GENERAL DESCRIPTION

The Addressable Multipoint ASD is a plug-in type smoke detector that utilizes a photo-electric sensing chamber to make a measurement corresponding to smoke density. The device also incorporates a thermistor sensing circuit to allow for accurate heat measurement. These elements allow the device to be configured to one of 3 smoke, 3 heat or a combined setting. The device can also be fitted with an integral sounder or sounder/strobe capable of providing one of 7 different tones, operating at 65, 80 or 85dB(A) dependant on programming. This feature reduces the requirement for fitting extra annunciation devices. The detector is designed with a single colour red LED to indicate the device status; 400ms flashing indicates that the detector has been activated, 5 second flashing indicates the detector is in fault and 20 second flashing indicates a normal condition. Short circuit isolators are also built into the device in order to protect the system in the event of a cable fault.

TECHNICAL DETAILS

• Dimensions:
  • Diameter: 107mm
  • Depth: 67mm
• Operating Temperature: -10°C to +50°C.
• Voltage Range: 24V to 42V DC
• LED Indication:
  • Normal: 50ms on / 20ms interval
  • Fault: 0.1ms on / 5s interval
  • Fire: 50ms on / 400ms interval
• System Compatibility: SITA200plus: V2.30 onwards Duonet and Quadnet: V1 onwards
• Battery Current @ 24V DC: Quiescent: 0.12mA
• Device Loading Unit Rating: 1