Akwụkwọ ntuziaka onye ọrụ Cotek SP-3000-112 High Frequency Pure Sine Wave Inverter

1. Okwu mmalite

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. Ozi nchekwa

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

Gụọ ntuziaka niile: Before operating the inverter, read all instructions and cautionary markings on the inverter, the batteries, and all appropriate sections of this manual.
Ndị ọrụ tozuru oke: Installation and servicing should be performed by qualified personnel familiar with batteries and inverters.
Igwe ikuku: Ensure adequate ventilation around the inverter. Do not install in a zero-clearance compartment.
Zenarị mmiri: Do not expose the inverter to rain, snow, spray, or bilge water.
Ndabere nke ọma: A ghaghị ịtọgbọ inverter ahụ nke ọma.
Nchekwa batrị: Work near lead-acid batteries is dangerous. Batteries generate explosive gases during normal operation. Ensure proper ventilation and wear appropriate personal protective equipment.
Kwụpụ ike: Always disconnect the battery supply before performing any maintenance or troubleshooting.
Nke ziri ezi Voltage: Gbaa mbọ hụ na ntinye 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 — Yiri ihe nchekwa onwe onye kwesịrị ekwesị mgbe ị na-etinye ma na-arụzi ya.

3. Ngwaahịa gafereview

3.1 Atụmatụ

Mmepụta ebili mmiri sine dị ọcha maka ngwa eletrọniki dị nro.
Power ON / OFF remote control capability (Green Terminal).
Input & output fully isolated for enhanced safety.
Temperature & load controlled cooling fan for optimal performance.
Njikọta dị mfe iji yana ihe ngosi ọnọdụ LED agba 3.
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 — **Foto 1:** N'ozuzu 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 — **Foto 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 — **Foto 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 — **Foto 4:** Zuru ezu 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. Ntọala na nwụnye

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

4.1 Ntinye

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 Waya

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

Nda ala: Connect the inverter's chassis ground terminal to a reliable earth ground using appropriate gauge wire.
Njikọ ntinye DC:
- Gbaa mbọ hụ na batrị batrị ahụ ruru ọkwatage bụ 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.
Njikọ Mbupụ 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).
Njikwa anya (Nhọrọ): Connect the remote control unit to the RJ45 port or use the green terminal for external ON/OFF control if desired.

5. Ntuziaka ọrụ

5.1 Gbanyụọ/ gbanyụọ

Iji gbanye: 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.
Iji gbanyụọ: Disconnect all AC loads from the inverter. Flip the main power switch to the 'OFF' position.

5.2 LED egosi

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

Green ikanam: Indicates normal operation and power output.
Ikanam edo edo: Indicates a warning condition, such as low battery voltage or high temperature. The inverter may continue to operate but requires attention.
Red ikanam: 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 Ntọala mgbanwe 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. Nlekọta

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

Nhicha: 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.
Njikọ: Regularly check all electrical connections (DC input, AC output, ground) for tightness and corrosion. Loose connections can cause overheating and poor performance.
Nyocha batrị: Inspect batteries for signs of damage, corrosion, or electrolyte leakage. Ensure battery terminals are clean and tight.
gburugburu: Nyochaa na gburugburu ebe ọrụ ka dị n'ime oke okpomọkụ na iru mmiri akọwapụtara.

7. Nchọpụta nsogbu

Nkebi a na-enye azịza maka nsogbu ndị ị na-enwekarị. Ọ bụrụ na nsogbu ahụ anọgide, kpọtụrụ ndị ọrụ nkwado ndị ahịa.

Nsogbu	Ihe nwere ike ime	Ngwọta
Inverter anaghị agbanye.	No DC input power; Loose battery connections; Blown DC fuse/breaker; Inverter switch OFF.	Lelee batrị voltage; Tighten connections; Replace fuse/reset breaker; Turn inverter switch ON.
Enweghị mmepụta 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.	Obere batrị 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. Nkọwapụta

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

Otu	Oke	SP-3000-112
Mpụta	AC Voltage	100/110/115/120VAC ±5%
	Enyere ike	3000W
	Surge Power (1 Sec.)	6000W
	Maximum Output Power (1 Min)	3450W
	Mmepụta Waveform	Pure Sine Wave (THD<3%)
	Ugboro ugboro	50/60 Hz ± 0.5%
Ntinye	DC Voltage	12VDC
	Voltage Oke	10.5 ~ 16.5VDC
	Enweghị ibu ugbu a	<3.0A@12VDC
	Ụdị Nchekwa Ike	<0.4A@12VDC
	arụmọrụ (Max.)	90%
Nchedo	Input Under - Voltage Nchedo	10.5 ± 0.3VDC
	Input Under - Voltagmkpu	11.0 ± 0.3VDC
	Input Under - Voltage Iweghachite	12.0 ± 0.3VDC
	Input Over - Voltage Nchedo	16.5 ± 0.3VDC
	Input Over - Voltage Iweghachite	14.5 ± 0.3VDC
	Mbufe oke	Mmechi mmechi voltage, restart to recover
	Mmepụta Short	Mmechi mmechi voltage, restart to recover
gburugburu	Okpomọkụ na-arụ ọrụ.	-20°C ~ +40°C
gburugburu	Okpomọkụ nchekwa. & iru mmiri	-30°C ~ +70°C, 10 ~ 95% RH
Izugbe	Akụkụ (W x H x D)	442 x 214 x 102 mm (17.4 x 8.4 x 4.0 inch)
	Ibu	8.2kg (18.1 lbs)
	Na-ajụ oyi	Temperature & load controlled cooling fan

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

9. Akwụkwọ ikike na nkwado

9.1 Ozi akwụkwọ ikike

The Cotek SP-3000-112 Pure Sine Wave Inverter comes with a Akwụkwọ ikike nke onye nrụpụta afọ 2. Akwụkwọ ikike a na-ekpuchi ntụpọ dị na ngwa na arụ ọrụ n'okpuru ojiji nkịtị. Biko dowe ihe akaebe nke ịzụrụ ihe maka akwụkwọ ikike.

9.2 Nkwado ndị ahịa

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