• The maximum voltage between the P1, C1, P2 and C2 inputs is 1500VDC.
Do not measure voltages exceeding the limits given in this manual.
• Do not perform tests on PV modules or strings connected to the DC/AC
converter.
• The maximum current measured by the instrument is 40A
• Standard IEC/EN62446-1 requires that measurements are performed string
by string. Even if the instrument is designed to handle inrush current for
single strings or strings connected in parallel, we recommend testing one
string at a time in accordance with the standard.
1. Switch on the instrument by pressing the ON/OFF key
2. Switch on the SOLAR03 remote unit, pair it with and connect it to the instrument as
described in § 6.2. Note the presence of the " " icon in the top right corner of the
display
3. Connect the instrument and the SOLAR03 remote unit to the module/string being
tested as shown in Fig. 33. In detail:
➢ Connect the Negative pole output of the module/string to terminals P2, C2 and the
Positive pole output of the module/string to terminals P1, C1
➢ In case of Monofacial modules → position the reference cell HT305 onto the front
surface of module (F) and at input “INP1” and possibly temperature probe PT305
at input “INP4” of the remote unit.
➢ In case of Bifacial modules→, position the three HT305 reference cells on the
front surface of module (F), on the top back section(BT=BackTop) and on the
bottom back section (BB=BackBottom) of the module. Connect the front reference
cell (F) to input “INP1”, BT reference cell to input “INP2”, BB reference cell to input
“INP3” and possibly the temperature probe PT305 to input “INP4” of the remote
unit.
In accordance with the IEC/EN60904-1-2 standard, the instrument calculates the
equivalent front-side Irradiance (Irreq) value, which corresponds to the Irradiance
on the front surface only, which produces the same effects as the Irradiance
measured on both sides, taking into account the bifaciality factor () of the module
according to the following relationship:
Fig. 33: Connection with remote unit SOLAR03 on Monofacial and Bifacial modules