Gigahertz Solutions ME 3851A Mode D'emploi page 11

three dimensional axes XYZ, and the vectorial addition
sults.
However, for the identification of the sources of pollution – in fact the
essential measurement task – an earthed measurement would be
more adequate, which is why this procedure is especially recom-
mended for the private use. Our NFA1000, is specifically designed for
a simultaneous three-dimensional measurement task. For more infor-
mation please see our website.
Measurement Instructions
Magnetic Fields:
Turn on the field meter and set the switch "Field Type" to "M" for AC
magnetic field. Set the filter to "50 Hz". The field meter does not need
to be grounded, persons present do not affect the testing results, and
there is no need to hold the meter close to your body. Please note:
 Quick movements induce short peaks of pseudo readings that
have nothing to do with actual fields (due to the earth's static
magnetic field)
 Let the display settle for 2 seconds after any movements.
Proceed as follows:
- Move slowly through the room to be measured with special regard
to the sleeping or working place.
- There is no need to turn the meter into different directions like for
the E-field, instead check all three orientations from time to time as
shown in the following pictures.
- In practice it is usually sufficient to "rotate" the meter out of your
wrist until you have the position/direction of the highest reading
(see pictures in the following). In this direction the meter shows the
so-called "resulting" field strength resp. magnetic flux density.
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Resulting total field strength = square root (x² + y² + z²). A simplified calculation is
possible by finding out the position / direction of highest reading as described in
the next chapter for the magnetic field. The above formula is also valid for the cal-
culation of the "3D" magnetic field.
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Made in Germany
of their re-
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