52 GMC-I Gossen-Metrawatt GmbH
Power Supply
Battery 2 x 1.5 V mignon cell
alkali manganese cell per IEC LR6
zinc carbon battery per IEC R6
Service Life with alkali manganese cell:
approx. 100 hours
with zinc carbon battery:
approx. 50 hours
Battery Test automatic display of ā ā symbol
when battery voltage falls below
approx. 2.3 V.
Battery Saver Circuit
The instrument switches itself off automatically if the mea-
surement value remains unchanged for about 10 minutes,
and if none of the operating elements are activated during
this time. Automatic shut-off can be disabled. This does
not apply to the following functions: events, stopwatch,
transmit and menu mode, continuous operation.
Fusing
Fuse for Ranges
up to 300 mA FF (UR) 1,6 A/1000 V AC/DC;
6.3 mm x 32 mm;
breaking capacity 10 kA at
1000 V AC/DC with resistive load;
protects all current measuring ranges
up to 300 mA in combination with
power diodes
Fuse for Ranges
up to 10 A (not 23S) FF (UR) 16 A/1000 V AC/DC;
10 mm x 38 mm;
breaking capacity 30 kA at
1000 V AC/DC with resistive load;
protects 3 A and 10 A ranges
up to 1000 V
Electrical Safety (except for 23S)
Protection Class II per IEC 61010-1/EN 61010-1
/VDE 0411-1
Measuring Category
III IV
Operating Voltage 1000 V 600 V
Pollution Degree 2 2
Test Voltage 6.7 kV~ per EN 61010-1:2001
/VDE 0411-1:2002
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