HT instruments SOLAR I-V - Manual (Page 45)

I-V400 - SOLAR I-V
EN - 43
17. Mount the M304 (inclinometer) supplied accessory, place and hold it on the plane of module.
Verify that the sun shadow falls on the disc within the “limit internal circle” on the
disc itself (see Fig. 10). If this is not the case, the incidence angle between sun rays
and the module surface is too high and not complying with the test conditions
declared by the module manufacturer. As a consequence the measurements
performed by the meter are not ok and all measurements steps shall be repeated at
another daytime
18. Fix the support of the cell to the module by using the supplied set of screws and mount the
reference cell on it possibly with output terminals downwards with respect to the
module. Rotate the cell upwards to lean it on the small wing of the support so as the cell is
perfectly parallel to the plane of module, then fix it with the relevant screws supplied
19. Connect the output of reference cell (depending on the type of module under test) at
the PYRA/CELL input of remote unit SOLAR-02 by using the supplied cable
20. Connect, if used, the auxiliary temperature probe to the TEMP input of remote unit
SOLAR-02 and on the rear of module, fixing it with adhesive tape
21. Connect the meter to the module/string under test as shown in Fig.11. In particular,
connect the negative output pole of module/string to P1, C1 input terminals and the
positive output pole of module/string to P2, C2 input terminals
Fig. 10: Positioning the M304 inclinometer
Fig.11: Connection of units to the PV module/string