Fast-response pyrheliometer CHP1

ISO 9060 Spectrally Flat Class A Excellent temperature dependence Excellent linearity Excellent long-term stability 5 year warranty CHP1 Pyrheliometer The CHP1 pyrheliometer is the most commonly used radiometer for the measurement of direct normal irradiance (DNI) and offers high accuracy and reliability. The instrument has a quartz window to cover the total solar spectrum of solar radiation between 200 to 4000 nm. CHP1 is has a high quality connector for easy installation and maintenance, the screw-in drying cartridge is easy to remove and replacement desiccant is supplied in convenient refill packs. Kipp & Zonen SOLYS sun trackers are supplied pre-fitted with the mountings for a CHP1. As standard CHP1 comes fitted with both 10 kΩ thermistor and Pt-100 and temperature sensors; so that the small temperature dependency of sensitivity can be corrected in post-processing using the supplied test data. The CHP1 is the perfect choice for high accuracy direct solar irradiance measurements. Specifications Spectral range (50% points) - 200 to 4000 nm Sensitivity - 7 to 14 µV/W/m² Response time - < 5 s Zero offset due to temperature change (5K/h) - < 1 W/m² Temperature dependence of sensitivity (-20 ºC to +50 ºC) - < 0.5 % Field of view - 5 ±0.2 ° Operational temperature range - -40 to +80 °C Non-linearity - < 0.2 % Maximum solar irradiance - 4000 W/m² Classification to ISO 9060:2018 - Spectrally Flat Class A