407117 Datasheet, PDF(6/6 Page) Extech Instruments Corporation. – Heavy Duty Mini Vane CFM Thermo Anemometer

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407117 Datasheet, PDF (6/6 Pages) Extech Instruments Corporation. – Heavy Duty Mini Vane CFM Thermo Anemometer

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Useful Equations and Conversions

Area equations

Area of a rectangle = W x H

Area of a circle = pi x R 2

Cubic equations

CFM (ft3/min) = Air Velocity (ft/min) x Area (ft2)

CMM (m3/min) = Air Velocity (m/sec) x Area (m2) x 60

Units Conversion Table

1 m/s

1 ft/min

1 knot

1 km/h

1 MPH

m/s

0.00508

0.5144

0.2778

0.4464

ft/min

196.87

101.27

54.69

87.89

knots

1.944

0.00987

0.54

0.8679

km/h

3.6

0.01829

1.8519

1.6071

MPH

2.24

0.01138

1.1523

0.6222

6 Model 407117 - Version 2.1 - November 2005