Power frequency magnetic fields are generated by AC current flowing in conductors. The normal 50/60Hz mains power cord is a good example, although currents with other frequencies may be present dependant on the application. Magnetic fields, may interfere with equipment operated in close proximity. Typical EUTs are monitors of all kinds.

The Haefely MAG 100 has a 1m x 1m square, single turn antenna. A current of 120A is needed to feed the coil to produce a field of 100A/m. The Haefely MAG 100 includes a current transformer capable of delivering 120A from a low current source.

Magnetic field strength is defined at the center of a coil with ±3dB variation. Magnetic field is orthogonal to the coil plane. Coil dimensions define the maximum EUT size as being 0.6m x 0.6m x 0.5m. The MAG100 can be used for both vertical and horizontal plane testing, by simply rotating the coil antenna in its mounting on the (optional) stand. The Haefely MAG-100 can only be used for continuous mode testing.

In conjunction with other Haefely EMC Test products, magnetic field testing can be fully or partially automated. The Haefely PLINE 1610 used together with the MAG 100 can provide semi automatic testing from the instrument front panel. A special menu MAG100 is included in the PLINE 1610 software. Voltages can be programmed which correspond to a magnetic field strength at the center of the coil antenna.

Provides a solution for:

• IEC 1000-4-8

• EN61000-4-8

• the relevant part of EN 50082-1, -2

• all EN product standards and many other applications.

Features:

• up to 110A/m field strength

• different coil sizes available

• exactly as defined in IEC 1000-4-8

• sturdy construction

• horizontal and vertical testing possible

• Supplied to ISO 9001

• software control (when used together with Haefely EMC power sources)

• single turn coils

Please contact us for more information on the Haefely MAG 100