3S-SR-3T-WS-MB
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3S-SR-3T-WS-MB Solar Radiation Sensor Box 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...

WIRING EXTERNAL SENSORS Wind Speed Sensor Ambiant Temperature Sensor Irradiation Sensor Datalogger 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

▼EVEN 'SENSOR SOLUTIONS 3S-SR-3T-WS-MB Wind Speed Sensor APPLICATION Small and economical anemometer with digital output used to measure wind speed at solar power plants as well as at universal applications. Compatible with SEVEN Sensor Box. Supplied with stainless steel mounting bracket and Cable. TECHNICAL DATA General Information Sensor type Output Signal Measuring Range Accuracy Resolution Frequency Contact Load Ambient Temperature Cable Protection Survival Speed Dimensions Weight UV resistant plastic material cup star anemometer Reed relays, 2.5 Hz / (m/s) pulse 0,9...40m/s ±0.5 m/s or...

▼EVEN 'SENSOR SOLUTIONS 3S-SR-3T-WS-MB Module Temperature Sensor APPLICATION Maxim DS18B20 is an economical digital module temperature sensor for universal application as well as for solar photovoltaics projects. Compatible with SEVEN Sensor Box. TECHNICAL DATA General Information Sensor Type DS18B20 digital temperature probe, for flat surfaces (back side of solar panel) Sensor Housing Plastic housing with aluminum plate, H x W x L: 12 mm x 50 mm x 50 mm Cable 5 m PUR Cable, UV and weather resistant Connection One-Wire-Bus technique SEVEN Sensor Solutions (3S) • sales@sevensensor.com •...

Ambient Temperature Sensor APPLICATION Maxim DS18B20 is an economical digital ambient temperature sensor for universal application as well as for solar photovoltaics projects. Compatible with SEVEN Sensor Box. For this, SEVEN provides a stainless-steel mounting bracket and UV resistant solar radiation shield. TECHNICAL DATA General Information Sensor Type DS18B20 digital temperature probe Sensor Housing Stainless steel tube, 6 mm diameter, 50 mm length Cable 3 m or 5 m PUR Cable, UV and weather resistant Connection One-Wire-Bus technique SEVEN Sensor Solutions (3S) • sales@sevensensor.com •...

Modbus RTU Specifications Supported Bus Protocol BaudRate:1200,2400,9600, 19200,38400 Parity: No, even, odd Stop Bit: 1,2 (only at no parity) Factory Default: 9600 Baud, 8N1, address: 1 Transmission mode: MODBUS RTU Supported function codes: - 0x04: Read Input Register The following Mod bus data can be read individually or in blocks: SEVEN Sensor Solutions (3S) • sales@sevensensor.com • www.sevensensor.com