KF-500 Standard Type
Applicable to open tank.
Contact point can be set at the length of 1/2B nipple.
Heat resistant model as an option.

Operating Principles

When the water level in the tank rises, the internal pressure of the detecting pipe increases and the diaphragm pushes the micro switch to produce contact output. When the water level falls and the internal pressure of the detecting pipe decreases, the contact output is released by the return force of the micro switch and the weight of the diaphragm.