Teledyne M5000B Select zero mode Auto Select zero mode MAN, Zero off 0.0 ppm ENT to begin Zero

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Photometric Analyzer

Operation /Control Unit 3

 

 

 

 

 

 

 

 

 

Select zero mode: AUTO

or

Select zero mode: MAN

Select whether you want the instrument to do an automatic or manual zero. If you do an automatic zero, the instrument does the zero by itself. If you do a manual zero you must manually enter inputs to the instrument to accomplish the zero, see in the corresponding section of the manual on how these two functions differ.

When the Enter key is pressed, the following menu will appear:

Zero off: 0.0 ppm <ENT> to begin Zero

The offset value can be modified by using the Up/Down keys. Next section shows how to select this value. Suffice to say that whatever value you enter, will be automatically added to the reading. Thus, if you entered -0.1 ppm, at the end of the zero the display will show -0.1 ppm.

Once the Enter key is pressed the instrument enters the zero mode. If you chose AUTO zero mode, the instrument will do the work of bringing the reading back to zero plus the offset value that was entered. If you chose MANual zero mode, then you must enter input to the instrument as explained in the corresponding section of the manual but with one difference: instead of bringing the display to read zero, you must make the display read zero plus the value entered as offset.

How the offset value is selected:

To find out what the offset value should be, the intended zero calibration fluid and the a mix of the process background fluid must be procured. This of course assumes that the zero fluid and the process background fluid are very different and that an offset will occur.

1.Let the intended zero calibration fluid flow through the 5000BF sample cell (this assumes that you have started up you system as recommended by the manual or technical personnel) and do a zero on the instrument. Leave the offset set to zero value.

2.At the end of the zero function, make sure the analyser reads zero.

3.Flow a zero level of the process background fluid mix through the 5000BF sample cell on the Analyse mode. Wait for the reading to become stable. Write the reading down. Change the sign of the reading: This is the

Teledyne Analytical Instruments

Part I 3-21

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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 IIi Part InstallationOperation Maintenance Model 5000B Photometric Analyzer Iv PartTypical Applications OverviewPhotometric 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 ESCAPE/ENTER Switch 1 UP/DOWN 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 SignalsCommand Description Testing the SystemParameter 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 250Show Negative Auto Mode ZeroingZero Cal Manual Mode Zeroing Sccm Cell FailureManual Mode Spanning Auto 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 Calibration ProcedureStandardizationFluids 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 Operating Temperature 0-50oC SpecificationsPhotometric Analyzer, 5000B Appendix Appendix Models 5000B Other Features QtyP/NDescription Recommended 2-Year Spare Parts ListDrawing List, 5000B Appendix Models 5000B Teledyne Analytical Instruments