Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 465

Replacing User-serviceable Parts
Replacement Procedure for CPU Units with One Battery Connector
1,2,3...
Replacement Procedure for CPU Units with Two Battery Connectors
1,2,3...
Use the following procedure to replace a battery that has been completely dis-
charged.
1. Turn OFF the power to the CPU Unit. (If the power was already OFF, turn
the power ON for at least one minute before turning the power OFF again.)
Note There is a capacitor in the CPU Unit that will back up memory while the bat-
tery is being replaced. If this capacitor is not completely charged by turning
ON the power supply for one minute, data will not be stable during battery
replacement.
2. Insert a small flat-blade screwdriver into the notch at the bottom of the bat-
tery compartment cover and lift open the cover.
3. Disconnect the connector under the cover of the CPU Unit, remove the old
battery from the compartment, and replace the battery with a new one.
Note Complete the battery replacement procedure (at an ambient temperature of
25 C) within three minutes of turning OFF the power supply. If more than
three minutes elapse without a battery installed in the CPU Unit, data will not
be stable during battery replacement.
Use the following procedure to replace a battery that has been completely dis-
charged.
When replacing a battery with the power OFF, connect the new battery while
the old battery is in place. Remove the old battery after connecting the new
battery. (There are two pairs of identical connectors for the battery. The old
battery will not be charged even if the new battery is connected at the same
time.)
1. Turn OFF the power to the CPU Unit. (If the power was already OFF, turn
the power ON for at least ten seconds before turning the power OFF
again.)
2. Insert a small flat-blade screwdriver into the notch at the bottom of the bat-
tery compartment cover and lift open the cover.
Section 11-2
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