SR2-10S/10F/20F/30F/40F/80/10F-L/10XLT/20F-T/H resistance rotary level switch

Product Introduction

Resistance rotary switch is a level controller used for solid materials (including powder, granular, block, gel, etc.). It has the characteristics of good sealing, strong overload capacity (with overload protection), lightweight and easy to install, and large output contact capacity. For materials with different densities, it can be achieved by adjusting the tension of the spring, and the part in contact with the material is entirely made of stainless steel material. Resistive rotary switches have been widely used in industries such as chemical, plastic, cement, pharmaceutical, feed, and food.

working principle

By using a permanent magnet motor to drive the blades to rotate, when the detected material rises to the blade position, the rotation of the blades is obstructed. This resistance is transmitted to the detection device inside the junction box through the transmission shaft, and the detection device outputs a switch signal to the outside, cutting off the motor power to stop the blades from rotating. When the material drops, the blade resistance disappears, and the detection device relies on the tension of the spring to return to its original state, and the blade returns to its rotating state. For materials with large differences in specific gravity, the spring tension can be adjusted. When the specific gravity is high, the spring tension can be adjusted to the maximum, otherwise it can be adjusted to the weakest.

Technical specifications

1. Power supply: 220VAC/110VAC/24VDC/24VAC

2. Power consumption: 4W

3. Contact capacity: 5A/250VAC SPDT (single pole double throw)

4. Blade speed: 1 RPM (revolutions per minute)

5. Torque: 10kgXcm

6. Material density: ≥ 0.5g/cm3

7. Working temperature: -10~80 ℃ (up to 400 ℃)

8. Protection level: IP65