Kisae DMT1230, Owner'S Manual

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the battery equalization is enabled, the charger will automatically fully charge the battery bank
and will then follow with 1 hour of equalization. Check the battery electrolyte level during the
equalization period. If necessary, refill with distilled water only. All cells should have similar
electrolyte levels. If distilled water is added, batteries must undergo a complete charge cycle. The
charger cannot determine when to terminate the equalization of the battery, a one hour time-out is
set and this is used as a safety feature to require the user to continually re-activate it as
necessary after checking batteries manually. Use the following procedure to setup the charger for
battery equalization. With
“Flooded” setting, press and hold both the “NEXT“ and
“SET“ pushbuttons together for more than 5 seconds to force the charger to go into Equalize
mode and it will start equalizing the flooded battery. Please note the battery mode setting has to
be s
et to ‘Flooded’ battery type in order to have this function activated.
Understanding the Protection Features
De-rating Charging Current: When the charger
’s internal temperature is above 60°C, the
maximum charger current will de-rate to 1/2 of the value, and the A01 warning code is displayed.
The charger will recover automatically back to maximum charging current when its internal
temperature drops to below 58°C.
Over Temperature Shutdown:
When the charger’s internal temperature is above 65°C, the
charger will shut down and E06 error code is displayed. It will recover automatically when its
internal temperature drops to below 40°C.
Minimum House Battery Operating Voltage (Unit Start Up Voltage): The charger is designed to
charge house battery bank batteries with terminal voltage greater than 8.0Vdc on DMT1230, 1250
and 16V on DMT2430.
Note *: In the case of having the unit inoperative because the CH1 house battery voltage is lower than the minimum operating
voltage of 8V / 16V, you do not necessarily need to use an external battery charger to recovery it. Try to use the following
procedure to boost the house battery bank to above the minimum house battery operating voltage:
1) For DMT1230, 1250 using CH 2 (Solar Array/Panel): Turn unit off. Use a proper jumper to temporary connected CH2
“+” to
Ch 1
“+”. Remove the jumper when CH 1 is above the unit start up voltage (8Vdc) and restart the unit.
2) For DMT2430 using CH2 (24V Solar Array/Panel): Turn unit off. Use a proper jumper to temporary connected CH2
“+” to Ch
1
“+”. Remove the jumper when CH 1 is above the unit start up voltage (16Vdc) and restart the unit.
CAUTION : Please notice that using a jumper to connect the positive terminal of CH 1 and CH 2 will stop the control and
regulation functions of the house battery. Therefore, keep this temporary bypass to increase the CH1 house battery voltage just
enough to allow the unit to operate. Then, disconnect the bypass and let the unit work as normal.
Understanding the Display Code
Codes will show on the display when either a function or internal warning / fault, such as high
internal temperature or DC out-of-range is detected and the charger may shut down to protect itself
until the fault has cleared. See table description below for more information.
Code Description
bUL The charger is in Bulk Charging Stage
Bulk or Boost charge:
The battery is charged at full rated output current of the charger until the
battery reaches its final charging voltage, known as its absorption voltage. In this step,
approximately 80% of the battery is recovered as fast as possible.
Abs The Charger is in Absorption Charging Stage
Absorption charge:
With the charger voltage held steady, the remaining 20% is replaced with the
charger allowing the current to taper off as the battery approaches full charge.
FUL The Charger is in Float Charging Stage & Power Supply Mode
Float Charge:
Finally, in the float stage the charger voltage is lowered and held at a constant and
safe predetermined level. This prevents the battery from being overcharged, yet allows the charger
to supply enough current to make up for the self-discharge losses of the battery, while supporting
any additional loads connected to the battery (such as DC lighting and refrigerators). This stage
allows for the charger to be used as a DC power supply.
CHE CH3 Input Voltage Check
This is displayed for 5 sec. every 3 minutes when charging from the CH3 Start-Battery/Alternator
input. During this 5 sec. checking period, the CH3 is internally disconnected to check its voltage
and to decide if it meets the corresponding Under-Voltage-Recovery-Voltage (there are two
possible ones), so to continue charging or not. See Section 6 for more details.
E01 CH3 High Input Voltage Shutdown
This means the unit has detected that the CH3 Start/Alternator input has gone above 16.0V on a
12V input battery or 32.0V on a 24V input battery. This error will clear once the input has dropped
below 15.5V on a 12V battery input or 31.0V on a 24V battery input.
E02 CH3 Low Input Voltage Shutdown
This means the unit has detected that the input from the CH3 Start/Alternator has gone below
10.5V on a 12V battery input or 21.0V on a 24V battery input. This error will clear once the input
has risen above the Start-Up voltage threshold of 13.2V/12.3V on 12V CH3 battery system, or
>26.4/24.6V on 24V CH3 battery system, under Normal/Priority mode respectively.