Teledyne M5000B operating instructions Equipment Required

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Part II: Maintenance/Analysis Unit		Maintenance 5

5.5Service Procedures and Adjustments

5.5.1 Electronics

TAI aligns the system’s electronics. However, you may need to touch up the circuitry, using the following procedure.

Equipment Required:

Oscilloscope (dual trace is preferred, but not required) To observe oscilloscope test points switch the vertical input selector of the scope to DC.

Switch to AC to observe the demodulator switch signals.

DVM (Digital Voltmeter)

PC Board Extender

Use the PC board extender whenever you need to adjust trimpot. Because all PC board connectors are keyed to avoid wrong positioning in the connectors, you must remove the key and after testing you need to replace the key with long-nosed pliers. Turn off the power during this operation. Never disconnectorconnectthePCboardswiththepoweron,becauseyoumaydamage the PC board C-MOS devices.

5.5.2 Power Supply Test Points

Measure+15volt±1voltDCand-15volt±1voltDConthedifferentialpower supplyPCboardinthecontrolunit. Refertothepowersupplyschematicintheback of the manual to identify the power supply test points.

5.5.3Setup of the Signal Processing Front-End Amplifiers

Fill the sample cell with air or a stable fluid, such that the photo energy that strikes the detector is constant. A stable fluid is distilled or tap water. This step may be omitted when the system is stable in its present state.

Teledyne Analytical Instruments

Part II: 5-3

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Contents Teledyne Analytical Instruments Photometric AnalyzerCopyright 1999 Teledyne Analytical Instruments Model 5000BIii Table of ContentsModel 5000B Teledyne Analytical Instruments Part I Control Unit Part IInstallation Ii PartOperation Maintenance Model 5000B Photometric Analyzer Iv PartOverview Typical ApplicationsPhotometric Analyzer Part I Control Unit Introduction Model 5000B Other NIR Absorbers that can be measured consult factory Introduction Model 5000B Main Features of the Analyzer 1 UP/DOWN Switch ESCAPE/ENTER SwitchOperator Interface Model 5000B Controls, Indicators, and Connectors Control Section Interface Panel Model 5000B Interface Panel Introduction Model 5000B Unpacking the Control/Analysis Unit InstallationPart 115VAC Primary Input Power ConnectionsAnalog Output Connections ExamplesRange Voltage Current mA Alarm RelaysTypes of Relay Contacts The connectors are Part I RS-232 Sig RS-232 Pin Purpose RS-232 SignalsTesting the System Command DescriptionParameter Setting Part Photometric Analyzer Operation /Control Unit OperationOperation/Control Unit Hierarchy of System Functions and Subfunctions System Function Setting up an AUTO-CALSelect More and press the Enter Key Entering the Password PasswordProtectionInstalling or Changing the Password Logging Out System Self-Diagnostic Test CheckingLinearitywithALGORITHM Model ScreenSetting 90% Response time seconds Digital Filter SetupFilter or Solenoid Setup Calibration/Hold Timer Setup Hold/Track SetupAnalog 4 to 20 mA Output Calibration Calbrt hold 3 min Sample hold 1 minModel Use UP/DOWN arrow to Adjust 4 ma 250Auto Mode Zeroing Show NegativeZero Cal Manual Mode Zeroing Sccm Cell FailureAuto Mode Spanning Manual Mode SpanningSpan Cal Offset Function How to access the offset functionZero off 0.0 ppm ENT to begin Zero Select zero mode Auto Select zero mode MANAlarms Function AL1 1ØØØ ppm HI DftN FsN LtchN Manual Select/Define Range Screen Range Select FunctionAuto Screen Precautions 2illustratestheseschemesgraphically Analyze Function Set Range Screen Algorithm Application More Curve Algorithm Screen Auto Mode Linearization Part I Control Unit/Analysis Unit Maintenance Fuse ReplacementMaintenance Model 5000B Photometric Analyzer System Self Diagnostic TestPower AnalogCell detector PreampPart Part II Analysis Unit Part IIRoutine Maintenance Part II Analysis Unit Appendix Iv Part Operations/Analysis Unit Explosion-ProofVersionControlModule Control FunctionsStart-p Control SettingsPreliminaryInspection Analyzers not equipped with Auto ZeroPre-Start-upElectricalCheckout Power On ObservationsTeledyneAnalyticalInstruments4-5 Procedure CalibrationStandardizationFluids TeledyneAnalyticalInstruments4-7 Operations/Analysis Unit TeledyneAnalyticalInstruments4-9 Operations/Analysis Unit TeledyneAnalyticalInstruments4-11 Operations/Analysis Unit TeledyneAnalyticalInstruments4-13 Ppm simulated water using Sample Span ZeroAttachment 5000B/5020 NIR Analyzer Operations/Analysis Unit Operational Theory Contd Source Module Sample cell OpticalSystemAnalyzerSystem-BlockDiagram Power Module Block Diagram Detectorcompartment Part II Maintenance/Analysis Unit Routine MaintenanceSystem Visual Check and Response Procedure Automatic operation and routine operational dutiesDaily Suggested Preventive Maintenance ScheduleEquipment Required Oscilloscope Display of the I to E Converter Output Part II Maintenance/Analysis Unit Inverting Amplifier Setup of the Logarithmic AmplifierInterface Board Terminals Strip Battery-Powered Oscilloscope Synchronization PointPart Part II Maintenance/Analysis Unit Part Specifications Operating Temperature 0-50oCPhotometric Analyzer, 5000B Appendix Appendix Models 5000B Other Features QtyP/NDescription Recommended 2-Year Spare Parts ListDrawing List, 5000B Appendix Models 5000B Teledyne Analytical Instruments