The Hochiki ALN-EN(BLK) is an intelligent photoelectric smoke sensor in a black case for the Hochiki ESP analogue addressable fire detection system. It uses Hochiki’s High Performance chamber, which lets the alarm threshold be raised to improve the signal-to-noise ratio and reduce false alarms. The chamber can be removed for cleaning, and its baffle design lets smoke in while keeping ambient light out.
Key features
- Removable High Performance smoke chamber
- Twin LEDs give 360° viewing
- Locking mechanism (sensor to base)
- Variable sensitivity, 2 %/m to 4.5 %/m
- Polling LEDs can be set to pulsing or non-pulsing from the panel (control panel compatibility required)
- Electronically addressed with the Hochiki TCH-B200 hand-held programmer
- Approved by LPCB and VdS
- SIL Level 2 approved variant available
Technical specifications
- Ordering code: ALN-EN(BLK) (black)
- Operating voltage: 17 to 41 VDC
- Low power mode: 120 µA (typical)
- Quiescent current: 400 µA (typical)
- Maximum current consumption: 30 mA
- Alarm current (controlled by the panel): 9.1 mA, excluding remote indicator
- Transmission method: digital communications using ESP
- Sensitivity levels: 2 %/m to 4.5 %/m
- Operating temperature: -10 °C to +50 °C
- Operating humidity: 95% RH non-condensing (at 40 °C)
- Storage temperature: -30 °C to +60 °C
- Case material: ABS
- Weight: 95 g
- Dimensions: Ø100 x 45 mm (H)
- Compatible bases: YBN-R/3, YBO-BS, YBO-BSB2, YBN-R/3(SCI)
- Base fixing centres: 48 to 74 mm
- Wind exposure (ref. EN54-7): 1 ± 0.2 m/s
- Ingress protection: IP42
