EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80 - Instruction Manual Ver. 3
4-1. About the Pyranometer Series
EKO offers four different MS-80 pyranometer models each with different features. With this wide range of
sensors, EKO pyranometers can meet all possible application requirements, ranging from PV module
efficiency measurements to climatology research and material durability testing.
The MS-80 sensor gives excellent durability. It is airtight and can be deployed with little maintenance since
the desiccant is incorporated inside.
Solar sensors are applied outdoors, hence the detector black surface, optical components and sensor
mechanics are constantly exposed to solar radiation, temperature and pressure differences. UV radiation
known as harmful radiation to materials can change the chemical properties of substances irreversibly. In
case of the MS-80 the detector it is totally isolated below the sensor optics surface, which is sealed, and can’t
be affected by a high dose of UV, moisture or pressure differences.
During production and inspection, the directional response and temperature dependency are measured and
validated through a measurement report that comes with each sensor. Besides, EKO provides a unique
calibration service for pyranometers compliant to the international standards defined by ISO/IEC17025 / 9847
(indoor method). When an ISO/ IEC17025 calibrated sensor is purchased, EKO offers sensor at nearly
constant calibration uncertainty. The Accredited lab is regularly re-examined to ensure that they maintain
their standards of technical expertise.
In case of MS-80, MS-80A and MS-80M, With combination of optional MV-01 (ventilator + heater unit),
reduces the dew condensation and accumulation of dusts and snow on glass dome by continuously blowing
the air.
In the following paragraphs, the four instrument types are described individually.
1. MS-80
The analogue MS-80 pyranometer can be used as a reference sensor to measure the global broad-band
solar radiation with a high accuracy. With excellent temperature response and non-linearity characteristics, it
provides optimal performance throughout the year and day.
Category of ISO9060: 2018
“Fast response and spectrally flat pyranometer of class A”
Key features:
Fast Response time (<0.5s@95%, <1s@99%)
Excellent temperature response over a wide temperature range (-20 to +50℃)
Low offset characteristics
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