Pyrgeometer CGR4

CGR4 pyrgeometer is an instrument for the highest quality scientific measurements. The specially designed meniscus dome provides a 180° field of view with negligible directional response error. A hard-carbon coating on the outside of the dome smoothes the spectral response and provides extra protection to the silicon surface. The excellent thermal stability of the dome construction and coupling to the instrument body eliminates the need for dome temperature measurements or dome shading. CGR4 can be fitted with the CVF4 ventilation unit to further improve its performance. A waterproof socket is fitted for the signature yellow signal cable, which is available in a range of lengths pre-wired to the waterproof plug. The integral bubble level is raised to the top of the housing and can be viewed without removing the redesigned snap-on sun shield, which also covers the connector. The connector with gold-plated contacts allows for easy exchange and re-calibration. The screw-in drying cartridge is easy to remove and the replacement desiccant is supplied in convenient refill packets. Technical Attributes Power Consumption - none Analogue Ouput Signal - -5 - 5 mV Power input - none Analogue Outputs - -5 - 5 mV Dimensions (free text) - Ø 5.9 in (150 mm), H 3 in (76.6 mm) Operating humidity - 0 - 100 % Ambient Temperature - -40 - +176 °F (-40 - +80 °C) Weight EU - 1.3 lbs (0.6 kg) Digital outputs - N.A. Operating temp range 1 - -40 - +176 °F (-40 - +80 °C) Analog Output - Yes Zero offset A - 4 W/m² Non-linearity - ˂ 1 % Temperature Dependency - ˂ 1% (-4 °F - +122 °F) Casing IP Rating - IP67