User Manual
Contents
1. Item SK1500 112 SK1500 124 SK1500 148 SK1500 212 SK1500 224 SK1500 248 Continuous Output Power 1500W Maximum Output Power 3Min 1725W Surge Rating 3000W Input voltage 12V 24V 48V 12V 24V 48V Output Voltage 100 110 120V 3 220 230 240V 3 Frequency 1 50 60Hz 0 05 Switch Selectable Output Waveform Pure Sine Wave THD lt 3 Efficiency full load 88 0 91 0 92 0 90 0 93 0 94 0 No Load Current Draw 1 45A 0 75A 0 40A 1 40A 0 70A 0 40A Stand By Current Draw 0 28A 0 15A 0 09A 0 28A 0 15A 0 09A 10 5 15 21 0 30 42 60 10 5 15 21 0 30 42 60 Input Voltage Regulation VDC VDC VDC VDC VDC VDC Input Level Indicator Red Orange Green LED Load Level Indicator Failure Indicator Red LED Overload Short Circuit Reverse Polarity Fuse Protection Over Under Input Voltage Over Temperature Remote Control Unit CR 6 CR 7 CR 8 Optional Safety UL458 EN60950 1 EN55022 1997 EN55024 1997 EN61000 3 3 1995 Operating Temperature Range 0 40 C Storage Temperature Range 30 C to 70 C Cooling Loading controlled cooling fan Dimensions 415 L 191 W 88 H mm 16 34 L 7 52 W 3 46 H Inch Weight 48 kg 10 56 Lbs Note The specifications are subject to change without notice COTEK Item SK2000 112 SK2000 124 SK2000 148 SK202. a 7 4 UL UL458 NOTICE OF COMPLETION 2 COTEK 1 Important Safety Instructions WARNING Before using the Inverter read and save the safety instructions 1 1 General Safety Precautions eee Do not expose the Inverter to rain snow spray bilge or dust To reduce risk of hazard do not cover or obstruct the ventilation openings Do not install the Inverter in a zero clearance compartment Overheating may result 1 1 2 To avoid a risk of fire and electronic shock Make sure that existing wiring is in good electrical condition and that wire size is not undersized Do not operate the Inverter with damaged or substandard Wiring 1 1 3 This equipment contains components which can produce arcs or sparks To prevent fire or explosion do not install in compartments containing batteries or Flammable materials or in locations which require ignition protected equipment This includes any space containing gasoline powered machinery fuel tanks or joints fittings or other connection between components of the fuel system 1 2 Precautions When Working with Batteries 1 2 1 1 2 2 1 2 3 t24 If battery acid contacts skin or clothing wash immediately with soap and water If acid enters eye immediately flood eye with running cold water for at least 20 minutes and get medical attention immediately Never smoke or allow a spark or flame in vicinity of battery or engine
3. Pure Sine Wave Power Inverter COTEK SK700 151 00 5 94 SK1000 154 00 6 06 SK1500 163 00 6 42 GOTEK Puke SINE WAVE INVERTER ON o SK700 179 00 7 05 SK1000 182 00 7 17 SK1500 191 00 7 52 SK700 71 50 2 83 SK1000 88 00 3 46 SK1500 88 00 3 46 COTEK moooe YA Moooz Nd JOJIBAU JI MOd 9AM BUIS INd 21 3 41 3 3 996 00 Gre l 9 gL 00 86 000ENS 67 71 00 89 000cHS 177 00 6 97 PURE SINE WAVE INVERTER COTEK 199 93 991 AC OUTPUT 209 00 8 23 COTEK 3 Introduction This power inverter series is a the member of the most advanced line of mobile AC power systems available To get the most out of the power inverter it must be installed and used properly Please read the instructions in this manual before installation and operation this model 3 1 Front Panel Operations 3 1 1 Front view O COTEK PURE SINE WAVE INVERTER aa ore 0 REMOTE AC OUTPUT COTEK PURE SINE WAVE INVERTER 18 68 INPUT LEVEL AC OUTPUT 3 1 2 ON OFF REMOTE Main switch LEVEL LEVEL
