Switching on/off
If before being used for the first time
the device was exposed to high or low
temperatures, it needs to stay indoors for 2
hours.
In order to switch the device on/ off, you need
to press and hold 'OK' button for 3 seconds
(pic. 2).
Main menu
Main menu of the device is presented on pic.3.
Main menu of the device consists of following selections:
1. MEASURING – measures the radiation background level considering
the measuring uncertainty. Press 'ENTER' button to select it.
2. SEARCHING – measures the radiation background level without
considering the measuring uncertainty. Press SELECT button.
3. DOSE - displays the accumulated radiation dose. Press SELECT button
to select it.
4. SAVED – displays saved dosimeter data. Measurement data, searching
data and accumulated radiation data can be saved. Press SELECT
button to select it.
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pic. 2
pic. 3
5. SETTINGS – sets up different device settings. Press SELECT button to
select it.
6. INFO – manufacturer's contacts. Press SELECT button to select it.
There is a following service information on the display (pic.4):
1. Current data/ time.
2. Radiation background level.
3. Schedule of radiation background change.
4. Battery charge level indicator, device connection to the power source
icon.
5. Sound indicator.
Some chemical elements (so called radioactive isotopes) contain unstable
nucleus that decay into small elementary particles or quanta. Detachment of
elementary particles or quanta is ionizing radiation.
Radiation is called ionizing, because it leads to atomic ionization of substance
that is stroke by radiation. Ionization is called the process of striking one or a few
electrons out of atom. After that, nucleus and left electrons create a system that
is positively charged and is called an ion (IONIZED ATOM).
Ionized atoms strongly differ from average nucleus. Ions destroy other molecules
by breaking a bond between nucleuses. That is the reason why ionized radiation
influence on human's health is harmful.
Radiation influence on human's body is called irradiation. Radiation transpierces
any body tissues and ionizes their particles and molecules. This leads to creation
of ionized nucleuses (ions or so-called free radicals) that destroy molecules and
lead to inclusive death of cells.
As it was said before, nuclear disintegration into elementary particles is
accompanied by radiation of these particles. This radiation is divided into
following types:
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Service information
pic. 4
Radiation level measurement
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