Ambient Conditions; ElectricalSpecifications - Benning CM 1-1 Notice D'emploi

5.1.17 Largest cable diameter: 27 mm
6.

Ambient conditions

- The BENNING CM 1-1/ 1-2 is intended for measurements under dry ambi-
ent conditions,
- Maximum barometric height for measurements: 2000 m,
- Overvoltage category / installation category: IEC 60664-1/ IEC 61010-1
→ 600 V category III,
- Contamination class: 2,
- Protection category: IP 30 (DIN VDE 0470-1 IEC/ EN 60529)
3 – first index: protection against access to dangerous parts and protection
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. Electricalspecifications

Note: The measuring accuracy is specified 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
Resolution
range
200 V
600 V
7.2 AC voltage ranges ( BENNING CM 1-2)
The input resistance is 10 MΩ in parallel 100 pF.
Measuring
Resolution
range
200 V
600 V
7.3 AC current ranges
BENNING CM 1-1
Measuring
Resolution
range
20 A 0.01 A
200 A 0.1 A
400 A
BENNING CM 1-2
Measuring
Resolution
range
40 A 0.1 A
200 A 0,1 A
400 A
* The measured value is obtained by mean value rectification and is displayed
1
as r.m.s. value. Its calibration is adapted to a sinusoidal curve.
* The stated accuracy is specified for conductors that are centrally clamped
2
by means of the current clamp L (see figure 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.
02/ 2018
0.1 V ± (1.0 % of the measured value + 2 digits)
1 V ± (1.0 % of the measured value + 2 digits)
Measuring accuracy *
0.1 V ± (1.5 % of the measured value + 5 digits)
1 V ± (1.5 % of the measured value + 5 digits)
Measuring accuracy *
the frequency range 50 Hz - 60 Hz
± (3.0 % of the measured value + 5 digits)
± (2.0 % of the measured value + 5 digits)
1 A ± (2.0 % of the measured value + 5 digits)
Measuring accuracy *
the frequency range 50 Hz - 60 Hz
± (1.9 % of the measured value + 10 digits)
± (1.9 % of the measured value + 5 digits)
1 A ± (1.9 % of the measured value + 5 digits)
BENNING CM 1-1/ 1-2
Measuring accuracy
within the frequency
1
range 50 Hz - 500 Hz
within
1
*
1 2
Overload
protection
Overload
protection
Overload
protection
within Overload
protection

600 V
eff
600 V
eff
600 V
eff
600 V
eff
600 A
eff
600 A
eff
600 A
eff
600 A
eff
600 A
eff
600 A
eff
11