Smoke detector system

Photoelectric smoke detector manual

Product introduction

This product is called photoelectric smoke detector (hereinafter

(called a detector) detects smoke with two infrared diodes.

The detection principle is that the granules in the smoke can reflect infrared light. Infrared diodes are placed in the special chamber. The room can protect the outside light, but it does not affect the smoke in it. While there is no smoke, the diode can receive very weak infrared light. When smoke enters the room, the diode can receive more and more light, and the detector can emit an alarm signal when the smoke reaches a certain density. In order to reduce interference and reduce power consumption, the emitting circuit adopts pulsed signal. According to the networking approach, the product is divided into two-wire and four-wire detectors.

Product feature

• Strong ability to adapt to circumstances

• SMT design, high stability

9-35VDC wide voltage

• Low standby current

• Non-polarized power supply input

• The power LED is flashing

• Optional N.C./N.O. alarm relay (4 wires)

• Remote LED indicator output (2 wires)

Technical Specifications

Product category

2 wire 4 wire

Operating voltage

DC 9V-35V

Standby current

55 and 100 and

Current alarm

20-25 mA at 12V 30~35 mA at 12V 40-50 mA at 24V

Alarm signal

Turn on the red LED

The temperature range of

-10°C ~ +50°C

moisture

0%~95% RH (non-condensing)

The result of the alarm

Remote LED relay

Communication evaluation

N/A 0.5A at 28V DC

sensitive

0.15 dB/m (+/-0.03 dB/m)

standard

EN54-7, UL268

The dimension

Diameter 98.5 mm and depth 43.5 mm

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