Emerson Rosemount OCX 8800 Reference Manual page 155

Figure 7-9:
Situation #2
The transmitter in situation #1 is installed below the tank in a position where the liquid
column in the impulse line, when the tank is empty, is equivalent to 2.0 psi
Reference Manual
Function block diagram for a pressure transmitter used in level
measurement
Foundation Fieldbus
(Figure 7-10).
145