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    "title": "CHT9930A Ground Continuity Tester: 5-60A, 600W",
    "description": "CHT9930A Ground Continuity Tester delivers programmable DC 5-60A output current with 0.01μΩ-600mΩ measurement range for solar module grounding resistance",
    "keywords": "CHT9930A ground continuity tester, solar panel grounding resistance tester, IEC61730 ground continuity test, photovoltaic module grounding test equipment, DC 60A ground resistance tester, solar panel production line testing, ground bonding tester solar mo",
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            "text": "US$ 11000"
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            "text": "Stock: Available | 30~60 days manufacturing time"
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            "text": "Get a Complete Production Line Solution"
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            "text": "Amjad"
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            "text": "Our Latest News & Blog"
        },
        {
            "level": 3,
            "text": "TOPCon Solar Cell Manufacturing Process: Step-by-Step"
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        {
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    "markdown": "# CHT9930A Ground Continuity Tester: 5-60A, 600W\n\n> CHT9930A Ground Continuity Tester delivers programmable DC 5-60A output current with 0.01μΩ-600mΩ measurement range for solar module grounding resistance\n\n#### CHT9930A Ground Continuity Tester: 5-60A, 600W\n\n#### US$ 11000\n\nCHT9930A Ground Continuity Tester delivers programmable DC 5-60A output current with 0.01μΩ-600mΩ measurement range for solar module grounding resistance\n\n##### Stock: Available | 30~60 days manufacturing time\n\n##### Category: Product\n\n##### Tags:\n\n---\n\n---\n\n**Quick answer:** The CHT9930A is a solar module ground continuity tester for measuring the grounding resistance between a module's frame and its output circuit. It tests to IEC 61730, with 5 A and 60 A measurement ranges, RS232 and RS485 output, and a working geometry around 20 mm, serving module lines from 5 MW to 1 GW. Ground continuity is the safety test that confirms the frame is bonded well enough that a fault inside the module trips the system's protection rather than leaving the mounting structure live. The test is pass or fail against a resistance threshold, and it is audited as part of the certification record. Serial output matters because the result has to be traceable to the module it was measured on, not to a batch.\n\nPV Module Manufacturing · by Jerry, Ooitech\n\n## Ground Continuity Tester CHT9930A Overview\n\nThe CHT9930A Ground Continuity Tester is a high-precision grounding resistance measurement instrument specifically designed for photovoltaic module production and quality assurance. Also known as a ground bonding tester, this equipment delivers programmable DC output current from 5A to 60A, accurately simulating real-world operating conditions to verify the electrical continuity and integrity of solar module grounding connections.\n\nWith an ultra-wide measurement range of 0.01μΩ to 600mΩ and a basic accuracy of 1%+3 digits, the CHT9930A ensures reliable and repeatable grounding resistance measurements throughout the solar panel manufacturing process. The instrument fully complies with the international photovoltaic safety standard IEC 61730, making it an essential piece of testing equipment for any solar module production line that demands certified quality assurance.\n\nOoitech supplies complete solar panel production line equipment ranging from 5MW to 1GW capacity, including cell cutting machines, [tabber stringer](https://www.ooitech.com/SS-1500B-Automatic-Solar-Cell-Welding-Machine-High-Speed-Tabber-Stringer-for-BC-TOPCON-PERC-Cells.html)s, [layup machine](https://www.ooitech.com/automatic-solar-cell-layup-machine-ws-cl80d-high-speed-mbb-half-cell-string-laying-equipment-for-solar-panel-production-line.html)s, laminators, [framing machine](https://www.ooitech.com/solar-panel-framing-machine-with-punching-function-and-otzk-a-full-automatic-framing-machine-with-auto-dispensing-glue-ooitech.html)s, EL testers, IV testers, and ground continuity testers like the CHT9930A. Whether you are building a new PV module factory or upgrading existing test stations, Ooitech provides end-to-end solutions covering equipment, raw materials, training, and after-sales service.