Maintenance And Calibration; Displays - Error Messages; Batteries - Gossen MetraWatt METRAHIT PM TECH Operating Instructions Manual

Maintenance – Calibration

11 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!
11.1 Displays – Error Messages
Message Function
Current measurement
FUSE
In all operating modes
Measurement
0L

11.2 Batteries

Note
Removing the Batteries During Periods of Non-Use
The integrated quartz movement draws power from the
batteries even when the instrument is switched off. It is
advisable to remove the batteries during long periods of
non-use for this reason (e.g. vacation). This prevents
excessive depletion of the battery, which may result in
damage under unfavorable conditions.
Note
Battery Replacement for METRAHIT PM XTRA /
Stored measurement data are not lost when the batteries
are replaced. The selected operating parameters remain in
memory, although date and time must be reentered.
59
Meaning
Blown fuse
Battery voltage has fallen below 2.0 V
Indicates overflow
PM TUNE /
Battery Charge Level
The current battery charge level can be queried in the "1nfo"
menu:
MEASURE FUNC
1nFo
SETUP ENTER
Make sure that no battery leakage has occurred before initial
start-up, as well as after long periods of storage. Continue to
inspect 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
batteries 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
batteries.
E
XTRA
bAtt: 2.75 V.
Gossen Metrawatt GmbH