Notifier NFX-SMT2-IV Opal Optical Heat Multi-Sensor (Ivory)

The Notifier NFX-SMT2-IV is an Opal NFX-series analogue addressable multi-criteria detector that combines an optical smoke sensor with a rate-of-rise heat sensor. This is the ivory version without an isolator.

The heat sensor supports the optical sensor, which improves false-alarm immunity and gives a faster response to a wide range of developing fires. In areas where normal daytime activity could cause false alarms, the detector can be programmed to work as heat-only and then return automatically to optical/heat mode. NFX-series detectors support the Opal (Advanced) protocol and remain compatible with the earlier CLIP protocol.

Key features

• Two independent sensing elements, optical and rate-of-rise heat, managed by on-board software
• Programmable heat-only mode for times of day with a higher false-alarm risk
• Tri-colour LEDs (red, green and amber)
• Rotary switch addressing (159 addresses available)
• 100% electrically and mechanically compatible with previous series
• Ivory finish
• No isolator

Technical specifications

• Operating voltage: 15 to 32 V DC
• Standby current: 250 µA at 24 V DC
• Operating temperature: -30 °C to +70 °C
• Relative humidity: 10% to 95%, non-condensing
• Diameter: 102 mm
• Weight: 99 g
• Cable size: up to 2.5 mm²
• Material: PC/ABS
• Standards: EN 54-5 and EN 54-7
• Compatible base: B501AP