Teledyne M5000B operating instructions Offset Function, How to access the offset function

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3 Operation/Control Unit		Model 5000B

Use the DÑ keys to toggle between AUTO and MAN span settling. Stop when MAN appears, blinking, on the display. Press Enter to move to the next screen.

Span Val: 2Ø.ØØ % <ENT> To begin span

Use the < > arrow keys to toggle between the span concentration value and the units field (%/ppm). Use the DÑ arrow keys change the value and/ or the units, as necessary. When you have set the concentration of the span fluid you are using, press Enter to begin the Span calibration.

Press Enter to enter the span value into the system and begin the span calibration.

Once the span has begun, the microprocessor samples the output at a predetermined rate. It calculates the difference between successive samplings and displays this difference as Slope on the screen. It takes several seconds for the first Slope value to display. Slope indicates rate of change of the Span reading. It is a sensitive indicator of stability.

####.##% SO2 Slope=#.### Span

When the Span value displayed on the screen is sufficiently stable, press Enter. (Generally, when the Span reading changes by 1 % or less of the range being calibrated for a period of ten minutes it is sufficiently stable.) Once Enter is pressed, the Span reading changes to the correct value. The instrument then automatically enters the Analyze function.

3.4.3Offset Function

This software when installed in the 5000BF instruments provides a way to enter an offset on the zero operation of the analyser. This is useful when the instrument is zeroed in some inert fluid such as Nitrogen or Argon, but the background fluid of the process is different. If the background fluid of the process is different than the zero calibration fluid being used, the reading will have an offset that will be constant throughout its working range. Thus, the need to provide an offset when the instrument is being zeroed.

How to access the offset function:

To access this function, the instrument zero mode must be entered by pushing the Zero key on the front panel of the control unit. The VFD display will show the following menu selection:

3-20 Part I

Teledyne Analytical Instruments

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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 UnitInstallation Ii PartOperation Maintenance Iv Part Model 5000B Photometric AnalyzerOverview 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 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 PurposeTesting the System Command DescriptionParameter Setting 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 ModelAuto Mode Zeroing Show NegativeZero Cal Manual Mode Zeroing Cell Failure SccmAuto Mode Spanning Manual Mode SpanningSpan Cal 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 Procedure CalibrationStandardizationFluids 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 Specifications Operating Temperature 0-50oCPhotometric Analyzer, 5000B Appendix Appendix Models 5000B Other Features Recommended 2-Year Spare Parts List QtyP/NDescriptionDrawing List, 5000B Appendix Models 5000B Teledyne Analytical Instruments