3.1.3.3 Operability check of the radiometer
3.1.3.3.1 Operability check of the radiometer is performed according to item
2.2.3 of the present OM.
3.1.3.3.2 Order of pre-repair fault detection and rejection
Use the following criteria to evaluate the necessity of sending the radiometer for
repair and the type of repair:
- for mid-life repair:
a) deviation of parameters from reference values during periodical verification
of the radiometer;
b) minor defects of the LCD that do not affect the correct readings of
measurement results;
c) no LCD backlight;
d) no sound alarm;
- for major repair:
a) at least one non-operating measurement channel;
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