VACUUM PUMP

摘要

The invention relates to a pump stator (10) and a pump rotor (11). Said pump rotor (11) contains a transponder (14) that can be read out by means of a reader (12) of the pump stator. The pump rotor (11) also contains an identity protection memory (25) in which rotor information is stored. A control unit (20) generates the running of the motor (21) of the vacuum pump only when the related pump rotor (11) is authorised and adapted to the pump stator (10), thereby preventing the use of unauthorised (copied) rotors. Furthermore, it is ensured that the pump rotors cannot be exchanged during maintenance work and rotors can be operated without any risk of damage until the end of the period of use or the end of the service life is signalled.