Voltage Measurement - Benning MM P3 Instrucciones De Servicio

8.2 Voltage 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 safety measuring line (black) J
- safety measuring line (red) for V, Ω,
of the BENNING MM P3 against ground is 600 V.
- Select the desired function (V AC) or (V DC) by means of the rotary switch 7 of
the BENNING MM P3.
- Bring the
points and read the measured value on the digital display  of the
BENNING MM P3.
- Use the „SELECT" key 5 in switch setting (V
measurement (press the key once) or to pulse-duty factor measurement (press
the key twice).
Note:
In lower voltage ranges, the „zero volt" indication might fail to appear due to
interference, if the safety measuring lines are open. Check the BENNING MM P3 for
correct functioning by short-circuiting the measuring probes.
See figure 2:
See figure 3:
8.3 Resistance measurement
- Select the desired function (Ω,
BENNING MM P3
- Bring the
points and read the measured value on the digital display  of the
BENNING MM P3.
See figure 4:
8.4 Diode test
- Select the desired function (Ω,
BENNING MM P3.
- Switch over to the diode test (
BENNING MM P3 (press the key once).
- Bring the safety measuring lines into contact with the diode connections and read
the measured value on the digital display  of the BENNING MM P3.
- For a standard Si diode applied in conduction direction, a conduction voltage
between 0.400 V and 0.900 V is displayed. „000" indicates a short-circuit inside
the diode, „OL" indicates an interruption inside the diode.
- For a diode applied in reverse direction, „OL" is indicated. If the diode is defective,
„000" or other values are indicated.
See figure 5:
12/ 2007
safety measuring
DC voltage measurement
AC voltage measurement
safety measuring
Resistance measurement
Diode test
BENNING MM P3
, Hz 9
lines into contact
) to switch over to frequency
AC
, ) by means of the rotary switch 7 of the
lines into contact
, ) by means of the rotary switch 7 of the
) by means of the „SELECT" key 5 of the
with the measuring
with the measuring

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