Emerson Rosemount 3490 Series Reference Manual page 72

Getting started
January 2021
P113 and P114 are in sub-menus/Ch1 Profile and/Ch1 Pre scale at: SETUP →
[CONTROLLER] → INPUT CHANNEL (on 3491/3493) or SETUP → [CONTROLLER] → PV
CALCULATION → CHANNEL 1 (on 3492)
P123 and P124 are in sub-menus/Ch2 Profile and/Ch2 Pre scale at: SETUP → CONTROLLER
→ PV CALCULATION → CHANNEL 2 (on 3492)
Read-only parameters D80* are in the menu MONITOR → READINGS.
Set-up the volumetric contents calculations for a popular
non-linear/non-uniform shaped vessel (advanced users)
The control unit can use level measurements to calculate the volumetric contents or a
non-linear (non-uniform) shaped, closed vessel.
The control unit has a library of popular non-linear vessel shapes:
• Horizontal cylinder with flat ends.
• Spherical vessel.
• Horizontal cylinder with domed ends.
Examples of popular applications are shown in
Note
For other vessel shapes, see
channel profiles (advanced
Popular non-linear (non-uniform) vessel applications
Figure 4-14: Horizontal Cylinder, Flat Ends, Slope Ignored
P113/P123 = Horiz Cyl Flat
P114/P124 = (1.0 / Diameter of tank)
P115/P125 = Plotted non-linear profile of tank
P116/P126 = Full volume of ideal cylindrical tank
72
Figure
Set-up flow calculations for non-linear/non-uniform open
users).
Reference Manual
00809-0100-4841
4-14, Figure 4-15, and Figure
Emerson.com/Rosemount
4-16.