Emerson Micro Motion SGM Series - Configure Energy Content Measurement Using Prolink III

Procedure
1. Choose Device Tools > Configuration > Process Measurement > Line Density.
2. Set Density Unit to the unit to be used for line density, and click Apply.
This unit is also used for base density.
3. Verify the value of Line Pressure.
4. Verify the value of Line Temperature.
5. Set Base Pressure to the pressure value to which density measurements will be
corrected (the reference pressure).
The default is 1 bar absolute. There is no upper limit. You must be using absolute
pressure.
This value is also used in base density measurement. Be sure that the value is
appropriate for both process variables.
6. Set Base Temperature to the temperature value to which density measurements will
be corrected (the reference temperature).
The default is 20 °C. The range is −50 °C to +200 °C.
This value is also used in base density measurement. Be sure that the value is
appropriate for both process variables.
7. (Relative density meters only) Set Density of Air to the value to be used in your
application.
The default is 0.000122305 g/cm³. The range is 0.0001 g/cm³ to 0.00015 g/cm³.
7.7
Configure energy content measurement using
ProLink III
ProLink III Device Tools > Configuration > Process Measurement > Calorific Value/BTU/Wobbe In-
dex/Energy Flow
Overview
The energy content parameters are used to measure and calculate calorific value, Wobbe
index, and energy flow.
Prerequisites
You must be able to supply gas composition data to the meter, for the following
constituents:
• Carbon monoxide (CO)
• Carbon dioxide (CO2)
• Nitrogen (N2)
Configure process measurement using ProLink III
64 Micro Motion
®
Gas Specific Gravity Meters (SGM)