Mounting space ●
Keep a sufficient space to allow easy maintenance and inspection, and service work.
Monitoring pipe,
1" or more
(Use 2" to 3" pipe.)
Reducing socket
AUD300C
Connection
nipple (1")
Weld this
part
Burner
Plate
Tapered monitoring hole
*
* If the air purging is needed, tees are used to supply the air.
Furnace wall
Air
*
Tees
Handling Precautions
Mount this unit so that its monitoring direction intersects the flame axis •
at an as small angle as possible. This ensures a wide intersection area of
the monitoring area between the flame and this unit. Thus, the detection
amount of ultraviolet ray radiation becomes large.
Flame surface area monitored is small.
Unburnt fuel
Flame surface area monitored is large and
much ultraviolet radiation is detected.
Burner
Good sighting position
(low angle sighting)
Poor sighting position
Temporary welding for positioning of monitoring pipe ●
(1) Prepare the monitoring pipe and make the mounting hole.
Make the mounting hole for the monitoring pipe at the selected monitoring pipe
mounting position.
Perform the screw threading of one end of the monitoring pipe and cut the
monitoring pipe to a desired length so that its length is as short as possible.
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