Sofarsolar SOFAR 7KTLM-G3 User Manual
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Sofarsolar SOFAR 7KTLM-G3 User Manual

Solar grid-tied inverter
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User manual
Solar Grid-tied Inverter
Product Model: SOFAR 7K~10.5KTLM-G3
S h e n z h e n S O FA R S O L A R C o . , L t d .

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Summary of Contents for Sofarsolar SOFAR 7KTLM-G3

  • Page 1 User manual Solar Grid-tied Inverter Product Model: SOFAR 7K~10.5KTLM-G3 S h e n z h e n S O FA R S O L A R C o . , L t d .

  • Page 2: Table Of Contents

    8. Technical data....................- 57 - 8.1. Input parameters (DC).................- 57 - 8.2. Output parameters (AC)..............- 58 - 8.3. Efficiency,Protection and Communication......... - 59 - 8.4. General Date..................- 60 - 9. Quality Assurance.................... - 61 - Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 3 Copyright Declaration The copyright of this manual belongs to Shenzhen SOFARSOLAR Co.,Ltd. Any corporation or individual should not plagiarize, partially copy or fully copy it (including software, ect .), and no reproduction or distribution of it in any form or by any means.All right reserved.

  • Page 4: Preface

    You must understand these emphasized information to avoid the personal injury and property loss.Please read the following symbols used in this manual carefully. Copyright © Shenzhen SOFARSOLAR Co., Ltd...
  • Page 5 Caution Attention indicates potential risks which, if not avoided, may lead to equipment fault or property damage. Attention Note provides tips that are valuable for the optimal operation of the product. Note Copyright © Shenzhen SOFARSOLAR Co., Ltd...

  • Page 6: Basic Safety Information

    User manual SOFAR 7K~10.5KTLM-G3 1. Basic safety information If you have any question or problem when you read the following information, please contact Shenzhen SOFARSOLAR Co., Ltd. Note Outlines of this chapter Safety instruction It mainly introduce the safety instruction when install and operate the equipment.
  • Page 7 / or has demonstrated skills and knowledge in construction and in operation of this unit, can install this inverter. Shenzhen SOFARSOLAR Co., Ltd does not take any responsibility for the property destruction and personal injury because of any incorrect use.
  • Page 8 Attention It’s forbidden to remove the tamper evident label, or open the inverter. Otherwise Sofarsolar will not provide warranty or maintenance! Note Operation Touching the electrical grid or the terminal of the equipment may lead to electrocution or fire! Don’t touch the terminal or conductor connected to the electrical...

  • Page 9: Symbols And Signs

    Can’t open the internal components of inverter without authorized. Shenzhen SOFARSOLAR Co., Ltd. does not take any responsibility Attention for the losses from that. EMC / noise level of inverter...
  • Page 10 User manual SOFAR 7K~10.5KTLM-G3 Signs on the inverter There are some symbols which are related to security on the inverter. Please read and understand the content of the symbols, and then start the installation. There is a residual voltage in the inverter! Before opening the equipment, operator should wait for five minutes to ensure the capacitor is discharged completely.

  • Page 11: Product Characteristics

    User manual SOFAR 7K~10.5KTLM-G3 2. Product characteristics Outlines of this chapter Product dimensions It introduces the field of use, and the overall dimensions of SOFAR 7K~10.5KTLM-G3 inverters. Function description It introduces how SOFAR 7K~10.5KTLM-G3 inverters work and the function modules inside. Efficiency curves It introduces the efficiency curves of in the inverter.
  • Page 12 User manual SOFAR 7K~10.5KTLM-G3 SOFAR 7K~10.5KTLM-G3 inverters can only be used with photovoltaic modules that do not require one of the poles to be grounded. The operating current during normal operation must not exceed the limits specified in the technical specifications. Only the photovoltaic modules can be connected to the input of the inverter (do not connect batteries or other sources of power supply).

