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MS-400C Series
Smart Multi-Stage Battery Charger
User Manual
Features:
Isolated Output
Ignition Protected
Overload Protected
Shirt Circuit Protected
Over Charging Protected
Over Temperature Protected
Output Polarity Reverse Protected
Sleep Mode and Remote Control functions
Input Voltage: Selectable AC input voltage
-110 Vac at 47-63Hz
-220 Vac at 47-63Hz
Super Regulation:
Work with AC input from 85 to 135 VAC or from 170 to 260 VAC.
AC Line Fuse ( 10 Amps )
General Information
MSE’s smart multi-stage battery charger is an ideal choice for charging lead-acid
wet batteries, maintenance free GEL-type batteries and AGM/CAL batteries.
This smart portable battery charger converts AC power to charge 12V batteries.
An AC input cable is provided for connecting to the mains power. Terminal blocks
are provided for connecting the charger to the batteries.
The battery polarity must be correctly connected to the terminal block to ensure
safe operation of the charger.
Included Parts:
Charger Unit
Charger Cables (positive and negative with alligator clips)
AC Power Cable
Optional Parts
Remote Unit with 5m cable
PANEL DESCRIPTION
Item Name Descriptions
1 AC Selector Select AC input voltage to be 115V (100V~120VAC) or
230V (220~240VAC) Factory Default 240V
2 Battery Type Selector
WET Flooded battery
GEL Gel battery
AGM/CAL AGM or CAL battery
2-1 WET Battery Indicator Light on when battery type selector set on WET position
2-2 GEL Battery Indicator Light on when battery type selector set on GEL position
2-3 AGM/CAL Battery Indicator
Light on when battery type selector set on AGM/CAL
position
3 Charger mode/ Power
supply mode Selector
CHR for charger mode
PWR for power supply mode
3-1 Charger Mode Indicator GREEN LED light on when charger/power selector set on
CHR position
3-2 Power Supply Mode
Indicator
YELLOW LED light on when charger/power selector set on
PWR position
4 Sleep mode Selector SLEEP for sleep mode
NORMAL for normal mode
4-1 Sleep mode Indicator Light on when sleep mode selector set on SLEEP position
4-2 Normal mode Indicator Light on when sleep mode selector set on NORMAL position
5 Remote Selector RMT ON for enable remote function
RMT OFF for disable remote function
5-1 RMT ON Indicator Light on when Remote selector set on RMT ON position
5-2 RMT OFF Indicator Light on when Remote selector set on RMT OFF position
6-1
∫
6-7
Charging Current Indicator
Indicate the charging current, all the lights go on when
charging at maximum current, and decrease
corresponding to charge rate
7 Float Mode Indicator Light on when battery has been charged up to 85%
8 Alarm Indicator
Light on when no battery is connected, battery polarity
reversed, battery voltage less than 4V or a damaged
battery
9 POWER ON Switch Main power switch
10 Remote Jack For remote cable connection
11 Output Terminal Block For output connection.
12 AC Socket For AC power cord connection
Remoter
R1 Brightness adjust VR For adjusting the brightness of remote indicator
R2-1 WET Battery Indicator Light on when battery type selector set on WET position
R2-2 GEL Battery Indicator Light on when battery type selector set on GEL position
R2-3 AGM/CAL Battery Indicator
Light on when battery type selector set on AGM/CAL
position
R3-1 Charger Mode Indicator Light on when charger/power selector set on CHR position
R3-2 Power Supply Mode
Indicator
Light on when charger/power selector set on PWR position
R4 Sleep mode Selector
SLEEP for sleep mode
NORMAL for normal mode
The selector available when RMT ON
R6-1
∫
R6-7
Charging Current Indicator
Indicates the charging current, all lights on when charging
at maximum current, and lights go off one by one from top
to bottom corresponding to the charge rate
R7 Float Mode Indicator Light on when battery has been charged up to 85%
R8 Alarm Indicator
Light on when no battery is connected, battery polarity
reversed, battery voltage less than 4V, or a damaged
battery.
Operation Guide
Connect the AC input cable to the mains power, select the CHR/PWR switch to
CHR and turn on the POWER ON switch, the CHR LED will light up to indicate the
input AC voltage is present. The FLOAT LED will also light up. This means the
battery charger is ready to use. Select WET for wet battery, GEL for gel battery or
select AGM/CAL for AGM/CAL battery.
