Patent ID: 7544046

Claim:
A vacuum pump comprising: a pump unit with a vacuum pumping set, an operating unit connected with the pump unit for controlling the pump unit and arranged spaced from the pump unit, and transceiver modules in the pump unit and the operating unit, respectively, for transmitting and receiving control and operational data bidirectionally in a wireless manner, the pump unit and the operating unit being exclusively connected with each other in a wireless manner, wherein the pump unit comprises: a pump control and a supervisory module for continuous supervision of the transceiver module even if no control or operational data at all are exchanged between the pump unit and the operating unit, the supervisory module regularly inducing the transceiver module at intervals of a few seconds at maximum to emit a presence signal, the pump control switching the pumping set to a safety mode when the supervisory module signals an interruption of the reception of a control signal continuously transmitted by the transceiver module of the operating unit.