Omega MASS FLOW FMA-1900 User Manual page 24

Mass flow meter
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Diatomic
Triatomic
Polyatomic
N
1.040
1
.ooo
0.941
=
A
correction
given
by
the
f
Number
of
Ato
Monatomic
=
The
tempera
upstream
coil
N
O' C).
AT
C,
is
given
in
the
T
(Cal/gm
=
The
coefficie
C,
(gm/min),
= The
mass
flo
m
= The
constant
(2)
H
P
N
mC
AT
H=
' ?eferen
gas.
The
K-factor
is
applied
to
the
where:
=
refers
to
th
)*
(
=
refers
"actual "
gas
),
(6),
(
"K"
factor
defin
= The
0°C
and
760
m
K
= The
volumetr
conditions
of
Q
(1)
where:
Q,/Q,=K
the
tables,
the
fo
so-
called
"nasty "
Interpreting
th
calibrated
wit
In
applying
latly
useful
if
the
a
patticu-
Appendix C. K-factors and Gas Tables
The
following
properties
of
g
and
meters.
T
1.
2.
Calibrating
an

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