SamplexPower SEC-1245A Owner'S Manual Download | Manualshive

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110-17 Fawcett Rd
Coquitlam, B.C.
Canada V3K 6V2

T: 604 525 3836
F: 604 525 5221

e-mail: [email protected]
website: www.samlexamerica.com

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Summary of Contents for SEC-1245A

Page 1: ...Owner s Manual Please read this manual before operating your power supply Desktop Switching Power Supplies Model SEC 1245A SEC 2425A ...

Page 2: ... Specifying lead acid batteries and chargers 5 Charging stages 9 Cooling 12 Protections 13 Installation 14 Preparing the charger for operation 15 Remote Panel 19 Operation 20 Troubleshooting 23 Internal external fuse ratings 25 Specifications 26 Warranty information 27 CONTENTS Page 1 ...

Page 3: ... the same com partment as batteries CHARGERRELATED Do not operate the charger in a closed in area or restrict ventilation in any way Install in a well ventilated cool dry place The charger must not be operated in a damp or wet environment When mounting in a boat make sure it is not subjected to bilge water splash Do not block the ventilation openings openings for the cooling fan There should be at...

Page 4: ... selectable 2 or 3 Stage automatic charging algorithm with timed Boost Absorption Stage and temperature compensation ensures rapid safe and full return of capacity Ability to reduce maximum charging current to approximately 1 2 of the rated capacity during Half Power Mode This allows safe charging of lower capacity batteries Includes a Battery Temperature Sensor allowing temperature compensated ch...

Page 5: ... 6 Jack for Remote Panel 7 Push Switch for Half Power Mode 8 LED for Half Power Mode indication 9 AC input Power On Off Switch 10 AC fuse holder 11 Cooling fan 12 Jack for Temperature Sensor 13 AC power cord inlet 14 Cable with plug 15 Remote Panel 14 15 are optional accessories 16 Temperature sensor element 17 Plug 4 7 5 3 11 12 10 13 14 15 16 17 Page 4 6 8 1 2 9 ...

Page 6: ...cle starting typically discharges 1 3 of a healthy SLI battery s capacity The automotive SLI battery is not designed for repeated deep discharge where up to 80 of the battery capacity is discharged and then recharged If an SLI battery is used for this type of application its useful service life will be drastically reduced DEEPCYCLEBATTERIES Deep cycle batteries are designed with thick plate electr...

Page 7: ... measure of the energy the battery can store and deliver to a load It is determined by how much current any given battery can deliver over a stipulated period of time The energy rating is expressed in Ampere Hours AH For example as one of the bench marks the battery industry rates batteries at 20 hour rate i e how many Amperes of current the battery can deliver for 20 hours at 80 º F till the volt...

Page 8: ...he positive terminal of the series connection The negative of the first battery is connected to the positive of the second battery The negative of the second battery is the negative of the series connection When two or more batteries or battery strings are connected in parallel their voltages remain the same but their capacities add up For example if two 12 V 105 AH batteries are connected in para...

Page 9: ...roller is used It is recommended that the batteries may not be charged at current C 5 where C is the AH capacity of the battery at 20 hour discharge rate Also for complete charging return of 100 capacity it is recommended that a 3 stage temperature compensated charger may be used Constant current bulk charging followed by constant voltage boost absorption charging followed by constant voltage floa...

Page 10: ...dependent forward voltage drop across the isolating diodes The Float and Boost Absorption voltages before the diodes are therefore set 0 2 to 0 3 V higher to compensate for the above forward drop during float condition when the charging current would have dropped to less than 1 A Hence the output voltage at the terminals of the two banks at no load nothing connected to the terminals of the banks w...

Page 11: ...ring this period SEC 1245A will deliver a constant current I 45 A and SEC 2425A will deliver a constant current I 25 A The charger will be operating under current limit condition and the voltage at the charging terminal will be same as the actual voltage of the discharged battery The voltage of the battery will slowly start rising and when the battery voltage approaches voltage U 13 8 V SEC 1245A ...

Page 12: ... some defective shorted cells or due to an external load in a loaded battery the charger will be forced to change over to Stage 3 or Float Maintenance Charge Mode U Phase after elapse of 4 or 8 hours determined by the selected duration of the timer circuit The battery will be charged to approx 95 of its capacity by the end of this stage Ideally it would be at 100 but there are some practical limit...

Page 13: ...dicator LED 4 will be Red The fan will automatically stop when the charger enters Float Stage 3 Charging Indicator LED will be Green Please note that the fan will be off in the Float Stage 3 The Charging Indicator LED will be Green The operation of the fan is controlled by the current supplied by the charger as follows SEC 1245A SEC 2425A Switches on when change over from Float stage U Phase to Bo...

Page 14: ...n red On the Remote Panel 15 the red LED I Phase will light the green LED Power will however remain lighted The fuse s will be required to be replaced for the unit to function again THERMAL OVERLOAD SHUTDOWN CAUTION Keep the charger in a well ventilated cool and open area Do not block the vent holes on the sides or the discharge openings of the cooling fan In case the fan fails or if the cooling i...

Page 15: ...gative connec tion TERMINAL LUGS FOR CONNECTION TO THE CHARGER For firm connection when using stranded cable crimp solder pin style terminal lugs on the charger end of the DC cables used for connecting to the battery other DC loads 3 pieces of pin style terminal lugs have been provided as follows For SEC 1245A Will accomodate up to AWG 4 cable For SEC 2425A Will accomodate up to AWG 8 cable CABLES...

