14
Chapter 4. ADJUSTMENT
(3) If the flame relay turns ON, adjust the monitoring point of this
device to avoid effects from the ignition spark and its reflection.
Handling Precautions
•
The following shows various sources other than flame that
may activate this device. Check that the device’s operation is
not affected by these sources under any operating conditions.
Example:
Ultraviolet ray sources Red-hot furnace walls at 1371°C or more
Ignition transformer and welding arc
spark
Gas lasers
Sunlamps
Disinfecting lamps, UV lamps, fluorescent
lamps
Strong flashlights (toward UV sensor)
Gamma and x-ray sources X-ray and gamma diffraction analyzers
Electron microscopes
X-ray cameras
High-voltage vacuum switches
High-voltage capacitors
Radioactive isotopes
Any other sources of UV rays, gamma rays,
or X-rays
Permanent mounting of monitoring pipe
(1) After all adjustments have been done, if the equipment oper-
ates properly with the specified flame voltage output, turn OFF
the power to the equipment, remove the detector, and weld the
monitoring pipe permanently.
(2) Remount the device on the monitoring pipe securely and do all
wiring.
Final check
For reliable burner control, run the equipment through at least one
cycle to check all control operations.
To Next Page
Loading...
Need help?
General
