GMC-I Messtechnik GmbH
51
9
Maintenance and Calibration
Note
Recommendation:
Disconnect the instrument from the measuring circuit
before removing the battery pack or the mains module!
Attention!
!
Disconnect the instrument from the measuring circuit be-
fore opening the fuse cover in order to replace the fuse!
9.1
Displays – Error Messages
9.2
Battery Pack
Note
Removing the Battery Pack during Periods of Non-Use
The integrated quartz movement draws power from the
battery pack even when the instrument is switched off.
It’s advisable to remove the battery pack before long peri-
ods of non-use for this reason (e.g. vacation). This pre-
vents excessive depletion, which may result in damage to
the lithium-ion batteries under unfavorable conditions.
Note
Removing the Battery Pack or Mains Module
Stored measurement data are not lost when the battery
pack or the mains module is removed. The selected
operating parameters remain in memory, although date
and time must be reentered.
End any automatic measured data recordings which are
currently running before removal. Removing the battery
pack or the mains module during storage operations may
cause data loss or corrupt memory.
Querying the Battery Pack’s Charge Level
Momentary battery capacity can be queried by clicking the
Info
item in the
General Setup
menu:
➭
Press the
MENU
key to this end.
➭
Then press the
General Setup
softkey.
➭
Select the
Info
parameter with the help of the
scroll keys.
The “Battery” parameter indicates the battery pack’s charge level
as a percentage.
Attention!
!
Disconnect the instrument from the measuring circuit be-
fore removing the
battery pack
for charging!
If the “
” symbol appears at the display, the battery pack
should be replaced as soon as possible. You can continue work-
ing with the instrument, but reduced measuring accuracy may
result.
Removing the Battery Pack
Note
Recommendation:
Turn the rotary switch to the
OFF
position and disconnect
the instrument from the measuring circuit before remov-
ing the battery pack or the mains module!
➭
Briefly press the two
locking tabs towards
each other at the
same time with
thumb and forefin-
ger, and then release
them again. Pull the
battery pack up and
out as shown in the
figure to the right.
Charging the Battery Pack
➭
Connect the
micro USB port
to the charger.
The charge LED
lights up yellow
during the charging
process. The
charging cable can
be removed as
soon as the charge
LED lights up green
at the end of the
charging process.
Attention!
!
Please observe the currently valid safety notes for lith-
ium-Ion batteries!
Installing the Battery Pack
➭
Push the battery pack back in until resistance is plainly per-
ceptible.
➭
In order to snap the battery back into place, press the two
locking tabs towards each other at the same time with thumb
and forefinger.
➭
Push the battery back into its final position and release the
locking tabs.
Message
Function
Meaning
FUSE
Current measurement
Blown fuse
In all operating modes
Battery voltage has fallen below 3.3 V
0L
Measurement
Indicates overflow
b
a
a
Press
Tabs
Z270A/G
Micro USB
5 V DC, 2 A
Approx. 2 h
270A
Z270A/G
Z270L
Z270L
