Benning MM 7 Instrucciones De Servicio página 18

7.4­­ AC­­ranges
The measurement reading is obtained as a true RMS reading 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 3.0, additional error + 1.5 %.
Crest factor of 3.0 to 4.0, additional error + 3.0 %.
Overload protection:
- 1 A (500 V) fuse, rapid on mA input
- 10 A (500 V) fuse, rapid on 10 A input
Measuring
Resolution
range
40 mA
400 mA
10 A
7.5­­ Resistance­­ranges
Overload protection for resistance measurements: 600 V
Measuring
Resolution
range
400 Ω
4 kΩ
40 kΩ
400 kΩ
4 MΩ
40 MΩ
7.6­­ Diode­­and­­continuity­­testing
The stated measurement accuracy applies in the range between 0.4 and 0.8 V.
Overload protection for diode testing: 600 V
The integrated buzzer sounds at resistances R < 30 Ω.
Measuring
Resolution Measurement accuracy
range
7.7­­ Capacity­­ranges
Conditions: capacitors discharged and connected in accordance with the polar-
ity stated.
Overload protection for capacity measurements: 600 V
Measuring range
4 nF
40 nF
400 nF
4 µF
40 µF
400 µF
4 mF
40 mF
7.8­­ Frequency­­ranges
Overload protection for frequency measurements: 600 V
10/ 2006
Measurement accuracy in frequency
10 µA ± (2,0 % of reading + 5 digits)
100 µA ± (2,0 % of reading + 5 digits)
10 mA ± (2,5 % of reading + 5 digits)
Measurement
accuracy
± (0.7 % of reading +
0,1 Ω
± (0.4 % of reading +
1 Ω
± (0.4 % of reading +
10 Ω
± (0.4 % of reading +
100 Ω
± (0.6 % of reading +
1 kΩ
± (1.5 % of reading +
10 kΩ
± (1,5 % of reading +
1 mV
Resolution
1 pF
10 pF
100 pF
1 nF
10 nF
100 nF
1 µF
10 µF
B ENNING MM 7
range 40 Hz - 1000 Hz
Max. meas. current
3 digits)
3 digits)
3 digits)
3 digits)
3 digits)
5 digits)
eff
5 digits)
± (3.0 % of reading + 10 digits)
± (2.0 % of reading + 5 digits)
± (2.0 % of reading + 5 digits)
± (2.0 % of reading + 5 digits)
± (2.0 % of reading + 5 digits)
± (2.0 % of reading + 5 digits)
± (3.0 % of reading + 20 digis)
± (5.0 % of reading + 20 digits)
Voltage drop
200 mV
2 V
2 V
eff
Max. no-load
700 µA
200 µA
40 µA
4 µA
400 nA
40 nA
Max.
meas. current
1,5 mA
eff
Measurement accuracy
eff

max.
eff
max.
eff
max.
eff
voltage
1,3 V
1,3 V
1,3 V
1,3 V
1,3 V
1,3 V
Max. no-load
voltage
3,0 V
6