Maintenance - it 3900e Owner's Manual

Light feedback regulated tungsten halogen source
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Innovative Photonics
General:
This product has been designed, and tested to provide a lifetime of reliable performance. As with all electronic
component assemblies, there is the possibility of failure. If for any reason the unit does not operate as outlined, follow the
procedures below. If problems persist, refer to qualified service personnel.
Routine Maintenance:
The interior of the unit must be clean of dust and debris to ensure proper operation of the unit. Periodic cleaning of the
unit using pressurized air to remove particles that have accumulated is strongly recommended. At this time, the filter
located on the lamp bracket should be cleaned with a glass cleaner to ensure the proper light throughput. If the
environment that the unit is operating in is a severe industrial environment, please contact a factory representative
or visit our website at www.illuminationtech.com for the information regarding our lightsource in an NEMA
enclosure.
Troubleshooting:
Basic troubleshooting of this unit is similar to the troubleshooting of any other electrical or electronic equipment. Check
the most obvious possible cause(s) first. The following troubleshooting guide gives a description of possible solutions for
a unit that is not operating.
If the fan is operating, but the lamp fails to operate, check the following in sequence:
Lamp -
The primary reason for light failure is that the lamp has burned out. Allow the lamp and bracket cool
before opening the lightsource cover. To change the lamp, disconnect the power cord from the unit. Open
the cover by removing the 8 flat head screws that attach the cover to the chassis base. Slide the cover
backward and upward. The cover is connected to the base by a ground wire so you cannot fully remove
the cover. The lamp housing is located in the front of the unit. You will see the lamp in its bracket
towards the front of the unit. Push lever back into the forward position and slide a new lamp into ceramic
socket. Ensure that the lamp is seated into the base of the bracket. Using an incompatible lamp or
failure to properly seat the lamp in bracket may cause erratic behavior or damage to the unit.
Socket -
If the unit still fails to operate, examine lamp socket for damaged or carbonized contacts, for a cracked
ceramic base and frayed or damaged wiring. If any of these conditions are evident, consult the factory for
replacement assembly. Do not attempt to repair this part for risk of fire and electric shock hazard.
OverTemp -
This unit is equipped with an internal thermal cut-off mechanism. It will remove power to the lamp upon
an over temperature situation. Ensure that there is adequate airflow below (intake) and in the rear
(exhaust) of the unit. Once the cause of the over temperature condition is rectified the unit must be reset
by turning the power off. The unit will not operate until it has been reset.
If neither the lamp nor the fan is operational, check the following items in sequence:
Revision 2 09/01/16
Illumination
Technologies, Inc.
Illumination Technologies, Inc.
102 Route 5 West, Building 2, Elbridge, NY 13060 USA
www.illuminationtech.com
Owner's Manual

Maintenance

Page 25 of 28

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