Laboratory-sized vacuum processes such as drying, distillation and sample preparation each require their own respective performance characteristics regarding pumping speed, ultimate vacuum and continuous parameter adaptation. Vacuubrands chemistry pumping unit PC 3001 VARIO meets these demands in an all in one solution. It builds on its predecessor PC 2001 and the chemistry diaphragm pump MD 1C, combined with user friendly control technology the vacuum controller CVC 3000. It has a more intuitive user control interface due to a new simple to use jog wheel and large clear text display. Bidirectional data communication via serial interface RS 232C comes as standard. The pumping unit provides fully automatic process control without any user programming.