Cadex C7000 - Replacing Backup Battery (with OP-70 or OP-72 Only)

Services and Upgrades 13
Replacing Backup Battery (with OP-70 or OP-72 only)
An analyzer equipped with the OP-70 or OP-72 option board contains a backup
battery to retain date/time, print formats and other information when the power is off
or interrupted. With the analyzer off, the battery lasts for 2 to 3 years; with the
analyzer on, the backup battery can last for 10 years.
Replace the battery if the date/time setting is no longer retained after the analyzer is
turned off.
Warning: Make sure the polarity is correct when replacing the backup
battery. Discard the used battery according to the battery manufacturer’s
instructions. Failure to do so may cause explosion.
1. Remove all batteries and adapters, turn the analyzer off and unplug power
cord.
2. Unscrew the 3 screws located on the rear of the C7000 (2 screws on the
C7000ER) to remove the top cover.
• The cover will still be attached to the C7000 by a grounding strap. Put the
cover to one side.
3. Locate the backup battery on the option board mounted vertically in the rear
corner of the analyzer.
4. Gently lift the retainer arm which holds the backup battery and slide the battery
out. Take care
not to short-circuit the backup battery or touch any of the other
electronic components
inside the analyzer. Do not use a metal screwdriver or
something similar. The ribbon cable or the option board may have to be
removed in order to access the backup battery.
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Model Backup Battery Size Replacement Cadex P/N
All 3V, 200mAh 200 x 3.2mm Panasonic BR2032
or Standard CR2032
45-206-0001