3S-SR-T-MB
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3S-SR-T-MB Solar Radiation Sensor Measurement of Solar Irradiance 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 specific 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 RS485 port with customer specification protocol. The electronic circuit is optimized for low power consumption. MECHANICAL CONSTRUCTION The solar cell is embedded in Ethylene- Vinyl- Acetate (EVA) between glass and Tedlar. Plain integration into the top cover of the box Advanced weatherproof junction box made of UV resistant material with cable gland and screw-less terminal for the connection of the measuring cable, therefore, the sensor construction is comparable to that of a standard PV module. The electrical connection is realized by a 3m cable. SEVEN Sensor Solutions (3S) • sales@sevensensor.com • www.sevensensor.co

▼EVEN 'SENSOR SOLUTIONS ALL SENSORS ARE CALIBRATED IN SIMULATED SUNLIGHT AGAINST A REFERENCE CELL OF THE SAME TYPE. THE REFERENCE CELL IS PERIODICALLY CALIBRATED AGAINST A REFERENCE CELL CALIBRATED BY FRAUNHOFER ISE, FREIBURG. TECHNICAL DATA General Information Solar Cell Current Shunt Operating Temperature Electrical Connection Power Supply Interface Protocol Galvanic Isolation Case Dimensions, Weight Protection Monocrystalline Silicon (52 mm x 52 mm) High precision shunt resistor directly soldered to the terminals of the cell -30°C to +70°C 3 m PUR Cable, UV and weather resistant 12 to 30...

▼EVEN 'SENSOR SOLUTIONS WIRING EXTERNAL SENSORS Wind Speed Sensor Ambient Temperature Sensor Irradiation Sensor Module Temperature Sensor Wind speed sensor, reed contact, pulse Ambient temperature sensor, DS18B20 Module temperature sensor, DS18B20 Power supply, 220VAC, 50/60Hz, 12VDC, 300mA Solar Radiation Shield for Ambient Temperature Sensor PT100, PT1000, DS18B20 etc. SEVEN Sensor Solutions (3S) • sales@sevensensor.com • www.sevensensor.com