calorimetric flow meter / for liquids / compact / electronic
flow-captor 4311.30M/xx



  • Technology:


  • Fluid:

    for liquids

  • Other characteristics:

    with analog output, compact, 4-20 mA, metal tube, precision, electronic, non-invasive, stainless steel, in-line, corrosion-resistant, rugged, IP67

  • Applications:

    for water treatment, industrial, for low flow rates, for the pharmaceutical industry, for high flow rates, for harsh environments, for dosing, sanitary, HVAC, irrigation, for wastewater treatment, for the beverage industry, for corrosive environments

  • Process pressure:

    Max.: 30 bar (435.11 psi)

    Min.: 0 bar (0 psi)

  • Process temperature:

    Max.: 80 °C (176 °F)

    Min.: -10 °C (14 °F)


Inline flow meter with analog output 4-20mA in a rugged stainless steel version (full encapsulation)

for water- and oil-based liquids (other media on request )

- operating principle: calorimetric (thermal)
- measuring range: 0 - 20 cm/s to 0 - 100 cm/s
- IP67 suitable for wash down and harsh conditions
- pipe options: 8 - 28mm diameter

Supply voltage: 18 - 30 VDC

The flow-captor type 4311.30M/xx is a non-reactive flow meter, ideal for all measurement and control tasks in automation processes or other industrial applications. The 4311.30M/xx is an inline model specially designed for installation in smaller pipe diameters. The sensor works according to the calorimetric measuring principle. The detection takes place in the inline tube, whereby the sensor measures the "heat flow" depending on the flow velocity of the medium and converts it into a linearized, flow-proportional, electrical signal.

- robust stainless steel construction (special potting)
- for smaller pipes from OD8 up to OD28
- analogue current output 4 – 20 mA
- separate potentiometers for zero point and measuring range
- fully electronic functionality without mechanically moving parts
- LED display for output status
- ISO 9001:2015

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flow captor