Pure Sine Wave Inverter USER MANUAL
DC-AC Power Inverter
Special Features:
Input & output fully isolation
Input Protections: Reverse Polarity(Fuse)/ Under Voltage/ Over Voltage
Output Protection: Short Circuit / Overload /Over Temperature
Load 120~150%(3min.);200%（3sec)
Power ON-OFF switch
USB:5V,500mA(Optional)
Protection: LED Indicator
12V or 24V or 48VDC input
Output waveform: Pure sine wave
Fuse: Built-in
Frequency: 50Hz±1%,60±1%
CE and RoHS Approved
Thank you for purchasing ours Pure Sine Wave Inverter, Please Carefully read,
understand and comply with all instructions before using.
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Table of contents
1. Introduction………………………………………………………….3
1.1 What’s an inverter…………………………………………….3
1.2 Pure Sine Wave Inverter……………………………………. .3
2. Main Components………………………………………………...3-5
2.1 Front panel…………………………………………………….3
2.2 Rear panel………………………………………………...…...4
3. How to Use Inverter….…………………………………………...5-8
3.1 Load consideration………………………………………….…5
3.2 Configuring the Battery Bank …………………………...…...6
3.3 Battery wiring examples………………………………….……6
3.4 Placement of the inverter…………………………….………..7
3.5 Mounting position of the inverter…………………….………7
3.6 Getting Connected……………………………………….…….8
4. Important Safety Instructions………………………………………8
5. Protection Feature………………………………………………….9
6. Troubleshooting Reference……………………………...…........9-11
7. Main Specifications………………………………………...............12
8. Maintenance……………………………………………………..…13
9. Warranty……………………………………………………….…..13
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1. Introduction
1.1 What is an Inverter?
Power inverter is an electronic device that convert DC(Direct Current) battery power
to standard AC(Alternating Current) power. DC is the power that is produced by
battery while AC is the standard power needed to run electrical equipment. A power
inverter does the opposite of a rectifier and is used in places and situations where AC
power is not available.
1.2 Pure Sine Wave Inverter
If you want to run your equipment exactly to the manufacturer’s specifications,
choose a pure sine wave inverter. With pure sine wave, motor loads start easier and
run cooler. Some equipment only operate properly with pure sine wave inverter, such
as laser printers, variable speed motors and digital clocks.
2. Main Components
2.1 Front Panel
The front panel view shows the inverter’s ON/OFF Switch, AC Output
Receptacle, LED Indicator Light, Vent Outlet
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A. ON/OFF Switch.
This switch controls ON/OFF operation of the inverter.
B. LED Indicator Light: Fault, Power
a) Fault: Turns Red shows fault, reference to Troubleshooting
b) Power: This light will illuminate continuously whenever connected
equipment is receiving battery-supplied, inverted AC power.
C. AC Output Receptacle: For application demands of different geographic
areas all over the world, there are many different kinds of optional AC
receptacle to choose from.
D. Vent Outlet.
To decrease the temperature of the inverter.
E. Chassis Ground
Properly grounds the Inverter to vehicle grounding system or to earth ground.
F. USB: 5V 2.1A
Seek professional assistance if you are unfamiliar with electrical wiring.
2.2 Rear Panel
The rear panel view shows the inverter’s Cooling fan, DC Battery Terminals,
Fuse, Chassis Ground
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DC Battery Terminals
Connect the inverter to battery or other power sources.
Negative (-) and Positive (+) DC terminals should be kept insulated to protect
from accidental short circuits.
a) Connect the black cable to the black post marked
(-) on the back of the
inverter. Connect the other end to the negative terminal on the battery.
b) Connect the red cable to the red post marked
(+) on the back of the
inverter.
Connect the other end to the positive terminal on the battery.
If you connect the cables to the incorrect terminals, you will reverse the
polarity and damage the inverter.
PROHIBITED REVERSE POLARITY.
DAMAGE CAUSED BY REVERSE POLARITY WILL NOT BE
COVERED BY WARRANTY.
3. How To Use Inverter
3.1 Load consideration
When an appliance with a motor starts, it requires a momentary surge of power. This
surge of power is the “starting load” or “peak load”. Once started, the appliance
requires less power to continue to operate. This is known as the “continuous load”. It
is important to know the starting loads and the continuous loads of the appliances that
are to be powered by the inverter.
