The green LED signals the presence of radiation levels comparable to the natural
background.
The sound clicks become more frequent as the radiation level rises. The red
LED (labeled
ВНИМАНИЕ
“attention”) lights when the radiation level is
abnormally high.
The power supply consists of two AA batteries.
How to use the radiation detector
(1) Set the power switch OFF (to the left, away from
ВКЛ
“on”).
(2) Slide off the battery compartment cover and insert two AA cells with the
indicated polarity. Put the battery compartment cover back in place.
(3) Turn the power switch on (
ВКЛ
). Characteristic sound clicks and green
LED flashes should appear within 5 seconds.
(4) Switch off the radiation detector when you are finished using it. Because
of residual high voltage, some audible clicks may continue for a few
seconds.
CAUTION!
There is high voltage (440 V) inside the case.
Do not disassemble the radiation detector!
Do not use it with the cover removed!
Follow instructions carefully.
Operating procedure
Install batteries in the radiation detector and switch it on (
ВКЛ
). It should issue 1
to 4 sound clicks per second at natural background radiation rates in Europe
(somewhat lower in the Americas).
For testing, it may be necessary to bring a radioactive source close to the
detector window, which is a mesh surface on the back panel of the device. In
this way you can get the source to within 10 to 20 mm (less than 1 inch) of the
Geiger-Müller tube.
When searching for source of radioactivity or comparing different parts of a large
object or area, it is recommended that you leave the radiation detector switched
on and move it around without switching it off between readings. Test each
position for at least 5 seconds.
