Lamp information, Calculation of lamp hour, Warning message – BenQ MP511 User Manual
Page 50: Calculation of lamp hour warning message
Maintenance
50
Lamp information
Calculation of lamp hour
When the projector is in operation, the duration (in hours) of lamp usage is automatically
calculated by the built-in timer. The method of calculating the equivalent lamp hour is as
follows:
Total (equivalent) lamp hour
= 1 (hours used in Economic mode) + 3/2 (hours used in normal mode)
"Lamp mode (Normal)" on page 47
for more information on Economic mode.
The lamp hour in Economic mode is calculated as 2/3 of that in normal mode. That is, using
the projector in Economic mode helps to extend the lamp hour by 1/2.
Warning message
When the Lamp indicator lights up red or a message appears suggesting it is time to replace
the lamp, please install a new lamp or consult your dealer. An old lamp may cause a
malfunction in the projector and in some instances the lamp may explode.
The Lamp indicator light and Temperature warning light will light up if the lamp becomes too
hot. Turn the power off and let the projector cool for 45 minutes. If the Lamp or Temp indicator
still lights up after turning the power back on, please contact your dealer. See
for details.
The following Lamp warning displays will remind you to change the lamp.
Message
Status
The lamp has been in operation for 2000 hours.
Install a new lamp for optimal performance. If the
projector is normally run with "Economic Mode"
selected (See
"Lamp mode (Normal)" on page 47
),
you may continue to operate the projector until the
2950 hour lamp warning appears.
The lamp has been in operation for 2950 hours. A
new lamp should be fitted to avoid the
inconvenience when the projector runs out of lamp
time.
The lamp has been in operation for 3000 hours.
It is strongly recommended that you replace the
lamp at this age. The lamp is a consumable item.
The lamp brightness diminishes with use. This is
normal lamp behavior. You can replace the lamp
whenever you notice that the brightness level has
significantly diminished. If the lamp is not
replaced beforehand, it must be replaced after 3000
hours usage.
OK
Order Replacement Lamp
Lamp > 2000 Hours
Notice
OK
Replace Lamp Soon
Lamp > 2950 Hours
Notice
OK
Replace Lamp Now
Lamp > 3000 Hours
Lamp usage time exceeded
Notice