miVac vacuum concentrators are excellent laboratory work horses! To enhance their performance further a pressure display and controller has been developed. The miVac pressure controller can be added to any modular miVac system and allows the user full control over the running pressure in the system. A vacuum ramping mode is included so that concentration can be commenced gently and is used to help prevent bumping or spitting. For users who are uncertain of the appropriate pressures to choose an automatic mode can be used which controls the vacuum profile.