This unit measures in Standardized Meters per second. That means to do a comparison between a standard anemometer and this instrument you need to use the gas law equation and adjust the velocity from standard to actual air flow i.e. Pressure_actual*Volume_actual/Temperature_actual = Pressure_standard*Volume_standard/Temperature_standard The standardized temperature and pressure for this instrument are 25DegC 760mmHg Therefore if we are making the measurement at 24.4DegC and 750mmHg the correction factor will need to be. (Volume_actual is proportional to Velocity_actual because the cross sectional area is a constant) Velocity_actual= Velocity_standard * (Pressure_standard/Pressure_actual) * (Temperature_actual_K/Temperature_standard_K) For the above example... this is Velocity_actual=Velocity_standard* (760/750) * ((24.4+273.15)/(25+273.15)) = 1.01 |
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TechRentals > Product Notes >
KURZ 2443-24 |