OPERATION
3-30
DLV 1280 User's Manual
•
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 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 350-500 watts as desired, keeping in mind that lower power
levels produce a dimmer image while extending lamp life.
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 it reaches 500W.
INTENSITY -
The number shown here usually varies with the brightness of your
lamp. However, if you are currently operating in “
Intensity
” mode this value
indicates the original “
Intensity
” setting chosen.
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 to within 10% of the setting.
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 under 500 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 minimum of 350 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 500 watts.
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 will not exceed the output of Max Brt mode.
LAMP HISTORY -
This option lists the 14 to 15 most recent lamps installed and
recorded in the projector, with the current lamp listed last.