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4.4 Main controller
4.4.1 Installation of controller battery
Every delivered unit is come with a lithium coin cell 3V battery, packed in a sealable plastic
bag as illustrated in figure below:
The battery acts as backup power for controller internal memory retention (setting and
parameters) when there is power failure.
After the unit get to the site, must install the controller battery by the customer service
technicians before commissioning. Adjust the controller time to local time is required.
Please refer to procedure below for battery installation in the controller:
1. Power off the controller
2. Using a small screwdriver, remove the front cover on the controller
MT3006 (POL687.70)
3. Insert the battery into the compartment on the side with the battery
facing upward as shown in figure below:
4. Close the left side of the cover and then pressing on the right side
with a finger.
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