2.1 Power supplyThe Equipment under Test (EUT) is connected to a stabilized electronic power supply.The quality of the voltage have to be checked during the measurement (according to IEC 61000-3-2 Annex A.2 supply source), which is done automatically with the OSRAM harmonic measurement software.2.2 Power analyser For measuring the harmonic current emissions the equipment under Test (EUT) is connected to the power analyser.2.3 Ambient conditionsIEC 61000-3-2 Annex C.5.1 requires that tests are carried out at an ambient temperature between 20 °C and 27 °C. During measurement the temperature shall not vary by more than 1 K. The temperature is checked before the measurement and recorded in the test report. The air humidity and air pressure are not relevant.2.4 Measurement equipmentThe power source complies with the requirements of IEC 61000-3-2 Annex A.The power analyser complies with the requirements of IEC 61000-3-2 Annex B.