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Benning PV 1.1 Manual

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09/ 2012
BENNING PV 1-1
19
the BENNING PV 1-1.
- Switch on the BENNING CC 3 current clamp adapter and select the 40 A range.
- Switch on the BENNING PV 1-1 and press the
Auto
-key
3
until the symbol B for current
clamp measurement is displayed.
- For direct current (DC) measurements, press the null balance key (ZERO) of the
BENNING CC 3 until a current value of approx. 0 A is displayed.
- Enclose the single-wire live conductor by means of the current clamp adapter.
- The measured current will be shown on the display
1
.
See gure 8: AC/ DC current measurement by means of optional current clamp adapter
BENNING CC 3
8.6 Measurement on several identical PV modules/ PV strings
For PV systems with several identical PV strings, the open-circuit voltages and short-circuit cur-
rents must be compared with each other at stable radiation conditions. The values should be
identical and should have a maximum deviation of 5 % (at stable radiation conditions). Moreover,
the measured values have to be compared with the values to be expected.
- At the beginning of the series of measurements, press and hold the -key
8
and the
-key
6
in order to delete the measured value memory.
- Connect the first PV string of the PV generator to the BENNING PV 1-1.
- Press the
Auto
-key
3
to start the automatic measurement of the first PV string.
- Press the -key
8
to store the measured values.
- Connect the next PV string to the BENNING PV 1-1 and press the
Auto
-key
3
to start the
automatic measurement.
- Press the -key
8
to store the measured values.
- Repeat this procedure for all identical PV strings at stable radiation conditions.
- After measurement, the stored measured values can be recalled pressing the -key
6
. As
soon as a measured value deviates by more than 5 % from the average value of all stored
measured values regarding the open-circuit voltage or short-circuit current, the ">5%" sym-
bol O starts flashing.
- To call the average values, press the -key
6
repeatedly until the storage location 0 is
displayed. The average values of the open-circuit voltage and of the short-circuit current are
shown on the display
1
.
See gure 6: Automatic solar panel measurement, ISO measurement via earthing conductor
8.7 Measured value memory
8.7.1 Storing measured values
The BENNING PV 1-1 can store up to 200 display screens. Depending on the measure-
ments carried out, the values for protective conductor resistance, open-circuit voltage, short-
circuit current, insulating resistance with testing voltage and even the measured AC/DC current
( BENNING CC 3) are stored with a date/ time stamp.
- Press the -key
8
to store the displayed measured values to the first free storage location.
Successful storage will be confirmed by the "STORE" symbol L on the LC display
1
.
8.7.2 Calling measured values
- Press the -key
6
to recall the stored measured values with the corresponding storage
location number N. The symbol “RECALL” M is displayed
1
. The storage location number
N is shown on the display
1
.
- Press the -key
6
to go to the previous storage location.
8.7.3 Deleting the measured value memory
- To delete the entire measured value memory, press the
-
key
8
and the -key
6
.
8.7.4 Warning in case of the measured value deviating by 5 %
- In case the displayed measured value memory (open-circuit voltage and short-circuit cur-
rent) deviates by 5 % from the average value of all stored measured values, the "5%" symbol
starts flashing.
8.7.5 Average value of the entire measured value memory regarding the open-circuit voltage
and short-circuit current
- Press the -key
6
repeatedly until the storage location 0 N is shown on the display
1
.
The symbol “RECALL” M is displayed
1
.
- The storage location 0 N calculates the average values for open-circuit voltage and short-
circuit current from all stored measured values.
8.7.6 Reading out the measured value memory via the USB interface
To read out the measured values via the USB interface
7
, you have to install the hardware driver
from the "Treiber-driver" directory on the enclosed CD-ROM and then the download program
from the CD-ROM's "Programm-program" directory on your PC once.
In order to download the data, please proceed as follows:
- Disconnect all safety measuring leads from the BENNING PV 1-1.
- Connect the BENNING PV 1-1 to your PC by means of the USB connecting cable.
- The hardware driver is installed automatically on a free COM port and confirms that the new
hardware can be used.
… 25 …


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