Relay bases enable security interface for smoke detectors
(06/09/2002)
System Sensor Europe has announced three new relay bases for its ECO 1000 conventional detector family. The 24V latching version for fire systems enables ancillary devices such as door closers or fans to be switched when the detector goes into alarm. The latching and non-latching 12V versions allow the photoelectric, combined photo-thermal and thermal detectors to be controlled from a security panel operating at 12VDC.
The ECO 1000 detectors operate over a wide input voltage range of 8 to 30VDC, enabling the devices to be controlled from both 12VDC security systems and 24VDC fire systems. The 12V relay bases are available in latching and non-latching versions to allow the smoke detector to interface with the two commonly used alternative technologies employed in security system control panels.
In the latching version, both detector and base permanently latch into alarm until the power is removed from the device; in the non-latching version, the relay changes state on alarm. The non-latching base resets by periodically removing and then re-applying power to itself. The relay then changes state back into alarm if the detector is still in an alarm condition.
The low profile relay bases measure 102mm in diameter and 21mm in height, and are compatible with most styles of European back box and conduit.
Related topics: Fire, Health & Safety
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