Working principle

Working principle

The magnetic level indicator is mounted at the side or top of a liquid vessel with thread- or flange connections. The level indicator consist of a piping column within a float containing a fixed magnet. The float is calculated to fixes the magnet at the same level as the liquid level. Clamped to the piping column in total isolation from the process liquid is a visual indicator housing that containes roller magnets . The rollermagnets are fully enclosed so vibration and high temperatures have no effect on units accuracy and reliability. The individual roller magnets couples with the float magnet as the float moves up or down within the piping column. Float movement rotates the roller magnets ( with 1 side red and the other side white) and change their colour. Red for liquid level and white for the gas side.

MLG Instrumens can supply the magnetic level gauge(s) with the following optional electronical devices:

  • Switches, SPDT or SPST
  • Transmitter (4-20 mA / 2-wire )
  • Transmitter with local display ( loop / 4-20 mA / 2-wire)
  • Transmitter 4-20 mA with Magnetostrictive working principle