Quanta Flame Series 5002-01 Self Checking UV Scanner

Flame Status LED: The Flame Status LED (FSL) is a dual color LED that acts as a multi-functional indicator. When a flame is detected the FSL will illuminate with a red color. This light will vary in intensity proportional to the level of flame signal (flame strength) detected.  Every 10 seconds the self-checking mechanism will interrupt the light coming from the flame. This is done to verify that the UV sensing element is still functioning properly. When this check is being performed the FSL will momentarily turn to a yellow color (when flame present) or green color (when flame is not present). Should the UV sensing element fail to function, the scanner will lockout all the outputs to indicate the failure and the FSL will remain green without blinking for one minute. After one minute the control will automatically reset itself. The scanner’s microcomputer will then continue to check the sensing element every ten seconds. Should the sensing tube be in a permanent “runaway “condition then the scanner will immediately lockout again for another period of one minute.