Signaling device FOS

Automated processes use intelligent signalling systems to keep you informed at all times about the status of your entire plant and any faults that may arise. You can even install signalling devices for rupture discs that have already been installed. To evaluate the signals, we offer you an isolating switching amplifier with a relay output, which ensures an intrinsically safe quiescent circuit. The potential-free relay contact is used for safe system shutdown or alarming. The fibre optic FOS rupture membrane is used to monitor leakages and the response of rupture discs under highly corrosive conditions and in hazardous areas where electrical connections are not possible. The signalling element carries no current and consists of a glass fibre with a thickness of less than 250 μm. When the rupture disc opens, the optical fibre circuit tears and the circuit is broken. The downstream evaluation unit transmits a signal, which can be used to trigger visual or acoustic alarms and to shut down the plant.