measuring the device should be placed at the height of 5 meters above the ground. The
measuring time is about 20…30 minutes.
Note. If possible inspect the objects comprehensively in compliance with the requirements
of the following statutory documents to receive the most meaningful measurements:
«Ionization radiation, radiation security and radiation safety standards (RSS-99). Sanitary
Rules SR 2.6.1.758-99».
«
Basic Sanitary Rules for Radiation Safety (BSRRS-99) SR 2.6.1.799-99».
«Radiation and hygienic inspection of inhabited and public buildings. Instrumental
guidance IG 2.6.2.715-98». Ministry of Health of the Russian Federation.
2.3.4.8. Recommendations on the inspection.
During the assessment of the radiological situation it’s should be taken into account that
the ionization radiation has statistically stochastic nature that’s why the readings taken by the
product in same conditions but by different calculating may be slightly different.
To receive the most meaningful measurements of the ambient dose rate it’s necessary to
make at least 8 cycles of measuring without powering the product off.
Measuring the radioactive pollution of food, everyday items, etc., it’s necessary to move
the Radiation meter closer to the object inspecting and place it at the distance of 5- 10
millimeters from the perforated back of the device. Next you should switch on the device and
investigate the object you want.
Investigating the radioactive pollution of liquids measure the ambient dose rate above the
free surface of them. It’s prohibited the ingress of liquids on the surface and inside the product.
If the measurement results are above the natural radiation background normal for the
location, it indicates that the object you investigate is polluted by radiation.
To define the ionization radiation source you should remove the working Radiation meter
above the object’s surface looking at the increase of audio signal frequency. Remember that the
audio signal frequency is increasing on drawing near the radiation source and decreasing
otherwise. To search for radiation sources with the help of audio signals you should switch on
the option
«ЗВУК ДАТЧИКА (SENSOR SOUND)»
in the settings
.
2.3.4.9. Switching off
To switch the product off push the button
and keep it pushed down before the picture
disappears on the screen.
3. Technical service
3.1. Keep the product clean and remove the dust by dry and clean flannel at times.
3.2. Protect the product from strokes and mechanical damage.
3.3. After working in locations increasingly polluted by radionuclides or measuring
the surfaces and samples with high pollution level the readings taken by the Radiation
meter may be raised in the absence of ionizing radiation sources. If so, it’s necessary to
decontaminate the case of the product.
3.4. Decontamination procedure.
3.4.1. Prepare the decontamination fluid (1/2 liters of warm pure water and 1/3 tea-
spoon of neutral washing powder without any alkaline additive).
3.4.2. Switch the product off and take the batteries out.
3.4.3. Using the sponge moistened with the prepared fluid clean the case and the
battery compartment access cover carefully.
3.4.4. Using dry and clean flannel clean the decontaminating surfaces.
3.4.5. Install batteries and cover the battery compartment. Check the working ability
of the product.
3.5. Using the product, check the batteries. If you see the runs of the battery acid,
renew them. After doing it, you need to install the inner clock of the Radiation meter.
