Temperature dependency (typical figures) Attained the world's fastest response time. Perfectly suits for the evaluation of* ’ CPV(Concentrated Photovoltaic) and CSP(Concentrated SdlbfPower). • Fast Response time • Accurate temperature compensation • Thermally balanced detector • Double body temperature sensor The ISO First Class pyrheliometer "MS-56" is a high quality DNI (Direct Normal Incidence) solar radiation sensor which is well suitable to be used as a reference instrument for precise and accurate direct solar irradiance measurements and routine operation on a solar tracker. EKO adopted most recent technological innovations such as the ultra fast new thermopile detector with 95% response time <1s and excellent thermal stability. Even though the MS-56 is a relatively light-weight construction zero-offset effects were eliminated and the stability of the sensor made excellent, also under various environmental and solar irradiance conditions. The MS-56 sensor includes a passive temperature compensation module to minimize the detector temperature dependency to less than ±0,5% over a wide temperature range (-20°C to 50°Q. The detector temperature can be accurately monitored with the built-in PT-100 RTD or YSI 44031 10kQ NTC. The possibility of dew-deposition or condensation on the outside of the entrance optics is significantly reduced with the built-in low-power heater at the inside of the sensor.

ISO first class Specifications EKO INSTRUMENTS co., ltd. 1-21-8 Hatagaya, Shibuya-ku, Tokyo 151-0072 Japan PHONE: +81 -3-3469-6711 FAX: +81 -3-3469-6719 http://www.eko.co.jp E-mail: [email protected]