Gigahertz Solutions NFA 30M Operating Manual page 18

Made in Germany
The meter turns off after quarter of an hour
The sum of the frequency specific channels is higher than the
value of "All3D"
NFAsoft is showing measurement values at 16.7 Hz inspite of
the 50 Hz high pass filter being set
and
The sum of the 16.7 Hz channel and the other channels is
higher than the value of "All3D"
The NFA was configurated according to customer require-
ments with NFAsoft, but when restarting, NFAsoft shows the
original settings
February 2016
NFAsoft allows you to change the interval for the auto-power-
off feature. (Auto-power-off is deactivated while recording!)
The signals of the different frequencies are added up quadrati-
cally (square root out of the sum of squares), which means that
a simple addition of the individual signals will result in a higher
For example, if you take 500 nT at 16.7 Hz plus 1000 nT at
50 Hz, a simple addition will amount to 1500 nT, whereas the
quadratical addition (= "All3D") will amount to only 1118 nT.
If the 50 Hz high pass filter has been set with the help of the
configuration part of NFAsoft (maybe even as pre-setting), this
only applies to the channels "All3D", "AllX", "AllY", and "AllZ".
Nevertheless, possible frequency components at 16.7 Hz will
also be recorded in the correspondent channel. In this case the
sum of the frequency specific channels may well be higher than
The "CONFIG.NFA" file on the SD-card transfers user-specific
configurations to the NFA. NFAsoft can write this file, but not
read it. Therefore you cannot use NFAsoft to check the con-
figuration of the NFA, but only to instal new configurations.
You can save frequently used configurations as presets to a
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value than the sum of "All3D".
that of "All3D".
dropdown menu in NFAsoft.
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