Operation Manual

24 GMC-I Messtechnik GmbH
16 Maintenance – Recalibration
Attention!
!
Disconnect the instrument from the measuring
circuit before opening to replace batteries!
16.1 Batteries
Note!
Battery Replacement
Stored measurement values are deleted when the
battery is replaced. We recommend connecting the
power pack, or uploading data to a PC with the help
of METRAwin

10/METRAHit

software, before
replacing batteries in order to prevent data loss.
Operating parameters remain in memory.
Before initial start-up, or after storage of your instrument, make
sure that no leakage has occurred at the instrument battery.
Repeat this inspection at regular intervals.
If battery leakage has occurred, electrolyte from the battery
must be carefully and completely removed with a damp cloth,
and a new battery must be installed.
If the “ ” symbol appears at the LCD, you should replace the
batteries as soon as possible. You can continue to take
measurements, but reduced measuring accuracy may result.
The instrument works with two 1.5 V batteries per IEC R6 or
IEC LR6, or with corresponding, rechargeable NiCd batteries.
Battery Replacement
Ð Lay the instrument onto a flat surface with the front panel
facing down, loosen the two screws at the back and lift out
the housing base starting at point (a).
Ð Remove the batteries from the battery compartment.
Ð Insert two 1.5 V mignon cells into the battery compartment
in the direction indicated by the polarity symbols.
Ð Important for reassembly: First set the housing base onto the
housing top and align accurately (see photo below). Then
press the two housing halves together, first at the bottom
front (a), and then at the top front (b).
Ð Retighten the housing base with the two screws.
Ð Please dispose of depleted batteries properly!
(b) (a)