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Benning CM1.1 Manual

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09/ 2013
BENNING CM 1-1/ 1-2
11
against solid impurities of a diameter > 2.5 mm
0 – second index: no protection against water,
- Operating temperature and relative air humidity:
For operating temperatures from 0 °C to 30 °C: relative air humidity less than
80 %,
For operating temperatures from 31 °C to 40 °C: relative air humidity less than
75 %,
For operating temperatures from 41 °C to 50 °C: relative air humidity less than
45 %,
- Storage temperature: The BENNING CM 1-1/ 1-2 can be stored at tempera-
tures between - 20 °C and + 60 °C (air humidity of 0 to 80 %). During stor-
age, the battery should be removed.
7. Electricalspecications
Note: The measuring accuracy is specied as the sum of:
- a relative part of the measured value and
- a number of digits (i.e. counting Stepps of the last digit).
This measuring accuracy applies for temperatures from 18 °C to 28 °C and a
relative air humidity less than 80 %.
7.1 DC voltage ranges ( BENNING CM 1-2)
The input resistance is 10 MΩ.
Measuring
range
Resolution Measuring accuracy
Overload
protection
200 V 0.1 V ± (1.0 % of the measured value + 2 digits) 600 V
eff
600 V 1 V ± (1.0 % of the measured value + 2 digits) 600 V
eff
7.2 AC voltage ranges ( BENNING CM 1-2)
The input resistance is 10 MΩ in parallel 100 pF.
Measuring
range
Resolution
Measuring accuracy *
1
within the frequency
range 50 Hz - 500 Hz
Overload
protection
200 V 0.1 V ± (1.5 % of the measured value + 5 digits) 600 V
eff
600 V 1 V ± (1.5 % of the measured value + 5 digits) 600 V
eff
7.3 AC current ranges
BENNING CM 1-1
Measuring
range
Resolution
Measuring accuracy *
1
within
the frequency range 50 Hz - 60 Hz
Overload
protection
20 A 0.01 A ± (3.0 % of the measured value + 5 digits) 600 A
eff
200 A 0.1 A ± (2.0 % of the measured value + 5 digits) 600 A
eff
400 A 1 A ± (2.0 % of the measured value + 5 digits) 600 A
eff
BENNING CM 1-2
Measuring
range
Resolution
Measuring accuracy *
1
*
2
within
the frequency range 50 Hz - 60 Hz
Overload
protection
40 A 0.1 A ± (1.9 % of the measured value + 10 digits) 600 A
eff
200 A 0,1 A ± (1.9 % of the measured value + 5 digits) 600 A
eff
400 A 1 A ± (1.9 % of the measured value + 5 digits) 600 A
eff
*
1
The measured value is obtained by mean value rectication and is displayed
as r.m.s. value. Its calibration is adapted to a sinusoidal curve.
*
2
The stated accuracy is specied for conductors that are centrally clamped
by means of the current clamp
L
(see gure 4 AC current measurement).
For conductors that are not centrally clamped, an additional error of 1,5 % of
the displayed value has to be considered.
7.4 Resistance measuring range and acoustic continuity test
( BENNING CM 1-2)
Overload protection: 600 V
eff
Measuring
range
Resolution Measuring accuracy
Max. open-
circuit voltage
200 Ω 0.1 Ω ± (1,0 % of the measured value + 5 digits) 1.3 V
2 kΩ 1 Ω ± (0.7 % of the measured value + 2 digits) 1.3 V
… 17 …


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