Teledyne Percent Oxygen Analyzer Operational Theory Model 9060L, Model 9060L Oxygen Probe

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Operational Theory

Model 9060L

 

 

 

All Teledyne oxygen probe or sensors are designed and manufactured to exacting standards of performance and reliability and are the result of extensive research and development. Teledyne Analytical Instruments provides worldwide application and after sales support for its oxygen probes, sensors and analyzers.

Figure 2-1: Model 9060L Oxygen Probe

The probe assembly provides a means of exposing the zirconia

sensor to the atmosphere to be measured with sensor. It also provides for means of interfacing the sensor, thermocouple and heater wires with the control unit. Reference air is fed via the top plug for unheated probes or by a separate gas thread connection for heated probes. Connections are provided on probes for an in-situ gas calibration check. If required, an air purge can be admitted via the calibration gas check entry. The outer sheath of probes is either metal or ceramic, depending on the application. Calibration check can be achieved on 9060LEX sensors using a three way solenoid which blocks the sample and at the same time admits a calibration gas to the sensor. As mentioned above, probe purging for removing any dust build up can be achieved in the same way.

In-situ zirconia oxygen probes will give a lower oxygen reading than a sampled gas measurement on a chromatograph or paramagnetic analyzer because the flue gas contains a significant level of water vapor and a sampling system removes the water vapor through condensation. The oxygen content then appears as a higher percentage of the remaining gas. For example: If the gas contained five parts oxygen and fifteen parts moisture, removing the moisture would leave the oxygen at 5.88%. This phenomena will depend on the fuel and the completeness of combustion. They are common to all zirconia oxygen sensors.

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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 Maintenance OperationAppendix Index Teledyne Analytical InstrumentsList of Figures Front PanelList of Tables Combustible GAS Usage Main Features of the Analyzer IntroductionOverview Percent Oxygen Analyzer IntroductionFront Panel Description Introduction Model 9060LRear Panel Description SpanRear Panel Operational Theory IntroductionOxygen Probe, Sensor, and Heater Percent Oxygen Analyzer Operational TheoryOperational Theory Model 9060L Model 9060L Oxygen ProbeProbe Configuration Probe OptionsZirconia Sensor Internal Structure of the Zirconia Sensor and ProbeHeater Applications Not at Atmospheric Pressure Sensor ImpedanceElectronics GeneralSignal Processing Signal Processing Block DiagramOperational Theory Model 9060L Installation Control Unit Installation9060L Oxygen Probe 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 OperationSetting the Analysis Ranges Using the Function and Data Entry ButtonsOperation Model 9060L Setting the Alarm Setpoints Set Alarm 1 HI alarmHI Range LO RangeSensor Fail Alarm Set Alarm 2 LO alarmSelecting a Fixed Range or Autoranging Oxygen Calibration Span CalibrationOperation Model 9060L Supplementary Information Probe TemperatureAir Calibration Low Temperature Error MessagesOpen Thermocouple Percent Oxygen Analyzer Operation Operation Model 9060L Teledyne Analytical Instruments Percent Oxygen Analyzer Maintenance MaintenanceReplacing the Fuse Maintenance Model 9060L Specifications AppendixProbe Specifications Appendix Model 9060LEmail asktai@teledyne.com Spare Parts ListAnalytical Instruments Probe or Sensor EMF Tables Reference DrawingZirconia Oxygen Sensor Output mV Percent Oxygen Analyzer Appendix Model 9060L Teledyne Analytical Instruments Index Index Model 9060L Percent Oxygen Analyzer