Fig. 2
–
Main parts scheme
1.4.2. The radiation detector used in the device is a gas-discharge meter. By it the photon
flux is transformed into the sequence of electrical signals by the radiation detector. These signals
are processed by the smart detection circuit that provides the automatic processing of the
ambient dose and the ambient dose rate measured data and the display indication.
1.4.3. Figure 3 illustrates the display in the Measurement mode
Fig. 3 – Measurement mode on the display
During the measuring averaged values of the ambient dose rate is being continuously
displayed (no.1) in the units defined by user (µSv/h or µR/h). When the radiation level is
constant, the measuring time is ranging from 10 to 80 seconds depending on the radiation rate.
The displayed values are automatically changing and being averaged by the microprocessor. This
averaging process is displayed by the measurement cycle dynamic graph (no. 5).
The additional information shown on the display includes also:
−
radiation environment time base diagram (no. 2);
−
environment temperature (по no. 6);
−
sound mode pictograph (no..7);
−
pictograph informing about the chosen power type (no. 8);
−
battery charge level (no. 9);
−
current time (no. 10);
−
textual information about the exceedance/nonexceedance of the ambient dose rate
threshold defined by user (no.11).
Note. The environment temperature is measured by the inbuilt sensor. For this reason
displayed value of the environment temperature may depend on the heating of the unit’s parts
while operating a device.
In the line (no. 3) below the radiation environment time base diagram (no. 2) you can see
