Top Mounting Displacer Level Switch

Working Principle:

The displacer immersed in the liquid is subjected to downwards gravity, upwards buoyancy and upwards spring force, when the three forces reach a balance, the displacer will be static at a certain position. The displacer is connected with the magnetic stem. When the displacer moves upwards which makes the magnetic stem get into the control point’s magnetic field, under magnetic induction and magnetic coupling, the magnetic-controlling switch’s contact acts to close or open; when the displacer moves downwards which makes the magnetic stem leave away the control point’s magnetic field, the magnetic-controlling switch’s contact resets.

Technical Data:

● Switch contact: 10A, 250VDC; 5A, 250 AC.
● Insulation resistance: ≥ 1.0 x 10^12 Ω
● Electric strength: ≥ 12.0 MV/m
● Heat resistance: distortion temperature ≥ 480 ℃
● Maximum operation pressure: based on the process condition
● Ageing resistance: Outdoor exposure to sunlight for 10 years, strength not lower than 60%.
● Operation temperature or aluminum wiring box: -50 ~ 480 ℃
● Weather-proof: IP65
● Electrical connection: M20*1.5 female thread
● Explosion-proof: Exia II CT4, Exd IIBT4
● Options item: Isolate safe barrier