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20 GMC-I Messtechnik GmbH
Influence Variables and Effects
1)
With zero balancing
2)
Inherent deviation values valid as of a display value
of at least 10% of the measuring range.
3)
Except for sinusoidal waveform
Influence
Variable
Influence Range
Measured Quantity /
Measuring Range
1)
Influence Effect
ppm/K
Temperature
0 °C ...
+21 °C
and
+25 °C ...
+40 °C
V8
V 100
mA 20
mA 100
100 Ω ... 100 kΩ 8
1MΩ 15
10 MΩ 100
Hz 50
°C15
Influence
Variable
Influence Range
Measured Quantity /
Measuring Range
1)
Influence Effect
3)
Measurement
Quantity
Waveform
Crest
factor
CF
1 ... 3
V, mA
±0.2% of rdg.
> 3 ...
5
±0.5% of rdg.
10 ±2% of rdg.
Influence
Variable
Influence Range
Measured Quantity /
Measuring Range
1)
Influence Effect
Relative
Humidity
75%
3 days
device off
V, m A , Ω
Hz
°C
1 x inherent deviation
Influence
Variable
Influence Range
Measuring
Range
Damping
±dB
Common-
Mode
Interference
Voltage
Interference quantity max. 600 V V > 90 dB
Interference quantity max. 600 V
50 Hz, 60 Hz sine
100 mV ...
10 V
> 80 dB
100 V > 70 dB
600 V > 60 dB
Series-Mode
Interference
Voltage
Interference quantity V ,
respective measuring range nominal value,
max. 600 V , 50 Hz, 60 Hz sine
V > 60 dB
Interference quantity max. 600 V V > 60 dB
1
10
CF
0
50000 10000075000
Voltage and Current Measurement
The allowable crest factor (CF) for the periodic quantity to be measured
is dependent upon the displayed value:
Digits
5
20


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