Flame scanning system
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United States of America Patent
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Apr 18, 1989
Grant Date -
N/A
app pub date -
Dec 2, 1983
filing date -
Dec 2, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flame scanning system for monitoring a combustion process by detecting flame emission characteristics in the ultraviolet light spectrum. A metered relative flame intensity signal, flame-off signal, and flame-on signal are provided. A self-diagnostic feature produces a flame marginal signal indicative of substandard flame operation; a tube marginal signal indicative of imminent UV tube failure is also produced. A scanner shutter mechanism includes a check failure feature for detecting UV tube failure. An electronic assisted sighting indicator is also included to assist during on-sight scanner positioning and to provide optimum scanner placement.
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