Sensor combines technologies to confirm results
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System Sensor Europe product story
Edited by the Engineeringtalk editorial team
Sep 24, 2002
The 2351TEM multicriteria photoelectric smoke and thermal detector is the most sophisticated product in the Series 300 family of conventional detectors from System Sensor Europe.
Certified to three European standards - EN54 part 5 (2000) class A1R, EN54 part 7 (2000) and CEA4021 - the 2351TEM multicriteria photoelectric smoke and thermal detector is the most sophisticated product in the Series 300 family of conventional detectors from System Sensor Europe.
Responsive to both fast flaming and slow smouldering fires, it is an ideal replacement for the outmoded and environmentally unfriendly ionisation detector.
The unit incorporates a discrete optical chamber and a separate thermal element, both of which are continually monitored by an onboard processor using specifically developed algorithms.
An alarm signal is only enabled in the detector once the processor is satisfied that an incipient fire has been detected.
By using a combination of inputs, the incidence of nuisance alarms is reduced while at the same time the response time to an actual fire is also improved.
The 2351TEM includes many features previously the preserve of more complex and expensive analogue addressable sensors.
Its unique address can be read by the family's zonal display unit to give the exact location of the fire within the fire zone.
The detector's sensitivity can be optimised to its application by selecting from one of three preset alarm thresholds, and drift compensation algorithms ensure a consistent alarm sensitivity threshold between routine maintenances.
Uniquely, a remote handheld programmer can be used to set the sensitivity, read/write the last maintenance date, read the chamber contamination level, read the value of thermal element and perform an alarm test.
The Series 300 family is backwards compatible with the previous generation of System Sensor conventional detector bases, enabling existing installations to be upgraded, extended and maintained.
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