Benning MM 8, Руководство по эксплуатации

Страница: 17 / 111

5

The measured value of the BENNING MM 8 is obtained by a mean value recti-
fication and displayed as an effective value.
The measured value of the BENNING MM 9/ 10 is obtained as a real effective
value (­TRUE RMS) and then displayed.
*1
The measuring accuracy is specified for sinusoidal curves and is valid for
indicating values below 4000 digits. For indicating values higher than 4000
digits 0.6 % have to be added to the specified measuring accuracy. In case
of non-sinusoidal curves below 2000 digits, the indicating value becomes
inaccurate. Thus, an additional error occurs for the following crest factors:
crest factor from 1.4 to 3.0 additional error ± 1.5 %
*2
valid for sinusoidal curves 50 Hz/ 60 Hz
7.3­­Direct­current­ranges
overload protection:
- 600 V
eff
at the µA input,
- 10 A (­500 V) fuse, quick-acting, at the 10 A input (­BENNING MM 9/ 10),
Measuring
range
Resolution Meas. precision Voltage drop
600 µA 0,1 µA ± (1.0 % of the measured value + 2 digits) < 4 mV/ µA
6000 µA 1 µA ± (1.0 % of the measured value + 2 digits) < 4 mV/ µA
6 A 1 mA ± (1.0 % of the measured value + 2 digits) 2 V max.
10 A 10 mA ± (1.0 % of the measured value + 2 digits) 2 V max.
7.4­ Alternating­current­ranges­ (­BENNING MM 9/ 10)
overload protection:
- 10 A (­500 V) fuse, quick-acting, at the 10 A input (­BENNING MM 9/ 10),
Measuring
range
Resolution
Meas. precision *1 within the
frequency range 50 Hz - 500 Hz
Voltage drop
6 A 1 mA ± (1.5 % of the measured value + 5 digits) 2 V max.
10 A 10 mA ± (1.5 % of the measured value + 5 digits) 2 V max.
The measured value of the BENNING MM 8 is obtained by a mean value recti-
fication and displayed as an effective value.
The measured value of the BENNING MM 9/ 10 is obtained as a real effective
value (­TRUE RMS) and then displayed.
*1
The measuring accuracy is specified for sinusoidal curves and is valid for
indicating values below 4000 digits. For indicating values higher than 4000
digits 0.6 % have to be added to the specified measuring accuracy. In case
of non-sinusoidal curves below 2000 digits, the indicating value becomes
inaccurate. Thus, an additional error occurs for the following crest factors:
crest factor from 1.4 to 3.0 additional error ± 1.5 %
7.5­ Resistance­measuring­ranges
Overload protection in the case of resistance measurements: 600 V
eff
Measuring
range
Resolution Meas. precision
Max. idling
voltage
600 Ω 0,1 Ω ± (0.7 % of the measured value + 2 digits) 1,3 V
6 k Ω 1 Ω ± (0.7 % of the measured value + 2 digits) 1,3 V
60 k Ω 10 Ω ± (0.7 % of the measured value + 2 digits) 1,3 V
600 k Ω 100 Ω ± (0.7 % of the measured value + 2 digits) 1,3 V
6 M Ω 1 k Ω ± (0.7 % of the measured value + 2 digits) 1,3 V
60 M Ω 10 k Ω ± (0.7 % of the measured value + 2 digits) 1,3 V
7.6­ Diode­and­continuity­testing
The indicated measurement precision applies in the range between 0.4 V and
0.8 V.
Overload protection for diode testing: 600 V
eff
The built-in buzzer sounds in the case of a resistance R less than 100 Ω.
Meas.
range
resolu-
tion
Meas. precision
Max. meas.
current
Max. idling
voltage
10 mV ± (1.5 % of the measured value + 5 digit) 1,5 mA 3,0 V
11/ 2006 ­BENNING­MM­8/­9/­10­