OPERATION
3-46
DLV1280 DX
User’s Manual
NOTES: 1) Power level can be set only 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 its maximum.
INTENSITY –
This number is a representation of the current brightness of your lamp,
decreasing 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
correlated value only—9999 may represent up to 1500 lumens, for example.
To use “
Intensity
” 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”.
Keep in mind that once the lamp power has reached its maximum of 500 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 less than its maximum—the lower the intensity, the
longer it can be maintained.
Do not lower the “
Intensity
” so much that the corresponding “
Power
” value reaches
its minimum (350 watts in this model) — the intensity setting will be inaccurate and
cannot be maintained. To match intensity among tiled images, choose an intensity
setting that enables all lamps to operate at less than the maximum number of watts
available.
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.
LAMP HISTORY -
This read-only option lists the 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.
Use
CHANGE LAMP
to
record the serial
number for a newly
installed lamp.
In the Lamp S/N
window, use the
number text entry
keys to record the new
lamp serial number,
and press
again
to accept the change.
See Using Slidebars
and Other Controls if you need help entering the number. Once entered, the new
Figure 3.26. Recording the New Lamp Serial Number
Summary of Contents for DLV1280 DX
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