Medical gas alarm relay

Ultra Controlo offers an alarm relay panel that triggers audible and visual alarms on pressure deviation in oxygen, compressed air, vacuum and nitrous oxide distribution systems; a single-zone panel with local and remote alarm outputs for high and low pressure; a relay for valve monitoring that gives open or closed position indication and an alarm output for zone isolation valves; and a 2nd stage alarm relay with high and low pressure alarms for secondary distribution circuits.

In HTM 02-01 (2026), the NHS England guidance, plant alarm systems comprise relays and pressure switches or transducers to initiate the alarms, and all relays should be energised in their closed condition (closed = no fault; open = fault) and must drop open on loss of power. HTM 02-01 calls this a fail-safe design that supports integration with a building management system (BMS).