Configuring - Molecular Weight Calculation
Use the Molecular Weight Calculation to determine the average molecular weight for a mixture of known components.
Select the analyzer Element and the molecular weight Attribute where to load the molecular weight calculated from the composition in the selected Component Measurement Data attribute.

For the attribute’s Data Reference Name, select MW (Molecular Weight).
The Default UOM value should be a molecular weight unit of measure value.
The Value Type should be Double.
Click the Settings button.
The Components Data Reference window opens.

Under Calculation type, select Physical Property Calculations, then click Next.
The Physical Property Calculation window opens.
Select Molecular Weight (this is the only option available since the UOM for the Attribute is in the molecular weight class) and click Next.
The Molecular Weight Calculation window opens.

Fill in the Physical Property Calculation window as described in the table below.
Attribute Description Component Measurement Data The Attribute where the component analysis data is entered. Measurement Basis Select the type of analysis entered in the component measurement data attribute. Physical State Determines the calculation to be used. Solid Gases, Liquids or Solids from Mass FractionsLiquid and Solids from Volume Fractions Liquid Gases, Liquids or Solids from Mass FractionsLiquid and Solids from Volume Fractions Gas Gases, Liquids or Solids from Mass FractionsGases from Molar FractionsGases from Liquid Fractions Note: Configure the component measurement data Attribute before configuring the Molecular Weight calculation, (see Configuring - Analyzer Configuration).
When done with your configuration settings, click Finish.