Page 16: ...Earth ground Color code for the power cord conductors is Line L Black Neutral N White and Earth Ground Green CONNECTING THE BATTERIES OR OTHER DC LOADS The output of the charger has a common Negative connector 3 and 2 Positive connectors 1 2 for connection of 2 banks of batteries Each Positive connector has its own internal isolating diode which works as a battery isolator If more than one bank of...

Page 17: ... an external load the voltage level of Stage 2 is required to be set to the same level as the voltage of Stage 3 to prevent over charging Effectively the battery will be charged in 2 stages only Stage 1 and Stage 3 This also applies when two banks of batteries are being charged simultaneously and the batteries in the two banks are in a dissimilar state of discharge A pair of switches S1 S2 out of ...

Page 18: ...ease ensure that position S1 ON and S2 ON is never selected SELECTINGTHE TIME FOR STAGE 2 CONSTANT OVERCHARGE VOLTAGE TIMED ABSORPTION BOOST CHARGE MODE Uo PHASE Stage 2 Constant Overcharge Voltage Timed Absorption Boost Charge Mode Uo Phase is controlled by an internal timer circuit Time of 4 hours or 8 hours can be selected with the help of a pair of switches S3 S4 of the set of 4 DIP Switches 5...

Page 19: ...lls inside the battery The cells have a negative temperature coefficient their voltage levels increase at lower tempera ture and decrease at higher temperature The negative temperature coefficient is 2 8 mV º F cell or 16 8 mV º F 6 cells for a 12 V battery or 33 6 mV º F 12 cells for a 24 V battery The battery and battery charger voltages are normally specified at a temperature of 80 º F 26 7 º C...

Page 20: ...r jack on the Remote Panel 15 and the other connector to the modular jack 6 on the charger OPERATION The charger should be first switched on with the help of theAC input power on off switch 9 located on rear panel of the charger The charger can now be switched on and off with the help of the keypad switch on the Remote Panel 15 INDICATIONS Whenever the charger is switched on the Green LED Power wi...

Page 21: ...Half Power Mode Charging Indicator LED 4 on the front panel is Orange Indicates that the charger is in Stage 2 Constant Overcharge Voltage Timed Absorption Boost Charge Stage Uo Phase and is delivering the following current SEC 1245A than 9A 1A and 36 A when moving from Float Phase U to Normal Mode Boost Phase Uo or 36 A and 4 5 A 0 5A When moving from Boost Phase Uo to Float Phase U SEC 1245A tha...

Page 22: ...f heavy gauge metal part of the frame or engine block which is away from battery Do not connect to carburetor fuel lines or sheet metal body parts 7 Connect the charger AC power cord to the AC outlet 8 When disconnecting the charger turn switches to off disconnect AC power cord remove connection from the vehicle chassis and then remove connection from the battery terminal CHARGING A BATTERY OUTSID...

Page 23: ...pply the charger simultaneously powers the DC load as well as the battery As long as theAC power to the charger is available and the charger is working normally the charger will supply the DC load as well as charge float the battery In case the AC power fails or if the charger stops working the battery will automatically power the DC load As soon as the AC power to the charger is restored the DC l...

Page 24: ...upport of assistance There is no output voltage and the Charging Indicator LED 4 is red On the Remote Panel 15 the Red LED under I Phase is lighted the Green LED under Power is lighted The DC side output fuse is blown The DC side fuse will blow if the battery is connected in wrong polarity Ensure that the Positive battery post is connected to the Positive connector of the charger either Bank 1 or ...

Page 25: ...recommended for charging stand alone or unloaded batteries there is no load connected to the battery when it is being charged If a load is also connected simultaneously a part of the charger s output current will be diverted to this load Thus the charger may remain locked in Stage 2 if the current drawn by the load is more than the preset value of threshold current determining transition from Stag...

Page 26: ...Power Mode if the full rated charging capacity is required INTERNAL EXTERNAL FUSE RATINGS Both the AC input side and DC output side have fuses The AC input side fuse is housed in a fuse holder 10 and is located on the rear panel It is rated at 250 V 12 A Time Delay Size 5mm x 20 mm ceramic tube Current ratings are as follows For operation from 120 VAC input pre set 12 A For operation from 230 VAC ...

Page 27: ...s Boost Stage Uo Switch selectable Switch selectable Temperature Compensation Yes With sensor TF 500 Yes With sensor TF 500 Wired Remote Panel Optional Yes Model 900 RC Yes Model 900 RC Cooling By fan By fan Protections Overload Yes Yes Short Circuit Yes Yes Reverse polarity Yes Yes Thermal overload Yes Yes Output Banks 2 2 Output Connector Tubular hole dia 8 mm Tubular hole dia 8 mm with set scre...

Page 28: ... Warranty service shall be performed only by the Warrantor Any attempt to remedy the defect by anyone other than the Warrantor shall render this warranty void There shall be no warranty for defects or damages caused by faulty installation or hook up abuse or misuse of the equipment including exposure to excessive heat salt or fresh water spray or water immersion No other express warranty is hereby...

Page 29: ...110 17 Fawcett Rd Coquitlam B C Canada V3K 6V2 T 604 525 3836 F 604 525 5221 e mail samlex samlexamerica com website www samlexamerica com 4 4 VH ...

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