Units of measure (UoM)


Defines units of measure for counting parts, time durations, custom attributes and other purposes.

Where used


Data fields

This is the complete name for the unit of measure. Unlike most other Name attributes, this value is limited to 4 characters, such as each, mm, kg and ohms.
While this field can accept units of measure with Unicode characters (like cm² and ), keep in mind that older downstream software, like some manufacturing applications, may not know how to interpret these characters. You may want to test your other computer systems before using Unicode in your PDXpert data.
This describes the unit of measure more fully.
UoM category
Use this dropdown list to select the appropriate category for the current unit of measure. Refer to the UoM Categories collection topic for more information.
Ensure that the correct category is selected. You cannot change this value after the new member is saved.
Measurement locale
You can specify whether a unit of measure is associated with one of the principal regional measurement systems, or is globally applied.
Conversion constant
This number represents the number of default units required to make a current unit. That is, there are [conversion constant] x [default members] per [this member]. The default member is, by definition, equal to 1.0.
So the question you answer is: How many default members do you need to equal this member?
Example: There are 100 centimeters in one meter. If the default member for the Length UoM Category is centimeter (conversion constant = 1), then the conversion constant for meter would equal 100. Conversely, if the meter member is the default (conversion constant = 1), then the conversion constant for centimeter would equal 0.01.
Active: users can select
Default member of collection
Permanent member of collection
For a description of these checkboxes, see the Collections reference > Managing collections help topic.

Setup suggestions

Keep poorly characterized unit types ("carton", "as needed", etc.) to a minimum, since they are not convertible to other compatible units on part lists.


Learn More
Help Guide Contents [PDF]