GMC-I Messtechnik GmbH 29
11 List of Abbreviations and their Meanings
Voltage
U
ISO
Test voltage or nominal voltage
U AC/DC Measured voltage (sinusoidal alternating voltage)
Resistance
LIMIT Limit value for insulation resistance or low-value resis-
tance
Offset Correction value for measurement cable resistance
R
ISO
Insulation resistance
R
LO
Low-value resistance (cable resistance)
Fuse
FUSE “Blown fuse” message
12 Maintenance
12.1 Battery and Rechargeable Battery Operation
When only one filled segment remains in the battery symbol,
install a new set of batteries or charge the rechargeable batteries.
Check to make sure that no leakage has occurred at batteries or
rechargeable batteries at short, regular intervals, or after the
instrument has been in storage for a lengthy period of time. If
leakage has occurred, the electrolyte must be carefully and com-
pletely removed with a damp cloth before installing new batteries.
Replacing the Batteries
See section 3.2 and section 12.3.
12.2 Fuses
If a fuse has blown due to overload, a corresponding message
error appears at the LCD panel. The instrument’s voltage measur-
ing ranges are nevertheless still functional.
12.2.1 Fuse Link – FUSE Message
This fuse is active in all resistance measuring ranges except for
voltage measurement. A replacement fuse is included in the bat-
tery compartment (FF315mA/1000V).