Current Measurement - Benning MM 7-1 Instrucciones De Servicio

rated voltage and current of the BENNING MM 7-1.
- Check the insulation of the safety measuring leads. If the insulation is dam-
aged in any way, do not use the leads.
- Check the continuity of the safety measuring leads. If the conductor in the
safety measuring lead is interrupted, do not use the leads.
- Before selecting another function with the rotating switch  , always discon-
nect the safety measuring leads from the measuring point.
- Sources of strong current in the vicinity of the BENNING MM 7-1 may
cause unstable or incorrect readings.
8.2 Voltage and current measurement

Always observe the maximum voltage to earth potential!
Electrical hazard!
The maximum voltage which may be applied to the sockets
- COM- socket 
- socket for V, Ω, Hz, ,
- socket for mA range  and the
- socket for 10 A range 
of the BENNING MM 7-1 to earth is 600 V CAT IV/ 1000 V CAT III.
8.2.1 Voltage measurement
- With the rotating switch  , select the desired function ( ,
LoZ) on the BENNING MM 7-1.
- Select the voltage type to be measured (direct voltage DC, alternating volt-
age AC or AC+DC) by means of the blue key  of the BENNING MM 7-1.
- Connect the black safety measuring lead to the COM socket  on the
BENNING MM 7-1.
- Connect the red safety measuring lead to the socket  for V, Ω, Hz, ,
on the BENNING MM 7-1.
- Connect the safety measuring leads to the measuring points. Read the meas-
urement value displayed in the digital display  of the BENNING MM 7-1.
See fig. 2:
See fig. 3:
Note:
On the digital display  , the "AutoV/ LoZ" function is displayed by the "Auto
Sense/ Lo-Z" symbol. It automatically determines the required measuring func-
tion (AC/ DC voltage) and the ideal measuring range. Moreover, the input resist-
ance is reduced to approx. 3 kΩ in order to suppress inductive and capacitive
voltages (reactive voltages).
8.2.2

Current measurement

- With the rotating switch  , select the desired range and function (mA or A)
on the BENNING MM 7-1.
- Select the current type to be measured (direct current DC, alternating cur-
rent AC or AC+DC) by means of the blue key  of the BENNING MM 7-1.
- Connect the black safety measuring lead to the COM socket  on the
BENNING MM 7-1.
- Connect the red safety measuring lead to the socket for mA range,  for
current up to 600 mA or to the socket for the 10 A range,  for currents
greater than 600 mA up to 10 A on the BENNING MM 7-1.
- Connect the safety measuring leads to the measuring points. Read the meas-
urement value displayed in the digital display  of the BENNING MM 7-1.
See fig. 4:
See fig. 5:
8.3 Resistance measurement
- With the rotating switch  , select the desired function (Ω,
BENNING MM 7-1.
- Connect the black safety measuring lead to the COM socket  on the
BENNING MM 7-1.
- Connect the red safety measuring lead to the socket  for V, Ω, Hz, ,
on the BENNING MM 7-1.
- Connect the safety measuring leads to the measuring points. Read the meas-
urement value displayed in the digital display  of the BENNING MM 7-1.
See fig. 6:
8.4 Diode testing
- With the rotating switch  , select the desired function ( ,
BENNING MM 7-1.
- Using the blue key  on the BENNING MM 7-1, switch to diode testing.
07/ 2016

DC-voltage measurement
AC-voltage measurement
DC-current measurement
AC-current measurement
Resistance measurement
BENNING MM 7-1

, , AutoV/
) on the
) on the
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