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Teledyne Model 300EU manual Theory Of Operation, Measurement Method, Auto-Reference Ratio, M300EU

Models: Model 300EU

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10.THEORY OF OPERATION

M300EU	THEORY OF OPERATION
(Addendum to M300EU Manual - P/N 04145)

10.THEORY OF OPERATION

10.1. MEASUREMENT METHOD

The information found in Section 10.1 of the M300E/EM Operators Manual (P/N 04288) is applicable to the M300EU with the following addition. It is recommended that you read that section before continuing.

10.1.1. AUTO-REFERENCE RATIO

The higher resolution of the M300EU makes it more susceptible then the M300E/EM to the effects of a variety of environmental conditions such as:

•Drift related to the age of the optical bench components ( e.g. the IR lamp, the IR detector, etc.)

•Variations in the temperature of the sample gas (affecting it density).

•Interferents, specifically CO2 and H2O.

The M300EU accounts for these issues by adding an additional component to the CO concentration calculation call the Auto-reference ratio.

This ratio is arrived at in the same manner as the measure/reference ratio (described in Section 10.1.3.2 of the M300E/EM Operators Manual) with the difference that that during the measurements that are to calculate the A- REF ratio, the gas stream is switched to pass through a scrubber that completely removes all CO from the sample gas. Therefore the measured difference between CO MEAS and CO REF represents the exact state of the sample gas and the optical bench’s sensors without CO present.

Figure 10-1: M300EU Gas flow during Auto-Reference Measurements

The analyzer averages the last five A-REFratios and multiplies this average by a constant and the result is included in the final CO calculation as a positive or negative offset.

Whenever an A-REFis manually initiated either by using the AREF submenu via the front panel (see Section 6.4.2) or by activating pin-7 of the instrument’s digital control input connector, all previously stored A-REF ratios are erased and the new ratio inserted. This allows the user to correct for a bad A-REF reading (e.g. the oven temperature during the A-REF cycle was too high/low)

05514 Rev A1

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Teledyne Model 300EU manual Theory Of Operation, Measurement Method, Auto-Reference Ratio, M300EU, Rev A1

