How do I know that my vacuum pump can pull down sufficiently?

Perform this test to ensure VP55/VP85 and your micron gauge are working properly.

1. Connect your vacuum gauge directly to a port on VP55/VP85.
2. Seal the 3 other ports.
3. Ensure the gas ballast is closed.
4. Turn on VP55/VP85 to create a vacuum at your gauge.

If your gauge measures below 200 microns within 1 minute, you know VP55/VP85 and your micron gauge are working correctly. If your gauge does not reach 200 microns, there is a problem with your gauge, VP55/VP85, or both.