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Made in Germany

For a synchronization of the time, connect the NFA (with

SD card!) To the computer with the USB cable. Synchro-

nized station happens automatically, as soon as “CON-

FIG.NFA” is safe to the SD card.

If the high pass is set at 50 Hz, this only refers to the broad

band reading or recording as it reduces the influence of

movement induced field components. For full information,

the frequency components of sinusoidal waves at exactly

16.7 Hz are still recorded separately and can be shown with

the help of the NFAsoft.

If the filter is set, it is therefore not unusual for the summary

indication “All3D” to be smaller than the indication for 16.7

Hz, as the signal components at 16.7 Hz are not integrated

in the total sum of “All3D”. Furthermore, the signals of the

different frequencies are added up quadratically, which in

turn means that the result of simply adding the individual

signals will also differ from the sum of “All3D”. (For more

information on this matter see chapter 9).

8 Firmware Update

The file: “firmware.nfa“ is the meter’s operating system

stored in its internal memory

. As known from computer

programmes, this software is subject to continuous im-

provements and upgrade, and can be updated as described

below. As also known from computer programmes, a new

version of an operating system is always intensely tested

prior to distribution, but errors may sometimes occur which

are only detected in the course of its use. For this reason,

there are always two versions of the firmware on the internal

memory of the meter. One is revision 058 which has been

running without problems for many years, and should there-

fore be kept on the meter memory for “emergency cases”,

the other is the latest revision at the point of purchase, al-

ways with the a.m. risk.

Please differentiate: With „NFAsoft“ the firmware can be configured and the user

settings stored in the file „CONFIG.NFA“. This has nothing to do with the firm-

ware itself.

Gigahertz Solutions NFA 1000 User Manual

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