User guide

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.