond with MUST LOG ON 5 The following messages will be given at logon LOG ON SUCCESSFUL Correct password given LOG ON FAILED Password not given or incorrect LOG OFF SUCCESSFUL Logged off The RS 232 LOGON feature must be enabled from the front panel by setting bit 4 from Table 5 9 Once the feature is enabled to logon type LOGON 940331 5 29 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 940331 which sets the password to the factory default Protocol of Port Communication The RS 232 interface has two protocols of communication because if the port is attached to a computer it needs to have different characteristics than if used interactively Consequently there are two primary styles of operation terminal mode and computer mode 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 key
31. 5 5 DAS DATA CHANNEL 5 19 TABLE 5 6 CALIBRATE SETUP 5 1 nnns 5 23 TABLE 5 7 M200AH OPERATING 8 0 0 nnn 5 25 TABLE 5 8 STATUS OUTPUT ASSIGNMENTS 00 5 27 TABLE 5 9 RS 232 PORT SETUP FRONT PANEL rr 5 29 TABLE 5 10 RS 232 SWITCHING FROM TERMINAL MODE TO COMPUTER MODE 5 30 TABLE 5 11 RS 232 TERMINAL MODE EDITING KEYS 5 31 TABLE 5 12 RS 232 COMMAND SUMMARY a a 5 32 TABLE 5 13 RS 232 COMMAND SUMMARY a a 5 33 TABLE 5 14 RS 232 INTERFACE COMMAND TYPES 5 34 TABLE 5 15 RS 232 TEST MESSAGES anne a ana 5 35 TABLE 5 16 RS 232 WARNING MESSAGES uuuennsunennnunsnnnunnnnnunnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 5 36 TABLE 5 17 RS 232 CALIBRATION MESSAGES a 5 37 TABLE 5 18 RS 232 CALIBRATION COMMANDS
32. 6 different types of messages output by the M200AH They are grouped below by type in Table 5 15 Table 5 19 The meanings of the various messages are discussed elsewhere in the manual The TEST DIAGNOSTIC and WARNING messages are discussed in Sections 9 1 1 9 1 2 9 1 3 DAS and VARIABLES are discussed in Sections 5 3 3 and 5 3 9 CALIBRATE is discussed in Section 7 5 34 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 7 3 TEST Commands and Messages Table 5 15 RS 232 Test Messages Displayed when independent range is enabled Displayed when single or AutoRange is enabled Depends on which units are currently selected 5 35 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 The T command lists TEST messages Examples of the T command are T LIST Lists test messages currently enabled with T SET T LIST ALL Lists all test messages CONVTEMP Prints the temperature of the converter T LIST NOX Prints NO concentration message T NOX Prints concentration message 5 7 4 WARNING Commands and Messages Table 5 16 RS 232 Warning Messages WSYSRES WSMPFLOW WOZONEFLOW WROELLE WRCELLT Ders BLOCK TEMP WARNING WADINS 5 36 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Whenever a warning message is reported on the analyzer display if the RS 232 interface is in the normal mode i e
33. 62 DAYS each time sequence is run DELTATI Number of hours to shift start time 5 3 2 6 2 ME each time sequence is run DURATIO Number of minutes to spend at each 5 3 2 6 2 N step in sequence CALIBRA ON compute new slope and or offset 5 3 2 6 2 TE OFF do a span zero check RANGE If AutoRange is ON select which 5 3 2 6 2 TO CAL range to calibrate LO or HI 5 8 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 3 M200AH Setup Menu DAS VIEW PREV NEXT Reference Select which DAS data collector to view 5 3 3 Scroll through data collectors CONC PNUMTC CAL DAT UP10 DOWN DOWNIO Move UP 10 averages in the DAS data buffer Examine the DAS data buffer move down and display next average Move DOWN 10 averages in the DAS data buffer Sets the output range Type of range output 3 outputs are on the same single range 5 3 4 5 3 4 5 3 4 1 3 outputs AutoRange between 2 5 3 4 2 different ranges Same as AutoRange except external 5 3 4 2 contacts set range Each range can be set independently 5 3 4 3 Allows a offset bias voltage to all 5 3 6 analog output channels Selects PPM units Selects milligrams per cubic meter units Sets the range of the instrument if in SINGLE range mode 5 3 4 6 5 3 4 6 5 3 4 6 5 3 4 1 Sets the low and high ranges for AUTORANGE or Remote Range NO NOX Sets each INDEPENDENT range NO2 Sets dilution fa
34. 700 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 To accurately measure converter efficiency there should be oxygen present in the NO calibration gas NOTE For the converter to operate properly there should be a few percent oxygen present in the sample stream Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 THIS PAGE IS INTENTIONALLY LEFT BLANK 4 12 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 5 1 SOFTWARE FEATURES The M200AH 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 Figure 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 Figure 5 2 Index to Front Panel Menus The next several pages contain two different styles of indexes that will allow you to navigate the M200AH software menus The first two pages show a tree menu structure to let you see at a glance where each software feature is located in the menu The second menu 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 Teledyne API Model 200AH NOx Analyzer Inst
35. ASSEMBLY 06070 02047G M200AH SPL xls DCN 5333 03 03 09 Part Number 000940100 000940500 000940600 004020200 011310000 011930000 014610000 016330000 016810400 018300000 022300000 0000017 OR0000001 PS0000002 PS0000010 RL0000015 VA0000024 01713A M200AH Level 1 Spares Kit w Mini HiCon xls DCN 5333 LEVEL 1 SPARES KIT WITH MINI HICON CONVERTER M200AH CD PMT R928 NOX M200A M200E KB RELAY DPDT KB VALVE MANIFOLD 3 WAY CLIPPARD 03 03 09 LEVEL 1 SPARES KIT WITH MOLYBDENUM CONVERTER M200AH Part Number 000940100 000940500 000940600 0A IPCA SENSOR BOARD NOX w FM4 amp SW8 E 01131000A DRYER 011930000 CD PMT R928 NOX M200A M200E KB 014610000 022220000 PCA PWR SUPPLY SWITCH BD CE SUBASSY 1 E SUBASSY HE0000017 12W 120V 50W 240V CE AP KB KB x El i A CIN C POWER c JI INCI LUI 1 OR0000001 ORING 2 006VT PS0000002 HIGH VOLTAGE POWER SUPPLY KB PUO00001 1 REBUILD KIT THOMAS 607 RL0000015 RELAY DPDT KB VA0000024 VALVE MANIFOLD 3 WAY CLIPPARD 0171301A M200AH Level 1 Spares Kit w Moly xls DCN 5333 03 03 09 EXPENDABLES KIT M200AH Part Number 002270100 AKIT GASKETS WINDOW 12 009690300 AKIT FLTR ELEMENT 47MM 30 FL0000001 FL0000003 HW0000020 OR0000001 01714A M200AH EXP Kit xls DCN 5333 03 03 09 THIS PAGE IS INTENTIONALLY LEFT BLANK
36. Can be used to force the ozone generator to turn on ST_LOW_SPAN_CAL Status Bit state of the low concentration span valve Logic high valve open to admin span gas 1 1 1 Logic low valve closed 1 1 ST_RCELL_PRESS Status Bit Reaction Cell Pressure alarm Logic high pressure out of acceptable range Logic low pressure inside acceptable range PREAMP_RANGE_HI YES Switches the preamp hardware range Standard ranges are 500 and 5 000 ppm Logic high 5 000 ppm logic low 500 ppm M200AH will reset range to correct value based on user set range value E E YE E 1 5 ST ZERO CAL S Status Bit Zero Calibration mode Logic high M200AH in Zero cal mode Logic low Not in Zero cal mode 2 ST SPAN CAL YES Status Bit Span Calibration mode Logic high M200AH in Span cal mode Logic low 2 Not in Span cal mode table continued 18 AUTOZERO VALVE YES Switches the AutoZero valve Use this bit to test the valve function i o 3 4 5 6 7 9 0 1 9 13 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 4 Diagnostic Mode Signal I O Continued ST_FLOW_ALARM ST_TEMP_ALARM ST_DIAG_MODE y ST POWER OK ST SYSTEM OK ST HIGH RANGE PMT SIGNAL SAMPLE PRES er RCELL_TEMP BOX TEMP TEMP BLOCK TEMP table continued Status Bit Flow alarm Logic High 2 Sample Ozone flow out of spec Logic Low Flows within spec Status Bit Temperat
37. Connector P2 programs the power transformers to take 115 220 230 or 240 VAC inputs Power Transformers There are potentially 2 input power transformers in the PSM The multitap transformer T1 is in every M200AH and supplies input power for the Linear Power Supply board described above A second transformer T2 is added if 220 230 or 240 VAC input is required This transformer steps down the 220 230 240 VAC to 115 VAC 50Hz for heaters and other components Input power selection is done via a programming connector P2 which provides the proper connections for either foreign or domestic power Circuit The front panel contains a combination circuit breaker input power switch Breaker Power It is connected to the PSM through J6 on the Switch Board If an overload is Switch detected the switch goes to the OFF position Switching the power back on resets the breaker also 9 46 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Li a oni LL vig 1 ER r i Sa s m 4 Feier a OO em gt G 22 2 Te lt LI x LO IERI Nc e 3 E e ed OBS D p gt o m Ni WEL amp c un amp c e E ES CO LA D Ob Lr t4 L O amp E asa H o5 T Or E a AT N ETT 14415 HINO AVANT EJ TI E N
38. Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Figure 4 3 External Pump Pack 4 10 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 4 2 9 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 switching power supply that drives a high voltage transformer and silent discharge tube The generator s dry air supply uses a membrane drier to supply air with a dew point of 0 or less The exhaust side of the membrane is connected to the vacuum manifold at the rear of the instrument A complete description and service requirements for this module can be found in Section 9 3 6 Normal room air contains enough water vapor to damage the generator and components downstream therefore the ozone GENERATOR MAY NOT TURN ON IMMEDIATELY AFTER POWER UP The delay is built into the instrument to allow the dryer to start operating and purge the system with dry air Table 4 3 details the conditions for turning on the ozone generator Table 4 3 Ozone Generator Start up Timing Time Since Last Power up Ozone Gen State Program Action lt 1 hour ON at power up Gen ON immediately after power up OFF at power up Wait 30 min then turn gen ON 4 2 10 NO NO Converter The converter is a length of 1 8 tubing heated to
39. Schedule Filter for PermaPure Drier Drierite Canister Replace when Drierite changes Section 9 3 6 from blue to red Reaction cell window Clean annually or as necessary Section 9 3 8 Figure 8 3 Ozone Flow Check TEST function every Figure 9 7 Section 9 3 7 year Sample Flow Check TEST function every Figure 8 4 Figure 8 5 year Section 9 3 7 Converter Check efficiency every 6 Figure 8 2 Section 7 10 months Pneumatic Lines Examine every 12 months Figure 8 5 Figure 8 6 clean if necessary Factory Calibration Calibrate each year or after Sections 9 1 6 repairs Leak Check Check every year or after other Sections 8 6 9 3 maintenance Rx Cell O rings Replace every 12 months Figure 8 3 O rings Replace every 12 months Figure 9 9 Figure 9 10 8 1 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 thus causing the reading to be low A discoloration of the filter membrane indicates that the filter is dirty and should be changed To change the filter 1 Locate the sample filter on the outside rear panel 2 Unscrew the hold down ring remove the Teflon o ring and then the filter disc See Figure 8 1 for an exploded view of the filter assembly 3 Replace the filter being careful that the element is fully seated
40. Scroll the TEST function menu until the NOx SLOPE is displayed Scroll the TEST function menu until the NOx OFFSET is displayed Scroll the TEST function menu until the NO SLOPE is displayed Scroll the TEST function menu until the NO OFFSET is displayed The SLOPE value for NOx should be 1 0 0 3 If the value is not in this range check Section 9 1 6 If the SLOPE value is in the acceptable range the instrument will perform optimally This number should be near zero A value of 0 0 50 indicates calibration in the optimal range This number already has the AutoZero value subtracted out and is mainly the background signal due to the molybdenum converter If the OFFSET value is outside this range check Section 9 1 6 The SLOPE value for NO should be 1 0 0 3 If the SLOPE is in the acceptable range the instrument will perform optimally If the value is not in this range check Section 9 1 6 NOTE The NO and NOx slopes should be equal within 0 1 The instrument will now display the NO OFFSET value It should also have a value near zero 0 0 50 This number already has the AutoZero reading subtracted out and should be near zero If the OFFSET value is outside this range check Section 9 1 6 The converter efficiency factor compensates readings for converter efficiency The component of the NOx reading is also compensated when instrument is in switching mode An efficiency factor of 1 0 disables effici
41. ValV8S ae Qa a aaa aqa aqu payka 9 63 9 3 10 Pneumatic SNS 9 64 Teledyne API Model 200 NOx Analyzer Instruction Manual 06492 Rev G2 APPENDIX A ELECTRICAL SCHEMATICS APPENDIX B SPARE PARTS AND EXPENDABLES vi Teledyne API Model 200 NOx Analyzer Instruction Manual 06492 Rev G2 LIST OF FIGURES FIGURE 2 1 REMOVAL OF SHIPPING SCREWS CHECK FOR CORRECT POWER FIGURE 2 27 REAR PANEL tiv Dco 7 SU aude DO ode lodos FIGURE 2 3 REAR PANEL WITH O gt OPTION FIGURE 2 4 INLET AND EXHAUST VENTING RECOMMENDATIONS FIGURE 2 5 FRONT PANEL ea brad gata p ee FIGURE 2 6 ASSEMBLY LAYOUT A occa FIGURE 2 7 ASSEMBLY LAYOUT Op SENSOR OPTION FIGURE 4 1 PARAMAGNETIC SENSOR a na FIGURE 4 2 BLOCK DIAGRAM FIGURE 4 3 EXTERNAL PUMP PACK dani ibi FIGURE 5 1 SAMPLE MENU TREE a oda RR Xd Ra ER edad FIGURE 5 2 SETUP MENU TREE FIGURE 5 3 SETUP MENU TREE UNITS WITH O gt SENSOR
42. and validity of the calibration For example the NO and NOx slope values should not differ by more than 0 1 from each other Larger values indicate a flow imbalance such as a leak or problems with the converter Refer to Section 7 10 Calibration Quality for details on how to use these values Time TIME This is the output of the internal time of day clock 5 14 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 2 2 CAL CALS CALZ Calibration Functions The calibration and zero span checking of the M200AH analyzer is treated in detail in Section 7 Table 7 1 summarizes types of calibration 5 2 2 1 CAL CALS CALZ The CAL CALS and CALZ 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 Zero Span valve option the CALZ and CALS buttons operate the Zero Span valves The setup of this option is covered in Section 6 2 and operation is explained in Section 7 5 2 2 2 Gas To Cal For units equipped with the Oxygen Sensor Option depressing the CAL key will cause the instrument to prompt for which gas sensor to calibrate NOx or O After the desired gas is selected the instrument will display ZERO SPAN and CONC keys as described below 5 2 2 3 Zero Pressing the ZERO key along with ENTR will cause the instrument to adjust the OFFSET va
43. attributes can be edited in a similar fashion 5 7 8 VARIABLES Commands and Messages The M200AH operational modes are listed above To list the analyzer s current mode type V MODE Lists M200AH current operational mode See Table 5 7 for list of operational modes and meanings Model M200AH Internal variables The M200AH has a number of internal setup variables Essentially all of these are set at time of manufacture and should not need to be changed in the field A list of user accessible 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 quite long and will not be shown here The general format of the output is name value warning lo warning hi data lo data hi 5 41 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 lower limit of allowable values data hi upper limit of allowable values 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 on a variable is V LI
44. have been made record the changes because all settings should be checked after the PROM is changed See Figure 9 2 for location of prom on CPU card 1 Turn the machine off NOTE The PROM is static sensitive be sure that you are properly grounded before handling any of the electronics 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 3 Locate the CPU board which is attached to the larger V F board Remove the CPU V F board assy laying it down on an insulating surface such that the board edge pins on the PCB are on the left The PROM chip will be at the top center See Figure 9 2 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 re connect the RS 232 and front panel display cables and then re attach the assembly to the motherboard Turn the M200AH 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 Check and re enter if necessary a
45. in the bottom of the holder Replace the Teflon o ring then screw on the hold down ring and hand tighten Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 WINDOW O RING WITH CUT T T FILTER il FILTER BODY Figure 8 1 Replacing the Particulate Filter 8 3 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 8 3 Replacing the Converter The Converter is located in the center of the instrument refer to Figure 2 6 for its location The heater thermocouple ozone scrubber and converter are designed to be replaced as a single unit 1 Turn off the power to the M200AH and allow the converter to cool 2 Remove the entire assembly from the chassis CAUTION The converter operates at about 700 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 A Remove the pneumatic fittings from the valves B Remove the Molex connectors to the valve bracket 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 3 Disconnect the gas fittings and power cable grounding from the can
46. key immediately below it By redefining the keys dynamically it is possible to simplify the instrument electronics and user interface 4 2 6 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 2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 4 2 Front Panel Status LED s Off NOT monitoring DAS disabled On Monitoring Monitoring normally taking DAS data Blinking Monitoring DAS in HOLDOFF mode Yellow Off AutoCal disabled On AutoCal enabled Blinking Calibrating Red Off No warnings exist Blinking Warnings exist This occurs during Calibration DAS holdoff after power up and in Diagnostic mode 4 2 6 3 Power Switch The power switch has two functions The rocker switch controls overall power to the instrument in addition it includes a circuit breaker If attempts to power up the M200AH result in a circuit breaker trip the switch automatically returns to the OFF position and the instrument will not power up 4 2 7 Power Supply Module The Power supply module supplies AC and DC power to the rest of the instrument It consists of a 4 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 to operate the Rx cell heater converter heaters and the ozone ge
47. more than PSI in 5 minutes If you have a leak checker 1 Turn off instrument power and pump power 2 Disconnect pump at rear panel Cap the sample inlet port ozone generator air inlet and zero air inlet if Z S valve option present and connect leak checker to 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 1 Hg in 5 minutes 0 5 PSIG in 5 min If instrument fails pressure test each fitting needs to be leak checked with soap solution 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 soap solution Refer to Figure 8 4 Figure 8 5 for pneumatic diagrams 8 7 Light Leak Check Procedure 1 Scroll the TEST functions to PMT 2 Input zero gas Shine a powerful flashlight or portable incandescent light at the inlet and outlet 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 sensor assembly Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 8 8 Prom Replacement Procedure Preparation If any setup changes such as RANGE AUTOCAL ON OFF etc
48. 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 W 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 command line interface To clear the sample flow warning shown above the command would be W WSMPFLOW 5 7 5 CALIBRATION Commands and Messages Table 5 17 RS 232 Calibration Messages em START ZERO CALIBRATION Beginning zero calibration FINISH ZERO CALIBRATION NO2 xxxxx ppm Finished zero calibration START SPAN CALIBRATION FINISH SPAN CALIBRATION NO2 xxxxx ppm START MULTI POINT CALIBRATION FINISH MULTI POINT CALIBRATION Depends on which units are currently selected 5 37 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Whenever the analyzer starts or finishes a 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 The format of these messages is C DDD HH MM IIII CALIBRATION STATUS MESSAGE An example of an actual sequence of calibration status messages is C DD
49. 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 TELEDYNE API MANUFACTURED EQUIPMENT Equipment provided but not manufactured by Teledyne 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 Teledyne API warrants each Product manufactured by Teledyne API to be free from defects in material and workmanship under normal use and service for a period of one year from the date of delivery All replacement parts and repairs are warranted for 90 days after the purchase If a Product fails to conform to its specifications within the warranty period Teledyne API shall correct such defect by in Teledyne API s discretion repairing or replacing such defective Product or refunding the purchase price of such Product The warranties set forth in this section shall be of no force or effect with respect to any Product i that has been altered or subjected to misuse negligence or accident or 11 that has been used in any manner other than in accordance with the instruction provided by Teledyne API or 111 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
50. reading in Step 3 may be different than 100 mV since the overall calibration affects OPTIC TEST See Section 9 1 6 for factory calibration procedure Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 1 3 4 Ozone Gen Power This diagnostic manually turns the power off and on to the ozone generator When the M200AH 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 1 3 5 Analog Output 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 If the analog outputs are set for 0 5V 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 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 of the analog outputs 9 1 3 6 DAC Calibration The Digital to Analog Converter
