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DOCUMENT TITLE
ULTRASONIC FLOWMETER SERIES 6, MODELS Q.SONIC
PLUS
SUBTITLE
QUICK START MANUAL
DOCUMENT NUMBER
22.100.200.000.02/2
REVISION
B
REVISION DATE
2013-02-22
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detrimental to our interests and that all copies will be returned immediately on demand
PAGE
9 OF 29
22.100.200.000.02_2_B ULTRASONIC FLOWMETER SERIES 6.DOC
3.2
Correction after calibration
After flow calibration the meter can be adjusted either through an adjust factor or through
linearization. How the meter is adjusted can be visualized at the display (see chapter 6.1).
3.3
Volume flow at line conditions
The volume flow at line conditions
Q
Line
is the (adjusted) profile-corrected gas velocity
V
line
multiplied by the internal cross section
A
of the flow cell:
[ ]
h
m
D
V
t
A
V
Q
line
line
line
3
2
3600
4
⋅
⋅
⋅
=
⋅
⋅
=
π
Equation 2: calculation of the line volume flowrate
where:
Q
Line
the volume flow at line conditions
V
line
the adjusted profile-corrected gas velocity
D
the internal diameter of the meter
A
the internal crosssection of the flow cell
t
time coefficient to go from seconds to hours.