1. Inngangur
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. Öryggisupplýsingar
Failure to follow these safety instructions may result in electric shock, fire, serious injury, or death. Always exercise caution when working with electrical equipment.
- Lestu allar leiðbeiningar: Before operating the inverter, read all instructions and cautionary markings on the inverter, the batteries, and all appropriate sections of this manual.
- Hæft starfsfólk: Installation and servicing should be performed by qualified personnel familiar with batteries and inverters.
- Loftræsting: Ensure adequate ventilation around the inverter. Do not install in a zero-clearance compartment.
- Forðastu vatn: Ekki láta inverterinn verða fyrir rigningu, snjó, úða eða lengri vatni.
- Rétt jarðtenging: Inverterinn verður að vera rétt jarðtengdur.
- Öryggi rafhlöðu: Work near lead-acid batteries is dangerous. Batteries generate explosive gases during normal operation. Ensure proper ventilation and wear appropriate personal protective equipment.
- Aftengdu rafmagn: Always disconnect the battery supply before performing any maintenance or troubleshooting.
- Rétt árgtage: Gakktu úr skugga um að DC inntak voltage matches the inverter's specifications (12VDC for this model).


3. Vöru lokiðview
3.1 Helstu eiginleikar
- Hrein sinusbylgjuútgangur fyrir viðkvæma rafeindabúnað.
- 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 Íhlutir invertera




4. Uppsetning og uppsetning
Proper installation is crucial for the safe and efficient operation of your inverter. Refer to local electrical codes and standards.
4.1 Staðsetning
- 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 Raflögn
All wiring must comply with applicable electrical codes and be performed by a qualified electrician.
- Jarðtenging: Connect the inverter's chassis ground terminal to a reliable earth ground using appropriate gauge wire.
- DC inntakstenging:
- Gakktu úr skugga um að rafgeymisrúmmálið sétage er 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.
- Tenging við AC úttak:
- 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).
- Fjarstýring (valfrjálst): Connect the remote control unit to the RJ45 port or use the green terminal for external ON/OFF control if desired.
5. Notkunarleiðbeiningar
5.1 Kveikt/slökkt
- Til að kveikja á: 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.
- Til að slökkva á: Disconnect all AC loads from the inverter. Flip the main power switch to the 'OFF' position.
5.2 LED Vísar
The inverter features 3-color LED status indicators on the control panel (refer to Figure 4) to provide operational feedback:
- Grænt LED: Indicates normal operation and power output.
- Gul LED: Indicates a warning condition, such as low battery voltage or high temperature. The inverter may continue to operate but requires attention.
- Rauður 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 Stillingar
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. Viðhald
Reglulegt viðhald tryggir langlífi og áreiðanlega notkun invertersins.
- Þrif: Hreinsið reglulega ytra byrði invertersins með þurrum klút. Gangið úr skugga um að loftræstiop séu laus við ryk og óhreinindi. Notið ekki fljótandi hreinsiefni.
- Tengingar: Regularly check all electrical connections (DC input, AC output, ground) for tightness and corrosion. Loose connections can cause overheating and poor performance.
- Rafhlaða skoðun: Inspect batteries for signs of damage, corrosion, or electrolyte leakage. Ensure battery terminals are clean and tight.
- Umhverfi: Staðfestið að rekstrarumhverfið sé innan tilgreindra hitastigs- og rakastigsmarka.
7. Bilanagreining
Þessi hluti veitir lausnir á algengum vandamálum sem þú gætir lent í. Ef vandamálið heldur áfram skaltu hafa samband við þjónustuver.
| Vandamál | Möguleg orsök | Lausn |
|---|---|---|
| Inverterinn kveikir ekki á. | No DC input power; Loose battery connections; Blown DC fuse/breaker; Inverter switch OFF. | Athugaðu rúmmál rafhlöðunnartage; Tighten connections; Replace fuse/reset breaker; Turn inverter switch ON. |
| Engin rafstraumur. | 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. | Lágt rafhlaða 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. | Hátt innanhússhiti vegna mikils álags eða lélegrar loftræstingar. | Reduce load; Improve ventilation around the inverter. |
8. Tæknilýsing
The following table outlines the technical specifications for the Cotek SP-3000 Series Pure Sine Wave Inverter, specifically for the SP-3000-112 model.

| Flokkur | Parameter | SP-3000-112 |
|---|---|---|
| Framleiðsla | AC Voltage | 100 / 110 / 115 / 120VAC ±5% |
| Málkraftur | 3000W | |
| Surge Power (1 Sec.) | 6000W | |
| Hámarksúttaksafl (1 mín) | 3450W | |
| Úttaksbylgjuform | Pure Sine Wave (THD<3%) | |
| Tíðni | 50 / 60 Hz ±0.5% | |
| Inntak | DC binditage | 12VDC |
| Voltage Svið | 10.5 ~ 16.5VDC | |
| Enginn álagsstraumur | <3.0A@12VDC | |
| Orkusparnaðarstilling | <0.4A@12VDC | |
| Skilvirkni (hámark) | 90% | |
| Vörn | Input Under - Voltage vernd | 10.5 ±0.3VDC |
| Input Under - Voltage Viðvörun | 11.0 ±0.3VDC | |
| Input Under - Voltage Bati | 12.0 ±0.3VDC | |
| Input Over - Voltage vernd | 16.5 ±0.3VDC | |
| Input Over - Voltage Bati | 14.5 ±0.3VDC | |
| Ofhleðsla úttaks | Lokun úttak voltage, endurræstu til að jafna þig | |
| Framleiðsla stutt | Lokun úttak voltage, endurræstu til að jafna þig | |
| Umhverfi | Rekstrartemp. | -20°C ~ +40°C |
| Geymslutemp. & Raki | -30°C ~ +70°C, 10 ~ 95% RH | |
| Almennt | Mál (B x H x D) | 442 x 214 x 102 mm (17.4 x 8.4 x 4.0 tommur) |
| Þyngd | 8.2 kg (18.1 lbs) | |
| Kæling | Hita- og álagsstýrð kælivifta |

9. Ábyrgð og stuðningur
9.1 Upplýsingar um ábyrgð
The Cotek SP-3000-112 Pure Sine Wave Inverter comes with a 2 árs framleiðandaábyrgðÞessi ábyrgð nær til galla í efni og framleiðslu við eðlilega notkun. Vinsamlegast geymið kaupkvittunina vegna ábyrgðarkröfu.
9.2 Þjónustuver
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.