The 240-SP Silicon-Cell Pyranometers are calibrated to measure total shortwave radiation. Amplified versions are available in 2.5 volt, 5 volt, and 4-20 mA outputs.
The 240-SP series pyranometers compare favorably with second class standard pyranometers, but at a fraction of the cost. They have been used successfully for over 15 years in many different field measurement situations, including agricultural, meteorological, and solar energy applications.
Featuring a fast response time of less than one second, they are cosine-corrected to get accurate readings even if the sun is at a low zenith level, have a self-cleaning head, and are designed to be rugged for continuous outdoor use in all climates.
The 240-SP-230 All Season Heated Pyranometer has a 0.2 watt heater to keep water (liquid and frozen) off the sensor and minimize errors caused by dew, frost, rain, or snow blocking the optical path.
The new 240-SP-420 Smart Pyranometer can be connected directly to a computer for taking spot measurements or graphing and datalogging real-time shortwave radiation using the included software. The sensor can also act as a stand-alone shortwave radiation datalogger by simply connecting it to any standard 5 V DC USB power plug. Internal memory within the sensor head is capable of storing 10,000 user-specified periodic measurements that can be downloaded as a CSV file to a computer for analysis. Consult NovaLynx for more information.
The pyranometers can be secured to the 240-AL-100 Leveling Plate by means of a threaded insert in the bottom of the sensor. Three bolts assist in leveling the plate.