Christie DS+5K User Manual page 80

Section 3: Operation
3-54 User's Manual
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NOTES: 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. 3) It is recommended that Lamp Limit not exceed the
expected lamp life, otherwise a lamp could become dangerously fragile with overuse.
Set which you want to use in order to control the
LAMP MODE
light output. You can choose to run the lamp as bright as
possible (i.e., always using maximum power—this is the
default upon power up) or you can power the lamp with a
specific wattage appropriate for the installed lamp or you can set a specific intensity
(brightness) to maintain. Although there are exceptions, generally higher light output
or higher power settings can shorten lamp life.
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—judge by eye and set each individual
you want images to be as bright as possible—choose
mind that higher lamp power settings can shorten lamp life.
Lamp modes are described below:
•
The lamp will always burn as brightly as possible, driven by
Max Brightness:
100% of the power level rating for the installed lamp (see Section 6,
Specifications). Keep in mind that the "maximum brightness" for any lamp
gradually diminishes with age—images will become dimmer over time. Its
current output level appears in the "
•
Brightness will remain close to a specified level for as long as
Intensity:
possible. Once you select this option, enter a number representing the intensity
level (brightness) you wish to maintain—the projector will automatically adjust
power as needed to maintain this intensity as closely as possible. Note that the
intensity value is a correlation only and does not represent an actual lumens
level. See "
Intensity
•
The power supplied to the lamp will remain at your specified wattage
Power:
level. Once you select this option, enter the number of watts representing the
power level you wish to maintain. See "
This slide bar and number indicates how
POWER -
many watts are applied to the lamp. You can apply
anywhere from approximately 60-65% of the maximum power intended for the
installed lamp up to 100% of the lamp rating. Set for the number of watts as desired,
keeping in mind that lower power levels produce dimmer images. When in either
or modes, the power level remains constant. Specifying a
Power Max Brightness
maximum power level here is the same as operating in
NOTES: Power level can be set only if the lamp is in P
This value and slide bar represents the
INTENSITY –
current brightness of your lamp, decreasing over time
when you are operating in
you are operating in "
Intensity
setting chosen and cannot be adjusted.
NOTE: The number shown for "intensity" is not the actual lumen output, but rather a
correlated value only—1246 may represent 3500 lumens, for example.
Lamp Power
" option (not in lumens).
Intensity
" below.
Power
mode or at a specific
Max Brightness
" mode this value remains at the original "
setting as necessary. Or if
. Always keep in
Max Brightness
" below.
mode.
Max Brightness
mode.
ower
level. When
Power
Intensity
"