Ground Continuity Tester CHT9930A Overview

The 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.

With 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.

Ooitech supplies complete solar panel production line equipment ranging from 5MW to 1GW capacity, including cell cutting machines, tabber stringers, layup machines, laminators, framing machines, 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.

CHT9930A Technical Specifications

Key Performance Parameters

Technical Advantages of CHT9930A

Why Choose This Ground Continuity Tester

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

• 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.

Application Scenarios

Solar Panel Production Line Quality Control

The CHT9930A is an indispensable testing instrument at the final stage of solar panel production lines. After framing and junction box 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.

IEC 61730 Certification Testing

For 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.

Automated Production Line Integration

With 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.

Incoming Quality Inspection and Spot Checks

Solar 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.

Compatible Solar Module Types

The CHT9930A supports ground continuity testing for a comprehensive range of solar module technologies including PERC, TOPCon, IBC, ABC, HPBC, Shingled, and HJT modules across all mainstream cell sizes such as G1, M6, M10, and M12 formats.

Contact Ooitech for Your Solar Panel Production Line

Get a Complete Production Line Solution

Ooitech 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.

To learn more about the CHT9930A Ground Continuity Tester or to discuss your complete solar panel production line requirements, please contact our team:

• Email: [email protected]

• Phone: +8618571646990

• WhatsApp: +8615961592660

• Head Office: Wuhan Yangtze River Center, Wuhan, China

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