I - Introduction; General Information; Measured Units; Use - Kimo SL200 User Manual

I – Introduction
In addition to environmental applications, and face to development of renewable energy, SL 200 instrument allows to control on test or on site,
equipment with thermal or photovoltaic sensors. Thanks to its big capacity of measurement and storage, SL 200 becomes an instrument of
control and investigation particularly suited.
SL 200 instrument is a portable instrument which can measure and display :
Instantaneous:
Irradiance or irradiation for spot check measures in W/m².
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On a timed duration of measurement:
Max./min. values
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Average value of irradiance
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Accumulated energy or radiant exposure in Wh/m²
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Data are saved when the instrument is stopped or in case of battery failure.
Its sensor is composed of a strained silicon cell, not very sensitive to the thermal changes. It absorbs the solar radiation through a diffusor and a
correction filter. The output voltage of the sensor is related to the received radiation.
SL 200 instrument is mainly an efficient and easy-to-use instrument : with small size, it has a large display with a resolution of 64*128 pixels
involving a very high electronic technology.
II – General information

Measured units

SL 200 instrument can process the energy intensity emitted by the solar radiation in a precise place of the earth .
Expression of the solar energy and associated units :
Irradiance is the solar radiant flow received by unit area, expressed in W/m².
The radiant exposure or global irradiation is the quantity of solar energy by unit area: it's the product of irradiance by the duration of irradiation,
expressed in Wh/m²

Use

Solar radiation :
Among all solar radiations, (opposite draw),
SL 200 was designed to measure the sum of direct solar radiation and diffuse solar radiation, which
constitutes global solar radiation.
For any application, before, during and after the installation of solar thermal photovoltaic sensors, it is
required to control means of measurement to obtain valid and coherent results. Means of use of the
instrument has at least so much importance on the result than the quality of the instrument.
It is definitely necessary to take into account the influence of environment, in particular :
1. Position or direct correctly solar cell of SL 200 instrument, according to location of
solar sensors or supports (roof, terrace...)
2. Avoid dark areas (present or to come)
3. Go away as much as possible from reflecting zones
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