Teledyne 3300TB operating instructions Sensor Fail Alarm

Page 28

4 Operation

Model 3300TB

 

 

 

 

 

 

 

 

 

until the display reads the desired percent concentration. (if within 5 seconds no key is pressed, the instrument will return to the sample mode and display oxygen concentration).

After setting the value wait for the unit to time out of this mode (ap- proximately 5 seconds) and return to displaying oxygen concentration.

4.4.2 Set Alarm 2

Alarm 2 can be set either as a high or low alarm. To configure this alarm to your preferences:

1.Press the SET ALARM 2 function button once.

2.The display will flash either HI or LO depending on what the alarm was configured in the last time. If the alarm configuration must be changed, use the Up or Down keys to toggle the alarm from HI to LO or viceversa (if within 5 seconds no key is pressed, the instrument will return to the sample mode and display oxygen concentration).

3.To change the setting at which the alarm will be actuated, press the SET ALARM 2 function button once more. The alarm setpoint will flash on the LED display. Press either the Up or Down keys to raise or lower the displayed value, as required, until the display reads the desired percent concentration. (if within 5 seconds no key is pressed, the instrument will return to the sample mode and display oxygen concentration)

After setting the value wait for the unit to time out of this mode (ap- proximately 5 seconds) and return to displaying oxygen concentration.

4.4.3 Sensor Fail Alarm

The SENSOR FAIL alarm triggers if, during calibration, the raw cell output for the given oxygen level is too low. (See Calibration Characteris- tics in Chapter 2.). Should this alarm trigger, the ALARM indicator below the SET function buttons will start blinking. Replace the cell before pro- ceeding.

4-4

Teledyne Analytical Instruments

Image 28
Contents Model 3300TB Copyright 1999 Teledyne Analytical Instruments Contents Maintenance AppendixProtective Earth Combustible GAS Usage Warning Introduction Overview Main Features of the AnalyzerTrace Oxygen Analyzer Introduction Front Panel Description Set AlarmIntroduction Model 3300TB Rear Panel Description Rear PanelAnalog Outputs RS-232 PortOperational Theory Introduction Micro-Fuel Cell SensorTrace Oxygen Analyzer Operational Theory Principles of OperationOperational Theory Model 3300TB Anatomy of a Micro-Fuel CellElectrochemical Reactions Effect of PressureCalibration Characteristics Characteristic Input/Output Curve for a Micro-Fuel CellElectronics Signal ProcessingGeneral Operational Theory Model 3300TB Trace Oxygen Analyzer Installation InstallationUnpacking the Analyzer Installation Model 3300TB Control Unit InstallationInstalling the Micro-Fuel Cell / Cell Block Orientation Location and MountingElectrical Connectors for AC Control Unit Electrical ConnectionsContact ID for Failsafe Relay Operation Alarm #1 Alarm #2Gas Connections Sensor FailInstallation Model 3300TB Vacuum Service Option Piping Diagram for Vacuum Service OptionInstallation Checklist Installation Model 3300TB Operation Introduction Trace Oxygen Analyzer OperationSetting the Analysis Ranges Using the Function and Data Entry ButtonsOperation Model 3300TB Setting the Alarm Setpoints Set AlarmTrace Oxygen Analyzer Operation HI Range LO RangeSensor Fail Alarm Selecting a Fixed Range or Autoranging CalibrationSupplementary Information Displaying Percent & PPM on the LED DisplayOperation Model 3300 TB Maintenance Trace Oxygen Analyzer MaintenanceRemove Power to Unit before replacing the fuse Replacing the FuseSensor Installation or Replacement Maintenance Model 3300TBWhen to Replace a Sensor Ordering and Handling of Spare SensorsRemoving the Micro-Fuel Cell Exploded View of MFC and Cell BlockDisconnect the Power Source from the Control Unit Installing a Micro-Fuel CellCell Warranty Conditions Trace Oxygen Analyzer Maintenance Maintenance Model 3300TB Appendix Specifications Trace Oxygen Analyzer AppendixSpare Parts List Appendix Model 3300TBReference Drawing MiscellaneousAppendix Model 3300TB Material Safety Data Sheet Signs/symptoms of exposure Primary route of entryExposure limits Osha PEL Effects of overexposure IngestionProtective measures Disposal