2 USE OF THE DOSIMETER
2.1 General guidelines
When purchasing the dosimeter it is necessary to check the delivery kit and the
proper operation of the dosimeter in all the operation modes according the items 2.4.1 -
2.4.2.
Protect the dosimeter from shocks and mechanical damages. Avoid exposing the
dosimeter to hostile environments, organic solvents and open fire.
2.2 Safety instructions
During the dosimeter adjustment, checking, repair, maintenance and verification, if
the radioactive sources are used, the regulations for work with radioactive materials and
other radiation sources, as well as Standards of radiation safety should be followed.
2.3 Preparation for use
2.3.1 It is necessary to study all sections of the present operating manual before
using the dosimeter.
2.3.2 Unpack the dosimeter.
2.3.3 Insert the battery in accordance with the section 3.3.
2.3.4 Place and fix the dosimeter on a wrist.
N o t e - If the dosimeter is expected to be used under conditions when the dose rate
value is higher than 0.1 mSv/h, it is recommended to insert a new battery.
2.4 Use of the dosimeter
2.4.1 Selection of an indicated parameter.
The dosimeter operates in the following modes:
- gamma radiation DER indication mode;
- gamma radiation DE indication mode;
- dosimeter’s number indication mode (“blind dosimeter”);
- mode of data transmission to PC;
- alarm clock;
- timer;
- stop-watch;
- clock-calendar;
- set mode;
- partial or critical battery discharge indication mode;
- audible alarm mode at the exceeding of the preset DE or DER thresholds.
Modes of DER, DE, dosimeter’s number indication’ data transmission to PC,
alarm clock, timer, stop-watch, clock-calendar are switched on by a successive
pressing of the MODE button (figure 2.1).
The dosimeter allows switching on/off all the above-mentioned modes excluding the
partial and critical battery discharge indication mode. Change of the configuration is
performed in the mode of data transmission to PC.
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