The modular OVEM series of vacuum generators combines functionality, reliability and a large display into a compact unit that can be adapted to the customer's needs. Integrated valves ensure fast switching times, permitting fast aspiration and precise placement of a workpiece. The series is equipped with an integrated fault analysis and diagnostic function, is user friendly and requires little maintenance. Clearly laid out actuating elements ensure a simple installation and use, while high-quality materials ensure the product's long service life. The classic design structures the separate functional areas.