68 Keysight M9037A PXIe Embedded Controller User Guide
Controller Maintenance Replacing the CMOS Battery
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.
Ensure that the battery is correctly replaced. Replace the battery
only with an identical type (CR2032 or equivalent). Dispose of
used batteries according to the manufacturer’s instructions.
Typical battery life varies considerably and depends on operating
temperature and standby (shutdown) time of the system. Typical
life expectancy of a 225mAh battery is 4 to 5 years with an
average on-time of 8 hours per working 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.
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