Omron BN50T Instruction Manual page 67

 BN220T/BN300T
1
. Use a screwdriver to loosen (turn counter-clockwise) the 4 screws at the top of the front
panel of the unit, until they turn freely. (The screws cannot be removed from the front
panel.) 1)
Pull the front panel toward you to remove. 2)
Loosen the 4 screws.
1)
2
. Remove the battery connector from the plate cover. 1)
The battery connector is locked in the fastening hole in the plate. Lift the connector
(1)-1), move to the center of the hole (1)-2), and pull the connector to the back to unlock
(1)-3).
Hold the battery connector, and pull the connectors apart. 2)
Do this for both battery connectors.
Battery connector
BN50T/BN75T/BN100T/BN150T/BN220T/BN300T
1)
4 Maintenance and Inspection
4-2 Replacing the battery
2)
Back of the plate cover
1)-1 1)-2
Move
connector
to hole's
center
Connector
locked
2) 2)
Disconnect by holding here.
1)-3
Connector
unlock
4-13
4