ESD generators are calibrated according to the standard IEC/EN 61000-4-2 Ed 2.0. The Haefely PET 4000 ESD Current Target Calibration Set allows the user to take measurements conforming to the new 4GHz requirement in accordance with IEC 61000-4-2 Ed. 2.0.
Measurement of individual impulse parameters is performed using a special coaxial current shunt. This has a nominal impedance of 2 Ohms. Because ESD events can be generated as high as 120A, attenuators are required to reduce the impulse-voltage level so it can be displayed on commercial oscilloscopes. An oscilloscope with minimum 2GHz bandwidth is required to properly display the ESD impulse.