Figure 2-41: Square Root Output Transition Point
5.6
5.424
4.8
4.096
4
10
Full scale
flow (%)
Full scale output (mA dc)
8.9
5
0.6
0
0 0.6 0.8 1
Sq. root curve
Transition point
Slope = 41.72
Slope = 1
% Pressure input
20
16
12
7.2
5.4
4
100
90
80
70
60
50
40
30
20
10
0
0
20
40
60
80
100
Sq. root curve
Transition point
Linear section
Figure 2-41
only applies to the square root output for the Rosemount 3051SMV with the
direct process variable output feature board.
Note
For a flow turndown of greater than 10:1, it is not recommended to perform a square root
transfer function in the transmitter. Instead, perform the square root transfer function in
the control system.
2.8 Menu trees and Field Communicator Fast Keys
Based on the configuration ordered, some measurements (i.e. static pressure, process
temperature) and/or calculation types (i.e. mass, volumetric, and energy flow) may not be
available for all fluid types. Available measurements and/or calculation types are
determined by the multivariable type and measurement type codes ordered. See Ordering
information for more information.
The menu trees and Field Communicator Fast Keys in this section are shown for the
following model codes:
• Multivariable type M (fully compensated mass and energy flow) with measurement
type 1 (differential pressure, static pressure, and process temperature)
• Multivariable type P (direct process variable output) with measurement type 1
(differential pressure, static pressure, and process temperature)
The menu trees and 475 Field Communicator Fast Keys for other model codes will vary.
Configuration Reference Manual
October 2018 00809-0100-4803
62 Rosemount 3051S Multivariable Transmitter
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