Hochiki Detection Fire Alarm

Conventional Photoelectric Smoke Detector

The SOC-24VN is a reliable, high quality Photoelectric Smoke Detector. It can be used in all areas where Photoelectric Smoke Detectors are required. The computer-designed smoke chamber makes the SOC-24VN well suited for detecting smoldering fires as well as fast-flaming fires.

NS-4 Series, NS-6 Series, HSC-4R or HSC-R Style bases may be used with the SOC-24VN.

The SOC-24VN photoelectric smoke detector utilizes one bicolored LED for indication of status. In a normal standby condition the LED flash Green every 3 seconds. When the detector senses that its sensitivity has drifted outside the UL listed sensitivity window the LED will flash Red every 3 seconds. When the detector senses smoke and goes into alarm the status LED will latch on Red.

The detector utilizes an infrared LED light source and silicon photodiode receiving element in the smoke chamber. In a normal standby condition, the receiving element receives no light from the pulsing LED light source. In the event of a fire, smoke enters the detector smoke chamber and light is reflected from the smoke particles to the receiving element. The light received is converted into an electronic signal.

Features

• Computer-designed non-directional smoke chamber
• 360° view of detector status LED
• Low profile, 2" high (with base)
• 2 or 4 wire base compatibility, relay bases available
• Highly stable operation, RF/Transient protection
• Low standby current, 59μA at 24VDC
• One built-in power/sensitivity supervision/alarm LED
• Automatic Sensitivity window verification function meets outlined requirements in NFPA 72, Chapter 2 & 7, Inspection, Testing and Maintenance
• Without Magnetic Test Feature