Emerson Rosemount 3051S MultiVariable - Page 49

Procedure
1. Custom Unit: Enter the desired custom unit label to be displayed for the energy
rate. Up to five characters including letters, numbers, and symbols can be entered
in the custom unit field.
Note
It is recommended that the Custom Unit be entered in upper case letters If lower
case letters are entered, the LCD display will show upper case letters. Additionally,
the following special characters are recognized by the LCD display: hyphens (“-”),
percent symbols (“%”), asterisks (“*”), forward slashes (“/”) and spaces. Any other
character entered for the Custom Unit will be displayed as an asterisk (“*”) on the
LCD display. The following warning will be returned indicating these changes:
“Custom Unit contains characters that will display in upper case or asterisks on LCD
display. The DCS will display as entered.”
2. Base Unit: From the drop-down menu, select a base unit to be used for the custom
unit relationship.
3. Base per Custom: Enter a numeric value that represents the number of base units
per one custom unit. The Rosemount 3051SMV uses the following convention: Base
per Custom =
Example
Custom Unit: kg Base Unit: g
Because:
1 kg (Kilogram) = 1000 g (Grams)
Base per Custom = = = 1000 The values of
Base per Custom for common energy units are shown in Table 2-10.
4. Select Apply.
5. Energy Rate Unit: From the drop-down menu, select the custom unit that was
created in Step 2.
Example
Note
The custom unit may not be available as a selection in the Energy Rate Unit drop-down
menu until the drop-down menu is refreshed. To refresh the drop- down menu, navigate
to the Basic Setup tab and then return to the Variables - Energy tab.
Table 2-10: Common Custom Units - Energy Flow
Custom unit Base unit Base per custom
BTU per Day (BTU/D) Btu/h 0.041667
BTU per Minute (BTU/M) Btu/h 60
Megajoules per Day (MJ/D) MJ/h 0.041667
Reference Manual Configuration
00809-0100-4803 October 2018
Emerson.com/Rosemount 49