Emerson Rosemount 3051S MultiVariable Reference Manual page 44

Configuration
October 2018
Note
If the flow rate is configured as the primary variable and is being output via the 4–20 mA
signal, verify the 4–20 mA range (LRV and URV) after completing the custom unit
configuration. For more information on verifying the 4–20 mA range, see
configuration.
Follow these steps to configure a custom unit:
Procedure
1. Custom Unit: Enter the desired custom unit label to be displayed for the flow rate.
2. Base Unit: From the drop-down menu, select a base unit to be used for the custom
3. Base per Custom: Enter a numeric value that represents the number of base units
4. Select Apply.
5. Flow Rate Unit: From the drop-down menu, select the custom unit that was
Results
Note
The custom unit may not be available as a selection in the Flow 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 - Flow tab.
44
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."
unit relationship.
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 =
The values of Base per Custom for common flow units are shown in
created in Step 2.
Reference Manual
00809-0100-4803
Basic device
= = 1000
Table
Rosemount 3051S Multivariable Transmitter
2-9.