Samlexpower SEC-1250UL Owner's Manual

OWNER'S MANUALPlease read this manual BEFORE operating your battery chargerSwitch Mode, Automatic, Lead Acid Battery ChargerMODELS:SEC-1250ULSEC

10 | SAMLEX AMERICA INC. SECTION 4 | Principle of OperationSTAGE 1- BULK CHARGE STAGE (“I” PHASE) InthisstageSEC-1250ULoutputsvoltageof13

STAGE 2 – ABSORPTION STAGE (“U0” PHASE)Duringthisstage,thechargeroutputsconstantvoltageof14V/14.4VforSEC-1250ULand28V/28.8VforSEC-

12 | SAMLEX AMERICA INC. SECTION 4 | Principle of Operation28V/28.8VatboththechargerandbatteryterminalsistheconstantAbsorptionVolt

SECTION 4 | Principle of Operation ! CAUTION!3stagechargingisrecommendedforchargingstand-alone,unloadedbatteries(thereisnoloadconnecte

14 | SAMLEX AMERICA INC. SECTION 5 | ProtectionsCOOLINGThechargeriscooledbyconvectionandinaddition,hasafanforforcedair-cooling.Th

SECTION 6 | InstallationINSTALLATION DIMENSIONSInstallationdimensionsaregivenbelow.DimensionsaresameforSEC-1250ULandSEC-2425UL.

16 | SAMLEX AMERICA INC. SECTION 6 | InstallationLOCATION, MOUNTING AND SAFETY Thechargerisrequiredtobeinstalledinasafe,wellventilate

SELECTING AC INPUT VOLTAGEThechargerispre-settooperatefrominputACvoltageof120VAC,60Hz.TooperatethechargerfromACinputvoltageof

18 | SAMLEX AMERICA INC. SECTION 7 | Preparing the Charger for OperationStarterBatteryAuxilary /HouseBatteryBattery 4Battery 3Battery 2Battery 1

Inasinglebatterybank,twoormorebatteriesmaybeconnectedinparalleltoincreasetheirAHcapacity.Thesewillbedischargedandchargedasa

2 | SAMLEX AMERICA INC. SECTION 1 | Important Safety PrecautionsThe following safety symbols will be used in this manual to highlight safety an

20 | SAMLEX AMERICA INC. SECTION 7 | Preparing the Charger for Operation-Stage1andStage3.Thisalsoapplieswhentwobanksofbatteriesare

! CAUTION! PLEASE ENSURE THAT POSITION S1- ON AND S2 - ON IS NEVER SELECTED SELECTING THE TIME FOR STAGE 2 - ABSORPTION STAGE (“U0” Phase)Stage2-

22 | SAMLEX AMERICA INC. SECTION 7 | Preparing the Charger for OperationTEMPERATURE COMPENSATION Thecellvoltagesofabatterydependuponthe

REMOTE CONTROL PANEL MODEL NO. 900-RCFig 7.4 Remote Control Panel Model No. 900-RCAnoptionalwiredRemoteControlPanelModelNo.900-RC(Fig7.4a

24 | SAMLEX AMERICA INC. SECTION 8 | OperationSWITCHING ON / OFF ThechargerisswitchedON/OFFwiththeilluminatedACinputpowerON/OFFs

Thesymptomsofabnormaloperationandthepossiblecause(s)andremediesaregivenin the succeeding paragraphs. THERE IS NO OUTPUT. THE AC POWER ON

26 | SAMLEX AMERICA INC. SECTION 9 | TroubleshootingSomeloadslikemotors,compressors,incandescentlamps,halogenlamps,heatingelements,re

BoththeACinputsideandDCoutputsidehavefuses.TheACinputsidefuseislocatedonthePCBF1insidetheunit.Itisratedat250V,12A,Time

28 | SAMLEX AMERICA INC. SECTION 11 | SpecicationsPARAMETER SEC-1250UL SEC-2425ULWIRED REMOTE PANEL (OPTIONAL)YES (Model 900-RC)COOLINGLoad Co

SECTION 1 | Important Safety Precautions•Removemetalitemslikerings,braceletsandwatcheswhenworkingwithbatteries.The batteries can produce

4 | SAMLEX AMERICA INC. SECTION 2 | Description & FeaturesSEC-1250UL(for12Vbatteries)andSEC-2425UL(for24Vbatteries)arehighcurrent

SECTION 3 | LayoutNOTE:BothSEC-1250ULandSEC-2425ULhavethesamelayoutanddimensions Fig. 3.1 Layout of SEC-1250UL and SEC-2425UL4 5 6 7 83

6 | SAMLEX AMERICA INC. SECTION 4 | Principle of Operationi INFOForcompleteunderstandingofworkingofbatterychargers,understandingofo

SECTION 4 | Principle of OperationForexample,whenSEC-1250ULisintheBulkChargeStage1,itsoutputvoltageissetat13.5VDC.Whenabatteryd

8 | SAMLEX AMERICA INC. SECTION 4 | Principle of OperationVoltage curve28.8V27V30282624222018161412108642027.525.022.520.017.515.012.510.07.55.0

SECTION 4 | Principle of Operationtherefore,set0.2to0.3Vhighertocompensatefortheforwarddropsduringoatconditionwhenthechargingcurre