Agilent Technologies Infinium DCA 86100A Service Manual page 146

Replacing Instrument Assemblies
To replace the A4 assembly battery
N O T E Do not throw batteries away but collect as small chemical waste.
WA R N I N G Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent
type recommended. Discard used batteries according to manufacturer's instructions.
7 After reassembling the DCA, power it up and follow the procedure from the on-line help to reset
the time and date.
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