Features of Displacer Level Switch
These Switches are the most versatile for level control and have advantages over float
type switches in the control of agitated liquids paints-varnishes & heavy oil and
foaming liquids. The Displacer weight is heavier than the liquid which is suspended by a
spring. When the liquid rises the displacer looses the weight, this causes the spring to
retract slightly to a new equilibrium position. This retract of the spring interchanges
the position of the Magnet provided at the top and actuates the switch. Upto three
independent switch junctions are available in the single unit, with broad choice of
operating sequences. These are flange mounted and are available with a choice of
material of construction.It is based on buoyancy principle and is available in different
material of construction for a variety of switching functions. The instrument can be
used for level switching function in large tanks upto 15m, in turbulent liquids and even
without steel pipes. The switch position can be adjusted at site depending upon the
requirement. It works reliably upto 200 C temperature & 40 Kg/cm pressure. The Material
of construction may be MS, SS304/SS316 or PP and the enclosure protection confirms to
IP56/IP65/Ex-proof IIA & IIB or IIC. It is economical for large vessels & can be easily
transported.
