Teledyne 3000PA Routine Maintenance, Cell Replacement, Percent Oxygen Analyzer Maintenance

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Percent Oxygen Analyzer		Maintenance 5

Maintenance

5.1Routine Maintenance

Aside from normal cleaning and checking for leaks at the gas connec- tions, routine maintenance is limited to replacing Micro-Fuel cells and fuses, and recalibration. For recalibration, see Section 4.4 Calibration.

WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS MANUAL.

5.2Cell Replacement

The Micro-Fuel Cell is a sealed electrochemical transducer with no electrolyte to change or electrodes to clean. When the cell reaches the end of its useful life, it is replaced. The spent fuel cell should be discarded according to local regulations. This section describes fuel cell care as well as when and how to replace it.

5.2.1 Storing and Handling Replacement Cells

To have a replacement cell available when it is needed, TAI recom- mends that one spare cell be purchased 4-5 months after commissioning the 3000PA, or shortly before the end of the cell warranty period.

CAUTION: Do not stockpile cells. The warranty period starts on the day of shipment.

The spare cell should be carefully stored in an area that is not subject to large variations in ambient temperature (75 °F nominal) or to rough handling.

WARNING: THE SENSOR USED IN THE MODEL 3000PA PER- CENT OXYGEN ANALYZER USES ELECTROLYTES WHICH CONTAIN TOXIC SUBSTANCES, MAINLY

Teledyne Analytical Instruments

5-1

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Contents Model 3000PA Teledyne Analytical Instruments Model 3000PAIii Percent Oxygen Analyzer Specific Model InformationInstrument Serial Number Includes the following options Operation Model 3000PA Table of Contents IntroductionInstallation OperationalTheoryMaintenance Percent Oxygen AnalyzerAppendix Combustible GAS Usage Warning Percent Oxygen Analyzer Introduction Main Features of the AnalyzerOverview Typical ApplicationsIntroduction Model 3000PA Model DesignationsModel 3000PA Front Panel Front Panel Operator InterfaceIntroduction Model 3000PA Recognizing Difference Between LCD Rear Panel Equipment InterfaceAnalog Outputs Optional RS-232 PortRemote Probe NetworkPrinciples of Operation Operational Theory IntroductionMicro-Fuel Cell Sensor Percent Oxygen Analyzer Operational TheoryAnatomy of a Micro-Fuel Cell Operational Theory Model 3000PA+ 2H O + 4e → 4OH Electrochemical ReactionsEffect of Pressure Calibration CharacteristicsMicro-Fuel Cell Class Class A-3 CellClass A-5 Cell Class B-3 Cell Hydrogen and/or Helium ServiceSample System Class B-1 CellPiping Layout and Flow Diagram for Standard Model Span Zero Sample Electronics and Signal ProcessingBlock Diagram of the Model 3000P Electronics Operational Theory Model 3000PA Percent Oxygen Analyzer Installation Unpacking the AnalyzerMounting the Analyzer Rear Panel Connections Installation Model 3000PARear Panel of the Model 3000PA Gas ConnectionsElectrical Connections Percent Oxygen Analyzer Installation Teledyne Analytical Instruments Percent Oxygen Analyzer Installation Command Description Remote Probe Connector Parameter SettingTesting the System Installing the Micro-Fuel CellAuto Ranging on Percent Oxygen Analyzer OperationOperation Model 3000PA Using the Data Entry and Function ButtonsHierarchy of Functions and Subfunctions System FunctionSetting the Display Password Protection Percent Oxygen Analyzer Operation Setting up an Auto-CalEntering the Password Installing or Changing the Password Logout Version Screen Cell Failure Span FunctionsSpan Cal Auto Mode SpanningManual Mode Spanning Alarms FunctionInstallation AL-1 AL-2 Choose Alarm Range Function Setting the Analog Output RangesFixed Range Analysis Operation Model 3000PA Autoranging AnalysisSignal Output Voltage Signal Current Signal Output V dc Output mA dcAnalyze Function Range Voltage Current mA Storing and Handling Replacement Cells Routine MaintenanceCell Replacement Percent Oxygen Analyzer MaintenanceWhen to Replace a Cell Maintenance Model 3000PRemoving the Micro-Fuel Cell IndexRemoving or Installing a Micro-Fuel Cell Cell Warranty System Self Diagnostic Test Fuse ReplacementPreamp PowerMajor Internal Components AnalogRear-Panel Screws CleaningTroubleshooting SolutionPossible Cause Maintenance Model 3000P Teledyne Analytical Instruments Percent Oxygen Analyzer Appendix Model 3000PA SpecificationsAppendix Model 3000PA Qty Part Number Description Recommended 2-Year Spare Parts List19-inch Relay Rack Panel Mount Drawing ListSeries Analyzers Calibration GAS Conversions Zero Cal ZeroSettlingMan ENT To Begin