Bhuku rekushandisa reCotek SP-3000-112 High Frequency Pure Sine Wave Inverter

1. Nhanganyaya

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. Safety Information

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

Verenga Mirairo Yese: Before operating the inverter, read all instructions and cautionary markings on the inverter, the batteries, and all appropriate sections of this manual.
Vashandi Vanokwanisa: Installation and servicing should be performed by qualified personnel familiar with batteries and inverters.
Kufefetedza Ensure adequate ventilation around the inverter. Do not install in a zero-clearance compartment.
Dzivisa Mvura: Do not expose the inverter to rain, snow, spray, or bilge water.
Nzvimbo Yakakodzera: The inverter must be properly grounded.
Kuchengetedzwa kweBhatiri: Work near lead-acid batteries is dangerous. Batteries generate explosive gases during normal operation. Ensure proper ventilation and wear appropriate personal protective equipment.
Bvisa Simba: Always disconnect the battery supply before performing any maintenance or troubleshooting.
Right Voltage: Ita shuwa kuti DC inopinza 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 — Wear appropriate personal protective equipment during installation and maintenance.

3. Chigadzirwa Pamusoroview

3.1 Mamiriro Akakosha

Kuburitsa kwakachena kwesine wave kune zvigadzirwa zvemagetsi zvinonzwa.
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 / Pamusoro 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 — **Mufananidzo 1:** Pakazara 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 — **Mufananidzo 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 — **Mufananidzo 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 — **Mufananidzo 4:** Detailed 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. Setup uye Kuiswa

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

4.1 Kuiswa

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 Wiring

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

Grounding: Connect the inverter's chassis ground terminal to a reliable earth ground using appropriate gauge wire.
DC Input Connection:
- 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.
AC Output Connection:
- 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).
Remote Control (Sarudzo): Connect the remote control unit to the RJ45 port or use the green terminal for external ON/OFF control if desired.

5. Operating Instructions

5.1 Kubatidza/Kudzima

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

5.2 LED zviratidzo

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

Green Girazi: Indicates normal operation and power output.
Yero LED: Indicates a warning condition, such as low battery voltage or high temperature. The inverter may continue to operate but requires attention.
Dzvuku re LED: 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. Kuchengeta

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

Kuchenesa: Nguva nenguva chenesai kunze kweinverter nejira rakaoma. Iva nechokwadi chekuti maburi emhepo haana guruva kana marara. Musashandise zvinochenesa mvura.
Connections: Regularly check all electrical connections (DC input, AC output, ground) for tightness and corrosion. Loose connections can cause overheating and poor performance.
Kuongorora Bhatiri: Inspect batteries for signs of damage, corrosion, or electrolyte leakage. Ensure battery terminals are clean and tight.
Environment: Iva nechokwadi chekuti nzvimbo yekushanda iri mukati memazinga ekupisa nehunyoro zvakatarwa.

7. Kugadzirisa matambudziko

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

Dambudziko	Zvinogona Kukonzera	Solution
Inverter haina kubatika.	No DC input power; Loose battery connections; Blown DC fuse/breaker; Inverter switch OFF.	Tarisa bhatiri voltage; Tighten connections; Replace fuse/reset breaker; Turn inverter switch ON.
Hapana AC inobuda.	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.	Low bhatiri 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.	Kupisa kwakanyanya kwemukati nekuda kwekuremerwa kwakanyanya kana kusafema zvakanaka kwemhepo.	Reduce load; Improve ventilation around the inverter.

8. Zvinotsanangurwa

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

Category	Parameter	SP-3000-112
Output	AC Voltage	100 / 110 / 115 / 120VAC ± 5%
	Rated Power	3000W
	Surge Power (1 Sec.)	6000W
	Simba reKubuda zvakanyanya (1 Min)	3450W
	Output Waveform	Wave yeSine Yakachena (THD<3%)
	Frequency	50 / 60 Hz ±0.5%
Input	DC Voltage	12VDC
	Voltage Range	10.5 ~ 16.5VDC
	Hapana Mutoro Wazvino	<3.0A@12VDC
	Power Saving Mode	<0.4A@12VDC
	Kunyatsogona (Max.)	90%
Dziviriro	Input Under - Voltage Dziviriro	10.5 ±0.3VDC
	Input Under - Voltage Alarm	11.0 ±0.3VDC
	Input Under - Voltage Kudzoreredza	12.0 ±0.3VDC
	Input Over - Voltage Dziviriro	16.5 ±0.3VDC
	Input Over - Voltage Kudzoreredza	14.5 ±0.3VDC
	Output Overload	Shutdown yakabuda voltage, tangazve kupora
	Kubuda Pfupi	Shutdown yakabuda voltage, tangazve kupora
Environment	Operating Temp.	-20°C ~ +40°C
Environment	Storage Temp. & Humidity	-30°C ~ +70°C, 10 ~ 95% RH
General	Zviyero (W x H x D)	442 x 214 x 102 mm (17.4 x 8.4 x 4.0 inches)
	Kurema	8.2kg (18.1 lbs)
	Kutonhodza	Tembiricha & mutoro unodzorwa kutonhora fan

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

9. Warranty uye Tsigiro

9.1 Ruzivo rweWaranti

The Cotek SP-3000-112 Pure Sine Wave Inverter comes with a 2-Yegore Mugadziri Warranty. Iyi waranti inovhara kukanganisa mune zvigadzirwa uye magadzirirwo pasi pekushandiswa kwakajairwa. Ndapota chengetedza humbowo hwako hwekutenga kwezvichemo zvewaranti.

9.2 Mutengi Tsigiro

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