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Reference Manual
00809-0100-4840, Rev CB
Appendix F: Programming the 3102 and 3105 using HART
February 2015
Programming the 3102 and 3105 using HART
F.3.13
Flow measurement
lists the Tank Shape/Non-Linear Profile (P011) options that select a
standard flow structure profile and the conversion (scale) factors used to calculate a flow
process value (PV).
Tank Shape/NLP (P011) = “Special Plot”
The “
Special Plot
” option is used for
irregular-shaped
flow profiles.
See
for a full description.
Tank Shape/NLP (P011) = “Flume/Weir-3/2”
This setting is applicable when flow rate measurements are needed from an open channel with a
flume or weir profile (see
Flumes that deviate from the standard “3/2 power law”, e.g. round-bottomed flumes, must
use the “Special Plot” profile option that is based on flow versus height tabulations
(see
).
Setting-up procedure for “Flume/Weir-3/2”:
1.
Use parameter Tank Shape/NLP (P011) to select “Flume/Weir-3/2”.
The transmitter will then automatically populate the parameter Power Factor
(
) with a power factor from
2.
Enter a scale factor into the PV Scale Factor parameter (
Figure F-6. Rectangular Weir Cross-section
4–20 mA/HART
Rosemount
3102 or 3105
Rosemount
3490 Series
Side
View
End View Downstream
Summary of Contents for Rosemount 3101
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Page 34: ...22 Reference Manual 00809 0100 4840 Rev CB Section 3 Installation February 2015 Installation ...
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