- Secondary standard Pyranometer
- Fast Response time (95% < 5s)
- Temperature compensated in a wide temperature range
- High quality optical glass domes for proper cosine reponse
- MS-802F is a MS-802 with 110VAC/12 VDC ventilation system to prevent any possible influence of frost, snow and dust.
The MS-802 Secondary Standard Pyranometer is the ultimate reference sensor to measure global solar irradiance with the highest precision. Its robust brass mechanical construction makes it a durable sensor suitable to be used in harsh environments. The MS-802 is used as standard for PV research and climatology studies around the world.
In combination with a Sun tracker (STR-series) or manual shading ring (RSR-01), respectively the Global Normal Incidence (GNI) and Diffuse (DHI) irradiance can be measured. The MS-802F is a MS-802 with integrated ventilator unit to improve the performance under various environmental conditions (prevents or minimizes the effect of dew, rain, snow, ice and dust).
|Specifications (typical)||MS-802 / MS-802F|
|ISO 9060 classification||Secondary Standard|
|Response time 95% (sec)||< 5|
|Zero offset - Thermal radiation (200W/m²)||< 6 W/m²|
|Zero offset - Temperature change (5K/hr)||< 2 W/m²|
|Non-stability (change/year)||< 0.5 %|
|Non-linearity (at 1000W/m²)||< 0.2 %|
|Directional response (at 1000W/m²)||< 10 W/m²|
|Spectral selectivity (0.35-1.5µm)||< 1 %|
|Temp. response (for 50°C band)||< 1 %|
|Tilt response (at 1000W/m²)||< 0.2 %|
|Sensitivity (µV/W・m-2)||Approx. 7|
|Impedance (Ω)||Approx. 500|
|Operating temperature range (°C)||- 40 to +80|
|Irradiance range (W/m2)||0 - 4000 W/m2|
|Wavelength range||285 to 3000 nm|