4. Do not drop a metal tool on the battery The resulting spark or short circuit on the battery of other electrical part may cause an explosion Remove personal metal items such as rings bracelets necklaces and watches when working with a lead acid battery A lead acid battery produces a short circuit current high enough to weld a ring or the like to metal causing a severe burn COTEK 2 Features u Pure sine wave output THD lt 3 Output frequency 50 60Hz switch selectable a Input amp output fully isolation design m Low power Power Saving Mode to conserve energy a High efficiency 89 94 Capable of driving highly reactive amp capacitive loads at start moment a Tri Color indicators display input voltage amp output load level a Loading controlled cooling fan a Advanced microprocessor a Protection Input low voltage Overload Short circuit Low battery alarm Input over voltage Over temperature 2 1 Application 2 1 1 Power tools circular saws drills grinders sanders buffers weed and hedge trimmers air compressors 2 1 2 Office equipment computers printers monitors facsimile machines scanner 2 1 3 Household items vacuum cleaners fans fluorescent and incandescent lights shavers sewing machines 2 1 4 Kitchen appliances coffee makers blenders ice markers toasters 2 1 5 Industrial equipment metal halide lamp high pressure sodium lamp 2 1 6 Hom
5. 00 212 SK2000 224 SK2000 248 Continuous Output Power 2000W Maximum Output Power 3Min 2300W Surge Rating 4000W Input voltage 12V 24V 48V 12V 24V 48V Output Voltage 100 110 120V 3 220 230 240V 3 Frequency 1 50 60Hz 0 05 Switch Selectable Output Waveform Pure Sine Wave THD lt 3 Efficiency full load 89 0 92 0 93 0 91 0 94 0 95 0 No Load Current Draw 2 8A 1 5A 0 7A 2 64A 1 32A 0 65A Stand By Current Draw 0 60A 0 30A 0 15A 0 60A 0 25A 0 15A 10 5 15 21 0 30 42 60 10 5 15 21 0 30 42 60 Input Voltage Regulation VDC VDC VDC VDC VDC VDC Input Level Indicator Red Orange Green LED Load Level Indicator Failure Indicator Red LED Overload Short Circuit Reverse Polarity Fuse Protection Over Under Input Voltage Over Temperature Remote Control Unit CR 6 CR 7 CR 8 Optional Safety UL458 EN60950 1 EN55022 1997 EN55024 1997 EMC FCC Class A EN61000 3 2 1998 e Mark EN61000 3 3 1995 Operating Temperature Range 0 40 C Storage Temperature Range 30 C to 70 C Cooling Loading controlled cooling fan 65 C ON 45 C OFF Dimensions 422 L 208 W 166 H mm 16 6 L 8 18 W 6 53 H Inch Weight 9 kg 19 8 Lbs Note The specifications are subject to change without notice COTEK Item SK3000 112 SK3000 124 SK3000 148 SK3000 212 SK3000 224
6. 4 100 SK700 124 224 6 50 SK700 148 248 6 30 SK1000 112 212 2 150 A SK1000 124 224 4 80 A SK1000 148 248 6 40 SK1500 112 212 2 200 A SK1500 124 224 4 100 SK1500 148 248 6 50 SK2000 112 212 2 0 250 A SK2000 124 224 1 0 125A SK2000 148 248 2 70 A SK3000 112 212 4 0 400 A SK3000 124 224 2 0 200 A SK3000 148 248 1 0 100 A COTEK 3 5 1 Connect the cables to the power input terminals on the rear panel of the inverter The red terminal is positive and black terminal is negative Insert the cables into the terminals and tighten screw to clamp the wires securely WARNING Make sure all the DC connections are tight torque to 9 10 ft lbs 11 7 13 Nm Loose connections could result overheat in a potential hazard WARNING The installation of a fuse must be on positive cable Failure to place a fuse on cables running between the inverter and battery may cause damage to the inverter and will void warranty Also use only high quality copper wire and keep cable length short a maximum of 3 6 feet Battery to inverter cable connection Do not place anything between battery cable lug and terminal surface Assemble exactly as shown 18 COTEK SK700 SK1000 SK1500 DC INPUT POS NEG OYO REMOTE PORT pa IN
