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

Tel. +39 0377 911066
Fax +39 0377 919156


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    T7L Series

    T7L series includes Float Reed level transmitters. Inside the float is placed a toroidal magnet which drives, without contact, Reed contacts located inside the guide pipe. Moving along the guide pipe the float changes the reed contact status. These variations are then acquired by the electronic board and converted into a current signal.

    This system enable a continuous level measurement (output 4 ? 20 mA + HART) with high repeatability and linear level indication independently from tank shape, or allows to realize on-off controls by using two floats (output On – Off 5 ? 15 mA).

    Reed chain replacement can be done without dismantling the transmitter from the process and doesn?t need any recalibration.

    As option it is possible a PT100 installation in order to get the local temperature of the fluid.


    T7L series transmitters are used in marine and industry for level detection of liquids tanks.

    The measurement is not affected by parameters such as conductivity, pressure, temperature, viscosity, tank shape, etc.

    Our technical office is at your disposal for special application

    Additional information

    Field of Application

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    Measure Principle

    Measuring Range

    Process Connection

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    Process Temperature


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