Hochiki ALN-EN Analogue Photoelectric Smoke Sensor With SCI

Hochiki ALN-EN Analogue Photoelectric Smoke Sensor With SCI

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AED 258.50

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The Hochiki ALN-EN Analogue Photoelectric Smoke Sensor with SCI is an addressable optical smoke detector engineered for fire alarm systems using Hochiki’s ESP protocol. Equipped with High Performance Chamber technology, an integrated short-circuit isolator (SCI), and 360-degree LED status indicators, it provides fast detection of smoldering fires while preserving addressable loop continuity.

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Description

The Hochiki ALN-EN(SCI) is an analogue addressable photoelectric smoke sensor incorporating High Performance Chamber Technology to deliver exceptional sensitivity and rapid detection of slow-smoldering fires. Communicating via Hochiki’s ESP (Enhanced Systems Protocol), it utilizes an advanced internal chamber baffle that maximizes smoke entry while shielding the light-scattering sensor from ambient room lighting. The sensor features an integrated short-circuit line isolator (SCI) to isolate wiring faults automatically and maintain complete system loop communication. Designed with twin 360-degree status LEDs displaying multi-color operational feedback, electronically programmable sensitivity, and a field-removable chamber for straightforward maintenance, the ALN-EN(SCI) meets stringent EN54-7 and EN54-17 standards

Features

  • Integrated Short-Circuit Isolator: Features onboard hardware loop isolation that automatically isolates short-circuits to preserve communications across the rest of the ESP loop.
  • High-Performance Removable Chamber: Employs a baffle design and removable optical chamber that maximizes smoke entry, blocks ambient light, and simplifies field cleaning.
  • 360-Degree Tri-Color LED Status: Incorporates twin LEDs that give complete 360-degree visual feedback—flashing green during polling, amber when isolating, and solid red on fire alarm.
  • Advanced False Alarm Reduction: Enhanced signal-to-noise ratio and panel-controlled variable sensitivity allow high detection reliability without relying on traditional ionization sensors.

Specifications

  • Brand Name: Hochiki
  • Detector Model: ALN-EN(SCI) (ESP Analogue Addressable Photoelectric Smoke Sensor)
  • Detection Mechanism: High-Performance Photoelectric Light-Scattering Sensing
  • Communication Protocol: Hochiki ESP (Enhanced Systems Protocol)
  • Operating Voltage: 17V DC to 41V DC
  • Quiescent / Standby Current: 400 µA typical (120 µA in Low Power Mode)
  • Alarm Current: 9.1 mA
  • Integrated Isolator: Built-in short-circuit isolator (EN 54-17 compliant)
  • Addressing Method: Electronic addressing (via TCH-B200 handheld programmer)
  • Operating Temperature: -10°C to +50°C
  • Operating Humidity Range: Up to 95% RH (Non-condensing at 40°C)
  • Enclosure Material: ABS Plastic (Ivory or White finish)
  • Physical Dimensions: 100 mm Diameter x 45 mm Height (sensor head only)
  • Product Weight: 95 g
  • Certifications: LPCB & VdS Approved to EN 54-7 & EN 54-17, CE / UKCA Marked

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