Proface PS4800 - 19 Panel PC" - Manual (Page 154)

Maintenance
154
NOTE:
z The product design allows you to change the lithium battery with the Industrial
Personal Computer either on or off.
z Saved settings will be restored when changing the lithium battery with the power
turned off (as the settings are stored in non-volatile EEPROM). However, the date
and time must be reset because this data is lost when changing the lithium
battery.
z Only qualified personnel can change the lithium battery.
Step Action
1 Disconnect the power supply to the Industrial Personal Computer.
2 Touch the housing or ground connection (not the power supply) to discharge any
electrostatic charge from your body.
3
1 Remove the black plastic cover from the lithium battery compartment
2 Carefully pull out the lithium battery using removal strips
4 The lithium battery should not be held by its edges. Insulated tweezers may also be
used for inserting the lithium battery.
5 Insert the new lithium battery with correct polarity: