APOLLO Smoke Detector Series 65 Optical

Standards: EN 54-7
Approvals: BOSEC,CPR,FG, LPCB, SBSC, VdS
Weight: 99g
Materials Housing: Polycarbonate
Materials Terminals: Nickel-plated stainless steel
Product Length: 42mm
Product Diameter: 100mm
Detection Principle: Photo-electric light scattering.
Sensor Configuration: Horizontal optical bench housing infra-red emitter and a sensor arranged radially to detect forward scattered light.

RM95.00

The Series 65 Optical Smoke Detector uses light-sensing technology to detect a fire. The external detector moulding has an indicator LED which is white in the quiescent state but produces red light in alarm.

Brand Features

  • Wide-operating voltage of 9–33 V DC
  • Wide-operating and storage temperature of -20°C to +60°C
  • Can be used on security systems
  • Electrically and mechanically compatible with Series 60
  • Proven detection performance

Key Features

  • Responds well to slow-burning, smouldering fires
  • Well-suited to bedrooms and escape routes
  • Unaffected by wind or atmospheric pressure
  • Flashing LED and magnet operated test switch option

The Series 65 Optical Smoke Detector has a moulded self-extinguishing white polycarbonate case with wind resistant smoke inlets. Nickel plated stainless steel wiper contacts connect the detector to the base. Inside the case a printed circuit board has the optical system mounted on one side and the signal processing electronics on the other. The sensing chamber is a black moulding configured as a labyrinth which prevents penetration of ambient light. The labyrinth has a fine gauze insect-resistant cover. The chamber houses an infrared light emitting diode (LED) and a photo-diode which has an integral visible-light filter as extra protection against ambient light.

When smoke enters the chamber, a fraction of the collimated light is scattered onto the photo-diode. If the resulting signal from the photo-diode is above a preset threshold, the LED emits two more bursts of light, this time at two-second intervals. If light is scattered onto the photo-diode by both these pulses – due to the presence of smoke – the detector signals an alarm state by switching the alarm latch on, increasing the current drawn from the supply from about 40μA to a maximum of 75mA. This fall in the impedance of the detector is recognised by the control panel as an alarm signal.

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