Teledyne M5000B operating instructions Operations/Analysis Unit

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4 Operations/Analysis Unit

period). In this case, nitrogen or dry air (typically-100OF dewpoint or 2ppm water) can be used. Manually switch in the zero offset check from the control unit to operate the zero solenoid flag (depending upon the application, this may or may not simultaneously insert a zero flag into the light path; indeed, 90% of the time it is not needed). The factory zero offset value was set from its best determined factory calibration and was approximately set between 10-20% of the full scale range for the zero. After the field on- line calibration, a zero offset value around a 10-20% meter range should be set, using the potentiometer adjustment located within the analyzer control unit to bring it into the 10-20% range. This may require a short term area declassification (on explosion proof units) in order to make this adjust- ment.

The zero offset adjustment potentiometer is panel-mount located within the control unit. The potentiometer identified (zero- offset) is adjusted while the reproducible zero fluid background is in the sample cell. (This zero check may be automatically or manually operated depending upon the sample system and electronic instrument design). RECORD the zero calibration reading for future reference and agreement checks of the zero stability.

Note the instrument zero reading should typically be between 10-20% of full scale calibrated range (chosen at the factory), This reading should always repeat on nitrogen with the zero offset and/or flag introduced. If not, readjust the instrument fine or coarse zero potentiometer (s) or microprocessor/computer etc., to read the correct concentration value known (determined after the original on- line process calibration).

Span calibration check after performing a process on-line calibration. After zero calibration above.

To check span on the analyzer, immediately back-flush out the process fluid and dry the cell with a reproducible zero fluid that does not contain any of the analyte. In this case, nitrogen or dry air (typically -75 ‘C dew point or less than 1 PPM water) should be used. Manually introduce the span flag from the readout control unit to operate the solenoid containing the appropriate span filter into the light path of the analyzer (this may be automatically or manually operated depending upon the sample system and electronic instru- ment design). RECORD the span calibration reading for future calibration reference of the span sensitivity agreement. The filter span flag is chosen at the factory to represent an upscale reading of typically between 60-90% of the full scale range.

NOTE: The zero or span flag readings should always repeat if the analyzer remains in calibration. Any drift in the zero or span can

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Contents Photometric Analyzer Teledyne Analytical InstrumentsModel 5000B Copyright 1999 Teledyne Analytical InstrumentsTable of Contents IiiModel 5000B Teledyne Analytical Instruments Part I Part I Control UnitOperation InstallationIi Part Maintenance Iv Part Model 5000B Photometric AnalyzerPhotometric Analyzer Part I Control Unit OverviewTypical Applications Introduction Model 5000B Other NIR Absorbers that can be measured consult factory Introduction Model 5000B Main Features of the Analyzer Operator Interface 1 UP/DOWN SwitchESCAPE/ENTER Switch Model 5000B Controls, Indicators, and Connectors Control Section Interface Panel Model 5000B Interface Panel Introduction Model 5000B Installation Unpacking the Control/Analysis UnitPart Primary Input Power Connections 115VACExamples Analog Output ConnectionsAlarm Relays Range Voltage Current mATypes of Relay Contacts The connectors are Part I RS-232 Signals RS-232 Sig RS-232 Pin PurposeParameter Setting Testing the SystemCommand Description Part Operation Photometric Analyzer Operation /Control UnitOperation/Control Unit Hierarchy of System Functions and Subfunctions Setting up an AUTO-CAL System FunctionSelect More and press the Enter Key PasswordProtection Entering the PasswordInstalling or Changing the Password Logging Out System Self-Diagnostic Test Model Screen CheckingLinearitywithALGORITHMDigital Filter Setup Setting 90% Response time secondsFilter or Solenoid Setup Hold/Track Setup Calibration/Hold Timer SetupCalbrt hold 3 min Sample hold 1 min Analog 4 to 20 mA Output CalibrationUse UP/DOWN arrow to Adjust 4 ma 250 ModelZero Cal Auto Mode ZeroingShow Negative Manual Mode Zeroing Cell Failure SccmSpan Cal Auto Mode SpanningManual Mode Spanning How to access the offset function Offset FunctionSelect zero mode Auto Select zero mode MAN Zero off 0.0 ppm ENT to begin ZeroAlarms Function AL1 1ØØØ ppm HI DftN FsN LtchN Range Select Function Manual Select/Define Range ScreenAuto Screen Precautions 2illustratestheseschemesgraphically Analyze Function Set Range Screen Algorithm Application More Curve Algorithm Screen Auto Mode Linearization Fuse Replacement Part I Control Unit/Analysis Unit MaintenanceSystem Self Diagnostic Test Maintenance Model 5000B Photometric AnalyzerPower AnalogPreamp Cell detectorPart Part II Part II Analysis UnitRoutine Maintenance Part II Analysis Unit Appendix Iv Part Operations/Analysis Unit Control Functions Explosion-ProofVersionControlModuleControl Settings Start-pPreliminaryInspection Analyzers not equipped with Auto ZeroPower On Observations Pre-Start-upElectricalCheckoutTeledyneAnalyticalInstruments4-5 StandardizationFluids ProcedureCalibration TeledyneAnalyticalInstruments4-7 Operations/Analysis Unit TeledyneAnalyticalInstruments4-9 Operations/Analysis Unit TeledyneAnalyticalInstruments4-11 Operations/Analysis Unit TeledyneAnalyticalInstruments4-13 Ppm simulated water using Span Zero SampleAttachment 5000B/5020 NIR Analyzer Operations/Analysis Unit Operational Theory Contd Source Module OpticalSystem Sample cellAnalyzerSystem-BlockDiagram Power Module Block Diagram Detectorcompartment Routine Maintenance Part II Maintenance/Analysis UnitSystem Visual Check and Response Procedure Automatic operation and routine operational dutiesSuggested Preventive Maintenance Schedule DailyEquipment Required Oscilloscope Display of the I to E Converter Output Part II Maintenance/Analysis Unit Setup of the Logarithmic Amplifier Inverting AmplifierBattery-Powered Oscilloscope Synchronization Point Interface Board Terminals StripPart Part II Maintenance/Analysis Unit Part Photometric Analyzer, 5000B Appendix SpecificationsOperating Temperature 0-50oC Appendix Models 5000B Other Features Recommended 2-Year Spare Parts List QtyP/NDescriptionDrawing List, 5000B Appendix Models 5000B Teledyne Analytical Instruments