51. 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 34 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 A NTS F 1 D TX DATA gt ry Q 9 f SIG GR 090909 7 55 ATIC LOO BAUC AULT BA Be oe ei von ETTABI ITCH SETTABI ON REAR ANEL C ECTO A Figure 9 3 RS 232 Pin Assignments 9 35 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 2 1 RS 232 Port If the RS 232 port is not working check the following Physical Wiring Refer to Figure 9 3 for the wiring diagram of the DB 9 plug on the M200A rear panel There are two features that make connecting the wiring easier First is the red green LED s on the rear panel One device such as the M200AH provides the power to run the red LED the other device will provide the power for the green LED If the wiring is hooked up correctly both LED s will be illuminated 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 The communication protocol for each instrument must match In Figure 9 3 the default RS 232 pa
52. variety of periodic instrument calibrations and calibration checks Information on setting up AutoCal is in Section 6 2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 3 3 Data Acquisition System DAS The M200A contains a flexible and powerful built in data acquisition system DAS that enables the analyzer to store concentration data as well as diagnostic parameters in its battery backed memory This information can be viewed from the front panel or 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 NOx NO concentration or may be diagnostic data such as the sample flow or reaction cell pressure The M200AH comes pre programmed with a set of useful Data Channels for logging concentration and predictive diagnostic data
53. 0 0 02 9 1 1 9 2 5 Table 9 1 550 50 Optional wow 2 9 9 _ mr ww eme ws wmo 4 ww 9 owo 9385 _ m ww mem 935 fe on 189 o ooume mocemew lt se 94 soxe fe se posi Emme O a CONV TEMP C 700 10 Std 9 3 4 1 315 5 Moly SAMP PRES NHEA 25 30 constant 9 3 7 Electric Test amp Optic Test Electric Test OPTIC TEST PMT Volts table continued 2 15 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 2 1 Final Test and Calibration Values Continued Nominal Range Reference Section 02 span cone si NO siepe Tav a m di O2 Offset Conv Efficiency 0 75 1 10 7 11 5 2 2 7 i Table 9 1 NOx Noise at Zero Table 9 1 NOx Noise At Span O2 Noise at Zero 02 Noise At Span Table 9 1 Measured Flows Sample Flow 50 20 9 3 7 Figure 9 8 Bypass Flow cc min 250 Std Figure 8 4 500 Optional Power Voltage Frequency 02 Sensor 0 0 Rack Mount w Slides CP Rack Mount w Ears Only 9 O Rack Mount External Pump w o Slides J C 0 O _ O ee AAA L 1 ppm ppm mV mV ppm ppm Desiccant Canister 03 generator PROM Serial Date Technician Units with O Option Onl
54. 0 ppm by SETUP RNGE SET and key in 100 then press ENTR 4 Input Zero gas into the sample port and Scroll to the TEST function labeled NORM PMT The reading should be near OmV Readings above 50 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 50mV the instrument will not zero or span properly see Sections 9 2 8 9 2 9 5 Allow the instrument to sample zero gas for at least 10 minutes to fill the internal data filters with zero readings The reading is stable when the STABIL TEST function drops to 2 0 or less Then zero the instrument by CAL ZERO ENTR 6 Set the expected span concentration to 80 ppm Enter the expected NOx concentration of 80 ppm by pressing CAL CONC NOX Then press CAL CONC NO to enter the expected NO concentration of 80 ppm Then press EXIT to return to the CAL menu 7 Input 80 ppm of NO span gas in the sample inlet port Scroll to the NORM PMT TEST function 9 Calculate the expected PMT mV reading For ranges up to 500 ppm multiply the expected span value by 8 to get the mV reading For ranges 501 to 5000 ppm multiply the expected span value by 8 to get the mV reading In this example the expected span gas concentration is 80 ppm and therefore the expected voltage is 80 ppm x 8 640 mV As an alternate method the voltage can be determined from the graph in Figure 9 1 On the Y axis find the calibr
55. 06300 Window 665 NM 002 013100 PCA SENSOR BD NOX w FM4 amp SW8 PCA V F CARD W SCHEMATIC B F Activated Charcoal 6 Ibs PCA KEYBD DISPLAY A SERIES ASSY DISPLAY DS25 FOR A SERIES Qly 100 Qty 25 M 1UM 1 AKIT TFE FLTR 47MM FL6 30 PCA STATUS TEMP TYPE K M100AH M200AH _ Drier Assembly Complete with Flow Control ASSY SENSC 200AH Wi ASSY PSM M100A M200A 115V 60HZ l 5 n 7 CD PMT R928 NOX M200A M200E KB Assembly MOLY Thermocouple Type K ASSY FAN A PSM Fan PMT Cooler Thermistor Assembly Cooler ASSY N PARE M200 BS 3l Converter Hicon Type K w o O3 killer w o valves 5 5 Heater MINI HICON OBSOLETE use P N 037400000 03 03 09 SPARE PARTS LIST M200AH 017130000 017130100 017140000 018080000 018300000 021070000 022220000 022300000 02284040 w Moly Conv Long K w o valves w o Killer in cat 024710000 Tubing 024720000 024730000 024740000 024750000 FL0000001 FL0000003 Filter DFU 036 040180 HE0000017 HE0000019 HW0000020 Spring Flow Control HW0000036 3 TIE CABLE 6 090000001 00000002 00000034 00000042 080000044 O Ring Reaction Cell OR0000045 O Ring Sample Filter PS0000002 PU0000005 PU0000006 PU0000011 RL0000007 RL0000015 Solid State Relay 115 Vac SW0000006 VA0000007 VA0000024 VALVE NO NOX USE VALVE
56. 3AO HLIM 3179 440 LNO 39NVIJIAO LINN NIYO S35NYM INdINO SONILLIS HOLIMS Figure 9 4 V F Board Jumper Settings 9 42 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 4 Status Temp Board The Status Temp Board is a multifunction board that OTO TR Converts the resistance readings of the thermistors to a voltage Amplifies and scales 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 Provides circuitry for 4 20 mA outputs 9 3 4 1 Temperature Amplifier Section The 4 thermistor amplifiers that convert resistance into voltage monitor 1 Reaction Cell temperature 2 Heated Orifice block 3 4 Box temperature Spare 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 in the Appendix for details The voltages can also
57. 48 u BLOCK TEMP 50 C 2 Normalized PMT voltage Takes raw PMT voltage and applies temperature and pressure corrections Use NORM PMT when doing the factory calibration procedure A slope of 1 0 can be achieved for high altitude sites and pumps that are significantly down from their maximum vacuum AZERO is the current value of the AutoZero circuit reading The number typically should around zero The value may be temporarily outside this range if the PMT has been recently been exposed to light or the instrument has been turned off for several days If the value stays outside this range check the AutoZero and NO NO valve for a cross port leak Use Diagnostic mode to manually check the AutoZero valve for correct operation This 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 The supply will function over a voltage range of 375 to 1000 VDC A value in the 400 to 600 volt range is common for the M200AH 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 The reaction cell temperature is cont
58. 5 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 2 y lt Figure 2 4 Inlet and Exhaust Venting Recommendations 2 6 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 2 3 Initial Operation 1 Turn on the instrument power 2 The display should immediately light showing the computer s memory configuration then the instrument type M200AH If you are unfamiliar with the M200AH we recommend that you read the overview Section 4 before proceeding A diagram of the software menu trees is in Figure 5 1 and Figure 5 2 3 The M200AH requires about 30 minutes for all internal components to come 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 Many warning conditions are not displayed during this time even though temperatures and other conditions are out of specification All warning messages are enabled after 30 minutes of operation 4 While waiti
59. 6 or check Section 9 2 for other fault diagnosis If difficulties persist contact our service department The toll free 800 telephone number is on the cover page of this manual 9 1 Operation Verification Diagnostic Techniques 9 1 1 Fault Diagnosis with TEST Variables 9 2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 The Table 9 1 indicates possible fault conditions that could cause the TEST functions to be outside the acceptable range Table 9 1 Test Functions RANGE 500 PPM STABIL Check value in Final Test Values Table 2 1 table continued 9e T E lt This is the Range of the instrument In single range mode standard configuration all 3 outputs have the same range If NO range 2 is enabled there will be an indication of the range for this output Auto range option allows 2 different ranges for instrument output and will automatically switch all outputs 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 Independent range option allows different ranges for each output When enabled there will be 3 range values displayed If NO range 2 is enabled there will be an indication of the range for this output making a total of 4 range indications The instrument noise is determined by computing the standa
60. AL is described in Table 6 2 and AUTOCAL Section 7 2 3 Remote operation using the Setup described in Section 6 2 Operation of AUTOCAL RS 232 interface described in Section 7 2 4 Remote operation using Section 7 5 Automatic operation using external contact external contact closures closures Table 7 12 and Section 9 3 4 3 Zero and span gas inlets should supply their respective gases in excess of the demand of the Analyzer Supply and vent lines should be of sufficient length and diameter to prevent back diffusion and pressure effects See Figure 2 4 for fitting location and tubing recommendations Note that Zero Span Valves cannot be included in an instrument that also includes the Oxygen sensor option 6 2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 6 2 1 Autocal Setup Zero Span Valves The Zero Span valves can be set up to operate automatically Table 6 2 in this section describes Autocal setup Table 6 2 Setup Automatic Zero Span Checking or Calibration Press SETUP ACAL This button sequence will cause the AUTOCAL menu to be displayed 2 Press PREV or This selects a SEQUENCE Up to 3 Sequences can be defined A NEXT Sequence is a definition of zero span calibrations along with timing information Select MODE then MODE allows you to select the order of zero low span or high span PREV or NEXT that will be performed MODES are listed in Table 6 3 Use PREV NEXT to scroll the list o
61. Any time the PMT buffer amplifier circuit R19 gain and or the PMT high voltage setting is changed the OT reading will also change The Factory Cal procedure can change both of these values To re 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 100 mV 5 is displayed Press EXIT to return to SAMPLE mode If this procedure does not produce an instrument that will properly span please contact your local distributor or the Teledyne API factory Teledyne API s phone number is on the front page of this manual 9 22 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 4 40 Z NI dd 11925 ppr ANGE RAN 0 ppm I JT 7 LJ I Ppt A VOLTAGE r F A 500 MULTIPLY THE BY MT MILLIVOLT S LIN 2A 1 TO 4 MULTI E ETTIN MILLI INF VATION SING THIS Fl FAC CALIBRATION PROCEDURE Figure 9 1 Span Calibration Voltage 9 23 Tel
62. 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 calibration parameters AVG Type of data AVG average reading INST instantaneous reading NXCNCI 1234 5 PPB Name of the parameter NX NOX NO NO N2 NO2 5 40 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 All of the 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 CONC 120 0 100 0 20 0 The parameters are in the order of NOx NO and 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
63. D HH MM IIII START MULTI POINT CALIBRATION C DDD HH MM IIII FINISH MULTI POINT CALIBRATION There are several methods of both checking the calibration and calibrating the M200AH these are discussed in Section 7 C LIST lists the calibration commands available The C command executes a calibration command which may be one of the following Table 5 18 RS 232 Calibration Commands 5 7 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 ZERO VALVE ON D DDD HH MM IIII ENTER DIAGNOSTIC MODE D DDD HH MM IIII EXIT DIAGNOSTIC MODE 5 38 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 The following is a summary of the Diagnostic commands Table 5 19 RS 232 Diagnostic Command Summary D LIST Prints all I O signal values See Table 9 4 for Sig I O definitions D NAME VALUE Examines or sets I O signal Must issue D ENTER SIG command before using this command D LIST NAMES Prin is command ts names of all diagnostic tests D ENTER SIG Executes SIGNAL I O diagnostic test D ENTER OT Executes Optic Test diagnostic test D ENTER ET Executes Elect Test diagnostic test Use D EXIT to leave these diagnostic modes D EXIT Must use this command to exit SIG ET or OT Diagnostic modes D SYS RESET Resets anal
64. DE CALIBRATE ON CALIBRATE OFF Zero calibrates LO or HI depending on RANGE TO CAL SINGLE or IND ranges ZERO Zero checks LO or HI depending on RANGE TO CAL SINGLE or IND range ZERO LO Zero and low span calibrates LO Zero and low span checks LO SINGLE SINGLE or IND ranges or IND ranges ZERO HI ZERO LO HI Zero cals amp span cals HI SINGLE or IND range with HI span gas Zero cals span cals LO and HI range LO span gas for LO range HI span gas for HI range Zero cals amp span cals in SINGLE or IND range using HI span gas LO span is cal check only Span cals LO range with LO span gas Span cals HI range with HI span gas in AutoRange mode Span cals SINGLE or IND range with HI span gas LO span is cal check only LO HI LO Span cals LO range with LO span gas Span cals SINGLE or IND range with LO span gas Span cals on HI range with HI span gas Span cals SINGLE or IND range with HI span gas Oxygen Sensor Option Zero checks amp span checks on HI SINGLE or IND range with HI span gas Zero checks span checks both ranges LO span gas for LO range HI span gas for HI range Does 3 point check in SINGLE or IND range modes Span checks LO range with LO span gas Span checks HI range with HI span gas Does 2 point check in SINGLE or IND range mode Span checks LO range with LO span gas Span checks SINGLE or IND range with LO span gas Span checks on HI range with HI span gas S
65. Details on using the test channel analog output are in the Troubleshooting Section Table 9 6 Test Channel Readings TEST Channel Minimum Maximum Description PMT DETECTOR 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 reading 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 press
66. EL TEST function for proper vacuum reading Should be 3 10 Hg A 6 Broken flow or pressure sensor 7 Leak check analyzer See Section 8 6 for leak check procedure 9 2 3 No Response to Sample Gas 1 Confirm general operation of analyzer A Check for AC Power Section 9 2 1 B Do flow checks Section 9 2 2 Confirm that sample gas contains NO or 9 25 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 2 Check instrument electronics A Do ELEC TEST procedure in DIAGNOSTIC menu Section 9 1 3 2 B Do OPTIC TEST procedure in the DIAGNOSTIC menu Section 9 1 3 3 If the M200AH 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 3 Check ozone generator subsystem Do diagnostic test of ozone generator subsystem see Section 9 3 6 9 2 4 Negative Output 1 Miss calibration The zero gas that was used to zero the M200AH contained some NO gas that is it had more NO gas than that of the sample air Also doing a zero calibration using sample air 2 Reaction cell contamination If NO NOx OFFSET TEST functions are greater than 50 mV this indicates reaction cell contamination 3 Check for leaks 4 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 Auto
67. IC mode Refer to Section 9 1 3 for information on using the DIAG mode Also refer to Figure 8 4 Figure 8 5 for a pneumatic diagram of the system Check for fitting leaks and crimped tubing 9 3 10 Pneumatic System The pneumatic system is diagrammed in Figure 8 4 Figure 8 5 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 M200AH to greater than 15psi Damage to internal components will occur at higher pressures The root cause of many performance problems is a leak Refer to Section 8 6 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 Common pump problems and causes are 1 Failure of ozone scrubber thus allowing ozone into the pump Ozone is very corrosive and causes failure of the diaphragm Replace catalytic ozone scrubber in the NO2 to NO converter replace charcoal scrubber on pump pack and rebuild the pump 2 Sometimes the felt pads in the charcoal ozone scrubber plug up thus restricting flow and decreasing effective vacuum even if pump is good 3 Failed pump The pump has a finite lifetime There is a re build kit see the spare parts list 9 64 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 APPENDIX A ELECTRICAL SCHEMATICS Table A 1 Elec
68. ION 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 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 THIS PAGE IS INTENTIONALLY LEFT BLANK Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table of Contents SAFETY MESSAGES oa illa LISTO TABLES ea ee VIII 1 HOW TO USE THIS MANUAL a 1 1 2 GEITINGSTARTEB se ne 2 1 2 1 UNPACKING sistas uhakuna ai 2 1 2 2 ELECTRICAL AND PNEUMATIC CONNECTIONS 2 1 2 3 NAO RAT ON 09 02 2 7 3 SPECIFICATIONS WARRANTY 3 1 S SOP ECIPIGATIONG Ars nes i RI 3 1 E 3 2 4 THE 200 NOX ANALYZER 4 1 A T PRNO P E Or OPERATION lella 4 1 Ae NOZMEASUrEMEN lacado 4 1 4 1 2 Oxygen Measurement Option 4 2 4 2 OPERATION SUMMA bi 4 5 4 2 1 NOx Sensor Module Reaction Cell Detector 4 5 4 2 2 Oxygen Sensor Module Option
69. L I O This can be useful for simulating fault conditions in the analyzer to see if external circuitry is working correctly See Table 5 8 for pin assignments 9 44 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 4 4 4 20 mA Current Output There are two types of current loop outputs available for the M200AH non isolated standard equipment and isolated optional These outputs may be used in place of the analog voltage signals that appear at the rear panel connector See Section 9 3 3 1 for setup and calibration procedure Non isolated 4 20 mA or 0 20 mA Output Non isolated 4 20 mA is recommended for applications requiring a current loop and the current loop receiver has an isolated input stage It can also be used when there a potential difference does not exist between the ground connections of the two instruments Recommended load Ry 100Q 600Q Max 6000 V F analog output voltage setting 10 V Full Scale Default Setting 4 20 mA To convert from 4 20 mA to 0 20 mA output refer to Status Temp Schematic 01087 sheet 2 and the procedure in Section 9 3 3 1 Isolated 4 20 mA or 0 20 mA Option This option is recommended where maximum isolation from ground loops is required Specifications include up to 1500 V rms common mode voltage isolation transformer coupled input to output galvanic isolation and 240 Vrms normal mode voltage output protection Recommended load R 2000 10000 Max
70. MT TEMP TEST function Miss calibration Check SLOPES in TEST function 8 Reaction cell pressure too high Check RCEL TEST function 9 2 6 Unstable Span Common causes are 1 gt zu ae 10 11 Leak in pneumatic system Light leak check the sensor module with strong light Check for missing O rings in Sensor Assembly 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 Reaction cell temp not stable observe warning messages or RCELL TEMP in TEST functions Check diagnostic LED in Power Supply Module for normal cycling Large variations in ambient temperature observe warning messages or BOX TEMP in TEST functions Pump not maintaining steady vacuum observe warning messages or RCEL in TEST functions Sample vent line too short allowing room air to mix with span gas should be a minimum of 15 long Calibration gas source unstable 9 27 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 2 7 Unstable Zero Common causes are 1 Leak in pneumatic system 2 Light leak check the sensor module with strong light 3 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 readin
71. ONVERTER EFFICIENCY AUTOMATIC CALCULATION 7 14 TABLE 8 1 PREVENTATIVE MAINTENANCE SCHEDULE ccccooccccnncccnnnccnnnnccnnnnccnnnanononacononananonacinnnanos 8 1 TABEE 9z S TEST FUNGTIONS tacita 9 3 TABLE 9 2 FRONT PANEL WARNING 55 100 9 9 TABLE 9 3 SUMMARY OF DIAGNOSTIC MODES nnne 9 11 Vili Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 TABLE 9 4 DIAGNOSTIC MODE SIGNAL I O a 9 12 TABLE 9 5 MODEL 200AH VARIABLES 9 18 TABLE 9 6 TEST CHANNEL READINGS a ns 9 19 TABLE 9 7 MOTHERBOARD JUMPER SETTINGS a 9 39 TABLE 9 8 V F BOARD SWITCH SETTINGS 9 39 TABLE 9 9 POWER SUPPLY MODULE SUBASSEMBLIES 9 46 TABLE 9 10 POWER SUPPLY MODULE LED nennen 9 49 TABLE 9 11 OZONE GENERATOR CONTROL CONDITIONS 9 50 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 THIS PAGE IS INTENTIONALLY LEFT BLANK Teledyn
