HT instruments SOLAR300N - Manual (Page 154)

SOLAR300 - SOLAR300N
EN - 152
6. 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
7. Turn on the SOLAR-01 unit by means of the relevant key on the unit itself. SOLAR-01
will switch to stand-by mode (STATUS LED flashing)Turn on the SOLAR-01 unit by
means of the relevant key on the unit itself. SOLAR-01 will switch to stand-by mode
(STATUS LED flashing)
8. Connect the SOLAR-01 unit to the main unit by means of the USB cable. The main unit
must display the message “SOLAR-01 connected”. Should this message not appear,
disconnect and connect again the USB connector
9. Press the F1 key to start the test on a PV system (see § 5.5). The icon is
shown on the display of the main unit and the LED REC flashing on unit SOLAR-01
(further to the STATUS LED, already flashing). For the meaning of the flashing of the
SOLAR-01 LEDs refer to §
10. Whenever the icon will appear on the display of instrument from the
beginning of the first minute after pressing the F1 key the test has been started on
a photovoltaic system. Disconnect the SOLAR-01 from the main unit and and bring it
near the photovoltaic cells
11. Position the pyranometer on the plane of the photovoltaic panels and 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
12. Connect the irradiation and temperature probes respectively to the inputs PYRA and
TEMP of the SOLAR-01 unit. Wait some seconds in order to permits a stable measure
by probes
13. Wait for the READY LED to start flashing. This event indicated that the instrument has
detected some data with solar irradiation > minimum limit threshold (see § 5.3.3.3).
14. Wait at least 1 minute in order to recording more valid samples than disconnect
the irradiation and temperature probes from the SOLAR-01 unit, bring the SOLAR-01
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-01 connected” (should this message not
appear, disconnect and connect again the USB connector)
15. Press the F1 key (FINISH) on the main unit to stop the test
16. After the automatic data transfer phase, the instrument:
 Do not show any results if do not exist on the PV installation a “stable irradiance”
condition more than the minimum irradiance threshold (see § 5.3.3.3)
 Display the best performance values if during the recording, the Irradiance values
reached the “stable” condition and its values were higher than the minimum irradiance
threshold (see § 5.3.3.3)
17. Press SAVE to save the results obtained. Pressing the key will display the virtual
keyboard for typing possible comments. A further pressing of the SAVE key will store
the measure and the typed comments and will go back to the initial screen, ready for a
new measurement
18. Press ESC to delete the detected data and go back to the initial screen, ready for a
new measurement