Powder Level Switch

The Parker Padle Level switch operating principle is simple. A detection paddle inside the tank is turned by synchronous motor, the paddle is arrested to rotate by a load of the object to be measured. An actuator fixed on the motor activates a limit switch to stop the motor, providing a detection signal.

A unit is usually located through a bin wall at the top, middle or low level of a bin. During normal operation (no material present) a synchronous motor rotates the paddle at 1 RPM. When this paddle rotation is impeded by material, surrounding the paddle, motor will stall and cause the Micro-switch to change state. (indicating an alarm or control)

Parker Paddle Level switch

The Parker Paddle Level Switch is an electromechanical level switch designed for level monitoring of bulk materials. The rotating measuring vane is driven by a brushless synchronous motor at one revolution per minute. As product builds up, the paddle rotation is impeded and the resulting motor torque activates the output switch and stops the motor. A spring mechanism reactivates the motor and returns the switch to normal state when the material no longer impedes the paddle rotation. A torque adjusting mechanism eliminates the need for different sized paddles. The Parker Level switch is designed with the industry standard 1-1/4" male NPT connection and unit can be side or top mounted.

The paddle of the sensor rotates 1 time per minute. As the content in the tank fills up and influences the rotation of the paddle to stop, the relay in the sensor activates.

Feature

Easy to install, and used in low or high temperature.
Used for fodder, grain, powder, etc.
Robust structure and able to adjust the length of axis.
Airtight sealing device, outdoor application is available.
Unique sealing ring design, it can perform good dust protection to avoid the dust permeate into housing body along with the shaft.
The performance of torsion is stable and reliable.
Top or side mountable
Screw cover: For easy access with no worries about losing bolts or screws
Motor shuts off when paddle stalls
Flexible coupling available for protection of the paddle and drive from side loads, surges or impacts.
Recommended for top mount applications with shaft extension and applications with large or heavy materials.