72. Option Can be with Z S Valve Option used to check or adjust calibration Dynamic Z S Calibration with Operates Z S valves periodically and adjusts Z S Valves Option calibration Use of Z S Valves with Remote Operates Z S valves with rear panel contact closures Contact Closure Without valves can be used to switch instrument into zero or span cal mode Used for either checking or adjusting zero span NO Only Mode Calibration Covers requirements if calibrating in NO only mode NO Only Mode Calibration Covers requirements if calibrating in NO only mode Calibration Requirements for Covers special requirements if using AutoRange or AutoRange or Remote range Remote Range control Calibration Requirements for Covers special requirements if using Independent Independent Ranges Range Calibration Quality Information on how to determine if the calibration performed will result in optimum instrument performance 7 11 Converter Efficiency Covers methods to automatically compensate for Compensation converter efficiency 7 2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 1 Manual NO 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 coming in the sample port This method is often used when the calibration gas is supplied from the stack sample probe or external tank and valve system This is the calibration method to use if th
73. Ox In single range mode there is one value each for the NO NOx and expected span values The span values are entered by pressing CAL CONC NO or CAL CONC NOX or CAL O2 CONC keys for NOx and span concentrations respectively If AutoRange is enabled there is a different slope and offset for each of the 2 ranges for a total of 4 expected span concentrations Therefore there will be 2 span concentrations for NO and 2 span values for NOx When AutoRange is enabled the path to the expected span concentrations contain an extra step For the LOW concentration range the path is CAL LOW CONC NO for NO and CAL LOW CONC NOX for NOx For the HIGH concentration range the pathways are CAL HIGH CONC NO and CAL HIGH CONC NOx These values must be entered to correctly calibrate the instrument 5 2 2 6 Formula Values The slope and offset terms should be checked after each calibration The values for these terms contain valuable information about internal health of the analyzer The range of acceptable values and their meanings is given in Section 7 10 To compute the NOx and NO or concentrations the formula for a straight line is used Where y the NO or NO or concentration m the slope x the conditioned sensor output 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 limi
74. Ox Zero gas Input NOx Zero gas Allow Zero gas to enter the sample port on the rear of the instrument 2 Press CAL Press CAL NOX The M200AH enters the calibrate mode from sample mode 3 Wait 10 min 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 Press ZERO The ZERO button will be displayed Press ENTR Press ENTR Pressing ENTR actually changes the equations and zeros the instrument ress EXIT and Press EXIT and M200AH returns to the CAL menu Now input NOx Span gas input NOx Span gas switch gas streams to span gas 7 Wait for reading to stabilize at the span value Press SPAN Press SPAN The SPAN button should be displayed If there is no SPAN button check the Troubleshooting Section 9 2 8 for instructions on how to proceed In certain circumstances at low span gas concentrations both the ZERO and SPAN buttons will appear Press ENTR Press ENTR Pressing ENTR actually changes the equations so that the concentration displayed is the same as the expected span concentration you entered above thus spanning the instrument 10 Press EXIT Press EXIT Pressing EXIT returns the instrument to SAMPLE mode 11 Input O Zero gas Allow Zero gas to enter the sample port on the rear of the instrument 12 Press CAL O2 The M200AH enters the calibrate mode from sample mode table continued 2 9 Teledyne API Model 200AH NOx Analyze
75. RANGE 7 12 7 10 CALIBRATION QUALITY see ein bani eb atari dil cute at 7 12 7 11 CONVERTER EFFICIENCY 7 13 7 12 RECOMMENDATIONS FOR CEM APPLICATIONS ass 7 14 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 12 1 Calibration BASS OS cutd A 7 14 7 12 2 ia hahaa e 7 15 7 12 3 Converter UU Re 7 15 8 MAINTENANCE ai 8 1 8 1 MAINTENANCE SCHEDULE u uu td red oa e e a e LE AR LEO C e DO 8 1 8 2 REPLACING THE SAMPLE PARTICULATE FILTER aaa aaa 8 2 8 3 REPLACING THE CONVERTER ns 8 4 8 4 CLEANING THE REACTION CELL ainia 8 6 8 5 PNEUMATIC LINE INSPECTION coito urna rmn crar pua rinite 8 9 8 6 LEAK CHECK PROCEDURE iii ini 8 13 8 7 LIGHT LEAK CHECK PROCEDURE tota REN 8 13 8 8 PROM REPLACEMENT PROCEDURE sica 8 14 9 TROUBLESHOOTING AND ADJUSTMENTS 9 1 9 1 OPERATION VERIFICATION DIAGNOSTIC TECHNIQUES 2 9 2 9 1 1 Fault Diagnosis with TEST Variables siii 9 2 9 1 2 Fault Diagnosis with WARNING 9 6 9 1 3 Fault Diagnosis using DIAGNOSTIC Mode
76. Reference Section CFG is primarily used for showing 5 3 1 special configuration options and factory special software PREV NEXT can be used to scroll 5 3 1 through the configuration list LIST automatically scrolls the list Automatic span check or calibration Select a sequence of pre programmed 5 3 2 calibration commands Scroll backwards Level 1 Level 2 Level 3 Level 4 Description a Sen PREV SEQUENCE NEXT Select a sequence of pre programmed 5 3 2 SEQUENCE calibration commands Scroll forwards MODE Choose from a list of 7 modes plus 5 3 2 disable PREV Scroll back to choose type of 5 3 2 calibration performed Scroll forward to choose type of 72 calibration performed DISABLE Disable selected calibration sequence NEXT ZERO LO Do a zero and low span calibrate 5 3 2 6 2 009 Do a zero and high span calibrate 5 3 2 6 2 table continued 5 7 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 2 M200AH Setup Menu Continued Reference Section LO Do a zero low and high span 5 3 2 6 2 calibrate eee roo sow en span arse 3992 TIMER Enable Disable chosen sequence 5 3 2 6 2 ENABLE START Start date of selected sequence 5 3 2 62 DATE Level 1 Level 2 Level 3 Level 4 Description START Start time of selected sequence 5 3 2 62 TIME DELTA Number of days to shift start time 5 3 2
77. Rev G2 10 V output or non isolated current loop Use for non isolated current loop or 10 V output 5 V output or isolated current loop 1 V output 6 ON tsetori0omvonpa 1 After the switches and 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 Press A D to select the first task which is to calibrate the A D converter B Connect a DVM ground lead to TP3 AGND on the V F board Connect the positive lead to TP9 DACO 9 40 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 C The M200AH will display a voltage near 1 of the voltage range set in the above procedure Adjust R27 until the displayed voltage matches the DVM voltage then press ENTR D The M200AH 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 The next task is to calibrate each of the 4 DAC output channels The NEXT PREV buttons allows selection of any of the 4 D A channels DACO the NOx channel is displayed first E The SET button has 2 functions first to select the output mode voltage or current Press VOLT and CURR depending on the type of output desired Remember the VOLT or CURR setting must match the switch and jumper
78. ST name 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 60 The CONFIG command lists the software configuration For example V CONFIG list software configuration The format of this listing is shown in the example below CONFIG 0 Revision H 7 CONFIG 1 NO Analyzer CONFIG 2 SBC40 CPU 5 42 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 6 6 1 OPTIONAL HARDWARE AND SOFTWARE Optional equipment offered with the M200AH includes Rack mount with slides Rack mount without slides ears only Rack mount for external pump Stainless Steel zero span valves Oxygen Sensor 4 20mA isolated outputs Molybdenum Converter Model 501 External Stainless Steel Molybdenum Converter 296 54 Qv Up ips External Desiccant Canister 10 Alternate Bypass Flow Orifice 500 cc min Note Zero Span Valves and an Oxygen Sensor cannot be installed in the same instrument Rack Mount Options Rack Mount including slides and ears permits the Analyzer to be mounted in a standard 19 wide x 24 deep RETMA rack This permits convenient slide out operation for servicing It can also be ordered without slides for applications requiring the instrument to be rigidly mounted in a RETMA rack The external pump can be ordered in the following configu
79. 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 pulsation s will be noticed as the M200AH switches from NO to NO This is due to differences in flowrates Cv in each channel These differences are taken out in the calibration process resulting in slightly different slopes for the NO and NO channels Large pulsation s when switching to the NO channel is indicative of a bad converter When sampling zero gas the PMT reading should be less than 50 mV and relatively constant High or noisy readings could be due to 1 Electric test variation in the 2000 mV signal observed will be sampling errors of the V F board and preamp noise See Section 9 1 3 2 Excessive background light which is caused by a possible contaminated reaction cell Humidity undried ambient air in the ozone generator feed air 4 recently exposed to room light It takes 24 48 hours for the PMT to adapt to dim light 5 Light leak in reaction cell 6 Miswiring of the thermoelectric cooler causing the PMT to be heated table continued 9 5 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 1 Test Functions Continued NORM PMT 0 5000 mV AZERO 20 100 mV Check value in Table 2 1 HVPS 400 600 VDC DCPS 2500 200 mV 8
80. T ELECTRICAL TEST 03 GEN OVERRIDE 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 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 M200AH will resume control over the signals 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 the displayed value The exact voltage values depend on the jumper settings on the analog output buffer amplifiers on the V F card The analog output is created by 4 digital to analog converters located on the V F card This selection starts a procedure to calibrate these outputs Refer to Section 9 3 3 1 for a detailed procedure Using the test channel it is possible to route some of the internal analog signals out of the 4th analog output port This Diagnostic mode is useful for intermittent problems since the signal can be captured on a strip chart recorder and examined for periods of fault conditions Sets the M200AH into a known state and turns on an LED near the PMT to test the instrument signal
81. TE The ozone generator is independently controlled in the SIGNAL I O OPTIC TEST and ELECTRICAL TEST diagnostics After exiting these diagnostics the ozone generator is restored to the state specified by the above conditions 9 50 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 6 1 The 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 proceeding with 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 De ionized water or dilute 5 10 conc in de ionized water hydrochloric acid can be passed thru the dryer This should be done only with the dryer and at room temperature 2 Contamination with organic liquids and Freons rinse th
82. TR Pressing ENTR actually changes the calculation equations 7 Press EXIT M200AH returns to sampling Immediately after calibration data is not added to the DAS averages Table 7 6 details the span calibration procedure with span gas coming in through the sample port 7 6 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 7 6 Manual O2 Span Calibration Procedure Span Gas Thru Sample Port Press This key sequence causes the M200AH to prompt for the CAL 02 CONC expected O concentration Enter the O span concentration value by pressing the key under each digit until the expected value is set 2 Press ENTR Pressing ENTR stores the span value and returns the prompt to the CAL menu Wait for reading to stabilize at span value 4 Press SPAN If you change your mind after pressing SPAN you can still press EXIT here without spanning the instrument 5 Press ENTR Pressing ENTR actually changes the calculation equations and causes the instrument to read the expected span concentration Press EXIT M200AH returns to sampling Immediately after calibration data is not added to the DAS averages 7 3 Manual Zero Span Check with Zero Span Valves Option The Zero Span valve option can be operated from the front panel keyboard as described below The Zero Span valves allow zero and span gas come in through ports on the rear panel of the instrument The Zero Span valves can be set up to opera
83. They operate the zero valve LO span valve and HI span valve To operate the valves they must be held closed for at least 1 second The valve will remain in operation for as long as the contacts are closed In order to operate the valves again the contact closures should be held open for at least 1 second then may be closed again The default action is to do a span check when the valves are operated A span check does not calibrate the instrument when the valves are operated To calibrate the M200AH when the valves are operated go to the VARS section on the front panel menus Press SETUP MORE VARS then scroll to DYN_ZERO DYN_LO_SPAN or DYN_HIGH_SPAN and set the variable to ON With the variable in the ON state the M200AH will calibrate when the contact closure is released Table 7 9 shows what type of check is performed based on the settings of the three contact closures Table 7 9 Z S Valve Modes with Remote Contact Closure External Zero External LO Span External HI Span Operation Contact Closure Contact Closure Contact Closure D normal monitoring Calibrate only if Dynamic Calibration Variable is ON 7 10 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 6 7 7 7 8 NO Only Mode Calibration For details on the operation of this mode check Section 5 4 In NO only mode the span check or span calibration is operated using the same procedures covered in Se
84. Zero filter is subtracted from the current reading thus producing a negative reading High AutoZero readings can be caused by A Leaking AutoZero valve B Electronic 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 a high zero offset After fixing the cause of the high AutoZero readings the M200AH will take 15 minutes for the filter to clear itself 9 2 5 Excessive Noise Common reasons for excessive noise are 1 Leak in pneumatic system 2 Light leak check the sensor module with strong light Check for missing O rings in Sensor Assembly 9 26 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 3 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 25 mV If the ozone generator or reaction cell is contaminated disassemble and clean 6 Broken PMT temperature control circuit Check P
85. alue to near zero The Instrument will now display the NO OFFSET value It should also have a value near zero 0 0 50 The Instrument will now display the O2 OFFSET value It should also have a value near zero 0 0 50 Step 4 The M200AH is now ready to measure sample gas Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 E ul 4 Li gt L I m LU I S T Lu 2 1 i Figure 2 5 Front Panel 2 12 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2
86. ange can be controlled remotely The TEST values will show the range the instrument is currently operating in and will dynamically display range change information when necessary Independent range option allows different ranges for each output When enabled there will be three range values displayed NO NOx and NO NOTE Each of the range modes Single range Auto range and Independent ranges are mutually exclusive Oxygen Sensor Range O RANGE Option For units equipped with the Sensor Option this is the Full Scale Range of the rear panel O analog output Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Signal Stability STABIL NOX STB The instrument noise is computed by calculating the standard deviation of the last 10 minutes of concentration data If NO NOx switching mode is selected the noise reading is that of the NOx channel If NO only or NOx only mode is selected the Noise applies to the mode selected The noise value only becomes meaningful if sampling a constant concentration for more than 10 minutes The noise value should be compared to the value observed in the factory check out Sample Flow SAMP FLW 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 This will register variations in flow caused by ch
87. anges in atmospheric pressure but will not detect a plugged sample flow orifice The sample flow into the reaction cell is 50 10 cc min with a bypass flow of 250 cc min 50 The instrument reports a flow of 290 50 cc min Ozone Flow OZONE FLW 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 250 10 cc min PMT Voltage PMT The PMT VOLTAGE measures 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 there is large amounts of NO being measured If the PMT reading is consistently 5000 mV that indicates an off scale reading Typical readings bounce around which is normal AutoZero Voltage AZERO The AutoZero Voltage is the PMT output when the AutoZero valve is actuated It provides a zero reference which is subtracted from all NO and NOx readings The value typically will be near 0 mV Readings in the range 10 to 50 mV are acceptable High readings indicate a light leak in the reaction cell recent exposure of the PMT to light or contamination in the reaction cell High Voltage Power Supply Voltage 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 vo
88. ation concentration in PPM then determine the expected voltage from the X axis 9 21 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 10 Adjust S2 the HVPS coarse adjustment on the preamp board to the setting that produces a 11 signal that is closest to 640 mV Adjust S1 the HVPS fine adjustment to the setting that produces a signal that is closest to 640 mV Use R19 to trim the reading to 640 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 10 minutes The reading is stable when the STABIL TEST function drops to 2 0 or less Then do a span calibration by CAL SPAN ENTR After the span is completed do the span quality check procedure in Table 7 11 This procedure is extremely important to assure that the instrument will operate with optimum noise linearity and dynamic range Electric Test ET Procedure 1 2 3 4 5 Any time the gain of the PMT buffer amplifier circuit R19 is changed that will change the ET reading Since the gain was adjusted in the above procedure do the following to re adjust the ET signal re adjust ET press SETUP MORE DIAG then scroll to ELEC TEST and press ENTR Scroll the TEST functions until PMT is displayed Adjust R27 until 2000 mV 50 is displayed Press EXIT to return to SAMPLE mode Optic Test OT Procedure 1 2 3 4 5
89. ation or power up MEASURE MODE text NONOX NO NO NO only mode NONOX NO only mode switching mode TPC_ENABLE ae ON OFF Temp Pres compensation enable DYN_ZERO Logic ON OFF Calibrates instrument during AutoCal Sequence or external contact closure or RS 232 command DYN_SPAN Logic ON OFF Calibrates instrument during AutoCal Sequence or external contact closure or RS 232 command CONC_LIM_ENA LOGIC NO YES Enable concentration limit alarms NOx CONC LIM CONC_LIM 5000 NOx concentration limit alarm concentration NOx concentration limit alarm alarm BETTE NO CONC LIM mp 5000 NO concentration limit alarm Name Units Description NO2_CONC_LIM o 5000 NO concentration limit alarm SFLOW_SET E 0 1000 Nominal sample flow rate RS232_MODE Bit 0 99999 RS 232 port 1 mode flags Add Field values to combine flags 1 quiet mode 2 computer mode 4 enable security 8 enable API protocol 16 enable alternate protocol 32 enable multidrop 64 enable modem 128 ignore RS 232 line errors 4096 enable command prompt CLOCK_ADJ 60 Real time clock speed adjustment 9 18 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 port
90. attached can be cleaned in an ultrasonic bath Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 10 Reassemble in the reverse order of disassembly being sure to seat the paper gasket in the reaction cell before installing the window After inserting the window drop the o ring in before inserting the sleeve Reconnect pneumatics and heater connections then re attach the pneumatic sensor assembly 11 Perform leak check procedure covered in Section 8 6 Perform light leak procedure covered in Section 8 7 The cleaning procedure is complete 12 The analyzer span response will fall 10 12 in the first 1 2 days after cleaning due to the window re conditioning OZONE INLET FITTING FTODO x AMPLE INLET FITTING F TOO ORI ORO SPRIN FILTE FLO ne ORI OZONE FLOW ORIFICE EWEL DOWN ne ORIN 49 EXHAUST FTOO 7 HOUSI INSULATOR 2 Ys PA ESSEN i 7 2 00227 7 2 IG 2 32 N N X ooo 2 1 y 4 NOZZLES ORI WINDO ORI DO NUT 272 4 d 2 MOVED N 060003 THERMISTOR EEE Figure 8 3 Reaction Cell Assembly 8 7 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 m
91. be read using the DIAGNOSTIC SIGNAL VO feature See Table 9 4 for details Thermistor Temperature Amplifier Adjustments The 4 temperature amplifiers are controlled by a common pot R34 on the upper edge of the card If the temperature readouts are in error 1 2 3 Locate the Box temp thermistor on the board and place a thermometer near the thermistor Select the BOX TEMP TEST function on the front panel Adjust R34 until the front panel readout matches the thermometer readout This will cause all of the readouts to accurately measure their respective temperatures Converter Thermocouple Amplifier Adjustments The converter temperature is sensed by a Type K thermocouple The cold junction compensation and signal conditioning are done on the Temp Status board 9 43 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 The thermocouple amplifier for the converter temperature has a gain adjustment The voltage across J2 reads 27 5 mV when the converter temperature is 700 C The CPU is programmed to always drive the temp to 700 C so the thermocouple voltage must be used as the absolute reference as to the correct temperature The temperature can be adjusted by the R6 pot To adjust the 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 front panel readout eq
