Hochiki ESP Intelligent Marine Approved Multi-Heat Detector (White) (ATJ-ENM(WHT))

The Hochiki ATJ-ENM(WHT) is a marine-approved analogue addressable multi-heat sensor in a white case, fully compatible with Hochiki's ESP analogue addressable protocol.

It combines a variable fixed temperature heat element with a rate of rise element. Both are controlled from the panel, so either element or both together can be used to make the fire decision. The polling LEDs can also be set to pulse or not from the panel. 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

• User selectable modes
• Fixed temperature and rate of rise heat elements
• Twin LEDs for 360° viewing: green when polling, red in fire
• Pulsing/non-pulsing controlled from the panel (panel compatibility required)
• Electronically addressed (TCH-B200)
• Approved to MED by DNV

Technical specifications

• Ordering code: ATJ-ENM(WHT) (white)
• Operating voltage: 17 to 41 VDC
• Low power mode (typical): 110 µA
• Quiescent current: 350 µA typical at 24 VDC
• 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
• Colour / material: white / polycarbonate
• Weight: 95 g
• Dimensions: Ø 100 x H 45 mm
• Base fixing centres: 48 to 74 mm
• Compatible bases: YBN-R/3M, YBN-R/3M(WHT), YBN-R/3(SCI)M, YBN-R/3(WHT)-SCI
• Approvals: DNV rules for classification (ships); IMO FSS Code chapter 9; location classes temperature B, humidity A, vibration A, EMC B