Sierra InnovaMass 240i Series, Instruction Manual, Page: 99 / 115

99
Appendix: C Glossary
A B C D
A Cross sectional area.
ACFM
Actual Cubic Feet Per Minute (volumetric flow rate).
ASME
American Society of Mechanical Engineers
Bluff Body
A non-streamlined body placed into a flow stream to create vortices.
Bluff body also called a Shedder Bar.
BTU
British Thermal Unit, an energy measurement.
Cenelec
European Electrical Code
Compressibility
A factor used to correct for the non-ideal changes in
Factor
a fluid’s density due to changes in temperature and/or pressure.
CSA
Canadian Standards Association
d
Width of a bluff body or shedder bar
D
Diameter of a flow channel
E F G H
f Frequency of vortices generated in a vortex flow
meter, usually in Hz
Flow Channel
A pipe, duct, stack, or channel containing flowing fluid.
Flow Profile
A map of the fluid velocity vector (usually non-uniform) in a cross-
sectional plane of a flow channel (usually along a diameter).
FM
Factory Mutual
Ft
Foot, 12 inches, a measure of length
Ft^2
Square feet, measure of area
Ft^3
Cubic feet, measure of volume
GPM
Gallons Per Minute
Hz
Hertz, cycles per second
I J K L
Inline Flow Meter A flow meter which includes a short section of piping which is put
inline
with the user’s piping.
Insertion Flow Meter
A flow meter which is inserted into a hole in the user’s pipeline.
Joule
A unit of energy equal to one watt for one second. Also equal to a
Newton-meter.