EKO’s new generation sensor, the MS-80 broke the rules of traditional pyranometer architecture. The innovative design
was inspired by the combination of latest technologies and state-of-the-art thermopile sensors, enabling a breakthrough
in unprecedented low zero-offset behaviour, fast sensor response, high accuracy and over time measurement stability.
The MS-80 remains a class-leader for ISO 9060:2018 Class A solar sensors today. It offers several advantages over the
competition to perform the most accurate irradiance measurements against low cost of ownership. The compact sensor
with single dome is immune to thermal offsets and integrates all value-added functions to reduce maintenance. The MS-
80 pyranometer also no longer has a drying cartridge, with silica gel instead used inside to keep the sensor dry.
For the MS-80 series a range of accessories is available (MV-01 ventilator and heater, cable extensions and albedo
mounting plates).
MS-80SH unique properties:
Dew and frost mitigation The dome heating function reduces dew and frost build-up on the dome. The dome heating
function can be switched ON/OFF as needed, and when ON, the temperature of the glass dome is 1°C to 3°C higher
than the ambient temperature.
IEC61724-1:2021 Photovoltaic system performance - Part 1: Monitoring requires for Class A systems, the effects of
dew and frost accumulation on irradiance sensors shall be mitigated for locations where dew or frost is expected during
more than 2 % of annual GHI-hours. To meet this requirement, MS-80SH has the dome heating function that mitigates
dew or frost build-up on the glass dome.
Long term stability The long-term stability of the MS-80SH has been optimised thanks to the sensor's unique design, low
sensitivity degradation properties, and enhanced airtightness..
Fast detector response The MS-80 series is based on the latest thermopile technology, with a response time of <0.5sec
@95% or <1sec @99% for all models (ISO 9060:2018 Class A, Sub-category ‘Fast response’and ‘Spectrally flat’). Such
a response time is suitable for measuring rapid changes in solar irradiance.
Excellent temperature coefficient The MS-80SH has an extremely low temperature error in a wide temperature range
compared to most conventional pyranometers, and it provides linear output against solar irradiance.
Lowest zero off-set The MS-80SH has the lowest off-set errors compared to conventional pyranometers with a double-
dome, additional ventilation and heating system.. The combination of the isolated thermopile detector architecture and
optics keep the sensor in thermal balance within variable atmospheric conditions.
Warranty and re-calibration Unique in the market, the MS-80SH has a 5 year warranty and 5 year recommended re-
calibration period due to the great long-term stability of the detector.
ISO 9060:2018 The international industry standard for pyranometer classification, was revised to the 2nd edition in 2018.
Along with this revision, pyranometers are classified in order of the highest grade ‘‘Class A’’, ‘‘Class B’’, ‘‘Class C’’ and
for pyranometers that meet the response time and spectral selectivity criteria, ‘‘fast response’’ and ‘‘spectrally flat’’ are
classified as sub-categories. The MS-80SH is a Class A pyranometer that meets the sub category requirements for ‘‘fast
response’ and ‘spectrally flat’’.
