Emerson Process Management 2051 manual Rosemount, Reference Manual, 00809-0200-4101,Rev AA July

Rosemount 2051

Reference Manual

00809-0200-4101, Rev AA July 2008

Figure 3-1. Situation #2

Diagram.

16 ft

Full Tank

7.0 psi measured at

the transmitter

Solution to Situation #2

Table 3-3. Analog Input function block configuration for a pressure transmitter used in level measurement

(situation #1).

Table 3-3 lists the appropriate configuration settings.

Parameter	Configured Values
L_TYPE	Indirect
XD_SCALE	0 to 7 psi
OUT_SCALE	0 to 16 ft
Channel	1 - pressure

Output calculation for Situation #2

When the L_Type is configured as Indirect, the OUT parameter is calculated as:

OUT = PV – XD_SCALE_0% * (OUT_SCALE_100% – OUT_SCALE_0%) + OUT_SCALE_0%

XD_SCALE_100% – XD_SCALE_0%

In this example, when PV is 5 psi, then the OUT parameter will be calculated as follows:

OUT = 5 psi – 0 psi * (16 ft. – 0 ft.) + 0 ft. = 11.43 ft.

7 psi – 0 psi

3-7