Keysight Technologies S9101A, Startup Manual, Page: 28 / 98

3 Review Hardware Components
CMOS Backup Battery
WARNING
Danger of explosion if
battery is incorrectly
replaced.
Replace only with the
same or equivalent type
recommended.
Discard used batteries
according to man-
ufacturer's instructions.
Follow proper disposal
process. Only dispose of
old battery according to
local codes.
All electric and electronic
equipment are required to
be separated from normal
waste for disposal.
NOTE
Typical battery life varies
considerably and depends
on operating temperature
and standby (shutdown)
time of the system. Typical
life expectancy of a
190 mAh battery is 4 to 5
years with an average on-
time of 8 hours per work-
ing day at an operating
temperature of 30°C. To
ensure that the lifetime of
the battery has not been
exceeded, you should
change the battery after 3
to 4 years of service.
Keysight’s M9037A is equipped with a 3.0 V "coin
cell" lithium battery. This battery powers the
clock circuit and retains configuration memory in
CMOS RAM while the system is turned off.
To replace the CMOS Backup Battery
1. Turn off power to the PXIe chassis.
2. Remove the M9037A embedded con-
troller from the chassis. Observe all
anti-static precautions.
3. Locate and remove the battery. Press
the battery release latch (1). The battery
should pop out (2).
4. Place the new battery in the socket.
Make sure that you correctly orient the
battery for installation. The positive pole
(+) must be on the top. You may find it
helpful to angle the battery in and pull
back on the battery release latch.
Replace the lithium battery with an
identical battery (BR2032 or equi-
valent).
5. Install the embedded controller back in
the PXIe chassis and apply power.
The battery’s operational temperature
range is less than that of the M9037A’s
storage temperature range. For exact
range information, refer to the battery
manufacturer’s specifications.
See the Data Sheet for the Keysight M9037A, 5991-3661EN .
24 S9101A 5G Multi-Band Vector Transceiver, Startup Guide