Made in Germany
May 2017
- 20 -
© Gigahertz Solutions GmbH
ty. Due to the large variation in the Lithium Ion batteries
supplied by their manufacturer, the maximum capacity as
well as the charging time are subject to fluctuations. The
specified battery running time is mostly reached after a
charging period of approx. 8-12 hours. A (significantly) long-
er charging period, as well as a recalibration of the capacity
display (see Chapter 9) may considerably extend the battery
running time. The capacity display can only be taken as an
estimate. Reliable information can be obtained by logging
until auto-power-off and subsequent verification of the actu-
al logging period with NFAsoft.
6.3
External Power Supply
For logging with external power supply use the 12 V AC
adaptor. After a logging time of more than the typical 24 to
48 hours the probability of an unwanted shutdown due to
unexpected operating situations increases significantly.
Longer logging times can therefore not be guaranteed.
Recording E-fields with an AC adapter connected results
in meaningless data.
Longterm recordings of the 3D magnetic field and the AC
entry can also be done using external power from an AC
adapter. In this case, the adapter should be placed as far as
possible from the instrument and turned in such a way that
the resulting magnetic field is as low as possible, as it can
influence the readings.
15
6.4
Battery Change
For safety reasons, please only use original battery packs
classified by us (integrated protection circuit. The two bat-
tery cells fit tightly, but can easily be removed for the pur-
pose of battery change. In no case untighten the screws of
the meter! Putting the meter together is very complicated,
and therefore subject to a fee if it needs to be done by one
of our technicians.
15
To determine the emission created by the AC adapter at the location of the
NFA, proceed as follows:
-
Place the instrument and adaptor into their measurement location
-
Connect the NFA to the AC-adapter. Wait for the readings to stabilize.
-
Disconnect the adapter from the NFA without changing its position and ori-
entation; wait for the display to stabilize.
Evaluating the logged data on the PC will potentially show difference that can
be corrected, if necessary.
Summary of Contents for NFA 1000
Page 39: ...Made in Germany ...
