Cotek SP-3000-112 High Frequency Pure Sine Wave Inverter User Manual

1. Pengenalan

This manual provides essential information for the safe and efficient operation of your Cotek SP-3000-112 High Frequency Pure Sine Wave Inverter. This device converts 12V DC power from batteries into 120V AC power, suitable for a wide range of electronic appliances. Please read this manual thoroughly before installation and use, and retain it for future reference.

2. Maklumat Keselamatan

Failure to follow these safety instructions may result in electric shock, fire, serious injury, or death. Always exercise caution when working with electrical equipment.

Baca Semua Arahan: Before operating the inverter, read all instructions and cautionary markings on the inverter, the batteries, and all appropriate sections of this manual.
Kakitangan Berkelayakan: Installation and servicing should be performed by qualified personnel familiar with batteries and inverters.
Pengudaraan: Ensure adequate ventilation around the inverter. Do not install in a zero-clearance compartment.
Elakkan Air: Do not expose the inverter to rain, snow, spray, or bilge water.
Pembumian yang betul: Inverter mesti dibumikan dengan betul.
Keselamatan Bateri: Work near lead-acid batteries is dangerous. Batteries generate explosive gases during normal operation. Ensure proper ventilation and wear appropriate personal protective equipment.
Putuskan Kuasa: Always disconnect the battery supply before performing any maintenance or troubleshooting.
Betul Voltage: Pastikan vol input DCtage matches the inverter's specifications (12VDC for this model).

Illustration of a battery with a recycling symbol — Always handle batteries with care and ensure proper disposal.

Hard hat, safety glasses, and gloves on a wooden surface — Wear appropriate personal protective equipment during installation and maintenance.

3. Produk Lebihview

3.1 Ciri-ciri Utama

Output gelombang sinus tulen untuk elektronik sensitif.
Power ON / OFF remote control capability (Green Terminal).
Input & output fully isolated for enhanced safety.
Temperature & load controlled cooling fan for optimal performance.
User-friendly interface with 3-color LED status indicators.
Multiple protection features: Reverse Polarity (Fuse), Under Voltage / Lebih Voltage, Output Protection (Short Circuit / Overload / Over Temperature).
E-13 / UL / CE / FCC approved.

3.2 Komponen Inverter

Cotek SP-3000-112 Pure Sine Wave Inverter, front-side view — **Rajah 1:** Keseluruhannya view of the Cotek SP-3000-112 Pure Sine Wave Inverter. This image shows the robust blue and grey casing, ventilation grilles, and the general form factor of the unit.

Rear panel of the Cotek SP-3000-112 Inverter showing AC outlet and controls — **Rajah 2:** Rear panel of the inverter. Visible components include the hardwire AC output terminal, the main power switch (ON/OFF), LED indicators, DIP switches for settings, and an RJ45 port for remote control.

Front panel of the Cotek SP-3000-112 Inverter showing DC input terminals and cooling fan — **Rajah 3:** Front panel of the inverter. This view highlights the heavy-duty DC input terminals (red for positive, black for negative), the chassis ground connection, and the cooling fan vents.

Close-up of the control panel on the Cotek SP-3000-112 Inverter — **Rajah 4:** Terperinci view of the control panel. This section includes the LED indicators (Power, Fault, Overload), DIP switches for configuration, the RJ45 remote control port, and the green terminal for remote ON/OFF control.

4. Persediaan dan Pemasangan

Proper installation is crucial for the safe and efficient operation of your inverter. Refer to local electrical codes and standards.

4.1 Penempatan

Install the inverter in a dry, well-ventilated area, away from direct sunlight, heat sources, and flammable materials.
Ensure sufficient clearance around the inverter for proper airflow, especially around the cooling fan vents.
Mount the inverter securely on a stable, non-combustible surface.
Avoid areas where dust, moisture, or corrosive fumes are present.

4.2 Pendawaian

All wiring must comply with applicable electrical codes and be performed by a qualified electrician.

Pembumian: Connect the inverter's chassis ground terminal to a reliable earth ground using appropriate gauge wire.
Sambungan Input DC:
- Ensure the battery bank voltage ialah 12VDC.
- Use appropriately sized cables for the DC input to minimize voltage drop and ensure safety. Refer to cable sizing charts based on current and distance.
- Connect the positive (+) terminal of the battery bank to the red (+) terminal on the inverter.
- Connect the negative (-) terminal of the battery bank to the black (-) terminal on the inverter.
- Install a DC-rated fuse or circuit breaker between the battery bank and the inverter's positive terminal, as close to the battery as possible.
Sambungan Output AC:
- Connect your AC loads to the hardwire AC output terminal block.
- Ensure the total load does not exceed the inverter's continuous power rating (3000W).
Kawalan Jauh (Pilihan): Connect the remote control unit to the RJ45 port or use the green terminal for external ON/OFF control if desired.

5. Arahan Operasi

5.1 Menghidupkan/Mematikan

Untuk Menghidupkan: Ensure all DC and AC connections are secure. Flip the main power switch on the inverter's rear panel to the 'ON' position. The Power LED indicator should illuminate.
Untuk Mematikan: Disconnect all AC loads from the inverter. Flip the main power switch to the 'OFF' position.

