Teledyne 3000PA operating instructions Electronics and Signal Processing, Span Zero Sample

Page 20

2 Operational Theory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Model 3000PA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Span In

Zero In

Sample In

In vacuum service the restrictor should be placed here .

Solenoid

Valves

In normal service the restrictor should be placed here .

Components in the shaded area are in the -C option (internal control valves) only and are not shown in the piping diagram above.

Cell

Flowmeter

Exhaust Out

Restrictor

Figure 2-5: Flow Diagram

2.4Electronics and Signal Processing

The Model 3000P Percent Oxygen Analyzer uses an 8031 microcon- troller with 32 kB of RAM and 128 kB of ROM to control all signal pro- cessing, input/output, and display functions for the analyzer. System power is supplied from a universal power supply module designed to be compatible with any international power source. Figure 2-6 shows the location of the power supply and the main electronic PC boards.

Figure 2-6: Location of Electronic Components

2-8

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 Model 3000PA Table of Contents Introduction InstallationOperationalTheory OperationAppendix MaintenancePercent Oxygen Analyzer Combustible GAS Usage Warning Main Features of the Analyzer OverviewTypical Applications 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 RS-232 Port Remote ProbeNetwork OptionalOperational Theory Introduction Micro-Fuel Cell SensorPercent Oxygen Analyzer Operational Theory 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 Hydrogen and/or Helium Service Sample SystemClass B-1 Cell 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 Routine Maintenance Cell ReplacementPercent Oxygen Analyzer Maintenance 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 TestPower Major Internal ComponentsAnalog 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