92. ccept the default password Scroll to Optic Test and press ENTR to turn on optic test Instrument response should come up to the values indicated in Table 2 1 To turn off this test press EXIT To return to the SAMPLE mode press EXIT until SAMPLE is displayed in the upper left display For more information about OT operation see Section 9 1 3 3 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 When the instrument is warmed up re check the TEST functions against Table 2 1 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 1 For a preliminary checkout we recommend calibration with span gas coming in through the sample port The procedure is Step 1 Set the range then enter the expected NO NO and span gas concentrations For Units w o O Option 1 Press This key sequence causes the M200AH to CAL CONC NOX prompt for the expected span concentration Enter the span value by pressing the key under each digit until the expected value is set For Units with O Option Press CAL NOX ENTR CONC NOX Press ENTR Press ENTR ENTR stores the expected NO span value The internal formulas are adjusted to compute this number when span gas concentration is input into the instrument In the same CAL CONC sub menu press the NO button and ente
93. ctions 7 1 to 7 5 The main difference to note is that only one channel namely the NO channel will be checked or calibrated For example in Table 7 3 Entering the Expected Span value only the NO concentration is required The NO NO valve is continuously in the NO mode And since the converter is never switched into the sample gas stream none of the converter efficiency procedures apply NO Only Mode Calibration For details on the operation of this mode check Section 5 4 In NOx only mode the span check or span calibration is operated using the same procedures covered in Sections 7 1 to 7 5 The main difference to note is that only one channel namely the NOx channel will be checked or calibrated For example in Table 7 3 Entering the Expected Span value only the NOx concentration is required The NO NOx valve is continuously in the NOx mode Since the instrument is always in NOx mode it is not possible to apply converter efficiency compensation to the NOx value This is because the efficiency should only be applied to the portion of the signal The valve never switches to measure the proportion of NO in the sample gas therefore the fraction of the sample that is is unknown It is recommended that the converter efficiency be measured when the instrument is calibrated This procedure is covered in Section 7 10 Calibration Requirements for AutoRange or Remote Range In AutoRange there are two separate calibrations for Lo
94. ctor 5 3 4 5 y ve gt 5 9 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 4 M200AH Setup Menu Level 5 calibration and setup menus 232 options in the VARS menu Set the Instrument ID Internal software variables E Reference Description Section PREV NEXT scroll up and down through the VARS menu Jump will go to variable number selected EDIT will allow changing the selected variable PREV NEXT scroll up and down through the DIAG menu 5 3 7 9 There are 8 diagnostic menus for testing 9 1 3 various sections of the M200AH Exit from the SETUP menu 5 10 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 2 Sample Mode 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 TEST functions allow the operator to examine several important operating parameters of the M200AH to verify correct Analyzer operation If faults are discovered refer to Troubleshooting Section 9 Range RANGE This is the Range of the instrument In single range mode there is one range for all 3 rear panel analog outputs The AutoRange option allows 2 different ranges for each channel and will automatically switch to the other range dynamically as concentration values require By selecting Remote AutoRange the range ch
95. curate measurement of low concentrations of Operating the Converter where the concentrations exceed 5 ppm will cause lower efficiencies and will shorten the life of the converter External Desiccant Canister Option This Option is located between the PermaPure Dryer and the ozone flowmeter See Figure 2 2 for location and Figure 8 5 for pneumatic schematic It is mounted external to the analyzer It should be used at extremely humid sites or where the 70 C dewpoint air produced helps in reducing reaction cell contamination and window clouding Alternate Bypass Flow Orifice Option The standard bypass flow is 250 cc min For those applications requiring a higher sample flow this option provides a 500 cc min bypass flow The overall sample flow is 550 cc min with this option installed The orifice is located in the vacuum manifold at the rear of the instrument see 6 8 Figure 2 6 M501 External Converter Option The M200AH can be ordered with a Model 501 Thermal Converter Its conversion performance is very similar to the Mini HiCon The advantage of this converter is that it is less prone to plugging because it is constructed of larger diameter tubing also the conversion efficiency is very high because the thermal converter is followed by a molybdenum converter Since the converter is external to the M200AH the response of the instrument is considerably slower if operated in the NO NOx switching mode This is due to the larger int
96. d 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 5 3 7 Diagnostic Mode The M200AH 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 23 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 M200AH To set the ID press SETUP MORE COMM ID and enter a 4 digit number from 0000 9999 then press ENTR There are more RS 232 setups in the VARS menu Section 5 3 9 5 3 9 Variables Menu VARS This menu e
97. d in the computer The NO component is calculated by subtracting NOx NO NO using the built in computer The three results NO NOx and NO are then further processed and stored by the computer yielding several instantaneous and long term averages for all three components Periodically the AutoZero valve switches allowing the analyzer to read zero background The AutoZero readings are subtracted from all of the other readings This improves zero baseline stability 4 1 2 Oxygen Measurement Option The Oxygen Sensor used in M200AH utilizes the paramagnetic susceptibility of oxygen a physical property that distinguishes oxygen from most other common gases The sensor incorporates two nitrogen filled glass spheres mounted on a strong rare metal taut band suspension This assembly is suspended in a symmetrical non uniform magnetic field When the surrounding gas contains paramagnetic oxygen the glass spheres are pushed further away from the strongest part of the magnetic field The strength of the torque acting on the suspension is proportional to the oxygen content of the surrounding gases Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Figure 4 1 Paramagnetic Sensor Refer to Figure 4 1 The measuring system is null balanced First the zero position of the suspension asse
98. ds data values etc by spaces Words such as T SET 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 abbreviations are not accepted 5 7 2 Command Summary The information contained in the rest of this section covers all of the normal commands that are required to operate the instrument from a remote terminal If you are going to be writing computer programs to communicate with the M200AH 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 shows additional features of the port designed to support a computer driven interface program 5 31 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 12 RS 232 Command Summary T LIST ALL Print all test variables enabled with T SET or ALL warnings T name Print single test name from Table 5 15 T CLEAR ALL Disable T LIST use with T SET name W SET ALL Enable display of all warnings during W LIST W LIST ALL Print warnings enabled with W SET or ALL warnings W name Print individual name warning from Table 5 16 comm D SYS_RESET Resets analyzer same as power on D RAM RESET System reset plus erases RAM Initializes DAS NO NO conc readings calib not affected D EE_RESET System reset plus erases EEPROM RAM_RESET actions se
99. dware for the PMT detector 2 Precision voltage reference and voltage generation and control for the 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 58 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 Figure 9 11 The temperature is controlled by a proportional temperature controller located on the Preamp board The input voltage from the supply is 15 VDC Typical current through the cooler at room temp is about 1 5 to 2 A At normal room temperatures the 7 C set point should be maintained within 0 1 C The current and voltage can be measured at test points on the fan shroud at one end of the NOx sensor module See the Schematic in the Appendix 9 59 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2
100. e adjusted to produce the correct response of the system Once per quarter the M200AH should be calibrated using one of the procedures in Section 7 Also a 3 point linearity check zero low span high span will be performed to confirm system linearity It is important to note that when doing a linearity check the calibration gasses have analysis errors For example if 2 standards are being used the linearity could be theoretically be as much as 4 in error even if the instrument and sample induction system are perfect Teledyne API recommends that EPA Protocol 1 1 gasses be used for linearity checks to minimize non linear responses due to analysis errors of the gas bottles 7 12 3 Converter Efficiency In many applications the concentration is low enough lt 5 that converter efficiency checks are not required If your application requires an efficiency check refer to 40 CFR Part 60 Method 7E for the recommended procedure Refer to Section 7 11 if automatic converter efficiency compensation is required 7 15 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 THIS PAGE IS INTENTIONALLY LEFT BLANK 7 16 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 8 MAINTENANCE 8 1 Maintenance Schedule NOTE The operations outlined in this chapter are to be performed by qualified maintenance personnel only Table 8 1 Preventative Maintenance
101. e API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 1 HOW TO USE THIS MANUAL The Model 200AH has been designed to produce accurate data be serviceable reliable and easy to use The M200AH s microprocessor continually checks operating parameters such as temperature flow and critical voltages The instruments design uses top mounted modular components with captive screws to facilitate repair and ease of access If you encounter any difficulty refer to the Troubleshooting Section 9 General Hints We recognize that the need for information from this manual changes as time passes When the instrument first arrives it is necessary to get it up and running quickly and verify its correct 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 M200AH Front Panel Menus The Menu Index briefly describes the front panel menus and refers you to other sections of the manual that have a d
102. e full scale range desired from 5 ppm to 5 000 ppm 5 3 4 2 Auto Range and Remote Range NOx Measurements Auto Range allows each of the 3 output signals NO NOx NO to automatically range between a low value and a higher value The Hi range mode is signaled by a bit on the STATUS connector see Table 5 8 When the instrument output increases to 9896 of the low range value it will Auto Range into Hi range In Hi range when the output decreases to 7596 of low range it will change to the lower range If you select a Hi range that is less than Low range the M200AH will remain locked in Low range and behave as a Single Range instrument 5 20 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 To set up Auto Range press SETUP RNGE MODE AUTO then press ENTR To set the values press SETUP RNGE SET The M200AH will prompt you for LO then HI which is the lower and upper ranges of Auto Range Key in the value desired then press ENTR Remote Range works the same as AutoRange except that the LO HI range decision is made via remote status inputs on the rear panel see Figure 2 2 for pinout Calibration of Remote Range is also the same as for AutoRange see Section 7 8 To select Remote AutoRange press SETUP RNGE MODE REM then press ENTR 5 3 4 3 Independent Ranges NOx Measurements Independent Ranges allows you to select different ranges for NO NOx and NO To set up Independent Ranges press SETUP RNGE MODE IND then
103. e 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 51 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 CIVNOIL INVOISS3 311871 y V NE e gt ek Lo Lo Su 45 070 3INV ul PD Rs El 47 15 1 LJ NE Hz a E mi uz m ES Se N c 52 poe 86 x SH fum Nue d x Th Lu l ul er Figure 9 7 Ozone Generator Subsystem 9 52 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 7 Flow Pressure Sensor The flow pressure sensor board consists of 2 pressu
104. e instrument is purchased without the Zero Span Valve Table 7 2 details the zero calibration procedure with zero gas coming in through the sample port Table 7 2 Manual Zero Calibration Procedure Zero Gas Thru Sample Port Check Before Check Before Calibration Section 7 above before Calibration proceeding Press CAL The M200AH enters the calibrate mode from sample mode The zero gas must come in through the sample port Select LO or HI If AutoRange is enabled you will be prompted for which Range range to calibrate Select the LO or Hi range then press ENTR Wait for reading to stabilize at zero value Press ZERO If you change your mind after pressing ZERO you can still press EXIT here without zeroing the instrument Press ENTR Pressing ENTR actually changes the calculation equations Press EXIT M200AH returns to sampling Immediately after calibration data is not added to the DAS averages 7 3 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Enter the expected NO and NO span gas concentrations Table 7 3 Enter Expected Span Gas Concentrations Procedure 1 Check Before Check Before Calibration Section 7 before proceeding Calibration 2 Press This key sequence causes the M200AH to prompt for the CAL CONC expected NOx concentration NOX Enter the NOx span concentration value by pressing the key under each digit until the expected value is set This menu can als
105. edyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 2 9 2 1 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 caused by leaks or plugged orifices 2 Lack of preventive maintenance 3 Change in zero air source A Air containing NO leaking into zero air line 4 Change in span gas concentration A Zero air or ambient air leaking into span gas line B Calibration gas tank exhaustion 5 Leak in the NO NO or AutoZero switching valves AC Power Check 1 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 no power fault 2 Unit is plugged into a good socket Analyzer must have 3 wire safety power input 3 Check circuit breaker Circuit breaker is part of the front panel power switch It is 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 9 24 Teledyne API Model 200AH NOx Analyzer Ins
106. ency compensation acceptable values are 80 to 1 20 There are some fault conditions that can be revealed by a channel linearity check such as a faulty switching valve or a partially plugged converter For the converter to operate properly there should be at least a few percent oxygen present in the sample stream There are 2 ways to enter the converter efficiency Method is covered in Table 7 12 7 13 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 7 12 Converter Efficiency Automatic Calculation Step Action Comment Number Preparation Make sure a calibration is completed before setting up Converter efficiency Press Enter the expected NO concentration then press ENTR CAL CONC CON NO2 Input a known Allow reading to stabilize for 10 minutes concentration of calibration gas Press CAL ENTR By pressing ENTR the M200AH will calculate the ratio of the observed to expected NO and will use that ratio to compensate future NO readings The calculated value can be seen by pressing the SET button NOTE The CAL button will come on only if the Instrument is measuring NO gas and ratio is between the limits of 0 80 1 20 Press EXIT EXIT will return instrument to SAMPLE mode Method 2 If the converter efficiency is determined by some external means the value can be directly entered Press CAL CONC CON SET then key in the ratio and press ENTR then EXIT 7 12 Recom
107. ernal volume that must be purged during the NO NOx measurement cycle This effect is less noticeable if the M200AH is being operated in the NOx only mode Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 The M501 contains 2 converters a high temperature stainless steel and a molybdenum converter While this combination produces very high conversion efficiencies the life of the moly must be considered If high levels of are expected in the sample stream the high temperature converter converts only about 90 of the total NO the moly must convert the rest Since the moly operates by reacting the molybdenum metal with the NO its lifetime can be quite short if high levels 250 ppm of NO are present In instruments that have the external converter option the Mini HiCon housing assembly contains only the catalytic ozone killer and a heater to keep the ozone catalyst temperature at 200 C Its temperature is monitored in the TEST function O3KL Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 CALIBRATION AND ZERO SPAN CHECKS There are several ways to check and adjust the calibration of the M200AH These different methods are summarized in the following Table 7 1 In addition all of the methods described in this section can be initiated and controlled via the RS 232 port see Section 5 7 for details We strongly recommend that NOx SPAN CALIBRATION be done with NO span gas
108. es on any full scale range from 5 to 5 000 ppm The range is the concentration value that equals the maximum voltage or current output on the rear panel of the instrument If the range you select is between 5 and 500 ppm the front panel will read the concentration anywhere from 0 to 500 ppm regardless of the range selected If the range selected is from 501 to 5 000 ppm the front panel will read from 0 to 5 000 ppm The apparently wider range of front panel readouts is because the M200AH has 2 internal hardware ranges namely 0 500 ppm and 0 5 000 ppm The analog output is scaled for the range selected however the front panel reading can display correct concentrations over the entire physical range For O measurements option the instrument operates on any full scale range from 5 to 100 percent The range is the concentration value that equals the maximum voltage or current output on the rear panel of the instrument NOTE Only one of the following range choices can be active at any one time There are 3 range choices for NOx measurements O2 Measurements are always made on a single range 1 Single Range 2 Auto Range A Remote Range 3 Independent Ranges 5 3 4 1 Single Range NO Measurements This range option selects a single range for all output channels NO NOx of the M200AH To select Single Range press SETUP RNGE MODE SING then press ENTR To set the value for the range press SETUP RNGE SET and enter th
109. es some possible causes Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 2 Front Panel Warning Messages SYSTEM RESET Analyzer was reset powered on This warning occurs every time the instrument is powered up as in a power failure It also occurs if the RAM or EEPROM is 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 M200AH 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 warning can be caused by a plugged sample inlet AZERO WRN XXX X MV AutoZero reading out of specification XXX X is actual reading OZONE FLOW WARNING Ozone flow out of spec warnings occur most often due to loss of vacuum which causes the ozone flow to go to zero They also can occur due to a flow sensor failure VACUUM 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 M200AH 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 dur
110. est points provide analog output 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 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 M200AH is a true computer based instrument The microprocessor does most of the instrument control functions such as temperature control valve switching 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 6 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 4 2 5 V F Board The computer CPU board communicates via 2 major hardware assemblies These are the V F board and the front panel display keyboard The V F board communicates with the CPU via the STD 100 bus The V F board incl
111. etailed explanation of each menu selection Troubleshooting Section 9 The Troubleshooting Section 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 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 THIS PAGE IS INTENTIONALLY LEFT BLANK Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 2 GETTING STARTED 2 1 Unpacking CAUTION 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 To avoid personal injury always use two persons to lift and carry the Model 200AH 1 Before operation it is necessary to remove the shipping hold down screws Remove the instrument cover then remove 2 screws as shown in Figure 2 1 2 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 3 Please check the voltage and frequency label on the serial number tag on the rear panel Compare that to your local power before pluggi
