Patent ID: 11909398
Assignee: EPPENDORF SE
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 12:
13. The method according to claim 9, wherein
the monitoring device has a first detection device which detects the switched-on state of the first electrical switch when the electrical operating voltage is present between the first contact and the second contact and signals this state to the sequence controller,
the monitoring device is connected to the first electrical switch via a fifth contact on the equipment side and to the second electrical switch via a sixth contact on the equipment side,
the monitoring device has a third detection device which detects a switched-on state of the first electrical switch and of the second electrical switch when the electrical operating voltage is present between the fifth contact and the sixth contact and signals this state to the sequence controller, and
the sequence controller blocks the operation of the laboratory equipment or stops a process to be controlled by it if, after switching on the first electrical switch and the second electrical switch, the particular switched-on state is not signaled to it both by the first detection device and by the third detection device.