Current Measurement - Benning MM 7 Instrucciones De Servicio

The maximum voltage which may be applied to the sockets
- COM- socket 
- socket for V, Ω, Hz, ºC, ºF,
- socket for mA range  and the
- socket for 10 A range 
of the BENNING MM 7 to earth is 1000 V.
Electrical­­hazard!­­

Maximum­­ switching-circuit­­ voltage­­ for­­ current­­ measurement,­­
500­­V!­­If­­the­­fuse­­triggers­­over­­500­­V,­­the­­unit­­may­­be­­damaged.­­
A­­damaged­­unit­­may­­represent­­an­­electrical­­hazard!
8.2.1 Voltage measurement
- With the rotating switch , select the desired function (V) on the
BENNING MM 7.
- With the blue button  on the BENNING MM 7, select the type of voltage
to be measured (DC or AC voltage)
- Connect the black safety test lead to the COM socket  on the
BENNING MM 7.
- Connect the red safety test lead to the socket  for V, Ω, Hz, ºC, ºF,
the BENNING MM 7.
- Connect the safety test leads to the measuring points. Read the measurement
value displayed in the digital display  of the BENNING MM 7.
See fig. 2:
See fig. 3:
8.2.2

Current measurement

- With the rotating switch , select the desired range and function (mA or A)
on the BENNING MM 7.
- With the blue button  on the BENNING MM 7, select the type of current
to be measured (DC or AC current).
- Connect the black safety test lead to the COM socket  on the
BENNING MM 7.
- Connect the red safety test lead to the socket for mA range,  for current
up to 400 mA or to the socket for the 10 A range,  for currents greater than
400 mA up to 10 A on the BENNING MM 7.
- Connect the safety test leads to the measuring points. Read the measurement
value displayed in the digital display  of the BENNING MM 7.
See fig. 4:
See fig. 5:
8.3­­ Resistance­­measurement
- With the rotating switch , select the desired function (Ω) on the
BENNING MM 7.
- Connect the black safety test lead to the COM socket  on the
BENNING MM 7.
- Connect the red safety test lead to the socket  for V, Ω, Hz, °C, °F,
the BENNING MM 7.
- Connect the safety test leads to the measuring points. Read the measurement
value displayed in the digital display  of the BENNING MM 7.
See fig. 6:
8.4­­ Diode­­testing
- With the rotating switch , select the desired function (Ω/ buzzer and diode
symbol) on the BENNING MM 7.
- Using the blue button  on the BENNING MM 7, switch to diode testing
(press button twice).
- Connect the black safety test lead to the COM socket  on the
BENNING MM 7.
- Connect the red safety test lead to the socket  for V, Ω, Hz, °C, °F,
the BENNING MM 7.
- Contact the diode connections with the safety test leads and read the meas-
urement value displayed in the digital display  of the BENNING MM 7.
- For a normal silicone diode located in flow direction, the flow voltage
between 0.500 V and 0.900 V is displayed. If "000" appears in the display,
there may be a short circuit in the diode. If "1" appears in the display, there
may be an interruption in the diode.
- For a diode located in the non-conducting direction "OL" appears. If the
diode is defective, "000" or other figures appear.
See fig. 7:
8.5­­ Continuity­­testing­­with­­buzzer
10/ 2006

DC-voltage measurement
AC-voltage measurement
DC-current measurement
AC-current measurement
Resistance measurement
Diode testing
B ENNING MM 7

on
on
on
8