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Safety Considerations
To learn how to safely handle and dispose of the FieldFox battery, refer to the Material
Safety Data Sheet for the manufacturer of the battery at:
Overtemperature Discharging: The system microcontroller prevents the
battery from being discharged if the cell temperature exceeds 65C. Once the
overtemperature discharging protection is tripped, the battery is automatically
shut off which results in turning off the instrument as well.
Passive Protection
Reverse Charging: A reverse protection diode prevents against damage or lost
data due to a reverse charge polarity applied to the battery terminals.
Primary Overtemperature: A PTC (positive temperature coefficient) polyfuse in
series between the Li-ion cells and the charging and discharging transistors
will open up and limit current flow to the battery terminals as a function of very
high temperatures. This protection is resettable once the overstress condition
is removed.
The maximum operating temperature of this fuse is 85C.
Secondary Overtemperature: A second PTC polyfuse built into each Li-ion cell
will open up and limit current flow as a function of very high temperatures.
Tertiary Overtemperature: A current interrupt device (CID) within each Li-ion
cell will permanently open up when the temperature reaches 95C. As each cell
fuse is permanently interrupted, overall battery performance will become
severely degraded, up to and including disabling the battery.
Overcurrent Fuse: This is a one-time blow fuse with a rated current of 12A.
To learn how to safely handle and dispose of the FieldFox battery, refer to the
Material Safety Data Sheet for the manufacturer of the battery at:
http://na.support.keysight.com/fieldfox/help/SupHelp/Reference/MSDS.ht
m
Environmental Requirements
Refer to the FieldFox Specifications in
page
Electrical Requirements
The FieldFox allows you to use either the lithium-ion battery or the AC/DC
adapter - both are included.
254
265.
"Specifications/Data Sheet" on
Keysight N9923-90001 User's Guide
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