Vessel Dimension A [21] - Siemens SITRANS P Operating Instructions Manual

The parameter is visible when you have selected the "Hold at 0, square root" (VSOFF or
MSOFF) characteristic curve using the "Application" parameter.
Setting range:
Factory setting:
See also
Volume and mass flow measurements (Page 115)
9.2.19

Vessel dimension A [21]

Sets the height of the vessel bottom for the following vessel shapes:
● Conical bottom vessel (CONIC)
● Parabolic bottom vessel (PARAB)
● Half sphere bottom vessel (HALF)
● Flat sloped bottom vessel (FLAT)
For a lying parabolic ends vessel (PARAE) the set value corresponds to the height of the end
piece.
You can find a figure with the different vessel shapes under "Volume measurement
(Page 118)".
Setting range:
Factory setting:
For the calculated volume to correspond to the actual vessel volume, set the parameters
Vessel dimension A and Vessel dimension L as follows:
● Vessel dimension L + 2 • Vessel dimension A = 100%.
Example: Vessel dimension L is 80% and vessel dimension A is 10%.
Overfilling the vessel
To avoid overfilling the vessel, set a limit alarm: The limit must be below the maximum
measuring range
SITRANS P320/P420 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E44852162-AC
0% - 100%
10%
0 to 100%
0%
WARNING
①
and have a sufficient minimum distance to the top edge of the vessel.
9.2 Parameter assignment over device with display
Parameter assignment
133