7. COTEK SK Series Pure Sine Wave Inverter User s Manual COTEK 1 o RP Contents Important Safety InstructionS sssseaeaseananacnanaanawanzcz02 1 1 1 General Safety Precautions eue aaa anawa anawa aa ana can aaa 1 1 2 Precautions When Working With Batteries 1 1 al AA AA AA AA AA AA 2 PA ADOC AUG AA RA RAA GG AAAA 2 2 2 Electrical POnOrMaliCe aaa Kapa AARAL 3 7 2 3 Mechanical DAWINGS aaa 6 9 INUKA 0 10 3 1 Front Panel Opeallons scat ali OE O AE R 10 13 32 Rear Panel Operatlon swe s sec ROA KE ANNA nG 14 15 3 3 Protections Features acc csp A Eat 15 3 4 Jao AA NAA 16 3 5 Making DC Wiring Connections eeea ee 4 5555559555 5 95 17 19 3 6 AC Safety Grounding Ika GP ADAN AO haka 20 21 37 J verieroperalol n lt it oo OE GA OR AE RE 21 Troubleshooting guide 2 2 acucumuaunanasananananunananaunanaananamana 22 MaINIENANCE ass EOG ARE KARA E 23 Warranty dad EFR AG o AE pr Es az NAG 23 ADpENJICES aaa aaa 7 1 CE LVD EN60950 1 Declaration of Conformity 7 2 FCC Declaration of Conformity e eeaaea maana namu anakan 7 3 e mark e13 Declaration of Conformity
8. LINE FUSE gt K 2 0 0 0 Battery to inverter cable connection SK3000 m MJ PAGA H H INLINE FUSE 5 SI SPRING WASHER a 4 PVC WIRE va N gt R 3 Ne Do not place anything between battery cable lug and terminal surface Assemble exactly as shown 19 COTEK 3 6 AC Safety Grounding The AC output ground wire should go to the grounding point for your loads for example a distribution panel ground bus 3 6 1 Neutral Grounding GFCI S 3 6 1 1 3 6 1 2 120V models The neutral conductor of the AC output circuit of the Inverter is automatically connected to the safety ground during inverter operation In accordance with the National Electrical Code requirements that separately derived AC sources such as inverter and generators have their neutral conductors tied to ground in the same way that the neutral conductor from the utility is tied to ground at the AC breaker panel For models configured with a transfer relay while AC utility power is presenting and the Inverter is in bypass mode this connection neutral of the Inverters AC output to input safety ground is not present so that the utility neutral is only connected to ground at your breaker panel as required 230V models There is no connection made inverter interior bet
9. SK3000 248 Continuous Output Power 3000W Maximum Output Power 3Min 3450W Surge Rating 6000W Input voltage 12V 24V 48V 12V 24V 48V Output Voltage 100 110 120V 3 220 230 240V 3 Frequency 1 50 60Hz 0 05 Switch Selectable Output Waveform Pure Sine Wave THD lt 3 Efficiency full load 88 0 91 0 92 0 90 0 93 0 94 0 No Load Current Draw 2 0A 1 6A 0 8A 2 8A 1 5A 0 7A Stand By Current Draw 0 55A 0 35A 0 19A 0 55A 0 35A 0 19A 10 5 15 21 0 30 42 60 10 5 15 21 0 30 42 60 Input Voltage Regulation VDC VDC VDC VDC VDC VDC Input Level Indicator Red Orange Green LED Load Level Indicator Failure Indicator Red LED Overload Short Circuit Reverse Polarity Fuse Protection Over Under Input Voltage Over Temperature Remote Control Unit CR 6 CR 7 CR 8 Optional Safety UL458 EN60950 1 EN55022 1997 EN55024 1997 EMC FCC Class A EN61000 3 2 1998 Mark EN61000 3 3 1995 Operating Temperature Range 0 40 C Storage Temperature Range 30 C to 70 C Cooling Loading controlled cooling fan Dimensions 452 L 208 W 166 H mm 17 80 L 8 18 W 6 53 H Inch Weight 9 8 kg 22 Lbs Note The specifications are subject to change without notice COTEK 2 3 Mechanical Drawings SK1500 370 00 14 57 196 00 7 72 SK700 273 00 10 75 SK1000 340 00 13 39 g LNdNlJa 93N SOd
