HT instruments SOLAR300N - Manual (Page 170)

SOLAR300 - SOLAR300N
EN - 168
5. Connect the AC clamps to the Phase L1, L2, L3 conductors by respecting the
direction of the arrow on the clamps as indicated in Fig. 251. Connect the output of
the clamps to the I1, I2, I3 input of the instrument respectively
6. Supply the electric system considered in case it was temporarily put out of service for
connecting the instrument
7. Check that the active power Pac is positive and that the power factor Pf corresponds to
the load (typically equal to 1.00 for measures made downstream the inverter in
photovoltaic systems). In case of negative values of the active power, check the
connection of the amperometric clamps. In case of doubt, to check the connections
made, it can be useful to temporarily modify the settings and the connections of
the instrument in order to perform a measurement in three-phase 3-wire mode
downstream the inverter (see par. 5.3.1 and 7.13)
8. Turn on the SOLAR-02 unit by means of the relevant key on the unit itself. The unit will
remain on hold. Select the type of irradiance sensor on the unit (see § 4.5 of SOLAR-
02 user manual).
9. Connect the SOLAR-02 unit to the main unit by means of the USB cable. The main unit
must display the message “SOLAR-02 connected”. Should this message not appear,
disconnect and connect again the USB connector
10. Press the GO/STOP key to start the recording on a PV system (see § 5.6). The icon
is shown on the display of instrument and the “HOLD” message along with the
waiting time to reach the “00” instant condition are displayed on SOLAR-02 unit.
11. Whenever the icon will appear on the display of instrument from the
beginning of the first minute after pressing the GO/STOP key the test has been
started on a photovoltaic system. Disconnect the SOLAR-02 from main unit and and
bring it near the photovoltaic cells. The “Recording…” message is displayed on
SOLAR-02.
12. Position the pyranometer on the plane of the photovoltaic panels. In case of use of
reference cell please refer to § 4.2 of it’s user manual for a correct fixing
13. Position the temperature sensor typically in contact wuth the back of the panel, fixed by
tape and do not touch it to avoid a wrong measurement
14. Connect the irradiation and temperature probes respectively to the inputs PYRA/CELL
and TEMP of the SOLAR-02 unit. Wait some seconds in order to permits a stable
measure by probes
15. Wait for “READY” message displayed on SOLAR-02. This event indicated that the
instrument has detected some data with solar irradiation > minimum limit threshold (see
§ 5.3.3.3)
16. Wait at least 1 minute in order to recording more valid samples than disconnect
the irradiation and temperature probes from the SOLAR-02 unit, bring the SOLAR-02
unit next to the to the main unit and connect them by means of the USB cable. The
main unit must display the message “SOLAR-02 connected” (should this message not
appear, disconnect and connect again the USB connector)
17. Press the GO/STOP key on the main unit to stop the recording
18. After the automatic data transfer phase, the instrument will automatically display the
maximum performance values relative to AC and DC efficiency and automatically
provide to save the recording into the memory of meter