Spectrex 20/20F - Fast UV/IR Flame Detector - Manual (Page 7)

Spectrex Inc. - SharpEye TM UV/IR (F) Flame Detector Manual – TM756100 Rev A, July 2005
1
1. Scope
1.1 Product Overview
The Flame detector Model 20/20F, with its ultra fast response, is designed to
meet the two most important requirements for survivability: Fast Response Time
(less than 5 milliseconds) and high reliability (immune to false alarms).
The 20/20-F is sensitive to radiation in two frequency ranges of the
electromagnetic spectrum: the infrared and the ultraviolet. Only simultaneous
sensing off these two radiation ranges will result in a detector output pulse. The
simultaneous occurrence of radiation in these two ranges is a characteristic of
fire only, thus greatly reducing the probability of a false alarm.
The 20/20-F has a continuously self-adjusting, pre-set level of activation for
detection of fire or vapor explosion. Its level of sensitivity is maintained over a
wide temperature range, and is independent of background radiation.
1.2 Document Overview
This manual describes the detector and its features. It describes instructions on
the installation, operation and maintenance.
This manual is divided into several parts. Each part is contained in a separate
chapter as follows:
Chapter 1.
Scope
. A general introduction and overview of the product and the
Manual with a brief description of its content.
Chapter 2.
Technical Description
- the detector’s theory of operation.
Chapter 3. Performance - the detector features and capabilities.
Chapter 4.
Operation
modes, user interface and indications.
Chapter 5. Technical Specifications Detector’s electrical, mechanical and
environmental specifications.
Chapter 6. Installation Instructions including wiring and mode setting.
Chapter 7.
Operating Instructions and power-up procedures.
Chapter 8. Maintenance Instructions and support procedures.
Appendix A. Wiring Selection Tables for electrical wire selection according to
installation configuration.
Appendix B. Typical Wiring Configurations provides wiring diagrams for
installation.
Appendix C. Mounting the “EExde approved” version
Appendix D. Long Range UV/IR Fire Simulator