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(10) After all supported units on its itinerary have been visited, the
ATST returns to the secondary reference facility.
The team's secondary
transfer standards are once again calibrated by the secondary reference
facility to insure that they have not deviated beyond their specified
tolerance.
If the calibration determines that the secondary transfer
standards have not deviated beyond specified tolerances, the calibration
itinerary is considered valid and is "closed."
(11) If calibration reveals that a certain standard has not remained
within its specified tolerance, the itinerary is not considered closed and
all equipment calibrated with that standard will have to be recalibrated.
All units serviced by a defective standard are notified that specific TMDE
will be considered unreliable until recalibrated.
will arrange for necessary recalibration and will inform units involved.
(12) Usually, closure of the itinerary and opening of a new one are
simultaneous occurrences.
The calibration and certification of secondary
transfer standards upon return of the ATST satisfied the requirement for
calibration and certification prior to embarking on a new trip. Normally,
the transfer standards will not be recalibrated unless there is a long delay
before the ATST goes out again or a change in environmental conditions
occurs. The decision as to whether this equipment must again be calibrated
is made by the laboratory chief and must be based on common sense and
experience.
(13) While the ATST awaits completion of processing and redispatch on
another trip, section members attend to personal needs and perform any
company duties as may be assigned. During this period necessary maintenance
is performed on the team's organic equipment.
(14) The normal period of calibration for test equipment is every 120
days, unless historical data complied by AMCC indicates otherwise.
5.
SUMMARY. This lesson introduced the Army TMDE Calibration and Repair
system, the more common calibration terminology, and the responsibilities of
the major subordinate commands, the reference standards facilities and the
calibration teams. You should now be able to define these concepts and be
able to explain the major ideas of the Army Calibration and Repair system.
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