Teledyne Percent Oxygen Analyzer, 9060L Error Messages, Low Temperature, Open Thermocouple

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Operation

Model 9060L

 

 

 

Within the time the temperature is being displayed, one can use the UP and DOWN arrow keys to adjust the temperature, thus recalibrating the temperature readout.

WARNING: TEMPERATURE READING IS CALIBRATED AT THE FACTORY. DO NOT ATTEMPT RECALIBRATION OF THE PROBE TEMPERATURE. ERROR OF A FEW DEGREES WOULD HAVE LITTLE IMPACT ON THE OXYGEN CALCULATIONS, BUT IF THE PROBE IS GROSSLY MISCALIBRATED IT WILL HAVE AN ADVERSE EFFECT ON THE OXYGEN READOUT. ONLY QUALIFIED PERSONNEL SHOULD RE- CALIBRATE TEMPERATURE.

4.8.1 Low Temperature

For the zirconia sensor to operate properly the temperature of the probe must be above 650 degrees Centigrade. While the temperature is below this threshold, the red LED alternates showing “t-Lo”and the oxygen concentration.

4.8.2 Open Thermocouple

The electronics checks if the thermocouple (TC) is open. If it detects that the TC is open the Sensor failure contacts will go into alarming position. Red LED display may alternate between oxygen concentration and the error code “-02-”. Refer to Section 4.9 for information on Error Codes.

4.9 Error Messages

The instrument will display an error code when it detects a malfunction or error condition. The possible codes and common causes are listed below:

-01-This message indicates that there is possible failure on the Analog to Digital Converter, ADC. This may happen when the micro-controller cannot communicate with the ADC. In this state, the oxygen reading is unreliable.

-02-This message is displayed when the input voltage to the ADC rises above the upper limit of the ADC. This could occur if the probe is exposed to zero oxygen concentration, making the

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Contents Model 9060L Teledyne Analytical InstrumentsModel 9060L Copyright 2005 Teledyne Instruments/ Analytical InstrumentsSpecific Model Information Percent Oxygen AnalyzerSafety Messages Percent Oxygen Analyzer Table of Contents Appendix MaintenanceOperation Index Teledyne Analytical InstrumentsList of Figures Front PanelList of Tables Combustible GAS Usage Overview Main Features of the AnalyzerIntroduction Percent Oxygen Analyzer IntroductionFront Panel Description Introduction Model 9060LRear Panel Description SpanRear Panel Oxygen Probe, Sensor, and Heater Operational TheoryIntroduction Percent Oxygen Analyzer Operational TheoryOperational Theory Model 9060L Model 9060L Oxygen ProbeProbe Configuration Probe OptionsZirconia Sensor Internal Structure of the Zirconia Sensor and ProbeHeater Electronics Applications Not at Atmospheric PressureSensor Impedance GeneralSignal Processing Signal Processing Block DiagramOperational Theory Model 9060L 9060L Oxygen Probe Installation InstallationControl Unit Installation Percent Oxygen Analyzer InstallationInstallation Model 9060L Primary Input Power Electrical ConnectionsAlarm Relays Analog OutputsAlarm #2 Oxygen Probe Connections 4Model 9060L Heated Probe Cable ConnectionInstallation Checklist Connections to ProbeInstallation Model 9060L Teledyne Analytical Instruments Operation Percent Oxygen Analyzer OperationOperation Model 9060L Using the Function and Data Entry ButtonsSetting the Analysis Ranges HI Range Setting the Alarm SetpointsSet Alarm 1 HI alarm LO RangeSelecting a Fixed Range or Autoranging Set Alarm 2 LO alarmSensor Fail Alarm Oxygen Calibration Span CalibrationOperation Model 9060L Air Calibration Probe TemperatureSupplementary Information Open Thermocouple Error MessagesLow Temperature Percent Oxygen Analyzer Operation Operation Model 9060L Teledyne Analytical Instruments Replacing the Fuse MaintenancePercent Oxygen Analyzer Maintenance Maintenance Model 9060L Specifications AppendixProbe Specifications Appendix Model 9060LAnalytical Instruments Spare Parts ListEmail asktai@teledyne.com Zirconia Oxygen Sensor Output mV Reference DrawingProbe or Sensor EMF Tables Percent Oxygen Analyzer Appendix Model 9060L Teledyne Analytical Instruments Index Index Model 9060L Percent Oxygen Analyzer