HT instruments SOLAR300N - Manual (Page 164)

SOLAR300 - SOLAR300N
EN - 162
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 open the clamp,
rotate it by 180° and connect it again to the conductor
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)
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 GO/STOP key to start the recording on a PV system (see § 5.6). The icon
is shown on the display of 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 GO/STOP key the test has been
started on a photovoltaic system. Disconnect the SOLAR-01 from 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).
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)
14. Press the GO/STOP key on the instrument to stop the recording
15. After the automatic data transfer phase, the main unit 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