Description
IEC 60601-1-2 ED. 4.1 / IEC 61000-4-39
New requirement, immunity to proximity magnetic fields based on IEC 61000-4-39
- IEC / EN 61000-4-6
- IEC 61326-3-2
- NAMUR
- MIL-STD-461 / DO-160
- IEC 60601-1-2 Ed.4.1 to IEC 61000-4-39 (Close Proximity Magnetic immunity) see below
- Please check out CDG 7000 page for the general specification of the generator
The IEC 60601-1-2 standard is the international standard for testing medical equipment to EMC. The latest update adds a new test as more transmitter products are present in homes, offices (locations where medical equipment may be used), and hospitals. Three frequencies that are in use are: 30 kHz, 134.2 kHz, and 13.56 MHz. The standard IEC 61000-4-39 for testing fields in close proximity is referenced for this testing. With our IEC 60601-1-2 setup these test fields can be produced.
The magnetic loops are specified in IEC 61000-4-39 and are readily available. However, producing a field through the loops might not be straightforward. The loop impedance changes over its frequency range and the amplifier being used will not match this impedance. The result would be a much higher power requirement. In this case, we are not covering a frequency range but individual frequency points. This allows a matching network to be created to match the loop to the amplifier’s impedance.
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