Spectrex Series 300 Open-Path Gas Detection System - Manual (Page 10)

Spectrex Inc. - SafEye TM 300 Gas Detector Manual – TM 794100, Rev. D, May 2004
2
2. Technical Description
2.1 Features
•
Operating distance from 2ft (0.6m) up to 49 ft (15m)
•
Simultaneous detection of C
1
-C
8
flammable gases
•
High Sensitivity and fast response to Hydrocarbon gases
•
Continuous operation in extreme and harsh environmental
Conditions
•
Withstands extreme vibration conditions
•
Interfaces with most commonly used control panels
•
Standard 4-20mA and Dry Contact Relays Outputs
•
RS-485 Output for PC Communication Network for a maximum of 64
systems
•
Simple one person installation, alignment, and calibration
•
ATEX Approved - EX II 2 G, EExd IIB + H
2
T5; EExde IIB + H
2
T5
•
UL Approved – E209870 Class I, Group C and D
•
Programmable configuration
2.2 Applications
The SafEye system may be used to monitor flammable gas concentration in
various applications, such as fence-line monitoring and area monitoring in
processing facilities, air-intakes and duct installations in various industries
including:
•
Petrochemical, pharmaceutical and other chemical storage and production
areas.
•
Flammable and toxic chemical storage sites and hazardous waste disposal
areas.
•
Refineries, oil platforms, pipelines, refueling stations and fuel storage
facilities.
•
Hazardous loading docks, transportation depots and shipping warehouses
•
Engine rooms
•
Compressor and pumping stations
•
Hazardous enclosures and test cells
•
LNG-LPG Systems
•
Offshore Floating Production Storage and Shipping vessels (FPSO), and
fixed oil rigs.
2.3 Principle of Operation
The SafEye system detects gases through a dual spectral range monitoring,
analyzing the absorption of radiation caused by gases in the atmosphere and
comparing it (ratio) to background atmospheric absorption.