EE75 High accuracy air flow sensor for industrial applications.

EE75 High accuracy air flow sensor for industrial applications.

EE75 High accuracy air flow sensor for industrial applications.
Measuring principle of thermal dispersion
Measuring range from 0÷40 m/s
Output signal 0÷10 V - 0÷20 mA - 4÷20 mA
Process connection 1/2"
Materials custody AlSi3Cu - Stainless steel probe - the sensor head PBT
Temperature up to 120 °C - Pressure up to 10 bar
Price on request
The EE75 series air velocity transmitters were developed to obtain accurate measuring results over a wide range of velocities and temperatures. A high quality hot film sensor element based on cutting edge thin film technology ensures maximum sensitivity, even at lowest mass flows. At the same time, the innovative probe design produces reliable measuring results at high flow velocities of up to 40m/s (8,000 ft/min). The integrated temperature compensation minimises the temperature cross sensitivity of the EE75 series which, combined with the robust mechanical design, allows it to be used at process temperatures between -40÷120 °C (-40÷248 °F). In addition to air velocity and temperature values, the transmitter calculates the volumetric flow rate in m³/h or ft³/min. The cross section of the duct needs to be determined for this purpose and the volumetric flow rate can be displayed and directed to one of the analogue outputs. The EE75 series can be used to measure the velocity of other gases as well, although a correction has to be applied to the unit at the factory.

• Monitoring incoming and outgoing air (energy management) in HVAC applications
• Filter monitoring and laminar flow control in cleanrooms
• Exhaust systems, exhaust hoods and glove boxes in the pharmaceutical, bio and semiconductor industries
• Mass flow measurement during incineration processes
• Monitoring and measurement of compressed air systems
• Air conveying systems
• Wind tunnels and climate simulators

• High accuracy
• Working range 0÷40 m/s (0÷8000 ft/min) and -40÷120 °C (-40÷248 °F)
• Measurement of air velocity and temperature
• Calculation of volumetric flow rate
• Low dependence on angle of inflow
• Probe diameter 8mm (0.3”)
• Remote probe up to 10m (32.8 ft)
• Easy mounting and maintenance
• Correction for pressure, humidity and media low flow cut-off
• Pressure tight up to 10 bar (145 psi)
• SI and US units selectable

    Technical Characteristics

    Measuring principle:
      • Thermal mass
      Measuring range / adjustment:
        • 0÷40 [m/s]
        Precision Class:
          • ±0,2% VFS
          Outputs available:
            • USB
            • 0÷10 [V]
            • 0÷20 [mA]
            • 4÷20 [mA]
            Operating voltage [V]:
              • 24 Vac/dc
              Operating temperature:
                • -40÷+120 [°C]
                Pressure max:
                  • 10 [Bar]
                  Process connection:
                    • Threaded: 1/2"
                    Materials in contact with the media:
                      • PBT
                      • Stainless steel AISI 316
                      • Brass
                      Degree of protection:
                        • IP65
                          • EC Declaration of Conformity