Hydrostatic Continuous Level Transmitter
Such are paddle type level switches which constantly rotate and are mainly a spring loaded and are rotating vanes on being driven harshly.
Simply consider the following explicit formulae:
Pressure P(liq) on any surface and container walls at depth h, by the liquid of desnity d, is:
P(liq) = d × g × h + P(air)
where P(air) refers to the air pressure and g denotes the acceleration due to gravity (constant for a given place) at the place of liquid container. Replacing constants the equation becomes:
P(liq) – P(air) = K × h in short: Liquid levels are showcased through pressure difference. One convenient unit that absorbs pressure with level is mHO (pressure felt at depth in meters while it is put in water) Trumen hydrostatic pressure transmitter manages pressure which is output by liquid P(liq) and it is further substracted by air pressure P(air) by making use of a single pressure sensitive diaphragm and air-vent is also provided for, in the connection cable. As Trumen hydrostatic pressure transducer is plunged deeper into liquid, the P(liq) becomes higher than P(air) and the diphragm minutely starts to split.
Such a deformation of the diaphragm does not appear visible pretty clearly, but it is captured by piezo-resistive sensors on the sensitive diaphgram.
Thus, pressure which is released by liquid is sensed by Trumen hydrostatic sensor which directly refers to the depth from the surface of lquid.
P(liq) – P(air) = K × h