  • Page 13: Function Characteristics

    User manual SOFAR 7K~10.5KTLM-G3 Figure 2-3 Bracket dimensions of SOFAR 7K~10.5KTL-G3  Labels on the equipment The labels must NOT be hidden with objects and extraneous parts (rags,boxes,equipment,etc.);they must be cleaned regularly and kept visible at all times. 2.2. Function characteristics DC power generated by PV array is filtered through Input Board before entering - 8 - Copyright ©...
  • Page 14 User manual SOFAR 7K~10.5KTLM-G3 into Power Board. Input Board also offer functions such as insulation impedance detection and input DC voltage / current detection. DC power is converted to AC power by Power Board. AC power is filtered through Output Board then AC power is fed into the grid.

  • Page 15: Efficiency Curve

    User manual SOFAR 7K~10.5KTLM-G3 software. Electrical block diagram Figure2-4 Electrical block diagram 2.3. Efficiency curve - 10 - Copyright © Shenzhen SOFAR SOLAR Co., Ltd...

  • Page 16: Installation

    User manual SOFAR 7K~10.5KTLM-G3 3. Installation Outlines of this chapter This topic describes how to install the SOFAR 7K~10.5KTLM-G3 . Installation notes Do NOT install the SOFAR 7K~10.5KTLM-G3 on flammable material. Do NOT install the SOFAR 7K~10.5KTLM-G3 in an area used to store Flammable or explosive material.
  • Page 17 User manual SOFAR 7K~10.5KTLM-G3 Therefore, check the outer packing materials before installing the inverter. Check the outer packing materials for damage, such as holes and cracks. If any damage is found, do not unpack the SOFAR 7K~10.5KTLM-G3 and contact the dealer as soon as possible.
  • Page 18 User manual SOFAR 7K~10.5KTLM-G3 Metal terminals secured to 3pcs PV- input power cables Communication COM 8pin 1pcs Terminal USB acquisition stick 1pcs (WIFI/GPRS/Ethernet) (Optional) AC Buckler 1pcs M6 Hexagon screws 3pcs M4*12 cross screw 4pcs M6*80 anchoring 3pcs TO Terminal 3pcs - 13 - Copyright ©...

  • Page 19: Tools

    User manual SOFAR 7K~10.5KTLM-G3 Manual 1pcs The warranty card 1pcs Registration Form 1pcs 3.3. Tools Prepare tools required for installation and electrical connections. Table 3-2 Shows the tools required for installation and electrical connections. Tool Model Function Hammer drill Recommend drill Used to drill holes on the wall.

  • Page 20: Determining The Installation Position

    User manual SOFAR 7K~10.5KTLM-G3 5mm Allen Turn the screw to connect rear Wrench panel with inverter. Crimping tool Used to crimp power cables Multi-meter Used to check grounding Marker Used to mark signs Measuring tape Used to measure distances Used to ensure that the rear panel Level is properly installed ESD gloves...
  • Page 21 User manual SOFAR 7K~10.5KTLM-G3 Figure3-2 Installation Requirements 50cm 50cm - 16 - Copyright © Shenzhen SOFAR SOLAR Co., Ltd...

  • Page 22: Moving The Sofar 7K~10.5Ktlm-G3

    User manual SOFAR 7K~10.5KTLM-G3 3.5. Moving the SOFAR 7K~10.5KTLM-G3 This topic describes how to move the to the installation position Horizontally SOFAR 7K~10.5KTLM-G3. Step 1 Open the packaging, insert hands into the slots on both sides of the inverter and hold the handles, as shown in Figure 3-3 and Figure 3-4. Figure 3-3 Moving the inverter (1) - 17 - Copyright ©...

  • Page 23: Installing Sofar 7K~10.5Ktlm-G3

    User manual SOFAR 7K~10.5KTLM-G3 Figure 3-4 Moving the inverter (2) Step 2 Lift the SOFAR 7K~10.5KTLM-G3 from the packing case and move it to the installation position. To prevent device damage and personal injury, keep balance when moving the inverter because the inverter is heavy. Do not put the inverter with its wiring terminals contacting the floor because the power ports and signal ports are not designed to support the weight of the inverter.
  • Page 24 User manual SOFAR 7K~10.5KTLM-G3 Figure 3-5 Step 4 Hook the inverter to the rear panel. Using an M6 screw to secure the inverter to the rear panel to ensure safety. Step 5 You can secure the inverter to the rear panel and protect if from stealing by installing an anti-theft lock (this action is optional).

