1. Introduction
Thank you for choosing the Foval Pure Sine Wave Power Inverter. This device is designed to convert DC (Direct Current) power from a battery into AC (Alternating Current) power, suitable for operating a wide range of electronic devices and appliances. Featuring pure sine wave output, it provides stable and clean power, making it ideal for sensitive electronics. This manual provides essential information for the safe and efficient operation of your inverter.
2. Safety Instructions
Please read and understand all safety instructions before operating the inverter. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Ensure the rated power of the inverter is higher than the total power of the appliances you intend to connect.
- When connecting multiple devices, always refer to their combined wattage to avoid overloading the inverter.
- For inductive loads (appliances with motors like refrigerators, microwaves, drills, washing machines, water pumps, vacuum cleaners, hair dryers), choose an inverter whose continuous power is 3-7 times higher than the appliance's wattage. Consult us if unsure.
- Use only the standard battery cables provided. Using inadequate cables may prevent full power output. Spare fuses are included for accidental burning of original fuses.
- Never connect the inverter directly to grid power.
- Ensure correct polarity when connecting to the battery (positive to positive, negative to negative). Reverse connection is strictly forbidden.
- Do not overload the inverter.
- Car cigarette lighter sockets can only support power within 150W. Do not exceed this limit when using a car adapter.
- Keep the inverter in a dry, cool, and well-ventilated area. Avoid direct sunlight, heat sources, and moisture.
- Ensure proper grounding of the inverter for safety.
Built-in Safety Protections:
- E-1: Low Input Voltage Protection: Shuts down if battery voltage is too low.
- E-2: High Input Voltage Protection: Shuts down if battery voltage is too high.
- E-3: Over Temperature Protection: Shuts down if internal temperature exceeds safe limits.
- E-4: Overload Protection: Shuts down if connected load exceeds inverter capacity.
- E-5: Short Circuit Protection: Shuts down in case of a short circuit in the output.
- E-6: Repeated Faults Shutdown: Requires manual restart after multiple fault detections.
3. Product Overview
The Foval Pure Sine Wave Inverter is equipped with various ports and features for versatile power conversion.
Key Features:
- Pure Sine Wave Output for sensitive electronics.
- Intelligent Voltage Stabilization.
- High Conversion Efficiency (>90%).
- LED Smart Display for real-time monitoring.
- Dual AC Sockets (EU/US/UK/AU/UN depending on model).
- 5V 3.1A USB Port for charging mobile devices.
- Intelligent Silent Cooling Fan system.
- Remote Control for convenient operation.
Ports and Indicators:
- Front Panel:
- Battery Voltage Display: Shows current DC input voltage.
- Voltage Output Display: Shows current AC output voltage.
- USB Port: 5V 3.1A output for charging USB devices.
- AC Sockets: For connecting AC appliances (EU, US, UK, AU, UN types available).
- ON/OFF/REMOTE Switch: Main power switch and remote control activation.
- RED/GREEN Indicator: Indicates operational status or fault.
- Rear Panel:
- Positive (+) Terminal (Red): Connects to the positive terminal of the battery.
- Negative (-) Terminal (Black): Connects to the negative terminal of the battery.
- Dual Cooling Fans: Automatically activate to dissipate heat.
4. Setup & Installation
Proper setup is crucial for safe and efficient operation.
- Placement: Choose a dry, cool, and well-ventilated location for the inverter. Ensure there is sufficient space around the unit for airflow, especially around the cooling fans. Avoid placing it near flammable materials, direct sunlight, or heat sources.
- Battery Connection:
- Ensure the inverter is switched OFF before making any connections.
- Connect the RED battery clip cable to the Positive (+) terminal of the inverter and the Positive (+) terminal of your 12V or 24V DC battery.
- Connect the BLACK battery clip cable to the Negative (-) terminal of the inverter and the Negative (-) terminal of your battery.
- Ensure all connections are tight and secure to prevent loose connections, which can cause overheating.
- Grounding: The inverter is equipped with a ground wire connection for your safety. Connect the inverter's ground terminal to a proper earth ground. This is essential to prevent electric shock in case of a fault.
Ensure proper grounding and secure cable connections. - Initial Check: Double-check all connections before proceeding.
5. Operation
- Power On: After ensuring all connections are secure, switch the inverter's ON/OFF switch to the 'ON' position. The LED indicator should turn green, and the LED displays will show the battery voltage and output voltage.
- Frequency Selection: If your model has a frequency selection switch (50Hz/60Hz), ensure it is set to match the frequency requirements of your appliances. This switch is typically located near the AC outlets.
