Incwadi Yomsebenzisi ye-Cotek SP-3000-112 High Frequency Pure Sine Wave Inverter

1. Isingeniso

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. Ulwazi Lokuphepha

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

Funda Yonke Imiyalelo: Before operating the inverter, read all instructions and cautionary markings on the inverter, the batteries, and all appropriate sections of this manual.
Abasebenzi Abafanelekile: Installation and servicing should be performed by qualified personnel familiar with batteries and inverters.
Ukungenisa umoya: Ensure adequate ventilation around the inverter. Do not install in a zero-clearance compartment.
Gwema Amanzi: Do not expose the inverter to rain, snow, spray, or bilge water.
Isisekelo Esifanelekile: The inverter must be properly grounded.
Ukuphepha Kwebhethri: Work near lead-acid batteries is dangerous. Batteries generate explosive gases during normal operation. Ensure proper ventilation and wear appropriate personal protective equipment.
Nqamula Amandla: Always disconnect the battery supply before performing any maintenance or troubleshooting.
Kulungile Voltage: Qinisekisa ukufakwa kwe-DC voltage 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 — Gqoka imishini yokuzivikela efanele ngesikhathi sokufakwa nokulungiswa.

3. Umkhiqizo Uphelileview

3.1 Izici ezibalulekile

Pure sine wave output for sensitive electronics.
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 / Over Voltage, Output Protection (Short Circuit / Overload / Over Temperature).
E-13 / UL / CE / FCC approved.

3.2 Inverter Components

Cotek SP-3000-112 Pure Sine Wave Inverter, front-side view — **Umfanekiso 1:** Sekukonke 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 — **Umfanekiso 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 — **Umfanekiso 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 — **Umfanekiso 4:** Okuningiliziwe 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. Ukusetha nokufakwa

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

4.1 Ukubekwa

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.

Izintambo

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

Ukubeka phansi: Connect the inverter's chassis ground terminal to a reliable earth ground using appropriate gauge wire.
Uxhumano Lokufaka lwe-DC:
- Ensure the battery bank voltage 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.
Ukuxhumeka Kokukhipha kwe-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).
Isilawuli kude (Uma uthanda): Connect the remote control unit to the RJ45 port or use the green terminal for external ON/OFF control if desired.

5. Iziqondiso Zokusebenza

5.1 Ukuvula / Ukuvula

Ukuvula: 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.
Ukucisha: Disconnect all AC loads from the inverter. Flip the main power switch to the 'OFF' position.

5.2 Izinkomba ze-LED

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

I-LED eluhlaza: Indicates normal operation and power output.
I-LED Ephuzi: Indicates a warning condition, such as low battery voltage or high temperature. The inverter may continue to operate but requires attention.
I-LED Ebomvu: 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 Izilungiselelo zokushintsha kwe-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. Isondlo

Regular maintenance ensures the longevity and reliable operation of your inverter.

Ukuhlanza: Hlanza ingaphandle le-inverter ngezikhathi ezithile ngendwangu eyomile. Qinisekisa ukuthi izikhala zokungenisa umoya azinawo uthuli kanye nemfucumfucu. Ungasebenzisi izihlanzi eziwuketshezi.
Izixhumanisi: Regularly check all electrical connections (DC input, AC output, ground) for tightness and corrosion. Loose connections can cause overheating and poor performance.
Ukuhlolwa kwebhethri: Inspect batteries for signs of damage, corrosion, or electrolyte leakage. Ensure battery terminals are clean and tight.
Imvelo: Qinisekisa ukuthi indawo yokusebenza ihlala ngaphakathi kwezinga lokushisa elishiwo kanye nomswakama.

7. Ukuxazulula izinkinga

This section provides solutions to common issues you might encounter. If the problem persists, contact customer support.

Inkinga	Imbangela Engenzeka	Isixazululo
I-inverter ayivuli.	No DC input power; Loose battery connections; Blown DC fuse/breaker; Inverter switch OFF.	Hlola ivolumu yebhethritage; Tighten connections; Replace fuse/reset breaker; Turn inverter switch ON.
Akukho okukhipha i-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.	Ivolumu yebhethri ephansitage 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. Imininingwane

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 — **Umfanekiso 5:** Technical specifications for the Cotek SP-3000 Series, including the SP-3000-112 model.

Isigaba	Ipharamitha	I-SP-3000-112
Okukhiphayo	I-AC Voltage	100 / 110 / 115 / 120VAC ±5%
	Amandla Alinganiselwe	3000W
	Surge Power (1 Sec.)	6000W
	Amandla Okukhipha Amakhulu (1 iminithi)	3450W
	I-Waveform ephumayo	Pure Sine Wave (THD<3%)
	Imvamisa	50 / 60 Hz ±0.5%
Okokufaka	I-DC Voltage	12VDC
	Voltage Ibanga	10.5 ~ 16.5VDC
	Awukho Umthwalo Wamanje	<3.0A@12VDC
	Imodi Yokonga Amandla	<0.4A@12VDC
	Ukusebenza kahle (Ubuningi.)	90%
Ukuvikelwa	Input Under - Voltage Ukuvikelwa	10.5 ±0.3VDC
	Input Under - Voltage I-alamu	11.0 ±0.3VDC
	Input Under - Voltage Ukubuyisela	12.0 ±0.3VDC
	Input Over - Voltage Ukuvikelwa	16.5 ±0.3VDC
	Input Over - Voltage Ukubuyisela	14.5 ±0.3VDC
	Ukugcwala Okuphumayo	Vala shaqa okukhiphayo voltage, qala kabusha ukuze ululame
	Okukhiphayo kufushane	Vala shaqa okukhiphayo voltage, qala kabusha ukuze ululame
Imvelo	ITemp Esebenzayo.	-20°C ~ +40°C
Imvelo	Isikhathi Sokugcina. & Nomswakama	-30°C ~ +70°C, 10 ~ 95% RH
Okujwayelekile	Ubukhulu (W x H x D)	442 x 214 x 102 mm (17.4 x 8.4 x 4.0 amayintshi)
	Isisindo	8.2kg (18.1 lbs)
	Ukupholisa	Izinga lokushisa nomthwalo olawulwayo wokupholisa ifeni

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

9. Iwaranti kanye Nokusekela

9.1 Ulwazi Lwewaranti

The Cotek SP-3000-112 Pure Sine Wave Inverter comes with a Iwaranti Yonyaka Ongu-2 Yomkhiqizi. Lesi siqinisekiso sihlanganisa amaphutha ezintweni zokwakha kanye nokusebenza ngaphansi kokusetshenziswa okuvamile. Sicela ugcine ubufakazi bakho bokuthenga izimangalo zewaranti.

9.2 Ukwesekwa Kwamakhasimende

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