Description

LEVEL SWITCH SERIES SSW70

The SSW70 switches series can measure liquid level, density and interface level in closed or open vessels. They convert buoyant force exerted by a displacer immersed in a liquid to a proportional current signal thanks to a mechanical force transmission device based on a torque tube and a piezoresistive sensor.
The Spriano® measuring cell contains the sensor and transmits the level value to the electronics. Thermal drift is compensated using the temperature signal generated by a PTC thermistor integrated in the sensor itself. Based on these readings the microprocessor generates a standard ON/OFF signal output, shows the measurement on the display and command a contact depending by a set threshold.