  • Page 25: Electrical Connections

    For SOFAR 7K~10.5KTLM-G3,open-circuit voltage(Voc) of module arrays connected in series must be≤550V. Note The connected PV modules must have an IEC 61730 Class A ratin IscPV(absolute maximum) 30A/22.5A/22.5A SOFAR 7KTLM-G3 SOFAR 7.7KTLM-G3 SOFAR 8KTLM-G3 Maximum output over current protection SOFAR 9KTLM-G3 SOFAR10KTLM-G3 SOFAR 10.5KTLM-G3...

  • Page 26: Connecting Pgnd Cables

    User manual SOFAR 7K~10.5KTLM-G3 Interface PV input interface DVCC AC output interface DVCC USB interface DVCA Com interface DVCA DC switch parameters Rated-insulation voltage 1500V Rated impulse withstand voltage Rated operational current (Ie) 1100V/30A,600V/55A PV utilization category DC-21B/PV2 Rated short time withstand current (Icw) 700A.1S Rated short-circuit making capacity (Icm) 1.4KA...
  • Page 27 User manual SOFAR 7K~10.5KTLM-G3 stripper, as shown in Figure 4-1. Figure4-1 Preparing a ground cable (1) Note： L2 is 2 to 3mm longer than L1 Step 2 Insert the exposed core wires into the OT terminal and crimp them by using a crimping tool, as shown in Figure 4-2.

  • Page 28: Connecting Dc Input Power Cables

    User manual SOFAR 7K~10.5KTLM-G3 Figure4-3 Ground terminal composition 1.Tapped hole 2.OT Termina 3.M6 screw 4.3. Connecting DC Input Power Cables Table 4-1 Recommended DC input cable specifications Cross-Sectional Area (mm ²) External Cable Diameter(mm) Range Recommended Value 4.0~6.0 4.5~7.8 Step 1 Remove cable glands from the positive and negative connectors. Step 2 Remove the insulation layer with an appropriate length from the positive and negative power cables by using a wire stripper as show in Figure 4-4.
  • Page 29 User manual SOFAR 7K~10.5KTLM-G3 Figure 4-4 Connecting DC input power cables 1.Positive power cable 2.Negative power cable Note: L2 is 2 to 3 mm longer than L1. Step 3 Insert the positive and negative power cables into corresponding cable glands. Step 4 Insert the stripped positive and negative power cables into the positive and negative metal terminals respectively and crimp them using a clamping tool.

  • Page 30: Connecting Ac Output Power Cables

    User manual SOFAR 7K~10.5KTLM-G3 them against the insulation covers. Step 7 Insert the positive and negative connectors into corresponding DC input terminals of the inverter until you hear a "click" sound, as shown in Figure 4-6. Figure 4-6 Connecting DC input power cables 1.Bayonet Note: Please use the multimeter to confirm the positive and negative poles of the photovoltaic array!
  • Page 31 User manual SOFAR 7K~10.5KTLM-G3 It is not allowed for several inverters to use the same circuit breaker. It is not allowed to connect loads between inverter and circuit breaker. AC breaker used as disconnect device,and the disconnect device shall remain readily operable. Caution Context All the AC output cables used for the inverters are outdoor three-core cables.
  • Page 32 User manual SOFAR 7K~10.5KTLM-G3 following figure： Figure 4-9 Wire length, wire cross sectional area and wire power loss The AC output terminal of this product is equipped with high current 3-core terminal block and customized AC output waterproof cover, which can meet theIP65 level requirements after installation.
  • Page 33 User manual SOFAR 7K~10.5KTLM-G3 Wiring Procedure as following: Step 1 Step 2 Use press pliers TO press the Select appropriate cables according to Table 4-2, Remove the TO terminal and the cable. The TO insulation layer of the AC output cable terminal is covered with insulating using a wire stripper according to the bushings.
  • Page 34 User manual SOFAR 7K~10.5KTLM-G3 Step 4 Connect the AC output cable according to the following requirements: Connect the yellow and green wires into the keyhole marked with "PE" and tighten it with an internal cross screwdriver; Connect the brown wire into the keyhole marked with "L" and tighten it with an internal cross screwdriver;...

