HT instruments SOLAR I-V - Manual (Page 25)

I-V400 - SOLAR I-V
EN - 23
6.1.1. Testing of PV systems with single-MPPT inverter - single-phase AC output
The SOLAR I-V meter (master) can perform check tests of efficiencies on single phase PV
installations by using the irradiance and temperature probes which are connected to the
remote unit SOLAR-02. This remote unit communicates with the master unit (for the
synchronization and download data operations) through a wireless radio-frequency (RF)
which is active with a maximum distance of about 1m between units.
CAUTION
 The maximum voltage between C1, and C2 inputs is 1000V DC and
between P1 and P2 inputs is 265V AC rms. Do not measure voltages
exceeding the limits prescribed by this manual. Should you exceed the
voltage limits you could damage the instrument and/or its components or
endanger your safety
 In order to guarantee the operator’s safety, while making the connections,
disable the system being measured by means of the switches/breakers
upstream and downstream of the DC/AC converter (inverter).
Fig. 4: Connection of meter for check on single phase PV installation
1. Check and, if necessary, set the sensitivity of the reference cell on SOLAR-02 consistently
with the type of PV modules which will be measured (please refer to the User Manual of
SOLAR-02)
2. We recommend making a preliminary evaluation of the value of irradiation on the surface of
the PV modules being tested by means of unit SOLAR-02 (operating independently) and the
reference cell
3. Switch on SOLAR I-V. Check and if necessary modify the basic settings of meter
relative to the minimum irradiance threshold, the FS of DC and AC transducer clamps,
the IP and the parameters of the PV installation on test (see § 5.1.1, §5.1.5 and §5.2)
4. In order to guarantee the operator’s safety, disable the system being measured by means of
the switches/breakers upstream and downstream of the DC/AC converter (inverter)