Natural radiation background usually ranges from 0.08 mSv/h till 0.18 mSv/h. Safe radiation background level for a human is
considered to be up to 0.4 mSv/h (the 0.4 mSv/h exposure per hour).
When Level of Radiation is exceeded (more than 0.4 mSv/h), the recommended time of staying in an
irradiation area is regressive. The Radiation Level amounts to 0.4 mSv/h, you can stay in the
irradiation area for one hour. If the Radiation Level amounts to 0.8 mSv/h, you can stay in irradiation
area for half an hour. Duration of stay in area with 1.6 mSv/h radiation amounts shouldn’t exceed 15
minutes and so on.
After entering the "Dosimeter" mode", preparation for measurement is done, because it is necessary
to estimate amount of registered radioactive particles.
Afterwards, information about radiation exposure level is displayed.
"Normal radiation background". Normal radiation exposure that is harmless for a human.
"Increased radiation background". You should not stay in an area with such radiation for more than 30 minutes.
"Dangerous radiation background". You should leave this area immediately.
When being in "Dosimeter" mode", the following information is displayed:
1. Accuracy indicator scale. The higher the scale, the more accurate the result that
you will obtain;
2. Current evaluation of radiation exposure level;
3. Measurement units;
4. "DOSE" button (switching to 1 2 accumulated dose mode);
5. Information about radiation exposure status;
6. Limit threshold;
7. "RESET" button (resetting the current radiation exposure data).
In order to measure the radiation exposure of food products, construction supplies and others materials, perform following:
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