  • Page 35: Com Port Connection

    User manual SOFAR 7K~10.5KTLM-G3 4.5. Com port connection The com port location of the SOFAR 7K~10.5KTLM-G3 is shown in the figure below. Figure 4-11 COM port appearance Table 4-3 Com port pin definitions (The terminal type is either of the following) Definition Function Note...
  • Page 36 User manual SOFAR 7K~10.5KTLM-G3 according to DRM3/7 different standard DRM4/8 requirements The current sensor outputs a positive Used to connect electrode current sensor of The current sensor power grid outputs a negative electrode 4.4.1 Logic interface (a) Logic interface for AS/NZS 4777.2:2020, also known as inverter demand response modes (DRMs).
  • Page 37 User manual SOFAR 7K~10.5KTLM-G3 Figure 4-12 Inverter – RRCR Connection Table 4-5 Function description of the terminal Pin NO. Pin name Description Connected to (RRCR) Relay contact 1 input K1 - Relay 1 output Relay contact 2 input K2 - Relay 2 output Relay contact 3 input K3 - Relay 3 output Relay contact 4 input...
  • Page 38 User manual SOFAR 7K~10.5KTLM-G3 Figure 4-13 Inverter – RRCR Connection Table 4-7 Function description of the terminal Pin NO. Pin name Description Connected to (RRCR) Relay contact 1 input K1 - Relay 1 output K1 - Relay 1 output Table 4-8 The inverter is preconfigured to the following RRCR power levels. Relay status: close is 1, open is 0 Active Power Power drop rate...
  • Page 39 User manual SOFAR 7K~10.5KTLM-G3 Figure 4-14 A single SOFAR 7K~10.5KTLM-G3 connecting communications If multiple SOFAR 7K~10.5KTLM-G3 are used, connect all SOFAR 7K~10.5KTLM-G3 in daisy chain mode over the RS485 communication cable.Set different Modbus address (1~31) for each inverter in LCD display. Figure 4-15 Multi SOFAR 7K~10.5KTLM-G3 connecting Communications 4.4.3 CT interface There are two ways to get grid current information :...
  • Page 40 User manual SOFAR 7K~10.5KTLM-G3 Figure 4-16 Plan A:CT (default) Plan B:Meter+CT (optional) - 35 - Copyright © Shenzhen SOFAR SOLAR Co., Ltd...

  • Page 41: Wifi/Gprs

    User manual SOFAR 7K~10.5KTLM-G3 4.6. WIFI/GPRS Figure 4-17 Connect one USB acquisition stick (WIFI version) to wireless router Figure 4-18 Connect multiple USB acquisition stick (WIFI version) to wireless router NOTE The length of the RS485 communication cable should be less than 1000 m. The length of the WIFI communication cable should be less than 100 m.
  • Page 42 User manual SOFAR 7K~10.5KTLM-G3 over an RS485/USB converter, a maximum of 31 inverters can be connected in a daisy chain. The operation information (generated energy, alert, operation status) of the inverter can be transferred to PC or uploaded to the server via WiFi/GPRSUsers can choose to use web or APP for monitoring and viewing according to their needs.

  • Page 43: Commissioning Of Inverter

    User manual SOFAR 7K~10.5KTLM-G3 5. Commissioning of inverter 5.1. Safety inspection before commissioning Ensure that DC and AC voltages are within the acceptable range of the inverter. Attention 5.2. Start inverter Step 1: Turn ON the DC switch.(optional) Step 2: Turn ON the AC circuit breaker. When the DC power generated by the solar array is adequate, the SOFAR 7K~10.5KTLM-G3 inverter will start automatically.

  • Page 44: Operation Interface

    User manual SOFAR 7K~10.5KTLM-G3 6. Operation interface Outlines of this chapter This section introduces the display, operation, buttons and LED indicator lights of SOFAR 7K~10.5KTLM-G3 Inverter. 6.1. Operation and Display Panel Buttons and Indicator lights Button: “∧” Short press UP button = go up “∧”...

  • Page 45: Standard Interface

    User manual SOFAR 7K~10.5KTLM-G3 6.2. Standard Interface When power-on, LCD interface displays INITIALIZING, refer below picture. When control board successfully connected with communication board, the LCD display the current state of the inverter，display as shown in the figure below. - 40 - Copyright ©...
  • Page 46 User manual SOFAR 7K~10.5KTLM-G3 Inverter states includes: wait、check、normal、fault and permanent Wait: Inverter is waiting to Check State at the end of reconnection time. In this state, grid voltage value is between the max and min limits and so on; If not, Inverter will go to Fault State or Permanent State.

