Hochiki ESP Addressable Optical/Heat/CO Multisensor Detector (White Case) (ACD-EN(WHT))

The Hochiki ACD-EN(WHT) is an addressable, loop-powered multi-sensor with optical smoke, heat and carbon monoxide (CO) sensing elements, supplied in a white case for Hochiki ESP intelligent fire alarm systems. It offers 24 EN-approved modes of operation and matches the rest of the ESP sensor range. The CO element can be used to help detect fire as well as life-threatening CO levels, acting as a CO alarm. Control panel compatibility is required.

Key features

• Heat, optical and CO sensing elements
• 24 EN-approved modes of operation
• CO alarm (COHb) facility
• 10 year CO sensor life (dependent on operational usage)
• Programmable fire threshold level
• Remote indicator and LED controllable separately (panel dependent)
• Two-colour LED: green when polling, red in fire
• Low profile design

Technical specifications

• Operating voltage: 17-41 V DC
• Loop pulse voltage: 7-9 V DC
• Quiescent current: 410 µA (typ.)
• Loop current when polled: 22 mA ±20%
• Remote indicator current: 8.0 mA ±20%
• LED current: 9.1 mA
• Surge current: 40 mA (for 50 ms)
• Maximum consumption: 30 mA
• Operating temperature: -10°C to +50°C
• Relative humidity: below 95% RH at 40°C; below 80% RH at 50°C
• Storage temperature: -20°C to +50°C
• Case: white polycarbonate outer cover
• Dimensions: 100 mm diameter x 45 mm high (without base)
• Weight: 105 g (without base)
• Compatible bases: YBN-R/3, YBN-R/3(SCI), YBO-BS, YBO-BSB2
• Ingress protection: IP42
• Approvals: EN 54-5, EN 54-7, EN 54-26, EN 54-29, EN 54-30, EN 54-31, CEA 4021
• Note: this sensor does not support sleep mode