Teledyne manual Routine Maintenance, Filter, Maintenance Model 7300A

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5 Maintenance

Model 7300A

 

 

 

 

 

 

 

 

 

4. Reassemble Housing as shown in Figure 5-1.

American Fuses

European Fuses

Figure 5-2: Installing Fuses

5.1Routine Maintenance

The 7300A should be inspected on a regular schedule to be determined by the maintenance personnel. The system filter and analyzer measurement cell should be maintained as required by the quality of the sample.

Periodic calibration of the system will assure accurate analysis of the sample gas and will also indicate the need for maintenance. A regular calibration schedule should include recording of the zero and span pot values for performance trends. Clogging of the sample system and other system problems will usually show early symptoms during online analysis or during calibration.

Problems with the system not due to the normal processing of the sample are sometimes failures which must be corrected.

5.2 Filter

The system filter element (if included) should also be periodically inspected. Replacement is recommended when the element begins to restrict sample flow or upon visual inspection looks clogged and dirty.

NOTE: Although not normally included on basic Model 7300A analyzers, input protection filtering is always recom- mended. Refer to the system piping schematic for recom- mended hook-up.

5-2

Teledyne Analytical Instruments

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Contents Model 7300A Teledyne Analytical InstrumentsModel 7300A Copyright 2000 Teledyne Analytical InstrumentsInfrared Gas Analyzer Technician Record Sheet Application Impurity of InterestModel 7300A Teledyne Analytical Instruments Model 7300A Table of Contents Introduction InstallationModel 7300A Infrared Gas Analyzer Table of Contents Start-up and Theory of OperationOperation Electrical/Control Unit Modes/Functioning Maintenance AppendixOverview Typical Gas ApplicationsInfrared Gas Analyzer Introduction Main Features of the Analyzer GeneralIntroduction Model 7300A Ndir Analyzer Introduction Model 7300A Teledyne Analytical Instruments Installing and Connecting the Analyzer Infrared Gas Analyzer InstallationUnpacking the Analyzer/Inspection Installation Model 7300A Electrical Power ConnectionsUser Connections Calibration GasesInfrared Gas Analyzer Installation Pipe Connections Electrical Connections Rear PanelSample Delivery System Venting the SystemInstallation Model 7300A Primary Input Power Fuse Installation3 50-Pin Equipment Interface Connector Analog OutputsPin Function ExamplesOutput V dc Output mA dc Alarm Relays Range Voltage Current mA ApplicationPin Contact Digital Remote Cal InputsRemote Calibration Connections Remote Valve Connector Range ID RelaysNetwork I/O 4 RS-232 Port FET Series ResistanceCommand Description Parameter SettingGas Requirements Testing the System Calibration Calibration FluidsCalibration Infrared Gas Analyzer Installation Installation Model 7300A Teledyne Analytical Instruments Preliminary Ndir Analyzer StartupInitial Set-up and Zeroing Infrared Gas Analyzer Start-up and OperationOperational Calibration Start-up and Theory of Operation Model 7300ATheory of operation General AnalyzerBlock Diagram of the Model 7300A Electronics Circuit Description Digital Signal Processing & Electronics Linearizer Linearizer Output Linearizer Input Teledyne Analytical Instruments Page Introduction Infrared Gas Analyzer OperationUsing the Controls Analysis ModeOperation Model 7300A Mode/Function SelectionSetup Mode Setup Mode Data Entry EnterEscape Setting up an AUTO-CAL EnterInfrared Gas Analyzer Operation Password Protection Entering the PasswordInstalling or Changing the Password AAASystem Self-Diagnostic Test Logging OutModel Screen Checking Linearity with AlgorithmTroubleshooting information Digital Filter Setup Zero Offset Adjustment CAL-OUT Function Adjst output to 4ma ENT to OK Zero and Span Functions Zero CalAuto Mode Zeroing Manual Mode Zeroing Cell FailureAuto Mode Spanning Span CalManual Mode Spanning Alarms Function InstallationPress enter again to set the alarm setpoints Range Select Function Manual Select/Define Range ScreenAuto Screen Precautions Analyze Function Illustrates these schemes graphicallyProgramming Set Application ScreenOFFST/INVRT ENT Curve Algorithm Screen Checking the linearizationManual Mode Linearization Auto Mode Linearization Special Function Setup Offset OUTPUT/Reversal Output Output Signal ReversalOutput Signal Offset Polarity ReversalGain Preset Maintenance Infrared Gas Analyzer MaintenanceRoutine Maintenance Maintenance Model 7300AFilter System Self Diagnostic Test Ndir Analyzer Measurement CellPower Major Internal ComponentsAnalog PreampCell Assembly Troubleshooting General Trouble Shooting Chart Maintenance Model 7300A Infrared Gas Analyzer Maintenance Maintenance Model 7300A Teledyne Analytical Instruments Infrared Gas Analyzer Appendix Specifications Drawing ListAppendix Model 7300A Recommended 2-Year Spare Parts List Qty DescriptionAttachment 7300A Infrared Gas Analyzer Appendix