  • Page 47: Main Interface

    User manual SOFAR 7K~10.5KTLM-G3 6.3. Main Interface Long press the “∨”button under standard interface to enter into main interface, including: “∨” Normal ------Long press the 1.Enter Setting 2.Event List 3.SystemInfo 4.System Time 5.Software Update (A) “Enter Setting” Interface as below: “∨”...
  • Page 48 USB flash disk card in advance. Note: To enable this feature, please contact the SOFARSOLAR technical support . Table 6-1 List of regulated countries...
  • Page 49 User manual SOFAR 7K~10.5KTLM-G3 5. On-Off Control Inverter on-off local control. 6. Set Energy Set the total power generation. You can modify the total power generation through this option. 7. Set address Set the address (when you need to monitor multiple inverters simultaneously) , Default 01.
  • Page 50 User manual SOFAR 7K~10.5KTLM-G3 14. Autotest Fast 14.Autotest Fast Start Autotest Long press the“∨” to start Testing 59.S1... ↓ Wait Test 59.S1 OK! ↓ Wait Testing 59.S2... ↓ Wait Test 59.S2 OK! ↓ Wait Testing 27.S1... ↓ Wait Test 27.S1 OK! ↓...
  • Page 51 User manual SOFAR 7K~10.5KTLM-G3 59.S2: 229V 204ms ↓ Short press the“∨” 27.S1 threshold 195.5V 1500ms ↓ Short press the“∨” 27.S1: 228V 1508ms ↓ Short press the“∨” 27.S2 threshold 34.5V 200ms ↓ Short press the“∨” 27.S2: 227V 205ms ↓ Short press the“∨” 81>.S1 threshold 50.5Hz 100ms ↓...

  • Page 52: Update Software Online

    (E) Software Update User can update software by USB flash drive , SOFARSOLAR will provide the new update software called firmware for user if it is necessary, The user needs to copy the upgrade file to the USB flash drive.
  • Page 53 Step 1 Insert the USB flash drive into the compute. Step 2 SOFARSOLAR will send the Software code to the user who needs to update. After user receive the file,please decompressing file and cover the original file in USB flash drive.

  • Page 54: Trouble Shooting

    User manual SOFAR 7K~10.5KTLM-G3 7. Trouble shooting Outlines of this chapter This topic describes how to perform daily maintenance and troubleshooting to ensure long term proper operation of the inverter. 7.1. Trouble shooting This section contains information and procedures for solving possible problems with the inverter.
  • Page 55 User manual SOFAR 7K~10.5KTLM-G3 If an Earth Fault Alarm occurs, the fault will be displayed on the LCD screen, the red light will be on, and the fault can be found in the history of the fault. For the machine installed with Wi-Fi/GPRS, the alarm information can be seen on the corresponding monitoring website, and can also be received by the APP on the mobile phone.
  • Page 56 User manual SOFAR 7K~10.5KTLM-G3 sampling error Wrong sampling of dc HwADErrDCI(A ID018 component grid current HwADErrVGrid( Power grid voltage ID019 sampling error (DC) HwADErrVGrid( Power grid voltage ID020 sampling error (AC) HwADErrVGrid( Leakage current ID021 sampling error (DC) HwGFCIFault(A Leakage current ID022 sampling error (AC)
  • Page 57 User manual SOFAR 7K~10.5KTLM-G3 mode (parallel/independent mode) Settings for the inverter. If not, change the PV input mode. CT error Check whether the CT wiring is ID045 CTDisconnect correct. Input reverse ID046 ReversalConnect connection fault ID047 ParallelFault Parallel operation fault ID048 SNTypeFault Serial number error...
  • Page 58 User manual SOFAR 7K~10.5KTLM-G3 input voltage of the inverter. If so, adjust the number of PV modules in series and reduce the PV series voltage to fit the input voltage range of the inverter. After correction, the inverter will automatically return to its normal state.
  • Page 59 User manual SOFAR 7K~10.5KTLM-G3 ID102 HwPVOCP PV hardware overflows output hardware ID103 HwACOCP overflows ID105 MeterCommFault Meter Error ID110 Overload1 Overload protection 1 Please check whether the inverter is operating under overload. ID111 Overload2 Overload protection 2 ID112 Overload3 Overload protection 3 Internal temperature is Make sure the inverter is installed too high.
  • Page 60 User manual SOFAR 7K~10.5KTLM-G3 Permanent failure of PermIacUnbalanc ID135 unbalanced output current Input mode setting error Check input mode ID137 PermInCfgError permanent failure (parallel/independent mode) Settings for the inverter. If not, change the PermDCOCPInst Input overcurrent ID138 PV input mode. permanent fault Input hardware...

