Description

The Hochiki ALK-V Photoelectric Smoke Sensor is an intelligent addressable smoke detector designed to provide early warning of fire conditions in commercial and industrial fire alarm systems. The Hochiki ALK-V Photoelectric Smoke Sensor utilizes advanced photoelectric sensing technology and Digital Communication Protocol (DCP) communication to deliver fast, reliable smoke detection while minimizing nuisance alarms. Therefore, it is an effective solution for facilities requiring dependable life safety protection.

Hochiki ALK-V Photoelectric Smoke Sensor Performance

The Hochiki ALK-V Photoelectric Smoke Sensor is particularly effective at detecting optically dense smoke generated by smoldering fires involving materials such as plastics, foam, furnishings, and similar products. As a result, it provides early fire detection while maintaining excellent immunity to false alarms. In addition, the detector responds effectively to both smoldering and flaming fire conditions.

Intelligent Addressable Communication

The ALK-V communicates with compatible fire alarm control panels using Hochiki’s Digital Communication Protocol (DCP). Consequently, alarm conditions, status information, and maintenance data are transmitted quickly and accurately. Moreover, DCP communication provides improved noise immunity and fast system response times.

Automatic Contamination Compensation

This detector automatically adjusts for contamination that may accumulate within the sensing chamber over time. Therefore, detection performance remains stable while reducing unnecessary service calls. Furthermore, automatic compensation helps extend maintenance intervals and improve overall system reliability.

Advanced Sensor Design

The detection chamber uses a light-emitting diode and photodiode arrangement designed to identify smoke particles entering the chamber. As a result, the detector provides consistent smoke detection across a wide range of environmental conditions. Additionally, the non-directional smoke chamber allows smoke to enter from multiple directions for enhanced sensitivity.

Built-In Status Indicators

The Hochiki ALK-V includes two built-in LEDs that provide clear indication of normal operation and alarm conditions. Consequently, technicians can quickly identify detector status during inspections, testing, and maintenance procedures. Moreover, the detector includes a built-in fire test feature for convenient verification of operation.

Technical Specifications

• Model: ALK-V
• Type: Addressable Photoelectric Smoke Sensor
• Operating Voltage: 17–41 VDC
• Communication Protocol: DCP (Digital Communication Protocol)
• Standby Current: 390 μA typical
• Alarm Current: 8 mA
• Operating Temperature: 14°F to 122°F (-10°C to 50°C)
• Humidity: Up to 95% RH non-condensing
• Air Velocity: 0–4000 ft/min
• Weight: 3.4 oz (sensor only)
• Color: Bone (PC/ABS blend housing)

Compatible Bases

The ALK-V is compatible with:

• YBN-NSA-4 4-inch base
• HSB-NSA-6 6-inch base
• ASB analog sounder base

This compatibility provides installation flexibility for a wide range of applications.

Applications

The Hochiki ALK-V Photoelectric Smoke Sensor is ideal for:

• Commercial office buildings
• Educational facilities
• Healthcare environments
• Industrial facilities
• Government buildings
• Institutional properties

Reliable Addressable Smoke Detection Solution

The Hochiki ALK-V Photoelectric Smoke Sensor combines intelligent addressable communication, automatic contamination compensation, and advanced photoelectric sensing technology. Overall, it enhances fire alarm system performance by providing accurate smoke detection, simplified maintenance, and dependable life safety protection.

ALK-V Datasheet