Products - Mosaic-Type Built-In Devices
The eyeball indicator is preferably used in situations that require visual simulation of the circuit or operating state of a device and indication of the fault position in addition to the ON and OFF positions. Eyeball indicators are particularly suitable for monitoring busbars and line disconnectors in complex transformer substations that are represented in the form of a mimic diagram of relatively small dimensions. As the eyeball indicator can be installed at the nodal point of the busbars, the mounting space can be reduced considerably. This space saving advantage increases even further with the number of busbars used in the system.
Eyeball indicators are also used by the chemical industry, for example, to monitor valves and slides in supervisory flow diagrams.
The eyeball indicator has an electromagnetic drive which upon activation of the ON or OFF coil turns the rotating ball in the front of the housing by approximately 90 degrees to the right or left. At zero current, a simple spring system holds the ball in the exact centre position.Eyeball Indicator