Contents

MODEL 300EU CO ANALYZER WITH AUTO-REFERENCE ADDENDUM TO M300E/EM MANUAL P/NTELEDYNE INSTRUMENTS ADVANCED POLLUTION INSTRUMENTATION DIVISION TAPI 9480 CARROLL PARK DRIVE SAN DIEGO, CALIFORNIA USAPage USER NOTES SAFETY MESSAGESM300EU GENERAL SAFETY HAZARDM300EU USER NOTES05904 Rev A Addendum to M300E/EM Manual P/NTABLE OF CONTENTS M300EU05904 Rev A LIST OF TABLES LIST OF FIGURESM300EU 05904 Rev AAPPENDIX A-4 Model 300EU Signal I/O Definitions, Revision K.6 LIST OF APPENDICESUSER NOTES M300EUM300EU USER NOTES05904 Rev A Addendum to M300E/EM Manual P/N1.1. REFERENCE NUMBERING CONVENTION 1. INTRODUCTION1.2. M300EU OVERVIEW any time the instrument is in SETUP modeM300EU USER NOTES05904 Rev A Addendum to M300E/EM Manual P/N2.1. SPECIFICATIONS 2. SPECIFICATIONS, APPROVALS AND WARRANTYM300EU Basic Unit Specifications M300EU2.2. EPA EQUIVALENCY DESIGNATION 2.4. WARRANTY2.3. CE MARK COMPLIANCE USER NOTES3.1. UNPACKING THE M300EU 3. GETTING STARTED3.2. M300EU ANALYZER LAYOUT M300EU3.3. ELECTRICAL CONNECTIONS 3.3.1. POWER CONNECTIONM300EU Figure 3-2 M300EU Internal Gas FlowAnalog Output Data Type Default Settings 3.3.2. ANALOG OUTPUT ConnectionsFigure 3-3 M300EU Analog Output Connector M300EUM300EU 3.3.3. CONNECTING THE STATUS OUTPUTSAnalog Output Pin Outs Table 3-3 Status Output Pin Assignments3.4.1. STARTUP AND WARM UP OF THE M300EU 3.4. INITIAL OPERATION OF THE M300EU3.4.2. WARNING MESSAGES MESSAGEM300EU 3.4.3. FUNCTIONAL CHECKThe Test functions available from the front panel of the M300EU are 05831 Rev3.5. INITIAL CALIBRATION 3.5.2. BASIC CO CALIBRATION SETUP3.5.1. PRE-CALIBRATION STABILIZATION 3.5.2.1. Calibration GasesUSER NOTES 3.5.3. BASIC CO CALIBRATION PROCEDUREM300EU STEP 1 - SET LIMITSUSER NOTES 4. FREQENTLY ASKED QUESTIONS & GLOSSARYM300EU 05514 Rev A1M300EU USER NOTES05831 Rev Addendum to M300E/EM Manual P/NOPTION 5. OPTIONAL HARDWARE AND SOFTWAREDESCRIPTION 300E5.1.1. ZERO SPAN VALVES OPT 50A 5.1. CALIBRATION VALVE OPTIONS FOR THE M300EUM300EU TOLL-FREE FAX TEL E-MAIL api-sales@teledyne.comM300EU 5.1.2. ZERO SPAN VALVES WITH IZS OPT 51BSAMPLE CHAMBER ScrubberUSER NOTES 5.1.3. Zero Span Valves with IZS and Shutoff VALVE OPT 51BM300EU 05831 Rev6. M300EU OPERATING INSTRUCTIONS M300EU05514 Rev A1 M300EU 6.2. OPERATING MODESM300EU Operating Modes A-REFSETUP 6.2.1. AUTO-REFERENCE MODE AREFMode Field M300EUUnits 6.2.2. TEST FUNCTIONSM300EU Table 6-2 Test Functions Defined6.3.1. PHYSICAL RANGE VERSUS ANALOG OUTPUT REPORTING RANGES 6.3. SETUP Æ RNGE ANALOG OUTPUT REPORTING RANGE CONFIGURATION6.3.2. ANALOG OUTPUT RANGES FOR CO CONCENTRATION ANALOG OUTM300EU DEFAULT SETTINGSSNGL DUALThis is the default reporting range mode for the analyzer M300EU05514 Rev A1 M300EU To set the ranges press following keystroke sequence05831 Rev M300EU 05514 Rev A1M300EU OPERATING INSTRUCTIONS weight/volume units CO ppb x 1.25 = CO ug/m3 CO ppm x 1.25= CO mg/m3 6.3.6. SETUP Æ RNGE Æ UNIT SETTING THE REPORTING RANGE UNIT TYPEM300EU Pressure