Spectrex 40/40I Triple IR (IR3) Flame Detector - Manual (Page 16)

SharpEye TM IR3 Flame Detector User Guide
4 Features and Benefits
1.3 Features and Benefits
 Detection Range: Up to 215 ft. (65m) for a 1 ft 2 (0.1m 2 ) n-heptane fire.
 Ultra High Immunity to False Alarms: See Table 4 on page 11.
 Advanced Digital Processing of the Dynamic Characteristics of Fire:
Flickering, threshold correlation and ratio.
 Multi IR Channels: Between 2-5 microns.
 Field Programmable Sensitivity: Four ranges to avoid zone crossover.
 Built In Test (BIT): Manual and Automatic (see Built-In-Test (BIT) on
page 16).
 Heated Window: Prevents effects of icing, snow, condensation.
 Electrical Interface:
 Dry contact relays
 Communication network RS-485
 0-20mA output
 HART Protocol: Communication protocol (see HART Protocol on page 5).
 Exde: Integral junction box for easy wiring.
 SIL-2: TÜV approved.
 Hazardous Area Certification: ATEX, IECEx, FM, CSA.
 Functionality Approval:
 EN54-10 approved by VdS
 FM approved per FM3260
1.4 Principles of Operation
This section describes the 40/40I principles of operation and includes:
 Hydrocarbon Fire Detection, page 4
 Heated Optics, page 5
 HART Protocol, page 5
 RS-485 Modbus, page 6
 Product Certification, page 6
1.4.1 Hydrocarbon Fire Detection
The SharpEye 40/40I detector is designed to detect flames in which carbon
dioxide (CO
2
) is produced in the combustion process. These include all
hydrocarbon flames, as well as other types of flames and burning materials
such as wood or alcohol.