MM-400A
13. Error List and Maintenance
13-7
(2) Replacing the Battery
The MM-400A incorporates a lithium battery for memory backup.
The life expectancy of the lithium battery is five years. Five years after you purchase
this product or if BATTERY VOLTAGE falls down to “2.2V” in “n-2. SETUP SYSTEM
(2) Screen”, replace the battery according to the following procedure.
WARNING
• When replacing the lithium battery, be sure to turn off the main power in
order to prevent electric shock.
• When the battery is replaced, the stored data is lost. Accordingly, record
the data before replacing the battery.
a. Necessary items
• Non-conductive tool having dull tip like a plastic screwdriver (to lift up the
battery)
• Non-conductive gloves (made of latex, etc.)
b. Maintenance parts
Item Model No.
Manganese dioxide lithium battery CR 2450
c. Replacement procedure
1) Wear non-conductive gloves on both hands.
2) Turn OFF the main power switch and be sure to disconnect a plug from the
outlet.
Turn OFF the main power switch
and disconnect a plug from the
outlet.
To Next Page
Loading...
