Emerson Rosemount 3051S MultiVariable Reference Manual page 50

Configuration
October 2018
Table 2-10: Common Custom Units - Energy Flow
Custom unit
Megajoules per Minute (MJ/M)
Thousands of BTU per Day (KBTUD)
Thousands of BTU per Hour (KBTUH)
If conversion factor tables or internet search engines are used to determine the Base per
Custom value, it is important to enter the Custom Unit in the "From" field and the Base
Unit in the "To" Field. An example of this is shown below:
To calculate the Base per Custom value for a custom unit not shown in
of the following examples:
• Energy conversion example:
• Time conversion example:
• Energy and time conversion example:
Energy conversion example
To find the Base per Custom relationship for a custom unit of thousands of BTU per hour
(kBtuh) and a base unit of BTU per hour (Btu/h), input the following:
Custom Unit = kBtuh
Base Unit = Btu/h
Because:
1 kBtu (Thousands of BTU) = 1000 Btu
Then: 1 kBtuh =
1 kBtuh = 1000 Btu/h
Therefore:
50
(continued)
Energy conversion example
Time conversion example
Energy and time conversion example
= 1000 Btu/h
×
Rosemount 3051S Multivariable Transmitter
Reference Manual
00809-0100-4803
Base unit Base per custom
MJ/h 60
Btu/h 41.6667
Btu/h 1000
Table 2-10, see one