\n\n## CHT9930A Technical Specifications\n\n### Key Performance Parameters\n\n| Parameter | Specification |\n| --- | --- |\n| Display | 95mm x 20mm Monochrome LCD |\n| Measurement Parameter | Resistance |\n| Basic Accuracy | 1% + 3 digits |\n| Output Current | Programmable DC 5A ~ 60A |\n| Measurement Range | 0.01μΩ ~ 600mΩ |\n| Maximum Output Power | 600W |\n| Range Selection | Automatic |\n| Test Duration | 0.1s ~ 999.9s or Continuous |\n| Comparator | 3 groups of test conditions with storage, audible and visual pass/fail indication |\n| Display Results | Current, Resistance, Sorting Result |\n| Interfaces | Handler / RS232 / RS485 (optional) |\n| Communication Protocol | MODBUS |\n| Power Supply | 198VAC ~ 240VAC, 47Hz ~ 63Hz |\n| Power Consumption | 650VA |\n| Dimensions (L x W x H) | 344mm x 280mm x 99mm |\n| Weight | 5.2kg |\n\n## Technical Advantages of CHT9930A\n\n### Why Choose This Ground Continuity Tester\n\n- **High-Current DC Output (5A~60A):** Programmable DC current output genuinely simulates actual working conditions of solar modules, providing authentic ground continuity verification rather than superficial low-current checks.\n- **Ultra-Wide Measurement Range:** Spanning from 0.01μΩ to 600mΩ with 1%+3 digit accuracy, the CHT9930A covers the full spectrum of grounding resistance values encountered in PV module manufacturing.\n- **IEC 61730 Compliance:** Fully meets the requirements of the international photovoltaic safety standard IEC 61730, ensuring your solar modules pass certification testing and meet global market access requirements.\n- **Test Lead Anomaly Detection:** Built-in test cable abnormality detection function prevents measurement misjudgment caused by poor connections, broken leads, or improper contact, safeguarding production quality.\n- **Three-Group Comparator with Pass/Fail Sorting:** Store up to three sets of test conditions for programmable testing and automatic sorting with clear audible and visual pass/fail indications, streamlining quality control workflows.\n- **Flexible Communication Interfaces:** Standard Handler and RS232 interfaces with optional RS485 support and MODBUS communication protocol enable seamless integration into automated test systems and factory-wide equipment networking.\n- **Programmable Test Duration:** Adjustable test time from 0.1 seconds to 999.9 seconds or continuous mode accommodates various testing standards and production throughput requirements.\n- **Compact and Production-Ready Design:** At only 344mm x 280mm x 99mm and 5.2kg, the unit fits easily into existing production lines, test benches, or automated handling systems.\n\n## Application Scenarios\n\n### Solar Panel Production Line Quality Control\n\nThe CHT9930A is an indispensable testing instrument at the final stage of solar panel production lines. After framing and [junction box](https://www.ooitech.com/junction-box-welding-machine-ks-01c-automatic-solar-panel-junction-box-soldering-equipment-ooitech.html) attachment, every module must undergo ground continuity testing to ensure the frame, mounting points, and grounding terminals maintain low-resistance electrical paths. This test verifies that the module will safely conduct fault currents to ground in real-world installations, protecting both equipment and personnel.\n\n### IEC 61730 Certification Testing\n\nFor solar module manufacturers seeking IEC 61730 certification, ground continuity testing is a mandatory safety requirement. The CHT9930A provides the precise high-current DC output and accurate low-resistance measurement capability required by the standard, supporting manufacturers through the certification process.\n\n### Automated Production Line Integration\n\nWith Handler, RS232, and optional RS485 interfaces supporting MODBUS protocol, the CHT9930A integrates directly into fully automated solar panel production lines. Combined with automated handling systems, the tester performs ground continuity measurements and automatic pass/fail sorting without manual intervention, maximizing production efficiency.\n\n### Incoming Quality Inspection and Spot Checks\n\nSolar panel distributors, EPC companies, and project developers use ground continuity testers for incoming inspection of module shipments. The three-group comparator function allows operators to quickly switch between test profiles for different module types and specifications.