Measuring With The Benning Mm; Preparing The Measurement; Voltage Measurement - Benning MM 1-1 Instrucciones De Servicio

The measuring accuracy applies to stable ambient temperatures < ± 34 °F. After
a change of the ambient temperature of ± 36 °F, the measuring accuracy data
will apply after 1 hour.
8. Measuring with the BENNING MM 1‑1/ 1‑2/ 1‑3

8.1 Preparing the measurement

Operate and store the BENNING MM 1-1/ 1-2/ 1-3 at the specified storage and
operating temperatures only!
Do not permanently expose the device to sunlight.
- Check stated nominal voltage and nominal current on the safety measuring
leads. Nominal voltage and current of the enclosed safety measuring leads
comply with the respective values of the BENNING MM 1-1/ 1-2/ 1-3.
- Check insulation of the safety measuring leads. If the insulation is damaged,
the safety measuring leads must be replaced immediately.
- Check the safety measuring leads for continuity. If the conductor in the
safety measuring lead is interrupted, replace the safety measuring leads
immediately.
- Before selecting another function by means of the rotary switch 8, discon-
nect the safety measuring leads from the measuring point.
- Strong sources of interference in the vicinity of the BENNING MM 1-1/ 1-2/ 1-3
might involve unstable readings and measuring errors.
8.2 Voltage and current measurement
Do not exceed the maximum permitted voltage with respect to

earth potential! Electrical danger!
The highest voltage which may be applied to the
- COM jack J
- jack for V, Ω,
- jack for the 10 A range K (BENNING MM 1-2/ 1-3)
of the BENNING MM 1-1/ 1-2/ 1-3 against ground is 1000 V.
Electrical danger!
Maximum circuit voltage for a measured current of 500 V! In

case of fuse triggering at values above 500 V, damages of the
device might be involved. A damaged device might represent
an electrical hazard!
8.2.1

Voltage measurement

- Select the desired function (V AC) or (V DC) by means of the rotary switch
8 of the BENNING MM 1-1/ 1-2/ 1-3.
- Connect the black safety measuring lead to the COM jack J of the
BENNING MM 1-1/ 1-2/ 1-3.
- Connect the red safety measuring lead to the jack for V, Ω,
BENNING MM 1-1/ 1-2/ 1-3.
- Bring the safety measuring leads into contact with the measuring
points and read the measured value on the digital display  of the
BENNING MM 1-1/ 1-2/ 1-3.
See figure 2:
See figure 3:
8.2.2 Current measurement (BENNING MM 1-2/ 1-3)
- Select the desired range and function (A AC) or (A DC) by means of the
rotary switch 8 of the BENNING MM 1-2/ 1-3.
- Connect the black safety measuring lead to the COM jack J of the
BENNING MM 1-2/ 1-3.
- Connect the red safety measuring lead to the jack for the 10 A range K (DC
or AC currents up to 10 A) of the BENNING MM 1-2/ 1-3.
- Bring the safety measuring leads into contact with the measuring
points and read the measured value on the digital display  of the
BENNING MM 1-2/ 1-3.
See figure 4:
See figure 5:
8.3 Resistance measurement
- Select the desired function (Ω) by means of the rotary switch 8 of the
BENNING MM 1-1/ 1-2/ 1-3
- Connect the black safety measuring lead to the COM jack J of the
BENNING MM 1-1/ 1-2/ 1-3.
- Connect the red safety measuring lead to the jack for V, ,
BENNING MM 1-1/ 1-2/ 1-3.
03/ 2019
, Hz 9
DC voltage measurement
AC voltage measurement
DC current measurement (BENNING MM 1-2/ 1-3)
AC current measurement (BENNING MM 1-2/ 1-3)
BENNING MM 1-1/ 1-2/ 1-3
Measurement accuracy: ± 36 °F

, Hz 9 of the
, Hz 9 of the
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