TERRANOVA® is a group gathering the oldest and most historical Italian Brands of Process Instrumentation: Spriano® (1923), Valcom® (1974) and Mec-Rela® (1976).

Head Office
Via Rosso Medardo 16, 20159 Milano, Italy
Operative Office
Via Gramsci 1, 26827 Terranova dei Passerini (LO), Italy

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    The SSW71 series SMART float level switches are microprocessor based instruments with an ON/OFF output signal. They can be remotely configured by a universal hand held terminal (HHT) or by PC with a dedicated interface.
    Moreover, it is possible to configure locally the instruments (set threshold) by means of 2 push buttons and to display the current measured level on the display.



    Inside the float is placed a magnet which drives, without contact, reed contacts located inside a pipe that can itself be the guide of the float. Moving along its guide pipe, the float changes the reed contact status. These variations are then acquired and processed by the electronic board.
    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.

    Additional information

    Application Cases


    Measuring Range

    Process Connection

    Process Temperature

    Accuracy Class