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. -
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 Mute 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 TTERIES load. It is determined by how much current any given battery can deliver over a stipu- lated period of time. The energy rating is expressed in Ampere Hours (AH). As a bench mark, 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 appropriate 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 1245A) or voltage U = 27.6 V (SEC-2425A), the current drawn by the battery will reduce below the current limit value of 45 A (SEC-1245A) and 25 A (SEC-2425A). The charger will exit current limit condition and will now output constant voltage of U = 13.8 V (SEC-1245A) or constant voltage U = 27.6 V (SEC-2425A).
- Page 12 When the charging current reduces to approximately 10% of the charger capacity “I” (10 % of 45 A = 4.5 A for SEC-1245A and 10% of 25 A = 2.5 A for SEC-2425A), the charger automatically transitions to “Stage 3 - Float / Maintenance Charge Mode (U Phase)”.
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Page 13: Cooling
“Mute Mode”, the current output during this mode will be automatically reduced (16 to 18 A for SEC-1245A and 8 to 10 A for SEC-2425A) to limit the temperature rise. Please see details under “Mute Mode / Reduction of Maximum Charging Capacity”... -
Page 14: Protections
REVERSE BATTERY CONNECTION CUT OFF The output is internally fused on the DC side – 2 x 30 A fuses for SEC-1245A and 2 X 20 A fuses for SEC-2425A. In case, the polarity of the battery connection is reversed, the fuse(s) will blow. -
Page 15: Installation
Recommended DC cable sizes are given below (Based on a voltage drop of 2%). The length in feet is the length of the pair of the positive and negative DC cables from the charger to the battery / other DC loads Distance from battery SEC-1245A SEC-2425A Up to 6 ft. AWG # 6... -
Page 16: Preparing The Charger For Operation
If more than one bank of batteries is connected, these will be charged at the same time as long as the AC power is available to the charger (the maximum charging current of 45 A of SEC-1245A and 25 A the batteries depending... - Page 17 Caution!! : Do not change the Dip Switch setting when the charger is operating. Always change the Dip Switch setting when the charger is off, i.e. after disconnecting the charger from the AC input power) NOTE: The voltages are for battery temperature of 80º F DIP Switch Setting for SEC-1245A Float Boost Battery Type...
- Page 18 “Mute Mode” push switch (7). As the fan will be switched off during the “Mute Mode”, the current output during this mode will be automatically reduced to 16 to 18 A for SEC-1245A and 8 to 10 A for SEC-2425A to limit the tempera- ture rise.
- Page 19 • 25 A x 5 = 125 AH for SEC-2425A Thus, SEC-1245A should be used to charge battery with AH capacity > 225 AH and SEC- 2425A should be used to charge battery with AH capacity > 125 AH However, when the Mute Mode is selected, the maximum charging capacity is reduced to approximately 1/3.
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Page 20: Remote Panel
Yellow LED “Uo Phase” is lighted – Indicates that the charger is in Stage 2 – Constant Overcharge Voltage, Timed Absorption / Boost Charge Stage ( Uo Phase) and is delivering between 36 A to 4.5 A (SEC-1245A) or between 20 A to 2.5 A (SEC-2425A) •... -
Page 21: Operation
Charging Indicator LED (4) on the front panel is red – Indicates that charger is in Stage 1 - Constant Current, Bulk Charge Mode (I Phase) and is delivering 45 A to 36 A (SEC-1245A) or 25 A to 20 A (SEC-2425A). •... - 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 Stay clear of fan blades, belts, pulleys and other parts that can cause injury to persons...
- 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”) To use as a power supply, first switch off USING THE CHARGER AS A POWER SUPPLY:...
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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 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 – 45 A for SEC-1245A and 25 A for SEC-2425A (the current limit value is the maximum specified charging Amps). Once the load current reaches the current limit value, the current limit circuit is activated and the output voltage drops.
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Page 26: Internal / External Fuse Ratings
When this mode is selected, the maximum charging current will be automatically reduced to 16 to 18 A for SEC-1245A and 5A and 8 to 10 A for SEC-2425A to limit the temperature rise. Hence, the charging time will increase. Switch... -
Page 27: Specifications
SPECIFICATIONS PARAMETER SEC-1245A SEC-2425A Nominal input voltage 120 VAC, 60 Hz 120 VAC, 60 Hz Input voltage range 110 VAC to 125 VAC 110 VAC to 125 VAC Output voltage, VDC - Absorption / boost, Uo* 14.4* V or 14* V or 28.8* V or 28* V or... -
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 “... - 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 SEC1245A / 2425A (Apr. 2006)