Teledyne OT-3 operating instructions Replacing the Fuse, Trace Oxygen Analyzer Maintenance

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Trace Oxygen Analyzer

Maintenance

 

 

 

Maintenance

Aside from normal cleaning and checking for leaks at the gas connections, the Model OT-3 should not require any maintenance beyond replacement of expended Micro-fuel Cells, and perhaps a blown fuse. Routine maintenance includes occasional recalibration, as described in chapter 4, Operation.

5.1Replacing the Fuse

CAUTION: ON AC UNITS, REMOVE THE POWER TO THE UNIT BEFORE REPLACING THE FUSE.

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

AC Units

1.On AC units, disconnect the power. 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.

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. There are two fuses in use and are visible in the clip.

4.Remove the bad fuse and replace it with a 5x20mm 0.5 A, 250 VAC, IEC time lag (T) fuse (P/N F1130).

5.Replace the fuse holder into its receptacle, pushing in firmly until it clicks.

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Contents Teledyne Analytical Instruments Trace Oxygen AnalyzerCopyright 2000 Teledyne Analytical Instruments Model OT-3Specific Model Information Important Notice Trace Oxygen Analyzer Table of Contents Maintenance OperationAppendix Front Panel List of FiguresTrace Oxygen Analyzer Introduction Main Features of the AnalyzerIntroduction OverviewIntroduction OT-3 Front Panel DescriptionFunction Keys Measurement Parameters Readout Rear Panel DescriptionRear Panel AC Version Micro-fuel Cell Sensor Installation OT-3Operational Theory IntroductionAnatomy of a Micro-fuel Cell Trace Oxygen Analyzer InstallationElectrochemical Reactions Effect of Pressure Calibration CharacteristicsGeneral ElectronicsBlock Diagram of the Signal Processing Electronics Signal ProcessingInstallation OT-3 Unpacking the Analyzer InstallationInstalling the Micro-fuel Cell Location and MountingElectrical Connections Analog Outputs Primary Input PowerContact ID for Failsafe Relay Operation Alarm RelaysRelay Ratings Solid State Relay Output Gas ConnectionsGas Connections Sample System OT-3 Sample System Installation ChecklistInstallation OT-3 Teledyne Analytical Instruments Trace Oxygen Analyzer Operation OperationUsing the Function and Data Entry Buttons Setting the Analysis RangesOperation OT-3 LO Range Setting the Alarm SetpointsSet Alarm HI RangePower Failure Alarm Alarm DelayKeypad Lockout Calibration Selecting a Fixed Range or AutorangingSupplementary Information Displaying Percent & PPM on the LED DisplayOperation OT-3 Maintenance Trace Oxygen Analyzer MaintenanceReplacing the Fuse Sensor Installation or Replacement Maintenance OT-3When to Replace a Sensor Removing the Micro-fuel Cell Ordering and Handling of Spare SensorsInstalling a Micro-fuel Cell Cell Warranty Conditions Specifications AppendixAppendixOT-3 Spare Parts List Trace Oxygen AnalyzerAppendixAnalytical Instruments Reference Drawing MiscellaneousAppendix OT-3 Trace Oxygen Analyzer Index IndexNo Pass Index OT-3Website address Index OT-3 Teledyne Analytical Instruments