Airflow Instruments Rotating Vanes

Fast Measurements Where You Need Them

Rotating vane anemometers shine in diffuser and grille applications where air is more uniform and velocities are moderate to high. Their mechanical averaging helps stabilize readings and deliver dependable results without complex setup. This makes them a practical choice for commissioning and periodic surveys across large facilities.

Advantages

• Speed and Simplicity: Point, read, and move to the next location.
• Rugged Design: Withstands daily use in field conditions.
• Averaging and Hold Functions: Improve repeatability for documentation.
• Area Entry: Convert velocity to volumetric flow when diffuser dimensions are known.
• Optional Data Logging: Create time-stamped records to support reports.

Applications

• Supply and Return Grille Surveys
• Air Change Rate Verification
• Room Balancing and Seasonal Rechecks
• Diffuser Performance Checks After Maintenance
• Quick Screening Before Detailed Investigations

Selection Checklist

• Vane Size: Larger vanes for grilles; smaller for tight locations.
• Velocity Range: Match expected flows to maintain accuracy.
• Display and Interface: Clear units and easy-to-use averaging.
• Accessories: Cones or adapters that improve measurement stability.
• Calibration: Routine calibration to keep results defensible.

Best Practices

• Hold the vane perpendicular to the flow for consistent readings.
• Use multiple points across large diffusers to account for variability.
• Record diffuser dimensions accurately when converting to flow.
• Combine with micromanometer data to support balancing decisions.

Need help choosing vane size and accessories for your diffuser mix? Our team can recommend configurations aligned with your site.