Class C pyranometer CM4

for solar energy test applicationsISO 9060spectrally flat

The CM4 High Temperature Pyranometer is a radiometer specially designed for measuring solar or artificial light irradiance under the most extreme temperature conditions. With an operating temperature range of -40 ºC to +150 ºC and measurement up to 4000 W/m² it is a unique product. All the radiometer components are specially selected for their ability to withstand these extremely high temperatures and irradiance. The CM4 is supplied with a 10 m high temperature signal cable fitted to the instrument. The CM4 High Temperature Pyranometer has internal first-order temperature compensation, but it is also supplied with a built in Pt-100 temperature sensor to provide additional information on the measurement conditions. Monitoring the temperature during operations allows easy data correction afterwards for improved measurement accuracy. CM4 is supplied with a calibration table that gives the instrument sensitivity for a number of measurement temperature ranges and the maximum error in the measured irradiance values within each range. The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets. Technical Attributes Operating humidity - 0 - 100 % Zero offset A - ˂ 4 W/m² Operating temp range 1 - -40 - 302 °F (-40 - 150 °C) Zero offset B - ˂ 15 W/m² Digital outputs - N.A. Non-linearity - ˂ 1 % (0 - 100 W/m²) Cable Length - 33 ft (10 m) Non-stability - ˂ 0.5 % (change/year) Casing IP Rating - IP67 Weight EU - 0.6 lb (250 g) Spectral accuracy - 300 - 2800 nm Analogue Outputs - 0 - 40 mV Temperature Correction - ˂ 3 % (-20 - +80 °C) Irradiance saturation - 4000 W/m² (Max.) Material enclosures - Aluminum, anodised Response Time - ˂ 8 s (95 %)