Functional check for a hot surface ignitor element

Details Functional check for a hot surface ignitor element Functional check for a hot surface ignitor element

1984-06-11

1985-12-24

Green, Randall L.

Combustion

Timer, programmer, retarder or condition responsive control

Sensor of electrical condition or temperature of electrical...

431 25, F23N 500

Patent

active

045603430

ABSTRACT:
A hot surface ignitor element is functionally checked for continuity and operating temperature. This check is accomplished by initially energizing the hot surface ignitor element and then switching it as a single ended element into a series circuit with a source of potential. The potential is applied between the hot surface ignitor and an electrode which is connected back to the source of potential. If the hot surface ignitor has come up to ignition temperature a flame rectification signal is simulated.

REFERENCES:
patent: 3871814 (1975-03-01), Das et al.
patent: 4245977 (1981-01-01), Morese
patent: 4323342 (1982-04-01), Sommers, Jr. et al.
patent: 4444551 (1984-04-01), Muellar et al.

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