Product Overview
18
SharpEye™
Single IR Flame Detector User Guide
2.3
Features and Benefits
•
Single IR Channel: Between 4
–
4.6µm.
•
Built-In-Test (BIT): Manual and Automatic (see
•
Heated Window: Prevents effects of ice, snow, and condensation.
•
Electrical Interface:
•
Dry contact relays
•
Communication network RS-485
•
0
–
20mA output
•
HART Protocol: Communication protocol (see
on page 19).
•
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
•
Accessories are approved as part of ATEX and IECEx approval.
2.4
Principles of Operation
This section describes the principles of operation for the 40/40R.
2.4.1
Hydrocarbon Fire Detection
The Single IR flame detector provides early warning of flaming fires involving
organic materials (hydrocarbon fuels and vapors). These fires emit strong IR
radiation in the 4.4-micron spectral band where the CO2 (the main combustion
product of any organic substance) has a unique spectral peak.
This detector contains an advanced infrared sensor and optical filter that provides
maximum sensitivity to the CO2 emission spectral band at 4.4 microns.
The detector is designed to withstand “harsh” environmental conditions; for
example: extreme temperatures, high humidity and vibrations.
