GMC-I Gossen-Metrawatt GmbH 15
GB
7.1 Transient Overvoltages
METRA HIT 22/23/24/25/26 multimeters are protected
against transient overvoltages in the voltage measuring
range up to 8 kV with a halftime value for front time of
1.2/50 μs. Due to the fact that overvoltages of greater
duration can be expected when performing measure-
ments, for example at transformers or motors,we recom-
mend our KS30 measuring adapter for such cases. It pro-
vides for protection against transient overvoltages of up to
6 kV with a halftime value for front time
of 10/1000 μs.
Continuous loading capability is equal to 1200 V
eff
. Addi-
tional influence error due to use of the
KS30 measuring adapter amounts to approximately –2%.
7.2 Voltage Measurements for Greater than 1000 V
Voltages of greater than 1000 V can be measured with a
high-voltage probe, for example the HV3
1)
or the HV30
2)
from GMC-I Gossen-Metrawatt GmbH. The earthing termi-
nal must be connected to ground for measurements of this
type. Observe all required safety precautions!
1)
HV3: 3 kV
2)
HV30: 30 kV, for (DC) voltages only
Voltage Measurements for Greater than 1000 V
with the HV3 High-Voltage Probe
black
black
red
x1000
x100
1000V
V
F
°
C
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