D371 Flame Detector

The D371 is a stand-alone fire & flame detector in a watertight NEMA 4X (IP66/67) and explosion-proof Stainless Steel enclosure designed for indoor/outdoor Class I, Div. 1 (Zone 1) Installations. The detector features an automatic self-test for continuously checking the detector’s optical path integrity while monitoring the electronics to ensure utmost reliable operation and fault reporting.

The D371 3IR +UV Multi-Spectrum Fire & Flame Detector (Patent pending) represents a new generation of optical fire & flame detector designed and optimized to respond to both the Hydrocarbon and Non-Hydrocarbon based fires while rejecting False Alarm Sources. The Protector D371 senses UV radiation in the Ultraviolet spectrum and Infrared radiation in 3 discrete bands of IR Spectrum for detecting fires.

Flame response and false source rejection for the detector is accomplished by utilizing the Convolution Method and Advanced DSP (Digital Signal Processing).

  • 3-5 Second Response Time
  • Multi-Spectrum design for detecting both Hydrocarbon and Non-Hydrocarbon fires
  • Standard outputs: Alarm/Fault/Auxiliary relays, 4-20 mA, and RS485 ModBus®
  • Real-Time Clock and Event recording
  • 200 Event Logs with date & time stamped, and 6 Fire Graphs each 3 seconds long.
  • Multiple selectable sensitivity levels
  • Automatic Self-Test for checking electronic circuitry, and Optical Path Integrity test with OptiRadar®
  • Standard 316 Stainless Steel enclosure
  • Test Mode for manual testing
  • Encased electronics module for easy field installation and removal
  • Pluggable connector for wiring and ease of installation
  • Separate (isolated) field wiring compartment
  • Manufactured in USA with 3-Year Warranty
  • RFI & EMC compliant
  • Designed to SIL 3 requirements

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