Teledyne 9700 Flue Gas Analysis System Maintenance & Troubleshooting, Routine Maintenance

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Flue Gas Analysis System

Maintenance & Troubleshooting 5

Maintenance & Troubleshooting

5.1Maintenance

5.1.1 Routine Maintenance

No moving parts other than the meter movement and the relay con- tacts are contained in the analyzers. Periodic service, therefore, other than oxygen cell replacement, is not required. The periodic calibration con- tained in Sections 4.1 and 4.2 should be adequate to keep the analyzers functioning. If troubles develop, refer to the trouble shooting procedures contained in Section 6.

5.1.2Oxygen Cell Replacement

When the Micro-Fuel Cell nears the end of its useful life, sensitivity will decline very rapidly. The initial response to this phenomenon will be recalibration of the analyzer. If many turns of the SPAN control are re- quired to recalibrate the instrument, or more commonly, the control does not have sufficient range to recalibrate the analyzer, a new Micro-Fuel Cell will be required.

Wipe off contact pins (P/N A-6544) in the probe assembly with a clean tissue before installing the new cell. If, after long service, the contact pins become pitted or worn, they may be replaced by unscrewing the hold- down plate.

To offset the possibility of not having a replacement cell available when it is needed, TBE/AI recommends that a spare cell be ordered shortly after the instrument is placed in service, and each time the cell is replaced thereafter.

TELEDYNE BROWN ENGINEERING

5-1

Analytical Instruments

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Contents Model Flue Gas Analysis System Important Notice WarrantyTable of Contents Maintenance & Troubleshooting Introduction Flue Gas Analysis SystemOverview Sample Conditioning General InformationSample Conditioning Oxygen Analyzer Section Standard FeaturesOxygen Analyzer Section General Information Optional Features General Information Combustible Gas Analyzer Section Combustible Gas Analyzer SectionGeneral Information Compound LEL Response Factor Operating Controls and Indicators Meter Trim Recessed Secondary ControlsAnalog Output Current MAX Load Output Impedance Oxygen Analyzer Theory of OperationTheory of Operation Combustible Analyzer Detector Flue Gas Analysis System Theory of Operation Power InstallationOutput Signal Voltage Electrical ConnectionsInterconnection Diagram Output Signal Current Alarm and/or Control CircuitryInstallation Startup of Oxygen Analyzer OperationPreliminary Meter ZeroingInitial Calibration and Equilibration Flue Gas Analysis System Operational Calibration Routine Operational Calibration ProcedureStartup of Combustibles Analyzer Operation System Startup Span GasAnalyzer Startup Sample System StartupOperation Maintenance Flue Gas Analysis System Maintenance & TroubleshootingRoutine Maintenance Oxygen Cell ReplacementCell Warranty Water Strainer Spray NozzleFilter Condensate Trap Combustible SensorPump TroubleshootingGeneral Oxygen Analyzer .2.2.1 Inability to Calibrate Inability to Calibrate Combustible Analyzer SectionNo Alarm With High Gas Level Lamp Failure Appendix SpecificationsOxygen Analysis Section Appendix ModelModel 9700 System Standard Unit Only Recommended Spare Parts ListReference Drawings Response of Combustible Sensor to Various Gases Appendix Model Supporting Equipment for Flue Gas Analysis Systems Figure A-1 Typical Dry Probe Maintenance General Maintenance for CC-2B Series PumpsRepair Appendix Model Flue Gas Analysis System Figure A-3 Pump Assembly Flue Gas Analysis System Figure A-4 Replacing Flex-I-Liner Replacing the Liner in the Flex-I-Liner PumpFlue Gas Analysis System