22
GMC-I Messtechnik GmbH
Influence Variables and Effects
Aux. Voltage Influence
(without
display)
all ranges except AC:
5 D
AC range:
20 D
Power Supply
Battery
2 x 1.5 V mignon cell
zinc-carbon cell per IEC R6
alkaline manganese cell per
IEC LR 6
Service Life
with zinc-carbon cell:
approx. 300 hr.
with alkaline manganese cell:
approx. 600 hr.
Battery Test
Automatic display of the symbol
“
“ when battery voltage falls
below the following values:
approx. 2.3 V
Influence Variable
Influence Range
Meas. Magnitude/
Measuring Range
Influence Effect
Temperature
0
C ...
+21
C
and
+25
C
... +40
C
V
0.1 x intrinsic
uncertainty/K
V
A
A
F
Hz
Influence Variable
Influence Range
(max. resolution)
Frequency
Inherent Uncertainty at Ref.
(... % of rdg. +... D)
Frequency
V
AC
4, 40, 400 V
20 Hz ... < 50 Hz
> 50 Hz
... 500 kHz
2 + 3
400 mV, 600 V
20 Hz ... < 50 Hz
> 50 Hz ... 100 Hz
2 + 3
Influence Variable
Influence Range
Meas. Magnitude/
Measuring Range
Influence Effect
Relative
Humidity
55 ... 75%
V
, A
F, Hz
1x intrinsic uncertainty
Influence Variable
Interference Magnitude
Measuring Range
Attenuation
Common Mode
Interference
Voltage
600 V DC/AC 50 Hz sinus
all V DC
> 100 dB
600 V DC
all V AC
> 100 dB
600 V AC 50 Hz sinus
400 mV / 4 V AC
> 80 dB
40 V AC
> 63 dB
400 V AC
> 43 dB
600 V AC
> 23 dB
Series-Mode
Interference
Voltage
max. 600 V AC 50/60 Hz sinus
V DC
> 43 dB
max. 600 V DC
V AC
> 55 dB
