Fieldfox On/Off Settings; Fieldfox High-Temperature Protection; Fieldfox Internal Temperatures - Keysight N9912A User Manual

To conserve battery power:
 Use Run/Hold to single-trigger a measurement when needed.
 Press System then
 Briefly press the power button to switch to Stand By mode when the FieldFox is
NOTE When powered by the battery only, the FieldFox can stay in Stand By mode for a
maximum of four hours and then it powers off automatically. When the relative
battery charge drops about 20%, the FieldFox will power off to preserve the
remaining charge.
To recharge a battery:
Use ONLY a FieldFox charger to recharge a battery.
 The battery can be fully charged while in the FieldFox in about 4 hours with the
 It can be fully charged externally using the external battery charger (Opt 872) in
When the battery is removed, the FieldFox can still be powered by the AC/DC
adapter.

FieldFox ON/OFF Settings

 To turn power ON, briefly press the power button. Boot-up takes about 1 minute.
 To switch to Stand By mode (low battery drain), briefly press the power button. To
 To turn Power OFF (very low battery drain), press and hold the power button until
 You can make a setting to automatically Power ON the FieldFox when a power
Power button LED status
 Solid green – Power is ON
 Blinking green – FieldFox in Stand By mode
 Blinking amber – Battery charging.
 Blinking amber and green – Stand By mode and battery charging.
 Not lit – Power is Off and battery is not charging.

FieldFox High-Temperature Protection

The following features prevent degradation or damage in the event of high internal
temperatures in the FieldFox.
Preparing for Initial Use of Your New FieldFox
the display.
Display
knob, or numeric keypad to adjust the brightness to dim the FieldFox display as
much as possible.
not being used. Press again to restore power. All current settings are preserved.
FieldFox either ON or OFF.
about 4 hours.
turn power ON, briefly press the power button. Power and settings are restored
instantly. See the Note above concerning Stand By mode.
power is OFF - about 4 seconds. Data and instrument state are NOT automatically
saved when the FieldFox is powered OFF. Learn how to save data and instrument
state on page 162.
source is connected. Learn how on page 183.
then Brightness. Use the ▲|▼ arrows, the rotary
is shown on
Hold
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