112. f choices then press ENTR to select To disable a sequence select DISABLE from the menu 4 Press SET This menu sets up several timers and selects calibration or calibration check 1 TIMER ENABLE If set to ON the defined sequence will execute If set to OFF the sequence will remain in memory but will not execute START DATE calendar date to start sequence dd mmm yy day month year format START TIME time of day sequence will start hh mm hours minutes in 24 hr format DELTA DAYS and DELTA HOURS MIN is the time between each activation of the sequence By setting the Delta Hours variable to be other than an exact number of days the sequence can move ahead or be delayed each time it is run For example by setting DELTA DAYS 1 and DELTA HOURS 1 00 the sequence will execute 1 hour later each day To set it to move back Y hour each day DELTA DAYS 0 DELTA HOURS 23 30 DURATION Amount of time for each zero span point CALIBRATE If set to ON will calibrate adjust slope and offset If OFF will check but not change calibration 7 RANGE TO CAL Selects the range to calibrate LO or HI Applicable to AutoRange and RemoteRange modes 3 5 Press EXIT The M200AH now exits the AUTOCAL SETUP menu For each enabled sequence the M200AH will now AUTOCAL at the defined times 6 3 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 6 3 Table 6 3 Action of MODE Field in AutoCal MO
113. f problems occur see the Troubleshooting Section 9 3 2 Setup from the Front Panel There are 3 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 the BAUD rate by SETUP MORE BAUD then select the desired BAUD rate Set the RS 232 mode bit field in the VARS menu To get to the variable press SETUP MORE VARS and scroll to RS 232 MODE then press EDIT The possible values are 5 28 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 9 RS 232 Port Setup Front Panel Decimal Description Value Turns on quiet mode messages suppressed Places analyzer in computer mode no echo of characters Enables Security Features Logon Logoff a Enables RS 232 menus display on M200AH front panel display Enable alternate protocol Enable RS 232 multidrop protocol 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 Security Feature The RS 232 port can be connected to a public telephone line which could compromise instrument security If the LOGON feature is implemented the port has the following attributes 1 A password is required before the port will operate
114. g 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 concentration of the calibrator span gas being input They should be equal 2 When sampling span gas check the PMT TEST function reading The mV reading should be 8x the expected span concentration in step 1 above for range settings up to 500 ppm If over 500 ppm the value should be 0 8x the expected span concentration For example if the expected span gas concentration is 80 ppm the PMT reading should be 8 80 640 mV 30 3 Check ET and OT for the correct response 4 If the above do not check out perform the Factory Calibration Procedure Section 9 1 6 9 2 9 Inability to Zero If the ZERO button is not displayed when attempting to zero that means the reading is outside of the software gain ranges allowed In an analog instrument it would be the equivalent to the zero pot hitting the rotation stop Here are some things to check 1 Select the PMT TEST function With zero gas going into the instrument the value should be less than 25 mV a number close to 0 mV is common If you are getting a high reading here the probable reasons are 9 28 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 A A leak that admits
115. g mode the instrument is operating in the signal from the M200AH comes from the light emitted from the chemiluminescent gas phase reaction of nitric oxide NO and ozone O3 as follows NO only mode NO 0 NO 02 NO2 gt NO2 hv The reaction of with ozone results in electronically excited molecules as shown in the first equation above The excited 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 In the NO mode the sample gas is routed directly into the reaction cell Any NO gas present reacts with ozone producing light as described above In the NOx mode the sample gas is routed through a to NO converter and any present is reduced to NO The NO initially present remains as NO therefore the signal is the sum of NO and present in the sample gas stream In the NO NOx switching mode the Analyzer samples the gas stream and measures NO concentration by digitizing the signal from the Analyzer s photomultiplier tube PMT The 4 1 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 concentration is measured and stored internally The valve is then switched routing the sample gas through the converter the signal measured is the NOx concentration which is also store
116. gas containing NO w Contaminated reaction cell Remove and clean cell C Wet i e undried ambient air air into the ozone generator Check the PermaPure drier and associated plumbing for leaks and correct operation D Zero gas that isn t really zero Make sure you re not trying to zero the machine with sample air or span gas E AutoZero filter is corrupted with high readings Fix the cause of the high readings then input zero gas and wait for 15 minutes for the filter to clear 9 2 10 Non Linear Response Common causes are 1 Leak in pneumatic system 2 Calibration gas tanks concentration in error A Tanks certification test in error B Even if the NO concentration is correct different tanks may have variable concentrations of interfering gasses is often blended in the NO tanks and is a known interferent with chemiluminescent NOx analyzers If the CO2 concentration is markedly different between tanks the quenching effect on NO will produce non linearities This effect may also be present with gas standards that blend SO2 N2 NO The problem arises because the gas manufacturer uses FT IR to do the analysis FT IR does not have the same interaction between components as do chemiluminescent analyzers Variation in sample inlet pressure due to sample manifold inlet flow changes 4 High zero background The PMT TEST function should be near 0 mV with zero gas Readings above 25 mV indicate a light leak contami
117. ge then press ENTR Wait for reading to stabilize at span value 4 Press SPAN If you change your mind after pressing SPAN you can still press EXIT here without spanning the instrument 3 5 Press ENTR Pressing ENTR actually changes the calculation equations and causes the instrument to read the expected NO and NOx span concentrations Press EXIT The Zero Span valves are switched back to admit gas through the sample port and instrument returns to SAMPLE mode Immediately after calibration data is not added to the DAS averages Dynamic Zero Span Calibration Using AutoCal The M200AH can be automatically calibrated periodically using the Zero Span Valve Option and features in the AUTOCAL menu The Dynamic Zero Span feature can be enabled when an AutoCal Sequence is set up Refer to Section 6 2 for information With the Dynamic AutoCal in operation the M200AH is being continuously re calibrated We recommend that the quality of the calibrations be carefully monitored to assure that the instrument is performing correctly Subtle fault conditions can sometimes be masked by continuous re calibration 7 9 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 5 Use of Zero Span Valves with Remote Contact Closure The Zero Span valve option can be operated using Remote Contact Closures provided on the rear panel See Figure 2 2 for connector location and pinout There are 3 sets of contacts on the rear panel
118. he span value at 400 ppm and the units are changed to mg m the span value is NOT re calculated to the equivalent value in mg m Therefore the span value now becomes 400 mg m instead of 400 ppm Re enter the expected span concentrations in mg m3 units and recalibrate 5 22 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 3 4 7 Recorder Offset If necessary a recorder offset can be introduced into the analog output voltages This can be used to bias the output voltage or current 110 It is intended for older design chart recorders that cannot show slightly negative readings It can also be used to bias the input to a datalogger to offset small external ground loop voltages that are sometimes present in monitoring systems To set the recorder offset press SETUP RANGE OFFS and enter the offset voltage desired in percent The recorder offset will bias both the recorder and DAS analog outputs 5 3 5 Password Enable If passwords are enabled one of the values shown in Table 5 6 are required to calibrate or setup the instrument If the 512 password is known only calibrations can be performed If the 818 password is known the SETUP mode can be accessed The 101 password can be used to enter both calibration and SETUP menus A list of passwords is in Table 5 6 Table 5 6 Calibrate Setup Passwords Password Usage Password Calibration Password Use to get into CAL menus 512 101 Setup Passwor
119. hen ET appears press ENTR to turn it on 3 The value in PMT should come up to 2000 mV 200 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 CALIBRATION 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 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 instrument operating conditions The M200AH does the following when switching to optic test 1 Save the current instrument setup as to AutoRange indep range current range and place the instrument into the 500 ppm range 2 Turn off power to the ozone generator to assure there is no interfering light from the reaction cell 3 Turns off the AutoZero valve switching 4 Turn on the OT LED the PMT reading in TEST functions should be 100 20 mV If the HVPS or the span gain adjust on the preamp card has been changed without doing a FACTORY CALIBRATION the
120. her reliable method is to attach a rotameter or soap bubble flowmeter to the fittings to measure the flow 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 5 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 of the tube on your fingertips then sniff your fingers The odor of ozone should be readily apparent 9 4 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 1 Test Functions Continued PMT 0 5000 mV This is the instantaneous output of the PMT During normal operation the value varies widely as the M200AH switches from NO to NO modes Changes in reading will be synchronized with valve switching The PMT voltage values will be relatively constant when 1 Electric test variation in the 2000 mV signal observed will be sampling errors of the V F board and preamp noise See Section 9 1 3 2 Optic test variation in the 100 mV signal will be PMT dark current preamp HVPS plus item 1 above
121. ibration Procedure Due to the stability of modern electronics this procedure should only need to be performed if a 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 6 Before the actual calibration is performed switches on the V F card must be correctly set and jumpers set on the motherboard 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 Table 9 7 to configure the jumpers Table 9 7 Motherboard Jumper Settings Terminal Pair 2 Jumper Setting for Jumper Setting for Voltage Mode Current Mode DAC 2 NO2 units w o 1 2 JPS JP6 B C A B DAC 2 0 units with O2 1 2 1 5 JP6 B C DAC 3 TEST 7 8 JP7 JP8 B C V F Board Switch Settings 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 Table 9 8 V F Board Switch Settings Required settings 9 39 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492
122. ilter 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 2 Is the fault light on If it stays on after your clear the warning messages see Section 9 1 2 3 Compare the TEST functions to the factory values in Table 2 1 this will often provide important clues as to the problem If discrepancies are noted see Table 9 1 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 4 Pay special attention to the slopes the slopes are the software equivalent of the span pot on an analog instrument If the slopes are not 1 0 0 3 the gain has changed usually from a change in cell pressure vacuum compare to value in Table 2 1 possible causes Partially plugged ozone killer Change of pump or malfunctioning pump A B C Plugged pneumatics D Miss calibration E Change in altitude 5 Check the AutoZero reading in the TEST functions Compare it to the value in the factory checkout Table 2 1 If it is significantly 225 mV higher then A Turn the ozone generator off Use DIAG function See if the AutoZero reading drops more than 25 mV B If the reading drops the react
123. ing initial warm up or if the connector to the heaters is not plugged in after dis assembly It can also occur if the thermistor is not in position in the reaction cell PMT TEMP WARNING PMT temp out of spec The PMT temp has its own proportional controller on the preamp board Warnings sometimes occur during initial operation The warning can occur if the 7 pin connector to the interior of the sensor is not plugged in The test points on the TEC control board should be checked for proper voltage 15 VDC 0 5 CONV TEMP WARNING Converter temp out of spec The Converter temp is controlled by the CPU It has a thermocouple with amplifier on the Status Temp board Because of the high temperature of the converter 700 C the temp warning will tend to be the last warning to clear as the instrument is powered on table continued 9 9 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 2 Front Panel Warning Messages Continued BLOCK TEMP WARNING The sample flow orifice is located in a separate temperature controlled block near the rear of the instrument This message is most often present during warm up It can also occur if heater is not plugged in or if thermistor has fallen out of block DCPS WARNING DCPS is out of specification 2500 mV 200 mV Check each DCPS voltage per Section 9 3 5 OZONE GEN OFF Ozone generator is turned off See Table 9 11 for conditions CANNOT DYN ZERO Dynamic zero ca
124. ion cell could be contaminated Perform the cleaning procedure in Section 8 4 C If the reading remains high there could be a light leak Perform the procedure in Section 8 7 High readings also occur if the PMT has been recently exposed to high light levels such as dis assembly of the sensor assembly This is normal It usually requires 24 hours for levels to return to normal 6 Check the Offset value in the TEST functions Compare it to the value in the factory checkout Table 2 1 If the reading is significantly greater than the factory test value the reaction cell 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 AutoZero reading drops more than 25 mV 7 Perform the leak check procedure in Section 8 6 If slopes are different from each other by gt 0 3 this usually indicates a leak in the switching NO NOx valve partially plugged converter or improper calibration 8 Incorrect span gas concentration this could come either from wrong certificate on calibration gas bottle incorrect flows or setup in the calibrator or entering the expected span gas concentration incorrectly see Table 7 3 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
125. itude 4 Re connect the sample pump The RCELL reading should now display the reaction cell absolute pressure of approximately 5 in Hg A To adjust the SAMPLE FLOW 1 In SAMPLE mode scroll the TEST functions to SAMP FLW Observe the reading Then subtract the observed reading from the desired reading 2 Goto 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 3 Observe the SAMP FLW value If necessary repeat step 2 to adjust the reading again to match the desired flow rate 9 54 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Be T E 5 54 IN EUMATIC SENSOR ASSY 2 f ab 1 I mm E e m4 7 Mm EET Figure 9 8 Flow Pressure Sensor 9 55 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2
126. l 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 button to appear Make sure the instrument is receiving correct concentration span gas Make sure the expected span concentration is entered Check for dirty reaction cell Do the factory calibration procedure located in Section 9 1 6 A D NOT INSTALLED V F 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 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 3 To access these functions after you have pressed SETUP MORE DIAG then press NEXT PREV to select the desired mode then press ENTR to select the desired mode This section is a detailed description of the test and suggestions for its use 9 10 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 3 Summary of Diagnostic Modes DIAG Mode SIGNAL VO ANALOG OUTPUT DAC CALIBRATION TEST CHANNEL OPTICAL TES
127. llowed for purging of lines upstream of analyzer 6 Leaking NO NOx or AutoZero valve The leak can either be external or cross port 7 Insufficient time allowed for calibration cal gas source to become stable 8 Converter temperature too low 9 2 12 Analog Output Doesn t Agree With Display Concentration 1 V F board DAC s out of calibration Do DAC calibration and Factory Calibration 2 Analog outputs electrically loaded down causing voltage to sag Could be due to input 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 30 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 Subsystem Troubleshooting and Adjustments 9 3 1 Computer Display Keyboard The purpose of this section is to determine if the computer subsystem electronics hardware are working properly Assessment 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 M200AH front panel 3 Disconnect the 24 line flat ribbon cable J2 that connects the computer parallel port to the keyboard 4 Turn on the M200AH power switch Obser
128. lows the instrument to be connected to a wide variety of computer based equipment The interface provides two basic functions in the M200AH 1 First is a comprehensive command interface for operating and diagnosing the analyzer The command set can be used interactively or operated via stored program This interface has in fact more capabilities than the front panel keyboard 2 The interface can provide an audit trail of analyzer events In this function the port sends out messages about instrument 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 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 from 300 to 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 a switch which can 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 I
129. lt corresponding to a voltage of 0 to 1000 volts out of the HVPS The HVPS front panel TEST measurement should typically be in the range of 400 600V 5 12 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 DC Power Supply Voltage 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 RCEL TEMP This is a measurement of the temperature of the reaction cell It is controlled by the computer to 50 2 C Temperatures outside this range will cause the M200AH output to drift Box Temperature BOX TEMP This TEST function measures the temperature inside the chassis of the M200AH The temperature sensor is located on the Status Temp Board Typically it runs 2 to 10 C higher than the ambient temperature The M200AH has been engineered to maintain stable output over 5 to 40 C ambient temperature range PMT Temperature PMT TEMP 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 Block Temperature BLOCK TEMP The block temperature is the temperature of the sample flow orifice The block is mounted near the rear of the instrument and is located ups
130. lti turn zero and span potentiometers Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 4 2 3 Pneumatic Sensor Board The sensor board consists of 2 pressure sensors and a flow sensor One pressure sensor measures the pressure in the reaction cell The reaction cell is maintained at about one quarter of atmospheric pressure The second pressure sensor measures the pressure 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 M200AH 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 if the vacuum reading is 25 Hg relative to room pressure at sea level the absolute pressure would be 5 Hg If the 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 2 4 Computer Hardware and Software The M200AH Analyzer is controlled by a micro computer The computers multitasking operating system allows it to do instrument control monitor t
131. lue of the internal formulas so that the instrument reads zero The M200AH allows zero adjustment over a limited range of signal levels therefore the signal does not have to be exactly zero for the instrument to do a zero cal The instrument will not however allow a zero cal on any signal level therefore it is not possible to zero the instrument with high concentrations of span gas in the reaction cell If the ZERO key does not come on as expected check Section 9 2 9 5 2 2 4 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 NOx NO span concentrations must be entered before doing a SPAN calibration See Table 7 3 Like the Zero calibration the Span cal cannot be done with any concentration of span gas If signal level is outside certain limits the SPAN key will not be illuminated If you encounter this condition see Section 9 2 8 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 miss calibrated Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 2 2 5 NO NOx and Cal Concentration Before the M200AH can be spanned it is necessary to enter the expected span concentrations for NO and N
132. m x 43 cm x 61 cm Weight Analyzer 45 lbs 22 kg Weight Pump Pack 16 165 7 kg Power Analyzer 100 V 50 60 Hz 120 V 60 Hz 220 V 50 Hz 240 V 50 Hz 200 watts Power Analyzer 230 V 50 Hz 2 5A Power Ext Pump 110 V 60 Hz 220 V 50 Hz 240 V 50 Hz 295 watts Power Ext Pump 230 V 50 Hz 2 5A Environmental Installation Category Over voltage Category II Pollution Degree 2 Analog Resolution 1 part in 2048 of selected voltage or current range 1 part in 2048 of selected voltage or current range Recorder Output 0 100mV 0 1 5 10v bipolar 0 100mV 0 1 5 10 bipolar Current Loop Option 4 20ma isolated 4 20ma isolated Status 12 Status Outputs from opto isolator Measurement Units ppm mg m 96 oN Defined as twice the zero noise level At constant temperature and voltage Lag amp response times longer for external converter option Electrical ratings for CE Mark compliance 3 1 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 3 2 Warranty WARRANTY POLICY 02024c Prior to shipment Teledyne API equipment is thoroughly inspected and tested Should equipment failure occur Teledyne API assures its customers that prompt service and support will be available COVERAGE After the warranty period and throughout the equipment lifetime Teledyne API stands ready to provide on site or in