Connect the battery to the DC output. The charging current indicators from
MAX to MIN will be light up. The battery will charge at the maximum current
temporarily. As the battery becomes charged, the charging current indicators will
gradually reduce from MAX to MIN. When the battery has been charged to
approximately 85%, the FLOAT indicator will light up, and then will be maintained
at constant voltage. The constant charging voltage is pre-set to
13.5V/13.2V/13.8V as the equalize voltage for WET/GEL/AGM battery.
In power supply mode (no battery connected) the FLOAT indicator will be ON,
all the other indicators will be OFF, the output voltage is 12.0V. When on power
supply mode, the charger will not detect the battery polarity and will not detect if
the battery is connected or not. DO NOT CONNECT THE DC OUTPUT TO A
BATTERY ONCE ON POWER SUPPLY MODE. The charger will be damaged if you
connect a battery with reversed polarity when the charger is in power supply
mode.
SLEEP MODE
Select the SLEEP/NORMAL switch to SLEEP, the charging current will be
reduced to 50% of the normal charging current, the fan speed and noise will also
be reduced.
REMOTE CONTROL
Plug the remote cable to the REMOTE jack, and connect the other end of the
remote cable to the battery charger. The indicators on the remote operate the
same as on the charger. Switch the RMT ON/RMT OFF switch to RMT ON, then the
SLEEP mode function can be operated from the remote. The indicator brightness
can be adjusted on the dimmer switch on the remote.
Warranty:
MSE offers a two year limited warranty from the date of manufacture. If there are
any questions, please contact TEL: +886-2-22930159. or visit our web site for
more up-dated details.
www.mse.com.tw
CAUTION
1. Safety instructions are required to be observed at all times.
2. Do not allow water to drip or splash on the charger.
3. Working temperature should between 0˚C and 40˚C
4. Allow at least 10cm of clearance around the charger for airflow.
5. Do not use the charger near flammable materials or in any location which
may accumulate flammable fumes or gases.
6. Unit has a hot surface when in operation, especially at full load condition.
7. Do not reverse the polarity of the connection to the battery.
8. Risk of Electric shock. Do not open unit if connected to AC power. Not
service parts inside. PLEASE CALL Mstronic +886-2-2293-0159.
9. WARRANTY will not apply where the device has been misused, altered,
neglected, improperly installed, or physically damaged, either internally
or externally or damaged from improper use or use in an unsuitable
environment. We shall not be liable for damages, whether direct,
incidental, special, or consequential, or economic loss even though
caused by negligence or other fault.
SPECIFICATION
MODEL MS-200C MS-300C MS-400C
INPUT VOLTAGE
12V DC SYSTEM 170~270VAC 50Hz
CHARGING VOLTAGE
1
st
stage-bulk
charging
Charging 14.2V~14.6V current limited
Charging current indicators MAX to MIN will
be light up
2
nd
stage-absorption The indicators from MAX to MIN will be turn
off one by one
3
rd
stage-float 13.5V/13.2V/13.8V equalize constant
charging
OUTPUT
DC output current 20A 30A 40A
DC output ripple 1% @full load
Line regulation 1% @170~270VAC
Load regulation 5% @output current :no load ~full load
Efficiency 75% at full load operation
PROTECTION
Current limiting YES
OUTPUT SHORT circuit
YES
Battery reverse
polarity Relay
Input EMI filter and
surge YES
Input to output
isolated YES
PHYSICAL
Isolated output
terminal 1
Ventilation Cooling Fan
Weight (KG) 2.0 3.1 3.8
Dimensions (cm)
LxWxH 19 x 24.8 x 9
Specifications subject to change without notice.
CABLE SELECTION GUIDE AND BATTERY SIZE
Model Suggested cable size Wire gauge Suggest battery size
MS-200C 3.0mm2 AWG14 40AH to 200AH
MS-300C 4.0mm2 AWG13 60AH to 300AH
MS-400C 5.0mm2 AWG12 80AH to 400AH
TROUBLE SHOOTING
Status Possible cause Suggest remedy
No DC output or charger
cannot startup
No AC input Check the AC power source.
Over temperature shutdown
Allow charger to cool down
Bad contact of battery
terminal
Check the connection
between charger and
battery
Output short circuit Check output terminal
Battery charging not stable AC input voltage is too low Keep input voltage within
the acceptable input range
Incorrect selection of
battery type
Check battery type
Faulty battery Change battery
Battery cannot charge to
FLOAT
Battery cable connected to
the battery is too thin
Use suggested cable size
Battery is faulty Change battery.
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