STP6.4.1. ADJUSTING THE A-REF MODE CYCLE TIME M300EU05514 Rev A1 M300EU 6.4.2. FORCING AN AUTO-REFERENCE MEASUREMENTTo manually start an auto-reference measurement cycle, press 05831 Rev05514 Rev A1 M300EUM300EU 6.5. SETUP Æ MORE Æ VARS INTERNAL VARIABLES VARSTable 6-3 Test Functions Defined VARIABLEDIAG I/O 6.6. SETUP Æ MORE Æ DIAG USING THE DIAGNOSTICS FUNCTIONSDIAG AOUT DIAG AIO6.7.1. ANALOG I/O CONFIGURATION 6.7. ANALOG OUTPUT CONFIGURATIONTHE ANALOG I/O CONFIGURATION SUBMENU M300EUM300EU 4. Choose a Test Channel parameter to be output on the channel05514 Rev A1 TURNING THE ANALOG OUTPUT OVER-RANGE FEATURE ON/OFF ANALOG OUTPUT SIGNAL TYPE AND RANGE SELECTION6.13.5.7 SETTING THE REPORTING RANGE SCALE FOR AN ANALOG OUTPUT 6.13.5.8 SETTING DATA UPDATE RATE FOR AN ANALOG OUTPUTMANUAL CALIBRATION OF ANALOG OUTPUT CONFIGURED FOR VOLTAGE RANGES 6.7.2. CALIBRATION OF THE ANALOG OUTPUTSM300EU ENABLING OR DISABLING THE AUTO-CAL FOR AN INDIVIDUAL ANALOG OUTPUTM300EU 6.7.3. SELECTING A TEST CHANNEL FUNCTION FOR OUTPUT A4Test Channels Functions Available on the M300EU’s Analog Output TEST CHANNELM300EU 6.7.4. HESSEN PROTOCOLTable 6-7 M300EU Hessen GAS ID List 05514 Rev A1USER NOTES Default Hessen Status Bit AssignmentsM300EU 05831 Revmanual for troubleshooting tips MANUAL CALIBRATION 7. CALIBRATION PROCEDURESM300EU REQUIRED EQUIPMENT, SUPPLIES AND EXPENDABLES7.9.2 CO2 SENSOR CALIBRATION PROCEDURE 7.9.1 SECTION O2 SENSOR CALIBRATION PROCEDUREM300EU MANUAL CALIBRATION WITH ZERO/SPAN VALVESUSER NOTES 8. EPA PROTOCOL CALIBRATIONM300EU 05514 Rev A1M300EU USER NOTES05831 Rev Addendum to M300E/EM Manual P/N9.1. PERFOMING AN AUTO-REFERENCE MEASUREMENT AFTER MAINTENANCE 9. INSTRUMENT MAINTENANCEUSER NOTES M300EUM300EU USER NOTES05831 Rev Addendum to M300E/EM Manual P/NTable 9-1 M300EU Test Function Record M300EUSTABILITY CO MEASM300EU USER NOTES05831 Rev Addendum to M300E/EM Manual P/N10.1. MEASUREMENT METHOD 10. THEORY OF OPERATION10.1.1. AUTO-REFERENCE RATIO M300EU10.2.1. THE A-REF CARBON MONOXIDE SCRUBBER 10.2. PNEUMATIC OPERATIONM300EU Figure 10-2 Auto-Reference Measurement Cycle10.2.3. THE NAFION→ DRYER 10.2.2. THE A-REF VALVE ASSEMBLYM300EU Auto-Reference Valve Operating StatesM300EU The dryer consists of a bundle of 0.030 O.D. Nafion→ tubes housed within a single large tube shell. Sample gas flows within the Nafion tubes while water vapor absorbs into the tubular membrane walls and is removed. Moisture permeating the tubing is carried away by a dry purge gas within the shell that flows countercurrent to the sample gas05831 Rev 10.3.1. OVERVIEW 10.3. ELECTRONIC OPERATIONFigure 10-4 M300EU Electronic Overview Block Diagram M300EU10.3.2. THE RELAY PCA 10.3.2.1. Temperature Control of the Convection OvenFigure 10-5 M300EU Heating Control Block Diagram M300EU115 VAC Configuration 10.3.2.2. Oven Heaters AC Power Configuration230 VAC Configuration Figure 10-6 M300EU Oven Heater Configuration Jumpers10.3.2.3. Status LED’s 10.3.3. MOTHERBOARD10.3.3.1. A to D