Selectable frequency switch for 50Hz or 60Hz output. - Connecting Appliances: Plug your AC appliances into the inverter's AC sockets. For USB charging, connect your devices to the USB port. The inverter supports charging multiple electronics simultaneously within its power limits.
Connect multiple devices to the AC sockets and USB port. - Monitoring: Regularly check the LED displays for battery voltage and output voltage. If the battery voltage drops too low, the inverter will alarm and eventually shut down to protect the battery.
- Remote Control: Use the provided remote control to conveniently switch the inverter ON or OFF from a distance.
- Cooling Fans: The intelligent cooling fans will automatically activate when the internal temperature reaches approximately 48°C to maintain optimal operating temperature. They are designed for low-noise operation.
Intelligent silent cooling fans activate automatically. - Power Off: When finished, switch off all connected appliances, then switch the inverter's ON/OFF switch to the 'OFF' position.
6. Troubleshooting
The inverter is equipped with multiple protection features. If the inverter shuts down or displays an error, refer to the following table:
| Error Code/Symptom | Possible Cause | Solution |
|---|---|---|
| E-1: Low Input Voltage | Battery voltage is too low. | Recharge or replace the battery. |
| E-2: High Input Voltage | Battery voltage is too high. | Check battery charging system; ensure correct battery type. |
| E-3: Over Temperature | Inverter is overheating. | Reduce load, ensure proper ventilation, clear fan vents. Allow to cool down. |
| E-4: Overload | Connected load exceeds inverter's continuous power. | Disconnect some appliances to reduce the load. Ensure total wattage is within limits. |
| E-5: Short Circuit | Short circuit detected in output or connected device. | Disconnect all appliances and check for faulty wiring or devices. |
| E-6: Repeated Faults Shutdown | Multiple faults detected, requiring manual reset. | Address the underlying fault (E-1 to E-5), then turn the inverter OFF and ON again to reset. |
| No Output | Inverter not turned on, loose connections, or internal fault. | Check ON/OFF switch, verify battery connections, ensure battery is charged. |
7. Specifications
| Feature | Specification |
|---|---|
| Output Waveform | Pure Sine Wave |
| Continuous Power | 2500W / 4000W (Model Dependent) |
| Peak Output Power | 5000W / 8000W (Model Dependent) |
| Frequency | 50Hz ± 2Hz or 60Hz ± 2Hz (Selectable) |
| No Load Current Draw | <0.8 Amps |
| Conversion Efficiency | >90% |
| Input DC Voltage | 12V / 24V (Model Dependent) |
| USB Output | 5V 3.1A |
| DC Voltage Range | 10.5V-15.5V (for 12V input) / 18V-30V (for 24V input) |
| Output AC Voltage | 110V (US Socket) / 220V (EU Socket) |
| AC Voltage Range | 110-130V / 220V-240V |
| Low Voltage Alarm | 10DC ± 0.5V / 19DC ± 0.5V |
| Low Voltage Shut Down | 9.5DC ± 0.5V / 18DC ± 0.5V |
| Over Load Protection | Shut Off Output Automatically |
| Over Voltage Shut Down | 15.5V / 30.5V |
| Over Thermal Protection | Shut Off Output Automatically |
| Fuses | Short Circuit Protection |
| Start | Soft Start |
| Material | Aluminum Alloy |
8. Maintenance
- Cleaning: Keep the inverter clean and free from dust and debris. Use a dry cloth to wipe the exterior. Do not use liquid cleaners.
- Ventilation: Regularly check that the cooling fan vents are not obstructed. Ensure adequate airflow around the inverter at all times.
- Connections: Periodically inspect all electrical connections (battery cables, appliance plugs) to ensure they are tight and free from corrosion.
- Storage: If storing the inverter for an extended period, disconnect it from the battery and store it in a cool, dry place.
9. User Tips
- Calculate Total Wattage: Before connecting appliances, sum their individual wattages to ensure the total load does not exceed the inverter's continuous power rating.
- Battery Capacity: For longer run times, consider using a higher capacity battery. The inverter's performance is directly related to the battery's health and charge level.
- Inductive Loads: Remember that appliances with motors (inductive loads) require a much higher starting (surge) power than their continuous running power. Always factor this into your calculations and choose an inverter with sufficient peak power.
- Cable Length: Keep battery cables as short as possible to minimize power loss and maximize efficiency.
10. Warranty & Support
For warranty information, technical support, or service inquiries, please refer to the seller's contact information or the official product page where you purchased this item. Keep your purchase receipt as proof of purchase.