\n\n### Compatible Solar Module Types\n\nThe CHT9930A supports ground continuity testing for a comprehensive range of solar module technologies including PERC, [TOPCon](https://www.ooitech.com/what-is-topcon-solar-cell-a-complete-guide-to-tunnel-oxide-passivated-contact-technology.html), IBC, ABC, HPBC, Shingled, and HJT modules across all mainstream cell sizes such as G1, M6, M10, and M12 formats.\n\n## Contact Ooitech for Your Solar Panel Production Line\n\n### Get a Complete Production Line Solution\n\nOoitech specializes in designing and delivering turnkey solar panel production lines from 5MW to 1GW capacity. The CHT9930A Ground Continuity Tester is one essential component within our complete range of production and testing equipment. We provide full project support including equipment selection, factory layout planning, installation, commissioning, operator training, raw material supply, and lifetime after-sales service.\n\nTo learn more about the CHT9930A Ground Continuity Tester or to discuss your complete solar panel production line requirements, please contact our team:\n\n- **Email:** [info@ooitech.com](mailto:info@ooitech.com)\n- **Phone:** +8618571646990\n- **WhatsApp:** +8615961592660\n- **Head Office:** Wuhan Yangtze River Center, Wuhan, China\n\nDownload our complete product catalog: [Ooitech Catalog Download](https://drive.google.com/file/d/1EWA3TV6hJb_cAUH6w0UENpRglAgq_Kzv/view?usp=sharing)\n\nDownload Ooitech company profile: [Company Profile Download](https://drive.google.com/file/d/1yg9NLXzLOmPWriYScQZeM6ZfSZ8gcQ88/view?usp=sharing)\n\nWatch our solar panel production line in action on YouTube and subscribe for the latest factory setup guides and equipment demonstrations: [Ooitech YouTube Channel](https://www.youtube.com/ooitech)\n\nSee our MBB Full Automatic Solar Panel Production Line: [Watch Video](https://www.youtube.com/watch?v=uRS9sn94sIQ)\n\n## Related Items\n\n![Solar Cell Layup Machine WS-CL80D: 48s Cycle, ±0.1mm](https://cdn.ooitech.com/static/upload/image/20260324/1774318047382785.webp)\n\n#### Solar Cell Layup Machine WS-CL80D: 48s Cycle, ±0.1mm\n\n![GC-1500 EVA/TPT Online Cutting & Laying Machine](https://cdn.ooitech.com/static/upload/image/20260324/1774350387657887.webp)\n\n#### GC-1500 EVA/TPT Online Cutting & Laying Machine\n\n![CHT9930A Ground Continuity Tester: 5-60A, 600W](https://cdn.ooitech.com/static/upload/image/20260327/1774605285835810.webp)\n\n#### CHT9930A Ground Continuity Tester: 5-60A, 600W\n\n![SPZ-A Junction Box Glue Filling Machine: ±2% Metering](https://cdn.ooitech.com/static/upload/image/20260326/1774504501115202.webp)\n\n#### SPZ-A Junction Box Glue Filling Machine: ±2% Metering\n\n![OSLB-1300 BC Cell Stringer: 1000 Cells/h, ±0.10mm](https://cdn.ooitech.com/static/upload/image/20260323/2026032311945973.png)\n\n#### OSLB-1300 BC Cell Stringer: 1000 Cells/h, ±0.10mm\n\n![Robot String Cell Layup HS-PBR: 5s/String, ±0.3mm](https://cdn.ooitech.com/static/upload/image/20260324/1774338062497258.webp)\n\n#### Robot String Cell Layup HS-PBR: 5s/String, ±0.3mm\n\n![Non-Destructive Solar Cell Laser Cutting Machine](https://cdn.ooitech.com/static/upload/image/20260323/1774252043927784.webp)\n\n#### Non-Destructive Solar Cell Laser Cutting Machine\n\n![Automatic Tape Sticking Machine: 25s Cycle, ±2mm](https://cdn.ooitech.com/static/upload/image/20260324/1774350079476146.webp)\n\n#### Automatic Tape Sticking Machine: 25s Cycle, ±2mm\n\n![](/template/ooitech/assets/img/shape/06.png)\n\n![](https://cdn.ooitech.com/runtime/image/w800_h700_fitblur_v2_w800_h700_fitblur_v2_1757399770541443.webp)\n\n### Request A Quote\n\nAll uploads are secure and confidential.\n\n## We deliver expertise you can trust our service\n\nDirect-from-Factory Equipment.\n\n![](/template/ooitech/assets/img/icon/money-2.svg)\n\n### Cost-Effective Advantages\n\nWe deliver exceptional value, maximizing results while optimizing budgets for clients.\n\n![](/template/ooitech/assets/img/icon/staff.svg)\n\n### Our Experience Team\n\nOur skilled professionals specialize in innovative solutions and tailored strategies.\n\n![](/template/ooitech/assets/img/icon/certified.svg)\n\n### 15+ Years Industry Experience\n\nDeep expertise ensures reliable, trend-aware, and proven outcomes for success.