Setting the Unit System for Models

In the , click the root node (the top node in the model tree). The root node’s name is the name of the MPH-file or before you have saved your work.

In the root node’s window, select the unit system from the list in the section or to turn off unit support.

In the , click the top node for a branch (, for example).

In the window for a node locate the section.

Select the check box, and then select the unit system from the list of unit systems that becomes available.


	To make the results of a model independent of the unit system, make sure to define all material properties and other model settings using unit syntax so that all values are interpreted using the intended units. If you switch from a metric unit system, using kelvin as the temperature unit, to a unit system using degrees Fahrenheit as the temperature, or vice versa, the model results are typically not identical because of the offset involved in the conversion of temperature values.


	To disable unit support in a model, choose None from the list in the Unit System section in the root node’s Settings window and make sure that the corresponding setting for each component is Same as global system. If unit support is turned off only for some components (or if the settings at global and component level differ for a model with a single component) unexpected side effects can occur.

•

•