Recalibration - Gossen MetraWatt MINITEST PRO Operating Instructions Manual

MINITEST PRO | (3P) Master
9.3

Recalibration

The measuring tasks performed with your instrument, and the stressing it's sub-
jected to, influence aging of its components and may result in deviation from the
specified levels of accuracy.
In the case of strict measuring accuracy requirements, as well as in the event of use
at construction sites with frequent stress due to transport and considerable tem-
perature fluctuation, we recommend a relatively short calibration interval of once
per year. If your instrument is used primarily in the laboratory and indoors without
considerable climatic or mechanical stressing, a calibration interval of once every
2 to 3 years is sufficient as a rule.
During recalibration * at an accredited calibration laboratory (DIN EN ISO /
IEC 17025), deviations from traceable standards demonstrated by your measuring
instrument are documented. Ascertained deviations are used to correct display val-
ues during later use of the instrument.
We would be happy to perform DAkkS or factory calibration for you at our calibra-
tion laboratory 24.
Recalibration of your instrument at regular intervals is essential for the fulfillment of
requirements according to quality management systems per DIN EN ISO 9001.
According to DIN VDE 0701-0702 and IEC 62353 (VDE 0751), only test instru-
ments which are tested and calibrated at regular intervals may be used for testing.
* Examination of the specification, as well as adjustment, are not included in calibration. However, in the
case of our own products, any required adjustment is performed and adherence to the specification
is confirmed.
Note!
These tests can be performed on-site with the SECU-cal 10 calibration
adapter accessory.
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Gossen Metrawatt GmbH