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Snow Sensor (3S-SS-MB)

Snow Sensor (3S-SS-MB)

Snow Sensor (3S-SS-MB)

Product catalog summary
Overview: The SEVEN Snow Sensor is designed to measure energy production loss due to snowfall on photovoltaic (PV) modules. It is suitable for both ground and rooftop PV projects and provides notifications of production losses.
Functionality: The sensor calculates the snow rate by comparing irradiance data from two reference cells—one exposed to snow and the other kept snow-free by an internal heater. This data helps in determining energy loss and adjusting solar tracker systems accordingly.
Key Features:
  • Increased efficiency in tracker systems
  • Fast and simple installation
  • Free software updates
  • SunSpec compliant
  • Remote setup service and customer support
  • 2-year warranty
Technical Specifications:
  • Operating humidity range: 0 to 100% RH
  • Operating temperature range: -40°C to +85°C
  • Power supply: 22 to 30 V DC
  • Dimensions: 200 mm x 412 mm x 44 mm
  • Snow ratio resolution: 0.1%
  • Uncertainty: ≤ 2%
  • Irradiance range: 0…1600 W/m²
  • Data output: RS485 up to 38400 Baud, Modbus RTU
  • Power consumption: 0.82 A max @ 24VDC (0.02 A max when heating off)
  • IP Rating: IP 65
  • Galvanic isolation: 1000 V between power supply and RS485 bus
Technical Drawing: The document includes a technical drawing with dimensions in millimeters.
Calibration: Each sensor is calibrated under Class AAA Sun Simulator as per IEC 60904-2 using a reference cell calibrated by ISFH-Germany.
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Catalog excerpts

Snow Sensor (3S-SS-MB)-1

Snow Sensor Snow Sensor SEVEN Snow Sensor is designed to measure the loss in energy production caused by snowfall on photovoltaic modules. Suitable for both ground and rooftop projects, the snow sensor notifies the user of production losses due to snowfall. If the snow rate read from the sensor is 10%, it means that there is 10% energy loss in the facility. Snow Rate = Energy Loss The SEVEN Snow Sensor calculates the snow rate of the PV plant by comparing the irradiance data received from two reference cells, with and without snow. The snowy reference cell is exposed to snowfall in the same way as the panels, while the snow-free reference cell is heated by the heater inside the box, thus preventing snow accumulation on the cell. Monitoring systems give the user energy loss by using the snow rate received from the snow sensor. Normalized Irradiance Snowy ceil Snow Ratio =[ l -mr„llled s„,„„c 1 x100 SEVEN Snow Sensor is specially designed for Photovoltaic projects with Solar Tracker systems. In Solar Tracker systems, snow creates both a challenging and unwanted load for the system and a cover that reduces energy production.Snow Sensor communicates with the Tracker control center and ensures that the stand takes the appropriate position depending on the snow rate on the module. With SEVEN Snow Sensor, the snow rate is calculated and when it reaches the level determined by the user, it is decided to bring the modules to the appropriate position. Thus, savings can be achieved by preventing unnecessary operation of the solar tracking system when there is no or little snow. Increased Efficiency in Tracker Systems • Fast & Simple to Install • Free Software Update • SunSpec Compliant • The World’s First and Only PV-Based Snow Sensor SEVEN Remote Setup Service SEVEN Customer Support 2 Years Warranty Pinarcay OSB Mahallesi Organize Sanayi Tesisleri Teknokent Idare Binasi No: 7, D:1, 19100 Merkez / Corum / Turkiye • Phone: +90 364 230 1233 • Website: www.sevensensor.com • Email: [email protected]

 Open the catalog to page 1
Snow Sensor (3S-SS-MB)-2

Pinarcay OSB Mahallesi Organize Sanayi Tesisleri Teknokent Idare Binasi No: 7, D:1, 19100 Merkez / Corum / Turkiye • Phone: +90 364 230 1233 • Website: www.sevensensor.com • Email: [email protected]

 Open the catalog to page 2
*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.