Differential pressure anemometer
Commissioning Air Systems (BG 49/2015), written by Chris Parsloe and published by BSRIA in March 2015, explains how to commission ducted air distribution systems in buildings. It was originally published in 2013 and was then updated in 2015.
It states: ‘A differential pressure anemometer has no rotating parts and is closer in operating principle to the pitot tube than the rotating vane anemometer. However, the instrument has a similar profile to a 100 mm rotating vane anemometer and will fit into a similar proprietary plastic hood. The accuracy of the device is often dependent on the associated micromanometer used to display the readings, but typically it has an equivalent accuracy to the rotating vane anemometer at ±5% of the indicated value if calibrated for flow rate, or ±2% of the indicated value and ± 0.05 m/s when calibrated for air velocity.’
--BSRIA
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