Lesson 2/Learning Event 3
LEARNING EVENT 3:
MONITOR CALIBRATION/CERTIFICATION
Because of the importance of accurate radiological readings on the battlefield, it is necessary to
have radiacmeters calibrated periodically.
Calibration of equipment is accomplished by trained maintenance personnel using precise test,
measurement, and diagnostic equipment (TMDE). Internal adjustments are made to correct any
errors in radiacmeter readings.
Proper scheduling of calibration is assured by coordinated use of DA Label 80, DD Form 314,
and the Unit Maintenance Scheduling Chart. In addition to the calibration and certification
intervals shown in figure 5, instruments must be calibrated any time a major part, such as a
Geiger-Mueller tube, is replaced.
FIGURE 5. RADIAC EQUIPMENT CALIBRATION AND
CERTIFICATION INTERVALS.
To determine proper calibration intervals for radiac instruments, refer to TB 43-180-1.
Calibration and certification of radiac equipment should be staggered to insure that no more than
50 percent of a type of radiacmeter is in for calibration at any time.
Radiacmeters that have been calibrated or certified will bear a DA Label 80, US Army
Calibrated Equipment. This label will show the date of calibration, the unit identification code
of the calibrating agency, the date the calibration is void, the name of the person conducting the
calibration, serial number of the item, and the unit identification code of the owning unit (figure
6). Only units with a calibration mission are authorized to use DA Label 80.
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