Yamato Scientific Hitech controller type Ⅳ - Manual (Page 3)

1
Cautions on the backup battery Cautions on the backup battery Cautions on the backup battery Cautions on the backup battery
ƒ Charge the backup battery for memorizing program built-in the unit when
you use the unit for the first time., and also do that when you have not used
the unit for 3 weeks and more. To turn off the circuit breaker without
charging may delete the programmed data
ƒ Once turned on the circuit breaker, the battery can be charged.
ƒ It takes about 48 hours to charge the battery completely when discharged.