850 series

Torsion Tube transmitter - level indicator / Controller

s8503 forms of control available: ON-OFF, P and P+I. Scale width 100 mm.


For liquid level control in industrial or process plants.

The instrument directly detects the level of the substance being measured, compares the measured variable to a reference point, and displays a pneumatic standard signal of 0.2 to 1 bar or 3 to 15 psi. The displayed pressure activates the final control element: the pneumatic valve.

Three control forms are available: ON/OFF, Proportional, Proportional + Reset.

The device can also be used for remote process control when working as a pneumatic transmitter (0.2÷1 bar or 3÷15 psi).