Fluke
35040
manual
Troubleshooting
Specifications
Parts list
Standard Resolution Error
Timer Use
Safety Symbols And Terms
Using the RESET/MEASURE Button
Setup
Ion Chamber Connector
Battery Care
Page 74
35040
Operators Manual
A-4
Page 73
Page 75
Image 74
Page 73
Page 75
Contents
35040
Therapy Dosimeter
Fluke Biomedical
Table of Contents
Sample Customization Reports
Troubleshooting and Service
Addendum Features of Firmware Version 27JAN00 or Later
Iii
Blank
Introduction
Features
Introduction
Operators Manual
Before You Start Safety Precautions
Safety Symbols And Terms
Maximum Error
Specifications
Factory Calibration Error Source ± %rdg
Manual Addenda
Timed Charge Measurements
Full Scale Range Display Resolution Noise ± counts
Full Scale Range Display Resolution
Current Measurements
General Measurements
Specifications
Effective Exposure Time Measurements
High Performance Power Supply and Battery Charger
Unpacking and Inspection
35040
Hardware Block Diagram of the Model 35040 Therapy Dosimeter
Functional Description
MicroController
Power Supply
Front Panel
Serial Communications Port
Bias Supply
Basic Operating Equations
Electrometer
Multiplexer and A/D Converter
QAccum
Quantity Description Units Comments
QExposure
QAccumprevious
= time of electrometer conversion s
Charge and Current Measurements
Leakage Measurements
Exposure Charge and Dose
Timed Charge and Dose
Accumulated Charge and Dose
Setting Thresholds
Predicted Timed Charge and Dose
Exposure Current and Rate
Exposure Time
DoseRate = I a × Iccf Units/C × Adcf × RateMultiplier s
Mm Hg = inch Hg x
Air Density Correction Factor
⎝ P
Standard Resolution Error
Units Display Minimum Maximum
Front Panel Familiarization
Setup
Setup
Introduction
Powering The System
Rear Panel Familiarization
Power-Up Self-Test and Display Messages
Ion Chamber Connector
Making Non-Timed Exposure Measurements
Basic Measurement Techniques
General Considerations
3Making Timed Exposure Measurements
Timer Setup
Timer Use
Battery Care
Using Other Ion Chambers
Operation Instructions
Power
Battery Care
Front Panel Controls
Powering Up the Model 35040 Therapy Dosimeter
Operation Instructions
Powering Down the Model 35040 Therapy Dosimeter
Using the Test Function Button
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
Condition Values Overranged
Reset Error
Overrange Conditions
Annunciators
Reset Error With Automatic Leakage Compensation Enabled
Annunciators
Annunciator Condition
? left of value
Measurement Indicators and Conditions
Indicator Measurement Condition
Condition Overranged Measurement
Connection to the Computer
Installing/Uninstalling Customization Software
Customization
Starting the Customization Software
COM Port Drop Down List
Downloading
Menu Items and Controls
File Save AS and File Print
Ion Chambers
Close or File Close
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
Selecting an Item and Placing It
Using the APPEND, DELETE, and Insert Buttons
Display Line Group Selection
Changing a Line on a Display
Timer Intervals
38. The Timer Intervals Form
Bias Settings
39. The Bias Settings Form
Examples
Appending a Display
Changing the Pressure Units
Customizing a Measurement Display
Deleting a Display
Errors
Troubleshooting and Service
Troubleshooting
Symptom HiBias annunciator displayed
Symptom Display does not light up when Power is pressed
Symptom ??Bias annunciator displayed
Symptom LoBias annunciator displayed
Bit Description Action
Symptom Internal Reset Error displayed
Symptom Configuration Error displayed
Do not make
Symptom Bias voltage measurement changes by one digit
Symptom Current Overrange Displayed
Symptom Dashes displayed instead of digits
Measurements. Return
Example 299.9 to
Display Will Not Light
Low Battery
Hours? Is the battery voltage greater than 5.9 volts?
Line
Bias Error
Go to
Line Fuse Replacement
Model 35040 Therapy Dosimeter Fuse Replacement
Replaceable Parts Information
Interface Connector Cleaning
Cleaning The Instrument
Recalibration, Repair Information & Technical Assistance
Warranty Information
Replaceable Parts List
Replaceable Parts Information
Blank
Sample Customization Reports
Sample Documents
35040
Appendix Sample Customization Reports
35040
Appendix Sample Customization Reports
Blank
Timed Measurements
Introduction New Features
Overview
Specifications Update
Setup
New Features B
Making Timed Exposure Measurements
Timer Setup Procedure
Timer Use Procedure
RESET/MEASURE
Setup B
ADC ALC
Automatic Leakage Compensation
Start NA pA Stop Thres Current
Operation Instructions B
Timer Setup
Decimal Places
Table B-1. Annunciators
Annunciators, Indicators, and Overrange Conditions
Table B-2. Measurement Indicators and Conditions
Table B-3. Overrange Conditions
Condition Overranged Measurement1
Theory Of Operation
Theory of Operation
Configuration Error Service Required Error Number
Measurement Displays
Main Menu
Measurement 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
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