07/ 2016
BENNING MM 12
28
DC
40.00 mV
0.01 mV
± (0.03 % of measured value + 4 digits)
400.0 mV
0.1 mV
± (0.03 % of measured value + 2 digit)
4.000 V
1 mV
40.00 V
10 mV
400.0 V
0.1 V
1000 V
1 V
AUTOV LoZ
400.0 V
0.1 V
± (2.0 % of measured value + 5 digits),
VAC 40 Hz - 1 kHz and VDC
1000 V
1 V
[1] Frequency range: 40 Hz - 5 kHz
[2] Frequency range: 40 Hz - 1 kHz
[3] Below 10 % of the final measuring range value plus 2 digits
[4] Below 10 % of the final measuring range value plus 10 digits, < 50 kHz
[5] Below 10 % of the final measuring range value plus 20 digits, > 50 kHz
Input resistance:
10 MΩ, < 100 pF
LoZ input resistance:
3 kΩ
Frequency range AC:
40 Hz - 100 kHz
Additional specifications:
The measured value is obtained and displayed as a true effective value (TRUE RMS). Selectable
coupling type: AC or AC+DC. For the coupling AC+DC an additional error of 1 % must be taken
into account. In the case of non-sinus-shaped curves the display value becomes less precise.
Thus an additional error results for the following crest factors:
Crest factor from 1.4 to 2.0 additional 1.0 %
Crest factor from 2.0 to 2.5 additional 2.5 %
Crest factor from 2.5 to 3.0 additional 4.0 %
HFR high-frequency suppression (low-pass filter):
AC accuracy plus 1 % of the measured value, 40 Hz to 400 Hz
Limiting frequency (- 3 dB): 800 Hz
Attenuation: approx. - 24 dB
Peak-Hold: ± 3 % of the measured value + 200 digits, 40 Hz to 1 kHz, sinusoidal
7.2 Current ranges
Overload protection:
-
440 mA (1000 V) fuse, 10 kA, rapid on mA input
-
11 A (1000 V) fuse, 20 kA, rapid on A input
Function
Measuring
range
Resolution
Measurement accuracy
AC
40.00 mA
0.01 mA
Sine curve:
± (0.8 % of measured value + 3 digits), 40 Hz - 70 Hz [2]
± (2.0 % of measured value + 5 digits), 70 Hz - 1 kHz [2]
± (2.0 % of measured value + 5 digits), 1 kHz - 10 kHz [3]
400.0 mA
0.1 mA
4.000 A [1]
1 mA
10.00 A [1]
10 mA
DC
40.00 mA
0.01 mA
± (0.2 % of measured value + 2 digit)
400.0 mA
0.1 mA
4.000 A
1 mA
10.00 A
10 mA
± (0.2 % of measured value + 3 digits)
[1] Frequency range: 40 Hz - 1 kHz
[2] Below 10 % of the final measuring range value plus 2 digits
[3] Below 10 % of the final measuring range value plus 10 digits
Input resistance:
< 2 Ω on mA input, < 0,1 Ω on A input
Frequency range: 40 Hz - 10 kHz
Max. measuring time:
-
1 minute on A input (pause > 20 minutes)
-
10 minutes on mA input (pause > 20 minutes)
Additional specifications:
The measured value is obtained and displayed as a true effective value (TRUE RMS). Selectable
coupling type: AC or AC+DC. For the coupling AC+DC an additional error of 1 % must be taken
into account. In the case of non-sinus-shaped curves the display value becomes less precise.
Thus an additional error results for the following crest factors:
Crest factor from 1.4 to 2.0 additional 1.0 %
Crest factor from 2.0 to 2.5 additional 2.5 %
Crest factor from 2.5 to 3.0 additional 4.0 %
HFR high-frequency suppression (low-pass filter):
AC accuracy plus 1 % of the measured value, 40 Hz to 400 Hz
Limiting frequency (- 3 dB): 800 Hz
Attenuation: approx. - 24 dB
Peak-Hold: ± 3 % of the measured value + 200 digits, 40 Hz to 1 kHz, sinusoidal
