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Table 3.2 – Verification operations
Operation name
Verification procedure
No.
1 External examination
3.2. 4.1
2 Testing
3.2. 4.2
3 Calculation of main relative permissible error limits of gamma
radiation DЕR measurement
3.2.4.3
3.2.2 Testing facilities
The following measuring instruments and equipment should be used during testing:
- УПГД-3В Х
д
1.456.183 ТУ standard equipment;
- stopwatch;
- voltmeter in accordance with ГОСТ 8711-93;
- МВ-4М aspirated psychrometer;
- М-67 control aneroid barometer;
- IBM-compatible personal computer with installed OS Windows, technological software and
free serial port;
- ВІСТ.412919.001 technological set, including:
ВІСТ.468353.001 serial port adapter
ВІСТ.436231.001 power unit
ВІСТ.685621.002 service cable
ВІСТ.685622.002 service cable
ВІСТ.467371.001 CD with technological software.
Usage of other measurement equipment that meets the specified accuracy is allowed.
3.2.3 Testing conditions
Testing should be carried in compliance with the following conditions:
- ambient air temperature in the range of (20±5)
о
С;
- relative air humidity in the range of (65±15) %;
- atmospheric pressure form 84 kPa to 106.7 kPa;
- natural background level of gamma radiation, not more than 0.25 µSv/h;
- power source voltage in the range of (12.0±0.5) V.
3.2.4 Testing procedure
3.2.4.1 External examination
During external examination the detecting unit should fulfill the following requirements:
- the delivery kit should be completed as described in section 3 of the ВIСТ.418266.032-02 ФО
logbook;
- labeling should be accurate;
- QCD seals should not be violated;
- the detecting unit should be free from mechanical damage that may affect its performance.
Note – The delivery kit completeness is checked only at manufacture.
