Cubic equations: units conversion table – General Tools and Instruments DCFM8901 User Manual
Page 15

We would suggest to set the free area
dimension before you start measuring
the air velocity so after you measure the
air velocity, you can jump to the air flow
mode to view the cubic feet per minute
without further changing the free area
dimension.
3
CFM (ft /min)
2
= Air Velocity (ft/min)xArea (ft )
3
CMM (m /min)
2
= Air Velocity (m/sec)xArea (m ) x 60
Cubic equations:
Units Conversion Table:
1 m/s=
1 ft/min=
1 knots=
1 km/hr=
1 mph=
m/s
1
0.00508
0.5144
0.2778
0.4464
ft/min
196.87
1
101.27
54.69
87.89
knots
1.944
0.00987
1
0.54
0.8679
1 m/s=
1 ft/min=
1 knots=
1 km/hr=
1 mph=
km/hr
3.6
0.01829
1.8519
1
1.6071
mph
2.24
0.01138
1.1523
0.6222
1
Note:
On initial start up the unit will display
pH, knots. (See Fig.15)
MIN
mil/h cfm
AVG
REC
FLOW
km/h cms
AREA
m/s
vel
Hold PH Knots
ft/m
2
ft
2
m
MAX
Fig.15
14
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