Averaging Pitot Tube

Product Details:

FLOXACTTM PROBE - Multifunctional air flow probe

FloXact probe measures air velocity / air volume in HVAC systems. Its intelligent design makes for easy installation in existing ducts or terminals. Operating on the pitot tube principle, FloXact probe measures the total (PTOTAL) and static (PSTATIC) pressure components of air flow. The probe determines average air velocity, measured over 6, 8, or 10 precisely positioned sensing ports, depending on the length of ducts. The unique shape (patent pending) of the probe profile creates a linear amplification of at least 2.5 times the velocity pressure (PVEL), providing accurate measurement of lower air velocities down to 1.0 m/s (200 FPM). Chamfered entrances to the sensing ports eliminate air-direction affects, making the FloXact probe insensitive to approaching multi-directional, rotating airflow with yaw and pitch up to 30º from straight flow.

FloXact probe is easy to install and completes an accurate and costeffective air flow station, when combined with a differential pressure transmitter. The probe integrates with most differential pressure transmitters, yet improved accuracy is obtained when output is linear to airflow rather than pressure. HK Instruments DPT-Flow line of air flow transmitters pairs well with FloXact probe.

Key Features:

• Multi-point averaging based on the “Log-Tchebycheff“ method, providing greater accuracy
• Chamfered sensing points ensure consistent readings
• Easy installation in existing air ducts or terminals
• 2% accuracy
• 2.5 times linear amplification of Velocity Pressure
• Accepts 1/4” OD tubing