PEWA BENNING MM 2 Instrucciones De Servicio página 14

Range Resolution
200 µA
2 mA
20 mA
200 mA
20 A
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
200 µA
2 mA
20 mA
200 mA
20 A
7.5 Resistance ranges
Overload protection for resistance measurements: 500 V
Range Resolution
200 Ω 0,1 Ω
2 kΩ 1 Ω
20 kΩ 10 Ω
200 kΩ 100 Ω
2 MΩ 1 kΩ
20 MΩ 10 kΩ
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
The built-in buzzer sounds if the resistance R falls below 50 W.
Range Resolution
8. Measuring with BENNING MM 2
8.1 Measurement preparation
The BENNING MM 2 must be used and stored only at the indicated storage and
working temperatures, avoid exposure to continuous sunlight.
- Check the rated voltage and current indications on the safety test leads.
The safety test leads provided with the BENNING MM 2 correspond
specifically to the rated voltage and current of the BENNING MM 2.
- Inspect the test leads for damaged insulation. If the insulation is damaged,
the test leads should be discarded immediately.
- Check test lead continuity. If the conductor in the test lead is damaged, the
leads should be discarded immediately.
- Remove test leads from circuit to be measured before turning the rotary
switch  to select another function.
- If the BENNING MM 2 is used near strong noise generating sources, the
10/ 2004
0,1 µA ± (1,0 % of reading + 2 digits)
1 µA ± (1,0 % of reading + 2 digits)
10 µA ± (1,0 % of reading + 2 digits)
100 µA ± (1,0 % of reading + 2 digits)
10 mA ± (2,0 % of reading + 3 digits)
Accuracy in 50 Hz - 400 Hz
Resolution
0,1 µA ± (1,5 % of reading + 3 digits)
1 µA ± (1,5 % of reading + 3 digits)
10 µA ± (1,5 % of reading + 3 digits)
100 µA ± (1,5 % of reading + 3 digits)
10 mA ± (2,5 % of reading + 5 digits)
± (0,8 % of reading + 4 digits)
± (0,8 % of reading + 2 digits)
± (0,8 % of reading + 2 digits)
± (0,8 % of reading + 2 digits)
± (0,8 % of reading + 2 digits)
± (2,0 % of reading + 5 digits)
1 mV ± (1,5 % of reading + 5 digits)
BENNING MM 2
Accuracy
frequency range
Accuracy
.
rms
Accuracy
Burden voltage
600 mV max.
600 mV max.
600 mV max.
900 mV max.
900 mV max.
Burden voltage
600 mV
600 mV
600 mV
900 mV
900 mV
.
rms
Maximum
test current circuit voltage
2,5 mA
200 µA
40 µA
4 µA
400 nA
40 nA
Maximum test Max. open circuit
current
1,5 mA

max.
eff
max.
eff
max.
eff
max.
eff
max.
eff
Max. open
3,2 V
0,5 V
0,5 V
0,5 V
0,5 V
0,5 V
voltage
3,2 V
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