Appliance power is rated in watts. This information is usually stamped or printed on
most appliances and equipment. In some cases, a tool will be rated in amperes. To
convert from amps to watts, multiply:
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Amps x AC voltage = Watts
This formula yields an approximation of the continuous wattage load of that
appliance.
The startup load of an appliance is a major factor of whether this inverter can power
it.
Startup load is momentary. With many appliances, it is approximately twice the
continuous load, but some appliance startup loads can be as high as eight times the
continuous load.
To determine if an appliance or tool will operate with this inverter, run a test. This
inverter will automatically shut down in the event of an output overload, so there is
no danger of damaging either the inverter or the equipment. When lit, a red LED
indicator and Buzzer signals a fault.
3.2 Configuring the Battery Bank
To determine the minimum battery ampere-hour rating that you will need to operate
appliances from the inverter and any DC appliances powered by the battery bank,
follow these steps:
1. List the maximum continuous wattage that the inverter has to supply.
2. Estimate the number of hours the appliances will be in use between battery
recharges. This will vary depending on appliances. For example, a typical home-use
coffee maker draws 500 watts during its brew time of 5 minutes. It maintains the
temperature of the pot, requiring 100 watts. Typical use of a microwave oven is only
for a few minutes. Some longer operating time appliances are lamps, TVs, computers
and refrigerator/freezers.
Determine the total watt-hours of energy needed. This is done by multiplying average
power consumption in watts by hours of run time. For example: 500 watts for 10
hours = 5000 watt hours. To get an estimate of the maximum current (in amps) that a
battery bank must be capable of delivering to the inverter, divide the load watts by ten.
For example a 500 watt appliance load will need 50 amps at 12 volts DC. Using the
500 watts (or 50 amps) for 10 hours example as above, then 50 amps is needed for 10
hours. This provides us with the basic amp-hours (AH) of battery that is required. Ten
hours at 50 amps equals 500 amp-hours (AH). There are additional factors that
determine actual run time. These include:
•AC appliance load and time in use (basic AH).
• Cable gauge and length (cable losses).
• Charge level of the batteries (between use, chargers have to be able to fully charge the batteries).
• Temperature of the batteries (colder batteries provide fewer amps).
• Age and condition of the batteries (older batteries lose AH capacity).
• Compliance with turning off unnecessary AC loads.
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• Use of DC appliances and compliance with turning off unnecessary DC loads.
3.3 Battery Wiring Examples
In renewable energy systems, batteries are connected to each other in one of three
ways:
• Series (voltage increases, amperage stays the same as a single battery)
• Parallel (voltage stays the same as a single battery, amperage increases)
• Series/Parallel (both voltage and amperage increase)
3.4 Placement of inverter
The location where to install inverter must be:
A. Dry: Do not allow water to drip or splash onto it.
B. Cool: Ambient air temperature should be between 0º C and 40º C - ideally between
15º C and 25º.Do not place the inverter on or near a heating vent or any piece of
equipment which is generating heat above room temperature. Do not place the
inverter in direct sunlight unnecessarily.
C. Ventilated: Allow at least one inch of clearance around the unit for air flow. Do not
place items on or over the inverter during operation. Make sure that air is allowed to
circulate freely around the unit. A fan is helpful in the case where the inverter is
operating at maximum
D. Safe: Do not install the inverter in the same compartment as the batteries or in any
compartment where flammable liquids or fumes may be or may become present.
E. Dust Do not install the inverter in a dusty environments. The dust can be inhaled
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into the unit when the cooling fan is working.
F. Close to batteries: Avoid excessive cable lengths. Do not install the inverter in the
same compartment as batteries.
3.5 Mounting position of the inverter
The inverter may be mounted horizontally on the top of a horizontal surface or under
a horizontal surface. The inverter may be mounted on a vertical surface only
horizontally.
3.6 Connections
Follow the connection sequence described below.
Step 1 Ensure that the ON/OFF switch on the Inverter is in the OFF position. If the
power source is a DC power supply, switch it OFF as well.
Step 2 Connect inverter to power source.
Connect the DC cables to the DC battery terminals on the rear panel of the inverter. The red
terminal is
positive (+)
and the black terminal is negative
(-).
Step 3 Connect inverter to appliances.
Make sure the load power within the rated power of inverter and the start power should not
exceed the peak power of the inverter. When having the inverter connected with appliances and a
power supply, switch on the inverter and appliances. If you are operating several loads from the
power inverter, turn them on separately after the inverter has been turned on. This will ensure that
the power inverter does not have to deliver the starting currents for all the loads at once.
