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