133. mbly as measured in nitrogen is sensed by a split photo sensor that receives light reflected from a mirror attached to the suspension assembly The output from the photo sensor is fed back to a coil wound around the suspension assembly This feedback achieves two objectives a First when oxygen is introduced to the cell the torque acting upon the suspension assembly is balanced by a restoring torque due to this feedback current in the coil The feedback current is directly proportional to the volume magnetic susceptibility of the sample gas and hence after calibration to the partial pressure of oxygen in the sample A voltage output is derived which is proportional to the current b Second the electromagnetic feedback stiffens the suspension damping it heavily and increasing its natural frequency making the suspension resilient to shock Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 A ISPLAY IGITAL 1 0 al S 4 1 2 AL Wes A d A TATU T PMT ANIFOL TN dec 2EACTI El A AUTOZE ALVE ZONE ITCHI EN DAT i m ALVE en SER Y FILTE EM x i AMPL ANIFOL Figure 4 2 Block Diagram 4 4 Teledyne API Model 200AH NOx Analyzer Ins
134. mendations for CEM Applications 7 12 1 Calibration Gasses The following is our recommendation for calibration gasses and equipment for the M200AH Regulator Specifications Ultra high purity two stage stainless steel body with stainless steel diaphragms Tefzel and Teflon seats and seals CGA 660 type Gauges are 0 4000 psig inlet with 0 100 psig outlet Nitric Oxide Calibration Gas specifications Use NO in nitrogen EPA protocol 1 NIST traceable long lead item order early for CEMS Certification Test gas and acid rain applications Use NO in nitrogen at 80 of calibration range 2 for routine calibration Example Order 80 ppm NO in N2 if calibrating the 0 100 ppm range 7 14 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 NOTE It is important to note that if you are using blended calibration gasses other components of the blend can interfere with the NO concentration value This can affect calibration accuracy and linearity See Section 9 2 10 for additional details Zero Ultra Zero Grade Air 99 999 pure Nitrogen Ultra High purity Nitrogen 99 999 pure 7 12 2 Calibration Frequency Typically the data acquisition system will perform a daily calibration This consists of switching valves to have calibration gas introduced at the sample probe and passing through the entire sample induction system The instrument or data acquisition system s slope and offset will b
135. menus A value of 1 disables the dilution feature 5 21 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 3 SELECT RANGE The range selection is the same with dilution as with normal monitoring See Section 5 3 4 for information on range selection You should note however the value entered should be the actual concentration of the calibration gas entering the dilution probe The units of this number is ppm 4 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 1 for calibration methods 5 3 4 6 Concentration Units The M200AH can display NOx concentrations in ppm or mg m and if equipped with the Oxygen Sensor option displays concentrations in To change the current NOx units press SETUP RANGE UNIT Select PPM or MGM then press ENTR Remember you should now reset the expected span concentration values in the new units and re calibrate the instrument using one of the methods in Section 7 The following equations give approximate conversion values The exact values depend on the standard temperature and pressure used by your regulatory agency NO ppm x 1 34 NO mg m ppm x 2 05 mg m NOTE 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 ppm with t
136. mp 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 Logs new slope and offset every time a zero or span calibration is performed also records the sample concentration reading just 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 DAS Data Channel Editing Step Action Comment Press SETUP DAS EDIT Enter DAS menu to edit Data Channels Press PREV NEXT Select Data Channel to edit Press EDIT Enter the Edit menu for the selected Data Channel Sepp Press SET gt 5 times Scroll through Data Channel properties until RS 232 REPORT OFF is displayed Press EDIT Edit selected setup property Toggle OFF to ON Change RS 232 REPORT property Press ENTR Accepts change gx Press EXIT 4 times Exits back to sample menu 5 19 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 3 4 Range Menu For NOx measurements the instrument operat
137. na TO So Figure 9 5 Power Supply Module Layout 9 47 Teledyne API Model 200 NO Analyzer Instruction Manual 06492 Rev G2 It rr I I Uh A t x AD ag r Z lt lt DE STET Lx E ue qoo LU I O e Sr Z E 11 O lt Lu 21 lt 4 uy ES 5 lt 1 mn TA 3 Lu I zu o a 2 c 1 10 E ZA L ul LU 527 Eu LU Su A gt LU Ca ee Cip I Lu n gt MET M Lu 1 ET Figure 9 6 Electrical Block Diagram 9 48 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 If the value is outside this range individual output voltages can be tested on connector P3 see the schematic in the Appendix for pinouts The Switching Power Supply output can be tested by observing the red LED on the TEC control board attached to the inside of the fan duct on the Sensor Module If the LED is on 15 VDC is being supplied to the c
138. nables you to change the settings on certain internal variables The VARS are defined in Table 9 5 which is located in the Troubleshooting Section 9 1 4 5 24 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 4 M200AH Operating Modes The M200AH has two main operating modes The instrument is normally in SAMPLE mode when it is taking data or doing a calibration The second main mode is the SETUP mode In this mode the many features of the instrument can be altered enabled or disabled Within these two main modes there are many other operating modes which are shown in Table 5 7 The mode the instrument is operating in is shown in the upper left of the front panel display Table 5 7 M200AH Operating Modes Mode Description 5 4 1 NO NO NO Switching Mode 5 25 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 This is the most common mode of operation It provides continuous output of NO NOx and gas concentrations To select switching mode press SETUP MORE VARS ENTR and press NEXT to scroll to the MEASURE MODE variable Set the value of this variable to NO NOx then press ENTR Press EXIT to return to SAMPLE mode 5 4 2 NOx Only Mode In this mode only NOx is measured The converter is in the sample stream continuously The output of the detector is sampled continuously Since only NOx is being measured there are 2 advantages to this mode First it is possible
139. nated reaction cell bad zero gas or wet air coming into the ozone generator If the reading is not less than 20 mV the instrument will not zero or span properly Check Section 9 2 9 5 Calibration device in error re check flowrates and concentrations This is especially true at low concentrations Mass Flow calibrators often become non linear if the flow is lt 1 of the full scale flow 6 Contamination in sample delivery system A Dirt in sample lines or reaction cell Contaminated cal gas source NO in NO cal gas is common C Dilution air contains sample or span gas 9 29 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 Ozone concentration too low A Wet air in generator need to disassemble clean dry B Electrical short circuit C Transformer partial failure 9 2 11 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 Figure 2 4 for venting recommendations Slow Response Contaminated or dirty sample delivery pneumatics A Dirty plugged sample filter or sample lines B Dirty reaction cell Sample inlet line too long 3 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 5 Insufficient time a
140. nerator 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 8 Pump Valves Pneumatic System A standard M200AH comes with 2 valves the NO NOx valve and the AutoZero valve see Figure 4 2 Depending on the selected operating mode the NO NOx valve 1 NO only mode routes sample gas continuously into the reaction cell 2 NOx only mode routes sample gas continuously through the converter then into the reaction cell 3 NO NOx switching mode switches gas alternately around then through the converter to measure NO NOx and by calculation NO The AutoZero valve provides a continuous zero reference Periodically the valve switches to turn off sample gas to the reaction cell The ozone continues to flow The zero reading is averaged and used to compensate subsequent readings for PMT zero offset 4 8 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 An external pump comes as standard equipment The Pump Pack includes a vacuum pump and ozone scrubber It is supplied with 0 25 tube fitting to connect to the exhaust fitting on the M200AH rear panel See Figure 2 4 for hook up information The pump pack is turned on by plugging the power cord into an AC outlet see Figure 4 3 The pump is supplied as standard equipment however if you are supplying a pump it must have the f
141. nfirm the correct voltages If the voltages step but are the wrong values the V F board may be out of calibration 3 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 assign as calibration controls See Section 7 5 for information calibration using external contact closures To test the digital inputs A Turn on the M200AH B Connect a jumper wire across pins and 2 of the REMOTE IN rear panel connector as shown in Figure 2 2 C Shortly after closure is made the instrument should switch into zero mode as indicated on the front panel display D Remove the jumper Shortly after the jumper is removed the instrument should exit the zero calibrate mode 4 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 Figure 9 5 for the location of the LED s in the PSM The state of the LED s can be checked from the Table 9 10 The comment section assumes the M200AH 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 38 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 3 1 ADC DAC Cal
142. ng for instrument temperatures to stabilize you can check for correct operation by using some of the M200AH s diagnostic and test features 5 Examine the TEST functions by comparing the values listed in Table 2 1 to those in the display Remember that as the instrument warms up the values may not have reached their final values yet If you would like to know more about the meaning and utility of each TEST function refer to Table 9 1 Also now is a good time to verify that the instrument was shipped with the options you ordered Table 2 1 also contains the list of options Section 6 covers setting up the options 6 Electric Test and Optic Test both generate simulated signals in the M200AH A Electric Test checks the electronics of the PMT signal path To operate Electric Test from the front panel 1 Scroll the TEST function to PMT 2 Press SETUP MORE DIAG then press ENTR to accept the default password Scroll to Electric Test and press ENTR to turn it on Instrument responses should come to the values indicated in Table 2 1 To turn off this test press EXIT For more information on the circuitry being tested refer to the Troubleshooting Section 9 1 3 2 B Optic Test is an end to end test of the analyzer HVPS PMT detector electronics computer It simulates a signal by turning on a LED in the Sensor Module To operate Optic Test from the front panel 1 Scroll the TEST function to PMT 2 Press SETUP MORE DIAG then press ENTR to a
143. ng in the Instrument 2 2 Electrical and Pneumatic Connections 1 Refer to Figure 2 2 to locate the rear panel electrical and pneumatic connections 2 Attach the pump to the Exhaust Out port on the instrument rear panel The exhaust from the pump should also be vented to atmospheric pressure 3 Attach the sample inlet line to the sample inlet port For initial testing sample gas can be calibration gas or stack gas The pressure of the sample gas at the inlet port should be at ambient pressure and constant See Figure 2 4 4 If desired attach the analog output connections to a strip chart recorder and or datalogger Refer to Figure 9 4 Analog Output Voltage Ranges for switch settings Factory default setting is 0 5 VDC 5 Connect the power cord to the correct voltage line then turn to Section 2 3 Initial Operation Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 WARNING Analyzer Exhaust Os Scrubber Pump Pack Danger Analyzer exhaust contains ozone Do not defeat the internal zone scrubber This device must always be present between the analyzer reaction cell and pump Vent pump exhaust to well ventilated area at atmospheric pressure FIRE or EXPLOSION HAZARD If the optional charcoal scrubber is used on the exhaust charcoal treated with halogen compounds must not be used Use only Teledyne API P N 00596 charcoal Wait at least 5 minutes after turning off pump before
144. ny non default settings such as RANGE or AUTOCAL Re enter the SPAN value Check all settings to make sure that expected setup parameters are present Re calibrate the machine so that the default slope and intercept are overwritten with the correct values 8 14 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 TROUBLESHOOTING AND 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 on how 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 A 1 NOTE The values of the readings shown on the front panel of the instrument may at times read XXXXXX This means that the reading is off scale and therefore meaningless General Troubleshooting Hints 1 Think of the analyzer as three sections Section 1 Pneumatics Over 50 of all analyzer problems are traced to leaks in the pump sample f
145. o achieve independent ranges the computer scales the 3 outputs using the ranges keyed in by the operator 7 10 Calibration Quality After calibration is complete it is very important to check the QUALITY of the calibration The calibration of the M200AH involves balancing several sections of electronics and software to achieve optimum accuracy noise linearity and dynamic range 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 NOx channels This is due to slight differences in pneumatic resistance in each pathway If the slopes are significantly different there is a calibration error or a cross port leak in the switching valve If there is a sudden change in slopes after a calibration that usually indicates a change in reaction cell pressure Check the Troubleshooting Section 9 The offset value gives information about the background signal level Check the observed offset value against the factory value in Table 2 1 If significantly higher check Section 9 1 6 Increasing readings are a predictor of problems 7 12 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 11 Table 7 11 Calibration Quality Check Step Action Comment Number Converter Efficiency Compensation
146. o be entered from CALS or CALZ 3 Press ENTR Pressing ENTR stores the NO span value and returns the prompt to the CONC menu 4 Press This key sequence causes the M200AH to prompt for the CAL CONC NO 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 5 Press ENTR Pressing ENTR stores the NO span value and returns the prompt to the CONC menu a udi Press EXIT Returns instrument to SAMPLE mode If desired compensation for converter efficiency CE can be included in the NO and concentration calculation The CE must be entered prior to calibration Refer to Section 7 10 for the CE procedure 7 4 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 7 4 Manual Span Calibration Procedure Span Gas Thru Sample Port Press This key sequence causes the M200AH to prompt for the CAL CONC NO 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 Press ENTR Pressing ENTR stores the NO span value and returns the prompt to the CONC menu Press CAL The M200AH enters the calibrate mode NO span gas should be fed to the sample port Select LOW or If AutoRange is selected it is necessary to select which range HIGH to calibrate This prompt
147. ollowing characteristics 1 The pump must supply 2 slpm at 5 Hg A 2 The ozone scrubber must remove all ozone from the analyzer exhaust 3 Connect the exhaust Figure 2 4 to a pump with a lt 3 m length of 1 4 O D 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 M200AH 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 A 47 mm diameter sample filter is provided as standard equipment to remove particulate matter from the sample gas It is important that the filter be maintained at regular intervals because particulates trapped on the filter have been shown to alter the concentration of the sample A suggested schedule is shown in Section 8 Maintenance It should be noted however that more or less frequent maintenance may be required depending on the situation Teledyne API
148. onally the current loop outputs can be isolated See Section 6 3 for a description of isolated current loop outputs The current outputs come out on the same terminals that are used for voltage outputs see Figure 2 2 The NO NO NO and Test Channel outputs have current loop capabilities See Troubleshooting Section 9 3 4 4 for electrical specifications The factory default is voltage outputs To convert from voltage to current loop move the jumpers on the motherboard from the default B C rear pins position to the A B forward pins position See the 01110 Motherboard schematic in the Appendix Status Output The status output is an option that reports 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 pass 50 ma of direct current The pin assignments are listed in Table 5 8 Table 5 8 Status Output Pin Assignments Output Definition Condition CLOSED IN HIGH SPAN CALIBRATION CLOSED IF FLOW WARNING WARNING EE EI EM NE ww 9 10 0 1 mo wecurwuss CLOSEDIFABSPRES gt iG The Status Board schematic can be found in the Appendix Drawing 01087 12 CLOSED IF ABS PRES gt 15 HG 5 27 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 7 5 7 1 RS 232 Interface The RS 232 communications protocol al
149. ontrols the converter temp to 700 C After cold start it O3KL TEMP requires about 30 min to come to temperature After temperature is 7 reached it should not vary more than 10 C See Section 9 3 4 for 315 C 5 C troubleshooting Warning limits are lt 690 C and gt 720 C The M200AH can be equipped with a molybdenum converter as an 200 10 C option The troubleshooting is the same as listed above except the warning limits are lt 290 C and gt 320 C If the M200AH is equipped with the M501 external converter option the converter housing is equipped with a heater to warm the ozone killer catalyst to 200 C RCEL PRESS 3 10 Hg A RCEL is the pressure in the Reaction Cell The instrument is very Thomas 607 sensitive to variations in reaction cell pressure 1096 change in output per 1 Hg pressure is typical Higher altitudes will decrease cell pressure due to lower pump back pressure Pressures higher than the acceptable range will decrease instrument sensitivity and increase noise SAMP PRESS 29 5 Hg at sea The sample pressure is taken upstream of the reaction cell It level 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 Change due to altitude is about 1 per 1000 ft o
150. ooler The current draw through the cooler can be measured across TP1 and TP2 The value of the current in amps is 10x the voltage measured and is typically 1 5 to 2 0 amps at room temperature The Switch Board can be tested by observing the diagnostic LEDS along the top edge of the board The following Table 9 10 describes the typical operation of each LED Table 9 10 Power Supply Module LED Operation NO NO Valve Should switch about every 6 sec On NO mode Off NO mode 2 AutoZero Valve Should switch every 2 minutes On Azero Off Sample mode Ozone Generator Power to ozone generator is off for 30 minutes after turning on an Power instrument that has been off for a long time If the instrument has been turned off for less than 60 minutes the ozone generator is immediately turned on 4 Block Heater Should cycle ON OFF every 20 sec to 2 min On continuously until up to temp 5 Conv Heater Should cycle ON OFF every 20 sec to 2 min On continuously until up to temp Reaction Cell Heater Should cycle ON OFF every 20 sec to 2 min On continuously until up to temp 9 3 6 Ozone Generator The ozone generator subsystem consists of a permeation drier flowmeter transformer generator assembly and driver board The location of the components is illustrated in Figure 9 7 Ozone is generated by drying ambient air then passing the air between two electrodes that have a large oscillating electric field generated by a high vol
151. pan checks SINGLE or IND range with HI span gas The Model 200AH can be equipped with an optional paramagnetic oxygen sensor that is capable of measuring full scale ranges from 5 to 100 The option consists of the paramagnetic sensor module an interface electronics board a flow control orifice that generates a flow of about 80 cc min through the sensor and a temperature controlled oven that maintains the sensor and flow control orifice at 50 C Note that an Oxygen Sensor cannot be included in an instrument that also includes the Zero Span Valves option 6 4 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 6 4 6 5 6 6 6 7 Isolated 4 20 mA Current Loop Option The M200AH comes equipped with 4 20mA current loop The electrical ground of this output is part of the instrument ground In certain applications the instrument ground must be isolated from the external ground For applications requiring electrical isolation we offer optional isolated current loop outputs With the exception of electrical isolation the setup and usage is identical to the standard equipment current loop output The calibration procedure is located in the Troubleshooting Section 9 Molybdenum Converter Option The Molybdenum Converter is used in applications where the concentration will not be expected to exceed 5 ppm In these applications it exhibits very high conversion efficiencies thus enabling the ac
