Inova SV 125 Operating Manual page 385

Cleaning and maintenance
SV 125
4016589
9.4.6.2 Replace battery Panel view (7)
A lithium battery is used by the real--time clock and static RAM; it is not used for
application backup or retention. The clock module has a life expectancy of two
years without power.
DANGER!
When you connect or disconnect the battery an electrical arc can oc-
cur. This could cause an explosion in hazardous location installations.
Be sure that power is removed and the area is nonhazardous before
proceeding.
To replace the battery:
1 Disconnect power from the operator panel.
2 Place the operator panel, display side down, on a flat, stable surface.
3 Detach the communication module (if attached) from the logic module by re-
moving the four screws.
4 Loosen the six captive screws that attach the logic module to the display
module.
5 Carefully lift the logic module away from the operator panel and flip over to
expose the circuit board.
Logic module
Captive screws
on top and bottom
Version 1.0
9--25