The Hochiki ALN-ENM is a marine-approved analogue addressable photoelectric (optical) smoke sensor in an ivory case, fully compatible with Hochiki's ESP analogue addressable protocol.
Hochiki's High Performance chamber removes the need for ionisation sensors in most applications and allows a higher threshold level, improving the signal-to-noise ratio and reducing false alarms. The chamber is easy to remove for cleaning and its baffle design lets smoke in while keeping out ambient light. Hochiki's marine range is based on its ESP and CDX ranges and is approved for marine use by DNV under the EU Marine Equipment Directive (MED), for ships, oil platforms, offshore installations and wind farms.
Key features
- Removable High Performance chamber
- Twin LEDs for 360° viewing: green when polling, amber when isolating, red in fire
- Locking mechanism (sensor to base)
- Variable sensitivity
- Electronically addressed (TCH-B200)
- Pulsing/non-pulsing controlled from the panel (panel compatibility required)
- Approved by DNV-GL and MED
Technical specifications
- Ordering code: ALN-ENM (ivory)
- Colour: ivory
- Operating voltage: 17 to 41 VDC
- Low power mode (typical): 120 µA
- Quiescent current (typical): 400 µA
- Maximum current consumption: 30 mA
- Alarm current (controlled by panel): 9.1 mA (excluding remote indicator)
- Transmission: digital communications using ESP
- 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: Ø 100 x H 45 mm
- Compatible bases: YBO-BS, YBO-BSB2, YBN-R/3(SCI)M
- Base fixing centres: 48 to 74 mm
- IP rating: IP42
- Approvals: DNV rules for classification (ships); IMO FSS Code chapter 9; location classes temperature B, humidity A, vibration A, EMC B
