Troubleshooting
6-6
Part 1089210A04
E 2010 Nordson Corporation
Bulb Troubleshooting
NOTE: Any bulb that has been touched or contaminated should be cleaned
with alcohol prior to use. Failure to do so may result in premature bulb
failure.
Problem Possible Cause Corrective Action
1. Bulbs have white
fingerprints on quartz
Quartz was touched when bulb
was installed: Finger dirt and oils
on the quartz was burned into the
quartz when the bulb was running
Replace the bulb. The spectral
output has diminished. In the future,
do not touch the quartz portion of the
bulb under any circumstances.
2. New bulb does not
start
Bulb is damaged or power supply
has faulted
Check the power supply for fault
messages. Replace the bulb.
3. Quartz portion of bulb
is rippled
Bulb is overheating Clean all customer supplied filter
material.
Check the lamphead ventilation by
measuring the pressure at the
external pressure port.
Check that proper bulb for lamp is
being used.
4. Quartz has a white or
gray cloudy
appearance
End of life Replace the bulb.
Bulb is overheating If UV output is below acceptable
levels. Check the system cooling
then replace the bulb if necessary.
Check that proper bulb for lamp is
being used.
5. Bulb does not fit
securely in lamphead
Mounting tips on bulb are chipped
or broken
Replace the bulb.
6. The bulb is
overheating
Reflectors not properly installed Refer to the Maintenance and Repair
section for instructions on how to
properly install the reflectors.
Replace the reflector if necessary.
Check that proper bulb for lamp is
being used.
Curing Process Troubleshooting
Problem Possible Cause Corrective Action
System running ok but
material not curing
Reflectors are installed in the
wrong orientation
Check to make sure reflectors are
installed correctly.
Reflectors are badly damaged or
dirty
Clean or replace the reflectors.
RF screen dirty Remove and clean the RF screen.
Lamp not in focus Focus the lamphead.
Incorrect bulb type Replace with the correct bulb type.
Low power level setting Increase the power level on the
power supply.
Material issue Contact the material supplier to verify
the UV spectrum/intensity output.
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