Related Manuals for Samlexpower SEC - 1245A
Summary of Contents for Samlexpower SEC - 1245A
- Page 1 AUTOMATIC BATTERY CHARGER MODELS SEC - 1245A SEC - 2425A OWNER’S MANUAL Please read this manual before operating your charger...
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Page 2: Table Of Contents
CONTENTS Important safety precautions..............2 Description..................3 Features....................3 Components and accessories..............4 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 Page 1... -
Page 3: Important Safety Precautions
IMPORTANT SAFETY PRECAUTIONS Hazardous conditions may result if the charger is not installed or operated correctly. Please read the following instructions to prevent personal injury or damage to the charger. BATTERY RELATED • To reduce the risk of battery explosion, follow these instructions and those marked on the battery. -
Page 4: Description
DESCRIPTION SEC-1245A (for 12 V batteries) and SEC-2425A (for 24 V batteries) are high current, 3 Stage Chargers that deliver 45 A and 25 A respectively for almost 75% to 80% of the charging cycle ensuring a very fast, safe and complete charging of lead acid batteries. The nomenclature “ I Uo U”... -
Page 5: Components And Accessories
COMPONENTS AND ACCESSORIES 1. Output Connnector + Bank 1 2. Output Connector + Bank 2 3. Output Connector - Common 4. Charging Indicator LED 5. DIP Switches for mode selection 6. Jack for Remote Panel 7. Push Switch for Half Power Mode 8. -
Page 6: Specifying Lead Acid Batteries And Chargers
SPECIFYING LEAD ACID BATTERIES AND CHARGERS FLOODED / WET CELL AND SLA (SEALED LEAD ACID) BATTERIES There are two categories of lead acid batteries – Flooded/Wet Cell and Sealed Lead Acid (SLA). A flooded/wet cell battery has a high tolerance to overcharging. However, it will release hydrogen gas when charging that must be properly vented and the water level must be checked frequently. - Page 7 UNITS OF BATTERY CAPACITY The battery capacity is the 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.
- Page 8 DEPTH OF DISCHARGE AND BATTERY LIFE The more deeply a battery is discharged on each cycle, the shorter the battery life. Using more batteries than the minimum required will result in longer life for the battery bank. A typical cycle life chart is given at Table 2 below: Table 2.
- Page 9 CHARGING BATTERIES The batteries can be charged by using good quality AC powered battery charger or from alternative energy sources like solar panels, wind or hydro systems. Make sure an appropri- ate battery charge controller is used. It is recommended that the batteries may not be charged at current >...
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Page 10: Charging Stages
CHARGING STAGES Stage 2 Uo Phase Stage 1 Stage 3, Timed for 4 / 8 I Phase U Phase Hours Curve for Voltage U, Uo Voltage V Curve for Current I 80% of current 10% of current capacity of capacity of charger charger Current, I... - Page 11 BATTERY VOLTAGES – CHARGED AND DISCHARGED CONDITIONS The cell voltage of a battery depends upon the temperature of the battery and has a negative temperature coefficient – the voltage level increases at lower temperature and decreases at higher temperature. The voltages are normally specified at 80º F (26.7º C). On a 12 volt battery, the no load battery voltage is between 11.4 VDC (fully discharged) and 12.9-13.0 VDC (fully charged).
- Page 12 Stage 2 - Constant Overcharge Voltage, Timed Absorption / Boost Charge Mode (Uo Phase): When the charger enters Stage 2 from Stage 1, the battery is approximately 70% to 80% recharged. As soon as it enters this stage, a timer circuit is also initiated. The timer circuit can be selected to operate for 4 or 8 hours with the help of DIP Switches (5) (See under “Selecting time for Absorption / Boost Stage”).
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Page 13: Cooling
CAUTION! 3 stage charging is recommended for charging stand-alone 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 change over from Stage 2 to Stage 3 .This will lead to over- charging and loss of electrolyte. -
Page 14: Protections
PROTECTIONS The charger has the following protections: SHORT CIRCUIT SHUT DOWN In case of a short circuit on the output side, the output of the charger will be shut down. The Charging Indication LED (4) on the front panel will turn red (On the Remote Panel (15), the red LED “I Phase”... -
Page 15: Installation
INSTALLATION LOCATION, MOUNTING AND SAFETY The charger is required to be installed in a safe, well ventilated and dry location. Please see the details given under “Important Safety Precautions”. The charger can be mounted horizontally or vertically. When mounting vertically, please ensure that the axis of the fan rotor is horizontal (to reduce stress on the bearing). -
Page 16: Preparing The Charger For Operation
PREPARING THE CHARGER FOR OPERATION SELECTING AC INPUT VOLTAGE The charger is pre-set to operate from AC input voltage of 120 VAC, 50 / 60 Hz. To operate the charger from AC input voltage of 230 VAC, 50 / 60 Hz, change the internal setting as follows: 1. - Page 17 CHARGING MORE THAN ONE BANK OF BATTERIES CAUTION! When charging more than one bank of batteries at the same time using 3 Stage Charging, ensure that the batteries in the banks are in a similar discharged condition. If one bank is completely discharged and another is almost fully charged, the bank that is fully charged will be subjected to over charge condition during the time when the charger remains in Stage 2 (“Uo”...
