HT SOLAR-02 Manual De Instrucciones página 23

SOLAR-02
5
USING THE REMOTE
UNIT SOLAR-02
5.1
GENERAL
The remote unit SOLAR-02 can be used in the following modes:
1. Independent operation without connection to any master instrument
for measuring in real time the values of irradiation, cell temperature and
environmental temperature on PV installations. To this purpose, the unit
accepts, as inputs:
For irradiation measurement (expressed in W/m2 - PYRA/CELL input):
• Solarimeter probe with thermobattery type Irr-P (see Table 1)
• Double reference silicon cell type Irr-S2 (see Table 1)
For module and environmental temperature measurement (expressed in °C – TEMP
input)
• Temperature probe type Tmp (see Table 1)
2. Operation for testing/recording synchronized with a master instrument for
measuring and saving irradiation and temperature values of cells:
• Connection via USB cable C2007 → Master instrument type M-USB (see
Table 1)
• Connection with radio frequency (RF) → Master instrument type M-RF (see
Table 1)
According with settings receveid by MASTER instrument, SOLAR-02 display a
Tc value:
• Measured by the temperature probe "Tmp" (see Table 1)
• Calcuted using NOCT (set in MASTER instrument), Irradiance and
Environment Temperature measured by SOLAR-02 according to relationship
where:
Tamb= Environment Temperature
Gp= Irradiance measured
NOCT= Normal Operating Cell Temperature
CAUTION
The presence of "K" symbol on the left of "Tc" temperature value, indicates
that the Cell temperature (Tc) value displayed is not a measured
value buti s a calculated value according with previous relationship.
When the SOLAR-02 is switched on (before connection to MASTER
instrument) the Tc value is the measured value.
5.2
PROGRAMMING THE REMOTE UNIT SOLAR-02
In order to obtain correct irradiation measurement results, it is necessary to carry
out a correct preliminary setting of the sensitivity values of the probes connected
to the PYRA/CELL input of the unit. The set values will be read and considered by
the master instruments upon testing/recording and will be kept by the SOLAR-02
even when the unit is turned off, until they are modified.
The unit SOLAR-02 allows setting the parameters of max 3 irradiation sensors.
In detail:
• The use of a sensor type Irr-S2 requires setting the sensitivity (K) expressed in
mV/kW*m or in µV/W*m
-2
various types of silicon (monocrystalline, polycristalline, etc.)
• The use of a sensor type Irr-P → requires setting the sensitivity (K) expressed
in mV/kW*m or in µV/W*m
-2
ignored.V/W*m-2. The parameter Alpha expressed in %/°C is ignored.
Rel. 4.00 - 22/11/22
Tcel =Tenv + (NOCT - 20) x
and the parameter Alpha expressed in %/°C for the
-2
. The parameter Alpha expressed in %/°C is
-2
EN
G
p
800
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