Teledyne 3000TA-XL-EU Sample System, Characteristic Input/Output Curve for a Micro-Fuel Cell

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Trace Oxygen Analyzer							Operational Theory 2

Figure 2-3. Characteristic Input/Output Curve for a Micro-Fuel Cell

2.3Sample System

The sample system delivers gases to the Micro-Fuel Cell sensor from the analyzer rear panel inlet. Depending on the mode of operation either sample or calibration gas is delivered.

The Model 3000TA-XL sample system is designed and fabricated to ensure that the oxygen concentration of the gas is not altered as it travels through the sample system.

The sample system for the standard instrument incorporates VCR tube fittings for sample inlet and 1/4"outlet tube connections at the rear panel. The sample or calibration gas that flows through the system is monitored by a flowmeter downstream from the cell. Figure 2-4 shows the piping layout and flow diagram for the standard model.

Teledyne Analytical Instruments

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Contents Teledyne Analytical Instruments Trace Oxygen AnalyzerCopyright 1999 Teledyne Analytical Instruments Model 3000TA-XL-EUTrace Oxygen Analyzer Specific Model Information IiiProtective Earth Teledyne Analytical Instruments GroundOperation Trace Oxygen Analyzer Table of Contents IntroductionInstallation Operational TheoryAppendix MaintenanceTrace Oxygen Analyzer Appendix ViiViii Combustible GAS Usage WarningTrace Oxygen Analyzer Introduction Main Features of the AnalyzerOverview Typical ApplicationsIntroduction Model 3000TA-XL-EU Model DesignationsModel 3000TA-XL Front Panel Front Panel Operator InterfaceIntroduction Model 3000TA-XL-EU Analog Outputs Rear Panel Equipment InterfaceRemote Probe RS-232 PortNetwork I/O Principles of Operation Operational Theory IntroductionMicro-Fuel Cell Sensor Trace Oxygen Analyzer Operational TheoryAnatomy of a Micro-Fuel Cell Operational Theory Model 3000TA-XL-EU+ 2H 2O + 4e → 4OH Electrochemical ReactionsEffect of Pressure Calibration CharacteristicsSample System Characteristic Input/Output Curve for a Micro-Fuel CellTOP Flow Diagram-Sample Under Pressure Standard Model Electronic Component Location Inside the Model 3000TA-XL Electronics and Signal ProcessingBlock Diagram of the Model 3000TA-XL Electronics Operational Theory Model 3000TA-XL-EU Unpacking the Analyzer Trace Oxygen Analyzer InstallationMounting the Analyzer Rear Panel Connections Installation Model 3000TA-XL-EURear Panel of the Model 3000TA-XL Gas Connections2.2 50-Pin Equipment Interface Connector PrimaryInputPowerElectrical Connections Pin Function Equipment Interface Connector Pin ArrangementPin Contact Remote Calibration Connections Range ID Relay Connections FET Series Resistance 2.3 RS-232 PortParameter Setting Command DescriptionTesting the System Installing the Micro-Fuel CellRemoving the Micro-Fuel Cell Auto Ranging on Trace Oxygen Analyzer OperationOperation Model 3000TA-XL-EU Using the Data Entry and Function ButtonsAnalyze System System FunctionOperation Model 3000TA-XL-EU Setting up an Auto-Cal Password Protection Entering the Password Installing or Changing the Password Logout System Self-Diagnostic TestVersion Screen Zero Cal Calibration of the AnalyzerSpan Gas Calibration Air CalibrationManual Mode Zeroing Auto Mode ZeroingCell Failure Operation Model 3000TA-XL-EU Span Cal Auto Mode SpanningManual Mode Spanning Span Failure Switching of Sample StreamsSpecial Notes on Hydrogen Gas Stream Alarms FunctionAL-1 AL-2 Choose Alarm Range Function Fixed Range Analysis Setting the Analog Output RangesAnalyze Function Signal OutputMED Range Voltage Current mAStoring and Handling Replacement Cells Routine MaintenanceCell Replacement Trace Oxygen Analyzer MaintenanceRemoving the Micro-Fuel Cell Maintenance Model 3000TA-XL-EU When to Replace a CellRemoving the Micro-Fuel Cell Warranty Removing Fuse Block from Housing Fuse ReplacementMaintenance Model 3000TA-XL-EU System Self Diagnostic TestMajor Internal Components Rear-Panel Screws CleaningSolution TroubleshootingSpecifications Appendix Operating Temperature 5-35 CRecommended 2-Year Spare Parts List 19-inch Relay Rack Panel Mount Drawing List3000XL Series Analyzers Conversions Page Material Safety Data Sheet Section IV Fire and Explosion Hazard Data Exposure Protective measures during cell replacementSection Viii Control Measures Read completely before beginning the procedure

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