Electrical Specifications - Benning MM 1-1 Instrucciones De Servicio

No protection against water, (0 – second index).
- 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 MM 1-1/ 1-2/ 1-3 can be stored at
temperatures between - 15 °C and + 60 °C (air humidity of 0 to 80 %).
During storage, the battery should be removed.
7. Electrical specifications
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 steps 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
The input resistance is 10 MΩ.
Measuring
Resolution
range
*3
200 mV
2 V
20 V
200 V
1000 V
7.2 AC voltage ranges
The input resistance is 10 MΩ in parallel 100 pF.
Measuring
Resolution
range
*3
200 mV 100 µV
2 V 1 mV
20 V 10 mV
200 V 100 mV
750 V
The measured value of the BENNING MM 1-1/ 1-2/ 1-3 is obtained by mean
value rectification and is displayed as r.m.s. value.
The measuring accuracy is specified for a sinusoidal curve. In case of non
*1
sinusoidal curves, the accuracy of the displayed value decreases. Thus, an
additional error results for the following crest factors:
Crest factor from 1.4 to 3.0 additional error ± 1.5 %
Crest factor from 3.0 to 4.0 additional error ± 3 %
Applies to sinusoidal curves of 50 Hz/ 60 Hz
*2
For automatic range selection (AUTO), the change-over point might be
*3
already at a value of 1400!
7.3 DC current ranges (BENNING MM 1-2/ 1-3)
Overload protection:
- 10 A (600 V) fuse, quick-acting, 50 kA, at the 10 A input (BENNING MM 1-2/ 1-3),
Measuring
Resolution
range
2 A 1 mA
10 A 10 mA
*2
7.4 AC current ranges (BENNING MM 1-2/ 1-3)
Overload protection:
- 10 A (600 V) fuse, quick-acting, 50 kA at the 10 A input (BENNING MM 1-2/ 1-3),
11/ 2007
100 µV ± (0.5 % of the measured value + 2 digits)
1 mV ± (0.5 % of the measured value + 2 digits)
10 mV ± (0.5 % of the measured value + 2 digits)
100 mV ± (0.5 % of the measured value + 2 digits)
1 V ± (0.5 % of the measured value + 2 digits)
Measuring accuracy *
frequency range 50 Hz - 300 Hz
± (2.0 % of the measured value + 5 digits) *
± (1.5 % of the measured value + 5 digits) *
frequency range 50 Hz - 500 Hz
± (1.5 % of the measured value + 5 digits) *
± (1.5 % of the measured value + 5 digits) *
1 V ± (1.5 % of the measured value + 5 digits) *
± (1.0 % of the measured value + 3 digits)
± (1.0 % of the measured value + 3 digits)
BENNING MM 1‑1/ 1‑2/ 1‑3
Measuring accuracy
1 within the
Measuring accuracy

Overload
protection
1000 V
DC
1000 V
DC
1000 V
DC
1000 V
DC
1000 V
DC
Overload
protection
2 750 V
eff
2 750 V
eff
2 750 V
eff
2 750 V
eff
2
750 V
eff
Voltage drop
max. 2 V
max. 2 V
15