relative pressure transmitter / piezoresistive / membrane / with analog output
EC series FineTek Co., Ltd.



  • Pressure type:


  • Technology:

    piezoresistive, membrane

  • Output signal:

    with analog output, digital

  • Mounting:


  • Other characteristics:

    for liquids and gases, for water treatment

  • Process temperature:

    Min.: -10 °C (14 °F)

    Max.: 150 °C (302 °F)

  • Pressure range:

    Min.: 0.1 bar (1.45 psi)

    Max.: 100 bar (1,450.38 psi)


The EC series is a hydrostatic pressure level transmitter for measuring the level of liquids in various tanks and other types of vessels. The EC hydrostatic pressure level transmitter consists of a piezoresistive sensor and Wheatstone bridge to directly measure head pressure exerted on the diaphragm of the EC level transmitter. When the pressure is exerted on the diaphragm, as a result of the liquid level, the pressure is transferred to the Wheatstone bridge electrical circuit through silicon oil contained in the EC sensing unit. This creates a differential voltage, which is then amplified to create a variable 4-20mA output that varies as a result of the changing liquid level. In addition, a pressure transducer is available for measuring pressure in tanks or pipes and producing a variable 4-20mA output.
•Completely submersible liquid level transmitter •Wide variety of sensors, e.g. extension tube or flexible cable, standard or high temperature •Measuring range up to 328ft (100m) •4-20mA output, 2-wire loop powered •Pressure transducer also available