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power level you wish to maintain. See "Power" below.
POWER - The number shown here indicates how many watts are applied to the lamp. Set from
450-700 watts as desired, keeping in mind that lower power levels produce dimmer images.
When in "Power" or Max Brightness modes, the power level remains constant. When in
"Intensity" mode, the power level will change as necessary. Specifying a power level of 700 is
the same as operating in Max Brightness mode.
NOTES: 1) Power level can be set only if the lamp is in "power" mode. 2) If you are in
"Intensity" mode, the power level value will automatically increase over time as necessary to
maintain the desired brightness, until power reaches 700W.
INTENSITY - This number is a representation of the current brightness of your lamp, decreas-
ing over time when you are operating at Max Brightness or at a specific Power level.
However, when you are operating in "Intensity" mode, this value remains at the original
"Intensity" setting chosen.
NOTE: The number shown for "intensity" is not the actual lumen output, but rather a correlat-
ed value only-9999 may represent 3000 lumens, for example.
To use "Intensity" mode, judge by eye and set the level as desired for your application, remem-
bering that higher settings can significantly shorten lamp life. Over time, the projector will
automatically increase the power supplied to the lamp as needed to maintain the chosen intensi-
ty to within 5% of the setting. This is called "brightness tracking".
Keep in mind that once the lamp power has reached its maximum of 700 watts (see "Power",
above), this tracking is no longer possible. At this point, the lamp will gradually begin to dim as
usual, even though your original "Intensity" value will still appear in the menu. To resume
accurate tracking, reduce the intensity setting so that the resulting "Power" value is under 700
watts - the lower the intensity, the longer it can be maintained.
Do not lower the "Intensity" so much that the corresponding "Power" value reaches its mini-
mum of 450 watts - the intensity setting will be inaccurate and cannot be maintained. For
matching intensity over in tiled images, choose an intensity setting that enables all lamps to
operate at less than 700 watts.
NOTES: 1) Lamps become more stable over time, thus a specific intensity is more easily main-
tained as the lamp ages 2) Intensity can be set only if the lamp is in "Intensity" mode 3)
Intensity cannot exceed the output of Max Brightness mode.
LAMP HISTORY - This read-only option lists the most lamps most recently
installed and recorded in the projector. Lamp History automatically updates
whenever you record a new lamp serial number-the new lamp is added to the
bottom of the list.
3-38
OPERATION
Lamp History
S/N
Hours
1234 1999
5678 27
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