Alnor Rotating Vanes

Alnor Rotating Vane Anemometers are designed for technicians who need reliable airflow measurements without complex setup. Their mechanical averaging via a large rotating vane gives steady readings even in turbulent streams, making them a strong choice for terminal measurements.

Use Cases

• Face Velocity at Terminals: Assess supply and return performance quickly.
• Intake/Exhaust Checks: Verify airflow direction and relative magnitude at air handlers and rooftop equipment.
• Quick Balancing: Compute airflow using accurate area inputs or flow cones for fast decisions.

Advantages

• Intuitive Operation: Minimal training required for confident measurements.
• Durable Design: Built to handle daily field use and transport between sites.
• Flexible Accessories: Flow cones and extensions adapt to a variety of tasks.

Tips for Accurate Results

• Align With Flow: Keep the vane parallel to the airstream.
• Traverse and Average: Move across a grid at large faces to generate representative readings.
• Input Accuracy: Confirm grille dimensions when computing volume from velocity.
• Environmental Awareness: Avoid cross drafts that can bias readings.

Selection Considerations

• Vane Size: Larger vanes tend to deliver more stable averages; smaller vanes fit tighter spots.
• Range and Resolution: Match your expected velocity range for best performance.
• Data Features: Select logging if you produce detailed deliverables.

Alnor vane anemometers complement capture hoods and micromanometers by offering fast, consistent airflow readings in a simple, rugged package.