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EPD Mk2
Thermo EPD Mk2 User Manual
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EPD/HB/40521/000
ISSUE 5
EPD TECHNICAL HANDBOOK
Page
91
Chart 2
0
200
400
600
800
1000
1200
1400
0.1
1
10
100
1000
10000
100000
Frequency (MHz)
Volts/Metre
Chart 2. The tested Mk2 EPDs were not susceptible to E
-
field radiation below the above spot frequencies
(100kHz
-
100GHz carrier wave).
100
102
Table of Contents
Default Chapter
3
Table of Contents
3
Glossary
7
Cautions
9
Section 1
11
Introduction
11
General
11
Epd Major Characteristics
11
Brief Functional Description
12
Section 2
15
Getting Started
15
Setting-Up
15
Unpacking the EPD
16
The EPD Battery
16
Start-Up Sequence
19
EPD Confidence Test
20
Issuing an EPD
20
Wearing an EPD
21
Operating Instructions
23
Lcd Display and Backlight
23
Audible and Visible Alarms
26
Alarm Features
26
Dose Alarms
30
Dose Rate Alarms
30
Over-Range Indication
31
Alarm Muting
32
Button Operation and Display Selection
33
LCD Display Lock-On Facility
34
Display Options and Button Functions
36
Displaying Hp (10) Dose, Dose Rate and User ID
36
Displaying Hp(0.07) Doses, Dose Rate and ADS User ID
37
Displaying Total Dose
39
Starting/Stopping the Seconds Count down Timer
39
Turning the EPD off
40
Displaying Peaks (Rate High)
41
EPD Confidence Test
42
Clearing Dose Displays
44
Displaying/Setting Dose Alarm Thresholds
44
Displaying/Setting Dose Rate Alarm On/Off Thresholds
46
Setting the Sounder
48
Section 4
53
Technical Description
53
General
53
Electrical Characteristics
54
Battery Management
54
Mechanical Description
56
Mechanical Characteristics and Dimensions
56
Brief Mechanical Description
56
Environmental Description
58
Environmental Characteristics
58
Brief Environmental Description
58
Infra-Red Interface
59
Communicating with the EPD
59
Epd Internal Processing & Facilities
61
Memory Characteristics
61
Alarm Characteristics
62
Default Display
62
User Identification
62
Dose and Dose Rate
63
Dose
63
Dose Rate
63
Counts
64
Dose Quality Flags
65
(I) Reset Count
65
(II) Shock Time Seconds
65
(III) Dose Over-Range
65
(IV) Dose Rate Over-Range
65
(V) Counter Over-Range
65
(VI) Abuse Warning
66
(VII) CRC Failure
66
Dose and Dose Rate Alarm Processing
66
EPD Operating Status
67
EPD 'Run' and off Times
67
EPD State
67
Alarms
68
Faults
68
Dose Profile
69
Event History Store
69
Section 5
71
Epd Faults and Recovery Actions
71
Overview
71
Visual and Audible Fault Indication
72
Internal Logging of Fault Conditions
73
EPD Status Faults Record
73
Event History Store
73
Blank Lcd Display and Other Faults
75
Initialisation Error ( Lcd
77
Communications Error ( Lcd ==== )
77
Lcd Display Error Codes
79
Error Code
79
Recovery Procedures
80
Logging Faults / Extracting Data
80
Clearing Faults
80
Section 6
87
Maintenance
87
Calibration
87
The Epd Battery
89
Replacement Batteries
89
Battery Leakage
89
Lithium Thionyl Chloride Battery Warning
90
Replacing the EPD Battery
91
Epd Clip Assembly
92
Removing the EPD Lanyard Plate/Clip Assembly
93
Replacing the EPD Lanyard Plate/Clip Assembly
94
Cleaning
95
General Cleaning
95
Radiological Cleaning
95
Cleaning after a Battery Leakage
95
Periodic Cleaning
96
Appendix A
97
Radiological Specifications
97
Appendix B
99
Appendix B
99
Electromagnetic Compatibility
99
Appendix C
105
Summary of General Physical & Functional Characteristics
105
Appendix D
109
Epd Fault Log Form
109
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Thermo EPD Mk2 Specifications
General
Brand
Thermo
Model
EPD Mk2
Category
Measuring Instruments
Language
English
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