Teledyne 3000PA Percent Oxygen Analyzer Operation Setting up an Auto-Cal, Password Protection

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Percent Oxygen Analyzer

Operation 4

 

 

 

 

 

 

 

 

 

4.3.2 Setting up an Auto-Cal

When proper automatic valving is connected (see chapter 3, installa- tion), the Analyzer can cycle itself through a sequence of steps that automati- cally zero and span the instrument.

Note: If you require highly accurate Auto-Cal timing, use external Auto-Cal control where possible. The internal clock in the Model 3000PA is accurate to 2-3 %. Accordingly, internally scheduled calibrations can vary 2-3 % per day.

To setup an Auto–Calcycle:

Choose System from the Function buttons. The VFD will display five subfunctions.

Contrast Function is DISABLED

Contrast Auto—Cal

(Refer to Section 1.6)

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Use < > arrows to blink Auto— Cal, and press Enter. A new screen for Span/Zero set appears.

Span OFF Nxt: 0d 0h

Zero OFF Nxt: 0d 0h

Press < > arrows to blink Span (or Zero), then press Enter again. (You won’t be able to set OFF to ON if a zero interval is entered.) A Span Every ... (or Zero Every ...) screen appears.

Span Every 0 d

Start 0 h from now

Use ∆∇ arrows to set an interval value, then use < > arrows to move to the start-time value. Use ∆∇ arrows to set a start-time value.

To turn ON the Span and/or Zero cycles (to activate Auto-Cal): Press System again, choose Auto— Cal, and press Enter again. When the Span/ Zero screen appears, use the < > arrows to blink the Span (or Zero) OFF/ ON field. Use ∆∇ arrows to set the OFF/ON field to ON. You can now turn these fields ON because there is a nonzero span interval defined.

4.3.3 Password Protection

If a password is assigned, then setting the following system parameters can be done only after the password is entered: span and zero settings, alarm setpoints, analysis range definitions, switching between autoranging and manual override, setting up an auto-cal, and assigning a new password. However, the instrument can still be used for analysis or for initiating a self- test without entering the password.

Teledyne Analytical Instruments

4-5

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Contents Model 3000PA Teledyne Analytical Instruments Model 3000PAPercent Oxygen Analyzer Specific Model Information IiiInstrument Serial Number Includes the following options Installation Model 3000PA Table of Contents IntroductionOperationalTheory OperationPercent Oxygen Analyzer MaintenanceAppendix Combustible GAS Usage Warning Overview Main Features of the AnalyzerTypical Applications Percent Oxygen Analyzer IntroductionIntroduction Model 3000PA Model DesignationsModel 3000PA Front Panel Front Panel Operator InterfaceIntroduction Model 3000PA Rear Panel Equipment Interface Recognizing Difference Between LCDAnalog Outputs Remote Probe RS-232 PortNetwork OptionalMicro-Fuel Cell Sensor Operational Theory IntroductionPercent Oxygen Analyzer Operational Theory Principles of OperationAnatomy of a Micro-Fuel Cell Operational Theory Model 3000PA+ 2H O + 4e → 4OH Electrochemical ReactionsEffect of Pressure Calibration CharacteristicsClass A-3 Cell Micro-Fuel Cell ClassClass A-5 Cell Sample System Hydrogen and/or Helium ServiceClass B-1 Cell Class B-3 CellPiping Layout and Flow Diagram for Standard Model Span Zero Sample Electronics and Signal ProcessingBlock Diagram of the Model 3000P Electronics Operational Theory Model 3000PA Unpacking the Analyzer Percent Oxygen Analyzer InstallationMounting the Analyzer Rear Panel Connections Installation Model 3000PARear Panel of the Model 3000PA Gas ConnectionsElectrical Connections Percent Oxygen Analyzer Installation Teledyne Analytical Instruments Percent Oxygen Analyzer Installation Command Description Remote Probe Connector Parameter SettingTesting the System Installing the Micro-Fuel CellAuto Ranging on Percent Oxygen Analyzer OperationOperation Model 3000PA Using the Data Entry and Function ButtonsHierarchy of Functions and Subfunctions System FunctionSetting the Display Password Protection Percent Oxygen Analyzer Operation Setting up an Auto-CalEntering the Password Installing or Changing the Password Logout Version Screen Cell Failure Span FunctionsSpan Cal Auto Mode SpanningManual Mode Spanning Alarms FunctionInstallation AL-1 AL-2 Choose Alarm Range Function Setting the Analog Output RangesFixed Range Analysis Operation Model 3000PA Autoranging AnalysisVoltage Signal Current Signal Output V dc Output mA dc Signal OutputAnalyze Function Range Voltage Current mA Cell Replacement Routine MaintenancePercent Oxygen Analyzer Maintenance Storing and Handling Replacement CellsWhen to Replace a Cell Maintenance Model 3000PRemoving the Micro-Fuel Cell IndexRemoving or Installing a Micro-Fuel Cell Cell Warranty System Self Diagnostic Test Fuse ReplacementMajor Internal Components PowerAnalog PreampRear-Panel Screws CleaningSolution TroubleshootingPossible Cause Maintenance Model 3000P Teledyne Analytical Instruments Percent Oxygen Analyzer Appendix Model 3000PA SpecificationsAppendix Model 3000PA Qty Part Number Description Recommended 2-Year Spare Parts List19-inch Relay Rack Panel Mount Drawing ListSeries Analyzers Calibration GAS Conversions Zero Cal ZeroSettlingMan ENT To Begin