Conversion 10.3.3.2. Sensor InputsRELAY PCA 10.3.4. POWER DISTRIBUTIONFigure 10-8 M300EU Distribution Block Diagram USER NOTESPage 11.1. GENERAL NOTES 11. TROUBLESHOOTING & REPAIRMAINTENANCE PERSONNEL ONLY PROCEDURESM300EU 11.2. FAULT DIAGNOSIS WITH WARNING MESSAGESWarning Messages - Indicated Failures OVEN TEMPWarning Messages - Indicated Failures cont M300EU05514 Rev A1 Sample flow rate isM300EU 11.2.1. FAULT DIAGNOSIS WITH TEST FUNCTIONSTable 11-2 Test Functions - Indicated Failures table continuedTest Functions - Indicated Failures M300EUINDICATED FAILURES 05514 Rev A1Faulty Oven Temperature Sensor 11.2.2. RELAY BOARD STATUS LED’SFaulty Connectors/Wiring M300EU11.4. OTHER PERFORMANCE PROBLEMS 11.3. GAS FLOW PROBLEMS11.4.1. Unexplained DRIFT M300EU11.5.1. RELAY BOARD 11.5. SUBSYSTEM CHECHOUT11.5.2. MOTHERBOARD 11.5.2.1. A/D FunctionsUSER NOTES 11.6. TECHNICAL ASSISTANCEM300EU 05514 Rev A1M300EU USER NOTES05514 Rev A1 Addendum to M300E/EM Manual P/NAPPENDIX A-2 M300EU Setup Variables Available Via Serial I/O APPENDIX A - Version Specific Software DocumentationAPPENDIX A-4 M300EU Signal I/O Definitions M300EU Addendum to M300E/EM ManualCLR1 TEST1MSG1 M300EU Addendum to M300E/EM Manual Figure A-2 Primary Setup Menu Except iDASAPPENDIX A-1 M300EU Software Menu Trees, Revision K.6 05924 Rev K.6APPENDIX A-1 M300EU Software Menu Trees, Revision K.6 Figure A-3 Primary Setup Menu Æ iDAS SubmenuM300EU Addendum to M300E/EM Manual 05924 Rev K.6M300EU Addendum to M300E/EM Manual Figure A-4 Secondary Setup Menu Æ COMM and VARS SubmenusAPPENDIX A-1 M300EU Software Menu Trees, Revision K.6 05924 Rev K.6APPENDIX A-1 M300EU Software Menu Trees, Revision K.6 Figure A-5 Secondary Setup Menu Æ Hessen Protocol SubmenuM300EU Addendum to M300E/EM Manual 05924 Rev K.6Auto Cal feature is OFF or the range is set for ENTER PASSWORDM300EU Addendum to M300E/EM Manual APPENDIX A-1 M300EU Software Menu Trees, Revision K.6APPENDIX A-2 Setup Variables For Serial I/O, Revision K.6 APPENDIX A-2 Setup Variables For Serial I/O, Revision K.6M300EU Addendum to M300E/EM Manual 05924 Rev K.605924 Rev K.6 M300EU Addendum to M300E/EM ManualTable continues CO2FILTPCTA-10 M300EU Addendum to M300E/EM Manual05924 Rev K.6 O2FILTPCTAPPENDIX A-3 Warnings and Test Functions, Revision K.6 M300EU Addendum to M300E/EM ManualNAME MESSAGE TEXTTable A-5 M300EU Addendum to M300E/EM ManualA-12 05924 Rev K.6Bit or Channel Signal NameDescription NumberM300EU Addendum to M300E/EM Manual OVTMPW Internal box temperature #2/oven warningAPPENDIX A-5 M300EU iDAS Parameters Revision K.6 A-1405924 Rev K.6 M300EU Addendum to M300E/EM ManualA-15 CO2OFSUSER NOTES APPENDIX A-6 Terminal Command Designators, Revision K.6M300EU Addendum to M300E/EM Manual A-16M300EU Addendum to M300E/EM Manual APPENDIX B - M300EU SPARE PARTS & EXPENDABLESAPPENDIX B - M300EU SPARE PARTS & EXPENDABLES European standard ENAPPENDIX B - M300EU SPARE PARTS & EXPENDABLES USER NOTES05925 Rev A M300EU Addendum to M300E/EM Manual