Benning MM 8 - Page 19

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8.2.1 Voltage measuring
- Using the rotary switch  select the required function (V AC) or (V DC) on
the BENNING MM 8/ 9/ 10.
- The black safety measuring cable has to be connected to the COM jack 
on the BENNING MM 8/ 9/ 10.
- The red safety measuring cable has to be connected to the jack for V, Ω,
µA, , Hz  on the BENNING MM 8/ 9/ 10.
- Bring the safety measuring lines into contact with the measuring points, read
off measured value on the digital display  on the BENNING MM 8/ 9/ 10.
see figure 2: Direct voltage measurement
see figure 3: Alternating voltage measurement
8.2.2 Current measuring
- Using the rotary switch  select the required range and function (µA DC
BENNING MM 8/ 9/ 10, A AC or A DC BENNING MM 9/ 10).
- The black safety measuring cable has to be connected to the COM jack 
on the BENNING MM 8/ 9/ 10.
- The red safety measuring cable has to be connected to the jack for V, Ω,
µA, , Hz  (direct currents on the 6 mA) on the BENNING MM 8/ 9/ 10
or to the jack for the 10 A range  (direct or alternating currents up to 10 A)
on the BENNING MM 9/ 10.
- Bring the safety measuring lines into contact with the measuring points, read
off measured value on the digital display  on the BENNING MM 8/ 9/ 10.
see figure 4: Direct current measurement (µA range, BENNING MM 8)
see figure 5: Alternating current measurement (BENNING MM 9/ 10)
8.3 Resistance measurements
- Using the rotary switch  select the required function (Ω) on the
BENNING MM 8/ 9/ 10.
- The black safety measuring cable has to be connected to the COM jack 
on the BENNING MM 8/ 9/ 10.
- The red safety measuring cable has to be connected to the jack for V, Ω,
µA, , Hz  on the BENNING MM 8/ 9/ 10.
- Bring the safety measuring lines into contact with the measuring points, read
off measured value on the digital display  on the BENNING MM 8/ 9/ 10.
see figure 6: Resistance measurements
8.4 Diode test
- Using the rotary switch  select the required function ( ) on the
BENNING MM 8/ 9/ 10.
- The black safety measuring cable has to be connected to the COM jack 
on the BENNING MM 8/ 9/ 10.
- The red safety measuring cable has to be connected to the jack for V, Ω,
µA, , Hz  on the BENNING MM 8/ 9/ 10.
- Bring the safety measuring lines into contact with the diode con-
nections, read off measured value on the digital display  on the
BENNING MM 8/ 9/ 10.
- For a standard Si diode applied in conduction direction the conduction volt-
age between 0.400 V to 0.900 V is displayed. The display “000” indicates a
short circuit in the diode, display values “OL” indicate an interruption in the
diode.
- For a diode applied in reverse direction “OL” is displayed. If the diode is
defective, “000” or other values are shown.
see figure 7: Diode test
8.5 Continuity testing with buzzer
- Using the rotary switch  select the required function ( ) on the
BENNING MM 8/ 9/ 10.
- The black safety measuring cable has to be connected to the COM jack 
on the BENNING MM 8/ 9/ 10.
- The red safety measuring cable has to be connected to the jack for V, Ω,
µA, , Hz  on the BENNING MM 8/ 9/ 10.
- The safety measuring lines have to be brought into contact with the meas-
uring points. If the line resistance between the COM jack  and the jack
for V, Ω, µA, , Hz  is below 100 Ω, the fitted buzzer sounds on the
BENNING MM 8/ 9/ 10.
see figure 8: Continuity testing with buzzer
11/ 2006 BENNING MM 8/ 9/ 10