(How to Use the Extech VPC300)
13. On the same screen, press the button to set/save the Sample Mode and return to the
Particle Settings screen.
(Again, if you did it correctly, you will briefly see the word “Success” flash in white letters in
the bottom left corner of the Sample Mode screen.)
Now you’re ready to run your first sample.
14. Return to the Particle Measurement screen before running your first test.