4-20 mA solar radiation sensor 3S-IS-T-I
with temperature sensor

4-20 mA solar radiation sensor - 3S-IS-T-I - SEVEN Sensor Solutions - with temperature sensor
4-20 mA solar radiation sensor - 3S-IS-T-I - SEVEN Sensor Solutions - with temperature sensor
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Characteristics

Type
with temperature sensor
Output signal
4-20 mA

Description

This Irradiance Sensor is used to measure the radiation flux density of Solar PV Plants having an 4-20mA Input Datalogger. Besides Irradiance, it includes also an Internal cell Temperature Sensor. It is supplied along with Mounting Bracket and Cable. WORKING PRINCIPLES A silicon solar cell can be used as an irradiance sensor, because the short-circuit current is proportional to irradiance. Our sensors are built out of a monocrystalline solar cell connected to a shunt. Due to the low resistance of the shunt the cell operates next to short circuit. The temperature coefficient of the short-circuit current creates a small error. The compensation is realized by using a temperature sensor laminated to the rear side of the solar cell. The measuring signals of short- circuit current of the cell and the resistance value of the temperature sensor are measured by a micro controller. The calculated values of irradiance and temperature given onto a 4-20mA protocol. The electronic circuit is optimized for low power consumption. CONSTRUCTION FEATURES Monocrystalline Cell: The cell is laminated with 2 EVA sheets, one Tedlar sheet and 3mm tempered glass under 180 °C homogeneous temperature and under vacuum effect. The size of the monocrystalline cell is 52×52 mm² or 31x31mm². Sensor Box: It is an UV protected aluminum box. The sensor box has two opening access and the mounting holes on its sides are for easy site installation. There are three options for IP Class; IP54, IP65 and IP68. For ventilation purpose, there are 1mm holes at bottom side of the box, or a ventilation plug on its side.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.