Gigahertz Solutions NFA 1000 Operating Manual page 17

Initiating Long Term Logging of the Meter
For a long term recording of several hours or days, set the "Power" switch to "Log".
In this mode the LEDs and the sound are turned off to extend the battery life. The
recording will start automatically after some seconds. The display will show the log-
file number ("L999"), the elapsed time of recording as well as the remaining time of
use in an infinite loop until the battery is empty or the SD-card full. For information
on the display format please see chapter 3.2.
The instrument records all data corresponding to its field selection switch. The
fourth channel will automatically record the E-field if the field selection switch is set
to M3D and the AC/DC socket is not connected. However, if an HF analyzer is con-
nected to the AC/DC socket, it will automatically record the output of this external
device.
"Locking" of the Instrument
"Locking" ensures that the instrument exclusively executes the predefined tasks
when left at the customer's place for long-term recordings. To lock, remove the SD
memory card from the instrument after predefining the measurement settings, set
the micro switch on the top left of the SD-card to "lock" or "write protect" and rein-
sert it. Note: The data will still be recorded!
IMPORTANT: Don't forget to unlock the SD memory card finishing the longterm
recording!
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© Gigahertz Solutions GmbH 350-027_NFA1000400-6-2_EN-von-susanne as of October 2011