High Accuracy Air Flow Sensor for Industrial Applications


The EE75 air velocity transmitters are optimized for high accuracy up to 40 m/s (8000 ft/min) over the temperature range -40…120 °C (-40…248 °F).

EE75 air velocity sensor for duct mounting with display

EE75 air velocity sensor with remote probe

The high-end air velocity sensor element operates on the hot film anemometer principle and which stands out by high sensitivity even at very low air speed and high insensitivity to pollution. 

The robust sensing probe and enclosure allow for EE75 use in harsh industrial environment as well as in applications with pressure rating up to 10 bar (145 psi).

Beside measuring air velocity and temperature, EE75 calculates the volumetric flow rate in m³/h or ft³/min based on the cross section of the duct, with an appropriate factory correction. The EE75 can be used to measure the velocity of various non-flammable and non-corrosive gases.

    Technical Data

    Measuring Range - Air velocity
    0...2 m/s (0...400 ft/min)
    0...10 m/s (0...2000 ft/min)
    0...40 m/s (0...8000 ft/min)
    Accuracy - Air Velocity
    0.06...2 m/s: ±0.03 m/s
    0.15...10 m/s: ±(0.1 m/s + 1% of mv)
    0.2...40 m/s: ±(0.2 m/s + 1% of mv)
    Measuring Range - Temperature
    -40...120 °C (-40...248°F)
    Accuracy - Temperature
    ±0.5 °C (±0.9 °F)
    Operating range
    0...40 m/s (0...8000 ft/min)
    -40...120 °C (-40...248 °F)
    pressure-tight models up to max. 10bar
    freely scaleable in the ranges of
    0-10V and 0-20mA (e.g. 4...20mA)
    24V AC/DC

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