Voltage Measurement - Benning MM P3 Bedienungsanleitung

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 lead (black) J
- safety measuring lead (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 safety measuring leads into contact with the measuring
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 interfer-
ence, if the safety measuring leads 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 safety measuring leads into contact with the measuring
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 leads 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:
02/ 2011
DC voltage measurement
AC voltage measurement
Resistance measurement
Diode test
BENNING MM P3
, Hz 9
) to switch over to frequency
AC
, ) by means of the rotary switch 7 of the
, ) by means of the rotary switch 7 of the
) by means of the „SELECT" key 5 of the
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