Membrane level indicator with sensitivity adjustment. Is to be used to control the maximum or minimum level of bulk solids in silos or vessels and can adjust the pressure to actuate the switch.
These controllers consist of a switch actuated by a membrane and it is recommended for dusty and powdery, granulated and grainy bulk goods like dust, flour, grain, sand, plastic, etc. with an easy flow and a bulk density from 0.3 to 2.5 t/m3.
Function:
The membrane must to be exposed to the material.
The movement of the switch is the result of the pressure exerted by the incoming bulk material against the membrane which forces the membrane to move backwards, reversing the position of the switch and the signal is used for example to control the transport system in the silo.