Fuses; Recalibration - Gossen MetraWatt GEOHM C Manual De Instrucciones

Storing the Rechargeable Battery Pack
at –20 ... +35 °C
1 year
at –20 ... +45 °C
3 months
at –20 ... +55 °C
1 month
Replacing the Rechargeable Battery Pack
Ð
Loosen the two slotted screws at the battery compartment cover on
the housing rear panel and remove the cover.
Ð
Insert the rechargeable battery pack making certain it is poled in
accordance with the symbols.
Ð
Replace the cover and retighten the screws.
!
Attention!
The instrument may not be operated if the battery compartment
cover has not been installed and properly tightened!
Battery Disposal
Dispose of depleted batteries in an environmentally sound fashion, i.e.
bring them to an official collection center.
8.3

Fuses

If the fuse has blown due to an overload, an appropriate error message
appears at the LCD (R > max). However, the instrument's voltage
H
measuring range is still functional.
Replacing the Fuse
The fuse can be accessed easily from the outside of the instrument, and is
located to the left of the charging socket.
Ð
Remove the threaded fuse cap with the help of a suitable tool (e.g. a
screwdriver) by pressing and turning counterclockwise.
32
!
Attention!
Incorrect fuses may cause severe damage to the test instrument.
Only original fuses from GMC-I Messtechnik GmbH assure the re-
quired protection by means of suitable breaking characteristics
(article no. 3-578-235-01).
Bridging or repairing fuses is prohibited!
The instrument may be damaged if fuses with other current
ratings, blowing or breaking characteristics are used!
Ð
Remove the defective fuse and replace it with a new replacement
fuse. Replacement fuses are located in the battery compartment.
Ð
Insert the new fuse and the cap together, and lock into place by
turning clockwise.
Ð
Replace the battery compartment cover and secure with the screws.
8.4

Recalibration

The respective measuring task and the stress to which your measuring
instrument is subjected affect the ageing of the components and may
result in deviations from the guaranteed accuracy.
If high measuring accuracy is required and the instrument is frequently
used in field applications, combined with transport stress and great tem-
perature fluctuations, we recommend a relatively short calibration interval
of 1 year. If your measuring instrument is mainly used in the laboratory and
indoors without being exposed to any major climatic or mechanical stress,
a calibration interval of 2-3 years is usually sufficient.
During recalibration* in an accredited calibration laboratory
(DIN EN ISO/IEC 17025) the deviations of your instrument in relation to
traceable standards are measured and documented. The deviations
determined in the process are used for correction of the readings during
subsequent application.
We are pleased to perform DKD or factory calibrations for you in our cali-
bration laboratory. Please visit our website at
GMC-I Messtechnik GmbH