Teledyne Trace Oxygen Analyzer, 3000TA-XL-EU operating instructions Troubleshooting, Solution

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5 Maintenance

Model 3000TA-XL-EU

 

 

 

 

 

 

 

 

 

5.7Troubleshooting

Problem:

Erratic readings of the Oxygen concentration as reported by the analyzer.

Possible Cause:

The analyzer may have been calibrated in an inaccurate fashion.

Solution:

Turn the analyzer off, then turn back on again. Press the System key when prompted by the analyzer "Press System for default Values". This will return the analyzer to its default settings in calibration and zero values. If erratic behavior continues clean sensor contacts or replace the sensor.

Possible Cause:

Atmospheric Oxygen may be diffusing in through the vent and affecting the oxygen level which the sensor sees.

Solution:

Increase flow rate and/or length or vent tubing in order to dilute or minimize the diffusion of oxygen from the vent back to the sensor.

Problem:

Inaccurate zero operation (i.e. the user has zeroed the analyzer accidentally on gas much higher than one would normally use for a zero gas).

Solution:

Turn the analyzer off, then back on again. Press the System key when prompted by the analyzer "Press System for default Values". This will return the analyzer to its default settings in calibration and zero values. Now proceed to carefully calibrate and zero the analyzer.

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Teledyne Analytical Instruments

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Contents Trace Oxygen Analyzer Teledyne Analytical InstrumentsModel 3000TA-XL-EU Copyright 1999 Teledyne Analytical InstrumentsIii Trace Oxygen Analyzer Specific Model InformationGround Protective Earth Teledyne Analytical InstrumentsOperational Theory Trace Oxygen Analyzer Table of Contents IntroductionInstallation OperationMaintenance AppendixVii Trace Oxygen Analyzer AppendixCombustible GAS Usage Warning ViiiTypical Applications Main Features of the AnalyzerOverview Trace Oxygen Analyzer IntroductionModel Designations Introduction Model 3000TA-XL-EUFront Panel Operator Interface Model 3000TA-XL Front PanelIntroduction Model 3000TA-XL-EU Rear Panel Equipment Interface Analog OutputsRS-232 Port Remote ProbeNetwork I/O Trace Oxygen Analyzer Operational Theory Operational Theory IntroductionMicro-Fuel Cell Sensor Principles of OperationOperational Theory Model 3000TA-XL-EU Anatomy of a Micro-Fuel CellElectrochemical Reactions + 2H 2O + 4e → 4OHCalibration Characteristics Effect of PressureCharacteristic Input/Output Curve for a Micro-Fuel Cell Sample SystemTOP Flow Diagram-Sample Under Pressure Standard Model Electronics and Signal Processing Electronic Component Location Inside the Model 3000TA-XLBlock Diagram of the Model 3000TA-XL Electronics Operational Theory Model 3000TA-XL-EU Trace Oxygen Analyzer Installation Unpacking the AnalyzerMounting the Analyzer Installation Model 3000TA-XL-EU Rear Panel ConnectionsGas Connections Rear Panel of the Model 3000TA-XLPrimaryInputPower 2.2 50-Pin Equipment Interface ConnectorElectrical Connections Equipment Interface Connector Pin Arrangement Pin FunctionPin Contact Remote Calibration Connections Range ID Relay Connections 2.3 RS-232 Port FET Series ResistanceCommand Description Parameter SettingInstalling the Micro-Fuel Cell Testing the SystemRemoving the Micro-Fuel Cell Trace Oxygen Analyzer Operation Auto Ranging onUsing the Data Entry and Function Buttons Operation Model 3000TA-XL-EUSystem Function Analyze SystemOperation Model 3000TA-XL-EU Setting up an Auto-Cal Password Protection Entering the Password Installing or Changing the Password System Self-Diagnostic Test LogoutVersion Screen Air Calibration Calibration of the AnalyzerSpan Gas Calibration Zero CalAuto Mode Zeroing Manual Mode ZeroingCell Failure Auto Mode Spanning Operation Model 3000TA-XL-EU Span CalManual Mode Spanning Switching of Sample Streams Span FailureAlarms Function Special Notes on Hydrogen Gas StreamAL-1 AL-2 Choose Alarm Range Function Setting the Analog Output Ranges Fixed Range AnalysisSignal Output Analyze FunctionRange Voltage Current mA MEDTrace Oxygen Analyzer Maintenance Routine MaintenanceCell Replacement Storing and Handling Replacement CellsMaintenance Model 3000TA-XL-EU When to Replace a Cell Removing the Micro-Fuel CellRemoving the Micro-Fuel Cell Warranty Fuse Replacement Removing Fuse Block from HousingSystem Self Diagnostic Test Maintenance Model 3000TA-XL-EUMajor Internal Components Cleaning Rear-Panel ScrewsTroubleshooting SolutionSpecifications Operating Temperature 5-35 C AppendixRecommended 2-Year Spare Parts List Drawing List 19-inch Relay Rack Panel Mount3000XL Series Analyzers Conversions Page Material Safety Data Sheet Section IV Fire and Explosion Hazard Data Protective measures during cell replacement ExposureSection Viii Control Measures Read completely before beginning the procedure
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