NEC P474U, Руководство пользователя

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3. Convenient Features
NOTE:
• The [ECO MODE] can be changed by using the menu.
Select [SETUP]
→
[GENERAL]
→
[ECO MODE].
• The lamp life remaining and lamp hours used can be checked in [USAGE TIME]. Select [INFO.]
→
[USAGE TIME].
• The projector is always in [NORMAL] for 90 seconds after the lamp is turned on. The lamp condition will not be affected even when
[ECO MODE] is changed.
• After a lapse of 1 minute from when the projector displays no-signal guidance, a blue, black or logo screen, [ECO MODE] will automatically
switch to [ECO]. The projector will return to its original setting once a signal is accepted.
• If the projector is overheated in [OFF] mode, there may be a case where the [ECO MODE] automatically changes to [NORMAL] mode to
protect the projector. When the projector is in [NORMAL] mode, the picture brightness decreases. When the projector comes back to normal
temperature, the [ECO MODE] returns to its original setting.
Thermometer symbol [ ] indicates the [ECO MODE] is automatically set to [NORMAL] mode because the internal temperature is too high.
• Immediately after [ECO MODE] is changed from [ECO] to one of [OFF], [AUTO ECO], or [NORMAL], the lamp brightness may decrease
temporarily. This is not a malfunction.
Checking Energy-Saving Effect [CARBON METER]
This feature will show energy-saving effect in terms of CO
2
emission reduction (kg) when the projector’s [ECO MODE]
is set to [AUTO ECO], [NORMAL], or [ECO]. This feature is called as [CARBON METER].
There are two messages: [TOTAL CARBON SAVINGS] and [CARBON SAVINGS-SESSION]. The [TOTAL CARBON
SAVINGS] message shows the total amount of CO
2
emission reduction from the time of shipment up to now. You
can check the information on [USAGE TIME] from [INFO.] of the menu. (
→
page 80 )
The [CARBON SAVINGS-SESSION] message shows the amount of CO
2
emission reduction between the time of
changing to ECO MODE immediately after the time of power-on and the time of power-off. The [CARBON SAVINGS-
SESSION] message will be displayed in the [POWER OFF/ ARE YOU SURE?] message at the time of power-off.
TIP:
• The formula as shown below is used to calculate the amount of CO
2
emission reduction.
Amount of CO
2
emission reduction = (Power consumption in OFF for ECO MODE − Power consumption in AUTO ECO/NORMAL/ECO for
ECO MODE) × CO
2
conversion factor.* When the image is turned off with the AV-MUTE button, the amount of CO
2
emmission reduction
will also increase.
* Calculation for amount of CO
2
emission reduction is based on an OECD publication “CO
2
Emissions from Fuel Combustion, 2008 Edition”.
• The [TOTAL CARBON SAVINGS] is calculated based on savings recorded in 15 minutes intervals.
• This formula will not apply to the power consumption which is not affected by whether [ECO MODE] is turned on or off.