Spectrex 40/40I Triple IR (IR3) Flame Detector - Manual (Page 13)

Overview 1
1 Introduction
➣ In this chapter…
Overview page 1
Model and Types page 2
Features and Benefits page 4
Principles of Operation page 4
Performance Considerations page 7
Internal Detector Tests page 15
1.1 Overview
The SharpEye 40/40I is a flame detector that utilizes improved IR3
technology to provide state-of-the-art fire protection. The 40/40I uses
patented digital signal processing to analyze the spectral and dynamic
characteristics of the measured infrared radiation, to identify fire events
with exceptional sensitivity and extreme immunity to false alarms.
All 40/40 series detectors include a heated optical window for improved
performance in icing, snow and condensation conditions.
Detection performance can be easily adapted to all environments,
applications and requirements, by changing the detector’s configuration
parameters. Adjusting these parameters, as well and performing other
maintenance and monitoring tasks, is possible by means of RS485-based
Modbus communication or HART communication (in models with 0-20mA
output).
The detector enclosure is ATEX certified Exd flameproof with an integral,
segregated, rear, Exe terminal compartment (avoiding exposure of the
sensors and electronics to surrounding environment). Hence the combined
approval:
Ex II 2 G D
Ex de IIC T5 Ta -55°C to +75°C
Ex tD A21 IP66/X7 T95°C
or
Ex de IIC T4 Ta -55°C to +85°C
Ex tD A21 IP66/X7 T105°C
The SharpEye 40/40 detectors are designed to operate as a stand-alone unit
directly connected to an alarm system or an automatic fire extinguishing
system. The detector can also be a part of a more complex system, where
many detectors and other devices are integrated through a common control
unit.