Teledyne Sensor Installation or Replacement, Maintenance Model 3190Z, DC Powered Units

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Maintenance

Model 3190Z

 

 

 

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.

To open the spare fuse compartment, push on one end until it slides out.

4.Remove the bad fuse and replace it with a 5×20 mm 0.5 A, 250 VAC, IEC, time lag (T) fuse (P/N F1128) for AC units.

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

5.1.2DC Powered Units

In units with DC power, the fuse is located on the rear panel above the ON/OFF switch.

1.Open the fuse holder by unscrewing and removing the cap marked FUSE.

2.The fuse is located inside the receptacle, not inside the cap. Both terminals are on the same end of the fuse. Pull straight out without twisting to remove the old fuse from the receptacle, and replace it with a 0.5 A, 125 VDC, very quick acting (FF) Microfuse (P/N F51).

3.Replace the cap by screwing it back into the receptacle.

5.2Sensor Installation or Replacement

5.2.1 When to Replace a Sensor

The sensors used in this product will typically last five years or longer in service. Typically, the sensors will fail either high or low. Inaccurate or erratic readings are a sign that one of the sensors may have failed. In most cases, we recommend the entire unit be returned to an authorized Teledyne Service Center for sensor replacement.

Teledyne Analytical Instruments

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Contents Trace Oxygen Analyzer Teledyne Analytical InstrumentsModel 3190Z Copyright 2009 Teledyne Instruments/ Analytical InstrumentsSafety Messages Model 3190Z Table of Contents Maintenance Combustible GAS Usage Viii Main Features of the Analyzer IntroductionOverview Trace Oxygen Analyzer IntroductionSpan Front Panel DescriptionIntroduction Model 3190Z Measurement Parameters Readout Rear Panel DescriptionMeter Readout ƒ Power Connection Rear Panel AC and DC versionsAlarm Page Operational Theory IntroductionZirconium Oxide Sensors Trace Oxygen Analyzer Operational TheoryElectronics Operational Theory Model 3190ZEffect of Pressure GeneralSignal Processing Block Diagram of the Signal Processing ElectronicsOperational Theory Model 3190Z Unpacking the Analyzer InstallationTrace Oxygen Analyzer Installation Installation Model 3190Z Control Unit InstallationExternal Probe Installation Location and MountingPower switch is located below the fuse receptacle Rear Panel Electrical Connectors for AC and DC Units Contact ID for Failsafe Relay Operation Installation Checklist Gas ConnectionsOperation Trace Oxygen Analyzer OperationOperation Model 3190Z Using the Function and Data Entry ButtonsSetting the Analysis Ranges Setting the Alarm Setpoints HI AlarmLO Alarm HI RangeSensor Fail Alarm ProcedureSelecting a Fixed Range or Autoranging CalibrationLED Display on StartUp Page Maintenance Trace Oxygen Analyzer MaintenanceAC Powered Units Replacing the FuseSensor Installation or Replacement Maintenance Model 3190ZDC Powered Units When to Replace a SensorSpecifications AppendixTrace Oxygen Analyzer Appendix Range ID 0-10 VDCSpare Parts List Appendix Model 3190ZDrawing List Miscellaneous