What is paddle level switch?

Paddle type level switches are general powder level switches, and are used not detect powders. These level switches have been used in various locations where powder and grains must be detected. This page introduces operating principles of paddle type level switches and shows some application examples.

What is the use of paddle switch?

Paddle Type Level Switch is used for level detection for powder or bunk material in silo, hoppar, etc. The rotating paddle is continuously rotates by a motor. When this paddle contacts with the material, the force more than the rotating torque will be applied to the paddle and the rotation will stop.

Paddle Switch Working Principle:

• Paddle Type Level Switch is used for level detection for powder or bunk material in silo, hoppar, etc.
• The rotating paddle is continuously rotates by a motor. When this paddle contacts with the material, the force more than the rotating torque will be applied to the paddle and the rotation will stop.
• The Level Switch detects rotation ⇔ stop and outputs the contact.
• The principle is based on the moment of resistance change of a rotating paddle in air or a medium.
• The electrically driven, slowly rotating paddle (frequency = 1Hz) is on the level of the selected limit.
• The rising product breaks the rotation; the hinge-mounted drive system changes its position and triggers a micro switch. As the level moves down, the drive returns to its original position by spring force and the micro switch restarts the motor.

Applications:

• Point level detection in bulk solids
• The universally usable paddle point level switch is employed as a full, empty and requirement alarm in silos with bulk solids.
• Building industry materials, cement, sand, lime, etc
• Food stuff industry, milk powder, flour, salt, foodgrains, etc
• Plastic industry, powder, granular etc
• Timber industry, chemical and mining.
• Energetics : active soot, coal powder, fly ash.Continuous

Advantages:

• Automatic rotation monitoring
• Recognition of failures without dismantling the instrument
• Easy installation
• Robust plastic housing with transparent cover
• Cover securing device
• Density setting without any tools