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allows a three-dimensional measurement of alternating electri-
cal and magnetic fields.
Data loggers: All NFA-meters, starting from the NFA30M, can
equally be applied as data loggers for long-term recordings
with our HF analysers (only those with DC output).
Battery Management
The instrument comes with a rechargeable, high quality internal
NiMH-Battery. The quality of these high-capacity NiMH batteries
(far better than NiCd batteries, for instance) can be best main-
tained if they are almost totally discharged (i.e. used) before being
fully recharged (for > 13 hours or until the green charging LED
turns off). The loading procedure is started by switching the meter
on and off once only after connecting it to the power supply unit.
Changing the rechargeable Battery
The battery compartment is at the back of the analyser. To re-
move the lid, press on the grooved arrow and pull the cap off.
Insert only rechargeable batteries. If you use regular alkaline
(non – rechargeable) batteries do not use a charger or AC-
adapter!
Auto-Power-Off
This function conserves energy and extends the total operating
time.
1. In case you have forgotten to turn OFF the HF analyser or it
has been turned ON accidentally during transport, it will shut
off automatically after 40 minutes.
2. If "low batt" appears vertically between the digits in the cen-
ter of the display, the HF analyser will turn OFF after 3 min in
order to avoid unreliable measurements. In that case charge
the rechargeable battery.
3. The built-in function, Auto-Power-Off, will automatically be
de-activated by plugging in a 2.5 mm DC. The function will
also automatically be re-activated to prevent a total discharge
of the battery by further operation.
Mains operation
The HF analyser can also be supplied with power by using the
mains adapter (for instance for long-term measurements in com-
bination with the NFA). When doing so, please take care to turn
the volume button right down to zero ("-"), otherwise you might
hear the 50 Hertz noise of the mains voltage.
© Gigahertz Solutions GmbH
Made in Germany
15
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