Main Menu, Measurement Menu, Measurement Displays | Fluke 35040

Appendix

Operation Instructions B

ADC

Current Overrange

Reduce exposure and

Press RESET/MEASURE

Cause: The input current has exceeded the 1.200 uA limit.

Action: Stop the exposure. Change the setup to reduce the current.

Explanation: The instrument has a 1.000 uA limit on measurable current and will continue to measure charge for currents up to 1.200 uA. The instrument can accept an input current up to 3 mA without damage to the instrument.

B.7 Customization

The screens shown in this section represent the appearance of the Customization software running within a MS-DOS® window running on Windows® 95/98.

B.7.1 The Main Menu

The Main menu appears after customization information has been received from the Model 35040 Therapy Dosimeter. The menu items are Ion Chambers, Special Items, Measurement, Bias Settings, Print, and Exit.

B.7.2 The Measurement Menu

The Measurement menu provides items Displays, Timer Intervals, and Quit. Select Displays to view the Measurement Displays, Timer Intervals to view the Measurement Timer Intervals, or Quit to return to the Main menu.

Measurement Displays

The Model 35040 Therapy Dosimeter can contain up to sixteen (16) measurement displays, which are viewed from the Measurement screen. From the Measurement Displays section of the Customization software, you may customize the appearance of any of the measurement displays. All measurement displays must show the annunciators on the first line. You may choose what appears on the other three lines

B-13

Image 89

Fluke 35040 manual Main Menu, Measurement Menu, Measurement Displays

Contents

Therapy Dosimeter 35040 Fluke Biomedical Table of Contents Sample Customization Reports Troubleshooting and ServiceAddendum Features of Firmware Version 27JAN00 or Later Iii Blank Introduction FeaturesIntroduction Operators Manual Before You Start Safety PrecautionsSafety Symbols And Terms Factory Calibration Error Source ± %rdg SpecificationsMaximum Error Manual Addenda Full Scale Range Display Resolution Full Scale Range Display Resolution Noise ± countsTimed Charge Measurements Current Measurements General Measurements SpecificationsEffective Exposure Time Measurements High Performance Power Supply and Battery Charger Unpacking and Inspection 35040 Functional Description Hardware Block Diagram of the Model 35040 Therapy Dosimeter Front Panel Power SupplyMicroController Serial Communications Port Electrometer Basic Operating EquationsBias Supply Multiplexer and A/D Converter QExposure Quantity Description Units CommentsQAccum QAccumprevious = time of electrometer conversion s Charge and Current MeasurementsLeakage Measurements Timed Charge and Dose Exposure Charge and Dose Predicted Timed Charge and Dose Setting ThresholdsAccumulated Charge and Dose Exposure Current and Rate DoseRate = I a × Iccf Units/C × Adcf × RateMultiplier s Exposure Time Mm Hg = inch Hg x Air Density Correction Factor⎝ P Units Display Minimum Maximum Standard Resolution Error Setup SetupFront Panel Familiarization Introduction Rear Panel Familiarization Powering The System Ion Chamber Connector Power-Up Self-Test and Display Messages Making Non-Timed Exposure Measurements Basic Measurement TechniquesGeneral Considerations 3Making Timed Exposure Measurements Timer SetupTimer Use Using Other Ion Chambers Battery Care Battery Care PowerOperation Instructions Front Panel Controls Powering Up the Model 35040 Therapy Dosimeter Operation Instructions Powering Down the Model 35040 Therapy DosimeterUsing the Test Function Button QScaleFactor=1.0000 IScaleFactor=1.0000 5Automatic Leakage Compensation 12. The Test Function Screen Showing the Timer Settings Calibrated by Keithley RMD Nov 15 17. The Test Function Screen Showing the Timer Settings 6Timer Setup Using the AIR Density Button Using the Detector Select Button Using the Bias Select Button Using the Units Select Button Set 300.0 V 100% Central Electrde Pos IC Bias 300.0 V CEP Overranging Conditions Using the RESET/MEASURE Button Condition Values Overranged Reset ErrorOverrange Conditions Annunciators Reset Error With Automatic Leakage Compensation EnabledAnnunciators Annunciator Condition Indicator Measurement Condition Measurement Indicators and Conditions? left of value Condition Overranged Measurement Customization Installing/Uninstalling Customization SoftwareConnection to the Computer Starting the Customization Software COM Port Drop Down List DownloadingMenu Items and Controls File Save AS and File Print Ion ChambersClose or File Close Edit Special Items OK and Cancel 36. The Special Items Menu Calibration Temperature has focus Download and Cancel Measurement Displays Display Line Operators Manual Available Display Lines Display Line Group Selection Using the APPEND, DELETE, and Insert ButtonsSelecting an Item and Placing It Changing a Line on a Display 38. The Timer Intervals Form Timer Intervals 39. The Bias Settings Form Bias Settings Examples Customizing a Measurement Display Changing the Pressure UnitsAppending a Display Deleting a Display Errors Troubleshooting Troubleshooting and Service Symptom ??Bias annunciator displayed Symptom Display does not light up when Power is pressedSymptom HiBias annunciator displayed Symptom LoBias annunciator displayed Symptom Configuration Error displayed Symptom Internal Reset Error displayedBit Description Action Do not make Symptom Dashes displayed instead of digits Symptom Current Overrange DisplayedSymptom Bias voltage measurement changes by one digit Measurements. Return Example 299.9 to Display Will Not Light Hours? Is the battery voltage greater than 5.9 volts? Low Battery Line Bias ErrorGo to Model 35040 Therapy Dosimeter Fuse Replacement Line Fuse Replacement Replaceable Parts Information Interface Connector CleaningCleaning The Instrument Replaceable Parts List Warranty InformationRecalibration, Repair Information & Technical Assistance Replaceable Parts Information Blank Sample Documents Sample Customization Reports 35040 Appendix Sample Customization Reports 35040 Appendix Sample Customization Reports Blank Timed Measurements Introduction New FeaturesOverview Specifications Update New Features B Setup Making Timed Exposure Measurements Timer Setup ProcedureTimer Use Procedure Setup B RESET/MEASURE Automatic Leakage Compensation ADC ALC Operation Instructions B Start NA pA Stop Thres Current Decimal Places Timer Setup Table B-1. Annunciators Annunciators, Indicators, and Overrange ConditionsTable B-2. Measurement Indicators and Conditions Condition Overranged Measurement1 Table B-3. Overrange Conditions Theory of Operation Theory Of Operation Configuration Error Service Required Error Number Measurement Displays Main MenuMeasurement Menu Figure B-9 shows the Measurement Displays dialog box Table B-4. Available Display Lines Figure B-10. The Timer Intervals dialog box Page Fluke Biomedical