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E+E EE741 - Inline Thermal Mass Flow Meter (Compressed Air & Gas)

E+E EE741 - Inline Thermal Mass Flow Meter (Compressed Air & Gas)

The EE741 in-line flow meter can be easily adapted for any measuring task. It is dedicated for accurate metering and monitoring of compressed air and technical gases in DN 15 to DN50 pipes.

The thermal measuring principle and the well proven E+E hot film sensor element lead to best long-term stability and fast response time.

Outstanding measuring accuracy, even in the lower measuring range, is achieved by an application-specific multi-point factory adjustment performed at 7 bar (102 psi). This allows reliable leak detection and corresponding energy savings. The construction of the EE741 flow meter is optimised for easy installation and maintenance.

Modular design

One and the same transmitter can be used for each of three pipe diameters:

  • EE741: DN15 (1/2") / DN20 (3/4") / DN25 (1")
  • EE741-N50: DN32 (1-1/4") / DN40 (1-1/2") / DN50 (2")

The pipe diameter is easily set via the display menu or the EE-PCS product configuration software.

Once the gauge mounting block is installed in the pipeline, the transmitter can be installed and removed without any pipework. As a result, the EE741 flow meter is also ideal for temporary measurement at several installed mounting blocks. The sealing plug included in the scope of supply enable the normal operation of the compressed air system when the transmitter is removed.

Display (optional)

The state-of-the-art LCD shows the current measured values and the overall consumption. The EE741 setup can be easily performed with the push buttons and intuitive menu guidance. The display can be rotated in 90° increments with a push button for convenient orientation in any mounting position of the flow meter.

Typical Applications

  • Compressed air consumption measurement
  • Monitoring of technical gases O2, N2, Ar, CO₂. Other gases upon request
  • Nitrogen generators
  • Leak detection
Specification
  • Measured values

    • standardized volumetric flow, mass flow, standardized flow, temperature, consumption

    Pipe diameter

    • DN15 / DN20 / DN25
    • DN32 / DN40 / DN50

    Measuring range - flow

    • DN15: 0.2 - 76.3 Nm³/h (0.12 - 44.88 SCFM)
    • DN20: 0.4 - 135.6 Nm³/h (0.24 - 79.77 SCFM)
    • DN25: 0.6 - 212 Nm³/h (0.36 - 124.71 SCFM)

    Measuring range - flow

    • DN32: 0.9 - 347.4 Nm³/h (0.52 - 202.06 SCFM)
    • DN40: 1.4 - 542.8 Nm³/h (0.81 - 315.71 SCFM)
    • DN50: 2.2 - 848.2 Nm³/h (1.22 - 493.35 SCFM)

    Accuracy - flow (*measured value)

    • ±(3 % of mv* + 0.3% of full scale)

    Measuring range - temperature

    • -20...60 °C (-4...140 °F)

    Accuracy - temperature

    • ± 0.7 °C (1.26 °F)

    Outputs

    • 0/4-20 mA, Pulse, Switch, Modbus RTU, M-Bus or IO-Link

    Supply

    • 18 - 30 V DC
Technical specification
  • Unique ref.ee741
  • Product familyAir Velocity and Flow
  • Product groupInline Flow Meters
  • TypeObject (single object)
  • Date of publishing2026-06-24
  • Edition number1
Related
  • Designed inAustria
  • Manufactured inAustria
Classification
  • BIMobject CategoryElectrical - Sensors

Region availability

North America
Anguilla
Antigua and Barbuda
Aruba
Barbados
Belize
Bermuda
British Virgin Islands
Canada
Caribbean Netherlands
Cayman Islands
Collectivity of Saint Martin
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Greenland
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Montserrat
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Pierre and Miquelon
Saint Vincent and the Grenadines
Saint-Barthélemy
Sint Maarten
The Bahamas
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States
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