BASLER SCA640-74GM Industrial camera

When UV flame detection is used, a test is required to verify that UV radiation from the ignition spark is not being detected. To accomplish this, manually shut off both pilot and main fuels. Initiate a normal start-up, and when the PTFI display comes on, observe the display which should read no signal more than 4. If more than 4 is observed, realign the UV scanner, and/or shield the spark from the scanner’s view

With all methods of flame detection

check pilot flame failure response by manually shutting off the pilot fuel and then initiate a normal start-up. With no pilot flame present, the control will deenergize the pilot assembly at the end of the trial for ignition interval, and the control will lockout. Also check to verify that the ignition spark does not cause an electrical interference on infrared or flame rod applications. Main Flame Test Note: This test requires an interrupted pilot (a pilot that shuts off after main flame has been established). 1. Proceed through a normal startup. After the pilot flame is shut off, observe the reading on the display. If the signal reading is low, readjust main flame or realign detector. 2. Check main flame failure protection by manually shutting off the main fuel supply. Within 4 seconds after main flame goes out, the fuel valve will be de-energized. The alarm circuit will be energized following safety lockout.

Common problem

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