BenQ MP510 User's Manual - Page 41

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) See "Economic Mode" on page 38 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 life 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. For more detailed information on projector warnings, please refer to "Indicators" on page 45. 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. The following Lamp warning displays will remind you to change the lamp. Message NOTICE: Order replacement lamp Lamp > 2000 Hours Projector will stop at 3000 hours NOTICE: Replace lamp soon Lamp > 2950 Hours Projector will stop at 3000 hours Status Total (equivalent) lamp hour has reached 2000 hours. Install a new lamp for optimal performance. If the projector is normally run with "Economic Mode" selected (See "Economic Mode" on page 38), you may continue to operate the projector until the 2950 hour lamp warning appears. Total (equivalent) lamp hour has reached 2950 hour. A new lamp should be fitted to avoid the inconvenience when the projector runs out of lamp time. NOTICE: Replace lamp now Lamp > 3000 Hours Lamp-usage time exceeded Total (equivalent) lamp hour has reached 3000 hours. This message will flash in the center of the screen for about 30 seconds together with the Lamp indicator lighting up red for 40 seconds. It is strongly recommended that you replace the lamp at this age. The lamp is a consumable item. With the usage time increase, the lamp brightness diminished gradually. 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. Maintenance 41