AUTOMATION EZ-T10C-F PLC man-machine interface
Proper scanner positioning must assure the following: 1. Reliable pilot flame signal. 2. Reliable main flame signal. 3. A pilot flame too short or in the wrong position to ignite the main flame reliably, must not be detected. 4. Scanner must have an unobstructed view of flame being monitored. 5. Flame being monitored must completely cover the scanner field of view
To avoid nuisance shutdowns
it is important to avoid sighting hot refractory and to keep scanner temperature below 140° F (60°C). 7. When the proper position has been established, drill a hole through the furnace wall and install a 4" to 8" length of threaded l/2" black iron pipe on which to mount the 48PT2 scanner. 8. When satisfactory sighting position has been confirmed by operating tests, the sight tube should be firmly welded in place.To avoid nuisance shutdowns, it is important to avoid sighting hot refractory and to keep scanner temperature low below 140° F (60°C). 10. When the proper position has been established, drill a hole through the furnace wall and install a 4" to 8" length of threaded l/2" black iron pipe on which to mount the 48PT2 scanner. 11. When satisfactory sighting position has been confirmed by operating tests, the sight tube should be firmly welded in place.
Common problem
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