Power Measurement Method. All power measurements are to be made in accordance with IEC 62301 with the following exceptions: To determine the voltage/frequency combinations to be used during testing, see the Test Conditions and Equip- ment for ENERGY STAR Imaging Equipment Products in Section VII.D.4. The harmonics requirement used during testing is that specified in the IE Test Conditions document, which is more stringent than that required by IEC 62301. The accuracy requirement for this OM test procedure is 2 % for all measurements except for Ready power. The accuracy requirement for measuring Ready power is 5 %, as provided in the Idocument. Thetions document. The 2 % figure is consistent with IEC 62301, although the IEC standard expresses it as a confidence level. For products designed to operate using batteries when not connected to the mains, the battery shall be left in place for the test; however, the measurement should not reflect active battery charging beyond maintenance charging (i.e., the battery should be fully charged before beginning the test).
Power Measurement Method. All power measurements are to be made in accordance with IEC 62301 with the following exceptions: To determine the voltage/frequency combinations to be used during testing, see the Test Conditions and Equipment for ENERGY STAR Imaging Equipment Products in section D.4. The harmonics requirement used during testing is more stringent than that required by IEC 62301. The accuracy requirement for this OM test procedure is 2 % for all measurements except for Ready power. The accuracy requirement for measuring Ready power is 5 %, as provided in section D.4. The 2 % figure is consistent with IEC 62301, although the IEC standard expresses it as a confidence level. For products designed to operate using batteries when not connected to the mains, the battery is to be left in place for the test; however, the measurement should not reflect active battery charging beyond maintenance charging (i.e. the battery should be fully charged before beginning the test). Products with external power supplies are to be tested with the product connected to the external power supply. Products powered by a standard low voltage dc supply (e.g. USB, USB PlusPower, IEEE 1394, and Power Over Ethernet) must utilise a suitable AC-powered source for the DC power. This AC-powered source's energy consumption is to be measured and reported for the imaging equipment product under test. For imaging equipment powered by USB, a powered hub serving only the imaging equipment being tested is to be used. For imaging equipment powered by Power Over Ethernet or USB PlusPower, it is acceptable to measure the power distribution device with and without the imaging product connected, and use this difference as the imaging product's consumption. The manufacturer should confirm that this reasonably reflects the unit's DC consumption plus some allowance for power supply and distribution inefficiency.
