ECOTEST MKS-05 TERRA Operating Manual page 24

The battery compartment (1) and the window (3) for surface beta-
particles flux density measurement are located in the lower cover (7)
(Figure 2). The battery compartment (1) is closed with the cover (2)
whereas the window of the detector (3) is closed with the filter cover, both
of which are fastened due to the elastic capacities of the material. The filter
cover (4) contains the metrological mark (5) showing the mechanical center
of the detector.
The control and indication keys of the dosimeter contain the
corresponding inscriptions. The information table is drawn on the lower
cover (7) of the device. (Figure 2) The polarity signs are indicated at the
bottom of the battery compartment (1) for proper insertion of batteries.
1.4.2 Basic operation of the dosimeter
The dosimeter is a mono-block construction with:
- the detector of gamma and beta radiation;
- the printed-circuit board with the circuit of the anode voltage
formation, the circuit of digital processing, control, and indication and
the module of Bluetooth radio channel;
- the batteries.
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