10/ 2004
BENNING MM 4
12
- Maximum barometric height during measurement: 2000 m.
- Overvoltage category / set-up category: IEC 664/ IEC 1010 600 V category
II; (300 V category III).
- Degree of contamination: II.
- Protection Class: IP 30 (DIN VDE 0470-1 IEC/ EN 60529)
IP 30 means: Protection against access to dangerous parts and protection
against solid impurities of a diameter > 2.5 mm, (3 - first index). No
protection against water, (0 - second index).
- Operating temperature and relative humidity:
Multimeter
- At operating temperature of 0 °C to 50 °C: relative humidity under 80 %.
- current transducer:
At operating temperature of 0 °C to 45 °C: relative humidity under 75 %.
- Storage temperature:
The BENNING MM 4 can be stored at temperatures from -20 °C to + 60 °C.
The batteries must be removed from the unit.
7. Electrical data
Note: The measurement accuracy is stated as the sum of
- a relative proportion of the reading and
- a number of digits (i.e. numerical steps of the last place).
This measurement accuracy applies for a temperature of 23 °C and a relative
humidity under 75 %.
Sections 7.1 to 7.4 refer to the connection of the Multimeter to the circuit being
measured (current transducer removed). Section 7.6 refers to the combination
of Multimeter with current transducer in place.
7.1 DC voltage ranges
The input resistance is 9 MΩ
Measuring range Resolution
Accuracy
Accuracy overload
protection
4.2 V
1 mV
± (0,5 % of r 2 digits)
600 V
eff
600 V
DC
42 V
10 mV
± (0,5 % of r 2 digits)
600 V
eff
600 V
DC
420 V
100 mV
± (0,5 % of r 2 digits)
600 V
eff
600 V
DC
600 V
1 V
± (0,5 % of r 2 digits)
600 V
eff
600 V
DC
7.2 AC voltage ranges
The input resistance is 9 MΩ parallel 100 pF. The reading is obtained by mean-
value rectification and indicated as effective value
Measuring range Resolution
Accuracy
Accuracy overload
protection
4.2 V
1 mV
± (1.5 % of r 5 digits)
in frequency range 40 Hz - 300 Hz
600 V
eff
600 V
DC
42 V
10 mV
± (1.5 % of r 5 digits)
in frequency range 40 Hz - 500 Hz
600 V
eff
600 V
DC
420 V
100 mV
± (1.5 % of r 5 digits)
in frequency range 40 Hz - 500 Hz
600 V
eff
600 V
DC
600 V
1 V
± (1.5 % of r 5 digits)
in frequency range 40 Hz - 500 Hz
600 V
eff
600 V
DC
7.3 Resistance ranges
No-load voltage: approx. 1.3 V - 3.3 V, max. test current 2.5 mA.
42 MΩ-range, response time approx. 20 s
Measuring range Resolution
Accuracy
Accuracy overload
protection
420 Ω
0,1 Ω
± (1.2 % of r 8 digits)
600 V
eff
600 V
DC
4,2 kΩ
1 Ω
± (0.9 % of r 4 digits)
600 V
eff
600 V
DC
