A motor constantly turns the rotating paddle. When this paddle meets with the element, the energy more than the rotating twist will be used to the paddle, and the turn will stop.
The paddle switch detects rotation halts and outputs the contact.
Principle of Paddle Switch
The law is based on the impedance change of a rotating paddle in air or a means.
The electrically run, gently rotating paddle is on the chosen limit level.
The rising product breaks the turn, the hinge-mounted force system shifts its place and activates a microswitch.
As the level goes down, the drive turns to its original state by spring force, and the microswitch restarts the motor.
Uses
- Point level exposure in bulk solids
- The entirely proper paddle switch is a complete, precise, and essential alarm in silos with bulk masses.
Benefits
- Automatic turn monitoring (optional)
- Identification of failures without ruining the tool
- Easy fitting
- Robust plastic housing with clear cover
- Cover securing gear
- Mass setting without any devices
Fitting of paddle type flow switch kit
- The height of the paddle made an estimated angle forming a flow switch unit. The length is defined as per the paddle's most profound point while angling the pipe's width and the reed switch. Divide the paddle at a typical pipe size mark or according to your choice but not shorter than 1-inch left.
- The paddle should be equal to the pipe's cutting face, and the setup screw is 1-inch NPT.
- On the screw hexagon, the flow point should be equal to the spot and the pipe.
- Before fitting the unit to the tee pipeline, make sure to perform the tape seal to the bolt and then stiffen it up.
What are the warnings?
- The temperature and pressure limits should not pass, and additionally, take the temperature and load into your concerns.
- Changes in working temperature change the setpoints. If the liquid temperature would vary with the specific gravity changes amid working, contact us for help.
- The flow switch is made for bearing oscillation and shock. Although, both vibration and shock must be as reduced as likely.
- Extra liquid infection might stop paddle usage, and wipe-down would be needed hardly.
- Mounting and electrical entry require sealing from damp.
Final Thoughts
Since paddle switch have an inherent and essential part in the industry, calibrating the flow rate ideally is needed. The liquid flow rate can be defined by holding the changes in effective speed or energy. The speed relies on the force changes that force the fluid through the pipe or duct. Since the pipe's cross-sectional area is identified and fixed, the speed will be a big sign of the flow rate. Calibrating the flow rate is vital as it aids set the flow switches to a pre-decided close working.
