The E+E EE75 Air/Gas Velocity Transmitter is engineered for measurements across wide velocity and temperature ranges, making it versatile for industrial and HVAC scenarios. Its high-quality hot film sensor—based on cutting-edge thin film technology—ensures maximum sensitivity, even at the lowest mass flows. Meanwhile, the innovative probe design delivers reliable results even at high flow velocities, balancing precision across the entire measurement spectrum.

Integrated temperature compensation minimizes the EE75 series’ temperature cross-sensitivity; when combined with its robust mechanical design, this allows operation at process temperatures ranging from -40 to 120°C (-40 to 248°F). Beyond measuring air velocity and temperature, the transmitter calculates volumetric flow rate in m³/min or ft³/min. To enable this function, users only need to input the duct’s cross-section—volumetric flow rate can then be displayed and routed to one of the analog outputs for easy monitoring.

Applications for the EE75 include:

• Monitoring incoming and outgoing air (energy management) in HVAC applications: Helps optimize energy efficiency by tracking air flow in heating and ventilation systems.
• Filter monitoring and laminar flow control in cleanrooms: Ensures consistent air quality and flow for sensitive environments like semiconductor or pharmaceutical cleanrooms.
• Exhaust systems, exhaust hoods and glove boxes in the pharmaceutical, bio and semiconductor industries: Maintains safe air flow to remove contaminants and protect processes.
• Mass flow measurement during incineration processes: Monitors gas flow to ensure efficient and compliant incineration.
• Monitoring and measurement of compressed air systems: Tracks air flow to detect leaks and optimize compressed air usage.
• Air conveying systems: Ensures stable air flow for material transport in industrial conveying setups.
• Wind tunnels and climate simulators: Provides accurate velocity data for testing and simulation in research or industrial settings.

Features

• Hot film sensor for high sensitivity (even at low mass flows) and reliable performance at high flow velocities
• Wide measuring range to cover diverse industrial needs:
  • Air/gas velocity: 0 to 8000ft/min (0 to 40 m/s)
  • Temperature: -40 to 248°F (-40 to 120°C)
• Volumetric flow rate calculation (in m³/min or ft³/min) with duct cross-section input, eliminating manual computation
• Low dependence on angle of inflow, ensuring accurate measurements even with non-ideal air flow direction
• Compact 0.3in (8mm) diameter probe, suitable for installation in narrow ducts or tight spaces
• Remote probe support up to 32.8ft (10m), enabling flexible placement away from the transmitter unit
• Multi-correction functions (pressure, humidity, media low flow cut-off) for enhanced measurement accuracy in varying conditions
• Pressure tight up to 145psi (10bar), durable for high-pressure industrial environments
• Integrated temperature compensation to reduce cross-sensitivity and maintain precision across wide temperature ranges