  • Page 61: Maintenance

    User manual SOFAR 7K~10.5KTLM-G3 load reduction. Logic interface derating The inverter is loaded by the execution ID166 LogicIfDerating logic interface. AlarmAntiReflux Anti reflux derating The inverter is implemented to prevent ID167 countercurrent load drop. Fan 1 fault Please check whether the fan 1 of ID169 FanFault1 inverter is running normally.

  • Page 62: Technical Data

    User manual SOFAR 7K~10.5KTLM-G3 8. Technical data 8.1. Input parameters (DC) SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 7KTLM- 7.7KTL 8KTLM- 9KTLM- 10KTLM 10.5KTL M-G3 M-G3 Recommended Max. 10500Wp 10500Wp 12000Wp 13500Wp 15000Wp 15000Wp PV input power 6250W/50 6250W/50 6250W/50 6250W/50 6250W/50...

  • Page 63: Output Parameters (Ac)

    User manual SOFAR 7K~10.5KTLM-G3 8.2. Output parameters (AC) SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 7KTLM- 7.7KTLM 8KTLM- 9KTLM- 10KTLM 10.5KTLM Rated power 7000W 7700W 8000W 9000W 10000W 10500W Max. AC power 7700VA 7700VA 8800VA 9900VA 10000VA 10500VA Nominal output 31.8A 36.4A 40.9A...

  • Page 64: Efficiency,Protection And Communication

    User manual SOFAR 7K~10.5KTLM-G3 8.3. Efficiency,Protection and Communication SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 7KTLM 7.7KTL 8KTLM 9KTLM 10KTL 10.5KTL M-G3 M-G3 M-G3 Efficiency Max efficiency 98.1% 98.1% 98.1% 98.1% 98.1% 98.1% European weighted 97.3% 97.3% 97.3% 97.3% 97.3% 97.3% efficiency...

  • Page 65: General Date

    User manual SOFAR 7K~10.5KTLM-G3 8.4. General Date SOFAR SOFAR SOFAR SOFAR SOFAR SOFAR Technical Data 7KTLM- 7.7KTLM- 8KTLM- 9KTLM- 10KTLM- 10.5KTLM- General Data Ambient temperature range -30℃~+60℃ Topology Transformerless Degree of protection IP65 Allowable relative humidity 0~100% range Max. operating altitude 4000m Noise <25dB...

  • Page 66: Quality Assurance

    User manual SOFAR 7K~10.5KTLM-G3 9. Quality Assurance Standard warranty period The standard warranty period of inverter is 60 months (5 years).There are two calculation methods for the warranty period: 1. Purchase invoice provided by the customer: the first flight provides a standard warranty period of 60 months (5 years) from the invoice date;...
  • Page 67 User manual SOFAR 7K~10.5KTLM-G3 Invalid warranty clause Equipment failure caused by the following reasons is not covered by the warranty: 1) The "warranty card" has not been sent to the distributor or our company; 2) Without the consent of our company to change equipment or replace parts; 3) Use unqualified materials to support our company 's products, resulting in product failure;...
  • Page 68 ADD: 401, Building 4, AnTongDa Industrial Park, District 68,XingDong Community, XinAn Street, BaoAn District, Shenzhen, GuangDong.P.R. China Email: service@sofarsolar.com Tel: 0510-6690 2300 Web: www.sofarsolar.com...

This manual is also suitable for:

Sofar 7.7ktlm-g3Sofar 8ktlm-g3Sofar 9ktlm-g3Sofar 10ktlm-g3Sofar 10.5ktlm-g3

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