Rotary Paddle Silo Level Sensor Rotary Paddle Silo Level Sensor The SEVEN Rotary Paddle Silo Level Sensor is used for level detection in silos, tanks, and bunkers containing solid materials like powder or granules. The shaft length and paddle type can be selected according to the physical properties of the solid material to be measured. The motor shaft, along with the paddle at its end, rotates freely when there is no solid material at the paddle level inside the silo, tank, or bunker. As the solid material level increases during filling, it compresses the rotating paddle, causing the step motor to lose power, and the warning light turns on. This indicates that the solid material level has reached the designated point. When the solid material level decreases and no longer presses the paddle, it begins to rotate again, and the warning light starts flashing again. The Warning Light can be viewed through the transparent cover and operates in 3 different modes; • Flashing Mode: The sensor is working. The paddle is turning. • Always On: The sensor is working. The paddle is not turning because the silo is full. • Always Off: The sensor is not working. There is no power connection. • Torque Selection According to Material • Horizontal and Vertical Mounting • Robust Enclosure • Long Lifetime with Step Motor • Status Monitoring with Warning Light • Thermal Protection Option / Longer Shaft Option • SEVEN Customer Support Pinarcay OSB Mah. Organize San. Tesisleri 11. cad. No:35 Merkez / Qorum • Phone: +90 364 230 1233 • Website: www.sevensensor.com • Email: [email protected]

Working Principle When viewed from the front, the connector on the device shows the connection points as diagrammed. The motor rotates the paddle when no solid material is present at the paddle level, and the COM–NC connection is active. Although the motor remains active, the paddle stops rotating, and the COM–NO connection is activated. The paddle resumes movement once the level of solid compressing it decreases, and the COM–NC connection becomes active. The torque setting is used to adjust the power of the motor inside the sensor. The torque setting can be changed according to the physical...

Technical Drawings 3S-SLS-RP 103 PG9 Plug Cable Connector *SEVEN has the right to make modifications on this documentation without notice. 3 Pinarcay OSB Mah. Organize San. Tesisleri 11. cad. No:35 Merkez / Çorum • Phone: +90 364 230 1233 • Website: www.sevensensor.com • Email: [email protected]