4. Important Safety Instructions
Incorrect installation and misuse of the inverter may result in danger to the user or hazardous
conditions.
1. Do not attempt to connect the any other power source, including any AC power source .
2. Make sure the opening to the ventilation fan and vent holes are not blocked.
3. Avoid pulling on the cords and cables. Always grip plugs firmly when unplugging from
power source and when disconnecting cables.
4. To avoid electrical hazard, be sure to unplug the inverter from its external power source
before inserting the AC plug.
5. For indoor use only. Avoid exposure to external heat sources; direct, prolonged sunlight; dust;
corrosive chemicals; and moisture.
6. It is normal for inverters to become warm during use. Avoid touching the device during use.
Avoid placing in direct sunlight or near heat-sensitive materials.
7. Do not drop or subject the inverter to undue shock.
8. Do not place anything on top of the inverter.
9. Always with the supplied cables and connectors as shown. Use of cables, connectors, or
accessories not supplied with this product constitutes misuse and may result in injury or
damage.
10. Do not attempt to service or dissemble. The unit is not user-serviceable. Attempting to
disassemble or service the unit can result in electrical hazard, including death from exposure
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to high voltage. If you experience problems with the unit, discontinue use and Contact
Technician.
11. When cleaning the inverter, please switch off power(unplug the inverter).Carefully clean with
dry cloth. Do not use wet cloth or cleanser.
12. Disconnect all AC and DC side connections before working on any circuits associated with
the inverter. Turning the ON/OFF switch on the inverter to off position may not entirely
remove dangerous voltage.
13. Keep away from children.
5. Protection Feature
Inverter is equipped with numerous protection features to ensure safe operation.
Input Low Voltage Protection:
A: When battery voltage is below 10.5V±0.5V(for 12V input inverter)/21V±1V(for 24V input
inverter)/ 42V±2V(for 48V input inverter), the inverter will alarm,which indicates DC power
supply voltage is descending and batteries need to recharge.
B: When input voltage is below 10V±0.5V(for 12V input inverter)/20V±1V(for 24V input
inverter)/ 40. V±2V(for 48V input inverter), AC output will be automatically shut off.
Input Over Voltage Protection
When input voltage reach 15.5V±0.5V (for 12V input inverter)/31V±1V (for 24V input
inverter)/62V±02V (for 48V input inverter), the AC output will be shut off automatically.
Short Circuit Protection
When short circuits occur, red light constantly flashing, output will be shut off.
Overload Protection
When overloads occur, red light constantly flashing, output will be shut off.
Reverse polarity protection:Fuses or Mosfet
a. via Fuses:When battery terminals are reverse connected, fuse will be burned to
protect appliances.
b. Via Mosfet(optional): When battery terminals are reverse connected, the inverter
won’t work unit correct connect.
Over Temperature Protection
When heat sink temperature exceeds 45ºC, the inner cooling fan will automatically turn on to
cool the inverter; when less than 30ºC,the inner cooling fan will automatically shut off.
When inner temperature exceeds 75ºC, AC output will automatically shut off.
6.Troubleshooting Reference
Acoustics buzzer alarms
When applying the inverter to acoustics devices, some inferior acoustics devices will
buzz, this is because the output wave from the inverter is modified sine wave inverter.
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TV Interference
You can get minimum interference through use of a filter. On some occasions, when
the interference of every weak signals becomes too obvious, you can try the
following:
Place the inverter far from the TV and TV antenna.
Try to change the direction of TV signals cable and TV antenna to reduce the
interference to minimum.
Use screen cable antenna of highly quality.
SYMPTOM
POSSIBLE CAUSE
SOLUTIONS
ON/OFF switch is switched on,
LED does not light. Buzzer is
off. There is no AC voltage
There is no voltage at the DC
input Terminals
1. Check the continuity of the
battery input circuit
2. Check that the battery fuse is
intact. Replace if blown
3. Check that all connections in
the battery input circuit are tight
Polarity of the input voltage has
been reversed that has blown the
DC side fuses.
( Note: Reverse polarity may
cause permanent damage)
Correct the polarity of the input
connections and replace the
fuse.
If the unit does not work after
replacing the fuse, the unit has
been permanently damaged
Call Technical Support
Buzzer alarm is sounded. There
is no AC voltage.
1.Loose AC output connections.
2.Short circuit of AC Output
wiring.
1.Tighten AC output connections
2.Check AC wiring for short
circuit.
