Teledyne 7300A manual Infrared Gas Analyzer Maintenance

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Infrared Gas Analyzer

Maintenance 5

 

 

 

 

 

 

 

 

 

5.0 Maintenance

Aside from normal cleaning and checking for leaks at the gas connec- tions, routine maintenance is limited to replacing filter elements and fuses, and recalibration.

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

5.0Replacing the Fuse

Remove Power to Unit before replacing the fuse.

1.Place small screwdriver in notch, and pry cover off, as shown in Figure 5-1.

Figure 5-1: Removing Fuse Block from Housing

2.To change between American and European fuses, remove the single retaining screw, flip Fuse Block over 180 degrees, and replace screw.

3.Replace fuse as shown in Figure 5-2.

Teledyne Analytical Instruments

5-1

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Contents Teledyne Analytical Instruments Model 7300ACopyright 2000 Teledyne Analytical Instruments Model 7300AApplication Impurity of Interest Infrared Gas Analyzer Technician Record SheetModel 7300A Teledyne Analytical Instruments Model 7300A Model 7300A Infrared Gas Analyzer Table of Contents IntroductionInstallation Operation Electrical/Control Unit Modes/Functioning Table of ContentsStart-up and Theory of Operation Appendix MaintenanceInfrared Gas Analyzer Introduction OverviewTypical Gas Applications Introduction Model 7300A Main Features of the AnalyzerGeneral Ndir Analyzer Introduction Model 7300A Teledyne Analytical Instruments Unpacking the Analyzer/Inspection Installing and Connecting the AnalyzerInfrared Gas Analyzer Installation Calibration Gases Installation Model 7300AElectrical Power Connections User ConnectionsVenting the System Infrared Gas Analyzer Installation Pipe ConnectionsElectrical Connections Rear Panel Sample Delivery SystemAnalog Outputs Installation Model 7300A Primary Input PowerFuse Installation 3 50-Pin Equipment Interface ConnectorOutput V dc Output mA dc Pin FunctionExamples Range Voltage Current mA Application Alarm RelaysDigital Remote Cal Inputs Pin ContactRemote Calibration Connections Network I/O Remote Valve ConnectorRange ID Relays FET Series Resistance 4 RS-232 PortGas Requirements Command DescriptionParameter Setting Calibration Testing the SystemCalibration Calibration Fluids Infrared Gas Analyzer Installation Installation Model 7300A Teledyne Analytical Instruments Infrared Gas Analyzer Start-up and Operation PreliminaryNdir Analyzer Startup Initial Set-up and ZeroingStart-up and Theory of Operation Model 7300A Operational CalibrationAnalyzer Theory of operation GeneralBlock Diagram of the Model 7300A Electronics Circuit Description Digital Signal Processing & Electronics Linearizer Linearizer Output Linearizer Input Teledyne Analytical Instruments Page Infrared Gas Analyzer Operation IntroductionMode/Function Selection Using the ControlsAnalysis Mode Operation Model 7300ASetup Mode Setup Mode Escape Data EntryEnter Enter Setting up an AUTO-CALEntering the Password Infrared Gas Analyzer Operation Password ProtectionAAA Installing or Changing the PasswordLogging Out System Self-Diagnostic TestChecking Linearity with Algorithm Model ScreenTroubleshooting information Digital Filter Setup Zero Offset Adjustment CAL-OUT Function Adjst output to 4ma ENT to OK Zero Cal Zero and Span FunctionsAuto Mode Zeroing Cell Failure Manual Mode ZeroingSpan Cal Auto Mode SpanningManual Mode Spanning Installation Alarms FunctionPress enter again to set the alarm setpoints Manual Select/Define Range Screen Range Select FunctionAuto Screen Precautions Illustrates these schemes graphically Analyze FunctionSet Application Screen ProgrammingOFFST/INVRT ENT Checking the linearization Curve Algorithm ScreenManual Mode Linearization Auto Mode Linearization Offset OUTPUT/Reversal Output Output Signal Reversal Special Function SetupPolarity Reversal Output Signal OffsetGain Preset Infrared Gas Analyzer Maintenance MaintenanceFilter Routine MaintenanceMaintenance Model 7300A Ndir Analyzer Measurement Cell System Self Diagnostic TestPreamp PowerMajor Internal Components AnalogCell Assembly Troubleshooting General Trouble Shooting Chart Maintenance Model 7300A Infrared Gas Analyzer Maintenance Maintenance Model 7300A Teledyne Analytical Instruments Infrared Gas Analyzer Appendix Appendix Model 7300A SpecificationsDrawing List Qty Description Recommended 2-Year Spare Parts ListAttachment 7300A Infrared Gas Analyzer Appendix