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FAQ - Frequently Asked Questions

1) What are the operating principles of magnetic proximity sensors?

They are based on an electronic or mechanical principle in which a magnetic field is detected.
Magnetic proximity sensors are used for non-contact position detection and they send an ON-OFF signal to the control system.

2) Which level sensors can be used in liquid chlorine?

Polyamide level sensors can be used in water with low levels of chlorine (such as in a swimming pool).
Polypropylene level sensors should therefore be used in this type of liquid.

See PDF

3) What can I do to fix a level problem (ripple effect) in the application?

To solve this kind of problem, the sensor needs to be placed in an anti-wave system.
Usually, this system consists of a closed tube with 2 holes (you need to take into account the evacuation of air when the level rises).
The smaller the holes are, the bigger the difference is between the actual tank level and level inside the tube. Therefore, a compromise is required: eliminating waves while maintaining a good monitoring level.

4) What are the advantages of using level sensors with a REED switch?

The main advantages are as follows:

  •          No power supply is needed. There is no power consumption when the switch is OFF and it provides complete galvanic insulation. When ON, there is no voltage drop.
  •          It can be used in harsh environments: excessive dust, moisture, etc.
  •          A huge range of detection distances. While this depends on the sensitivity of the REED switch, it is mainly determined by the magnet.
  •          Very cost effective compared to all other existing technologies.