Conventional Photoelectric Smoke Detector, FGS-604

The FG FGS-604 conventional photoelectric smoke detector is designed for use within conventional fire alarm systems in residential and commercial applications.

It uses a pair of infrared diodes inside a specially designed sensing chamber. The chamber helps shield the detector from external light while allowing smoke to enter.

Under normal conditions, the receiving diode detects only a very weak infrared signal. When smoke enters the chamber, smoke particles reflect the infrared light and increase the received signal. When the smoke reaches the operating density, the detector generates an alarm signal and the red status LED illuminates.

The detector uses a pulsed emitting circuit to help reduce interference and lower power consumption. According to the catalogue, it is available in both 2-wire and 4-wire versions.

Key Features:

• Conventional photoelectric smoke detector.
• Infrared optical sensing technology.
• Special sensing chamber designed to block external light.
• Red LED alarm indication.
• Supports a remote LED indicator.
• Available in 2-wire and 4-wire versions.
• Wide operating-voltage range from 9 to 35V DC.
• Low standby-current consumption.
• Sensitivity range from 0.08 to 0.16dB/m.
• Compact circular design for ceiling mounting.
• Suitable for residential and commercial applications.

Technical Specifications:

• Operating voltage: DC 9V to 35V.
• Standby current: Up to 50µA.
• Alarm current at 12V: 20 to 25mA.
• Alarm current at 24V: 40 to 50mA.
• Alarm indication: Red LED.
• Remote output: Remote LED.
• Sensitivity: 0.08 to 0.16dB/m.
• Temperature range: 0°C to 50°C.
• Environmental humidity: Up to 95% RH, non-condensing.
• Dimensions: 99mm diameter × 43.5mm high.

Product number: FGS-604.