PROTECTION:
Over Current Protection
: the NS-1220C will automatically shut down if the total
load is over 20 Amps. To reset the PS, turn the unit OFF and wait 20 seconds, then
turn the unit ON - the PS will recover.
Polarity Reverse Protection
: when the battery polarity is reversed, the
“CHARGER” will stop output immediately. If the total load is over 20A in the
meantime, the PS will shut down.
Low Voltage protection
: when a battery is connected to “CHARGER” for charging,
the “CHARGER” will automatically detect its voltage. If the battery voltage is higher
than 4V, then it will start charging. If the voltage is lower than 4V, normally the
battery is considered to be damaged and it is not necessary to charge it. “CHARGER”
will stop the output charging current.
Short Circuit Protection
: output terminal short circuit will not damage the PS, it
will be simply turn off. When short circuit is removed, the “POWER” will recover
immediately. The “CHARGER” should be reconnected with a battery to reactive it
(the battery voltage should over 4V).
Over Voltage Protection
: when the charger output is over 16V, it will turn off. If the
output is lower than 10V, it will also turn off.
The NS-1220C has a 6 amp AC input fuse inside of the unit. To replace the fuse you
should remove the old fuse by opening the case and replace it with a new 6 amp fuse.
