To create Measurement Types, go through the following steps: 

Step 1: In the main menu, on the left side, click Settings.    

Step 2:Choose the Maintenance option.   

Step 3: Select the Preventive tab. 

Step 4: In the Measurement Types, fill in the fields Designation and Units.  

Step 5: Click save.

After that, you have the information of the Measurement Type you have just created and of all those created previously.

To change Measurement Type information:

                Step 6.1: Click on the edit option.

                Step 6.2: Change the fields that you want.

                Step 6.3: Click on the save option.

Note: You can even delete the Measurement Type. To do this, simply select the delete item and a warning will appear. Click on the Yes option.

Example of how to create Measurement Types: