Radian RD-30, Руководство по эксплуатации

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RD-30 Operations Manual
Service & Routine Maintenance
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5.0 Service & Routine Maintenance
The RD-30 Dytronic portable electricity Standard is virtually maintenance free. The elimination
of all contacts, switches and tap selections on the primary side of the input transformers
significantly improves reliability by eliminating both service components and the opportunity for
operator error. Other than cleaning of the outside surface and the yearly recalibration, no routine
maintenance is required.
5.1 Cleaning
Cleaning of the RD-30 may be performed with a clean, dry lint-free cloth dampened slightly with
a mild window cleaner. The areas around the top terminals should be buffed dry with another
cloth, which is completely clean and totally dry.
5.2 Repair
It is recommended that Radian Research perform all repairs. We have excellent automated testers
with which every internal module can be tested quickly to original factory specifications. A final
calibration and quality control inspection to original factory specifications is performed quickly
and thoroughly. If the RD-30 is in need of repair then contact Radian Research or your local
Radian Research Representative and request a Return Material Authorization (RMA) number.
You will need to provide the model number and serial number as well as a detailed description of
the problem.
5.3 Recalibration
Recalibration is recommended yearly. A periodic cross check against a Radian RD-21 or RD-
22 or RD-31 is recommended to preclude the possibility of a failure in either. Prudence would
dictate having a dedicated RD-21 or RD-22 or RD-31 for cross check purposes. With the RD-
21 or RD-22 or RD-31 it is feasible to sample test units at various points as a “backup” test.
In addition, it is recommended that one take advantage of Radian’s recalibration service as a
very cost effective method to maintain traceability Radian Research’s Calibration Laboratory
maintains primary transfer standards that are directly traceable to NIST. Radian Research’s
Calibration Laboratory also maintains several RS-703A Automated Calibration Systems as
working secondary standards.