Emerson NITX-300-ET-DVI Installation And Use Manual page 94

Replacing the Battery
The battery provides data retention of seven years summing up all periods of actual data use.
Emerson therefore assumes that there usually is no need to exchange the battery except, for
example, in case of long-term spare part handling.
Board/System Damage
Incorrect exchange of lithium batteries can result in a hazardous explosion.
When exchanging the onboard lithium battery, make sure that the new and the old
battery are exactly the same battery models.
If the respective battery model is not available, contact your local Emerson sales
representative for the availability of alternative, officially approved battery models.
Data Loss
Exchanging the battery can result in loss of time settings. Backup power prevents the loss of
data during exchange.
Quickly replacing the battery may save time settings.
Data Loss
If the battery has low or insufficient power the RTC is initialized.
Exchange the battery before seven years of actual battery use have elapsed.
PCB and Battery Holder Damage
Removing the battery with a screw driver may damage the PCB or the battery holder. To prevent
damage, do not use a screw driver to remove the battery from its holder.
Exchange Procedure
To exchange the battery, proceed as follows:
1. Remove the old battery from the battery header.
2. Install the new battery on the battery header.
3. Dispose of the old battery in accordance with local laws on environmental safety.
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NITX-300-ET-DVI Installation and Use (6806800N97A)