10. SK700 SK1000 SK1500 SK2000 SK3000 a Before installing the inverter make sure the main switch must be OFF b Before using the remote unit make sure the main switch must be REMOTE 10 COTEK 3 1 3 Input Level Display Input Voltages DC 12V DC 24V LED Status DC 48V RED Blink slow 10 5 10 9 21 0 21 8 42 0 43 6 RED 10 9 11 3 21 8 22 6 43 6 45 2 ORANGE 11 3 12 0 22 6 24 0 45 2 48 0 GREEN 12 0 14 0 24 0 28 0 48 0 56 0 ORANGE Blink 14 0 14 7 28 0 29 4 56 0 58 8 OVER RED BLINK 14 71 29 41 58 81 3 1 4 Load Level Display AC Loads Watts LED status DARK SK700 0 35W 35 230W 230 525W 525 672W Over 672W SK1000 0 50W 50 330W 330 750W 750 960W Over 960W SK1500 0 75W 75 495W 495 1125W 1125 1450W Over 1450W SK2000 0 100W 100 660W 660 1500W 1500 1920W Over 1920W SK3000 0 150W 150 990W 990 2250W 2250 2880W Over 2880W 3 1 5 AC Frequency Selected by S4 Dip Switch Frequency 50 HZ OFF 60 HZ ON 11 COTEK 3 1 6 Status Display Power amp Fault Status Green LED LED Signal Status Solid Power OK Blink Slow Power Saving Red LED LED Signal Status Blink Fast OVP Blink Slow x AA UVP Blink Intermittently nig ae OTP Solid OLP 3 1 7 Power Saving Mode Power Saving M
11. e entertainment electronics television VCRs video games stereos musical instruments satellite equipment COTEK 2 2 Electrical Performance Item SK700 112 SK700 124 SK700 148 SK700 212 SK700 224 SK700 248 Continuous Output Power 700W Maximum Output Power 3Min 800W Surge Rating 1400W Input voltage 12V 24V 48V 12V 24V 48V Output Voltage 100 110 120V 3 220 230 240V 3 Frequency 1 50 60Hz 0 05 Switch Selectable Output Waveform Pure Sine Wave THD lt 3 Efficiency full load 89 0 91 0 92 0 91 0 93 0 94 0 No Load Current Draw 1 25A 0 64A 0 31A 1 20A 0 60A 0 28A Stand By Current Draw 0 25A 0 15A 0 08A 0 25A 0 15A 0 08A 10 5 15 21 0 30 42 60 10 5 15 21 0 30 42 60 Input Voltage Regulation VDC VDC VDC VDC VDC VDC Input Level Indicator Red Orange Green LED Load Level Indicator Failure Indicator Red LED Overload Short Circuit Reverse Polarity Fuse Protection Over Under Input Voltage Over Temperature Remote Control Unit CR 6 CR 7 CR 8 Optional Safety UL458 EN60950 1 EN55022 1997 EN55024 1997 EN61000 3 3 1995 Operating Temperature Range 0 40 C Storage Temperature Range 30 C to 70 C Cooling Loading controlled cooling fan Dimensions 295 L 180 W 72 H mm 11 61 L 7 09 W 2 83 H Inch Weight 2 7kg 5 4 Lbs Note The s
12. e same compartment as batteries Use the recommended wire lengths and sizes see section 3 5 Also do not mount the Inverter where it will be exposed to the gases produced by the battery These gases are very corrosive and prolonged exposure also will damage the Inverter WARNING Shock Hazard Before proceeding further carefully check that the Inverter is NOT connected to any batteries and that all wiring is disconnected from any electrical sources Do not connect the output terminals of the Inverter to an incoming AC source COTEK 17 3 5 Making DC Wiring Connections Follow this procedure to connect the battery cables to the DC input terminals of the Inverter Your cables should be as short as possible Ideally less than 6 feet 1 8 meters enough to handle the required current in accordance with the electrical codes or regulations application Cables are not an adequate gauge too narrow or too long will decrease the inverter performances such as poor surge capability and low input voltage warnings frequently and shutdowns UVP warning presents due to DC voltage drop across the cables from the inverter to the batteries The longer or narrower the cables the greater the voltage drop Increasing your DC cable size will help improve the situation Following cable recommendations for the best performance of inverter Apply both 120V and 230V versions SK700 112 212
13. nverter without a proper ground connection may result in an electrical safety hazard 3 3 Protections Features Over Temperature Protection DC Input VDC INTERIOR _ HEAT SINK Restart Restart down 70 C Under Over Voltage Under Modeling ea ace Voltage Shut 9 ut EM Restart Alarm Restart down down 12V 15 3 14 2 11 0 10 5 12 5 24V 30 6 28 4 22 0 21 0 25 0 48V 61 2 56 8 44 0 42 0 50 0 45 C down 90 C 60 C 15 COTEK 3 4 Installation Where to install The power inverter should be installed in a location that Meets the following requirements 3 4 1 Dry Do not allow water to drip or splash on the inverter 3 4 2 Cool Ambient air temperature should be between 0 C and 40 C the cooler the better 3 4 3 Safe Do not install in a battery compartment or other areas where flammable fumes may exist such as fuel storage areas or engine compartments 3 4 4 Ventilated Allow at least one inch of clearance around the inverter for air flow Ensure the ventilation openings on the rear and front of the unit are not obstructed 3 4 5 Dust Do not install the Inverter in a dusty environments where are dust wood particles or other filings shavings are present These dust can be pulled into the unit when the cooling fan is operating 3 4 6 Close to batteries Avoid excessive cable lengths but do not install the Inverter in th
14. ode is adjustable and set by the Dip Switches S1 S2 and S3 on front panel Example With the watt setting at 15W a 15W load will bring the inverter to operate normally a 15W 4 load the Power saving mode presents 5 700 Skisoo 860009 DISABLE DISABLE DISABLE OFF OFF OFF 15W 20W 40W ON OFF OFF 30W 40W 80W OFF ON OFF 40W 50W 100W ON ON OFF 56W 60W 120W OFF OFF ON 7OW 80W 160W ON OFF ON 84W 90W 180W OFF ON ON 100W 110W 220W ON ON ON 12 COTEK 3 1 8 AC outlets available LI Australia New Zealand United Kingldom 13 COTEK 3 2 Rear Panel Operations DC INPUT POS 4 NEG C SK700 SK1000 SK1500 SK2000 SK3000 3 2 1 Remote Port The SK Series Inverter can be compatible with any of remote controllers CR 6 CR 7 or CR 8 Before using the remote unit make sure the main switch must be REMOTE 3 2 2 Fan Ventilation Do not obstruct allow at least 1 inch for proper air flow 14 COTEK 3 2 3 DC Input Terminals Connect to 12V 24V 48V battery or the other power sources is positive O is negative Reverse polarity connection will blow internal fuse and may damage inverter permanently 8 O oitage Ode 12 V 10 5 15 0 24 V 21 0 30 0 48 V 42 0 60 0 3 2 4 Chassis Ground using 8 AWG wire to connect vehicle chassis WARNING Operation of the i
15. pecifications are subject to change without notice COTEK Item SK1000 112 SK1000 124 SK1000 148 SK1000 212 SK1000 224 SK1000 248 Continuous Output Power 1000W Maximum Output Power 3Min 1150W Surge Rating 2000W Input voltage 12V 24V 48V 12V 24V 48V Output Voltage 100 110 120V 3 220 230 240V 3 Frequency 1 50 60Hz 0 05 Switch Selectable Output Waveform Pure Sine Wave THD lt 3 Efficiency full load 89 0 92 0 93 0 91 0 94 0 95 0 No Load Current Draw 1 43A 0 75A 0 38A 1 25A 0 65A 0 35A Stand By Current Draw 0 25A 0 15A 0 09A 0 25A 0 15A 0 09A a 10 5 15 21 0 30 42 60 10 5 15 21 0 30 42 60 Input Voltage Regulation VDC VDC VDC VDC VDC VDC Input Level Indicator Red Orange Green LED Load Level Indicator Failure Indicator Red LED Overload Short Circuit Reverse Polarity Fuse Protection Over Under Input Voltage Over Temperature Remote Control Unit CR 6 CR 7 CR 8 Optional Safety UL458 EN60950 1 EN55022 1997 EN55024 1997 EN61000 3 3 1995 Operating Temperature Range 0 40 C Storage Temperature Range 30 C to 70 C Cooling Loading controlled cooling fan Dimensions 383 L 182 W 88 H mm 15 08 L 7 17 W 3 46 H Inch Weight 4kg 8 8 Lbs Note The specifications are subject to change without notice COTEK
