Teledyne 3190 manual Displaying Percent & PPM on the LED Display, Procedure

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Trace Oxygen Analyzer

Operation 4

 

 

 

 

 

 

 

 

 

Procedure:

1.Expose the sensor to ambient air or instrument grade air (20.9 % oxygen). Allow time for the sampling system to purge and the analyzer to achieve equilibrium.

Note: If the analyzer output goes above the high alarm setpoint or below the low alarm setpoint, the front panel ALARM Indica- tor, beneath the SET Function buttons, will blink. When the SPAN key is pressed to enter SPAN mode, Alarm indicator stops blinking.

2.Press the SPAN button once.

3.Within 5 seconds press either the or button until the display is stable and reads 20.9 %.

The unit is now calibrated.

Note: If you use a span gas other than air, do not span in the 0-10 ppm range. Calibration at this level is not dependable.

Note: If you use a span gas other than air, and the span gas oxygen concentration is less than 10,000 ppm, the analyzer could take up to 65 seconds to to settle. The lag is caused by a digital filter that is active only below 10,000 ppm (1%) oxygen.

If the output of the sensor as measured by the 3190 outside of the expected range due either to:

a)Bad electrical connection between the unit and the sensor,

b)Improperly analyzed or entered calibration gas value,

c)Electronics failure

The unit will not accept the calibration attemped and flash 5000 on the LED display unit a valid calibration has been performed.

4.7Displaying Percent & PPM on the LED Display

The analyzer displays the concentration in percent whenever the read- ing is over 9999 ppm. When the reading changes to percent, the LED display will alternate between flashing “PC” and the oxygen concentration. On the other hand, if the instrument is displaying ppm, only the concentra- tion reading will be shown.

Teledyne Analytical Instruments

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Contents Teledyne Analytical Instruments Model 3190 SeriesCopyright 1999 Teledyne Analytical Instruments Specific Model Information Contents Appendix MaintenanceTeledyne Analytical Instruments Trace Oxygen Analyzer Introduction Main Features of the AnalyzerIntroduction OverviewIntroduction Model Front Panel DescriptionUp Arrow Rear Panel DescriptionRear Panel AC and DC versions Analog OutputsRS-232 Port Introduction Model Teledyne Analytical Instruments Trace Oxygen Analyzer Operational Theory Operational TheoryIntroduction Micro-Fuel Cell SensorAnatomy of a Micro-Fuel Cell Operational Theory Model+ 2H 2O + 4e → 4OH Electrochemical ReactionsEffect of Pressure Calibration CharacteristicsElectronics Signal ProcessingGeneral Block Diagram of the Signal Processing Electronics Trace Oxygen Analyzer Installation InstallationUnpacking the Analyzer Location and Mounting Installation ModelControl Unit Installation External Probe InstallationElectrical Connections Installing the Micro-Fuel Cell / Cell Block OrientationRear Panel Electrical Connectors for AC and DC Units Trace Oxygen Analyzer Installation Sensor Fail HI AlarmLO Alarm Parameter SettingGas Connections Installation ChecklistInstallation Model Teledyne Analytical Instruments Operation Using the Function and Data EntryTrace Oxygen Analyzer Operation Buttons Setting the Analysis RangesOperation Model Trace Oxygen Analyzer Operation HI Range Setting the Alarm SetpointsSettle Mode HI AlarmCalibration LO AlarmSensor Fail Alarm Selecting a Fixed Range or AutorangingDisplaying Percent & PPM on the LED Display ProcedureSetL mode in the LED display Replacing the Fuse MaintenanceTrace Oxygen Analyzer Maintenance AC Powered UnitsWhen to Replace a Sensor Sensor Installation or ReplacementMaintenance Model DC Powered UnitsRemoving the Micro-Fuel Cell Disconnect the Power Source at the Control UnitExploded View of MFC and Cell Block Installing a Micro-Fuel CellCell Warranty Conditions Disconnect the Power Source from the Control UnitMaintenance Model Teledyne Analytical Instruments Trace Oxygen Analyzer Appendix Appendix SpecificationsAppendix Model Spare Parts ListMiscellaneous Drawing ListAppendix Model Teledyne Analytical Instruments