- Quality Control Department seals should not be violated;
- the radiometer should be free from mechanical damage that may affect its performance.
Note. The delivery kit completeness is checked only at manufacture.
3.2.4.2 Testing
Switch on the radiometer and program zero values of audio alarm threshold
levels of each measuring channel. Afterwards switch on the mode of photon-ionizing
radiation DER measurement and place the radiometer near the low-active
137
Cs
gamma radiation source. Observe an increase of DER readings on the LCD upon the
background level and audio signaling at registration of gamma-quanta by the
detector.
3.2.4.3 Calculation of main relative error of photon-ionizing radiation DER
measurement
Prepare the УПГД-3В testing equipment for operation according to its operating manual.
Prepare the radiometer for photon-ionizing radiation DER measurement
(hereinafter called DER) and program 5 % value of the specified statistical error
according to item 2.3.3.6 of the OM.
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