EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 1
Pg. 15
1. Glass Dome, Quartz Diffuser
A glass dome creates a sealed environment for the detector and protects it against dirt and rain. The dome of the
EKO pyranometers is only transparent for radiation emitted by the sun. The combination of the glass dome and
the Quartz diffuser give a 180 degrees field of view and cosine response.
2. Detector
The thermopile detector, which is the heart of the pyranometer generates a voltage signal that is proportional to the
solar irradiance. The fast response detector has a low temperature dependency and excellent long term stability.
3. Sunscreen, Body and Spirit level
MS-80 and MS-80S have a sunscreen to prevent any excessive body temperature increase generated by direct
sun light.Weather resistant metals are used to reduce the effects and degradation caused by heat radiation, rain,
and windblown dusts. The integrated spirit level is used for setup and maintaining the sensor in a horizontally
levelled position.
4. Drying agent
Enclosed drying agents inside the sensor body keep the sensor inside dry, prevents condensation of humidity inside
of the glass dome.
5. Cable and Cable Connector
MS-80/ 80S are shipped with a 10 meter long output cable as standard length*.
Durable materials are used for the cable and connector, and pin terminals are attached at the end of the cable for
easy connection with a data logger terminal block.
* If longer cables, round terminals or fork terminals are required, please contact EKO Instruments or your
distributor. [Also see [7. Specification, 7-4. Accessories List] for optional items.]
The connector should be protected by the self-fusing tape when the pyranometers are used in the areas with
the risk of the salt damage.
MS-80U has a 3 meter long output cable already attached, and the leads of the cable are soldered.
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