Teledyne 3020T operating instructions Power, Analog, Preamp

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Trace Oxygen Analyzer		Maintenance 5

Table 5-1: Self Test Failure Codes

Power

0OK

15 V Failure

215 V Failure

3Both Failed

Analog

0OK

1DAC A (0–1 V Concentration)

2DAC B (0–1 V Range ID)

3Both Failed

Preamp

0OK

1Zero too high

2Amplifier output doesn't match test input

3Both Failed

Teledyne Analytical Instruments

5-9

Image 65

Contents Teledyne Analytical Instruments Model 3020TCopyright 1999 Teledyne Analytical Instruments Model 3020TIii Trace Oxygen AnalyzerSpecific Model Information 3020T-IOperational Theory Table of Contents IntroductionInstallation Operation MaintenanceAppendix Trace Oxygen Analyzer Introduction Main Features of the AnalyzerOverview Typical ApplicationsModel 3020T Model DesignationsTrace Oxygen Analyzer Introduction Operator Interface Model 3020T Controls, Indicators, and ConnectorsPWD 1 UP/DOWN SwitchESCAPE/ENTER Switch Recognizing Difference Between LCD Electrical Connector PanelEquipment Interface DisplaysRemote Valves RS-232 PortNetwork I/O Gas Connector PanelRemote Sensor Optional Principles of Operation Operational Theory IntroductionMicro-Fuel Cell Sensor Anatomy of a Micro-Fuel Cell Operational Theory+ 2H 2O + 4e → 4OH Electrochemical ReactionsEffect of Pressure Calibration CharacteristicsSample System Characteristic Input/Output Curve for a Micro-Fuel CellSpan Zero Sample Electronics and Signal ProcessingBlock Diagram of the Model 3020T Electronics Temperature Control Mounting the Analyzer Trace Oxygen Analyzer InstallationUnpacking the Analyzer Front View of the Model 3020T Simplified Required Front Door Clearance Electrical ConnectionsAnalog Outputs Primary Input PowerFuse Installation Analog Output Connections ExamplesRange Voltage Current mA Alarm RelaysTypes of Relay Contacts Digital Remote Cal InputsZero Network I/O Range ID Relays8 RS-232 Port RS-232 Sig RS-232 Pin PurposeRemote Sensor and Solenoid Valves Command DescriptionParameter Setting Remote Solenoid Return Connector Pinouts Installing the Micro-Fuel CellGas Connections Gas Connector Panel Testing the System Auto Ranging on Using the ControlsTrace Oxygen Analyzer Operation Mode/Function Selection Analysis ModeSetup Mode Trace Oxygen Analyzer Escape Data EntryEnter Trace Oxygen Analyzer Operation AUTO-CALFunction PWD Password FunctionEntering the Password Only one password can be definedInstalling or Changing the Password Version Screen Logout FunctionZero and Span Functions Trace Oxygen Analyzer Operation SELF-TESTFunctionZero Cal Auto Mode ZeroingManual Mode Zeroing Span Cal Auto Mode SpanningCell Failure Manual Mode Spanning Installation Alarms FunctionAL-1 AL-2 Choose Alarm Range Function Setting the Analog Output RangesFixed Range Analysis Standby Function Contrast FunctionAnalysis Mode Operation Major Internal Components Trace Oxygen Analyzer MaintenanceRoutine Maintenance Major Internal Components Cell ReplacementWhen to Replace a Cell Storing and Handling Replacement CellsRemoving the Micro-Fuel Cell Exploded View of Cell Block and Micro-Fuel Cell Installing a New Micro-Fuel Cell L-2C cell is not designed for applications where CO2 is a Fuse ReplacementCell Warranty Removing Fuse Cap and Fuse from Holder System Self Diagnostic TestPreamp PowerAnalog Maintenance Trace Oxygen Analyzer Appendix SpecificationsOperating Temperature 0-50 C Qty Part Number Description Recommended 2-Year Spare Parts ListDrawing List Series Analyzers Restrictor KIT Conversions