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03/ 2020
BENNING MM 10–PV/ MM 10–1
8.2.1 Voltage/ frequency measurement (switch position:
,
,
m
,
AutoV/LoZ
)
- Use the rotary switch
9
to select the required function
,
,
m
or,
AutoV/LoZ
(BENNING MM 10-1) on BENNING MM 10-PV/ MM 10-1.
- Connect the black safety measuring lead to the COM jack
K
of the BENNING
MM 10-PV/ MM 10-1.
- Connect the red safety measuring lead to the jack +
L
of the BENNING
MM 10-PV/ MM 10-1.
- Bring the safety measuring leads into contact with the measuring points and
read the measured value on the digital display
1
.
- In the
function, the function key (blue)
4
can be used for switching over
to frequency measurement (Hz).
see fig. 2: Direct voltage measurement
see fig. 3: Alternating voltage measurement (frequency measurement)
see fig. 4b: AutoV/Loz voltage measurement (BENNING MM 10-1)
Note:
On the digital display
1
, the AutoV/ LoZ function (BENNING MM 10-1) is shown
by the „
Auto LoZ
“ symbol. It automatically determines the required measuring func-
tion (AC/ DC voltage) and the ideal measuring range. Furthermore, the input re-
sistance is reduced to approx. 3 kΩ in order to suppress inductive and capacitive
voltages (reactive voltages).
8.2.2 Voltage measurement (switch position
) using the BENNING TA PV
measuring adapter (BENNING MM 10-PV)
For voltage measurements on PV systems with system voltages
of up to 1500 V DC, use the BENNING TA PV measuring adapter
and the switch position “PV” of the BENNING MM 10-PV only.
The measuring adapter reduces the voltage applied to the
BENNING MM 10-PV and is to be used exclusively for the BEN-
NING MM 10-PV!
Electrical danger!
- Insert the BENNING TA PV measuring adapter into the COM jack
K
and the
+ jack
L
.
- Use the rotary switch
9
to select the required function
on BENNING
MM 10-PV.
- The DC coupling mode is automatically preselected and can be set to the AC
coupling mode using the function key (blue)
4
, if necessary.
- Bring the safety measuring leads into contact with the measuring points and
read the measured value on the digital display
1
of the BENNING MM 10-PV.
Note:
If the PV measuring range is selected without the BENNING TA PV measuring
adapter being inserted, or if an incorrect measuring range is selected with the
BENNING TA PV measuring adapter being inserted, an acoustic signal is emitted
and the “Prob” symbol is shown on the digital display
1
.
An acoustic signal is emitted if the wrong coupling mode (e.g. AC instead of DC)
is selected in the PV measuring range and a DC voltage greater than 30 V is con-
tacted via the BENNING TA PV measuring adapter. The incorrectly set coupling
mode is indicated in this case by a flashing symbol “DC” and “
“.
The same applies to an AC application with incorrectly set DC coupling type. An
acoustic signal is emitted and a flashing “AC” symbol and “
“ is shown on the
digital display.
see fig. 4a: PV voltage measurement using the BENNING TA PV measuring
adapter (BENNING MM 10-PV)
8.3 Current/ frequency measurement (switch position
)
(BENNING MM 10-PV)
- Use the rotary switch
9
to select the required function
, the
function key
(blue)
4
can be used to select the coupling mode (AC or DC) on BENNING
MM 10-PV.
- Connect the black safety measuring lead to the COM jack
K
of the BENNING
MM 10-PV.
- Connect the red safety measuring lead to the jack +
J
of the BENNING
MM 10-PV.
- Bring the safety measuring leads into contact with the measuring points and
read the measured value on the digital display
1
.
- The function key (blue)
4
can be used for switching over to frequency meas-
urement (Hz).
see fig. 5a: Direct/ alternating current measurement (frequency measurement)
(BENNING MM 10-PV)
