The E+E EE650 Air Velocity Transmitter is engineered for accurate and reliable air velocity measurements in building automation and ventilation scenarios—critical for optimizing HVAC efficiency and indoor air quality. It features the innovative VTQ air velocity sensor element, which operates on the thermal anemometer principle and is produced by E+E using state-of-the-art thin film technology. The VTQ sensor’s unique design makes it highly robust and largely insensitive to pollution, a key advantage that ensures consistent performance and extends the transmitter’s long-term reliability.

The EE650’s enclosure design and the included mounting flange simplify both initial installation and future replacement, reducing downtime for maintenance or upgrades. For added flexibility, users can adjust the transmitter’s settings via a digital interface, allowing customization to match specific application requirements (e.g., output signal, measurement range).

Typical applications for the EE650 include:

• HVAC: Integrating with heating, ventilation, and air conditioning systems to monitor air flow and optimize energy use.
• Ventilation control: Regulating air velocity in ventilation systems to maintain consistent indoor air quality and comfort.
• Ventilation systems: Providing real-time air velocity data for commercial, residential, or industrial ventilation setups.

Features

• Hot film technology (VTQ sensor element) for accurate, stable measurements and resistance to environmental interference.
• Multiple measuring range options to fit diverse ventilation and HVAC needs:
  • 0 to 2000 ft/min (0 to 10 m/s)
  • 0 to 3000 ft/min (0 to 15 m/s)
  • 0 to 4000 ft/min (0 to 20 m/s)
• Versatile output signals (4 to 20mA, 0 to 10V, RS485) for seamless integration with building automation systems, controllers, or data loggers.
• High resistance to pollution, minimizing sensor fouling and reducing the need for frequent cleaning or calibration.
• IP65 / NEMA 4 enclosure, protecting the transmitter from dust, water jets, and harsh environmental conditions in building mechanical rooms.
• Remote probe with IP20 protection, suitable for installation in ductwork or areas where limited dust protection is sufficient.
• No moving parts, eliminating mechanical wear and tear—enhancing durability and reducing maintenance costs over time.
• User-adjustable via digital interface, enabling on-site customization without specialized tools.
• Included mounting flange for easy installation and replacement, streamlining setup and maintenance workflows.