Display Will Not Light | Fluke 35040 guide

35040

Operators Manual

4.3 Display Will Not Light

				Go to
				line:
	1.	Is the instrument connected to line voltage?	YES	2
	1.	Is the instrument connected to line voltage?	NO	4
			NO	4
	2.	Disconnect the line cord. Check the fuse. (See Section 4.6.) Is the fuse	YES	3
	2.	filament intact?	NO	11
		filament intact?	NO	11
	3.	Attach known operational appliance to outlet. Does the appliance work?	YES	4
	3.		NO	12
			NO	12
	4.	Connect instrument to AC line. Press the Power button.	YES	5
	4.	Did the display light up?	NO	7
		Did the display light up?	NO	7
	5.	Is the battery current between +0.10 A and +3.00 A?	YES	6
	5.	Is the battery current between +0.10 A and +3.00 A?	NO	13
			NO	13
		The fault has been cleared. The battery is charging. Leave the instrument
	6.	plugged in for at least 2 hours. When the battery is less than 5.4 volts and the
	6.	instrument is running on battery, the instrument will turn itself off. This is to

		protect the battery from becoming severely discharged.
	7.	Replace cord with known good cord or establish that the line cord is good. Is	YES	8
	7.	line cord good?	NO	14
		line cord good?	NO	14
	8.	Was the battery low the last time the instrument was stored?	YES	9
	8.		NO	16
			NO	16
	9.	Has the instrument been plugged in for more than 24 hours?	YES	10
	9.	Has the instrument been plugged in for more than 24 hours?	NO	15
			NO	15
	10.	PROBLEM: Instrument will not power up after 24 hours. See Section 4.10.

	11.	See Section 4.6.

	12.	Faulty Outlet. Use a different outlet.

	13.	See Section 4.2 to isolate problem.

	14.	ORDER: Proper line cord. See Section 4.9.

		The battery may take more than 18 hours to recharge if the battery was in the
	15.	low battery condition and was not recharged before storage. Leave the
		instrument plugged in and try again in 18-24 hours.
	16.	PROBLEM: Instrument will not power up. See Section 4.10.

4-6

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Fluke 35040 manual Display Will Not Light

Contents

35040 Therapy Dosimeter Fluke Biomedical Table of Contents Addendum Features of Firmware Version 27JAN00 or Later Troubleshooting and ServiceSample Customization Reports Iii Blank Introduction FeaturesIntroduction Safety Symbols And Terms Before You Start Safety PrecautionsOperators Manual Specifications Factory Calibration Error Source ± %rdgMaximum Error Manual Addenda Full Scale Range Display Resolution Noise ± counts Full Scale Range Display ResolutionTimed Charge Measurements Current Measurements Effective Exposure Time Measurements SpecificationsGeneral Measurements High Performance Power Supply and Battery Charger Unpacking and Inspection 35040 Hardware Block Diagram of the Model 35040 Therapy Dosimeter Functional Description Power Supply Front PanelMicroController Serial Communications Port Basic Operating Equations ElectrometerBias Supply Multiplexer and A/D Converter Quantity Description Units Comments QExposureQAccum QAccumprevious Leakage Measurements Charge and Current Measurements= time of electrometer conversion s Exposure Charge and Dose Timed Charge and Dose Setting Thresholds Predicted Timed Charge and DoseAccumulated Charge and Dose Exposure Current and Rate Exposure Time DoseRate = I a × Iccf Units/C × Adcf × RateMultiplier s ⎝ P Air Density Correction FactorMm Hg = inch Hg x Standard Resolution Error Units Display Minimum Maximum Setup SetupFront Panel Familiarization Introduction Powering The System Rear Panel Familiarization Power-Up Self-Test and Display Messages Ion Chamber Connector General Considerations Basic Measurement TechniquesMaking Non-Timed Exposure Measurements Timer Use Timer Setup3Making Timed Exposure Measurements Battery Care Using Other Ion Chambers Power Battery CareOperation Instructions Front Panel Controls Powering Up the Model 35040 Therapy Dosimeter Using the Test Function Button Powering Down the Model 35040 Therapy DosimeterOperation Instructions QScaleFactor=1.0000 IScaleFactor=1.0000 12. The Test Function Screen Showing the Timer Settings 5Automatic Leakage Compensation Calibrated by Keithley RMD Nov 15 6Timer Setup 17. The Test Function Screen Showing the Timer Settings Using the Detector Select Button Using the AIR Density Button Using the Units Select Button Using the Bias Select Button Set 300.0 V 100% Central Electrde Pos IC Bias 300.0 V CEP Using the RESET/MEASURE Button Overranging Conditions Overrange Conditions Reset ErrorCondition Values Overranged Reset Error With Automatic Leakage Compensation Enabled AnnunciatorsAnnunciators Annunciator Condition Measurement Indicators and Conditions Indicator Measurement Condition? left of value Condition Overranged Measurement Installing/Uninstalling Customization Software CustomizationConnection to the Computer Starting the Customization Software Menu Items and Controls DownloadingCOM Port Drop Down List Close or File Close Ion ChambersFile Save AS and File Print Edit OK and Cancel Special Items Download and Cancel 36. The Special Items Menu Calibration Temperature has focus Measurement Displays Operators Manual Available Display Lines Display Line Using the APPEND, DELETE, and Insert Buttons Display Line Group SelectionSelecting an Item and Placing It Changing a Line on a Display Timer Intervals 38. The Timer Intervals Form Bias Settings 39. The Bias Settings Form Examples Changing the Pressure Units Customizing a Measurement DisplayAppending a Display Deleting a Display Errors Troubleshooting and Service Troubleshooting Symptom Display does not light up when Power is pressed Symptom ??Bias annunciator displayedSymptom HiBias annunciator displayed Symptom LoBias annunciator displayed Symptom Internal Reset Error displayed Symptom Configuration Error displayedBit Description Action Do not make Symptom Current Overrange Displayed Symptom Dashes displayed instead of digitsSymptom Bias voltage measurement changes by one digit Measurements. Return Example 299.9 to Display Will Not Light Low Battery Hours? Is the battery voltage greater than 5.9 volts? Go to Bias ErrorLine Line Fuse Replacement Model 35040 Therapy Dosimeter Fuse Replacement Cleaning The Instrument Interface Connector CleaningReplaceable Parts Information Warranty Information Replaceable Parts ListRecalibration, Repair Information & Technical Assistance Replaceable Parts Information Blank Sample Customization Reports Sample Documents 35040 Appendix Sample Customization Reports 35040 Appendix Sample Customization Reports Blank Overview Introduction New FeaturesTimed Measurements Specifications Update Setup New Features B Timer Use Procedure Timer Setup ProcedureMaking Timed Exposure Measurements RESET/MEASURE Setup B ADC ALC Automatic Leakage Compensation Start NA pA Stop Thres Current Operation Instructions B Timer Setup Decimal Places Table B-2. Measurement Indicators and Conditions Annunciators, Indicators, and Overrange ConditionsTable B-1. Annunciators Table B-3. Overrange Conditions Condition Overranged Measurement1 Theory Of Operation Theory of Operation Configuration Error Service Required Error Number Measurement Menu Main MenuMeasurement Displays 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