Voltage at the DC input
terminals reads below
10.5±0.5VDC(12V
version),21±1VDC(24V
version),42.2±2VDC(48V
version).
1.Check that the battery is fully
charged. Recharge, if low
2. Check that the battery cables are
thick enough to carry the required
current over the required length. Use
thicker cables, if required
3. Tighten connections of the battery
input circuit
Voltage at the DC input
terminals reads below
10±0.5VDC(12V version)
20±1VDC(24V version)
40±2VDC(48V version)
1.Check that the battery is fully
charged. Recharge, if low
2. Check that the battery cables
are thick enough to carry the
required current over the
required length. Use thicker
cables, if required
3. Tighten connections of the
battery input circuit.
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Higher input DC voltage than
15.5±0.5VDC(12V version),
31±1VDC(24V version),
62±2VDC(48V version)
1. Check that the voltage at the
DC input terminals is more than
15V/30V/60V DC.
2. Ensure that the maximum
charging voltage of the battery
charger /alternator / solar
charge controller is below 15
V/30V/60VDC
3. Ensure that an un-regulated
solar panel or wind turbine is not
used to charge a battery
System overheating
1. Check that the fan is working.
If not, the fan / fan control circuit
may be defective Call Technical
Support
2. If the fan is working, check
that the ventilation slots on the
suction side and the openings
on the discharge side of the fan
are not obstructed
3. If the fan is working and the
openings are not obstructed,
check that enough cool
replacement air is available.
Also check that the ambient air
temperature is less than 45º C
4. Reduce the load to reduce the
heating effect
5. After the cause of overheating
is removed and the unit cools
down, it will reset automatically
The loads is 200% higher than
rated power.
1. Disconnect the load
2. Reduce the load
3.Cool the unit.
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7. Specifications
Item
Model
300-S
500-S
600-S
1000-S
1200-S
1500-S
O
U
T
P
U
T
Rated Power
300W
500W
600W
1000W
1200W
1500W
Surge Power
Load 120~150%(3min.);200%（3sec)
AC Voltage
100V/110V/115V/120Vac or 220V/230V/240Vac
AC output regulation: 10%
Frequency:50Hz±1%,60±1%,50/60Hz(Optional),switch by manual
Waveform
Pure Sine Wave Inverter(THD<3%) at rated input voltage
Protection
AC short circuit, Overload, Over temperature
I
N
P
U
T
Bat. Voltage Range
10.5V-15V(12V version) 21V-30V(24V version) 42V-60V(48V version)
Efficiency
More than 85%
Protection
Battery Low Alarm, Battery Low Shutdown, Battery Polarity Reverse by Fuse
Battery Types
Open & sealed lead acid battery
Item
Model
2000-S
2500-S
3000-S
4000-S
O
U
T
P
U
T
Rated Power
2000W
2500W
3000W
4000W
Surge Power
Load 120~150%(3min.);200%（3sec)
AC Voltage
100V/110V/115V/120Vac or 220V/230V/240Vac
AC output regulation: 10%
Frequency:50Hz±1%,60±1%,50/60Hz(Optional),switch by manual
Waveform
Pure Sine Wave Inverter(THD<3%) at rated input voltage
Protection
AC short circuit, Overload, Over temperature
I
N
P
U
T
Bat. Voltage Range
10.5V-15V(12V version) 21V-30V(24V version) 42V-60V(48V version)
Efficiency
More than 85%
Protection
Battery Low Alarm, Battery Low Shutdown, Battery Polarity Reverse by Fuse
Battery Types
Open & sealed lead acid battery
AC Out Receptacle
USA, UK, Germany, France, Australia, Brazil, Italy, South Africa, etc.
Cooling
Temperature and Load Controlled
Environment
Operating
Temperature
-15 ° C to 40° C
Storage
Temperature
-40 to 85°C
Relative
Humidity
20% ~ 90% RH non-condensing
Note: *The specifications are subject to change without prior notice for further
improvement of products.
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8. Maintenance
To keep your inverter operating properly, there is very little maintenance required.
You should clean the exterior periodically with a dry cloth to prevent accumulation of
dust and dirt. At the same time, tighten the screws on the DC input terminals.
9. Warranty
We guarantee this product against defects in materials and workmanship for a period
of 24 months from the date of retail purchase by end user.
This warranty will be considered void if the unit has been misused, altered, or
accidentally damaged. We are not liable for anything that occurs as a result of the
user’s fault.
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