As name defines, capacitance means material or matters property

to able to store the electric charge in the body of itself, the capacitors

use thin metal layers that are isolated by dielectric medium by

means of material / fluid or any other substance. the capacitance

level indicators works In such manner it has measuring rod that is

generally charged and the other layer for capacitance is considered

as tanks wall that is used. the distance between the sensor rod and

the tank wall is filled with the fluid which acts as dielectric medium.

as the fluid level rises in tank capacitance between tank wall and

sensor rod increases and vice versa. capacitance level indicator.

Device shall be used only with the fluids for which it is rated and

ordered, change in dielectric constants of the fluid will results in

irregularities with output. for such case devices shall be adjusted

with range, span and zero settings for calibration.