DIP Switch Setting for SEC-2425A
S1 S2 Float Boost Battery Type Charging Stages
Stand-alone charging
OFF * ON * 27 V * 28.8 V * Flooded / AGM * 3 Stages (Stages 1, 2, 3)
ON OFF 27 V 28.0 V Gel Cell 3 Stages (Stages 1, 2, 3)
Charging loaded battery
or
Charging two banks and the batteries in the two banks are in dissimilar discharged
condition
OFF OFF 27 V 27.0 V Flooded / AGM / Gel 2 Stages (Stages 1, 3)
* Factory pre set in this position
Caution!
Please ensure that position S1- ON and
S2 – ON is never selected
SELECTING THE TIME FOR STAGE 2 - CONSTANT OVERCHARGE VOLT-
AGE, 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).
Select the times as follows:
Time Dip Switch S3 Dip Switch S4 Type of Battery
4 hours* Off* On* Flooded / wet cell
8 hours On Off Gel Cell & AGM
Disable Off Off -
* Factory pre set in this position
Caution!
Please ensure that position S3- ON and
S4 – ON is never selected
MUTE MODE / REDUCTION OF MAXIMUM CHARGING CAPACITY
Switching off the cooling fan to eliminate fan noise for quiet operation
The cooling fan automatically switches on when the charger enters Stage 2. The fan will
generate noise when it is on. If a quiet operation is required, the fan can be temporarily
disabled by pressing the “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.
When the Mute Mode function is selected, a Green LED (8) located on the bottom left
corner of the front panel of the unit is lighted
Page 17
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