Teledyne 3300ZB operating instructions Maintenance, Replacing the Fuse

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Trace Oxygen Analyzer

Maintenance

 

 

 

Maintenance

Aside from normal cleaning and checking for leaks at the gas connections, the Model 3300ZB should not require any maintenance beyond replacement of zirconium oxide sensors, and perhaps a blown fuse. Routine maintenance includes occasional recalibration, as described in Chapter 4 Operation.

5.1 Replacing the Fuse

If a fuse blows, check first to determine the cause, then replace the fuse using the following procedure:

1.Disconnect the AC power and place the power switch located on the rear panel in the O position. Remove the power cord from the receptacle.

2.The fuse receptacle is located in the power cord receptacle assembly in the upper left-hand corner of the rear panel. See Figure 5-1.

Figure 5-1: AC Fuse Replacement

3.Insert a small flat-blade screwdriver into the slot in the receptacle wall nearest the fuse and gently pry open the fuse receptacle. The fuse holder will slide out. The fuse in use is visible in the clip.

Teledyne Analytical Instruments

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Contents Model 3300ZB Model 3300ZB Safety Messages Model 3300ZB Table of Contents Maintenance Front Panel List of FiguresCombustible GAS Usage This page intentionally left blank Page Introduction Main Features of the AnalyzerOverview Front Panel Front Panel Description∙ Measurement Parameters Readout Rear Panel Description Power Connection Principles of Operation Operational TheoryIntroduction Zirconium Oxide SensorsEffect of Pressure ElectronicsGeneral Block Diagram of the Signal Processing Electronics Signal ProcessingOperational Theory Model 3300ZB Unpacking the Analyzer InstallationLocation and Mounting Control Unit InstallationElectrical Connections Rear Panel Electrical Connectors Contact ID for Failsafe Relay Operation Gas Connections Piping Diagram Installation ChecklistOperation Front Panel Controls and IndicatorsSetting the Analysis Ranges Using the Function and Data Entry ButtonsHI Range Setting the Alarm SetpointsHI Alarm LO AlarmSelecting a Fixed Range or Autoranging Sensor Fail AlarmCalibration LED Display on StartUp This page intentionally left blank Replacing the Fuse MaintenanceWhen to Replace a Sensor Sensor Installation or ReplacementZrO2 Sensor and Cell Block This page intentionally left blank Appendix SpecificationsTeledyne Analytical Instruments Spare Parts ListDrawing List