USAutomatic SENTRY 300 S - WARRANTY AND REPAIR INFORMATION

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POSSIBLE REMEDIES TO CHARGE CONTROLLER ‘FAILURES’
WRONG BATTERY VOLTAGE Chargerconnectedtoa24vbattery.Reconnecttoabattery
ratedat12Vdc.
REVERSE BATTERY
CONNECTION
Checkandcorrectanyreversebattery.
THERMAL RUNAWAY
CONDITION
OldBattery-cells,insidebattery,agedifferently.During
charging,andoverthecourseofmanyyearsofoperation,
OR,manybatterydischargestolevelsbeyond100%
discharged,thiserrormayoccurandthebattery(s)mayhave
tobereplaced.
CHARGE TIME MONITOR –
1 and 2
Batterypacktooktoolongtocompleteitscharge.Possible
causesincludeaload(gatecyclingrepeatedlyforalong
periodoftime)duringchargingorthebatterypackistoo
large(Manybatteriesconnectedinaparallelcircuit).Apply
thefollowingformulatodetermineiftheTimermayrunout
duetoalargebattery:
Charge Time = BatteryCapacity(AH) x1.25
2
Calculated Charge Time must be less than approximately
108hrs.
OutputAmpsandBatteryCapacity(AH-Ampere-hour)are
listedonyourbatteryorcontactyourbatterypurchasing
source.
Example:Chargetimetoforafullydischarged36AHbattery:
36AH/2Ampsx1.25=22.5Hrs-oktouse.
EXCESSIVE BATTERY DRAIN Excessivelyhighnumberofcyclesdischargingthebattery
beyondpointofnoreturn.Stopgate,andallowbatterytime
torecharge.
PRE-QUALIFICATION TEST -
1 and 2
DuringBatterytesting,ifabatterywaspreviouslyallowed
todischargetoaverylowvoltage,suchas1or2Vdc,the
chargerputsalowcurrentthroughthebatterytotrytoget
thebatterytocomebacktolife.Thebatterymaybetaking
toolongtocomeback.
NO POWER ON CHARGER CheckthetransformerSupplyAdaptorPlug-in,ortheSolar
Panelforproperconnection.