5.2 Penunjuk LED

The inverter features 3-color LED status indicators on the control panel (refer to Figure 4) to provide operational feedback:

LED hijau: Indicates normal operation and power output.
LED kuning: Indicates a warning condition, such as low battery voltage or high temperature. The inverter may continue to operate but requires attention.
LED Merah: Indicates a fault condition, such as overload, short circuit, or severe over/under voltage. The inverter will shut down to protect itself and connected devices.

5.3 Tetapan Suis DIP

The DIP switches on the control panel allow for customization of certain inverter parameters, such as output voltage, frequency, and power saving mode. Refer to the detailed specifications table (Figure 5) or the product datasheet for specific configurations. Always adjust DIP switches when the inverter is powered off.

6. Penyelenggaraan

Penyelenggaraan berkala memastikan jangka hayat dan operasi inverter anda yang boleh dipercayai.

Pembersihan: Periodically clean the exterior of the inverter with a dry cloth. Ensure ventilation openings are free from dust and debris. Do not use liquid cleaners.
Sambungan: Regularly check all electrical connections (DC input, AC output, ground) for tightness and corrosion. Loose connections can cause overheating and poor performance.
Pemeriksaan Bateri: Inspect batteries for signs of damage, corrosion, or electrolyte leakage. Ensure battery terminals are clean and tight.
Persekitaran: Sahkan bahawa persekitaran operasi kekal dalam julat suhu dan kelembapan yang ditetapkan.

7. Penyelesaian masalah

Bahagian ini menyediakan penyelesaian kepada isu biasa yang mungkin anda hadapi. Jika masalah berterusan, hubungi sokongan pelanggan.

Masalah	Kemungkinan Punca	Penyelesaian
Inverter tidak menyala.	No DC input power; Loose battery connections; Blown DC fuse/breaker; Inverter switch OFF.	Semak bateri voltage; Tighten connections; Replace fuse/reset breaker; Turn inverter switch ON.
Tiada output AC.	Overload; Short circuit; Over-temperature shutdown; Low/High DC input voltage.	Reduce AC load; Check for short circuits in wiring/appliances; Allow inverter to cool; Check battery voltage.
Yellow LED illuminated.	Bateri rendah voltage warning; High temperature warning.	Recharge batteries; Ensure adequate ventilation, reduce load.
Red LED illuminated / Inverter shut down.	Overload; Short circuit; Over-temperature; Under/Over voltage.	Identify and correct the fault (e.g., reduce load, fix short, allow cooling, check battery voltage), then restart the inverter.
Cooling fan runs constantly or loudly.	High internal temperature due to heavy load or poor ventilation.	Reduce load; Improve ventilation around the inverter.

8. Spesifikasi

The following table outlines the technical specifications for the Cotek SP-3000 Series Pure Sine Wave Inverter, specifically for the SP-3000-112 model.

Detailed specifications table for Cotek SP-3000 series inverters — **Rajah 5:** Technical specifications for the Cotek SP-3000 Series, including the SP-3000-112 model.

kategori	Parameter	SP-3000-112
Keluaran	Vol. ACtage	100 / 110 / 115 / 120VAC ±5%
	Kuasa Dinilai	3000W
	Surge Power (1 Sec.)	6000W
	Kuasa Output Maksimum (1 Min)	3450W
	Bentuk Gelombang Output	Gelombang Sinus Tulen (THD<3%)
	Kekerapan	50 / 60 Hz ±0.5%
Input	DC Voltage	12VDC
	Voltage Julat	10.5 ~ 16.5VDC
	Tiada Arus Beban	<3.0A@12VDC
	Mod Penjimatan Kuasa	<0.4A@12VDC
	Kecekapan (Maks.)	90%
Perlindungan	Input Under - Voltage Perlindungan	10.5 ±0.3VDC
	Input Under - Voltage Penggera	11.0 ±0.3VDC
	Input Under - Voltage Pemulihan	12.0 ±0.3VDC
	Input Over - Voltage Perlindungan	16.5 ±0.3VDC
	Input Over - Voltage Pemulihan	14.5 ±0.3VDC
	Lebihan Output	Tutup keluaran voltage, mulakan semula untuk pulih
	Keluaran Pendek	Tutup keluaran voltage, mulakan semula untuk pulih
Persekitaran	Suhu Operasi.	-20°C ~ +40°C
Persekitaran	Suhu Penyimpanan. & Kelembapan	-30°C ~ +70°C, 10 ~ 95% RH
Umum	Dimensi (W x H x D)	442 x 214 x 102 mm (17.4 x 8.4 x 4.0 inci)
	Berat badan	8.2kg (18.1 paun)
	Menyejukkan	Kipas penyejuk terkawal suhu & beban

Mechanical drawings with dimensions for Cotek SP-3000 series inverter — **Rajah 6:** Mechanical drawings providing dimensional information for installation planning.

9. Waranti dan Sokongan

9.1 Maklumat Waranti

The Cotek SP-3000-112 Pure Sine Wave Inverter comes with a Waranti Pengeluar 2 Tahun. Waranti ini melindungi kecacatan pada bahan dan mutu kerja di bawah penggunaan biasa. Sila simpan bukti pembelian anda untuk tuntutan waranti.

9.2 Sokongan Pelanggan

For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact Cotek customer support through their official website or your point of purchase. Provide your model number (SP-3000-112) and a detailed description of the issue to expedite service.

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COTEK SP-3000-112