152. path See Section 9 3 3 1 for details on using this test Tests just the electronic portion of the PMT signal path Used in conjunction with optic test see Section 9 1 3 2 This function controls the power to the ozone generator Unlike the other Diagnostic tests Gen Power remains in the state ON OFF you set it to even when Diagnostic mode is exited Function does not indicate status of generator 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 11 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 1 3 1 Signal I O Diagnostics Table 9 4 Diagnostic Mode Signal I O ea se DSP_BROWNOUT Display brownout is used to keep the display from getting corrupted during low line voltage conditions Circuitry on the Status Temp board senses low line voltage and sets this bit The CPU reads this and generates the BROWNOUT_RST signal described below EXT ZERO CAL Shows state of status input bit to cause the M200AH to enter Zero Calibration mode Use to check external contact closure circuitry 2 EXT SPAN CAL Shows state of status input bit to cause the M200AH to enter the Span Calibration mode Use to check external contact closure circuitry 3 EXT LOW SPAN NO Shows state of status input bit to switch the low span concentration valve in the zero span valve option
153. press ENTR To set the values press SETUP RNGE SET The M200AH will prompt you for the range of NO NOx and channels Key in the desired range for each channel then press ENTR after each value 5 3 4 4 O Range To set the value for the range press SETUP RNGE SET O2 and enter the full scale range desired from 5 percent to 100 percent 5 3 4 5 Dilution Ratio The dilution feature allows the M200AH to be used with a stack dilution probe With the Dilution feature you can select the range and display the concentration at the value and units of the un diluted gas in the stack The dilution probe dilutes the gas by a fixed ratio so the analyzer 1s actually measuring a much 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 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 2 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
154. r Instruction Manual 06492 Rev G2 Zero Span Calibration Procedure Continued Ste For Units w o For Units with O Option O Option 13 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 2 gt gt Press ZERO The ZERO button will be displayed Press ENTR Pressing ENTR actually changes the equations and zeros the O channel of the instrument Press EXIT and M200AH returns to the CAL menu Now input O Span gas switch gas streams to span gas E Wait 10 min Wait for reading to stabilize at the span value 18 Press SPAN The SPAN button should be displayed If there is no SPAN button check the Troubleshooting Section 9 2 8 for instructions on how to proceed In certain circumstances at low span gas concentrations both the ZERO and SPAN buttons will appear 19 Press ENTR Pressing ENTR actually changes the equations so that the concentration displayed is the same as the expected span concentration you entered above thus spanning the instrument 20 Press EXIT Pressing EXIT returns the instrument to SAMPLE mode 2 10 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Step 3 Review Quality of calibration Calibration Quality Check Procedure For Units w o O Option Scroll the TEST function menu until the NOx SLOPE is displayed Scroll the TEST function menu until the NO SLOPE is displayed
155. r end cap and power up the instrument Use Figure 9 12 to check the voltages at each pin of the supply 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 serviceable parts inside the supply 9 61 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Ir ril TT The OLTAGE Figure 9 12 High Voltage Power Supply 9 62 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 9 Z S Valves The Z S Valves is an option in the instrument Before troubleshooting this sub assembly check that the options were ordered and that they are enabled in the software Section 7 2 shows how the Z S valve option should be set up Check for the Z S valves Check for the physical presence of the valves See 1 Figure 2 6 for Z S Valve location 2 Check that the option has been enabled in the software 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 If the valves are present but CALS CALZ is not displayed call the factory Troubleshooting the Z S valves 1 Turn the instrument and sample pump on Locate the valve module on the rear panel
156. r the expected NO span value As before this value will be used in the internal formulas to compute the NO concentration value Press CAL NOX ENTR CONC NO Press CAL CONC NO Press ENTR Press ENTR ENTR stores the expected NO span value The internal formulas are adjusted to compute this number when span gas concentration is input into the instrument Press CAL 02 CONC SETUP RNGE MODE SNGL Press SETUP RNGE MODE SNGL Press Press SETUP RNGE SET 2 8 SETUP RNGE SET Enter the expected O2 span value by pressing the key under each digit until the expected value is set ENTR stores the expected span value The internal formulas are adjusted to compute this number when span gas concentration is input into the instrument Press EXIT Press EXIT Returns instrument to SAMPLE mode If necessary you may want to change ranges Normally the instrument is shipped in single range mode set at 100 ppm for NO and 25 for We recommend doing the initial checkout with these ranges After SETUP RNGE SET enter 100 and press ENTR The instrument will now be in the 100 ppm range for NO and if installed will display the range Enter 25 0 and press ENTR Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Step 2 Calibrate the instrument for NOx Zero Span Calibration Procedure Ste For Units w o For Units with Comment P O Option O Option 1 Input N
157. rameters 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 RS 232 levels before the modem will transmit data The most common requirement is the Ready to Send RTS signal must be at logic high 5 V to 15 V before the modem will transmit The Teledyne API analyzer sets pin 8 RTS to 10 volts to enable modem transmission To troubleshoot a 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 change the DTE DCE switch on the M200AH so the signal is on Pin 2 of the modem Go to the cable connected to the modem terminal and verify use a DVM tha
158. ration indicated by its current definition shown on the second line of the display Example 1 testing key 1 left most key At the top level menu key 1 is defined as the TEST function Pressing this key should cause the middle field of the top line of the display to 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 If the 5 character field above any key is blank the key is not defined pressing the key has no effect 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 1 Turn off the M200AH 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 for approximately 1 sec If all the LED s are observed to light they are working properly 9 3 2 RS 232 Communications The M200AH 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 The M200AH uses the RS 232 communications protocol to allow the instrument to be connected to a variety every manufacturer observes
159. rations 1 External pump pack this configuration comes standard with the M200AH 2 Pump Pack with rack mount fixed tray Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 6 2 Zero Span Valves Option See The Zero Span Valve option consists of a manifold of stainless steel valves plus drive electronics connected to the CPU The Option consists of two variations Option 50 has 2 2 way valves 1 3 way valve and operates in 3 modes 1 Sample mode all 3 valves off sample gas flows through the sample port to the instrument 2 Zero mode sample cal valve is energized to shut off sample flow zero valve is energized to input zero gas 3 Span mode sample cal valve is energized to shut off sample flow span valve is energized to input low concentration range span gas Option 52 consists of all of the features in Option 50 plus a second span valve to allow a low and high concentration of span gas Figure 2 6 for valve location Fittings on the rear panel are for two concentrations of span gas plus zero gas See Figure 2 2 and Figure 2 4 The valves are can be operated by several methods shown in Table 6 1 Note The Zero Span Valves option cannot be included in an instrument that also includes an Oxygen Sensor Table 6 1 Zero Span Valve Operation 1 Front panel operation via Calibration Section 7 Manual Zero Span Check CALS and CALZ buttons 2 Automatic operation using Setup and use of AUTOC
160. rd deviation of the last 10 minutes of data It is computed using NO channel data when in the NO NO switching mode or NO only mode When in the NO only mode it uses the NO data The noise value only becomes meaningful if sampling a constant concentration for more than 10 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 Light leak Faulty HVPS Defective Preamp board Outgassing Moly converter PMT recently exposed to room light Dirty contaminated reaction cell Mis calibrated slope offset outside of limits 9 3 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 1 Test Functions Continued SAMPLE FLW 290 cc min 30 OZONE FL 250 cc min 25 table continued This is the instrument flow It is computed using the up stream and down stream pressures across the sample and bypass flow orifices 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 Arapid method of determining if the orifice is plugged is to disconnect the sample bypass or ozone tubes upstream of their respective locations then briefly put your finger over the fitting You should feel the vacuum build up The bypass flow should be 250 cc min the ozone 250 cc min and sample flow of 50 cc min Anot
161. re sensors and a flow sensor See Figure 9 8 for a diagram of this board From these three sensors four values are computed and displayed on the front panel TEST functions They are 1 Ozone Flow measured directly S3 R3 2 Reaction Cell Pressure measured directly S2 R2 3 Sample Gas Pressure measured directly S1 R1 4 Sample Flow computed from sample pressure and reaction cell pressure S1 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 The flow pressure sensor board consists of 2 pressure sensors and a flow sensor See Figure 9 8 for a diagram of this board From these three sensors four values are computed and displayed on the front panel TEST functions They are 1 Ozone Flow measured directly S3 R3 2 Reaction Cell Pressure measured directly S2 R2 3 Sample Gas Pressure measured directly SI R1 4 Sample Flow computed from sample pressure and reaction cell pressure S1 S2 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 Goto DIAG mode by pressing SETUP MORE DIAG then select SIGNAL I O 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
162. rolled to 50 C 2 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 The alarm limits are less than 45 C and greater than 55 C The Box Temp is read from a thermistor on the Status Temp board 01086 It should usually read about 5 C above room temp The M200AH is designed to operate from 5 to 40 C ambient Therefore the box temperature should be in the range of about 10 to 50 C Temperatures outside this range will cause premature failures of components and poor data quality Warning limits are lt 8 C and gt 48 C The PMT detector is very temperature sensitive The PMT temperature should always be 7 C except at power up Temperatures more than 1 C 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 14 C Temperature of the orifice block that houses the sample flow orifice Should be 50 C except when the instrument is warming up 9 6 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 1 Test Functions Continued 02 TEMP 50 C 2 Temperature of the oven that houses the optional sensor and the Option sample flow orifice Should be 50 C except when the instrument is warming up CONV TEMP 700 C 10 C The CPU c
163. ruction Manual 06492 Rev G2 LE IF Figure 5 1 FLO OTE ZERC E CTED VEDI EL EX DE SA SS an 2 eG IF THE LO CTED SELE 5 2 Sample Menu Tree LE m Lu a 1 11 Li m E 1 RS Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 E EX SET ELEC LL X Es pu U 1 1 Le OFFSET OLT TEST _CHI SEI ET AE TI F BE ISABLE Figure 5 2 Setup Menu Tree Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 f ils cd E LL ys Oa 1 lt a n 7 L mm z TE E 1 E x Lid LI 1 Pure I 0 E 22 E d m Li
164. s 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 is in the Troubleshooting Section 9 3 3 1 9 1 3 7 RS 232 Port Test This test is used to verify the operation of the RS 232 port When started it outputs the ASCII letter X for about 2 seconds During the test it should be possible to detect the presence of the signal with a DVM A detailed procedure is given in the Troubleshooting Section 9 3 2 9 1 4 M200AH Internal Variables The M200AH software contains many adjustable parameters Many of the parameters are set at time of manufacture and do not need to be adjusted for the lifetime of the instrument It is possible to change these variables either through the RS 232 port or the front panel Altering the values of many of the variables will adversely affect the performance of the instrument Therefore it is recommended that these variables not be adjusted unless you have a clear understanding of the effects of the change Table 9 5 contains a description of each variable and a brief description of its function Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 5 Model 200AH Variables Default Value Range DAS_HOLDOFF 0 5 20 Time in minutes that data is not stored in the DAS after calibr
165. s and allows recall of the previous command When 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 5 10 for relevant commands Table 5 10 RS 232 Switching From Terminal Mode to Computer Mode Control T ASCII 20 decimal Switch to terminal mode echo edit Control C ASCII 3 decimal Switch to computer mode no echo no edit If the 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 5 30 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 11 RS 232 Terminal Mode Editing Keys Control R ASCII 18 decimal Control E ASCII 5 decimal NOTE To open the help screen Type and press the Enter key Commands are not case sensitive you should separate all command elements i e keywor
166. screws holding the reaction cell to the sensor 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 Push the reaction sleeve and window gently out of the reaction cell Clean the assembly with any of the following A Ammonia free glass cleaner B Baking soda sodium bicarbonate and water solution C Simple Green 10 1 dilution Rinse with distilled or de ionized water wipe with a clean tissue and dry It is normally not necessary to clean the ozone flow or sample flow orifices because they are protected by fritted filters However the following procedure is included here for completeness The manifold assembly should be cleaned by removing the o ringed fittings springs fritted filter orifices and O rings from the ozone inlet NOTE That the sample inlet does not contain a sample flow control orifice The sample flow control orifice is located in a heated block at the rear of the instrument 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 in either solvent by an ultrasonic bath for 30 minutes Replace o rings Do not remove the sample and ozone nozzles They are Teflon threaded and require a special tool for re assembly If necessary the manifold with nozzles
167. settings made previously Second the voltage output can be biased up to 10 of the selected range with the OFFSET parameter Just key in the desired offset or press EXIT to leave the OFFSET at zero F For DAC channels in VOLTAGE mode press CAL This will cause the instrument to automatically calibrate the channel G For DAC channels in current mode first connect a 250 ohm resistor in series with a current meter to the correct pair of terminals on the rear panel see Table 9 6 for terminal assignments Press CAL The instrument will output 4 mA to the rear panel terminals UP DOWN and ENTR buttons will be displayed Press the UP DOWN buttons until the correct reading is displayed on the meter then press ENTR 20 mA is then output to the rear panel As before press the UP DOWN buttons to get the correct reading then press ENTR H To go the next channel press the NEXT button and follow the previous steps starting with step f Proceed through all 4 DAC channels then exit To back up to previously calibrated channels press the PREV button 9 3 3 2 Changing Output Voltage Ranges Several different output voltage ranges can be selected by switch settings on the V F board See Figure 9 4 If you change the analog output voltage range the power to the instrument should be turned off then on and a DAC calibration performed Section 9 3 3 1 9 41 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 3ONVHM
168. t 250 cc min 1000x value present 700 mV 700 VDC output 41 DAC_CHAN 2 NO Output of NO channel in mV 42 DAC_CHAN_3 NO Test Channel output Also second NOx output 43 NOX_CONC YES NOx DAC programming voltage The following 3 signals can be set to output specific voltages to each DAC Use in conjunction to ANALOG OUTPUT test to check each DAC output channel The value keyed in should appear on the appropriate analog output channel This value overrides data being written from the analyzer Value reverts to instrument output when function is exited 44 NO_CONC YES NO DAC programming voltage See above for description 45 NO2_CONC YES NO DAC programming voltage See above for description 46 TEST_OUTPUT Displays voltage of selected analog signal 9 15 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 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 NOx concentrations the 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 NEXT button W
169. t 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 9 36 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Check that the voltage level on Pin 8 of the Analyzer is between 5 V and 15 V 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 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 independently addressable and 4 independent analog output channels The analog input channels are connected to a V F converter capable of 80 000 counts which is approximately 16 bit resolution The integration period is software selectable from 40 msec to 2 4 secs 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 The overall 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 of simple tests are described here that test one analog input channel the 4 analog output channels one digital input and one digi
170. tage transformer The generator cartridge transformer assembly is potted to eliminate corona and increase safety The module cannot be disassembled 9 49 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Common faults in the ozone generator are 1 A 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 and plug up 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 Also the nitric acid can destroy parts down stream of the generator 2 Contaminated ozone generator cartridge Disconnect fittings and run water through the cartridge to clean 3 Failure of the driver board Table 9 11 Ozone Generator Control Conditions Condition Description Ozone 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 OFF OFLOW_SET setup variable 4 Instrument powered on for more than 30 minutes ON 5 Instrument powered off for less than 1 hour and ozone ON generator was on when instrument was powered off 6 Ozone flow above low warning limit for 0 5 minutes and 12 condition 4 or 5 is true NO
171. tal 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 C The value displayed should read 2500 200 mV If the M200AH 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 M200AH The test can also be useful in diagnosing faults in the V F board 9 37 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 A Turn on the instrument B Enter the SETUP MORE DIAG menu C Select the ANALOG OUTPUT test This causes the M200AH to output a 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 60 80 100 of whatever voltage range has been selected For example the voltages would be 0 1 2 3 4 5 V if the 5 V range had been selected D Use a DVM on each of the analog output channels to co
172. te automatically on a periodic schedule See Section 6 2 to setup automatic zero span feature 7 7 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 7 7 Manual Zero Check Procedure Z S Valves Check Before Check Before Calibration Section 7 before proceeding Calibration 2 Press CALZ The analyzer enters the zero calibrate mode This switches the sample cal and zero valve to allow zero gas to come in through the zero gas inlet port in the rear panel 3 Select LO or HI If AutoRange is enabled you will be prompted for which range range to calibrate Select the LO or HI range then press ENTR Wait for reading to stabilize at zero value Press ZERO If you change your mind after pressing ZERO you can still press EXIT here without zeroing the instrument Press ENTR Pressing ENTR actually changes the calculation equations forcing the reading to zero Press EXIT M200AH returns to sample mode Immediately after calibration readings do not go into the DAS averages Refer to Table 7 3 to enter expected NO and NO values 7 8 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 4 Table 7 8 Manual Span Check Procedure Z S Valves 1 Press CALS The M200AH enters the span calibrate mode and switches the Z S valves to admit NO span gas 2 Select LO or HI If AutoRange is enabled you will be prompted for which range range to calibrate Select the LO or HI ran
