Teledyne operating instructions Operation Model 3000PA, Range Voltage Current mA

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4 Operation		Model 3000PA

The analog output signal has a voltage which depends on the oxygen concentration AND the currently activated analysis range. To relate the signal output to the actual concentration, it is necessary to know what range the instrument is currently on, especially when the analyzer is in the autoranging mode.

To provide an indication of the range, a second pair of analog output terminals are used. They generate a steady preset voltage (or current if you have current outputs) to represent a particular range. The following table gives the range ID output for each analysis range:

Range	Voltage (V)	Current (mA)
LO	0.25	8
MED	0.50	12
HI	0.75	16
CAL (0-25%)	1.00	20

4-18	Teledyne Analytical Instruments

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Contents Model 3000PA Model 3000PA Teledyne Analytical InstrumentsInstrument Serial Number Includes the following options IiiPercent Oxygen Analyzer Specific Model Information OperationalTheory Model 3000PA Table of Contents IntroductionInstallation OperationAppendix MaintenancePercent Oxygen Analyzer Combustible GAS Usage Warning Typical Applications Main Features of the AnalyzerOverview Percent Oxygen Analyzer IntroductionModel Designations Introduction Model 3000PAFront Panel Operator Interface Model 3000PA Front PanelIntroduction Model 3000PA Analog Outputs Recognizing Difference Between LCDRear Panel Equipment Interface Network RS-232 PortRemote Probe OptionalPercent Oxygen Analyzer Operational Theory Operational Theory IntroductionMicro-Fuel Cell Sensor Principles of OperationOperational Theory Model 3000PA Anatomy of a Micro-Fuel CellElectrochemical Reactions + 2H O + 4e → 4OHCalibration Characteristics Effect of PressureClass A-5 Cell Micro-Fuel Cell ClassClass A-3 Cell Class B-1 Cell Hydrogen and/or Helium ServiceSample System Class B-3 CellPiping Layout and Flow Diagram for Standard Model Electronics and Signal Processing Span Zero SampleBlock Diagram of the Model 3000P Electronics Operational Theory Model 3000PA Mounting the Analyzer Percent Oxygen Analyzer InstallationUnpacking the Analyzer Installation Model 3000PA Rear Panel ConnectionsGas Connections Rear Panel of the Model 3000PAElectrical Connections Percent Oxygen Analyzer Installation Teledyne Analytical Instruments Percent Oxygen Analyzer Installation Command Description Parameter Setting Remote Probe ConnectorInstalling the Micro-Fuel Cell Testing the SystemPercent Oxygen Analyzer Operation Auto Ranging onUsing the Data Entry and Function Buttons Operation Model 3000PASystem Function Hierarchy of Functions and SubfunctionsSetting the Display Percent Oxygen Analyzer Operation Setting up an Auto-Cal Password ProtectionEntering the Password Installing or Changing the Password Logout Version Screen Span Functions Cell FailureAuto Mode Spanning Span CalAlarms Function Manual Mode SpanningInstallation AL-1 AL-2 Choose Alarm Setting the Analog Output Ranges Range FunctionOperation Model 3000PA Autoranging Analysis Fixed Range AnalysisAnalyze Function Signal OutputVoltage Signal Current Signal Output V dc Output mA dc Range Voltage Current mA Percent Oxygen Analyzer Maintenance Routine MaintenanceCell Replacement Storing and Handling Replacement CellsMaintenance Model 3000P When to Replace a CellIndex Removing the Micro-Fuel CellRemoving or Installing a Micro-Fuel Cell Cell Warranty Fuse Replacement System Self Diagnostic TestAnalog PowerMajor Internal Components PreampCleaning Rear-Panel ScrewsPossible Cause TroubleshootingSolution Maintenance Model 3000P Teledyne Analytical Instruments Model 3000PA Specifications Percent Oxygen Analyzer AppendixAppendix Model 3000PA Recommended 2-Year Spare Parts List Qty Part Number DescriptionDrawing List 19-inch Relay Rack Panel MountSeries Analyzers Calibration GAS Conversions Zero Cal ZeroSettlingMan ENT To Begin