Mirage 2000 User Manual page 85

OPERATION
3-48
Mirage 22000/4000/6000User's Manual
Specifying the maximum power level in
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 as closely as possible, until power
reaches its maximum. 3) After approximately 500 hours of use, all models using a
700W lamp require lamp power of 550W or higher. If set too low, the aging lamp can
cause a projector shutdown. Upon your next power up, lamp power will
automatically maximize—a message box relates "Unexpected lamp off. Power set to
max.". In these models, use 550W or more to ensure normal operation and prevent
similar shutdowns, or install a new lamp in order to reliably use lower lamp power
levels.
INTENSITY –
This number is a representation of the current brightness of your lamp,
decreasing over time when you are operating at
level. However, when you are operating in "
Intensity
original " " setting chosen.
NOTE: The number shown for "intensity" is not the actual lumen output, but rather a
correlated value only—9999 may represent up to 6000 lumens, for example.
Intensity
To use " " mode, judge by eye and set the level as desired for your
application, remembering 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 intensity as closely as possible. This is called
"Brightness Tracking" or "LiteLoc".
Keep in mind that once the lamp power has reached its maximum of 700 or 1200
Power
watts (see " ", above), this tracking is no longer possible. At this point, the lamp
will gradually begin to dim as usual, even though your original "
still appear in the menu. To resume accurate tracking, reduce the intensity setting so
Power
that the resulting "
the longer it can be maintained.
Intensity
Do not lower the "
its minimum (350 watts in Mirage 2000, 450 watts in Mirage 4000, 800 watts in
Mirage 6000)—the intensity setting will be inaccurate and cannot be maintained.
Note also that lamp power of 550W (or higher) is required for any 700W lamp
having more than 500 hours on it. Make sure your "
to keep the corresponding lamp power at 550W or higher. For best results in
achieving fairly uniform intensity amongst tiled images, choose an "
that enables all lamps to operate at less than the maximum number of watts available
in your projector but high enough to keep the corresponding lamp power above its
Power
minimum. See " ", above.
NOTES: 1) Lamps become more stable over time, thus a specific intensity is more
easily maintained 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.
Power
mode is the same as operating in
Max Brightness
Intensity
" value is less than its maximum—the lower the intensity,
" so much that the corresponding "
or at a specific
" mode, this value remains at the
Intensity
" value will
Power
" value reaches
Intensity
" setting is high enough
Intensity
Max
Power
" setting