173. ted range of adjustment allowed for either term and there are consequences of having the values near the high or low limits of their respective adjustment ranges The x term is the conditioned PMT signal PMT signal is adjusted for current zero AutoZero value range temperature and pressure The offset b term is the total background light Therefore in the case of the NO channel the b term should be very close to zero The b for the NOx channel is often slightly higher than the term for the NO channel The extra background is mostly from the converter The b term incorporates the PMT reading the AutoZero value the current span value temperature and pressure compensation factors Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Because the span calibration calculation includes zero calibration data and zero calibration includes span calibration data the zero and span calibrations can be performed in any order and the instrument will be accurately calibrated either way After every zero or span calibration it is very important to check the QUALITY of the calibration The calibration of the M200AH involves balancing several sections of electronics and software to achieve an optimum balance of accuracy noise linearity and dynamic range See Section 7 10 for the calibration quality check procedure 5 2 2 7 Automatic Converter Efficiency Compensation The M200AH can automatically compensate the NOx and
174. ther changes are 0 4 maximum Pressurizing the sample inlet will cause the M200AH to be noisy and to shift its reading SLOPE NO NO and SLOPE The slope is a software gain factor used to calibrate the analyzer When the instrument is span calibrated this parameter is set so the analyzer front panel and analog output show the expected span gas concentration There can be 2 values for SLOPE if AutoRange is enabled OFFSET NO NO O OFFSET The offset is used to zero the analyzer When the instrument is zeroed the offset term is set so the concentration reads 0 ppm There can be 2 values for OFFSET if AutoRange is enabled 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 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 1 2 Fault Diagnosis with WARNING Messages The M200AH monitors several internal values for alarm conditions If the condition for an alarm is met the alarm is displayed on the front panel and the warning is transmitted out the RS 232 port 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 2 shows the warning messages and giv
175. ting instructions 9 31 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Testing and operation of the CPU RS 232 port is described in Section 9 3 2 9 32 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 S TUTTI 1111 1 1 1 111 1 1 U 1118 EC JAPA oo DD m E Umm mm Umm 8 8 apo BO 1 1 O O O C Figure 9 2 CPU Board Jumper Settings 9 33 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 9 3 1 3 Front Panel Keyboard The keyboard consists of 8 keys and 3 LED s Key strokes are sent to the SBC40 computers parallel port The computer software detects the key strokes via CPU interrupts The bottom line of the display consists of 40 characters which is divided into 8 5 character fields Each field defines the function of the 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 ope
176. to optimize for shortest response time Second NOx is being continuously measured so that short transient events can be captured NOTE It is not possible to apply converter efficiency compensation to the NOx reading The NOx reading is composed of a NO component and a component The component is the only one impacted by the converter efficiency and since the instrument is always in NOx mode it is not possible to know the fraction of the NOx reading that is To select NOx only mode press SETUP MORE VARS and press NEXT to scroll to the MON_MODE variable Set the value to NOx then press ENTR Press EXIT to return to SAMPLE mode 5 4 3 NO Only Mode In this mode only NO is measured The converter is always out of the sample stream The output of the detector is sampled continuously Since only NO is being measured there are 2 advantages to this mode First it is possible to optimize for shortest response time Second NO is being continuously measured so that short transient events can be captured To select switching mode press SETUP MORE VARS and press NEXT to scroll to the MON_MODE variable Set the value of this variable to NO then press ENTR Press EXIT to return to SAMPLE mode 5 26 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 5 5 5 6 4 20 mA Current Loop The analog signal output is available on the rear panel as a voltage or 4 20 mA current output Opti
177. tream of the converter Running the converter at low pressure improves its conversion efficiency The normal temperature of the sample orifice block is 50 2 C and is controlled by the computer Oxygen Sensor Temperature O TEMP Option For instruments equipped with sensor option the temperature reading replaces the Block Temp reading and is the temperature of the oven housing the sensor Also included the oven is the sample flow control orifice The normal temperature of the oven is 50 2 C and is controlled by the computer Converter Temperature CONV TEMP The converter temperature monitors the temperature of the NO to NO converter and is controlled by the computer The nominal set point is 700 10 C The temperature sensor inside the converter is a type K thermocouple The thermocouple amplifier is located on the STATUS TEMP board If the thermocouple breaks the circuit will turn off power to the heater Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 If the analyzer is equipped with the molybdenum converter option the TEST function will report MOLY TEMP the temperature setpoint will be 315 10 C If the analyzer is equipped with the Model 501 external converter option the converter temperature is shown on the front panel of the M501 The TEST function O3KL will report the temperature of the catalytic ozone killer located inside the converter can Reaction Cell Pressure RCEL
178. trical Schematics table continued A 1 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table A 1 Electrical Schematics Continued A 2 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 APPENDIX B SPARE PARTS AND EXPENDABLES NOTE Use of replacement parts other than those supplied by API may result in non compliance with European standard EN 61010 1 Table B 1 Spare Parts and Expendables 02047 List Spare Parts M200AH 01713 Level 1 Spares Kit with Mini HiCon Converter M200AH 0171301 Level 1 Spares Kit with Moly Converter M200AH Expendables Kit M200AH B 1 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 THIS PAGE IS INTENTIONALLY LEFT BLANK B 2 Part Number 000940100 000940500 000940600 002270100 002730000 003690000 003690100 004020200 005140300 005960000 007040000 007280000 009690100 010860100 011310000 011390000 011930000 011980100 012360000 013140000 013570000 013620000 014060000 014080100 014610000 014640000 015770000 016200000 016330000 016680000 017110000 02047G M200AH SPL xls DCN 5333 SPARE PARTS LIST M200AH Orifice 3 mil 60 cc IZS Orifice 7 mil 250 cc 844 126010 Orifice 10 mil 500 cc Rx Cell 844 012607 Gasket Rx Cell Qty 12 E Filter TFE 37 mm 5 um Qty 100 872 006400 Filter TFE 37 mm 5 um Qty 25 872 0
179. truction Manual 06492 Rev G2 4 2 Operation Summary 4 2 1 NO Sensor Module Reaction Cell Detector The sensor module is where light from the chemilumenescent reaction is generated and detected It is the most complicated and critical sub assembly in the entire analyzer It consists of the following assemblies and functions The reaction cell and ozone flow control module Reaction cell heater thermistor PMT and High Voltage Power Supply PMT cooler cold block heatsink fan Preamp assembly A ES A Preamp range control hardware B HVPS control C PMT cooler temp control D Electric test electronics E Optic test electronics 4 2 2 Oxygen Sensor Module Option The main components of Oxygen Sensor are 1 The transducer body consists of the paramagnetic cell and the magnet frame The interior of the paramagnetic cell is the only sample wetted surface It is a precision machined component containing the suspension assembly and is secured within the magnet frame 2 Optical Assembly and Electronics Control PCB The optical assembly consists of a precision machined optical mounting bracket onto which the integrated electronics board and the small photo sensor board are fitted The optical assembly is secured to the magnet frame The electronics board contains the LED source temperature compensation thermistors and all other associated signal processing components including a 16 way DC connector and the mu
180. truction Manual 06492 Rev G2 9 2 2 Flow Check 1 Check TEST function RCEL this is the absolute pressure in the reaction cell It should be 3 10 in Hg A 2 Check that pump is running Observe pump for proper operation 3 Check that pump tubing is connected to rear of analyzer 4 Confirm that the sample pump is producing vacuum by removing fitting at rear of analyzer and checking for suction at fitting 5 Check for correct flows The M200AH has a flow splitter The flow into the reaction cell is 50 cc min and the flow through the bypass is 250 cc min It is best to use a calibrated flow meter to do the following tests It is assumed however that no flow meter is available A To test the bypass orifice remove the 1 8 tube that comes from the heated orifice block to the vacuum manifold Briefly plug the fitting on the vacuum manifold with your finger You should notice a vacuum build up B To test the sample flow orifice remove the tube that connects the orifice block to the vacuum manifold bypass flow tube Plug the fitting on the orifice block Remove the fitting that connects the orifice block to the sample inlet on the rear panel Briefly plug the fitting on the orifice block with your finger You should notice a vacuum build up C Remove the ozone fitting and compare relative flow rates shown in the TEST menu under OZONE FL It should read about 250 cc min D Re connect the sample and ozone lines then check RC
181. tup variables calibration to default values V LIST Print all variable names V name Print individual name variable V name value Sets variable to new value V CONFIG Print analyzer configuration R count Print last count DAS averages 5 32 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 13 RS 232 Command Summary Terminal Mode Editing Keys n 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 see Table 5 9 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 Table 5 14 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 5 33 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 5 14 RS 232 Interface Command Types First Character Message Type There are
182. uals 700 C for the CONV TEMP and the voltage at J2 is 27 5 mV 4 Recheck the two readings 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 3 4 3 Status Output Lines External Contact Closures The Status lines consist of 4 active input lines and 12 active output lines Individual lines are set or cleared under CPU control depending on the assigned alarm condition The CPU also monitors the 4 input lines for remote calibration and range control commands The status inputs and outputs are terminated at the rear panel see the schematic in the Appendix The output lines are opto coupled NPN transistors which can pass 50ma max of direct 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 SIGNA
183. udes of A D input channels digital I O channels and analog output channels The computer receives all of the instrument data and provides all control functions through the V F board 4 2 6 Front Panel The front panel of the M200AH is shown in Figure 2 5 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 computers on board parallel port The M200AH 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 The center field displays TEST values The TEST functions allows you to quickly access many important internal operating parameters of the M200AH This provides a quick check on the internal health of the instrument The right hand field shows current concentrations values of NO NOx and The M200AH can operate in any of 3 different sampling modes NO only NOx only and NO NOx switching mode For the NO or NOx only modes just the single gas being measured is displayed For the NO NOx switching mode the display scrolls between the NO NOx and concentration values every 4 seconds 4 2 6 1 Keyboard The second line of the display contains eight fields each field defines the
184. ure alarm Logic High Rxcell Conv Box temps out of spec Logic Low Temps within spec Status Bit In Diagnostic mode Logic High M200AH in Diagnostic mode Logic Low Not in Diag mode Status Bit Power OK Logic High Instrument power is on Logic Low Instrument power is off Status Bit System OK Logic High 2 No instrument warnings present Logic Low z 1 or more alarms present Status Bit Autorange High Range Logic High M200AH in high range of autorange mode Logic Low 2 M200AH in low range of autorange mode Current PMT voltage Same as PMT voltage in TEST menu Bi polar typically in 0 5000 mV range A 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 Box Temperature Typically 1800 mV for 25 C Temperature of the sample flow control orifice Typically 3500 mV for 50 C 9 14 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 4 Diagnostic Mode Signal I O Continued 33 PMT_TEMP NO PMT cold block temperature Typically 4300 mV for TE 34 DCPS_VOLTAGE DC power supply composite voltage output Typically 2500 mV 35 RCELL_PRESS NO 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 36 OZONE_FLOW NO Ozone flowmeter voltage Typically 3200 mV a
185. ure 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 table continued 9 19 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 Table 9 6 Test Channel Readings Continued TEST Channel Minimum Maximum Description RCELL TEMP 0 70 Reaction Cell temperature is set to 50 C At the setpoint a typical reading is 3600 mV BLOCK TEMP 0 70 The Block temperature is set to 50 At the setpoint a typical reading is 3600 mV IZS TEMP 0 70 The IZS temperature is set to 50 C At the setpoint a typical reading is 3600 mV CONV TEMP 0 1000 The Converter temperature is 315 C At the setpoint a typical voltage is 3150 mV PMT TEMP 0 70 The PMT temperature is unique in that the voltage is inverse to the temperature A typical reading for 8 C would be 4200 mV CHASSIS TEMP 0 70 The Chassis Box temperature is variable due to variable ambient air temperature The Box temp generally runs about 5 C above the surrounding air temp Thus in a 25 C room the Box temp would be about 30 C and have a TEST channel voltage of about 2000 mV DCPS VOLTAGE 5000 mV The DCPS is a composite of several DC power supply
186. ve 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 24 line cable to J2 and proceed to the next test 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 32k EE prom containing the setup variables 128k 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 If component level troubleshooting of this board is necessary contact the factory for schematics Like the display the overall functioning of the CPU can be confirmed by a simple test Locate the CPU board on the motherboard by referring to Figure 2 6 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 OY m es npe This flashing indicates the board is powered up and is execu
187. voltages in the instrument It has been arbitrarily set at 2500 mV which is typical HVPS VOLTAGE OV 5000 V The HVPS voltage is a scaled up reading of the programming voltage going to the HVPS Zero to 1000mV 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 5VDC range minimum corresponds to OVDC and maximum corresponds to 5VDC 9 1 6 Factory Calibration Procedure The Factory Cal procedure balances the PMT preamp and software gain factors so the instrument has optimum noise linearity and dynamic range It should be used in the cases where you were unable to zero or span the instrument or slope and offset values were outside of the acceptable range and other more obvious reasons for problems have been eliminated 9 20 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 PMT Calibration Procedure NOTE In this procedure a range of 100 ppm and a span gas concentration of 80 ppm is used as an example Other values can be used 1 On the Preamp board set S2 to 6 set S1 to 8 Turn R19 25 turns counter clockwise then 12 turns clockwise see figure 2 6 2 Set RANGE MODE to SING by pressing SETUP RNGE SET MODE to select single range operation Set the RANGE to 10
188. w range and High range There are 2 independent slopes and 2 offsets and 2 sets of converter efficiency parameters The instrument applies the appropriate values depending on whether the instrument is in low range or high range Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 9 Table 7 10 Calibration Requirements for AutoRange or Remote Range No matter which calibration method you choose from this chapter all of the following parameters must be set to properly calibrate the instrument on AutoRange or Remote range Range Low Range is selected by pressing High Range is selected by pressing CONC LO on the front panel CONC HI on the front panel Slope NOx and NO slopes for low range NOx and NO slopes for high range are set by span calibration are set by span calibration Offset NOx and NO offsets for low range NOx and NO offsets for high range are set by zero calibration are set by zero calibration Converter Efficiency CE can be set by one of the CE can be set by one of the procedures in Section 7 11 procedures in Section 7 11 Converter efficiency is optional Converter efficiency is optional Calibration Requirements for Independent Range In Independent Range mode there is one set of calibration parameters That is NOx and NO slopes and NOx and NO offsets and one converter efficiency parameter The calibration of the M200AH using independent range is the same as calibration in single range T
189. will not be displayed unless Autorange or Remote range is selected Wait for reading to stabilize at span value Press SPAN If you change your mind after pressing SPAN you can still press EXIT here without spanning the instrument 7 Press ENTR Pressing ENTR actually changes the calculation equations and causes the instrument to read the expected NO and NOx span concentrations Press EXIT M200AH returns to sampling Immediately after calibration data is not added to the DAS averages 7 5 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 7 2 Manual O Zero Span Check or Cal With Zero Span Gas in the Sample Port The calibration of the Sensor can be checked or adjusted using gas coming in the sample port This method is often used when the calibration gas is supplied from the stack sample probe or external tank and valve system Table 7 5 details the zero calibration procedure with zero gas coming in through the sample port Table 7 5 Manual Zero Calibration Procedure Zero Gas Thru Sample Port 1 Check Before Check Before Calibration Section 7 above before Calibration proceeding 2 Press The M200AH enters the calibrate mode for The zero gas CAL 02 ENTR must come in through the sample port Wait for reading to stabilize at zero value 5 Press ZERO If you change your mind after pressing ZERO you can still press EXIT here without zeroing the instrument Press EN
190. y Units w o O Option Only 2 16 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 3 SPECIFICATIONS WARRANTY 3 1 Specifications NOX Specifications O Option Operating Modes NO NO switching mode NO only Paramagnetic Sensor mode NO only mode Ranges In 1 ppm increments from 5 ppm to In 1 increments from 5 to 5000 ppm Single range independent ranges or autoranging 100 Independent of NOx range Noise at zero lt 0 020 ppm RMS 0 05 O Noise at span lt 0 5 of reading RMS above 20 ppm lt 0 1 O Detection Limit Note 1 0 040 ppm 0 1 O Zero Drift Note 2 lt 0 5 full scale 24 hours 0 1 O Zero Drift Note 2 lt 1 0 full scale 7 days 0 1 O Span Drift Note 2 lt 1 FS 24 hours 0 1 O Lag Time lt 4sec Switching Mode 20 sec Note 3 NO mode 4 sec Note 3 Response Time 95 in lt 10 sec Switching Mode 95 in lt 40 sec Note 3 NO mode 95 in lt 10 sec Note 3 Sample Flow Rate Analyzer 370 cc min 10 Including bypass Sample Flow Rate Sensors 40 cc min 10 80 cc min 10 Linearity 1 of full scale 0 1 O Precision 0 5 of reading 0 1 Temperature Range 5 40 C Humidity 0 95 RH non condensing Temp Coefficient lt 0 1 per C lt 0 1 per C Voltage Coefficient lt 0 1 per V lt 0 1 per V Dimensions HxWxD 7 x17 x23 6 18 c
191. yzer software same as power on D RAM RESET Resets analyzer software and erases RAM Erases NO NOx conc values erases all DAS data Keeps setup variables and calibration Same as installing new software version D EE RESET Resets analyzer software and erases RAM and EEPROM Returns all setup variables to factory defaults resets calibration values 5 7 7 DAS Commands and Messages The M200AH 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 performing 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 39 Teledyne API Model 200AH NOx Analyzer Instruction Manual 06492 Rev G2 To print records from a DAS data channel enter D REPORT name RECORDS nnn COMPACT VERBOSE Examples of reports are D REPORT CONC 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

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