16. rs will also appear various colors Finally the buzzer will sound another Beep and the Input Level and Status LED indicators will turn to Green color the inverter starts working successfully 3 7 2 Set the power switch to the OFF position the inverter stops and all the lights that are On go Off 3 7 3 Set power inverter switch to the ON position and turn the test load On The inverter should supply power to the load If you plan to accurately measure the true output r m s voltage of inverter a meter such ad FLUKE 45 BECKMAN 4410 or TRIPLETT 4200 must be used COTEK 4 Troubleshooting guide WARNING Do not open or disassemble the Inverter Attempting to service the unit yourself may result in a risk of electrical shock or fire Problems and Symptoms Possible Cause Solutions No AC Power Output STATUS illuminates the red LED a Blinking fast Over input voltage Check input voltage OVP Reduce input voltage b Blinking slow Low input voltage Recharge battery UVP Check connections and cable c Blinking Intermittently Thermal shutdown Improve ventilation OTP Make sure ventilation openings in inverter are not obstructed Reduce ambient temperature d Solid ON Short circuit or Wiring Check AC wiring for error short circuit Overload OLP Reduce load 22 COTEK 5 Maintenance Very little maintenance is required to keep your inverter operating properly Yo
17. u should clean the exterior of the unit periodically with a damp cloth to prevent accumulation of dust and dirt At the same time tighten the screws on the DC input terminals 6 Warranty 23 We warrant this product against defects in materials and workmanship for a period of 24 months from the date of purchase and will repair or replace any defective Power Inverter when directly returned postage paid to us This warranty will be considered void if the unit has suffered any obvious physical damage or alteration either internally or externally and does not cover damage arising from improper use such as plugging The unit into an unsuitable power sources attempts to operate products with excessive power consumption requirements or use in unsuitable environments This is the only warranty that the company makes No other warranties express or imply including warranties of merchantability and fitness for a particular purpose Repair and replacement are your sole remedies and the company shall not be liable for damages whether direct incidental special or consequential even though caused by negligence or other fault COTEI No 33 Rong Hsin Rd Pa Teh City Tao Yuan County Taiwan Phone 886 3 3661581 FAX 886 3 3676029 E mail sales cotek com tw http www cotek com tw 2005 03
18. ween either the line or neutral conductor to the safety ground WARNING Risk of electronic shock Use only Pass and Seymour type 2091 W or 2094 W ground fault circuit interrupter receptacles Others may fail in operating the inverter when connecting to the inverter s equipment 20 COTEK 21 Ground Fault Circuit Interrupters GFCI Installations in Recreational Vehicles for North American approvals will require GFCI protection of all branch circuit connected to the AC output of the hardwire terminal equipped Inverter In addition electrical codes require GFCI protection of certain receptacles in residential installations While the pure sine wave output of the Inverter is equivalent to the waveform provided by utilities compliance with UL standards requires us to test and recommend specific GFCI Cotek has tested the following GFCI protected 20A receptacles and found that they functioned properly when connected to the output of the Inverter Inverter Operation To operate the power inverter turn the main switch ON The power inverter is now ready to deliver AC power to your loads If there is several loads use turn them on separately after the inverter has been ON in order to prevent the OVP present caused by the surge power 3 7 1 Set the power switch to the ON position and the buzzer will send out Beep sounds at the moment the inverter will do self diagnosis then the LED s indicato
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