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Model D371 UV/IR/IR/IR

The Detectors Inc. Models D371 UV/IR/IR/IR Multi-Spectrum Flame Detector(Patent pending) represents a new generation of optical flame detector designed and optimized to respond to both the Hydrocarbon and Non-Hydrocarbon based fires while rejecting False Alarm Sources. The Model 371 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) in conjunction with hard-coded Algorithms identifying specific wavelengths of Energy. Together, the detector can identify Hydrocarbon fires at distances of 150+ feet and low energy Non-Hydrocarbon fires at distance of 100+ feet, all this while rejecting false alarm sources.
The Models D371 is a stand-alone fire & flame detector in a watertight NEMA 4X (IP66) 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.

    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 (Trade Mark)
    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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