09/ 2013
BENNING MM 2
12
7.2 Alternating voltage ranges
The input impedance is 10 MΩ parallel 100 pF. The measurement value is
arrived at by average sensing and is displayed as the RMS value.
Range
Resolution
Accuracy in 50 Hz - 400 Hz
frequency range
Overload protection
200 mV
100 µV
± (1,3 % of r 5 digits)
500 V DC/ 350 V AC
2 V
1 mV
± (1,3 % of r 5 digits)
1200 V DC/ 850 V AC
20 V
10 mV
± (1,3 % of r 5 digits)
1200 V DC/ 850 V AC
200 V
100 mV
± (1,3 % of r 5 digits)
1200 V DC/ 850 V AC
750 V
1 V
± (1,3 % of r 5 digits)
1200 V DC/ 850 V AC
7.3 Direct current ranges
Overload protection:
- 1 A (500 V) fast blow fuse on µA/ mA input terminal
- 16 A (500 V) fast blow fuse on 20 A input terminal
Current measurements in the 20 A range must last for 30 seconds maximum
followed by a 3 minute break, 10 A continous.
Range
Resolution
Accuracy
Burden voltage
200 µA
0,1 µA
± (1,0 % of r 2 digits)
600 mV max.
2 mA
1 µA
± (1,0 % of r 2 digits)
600 mV max.
20 mA
10 µA
± (1,0 % of r 2 digits)
600 mV max.
200 mA
100 µA
± (1,0 % of r 2 digits)
900 mV max.
20 A
10 mA
± (2,0 % of r 3 digits)
900 mV max.
7.4 Alternating current ranges
The measurement value is arrived at by average sensing and is displayed as
the RMS value.
Overload protection:
- 1 A (500 V) fast blow fuse on µA/ mA input terminal
- 16 A (500 V) fast blow fuse on 20 A input terminal
Current measurements in the 20 A range must last for 30 seconds maximum
followed by a 3 minute break, 10 A continous.
Range
Resolution
Accuracy in 50 Hz - 400 Hz
frequency range
Burden voltage
200 µA
0,1 µA
± (1,5 % of r 3 digits)
600 mV
eff
max.
2 mA
1 µA
± (1,5 % of r 3 digits)
600 mV
eff
max.
20 mA
10 µA
± (1,5 % of r 3 digits)
600 mV
eff
max.
200 mA
100 µA
± (1,5 % of r 3 digits)
900 mV
eff
max.
20 A
10 mA
± (2,5 % of r 5 digits)
900 mV
eff
max.
7.5 Resistance ranges
Overload protection for resistance measurements: 500 V
rms
.
Range
Resolution
Accuracy
Maximum
test current
Max. open
circuit voltage
200 Ω
0,1 Ω
± (0,8 % of r 4 digits)
2,5 mA
3,2 V
2 kΩ
1 Ω
± (0,8 % of r 2 digits)
200 µA
0,5 V
20 kΩ
10 Ω
± (0,8 % of r 2 digits)
40 µA
0,5 V
200 kΩ
100 Ω
± (0,8 % of r 2 digits)
4 µA
0,5 V
2 MΩ
1 kΩ
± (0,8 % of r 2 digits)
400 nA
0,5 V
20 MΩ
10 kΩ
± (2,0 % of r 5 digits)
40 nA
0,5 V
7.6 Continuity and Diode Testing
The accuracy indicated below is valid in the range of 0.4 V to 0.9 V.
Overload protection for diode testing: 500 V
rms
.
The built-in buzzer sounds if the resistance R falls below 50 W.
Range
Resolution
Accuracy
Maximum test
current
Max. open circuit
voltage
1 mV
± (1,5 % of r 5 digits)
1,5 mA
3,2 V
