EPD/HB/40521/000
ELECTRONIC PERSONAL DOSEMETER HANDBOOK
INTRODUCTION
ISSUE 5
Page 2
Thermo
1.2 EPD Major Characteristics
Major Characteristics relating to the EPD are listed in Table 1.1.
Table 1.1 - EPD Major Characteristics
Item Characteristic
Power One AA battery, either a standard Alkaline (1.5 V) battery
or high energy Lithium Thionyl Chloride (LTC) (3.6 V).
Weight 95 gms (including LTC battery and clip).
Dimensions 86 x 62 x 18.5 mm (excluding clip).
Alarm sounder 98 - 101 dB on loud 4kHz setting.
Quiet and 2 kHz settings available.
Dose-chirp function on Hp(10) dose.
The EPD also has the following major features:
♦
Improved immunity to radio frequency interference (RFI).
♦ Display Backlight.
♦
EPD communication via an infra-red interface up to a range of
approximately 1 metre.
♦
Improved dose profile facility.
♦
Real-time dose chirp (adjustable).
♦
Password protected dose store for ADS functions.
♦
Extended systems integration facilities.
♦ Count down timer and alarm.
Appendix C is a
summary of the general physical & functional characteristics of the EPD.
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