Digital Projection lightning series, User Manual

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E—6
Fault Finding and Maintenance
MAINTENANCE
LBV00056; Revision C - 01/03/03
Conserving Lamp Life
As with all Xenon arc lamps, the Digital Projection lamp requires a very high strike
voltage (>30kV) to initiate the arc. This high voltage strike causes minute amounts
of material to be lost from the electrode tips. It has been identified that lamps with a
higher number of strikes can fail earlier.
To conserve lamp life, it is recommended that the user reduces the amount of strikes
as much as possible. For example, if the projector is not required for 10 minutes
during a presentation it would be beneficial to keep the lamp running (in Picture
Mute if necessary) rather than turning the lamp off and then back on again.
Recent increases in the projector light output mean that the image may be brighter
than required for a given application. In such instances, using the projector on
‘Lamp Low’ can still give an acceptable performance with the added benefit of
increasing the life of your lamp.
Handling and Working with Xenon Lamps
Xenon lamps can explode without warning because they contain gas under high
pressure and are made of fused quartz which is brittle, like glass. Keep replacement
lamps in their protective packaging until required and do not subject to shock,
impact or excessive force. Leave cooling fans running for at least 10 minutes after
switching off the lamp to allow the module to cool before handling it. The normal
running temperature of the lamp module is over 1200°C.
Xenon lamps produce high intensity light and ultra-violet radiation. NEVER look
directly into a lighted lamp or at the light emanating from the lens or lamp mod-
ule. To do so may cause severe eye damage. Do not touch window area and never
point the output window of the module towards any person or oneself.
Do not allow anyone to be exposed to a Xenon lamp except when wearing the pre-
scribed personal protective equipment detailed opposite.