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6/ Maintenance
There is no maintenance interval prescribed by the manufacturer of the product.
6.1. Battery replacement
A battery of the type CR1632 or BR1632(A) is used as backup battery for the RTC and if available also SRAM.
To replace the battery, pull out the side tab of the battery holder E1 on the device and replace the battery with a new
one. The battery holder is then plugged back into the device.
When replacing the battery, make sure that the battery and the battery holder are inserted with the correct
orientation as shown in the illustrations below.
Figure 5: Battery replacement
Pull out the tab of the battery holder and thus the
whole battery holder out of the device. Remove the old
battery from the holder.
Insert the battery into the holder with the positive pole
facing upwards
Slide the battery holder with the open side towards the
bottom (type plate)
Insert the battery correctly into the battery holder.
If the battery is inserted with the wrong side, the non-volatile data and real time clock of the
device will not be buffered if the supply voltage fails.
The battery must be inserted into the battery holder with the positive pole upwards and the
battery holder must be inserted with the open side towards the bottom of the device (type
plate).
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Control Unit CUmini 5x-2x0x - Rev. 1.A
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