Benning MM 7-1, Руководство по эксплуатации, Страница: 27 / 184

07/ 2016 BENNING MM 7-1 19
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Measuring range Resolution Measurement accuracy
60 mA 10 µA ± (0.8 % of r 5 digits)
600 mA 100 µA ± (0.8 % of r 5 digits)
6 A 1 mA ± (0.8 % of r 5 digits)
10 A 10 mA ± (0.8 % of r 5 digits)
7.5 AC/ AC+DC current ranges
The input resistance is 10 MΩ parallel < 100 pF. The measurement value is
obtained as a true RMS value and displayed as such. With non-sinusoidal
curves, the value displayed is less accurate. This results in an additional error
for the following crest factors:
Crest factor of 1.4 to 2.0, additional error + 1.0 %.
Crest factor of 2.0 to 2.5, additional error + 2.5 %
Crest factor of 2.5 to 3.0, additional error + 4.0 %
Overload protection:
- 440 mA (1000 V) fuse, 11 kA, rapid on mA input
- 11 A (1000 V) fuse, 20 kA, rapid on 10 A input
Max. measuring time:
- 10 A range: 3 minutes (pause > 20 minutes)
- 600 mA range: 10 minutes (pause > 20 minutes)
AC Measuring range Resolution
Measurement accuracy
in frequency range 50 Hz - 1 kHz
60 mA 10 µA ± (1.2 % of r 5 digits)
600 mA 100 µA ± (1.2 % of r 5 digits)
6 A 1 mA ± (1.2 % of r 5 digits)
10 A 10 mA ± (1.2 % of r 5 digits)
AC+DC Measuring range Measurement accuracy in frequency range 50 Hz - 1 kHz
mA ± (2 % of r 10 digits)
A ± (2 % of r 10 digits)
7.6 Resistance ranges
Overload protection: 1000 V
AC/ DC
Measuring
range
Resolution Measurement accuracy
Max. meas.
current
Max. no-load
voltage
600 Ω 0.1 Ω ± (0.8 % of r 5 digits) 100 µA 2.5 V
6 kΩ 1 Ω ± (0.8 % of r 5 digits) 100 µA 2.5 V
60 kΩ 10 Ω ± (0.8 % of r 5 digits) 60 µA 0.6 V
600 kΩ 100 Ω ± (0.8 % of r 5 digits) 6 µA 0.6 V
6 MΩ 1 kΩ ± (0.8 % of r 5 digits) 600 nA 0.6 V
40 MΩ* 10 kΩ ± (1.0 % of r 5 digits) 60 nA 0.6 V
* Measured values > 10 MΩ might cause changing values on the display
(max. ± 50 digits).
7.7 Diode testing
Overload protection: 1000 V
AC/ DC
Measuring
range
Resolution Measurement accuracy Max. meas. current
Max. no-load
voltage
2 V 1 mV ± (1.5 % of r 5 digits) 0.1 mA 2.5 V
7.8 Continuity testing
Overload protection: 1000
V
AC/ DC
The built-in buzzer sounds in the case of a resistance R less than 30 Ω up
to 100 Ω. For a resistance R higher than 100 Ω, the buzzer does not emit an
acoustic signal.
Measuring
range Resolution
Measurement accuracy
Max. meas.
current
Max. no-load
voltage
600 Ω 0.1 Ω ± (0.8 % of r 5 digits) 0.1 mA 2.5 V