Benning MM 1-1 Instrucciones De Servicio página 25

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 al-
*3
ready 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 *5 10 mA
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),
Measuring range Resolution
2 A
10 A *5
The measured value is obtained by mean value rectification and is displayed
as r.m.s. value.
*4
The measuring accuracy is specified for a sinusoidal curve. In case of non-
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 %
*5 The maximum permissible operating time is limited from current value ≥ 7 A.
measuring value
10 A
9 A
8 A
7 A
7.5 Resistance measuring range
Overload protection for resistance measurements: 600 V
Measuring
range *6
200 Ω
2 kΩ
20 kΩ
200 kΩ
2 MΩ
20 MΩ
*6
For automatic range selection (AUTO), the change-over point might be al-
ready at a value of 1400!
7.6 Diode and continuity test
The stated measuring accuracy is applies to a range between 0.4 V and 0.8 V.
Overload protection for diode tests: 600 V
The built-in buzzer sounds in the case of a resistance R less than 250 Ω up
to 850 Ω. For a resistance R higher than 850 Ω, the buzzer does not emit an
acoustic signal.
Measuring Reso-
range lution
10 mV
03/ 2019
± (1.0 % of the measured value + 3 digits)
± (1.0 % of the measured value + 3 digits)
Measuring accuracy
1 mA ± (1.5 % of the measured value + 5 digits)
10 mA ± (1.5 % of the measured value + 5 digits)
max. measuring time
Resolution
0.1 Ω ± (0.7 % of the measured value + 3 digits)
1 Ω ± (0.7 % of the measured value + 3 digits)
10 Ω ± (0.7 % of the measured value + 3 digits)
100 Ω ± (0.7 % of the measured value + 3 digits)
1 kΩ ± (1.0 % of the measured value + 3 digits)
10 kΩ ± (1.5 % of the measured value + 3 digits)
Measuring accuracy
± (1.5 % of the measured value + 5 digits)
BENNING MM 1-1/ 1-2/ 1-3
Measuring accuracy
within the frequency
*4
range 50 Hz - 500 Hz
4 min.
5 min.
7 min.
10 min.
Measuring accuracy
eff
Voltage drop
max. 2 V
max. 2 V
Voltage drop
max. 2 V
max. 2 V
min. pause time
10 min.
10 min.
10 min.
10 min.
eff
Max. open-circuit
voltage
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
Max. measuring Max. open-
current circuit voltage
1.5 mA

2.0 V
16