\n\n![](https://cdn.ooitech.com/static/upload/image/20250910/1757477357667605.webp)\n\n![](https://cdn.ooitech.com/static/upload/image/20250910/1757477724911512.webp)\n\n![](/template/ooitech/assets/img/shape/06.png)\n\n## What Our Client Say's about us\n\nClient testimonials praise our deep understanding of their challenges, which leads to innovative solutions and strong ROI. Long-term collaborations—some over a decade—demonstrate their trust and satisfaction. Their success stories drive us to continually exceed expectations. [Know More **](#quote-form)\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nthank you for ooitech's professional support and on time after service.\n\n![Diarra From Africa](https://cdn.ooitech.com/runtime/image/w160_h160_fitblur_v2_1784509010217979.webp)\n\n### Diarra From Africa\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nThank you again so much again for the very big big help for improving and fixing the factory and also teaching the workers how to use the machines\n\n![Mark](https://cdn.ooitech.com/runtime/image/w160_h160_fitblur_v2_1757479675272137.webp)\n\n### Mark\n\nBIPV Philippines\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nThanks to Ooitech for providing highly suitable BC solar cell experimental equipment.\n\n![KTECH](https://cdn.ooitech.com/runtime/image/w160_h160_fitblur_v2_1776426122864564.webp)\n\n### KTECH\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nA man with a big soul. Thank you very much for your visit Mr Wu. Thank you very much for the services provided in installing equipment and training my students. The kindest person and professional in his field\n\n![Jizzakh Polytechnic Institute](https://cdn.ooitech.com/runtime/image/w160_h160_fitblur_v2_2026041716444445.webp)\n\n### Jizzakh Polytechnic Institute\n\n![](/template/ooitech/assets/img/icon/quote.svg)\n\nThanks to Ooitech for providing the fully automated production equipment—your installation and after-sales service have been excellent.\n\n![Amjad](https://cdn.ooitech.com/runtime/image/w160_h160_fitblur_v2_2026041720921238.webp)\n\n### Amjad\n\n## Our Latest News & Blog\n\n![TOPCon Solar Cell Manufacturing Process: Step-by-Step](https://cdn.ooitech.com/runtime/image/w320_h200_fitblur_v2_3fffaa885dcfbafc7d41439c979f3e14.webp)\n\n- [** ooitech](./topcon-solar-cell-manufacturing-process-a-complete-step-by-step-guide.html)\n- [** 3053](./topcon-solar-cell-manufacturing-process-a-complete-step-by-step-guide.html)\n\n### TOPCon Solar Cell Manufacturing Process: Step-by-Step\n\nTOPCon stands for Tunnel Oxide Passivated Contact. 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What Egyptian buyers ask, and how much space each capacity needs.\n\n![Triple-Junction GaAs Solar Cell — Structure and Gains](https://cdn.ooitech.com/runtime/image/w320_h200_fitblur_v2_ooitech-triple-junction-gaas-structure-cover.webp)\n\n- [** ooitech](./triple-junction-gaas-solar-cells-a-detailed-look-at-the-mainstream-space-photovoltaic-structure.html)\n- [** 1575](./triple-junction-gaas-solar-cells-a-detailed-look-at-the-mainstream-space-photovoltaic-structure.html)\n\n### Triple-Junction GaAs Solar Cell — Structure and Gains\n\nTriple-junction GaAs solar cell: how three stacked junctions split the spectrum, why efficiency passes 30%, and where cost limits concentrator use.\n\n![American Green Energy Company Purchases Ooitech](https://cdn.ooitech.com/runtime/image/w320_h200_fitblur_v2_2026032780265832.webp)\n\n- [** ooitech](./american-green-energy-company-purchases-ooitech-automatic-ribbon-cutting-machine-in-2014.html)\n- [** 1516](./american-green-energy-company-purchases-ooitech-automatic-ribbon-cutting-machine-in-2014.html)\n\n### American Green Energy Company Purchases Ooitech\n\nIn 2014, a green energy company from the United States purchased the Ooitech automatic ribbon cutting and bending machine for their solar panel production\n\n![SUNUSA Orders 5MW Semi-Automatic Solar Panel Production](https://cdn.ooitech.com/runtime/image/w320_h200_fitblur_v2_2026041512063502.webp)\n\n- [** ooitech](./sunusa-orders-5mw-semi-automatic-solar-panel-production-line-from-ooitech-in-2014.html)\n- [** 1379](./sunusa-orders-5mw-semi-automatic-solar-panel-production-line-from-ooitech-in-2014.html)\n\n### SUNUSA Orders 5MW Semi-Automatic Solar Panel Production\n\nIn 2014, Indian solar manufacturer SUNUSA purchased a 5MW semi-automatic solar panel production line from Ooitech to expand domestic solar module\n",
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