
MFS 100 
Power Frequency and pulse magnetic field test system 
The MFS 100 test system can be used to test 
power frequency magnetic fields according to 
IEC/EN 61000-4-8 and pulse magnetic field 
according to IEC/EN 61000-4-9. 
The MFS 100 is an accessory to either the 
PSURGE 4010, PSURGE 8000 with PIM 100 surge 
generators, or the ECOMPACT 4. It enables 
magnetic field testing up to 1200 A/m.
 
Features 
 
Up to 1200A/m field strength for pulse 
magnetic field.
 
Up to 100A/m field strength for  
frequency magnetic field.
 
Standard coil designed for major 
application as defined in the IEC document.
 
Sturdy construction.
 
Horizontal and vertical testing possible.
 
Supplied to ISO 9001.
 
Benefits 
MFS 100 1mx1m antenna mounted on support 
stand (above) shown with the MFS 100 control 
unit 
8x20 Surge
Tester
EUT setup 
EUT
Compact design to fulfill both the IEC/EN 
610004-8 and IEC 61000 4-9 standards. 
Single turn coil. 
Only one support stand is needed for all 
magnetic field tests in accordance with 
IEC 61000-4-8/9.
 
Applications 
 IEC 61000-4-8 
 EN 61000-4-8 
 IEC 61000-4-9 
 EN 61000-4-9 

 
Description 
MFS 100 has a 1m x 1m square, single turn antenna. 
A current of 1150A is needed to feed the coil to 
produce a field of 1000A/m. 
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 MFS100 can be used for both vertical and 
horizontal plane testing, by simply rotating the coil 
antenna in its mounting on the stand.
 
Technical Specifications 
The MFS100 is designed for EUTs up to 0.5m high. 
To test larger EUTs, the antenna coil can be adjusted 
in height on the mounting stand. 
The MFS100 construction makes it easy to adjust the 
antenna height. 
The MFS 100 antenna can also be rotated through 90° 
and placed alongside large EUTs to test all four faces 
of the test object.
Power  230V 50/60Hz 460VA   Maximum EUT size  0.6 x 0.6 x 0.5m 
50/60Hz Coil Current 
0 to 16A at “MIN” Range 
 Coil Factor  1.15 
0 to 124A at “MAX” Range 
50/60Hz Magnetic 
Field 
8/20us Coil Current  0 to 1200A 
8/20us Magnetic 
0 to 14A/m at “MIN” Range 
0 to 108 A/m at “Max” Range 
 8/20us Magnetic 
Field duration 
0 to 1043 A/m      
16us ±30% 
Field 
8/20us Magnetic 
6.4us ±30%      
Field Rise time 
Weights and Dimensions (W x H x D, net weight) 
MFS 100  23 x 25 x 40 cm , 19kg 
Coil          100 x 100 cm ,   12kg 
Ordering Information 
MFS 100  Part number: 249102 
Headquarters 
Haefely Test AG 
Lehenmattstrasse 353 
CH-4052, Basel  
Switzerland 
 + 41 61 373 41 11 
 + 41 61 373 45 99 
 
EMC-sales@haefely.com 
Haefely has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice.  MFS 100_2008-04-24 
Locate your local  
sales representative at 
www.haefelyEMC.com 
North American Office 
Hipotronics Inc. 
Haefely EMC Division
1650 Route 22
Brewster, NY 10509
 ++1 845 279 3644 x262
 ++1 845 279 2467 
 EMCsales@hubbell-haefely.com