When the RadiCentre® is turned on buy a beeping sound can be heard it means that the Interlock plug has been tripped. This can be intentionally in the case that the interlock is connected to a safety lock on an EMC chamber door or because due to the Interlock plug not being plugged in.

Plug in the Interlock plug to stop the beeing set the RadiCentre® to a state in which the it can be used for testing and measurements.