User manual

Displace the unit to the second sighting point.
Press «START» button and wait till completion of a cycle
of a «BACKGROUND» estimation (screen 12). A number in
the second line is the evaluation of a dose rate in the second
sighting point (screen 13). In order to receive accurate
estimation of a background it is necessary to conduct similar
observations in 5 sighting points (screen 14).
Note. A number of sighting points can be reduced by
clicking «END» button without waiting for ending of the fifth
cycle of estimation. But it reduces integrity of the reading.
After 5 indications have been made press an «END»
button a screen 15 will appear. The icon « » placed opposite
to «ON» means that after exiting a «MENU» mode the device
switches to a «BACKGROUND» mode (page 30) and two
indications will be displayed:
1) difference of a dose rate between the
average indication and background;
2) background dose rate.
To return to the main menu screen press a «RETURN»
button, a screen 16 appears.
Press «EXIT» button. A screen «RD1503+ » reveals,
where a «BACKGROUND" and a value of a background dose
rate are placed beneath «RD1503+» (screen 17).
«BACKGROUND» mode starts functioning (page 30).
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