The Analogue Addressable Smoke Detector (2251BPI) is a plug-in photoelectric smoke detector with analogue addressable communication.

The smoke level in the sensor chamber is monitored continuously and reported to the fire panel. The alarm threshold for each individual 2251BPI detector is programmable in the fire panel configuration software.

The detector’s address on the analogue addressable loop is easily set using rotary address switches. A suitably configured fire panel will identify the location of any detector which has triggered an alarm, defect or maintenance signal.

Features

• Analogue addressable communications
• Automatic drift compensation
• Stable communication technique with noise immunity
• Variable sensitivity to smoke
• Low standby current
• Rotary address switches
• Address range 1 to 159
• Up to
• 159 detectors per loop (F220, F120A)
• 99 detectors per loop (F100A)
• Dual red LEDs for 360° visibility
• Optional Remote LED accessory

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