7. Advanced
When switching from the dual mode to the single mode the lamp with the longest runtime is switched off.
If the runtimes are equal (if the projector has always been operated in dual mode) then lamp1 is switched out.
When switching to single mode, returning to the dual mode will not be possible in the first 60 seconds, Dual
in the menu is greyed out and LED1 is flickering, thereby preventing hot restrike which may damage the lamp.
7.7.3 CLO
Overview
• The CLO menu
• CLO mode
• CLO Targets
•LinkedCLO
7.7.3.1 The CLO menu
What is CLO?
Constant Light Output allows to force a constant light output (set in the CLO Targets ... menu) of the projector over a certain period.
This will eliminate uncontrolled light output drop caused by natural aging of the lamp. The light output is checked every 30 seconds
and if the target is not met, the CCD is adjusted.
If the CLO is disabled, there is no more automatic dimmer adjustment depending of the light output. In this mode, the light output
settings can be done manually.
In the illustration below, a normal light output curve is shown over the first 1000 hours, image 7-115. By using CLO and setting the
target to 60% of the maximum light output, one will be able to operate during approximately 500 hours with a constant light output,
image 7-116.
100
20
40
60
80
200 400 600 800 1000
Relative Light Output (%)
Runtime (hrs)
Image 7-115
R59770324 SIM 5W 22/12/2011 113
Downloaded From projector-manual.com Barco Manuals
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