Détecteurs & accessoires conventionnels


Conventional Photoelectric Smoke Detector

Certificate Datasheet



The 2351E photoelectric smoke detector forms part of the Series 300 range of conventional detectors. This range of detectors has been produced using the latest in manufacturing and design techniques, pushing out the boundaries of existing conventional detector technology. With it’s multitude of innovative features, the Series 300 is a detector which ‘acts conventionally, thinks intelligently’.

The 2351E photoelectric detector incorporates an Application Specific Integrated Circuit (ASIC). Combined with the latest state of the art optical chamber the detector provides efficient and accurate detection of fires with a high level of resilience to non-fire environmental influences.

The 2351E and other detectors in the Series 300 range are backward compatible with the Series 100 detector bases, thus providing the capability to upgrade, extend and maintain existing Series 100 installations. The 2351E detector incorporates a bi-colour LED indicator. The integral LED changes colour according to the detector’s status – Green = Normal, Red = Alarm. This benefits the user by providing clear, instant visual indication of the detector’s condition. The Green LED can be programmed for blink/no blink operation. ‘Drift compensation’ algorithms are one of the key features of the 2351E detector. These algorithms ensure a consistent alarm sensitivity threshold for periods between service intervals. This provides the user with both a reduction in the frequency of nuisance alarms and maintenance savings by extending the period before cleaning of the detector chamber is required.

The sensitivity of a smoke detector is critical to its overall performance, this is reflected in both its ability to detect real fire conditions and its resilience to non-fire stimuli. The 2351E’s performance can be optimised for it’s application by selecting from one of three preset alarm thresholds – Low, Medium and High, offering greater stability and optimum performance within the environment in which it has been installed. The selection is easily achieved through the use of a remote hand-held tool.

The remote hand-held programming unit can also be used in conjunction with the Series 300 range of detectors to gain access to other advanced features. The features available include: read/write last maintenance date, read chamber contamination level, read value of thermal element and perform an alarm test.

  • Low profile design
  • Low current draw
  • Backward compatible with Series 100 detector range of bases
  • Wide operating voltage 8 to 30V
  • Bi-colour LED detector status indicator
  • Automatic drift compensation
  • Programmable sensitivity
  • Addressable feature
  • Advanced maintenance features via remote hand-held test unit
  • Range of detector bases available
  • Tested and approved to EN54 part 7 (2000)
  • Extended warranty

Technical specifications


  • Operating Voltage Range: 8 to 30VDC (Nominal 12/24VDC)
  • Maximum Standby Current (Typical): 120μA
  • Maximum Permissible Alarm Current (LED On): 50mA at 24VDC (Limited by panel)


  • Operating Temperature Range: –30OC to +80OC
  • Humidity: 5 to 95% Relative Humidity (non-condensing)


  • Height: 32.5mm
  • Diameter: 102mm
  • Weight: 75g
  • Max Wire Gauge for Terminals: 1.5mm²
  • Colour: Pantone, warm grey 1C
  • Material: Bayblend FR110