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Gossen Metrawatt METRAHIT ULTRA BT Manual

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66 GMC-I Messtechnik GmbH
Maintenance – Calibration
9 Maintenance and Calibration
Attention!
!
Disconnect the instrument from the measuring circuit before
opening the battery compartment lid or fuse cover in order
to replace batteries or fuses!
9.1 Displays – Error Messages
9.2 Batteries
Note
Removing the Batteries During Periods of Non-Use
The integrated quartz movement draws power from the bat-
teries even when the instrument is switched off. It’s advis-
able to remove the batteries during long periods of non-use
for this reason (e.g. vacation). This prevents excessive
depletion of the batteries, which may result in damage under
unfavorable conditions.
Note
Battery Replacement
Stored measurement data are lost when the batteries are
replaced. The selected operating parameters remain in
memory, although date and time must be reentered.
Charge Level
The current battery charge level can be queried in the “1nfo”
menu:
1nFo bAtt: 2.75 V.
Make sure that no battery leakage has occurred before initial
start-up, as well as after long periods of storage. Continue to in-
spect the batteries for leakage at short, regular intervals.
If battery leakage has occurred, carefully and completely clean the
electrolyte from the instrument with a damp cloth, and replace the
battery before using the instrument.
If the “ ” symbol appears at the display, the batteries should
be replaced as soon as possible. You can continue working with
the instrument, but reduced measuring accuracy may result.
The instrument requires two 1.5 V batteries in accordance with
IEC R 6 or IEC LR 6, or two equivalent rechargeable NiMH batter-
ies.
Message Function Meaning
FUSE
Current measurement Blown fuse
In all operating modes Battery voltage has fallen below 1.8 V
0L
Measuring Indicates overflow
MEASURE
SETUP
FUNC
ENTER
… 66 …


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