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OPERATION
LAMP HOURS shows the number of hours logged on the current lamp. Whenever you record
a new lamp serial number, this value automatically resets to "0", where it begins to log time for
the new lamp. NOTE: Read-only. This information also appears in the Status menu.
LAMP S/N is the serial number recorded for the current lamp. When you install a new lamp
and enter its serial number, the number will appear here in the Lamp menu. NOTE: Read-only.
Enter a checkmark for LAMP MESSAGE if you want to enable a warning message upon
power-up that the lamp has reached the specified lamp limit and should be replaced. Delete the
checkmark if you do not want to see this warning-instead, when your lamp expires, only the
status information on the back of the projector will provide the warning to replace the lamp.
NOTES: 1) It is recommended that the Lamp Message checkbox remain enabled. 2) When a
lamp warning message appears, press to temporarily cancel the message. The message will
continue to appear upon power-up until you install a new lamp.
Set LAMP LIMIT to the number of hours you expect to log on the current lamp before replac-
ing it. The recommended limit is 1000 hours.
NOTE: 1) If you change modes over the life of a lamp, the lamp limit you originally expected
may no longer be possible. 2) Turning the lamp on and off reduces lamp life significantly, as do
other factors.
Set which LAMP MODE you want to use in order to control the light
output. Although there are exceptions, in most lamps, the higher the
light output or power setting, the shorter the life span of the lamp.
Use the lamp mode that best suits your brightness needs. For example, in
a tiled application you may want to precisely match brightness levels between adjacent images-
choose Intensity for each projector, then judge by eye and set each individual intensity setting
as necessary (see "Intensity", below). Or you may simply always need as much brightness as
possible-choose Max Brightness.
Lamp modes are described below:
!
Max Brightness: The lamp will always burn as brightly as possible, driven by maximum
power of 700W. Keep in mind that the "maximum brightness" for any lamp gradually
diminishes with age-the image will become dimmer over time. Its current output level
appears in the "Intensity" option (not in lumens).
!
Intensity: Brightness will remain at a specified level for as long as possible. Once you
select this option, enter a number representing the intensity level (brightness) you wish to
maintain. Note this value is a correlation only (0-9999), not actual lumen levels possible
(0-3000, e.g.). See "Intensity" below.
!
Power: The power supplied to the lamp will remain at a desired watt level throughout the
life of the lamp. Once you select this option, enter the number of watts representing the
3-37
Figure 3.24
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