The Kaco Irradiance Sensor is used for
professional monitoring of your photovoltaic installation. Based on the
measured solar radiation the expected
energy yield can be determined and
compared to the actual yield. The shortcircuit
current of a silicon (Si) solar cell is
proportional to the solar radiation. The Si
sensors use a monocrystal solar cell,
which is virtually operated under shortcircuit
conditions via a low-impedance
As the positive temperature coefficient of
the short-circuit current results in a low
results in a low measuring error, Si sensors
(abbreviated: "TC") are provided with
active temperature compensation so as to
to reduce this error by the factor of 20. A
special temperature sensor is laminated
onto the rear side of the solar cell for this
purpose. All sensors have been calibrated
under sunlight conditions to a pyranometer.
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