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4.0 BATTERY BACKUP
Inside the unit is the battery used to backup the internal clock chip. If DIP switch 1 (battery backup) is set to "ON" and the
unit fails to keep the correct time after a power failure then it may be possible that the backup battery is flat. To replace
the battery, remove the rear of the DIN rail enclosure using a small flat blade screwdriver.
Inside you will find two boards which are screwed together. Carefully removed these from the DIN rail enclosure.
Fig 4.1
The battery required is a 3V Lithium (CR2032) such as Redback S 4999B and is mounted in a vertical mount battery holder
as shown in figures 5.1 and 5.2.
Fig 4.3
Remove the screws highlighted in figure 5.3 and then remove the top board, so that the battery is accessible as shown in
figure 5.4.
Replace the battery and then reverse the procedure to assemble the unit back together. Make sure the header pins
highlighted in figure 5.4 are lined up correctly before screwing the boards back together.
Redback® Proudly Made In Australia
Fig 4.2
Fig 4.4
5
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