- Page 18 DIP Switch Setting for SEC-2425A Float Boost Battery Type Charging Stages / Application Stand-alone charging OFF * ON * 27 V * 28.8 V * Flooded / AGM * 3 Stages (Stages 1, 2, 3) 27 V 28.0 V Gel Cell 3 Stages (Stages 1, 2, 3) Charging loaded battery Charging two banks and the batteries in the two banks are in dissimilar discharged...
- Page 19 REDUCTION OF MAXIMUM CHARGING CAPACITY TO HALF TO CHARGE LOWER CAPACITY BATTERIES Batteries should not be charged at very high currents to ensure long life. Normally, the maximum charging current should be limited to approximately C/5 (where C is the AH capacity of the battery at 20 hour rate).
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Page 20: Remote Panel
REMOTE PANEL - MODEL NO. 900-RC An optional wired Remote Panel Model No. 900-RC (15) can be ordered. It comes with 10 metres of flat ribbon cable (14) that has 8 position modular male connector on either end. The Remote Panel (15) can be used to switch on / switch off the charger and also monitor the charging status of the charger from a remote location. -
Page 21: Operation
OPERATION SWITCHING ON / OFF The charger is s witched on /off with the illuminated AC input power on / off switch (9) located on the rear panel of the unit. The switch is illuminated Red when switched on. INDICATION OF NORMAL OPERATION AND CHARGING STATUS When the charger is switched on without any load, the Charging Indicator LED (4) on the front panel turns Red, Orange and then Green. - Page 22 CHARGING A BATTERY INSTALLED IN A VEHICLE Follow these steps when the battery is installed in a vehicle. A spark near a battery may cause battery explosion. For safety and to reduce the risk of spark near the battery: Position AC and DC cords to reduce risk of damage by hood, door or moving engine parts.
- Page 23 POWERING OTHER DC LOADS The charger can be used as a power supply or as a DC UPS (DC Un-interruptible Power Supply. For both these applications, first set switches S1 and S2 of DIP Switch (5) to off position to set the charger to work in 2 stage mode (See under “Selecting the Type of Battery and Charging Stages”).
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Page 24: Troubleshooting
TROUBLESHOOTING 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 / off switch (9) does not illuminate when switched on. The charging indicator LED (4) is off (On the Remote Panel (15), the Green LED under “Power”... - Page 25 When the charger is powered and is being used as a DC power supply / UPS, the output voltage drops when the DC load is switched on or increased. The charger is being forced into current limit condition. The load is trying to draw current more than the current limit value of the charger –...
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Page 26: Internal / External Fuse Ratings
The battery is taking excessively long time to fully recharge When the charger is powered and is being used as a DC power supply / UPS, the output voltage drops at lower DC load currents The unit is in “Half Power Mode”. (Green LED (8) located on the bottom left corner of the front panel of the unit is lighted). -
Page 27: Specifications
SPECIFICATIONS PARAMETER SEC-1245A SEC-2425A Nominal Input Voltage Factory Preset 120 VAC/50-60 Hz 120 VAC/50-60 Hz (105 to 125 VAC) (105 to 125 VAC) By changing internal 230 VAC/50-60 Hz 230 VAC/50-60 Hz jumper position (207 to 253 VAC) (207 to 253 VAC) Input Current At 120 VAC input 10.3A... -
Page 28: Warranty Information
WARRANTY INFORMATION 2 YEAR Limited Warranty SEC-1245A / SEC-2425A battery chargers manufactured by Samlex America, Inc. (the “Warrantor”) are warranted to be free from defects in workmanship and materials under normal use and service. This warranty is in effect for 2 years from the date of purchase by the user (the “Purchaser”). - Page 29 Notes...
- Page 30 Attach receipt...
- Page 31 Samlex America Inc. 110-17 Fawcett Road Coquitlam B.C., Canada V3K 6V2 e-mail: samlex@samlexamerica.com website: www.samlexamerica.com SEC-1245A / SEC-2425A (Aug2008)