Spectrex Series 300 Open-Path Gas Detection System - Manual (Page 9)

Spectrex Inc. - SafEye TM 300 Gas Detector Manual – TM 794100, Rev. D, May 2004
1
1. Scope
1.1 Product Overview
The SafEye 300 Series is an IR Open-Path Gas Detector that detects ambient
combustible gases at LEL.m concentrations over a path length from 2ft (0.6m) up
to 49 ft. (15 m), even in harsh environments where dust, fog, rain, snow or
vibration can cause a high reduction of signal.
The shorter path lengths are usually associate with application in ducts/air
intakes to provide fast response to ingress of flammable gases.
Due to its unique combination of triple optics and dual-spectrum reference
sensor, the SafEye can maintain operation in up to 90% signal obscuration and
±2 degree of misalignment.
SafEye has a fast response detection time of no more than 2-10 seconds. This
feature enables an adequate time to take appropriate safety measures.
The SafEye Source and Detector unit enclosures are ATEX certified EExd
flameproof or EExde (with additional separate EExe terminal box connected to
the unit.)
This manual consists of a full description of the Detector and its features. It
contains instructions on the installation, operation and maintenance. The system
is intended to be operated by qualified personnel.
1.2 Document Overview
This manual describes the Detector and its features and provides instructions on
the installation, operation and maintenance.
This manual is divided into separate sections
as follows:
Section 1.
Scope - a general introduction and overview of the product and the
Manual, with a brief description of its content.
Section 2. Technical Description - the Detector’s theory of operation.
Section 3. Operation Mode - the Detector’s operation modes, user interface and
indications.
Section 4. Technical Specifications - the Detector’s electrical, mechanical and
environmental specifications.
Section 5. Installation Instructions, including wiring and mode setting.
Section 6. Operating Instructions and power-up procedures.
Section 7. Maintenance Instructions and support procedures.
Section 8. Troubleshooting
Appendix A. Wiring Selection Tables for electrical wire selection according
to installation configuration.
Appendix B. Wiring option Configurations - wiring diagrams for
installation.
Appendix C. Detector and Source Outline Drawing