44
Reference Manual
00809-0200-4840, Rev BA
December 2014
Section 4: Configuration
Setting-up Procedure for “
Special Plot
” Option:
1.
Select the displayed (reported) units for the output PV (see
2.
Draw the graph of PV versus Liquid Height, and note the maximum points.
3.
Enter the
maximum
liquid height into
Profile Height
(
).
4.
Enter the
maximum
volume or flow into
PV Scale Factor
(
).
5.
Enter the distance from the transmitter face to the zero point (Y=0) into the
Bottom
Reference
parameter (
).
6.
Use parameters
Profile Point 1 (P030)
to
Profile Point 10 (P039)
to enter the
percentage values that relate to the X-axis fixed percentages.
Figure 4-2. Two-stage weir cross-section
Note
The origin (0,0) is always used as the start point. It is not a parameter.
It is possible the process value (PV) at the maximum height is less than 100% of the
maximum volume or flow. (See
).
Rectangular
Weir
V-notch
Weir
4–20mA/HART
Rosemount
3107 or 3108
Maximum Height
Prof
il
e Hei
g
ht
(P014)
Bo
ttom R
e
fe
re
nce
(
P
010)
Rosemount
3490 Series
Содержание 3107
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