IEC 61000-4-8 details the test and measurement techniques required for immunity to conducted disturbance tests performed as part of EMC testing. Electronic products are often subjected to magnetic fields at AC mains frequencies. These fields are frequently produced in the vicinity of power transformers and can cause problems with video displays, Hall effect sensors, and other electronic products having a sensitivity to magnetic fields.
Electronic Products are tested for immunity to power-frequency magnetic fields to ensure their continued reliable operation when placed in service. The European Union's EMC Directive currently mandates power frequency magnetic field testing for certain categories of equipment as a condition for obtaining the CE Mark before shipping products to member states of the European Union.
Haefely MAG 100
Magnetic Field Generator