Notifier NFX-SMT3-IV Opal Optical Heat & IR Flame Multi-Sensor (Ivory)

The Notifier NFX-SMT3-IV is an Opal NFX-series analogue addressable triple-technology detector that combines optical smoke, heat and infra-red (IR) flame sensing in one device. This is the ivory version without an isolator.

Its microprocessor algorithms combine the three sensing techniques, which gives a marked reduction in unwanted alarms and high immunity to interference. The detector can be programmed to work as heat-only at certain times, then return automatically to normal operation. Drift compensation adjusts for dirt building up in the chamber over time.

Key features

• Three sensors in one device: optical, heat and IR
• Reacts to all visible smoke
• Programmable heat-only mode
• Automatic drift compensation
• Two tri-colour LEDs (red, green and amber) for 360° status indication
• Rotary switch addressing (159 addresses available)
• 2-wire connection for both power and data
• Ivory finish; no isolator

Technical specifications

• Operating voltage: 15 to 32 V DC
• Standby current: 200 µA at 24 V DC (no communication); 300 µA at 24 V DC (LED blinking)
• LED current at 24 V DC: 3.5 mA red, 7.0 mA green, 10.5 mA amber
• Operating temperature: -30 °C to +70 °C
• Relative humidity: 10% to 93%, non-condensing
• Height: 63 mm installed on a B501AP base
• Diameter: 102 mm
• Weight: 99 g
• IP rating: IP30 (IP33 with WB-1AP)
• Material: PC/ABS