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6) Switch off inverter and remoter to stop working. At that time, the indicator lights in. Both inverter and
remoter are off. The inverter does not consume current of the battery when it is switched off.
②. How to use USB power supply
This model with USB output, can provide stable voltage 5V DC, maximum current 2.4A directly for the
portable device with USB port.
Notice: Before using the USB power supply, please make sure the device can be charged by USB and the
maximum working current is no more than 2.4A.
③. How to use solar charging
Firstly, connect battery properly, then connect the solar panels and product's solar input terminals, make
sure the positive and negative electrode of solar panel is correspondingly connected to the positive and
negative terminal of solar input terminals of inverter, the indicator lights light up while charging . the user
can realize the size of the battery charging voltage, when the "full" indicator lights up, indicating that the
battery is fully charged, product will stop charging automatically to avoid over charge. When the battery
voltage is lower, product will recover to charge automatically.
Notice: It will destroy inverter when solar charging input voltage is too high, so please choose the suitable
solar panel according to the specification table .
8. ABOUT SOFT START TECHNOLOGY
The output voltage rises up from low to normal when the inverter is turned on. This can reduce attack of
high startup currents, which can make startup easier of large inductive loads.
As for the large inductive loads, such as electric tools and the capacitive loads, suggest turning on the
switch of the appliance firstly and later the inverter's. The soft start works.
9. THE OUTPUT WAVE FORM
The output wave form of this inverter is Pure Sine Wave, which is much like the one from utility-supplied
AC electricity, even more purer; pure sine wave is applicable in most of loads, including electrical
equipments, such as Linear Adaptor, switching power supply, transformer, and motor and so on.
Comparing with Modified wave form, for inductive loads such as refrigerator and electric fans, pure sine
wave form can improve its power factor and the battery's efficiency and reduce working noises effectively
from appliances. For capacitive loads such as adapter of lap-top, pure sine wave can lower the rush current
at work and reduce interferences to increase reliability and prolong the life of the product.
10. WORK INSTRUCTIONS
When the inverter is in work condition, the input voltage and output power will be shown on the digital
display screen by turns. Likewise, when the inverter goes into protection, corresponding letters will be also
shown on the screen. Different letters mean the inverter is in different protection conditions.
1. When the input (V) LED is on, the current input voltage is shown.
2. When the output (KW) LED is on, the current output power(KW)is shown.
3. When the output (W) LED is on, the current output power(W)is shown.
4. LO means the inverter is in under voltage protection.
5. HI means the inverter is in over voltage protection.
6. OL means the inverter is in overload protection or short-circuits protection.
7. OH means the inverter is in OVER HEAT protection.
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11. PROTECTION FUNCTION
1. Input under-voltage alarm: When the input DC voltage is lower than 9.8V /19.6V, the buzzer will whistle
intermittently to remind that the inverter will go into the under voltage protection. Pay attention to save
the data if you are using computer.
2. Under voltage protection: The inverter will automatically shut down when the input DC voltage is lower
than 9.5V/19V. The buzzer will whistle continuously and the digital display screen will show LO. Please
turn off the inverter and use it after recharging the battery.
3. Over voltage protection: The inverter will automatically shut down when the input DC voltage is higher
than 16V/32V. The buzzer will whistle continuously and the digital display screen will show HI. Please
turn off the inverter and adjust the input voltage to the admissible range.
4. Overload protection: The inverter will automatically shut down when the load power is higher than the
rated power. The buzzer will whistle continuously and the digital display screen will show OL. Turn off
the inverter and resume to normal operation after taking away the redundant load.
5. Short-circuit protection: The AC output will be automatically shut down when short circuit. And the digital
display screen shows OL.
6. Thermal protection: The unit will be calorific during operation. If the temperature is higher than 65℃, the
inverter will automatically shut down. Then the buzzer will whistle continuously and the digital display
screen shows OH. Please turn off the inverter, and continue using it after the temperature goes back to
normal temperature naturally. Meanwhile find out the factors causing the fault, such as ventilation,
ambient temperature, vent, load power and so on. It can avoid the similar things happen again.
12. HOW TO CHANGE FUSE
1. Firstly disconnect the inverter and external batteries, solar panels, load etc all the connections.
2. Unscrew the side plate screws and pull out the bottom plate.
3. Use pliers to clamp car fuse inside the product, and pull out .
4. Replace the same specifications of the car fuse, and then install the bottom and side panels, and screw
well.
13. TROUBLESHOOTING TIPS
Problem
Reason
Low Input DC Voltage
No output voltage,
High Input DC Voltage
buzzer whistles
continuously
Overload
Over temperature
1. The power switch is off.
No AC output voltage?
2. Poor contact with battery.
The output voltage is
"True RMS" voltage meter is required to
very low
properly measure output voltage of modified
wave inverter
English
Solutions
Low Input DC Voltage
● Do not use it when the battery is charging
● Check the rated voltage of the battery and make sure
that it is in the allowable range of the input voltage.
Reduce the load power
● Cut off the load and let it cool naturally for 10 to 30
minutes.
● Restart it after it resumes to normal temperature. Reduce
the load. avoid blocking the vent and improve the
ventilation condition.
● Press the power switch for 1-2 second to turn it on. it is a
long press type switch.
● Check the cables and make sure they are tightly
connected.
● Test output voltage with a True RMS meter
● Try to maintain the input voltage in the range of rated
power
● Change the battery of the meter then test again.
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