EPD/HB/40521/000
ELECTRONIC PERSONAL DOSEMETER HANDBOOK
GETTING STARTED
ISSUE 5
Page 6
Thermo
Battery Compartment Houses an Alkaline AA battery (1.5 V) or a Lithium
Thionyl Chloride (LTC) AA battery (3.6 V).
Infra-red Interface Infra-red communications interface to the EPD.
Button User interface for EPD control, alarm
acknowledgement and LCD display selection.
Sounder Provides an audible indication of an EPD alarm.
Beta Window Allows beta particles to pass through the case to the
Beta detector.
LCD Display Displays EPD parameters and/or functionality as
selected by the button.
Alarm LED Provides a visual indication of an EPD alarm.
Clip Assembly Provides a means of attaching the EPD to clothing, or
for attaching a lanyard as an alternative means of
wearing the EPD.
Table 2.1 - EPD External Features
2.1.1 Unpacking The EPD
There are no special unpacking instructions. Depending on customer
requirements the EPD may, or may not, be shipped with a battery and/or a clip
assembly. Alternatively, the EPD may be shipped with just a lanyard plate and
lanyard (see Section 6.3). The battery, if supplied, may be a LTC or Alkaline type.
2.1.2 The EPD Battery
WARNING
LITHIUM THIONYL CHLORIDE* (LTC) BATTERIES ARE POTENTIALLY
DANGEROUS. THEY MAY LEAK TOXIC SUBSTANCES THAT CAN BE
HARMFUL. READ AND TAKE NOTE OF THE MANUFACTURER’S WARNINGS
ON THE BATTERY CASE. READ ALSO THE DETAILED LTC BATTERY
WARNINGS ON PAGE 6.2 OF THIS HANDBOOK.
* Sulphurous Oxychloride, SOCl
2
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