NEC PE455UL - Page 58

3. Convenient Features
38
Checking Energy-Saving Effect [CARBON METER]
This feature will show energy-saving eect in terms of CO
2
emission reduction (kg) when the projec-
tor’s [ECO MODE] is set to [ECO] or [LONG LIFE]. 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-o. The [CARBON SAVINGS-SESSION] message will be displayed in the [POWER OFF / ARE
YOU SURE ?] message at the time of power-o.
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[ECO]/[LONGLIFE]for
[ECOMODE])×CO
2
conversionfactor.
* 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aectedbywhether[ECOMODE]isturnedonoro.