Description

Silicon cell pyranometer measure global solar radiation. This pyranometer is low cost, light weight and easy to install. Pyranometer except it, includes a mounting and leveling plate. The sensor is a silicon photovoltaic cell which absorbs radiation from 0.35 to 1.15 microns. The silicon cell convert this light energy directly into electrical energy, and the output voltage (approximately 70V/w/M) is essentially linear with light intensity. Full-scale response time is less than 1 millisecond due to the fact that the instruments is light sensitive, not heat sensitive like thermopile pyranometer. If the output is integrated over a daily period, the accuracy of the value is in within =3% accuracy of instantaneous values is = 5%. Temperature compensation is provided from 4C to 60C