Emerson MSP400RH, IP2046IM manual Spec. P

4.4.4 Selecting the correct Profile algorithm.	Screen display:	ProF
	Factory default value:	Linear

This selection is offered only if the user has chosen a duty of Flow or Contents, or is shown when manually navigating the main menu - ignore if duty chosen is Level or Distance.

The MSP400 is pre-programmed with a selection of popular profiles which are mathematical formulae to convert a linear level reading to a flow or volumetric PV.

Once converted, the 4-20mA and the display of the unit will operate according to the flow or volumetric PV.

The options available are described in the following sections:

4.4.4.1 Flow measurement

3/2	Flume 3/2 flow law
5/2	V-Notch 5/2 flow law
mann	Manning formula
PAr 1	1 ft Parshall flume
PAr 2	2 ft Parshall flume
PAr 3	3 ft Parshall flume
PAr 4	4 ft Parshall flume
PAr 5	5 ft Parshall flume
PAr 6	6 ft Parshall flume
PAr 7	7 ft Parshall flume
PAr 8	8 ft Parshall flume
FF01	Flume Flat 1
:
:
:
FP07	Flume Parabolic 7

The last 30 options for flow FF01 - FP07 comprise a selection of pre-defined standard flow structures which may be of use if none of the other profiles suit. Refer to Appendix D for details.

Note, when scrolling around the profile option loop, all flow and contents profiles are shown.

There are two other profiles which are available but which are not visible when programming the MSP400 using the push buttons.

SPEC. P	Special plotted : only used if the MSP400 has been configured by a HART master such as
	the Mobrey MCU900 series controller or Mobrey H-Conf401 software
SPEC.C	Special calculated : used when a standard profile is not available from the MSP400 library.
	Allows the user to enter a Power law and a K factor, for example for a small Parshall flume or
	to modify the K factor or power to allow for imperfections in standard flow structures.

To change the flow profile:

a)Press the green button ↓ to display the “ProF” menu entry screen.

b)Press the blue button → to display the current selection. If this selection is correct, press the red button ↵ to return to the main menu.

c)To change the profile to one of the other options, press the blue button → to enter the “ProF” menu. The current selection will now be flashing, indicating it may be changed.

d)Press the green button ↓ to scroll through the list of available profile options, as given in the table above.

18	IP2046/IM
	Nov 2006