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

1. Mawu Oyamba

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. Zambiri Zachitetezo

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

Werengani Malangizo Onse: Before operating the inverter, read all instructions and cautionary markings on the inverter, the batteries, and all appropriate sections of this manual.
Oyenerera: Installation and servicing should be performed by qualified personnel familiar with batteries and inverters.
Mpweya wabwino: Ensure adequate ventilation around the inverter. Do not install in a zero-clearance compartment.
Pewani Madzi: Do not expose the inverter to rain, snow, spray, or bilge water.
Kuyika Moyenera: The inverter must be properly grounded.
Chitetezo cha Battery: Work near lead-acid batteries is dangerous. Batteries generate explosive gases during normal operation. Ensure proper ventilation and wear appropriate personal protective equipment.
Chotsani Mphamvu: Always disconnect the battery supply before performing any maintenance or troubleshooting.
Voltage: Onetsetsani kuti voliyumu ya DC ikulowatage 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. Zamalonda Zathaview

3.1 Zofunika Kwambiri

Chotulutsa cha mafunde oyera a sine chamagetsi osavuta kugwiritsa ntchito.
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 / Kupitilira 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 — **Chithunzi 1:** Zonse 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 — **Chithunzi 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 — **Chithunzi 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 — **Chithunzi 4:** Tsatanetsatane 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. Kukhazikitsa ndi Kuyika

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

4.1 Kuyika

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 Kulumikizana

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

Kuyika pansi: Connect the inverter's chassis ground terminal to a reliable earth ground using appropriate gauge wire.
Kulumikiza kwa DC:
- Ensure the battery bank voltagndi 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.
Kulumikiza kwa AC Output:
- 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).
Kuwongolera Kutali (Ngati mukufuna): Connect the remote control unit to the RJ45 port or use the green terminal for external ON/OFF control if desired.

5. Malangizo Ogwiritsira Ntchito

5.1 Kuyatsa/Kuzimitsa

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

5.2 Zizindikiro za LED

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

LED Yobiriwira: Indicates normal operation and power output.
Yellow LED: Indicates a warning condition, such as low battery voltage or high temperature. The inverter may continue to operate but requires attention.
LED Yofiira: 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 DIP Switch Settings

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. Kusamalira

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

Kuyeretsa: Tsukani kunja kwa inverter nthawi ndi nthawi ndi nsalu youma. Onetsetsani kuti malo opumira mpweya alibe fumbi ndi zinyalala. Musagwiritse ntchito zotsukira zamadzimadzi.
Kulumikizana: Regularly check all electrical connections (DC input, AC output, ground) for tightness and corrosion. Loose connections can cause overheating and poor performance.
Kuyang'ana Battery: Inspect batteries for signs of damage, corrosion, or electrolyte leakage. Ensure battery terminals are clean and tight.
Chilengedwe: Onetsetsani kuti malo ogwirira ntchito amakhalabe mkati mwa kutentha ndi chinyezi chomwe chatchulidwa.

7. Mavuto

Gawoli likupereka mayankho a mavuto omwe mungakumane nawo nthawi zambiri. Ngati vutoli likupitirira, funsani chithandizo cha makasitomala.

Vuto	Chifukwa Chotheka	Yankho
Inverter siikuyatsa.	No DC input power; Loose battery connections; Blown DC fuse/breaker; Inverter switch OFF.	Onani mphamvu ya batritage; Tighten connections; Replace fuse/reset breaker; Turn inverter switch ON.
Palibe AC yotulutsa.	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.	Batire yotsika 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. Zofotokozera

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

Gulu	Parameter	SP-3000-112
Zotulutsa	AC Voltage	100 / 110 / 115 / 120VAC ± 5%
	Adavoteledwa Mphamvu	3000W
	Surge Power (1 Sec.)	6000W
	Mphamvu Zotulutsa Kwambiri (Mphindi 1)	3450W
	Kutulutsa Waveform	Pure Sine Wave (THD<3%)
	pafupipafupi	50 / 60 Hz ± 0.5%
Zolowetsa	DC Voltage	12VDC
	Voltage manambala	10.5 ~ 16.5VDC
	Palibe Katundu Panopa	<3.0A@12VDC
	Njira Yosungira Mphamvu	<0.4A@12VDC
	Kuchita bwino (Max.)	90%
Chitetezo	Input Under - Voltage Chitetezo	10.5 ± 0.3VDC
	Input Under - Voltagndi Alamu	11.0 ± 0.3VDC
	Input Under - Voltagndi Kubwezeretsa	12.0 ± 0.3VDC
	Input Over - Voltage Chitetezo	16.5 ± 0.3VDC
	Input Over - Voltagndi Kubwezeretsa	14.5 ± 0.3VDC
	Zotulutsa Zochulukira	Shutdown output voltage, kuyambitsanso kuti achire
	Linanena bungwe Short	Shutdown output voltage, kuyambitsanso kuti achire
Chilengedwe	Opaleshoni Temp.	-20°C ~ +40°C
Chilengedwe	Kusungirako Temp. & Chinyezi	-30°C ~ +70°C, 10 ~ 95% RH
General	Makulidwe (W x H x D)	442 x 214 x 102 mm (17.4 x 8.4 x 4.0 mainchesi)
	Kulemera	8.2kg (18.1 lbs)
	Kuziziritsa	Kutentha & katundu wowongoleredwa kuziziritsa fan

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

9. Chitsimikizo ndi Thandizo

9.1 Chidziwitso cha Chitsimikizo

The Cotek SP-3000-112 Pure Sine Wave Inverter comes with a Chitsimikizo Chopanga Zaka 2. Chitsimikizo ichi chimakwirira zolakwika muzinthu ndi kapangidwe kake pansi pakugwiritsa ntchito bwino. Chonde sungani umboni wanu wogula kuti mupereke chitsimikizo.

9.2 Thandizo la Makasitomala

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