CHT9980A/CHT9981A PV Safety Comprehensive Tester — High-Performance 3-in-1 Hipot, Insulation & Ground Continuity Tester for Solar Panel Production Lines




The CHT9980A/CHT9981A PV Safety Comprehensive Tester is a high-performance, three-in-one safety compliance instrument specifically developed for automated testing in the photovoltaic industry. This advanced tester integrates DC withstand voltage (hipot) testing, insulation resistance testing, and ground continuity testing into a single compact unit, making it an essential piece of equipment for any solar panel production line.
Designed to comply with international photovoltaic standards IEC 61215 and IEC 61730, the CHT9980A/CHT9981A ensures that every solar module leaving the production line meets the most stringent safety requirements. The instrument comes equipped with standard data acquisition software and supports USB flash drive remote firmware upgrades, allowing for convenient on-site maintenance and future-proof operation.
Beyond photovoltaic applications, this versatile tester is also suitable for safety testing of household appliances, electronic instruments, electronic equipment, electronic components, wires, cables, and a wide range of other electrical products. With built-in pass/fail judgment, audible and visual alarm functions, and automatic test time control, the CHT9980A/CHT9981A offers reliable, efficient, and user-friendly safety compliance testing.
Technical Specifications
DC Withstand Voltage (Hipot) Test
| Parameter | CHT9980A | CHT9981A |
|---|
| Voltage Range | 0 – 8,000 V | 0 – 10,000 V |
| Voltage Resolution | 0.001 kV | 0.001 kV |
| Voltage Accuracy | 3% | 3% |
| Current Range | 0 – 5 mA | 0 – 5 mA |
| Current Resolution | 0.1 uA | 0.1 uA |
| Current Accuracy | 2% | 2% |
Insulation Resistance Test
| Parameter | CHT9980A | CHT9981A |
|---|
| Voltage Range | 0 – 2,000 V | 0 – 3,000 V |
| Voltage Resolution | 0.001 kV | 0.001 kV |
| Voltage Accuracy | 3% | 3% |
| Resistance Range | 0.1 MOhm – 50 GOhm | 0.1 MOhm – 99 GOhm |
| Resistance Accuracy (100 kOhm – 999 MOhm) | +/-(2% of reading + 3 digits) | +/-(2% of reading + 3 digits) |
| Resistance Accuracy (1.00 GOhm – 9.99 GOhm) | +/-(5% of reading + 3 digits) | +/-(5% of reading + 3 digits) |
| Resistance Accuracy (10 GOhm – 50 GOhm / 99 GOhm) | +/-(20% of reading + 3 digits) | +/-(20% of reading + 3 digits) |
Ground Continuity (Earth Resistance) Test
| Parameter | CHT9980A | CHT9981A |
|---|
| Current Range | 10 A – 60 A | 10 A – 80 A |
| Current Resolution | 0.01 A | 0.01 A |
| Current Accuracy | 2% | 2% |
| Resistance Range (10.00 A – 20.00 A) | 0 – 600.00 mOhm | 0 – 600.00 mOhm |
| Resistance Range (20.01 A – 30.00 A) | 0 – 300.00 mOhm | 0 – 300.00 mOhm |
| Resistance Range (30.01 A – 40.00 A) | 0 – 200.00 mOhm | 0 – 200.00 mOhm |
| Resistance Range (40.01 A – 50.00 A) | 0 – 150.00 mOhm | 0 – 150.00 mOhm |
| Resistance Range (50.01 A – 60.00 A) | 0 – 120.00 mOhm | 0 – 120.00 mOhm |
| Resistance Range (60.01 A – 70.00 A) | N/A | 0 – 100.00 mOhm |
| Resistance Range (70.01 A – 80.00 A) | N/A | 0 – 80.00 mOhm |
| Resistance Resolution | 0.001 mOhm | 0.001 mOhm |
| Resistance Accuracy | 2% | 2% |
General Specifications
| Parameter | Specification |
|---|
| Interface | RS232, I/O (PLC Control Interface) |
| Dimensions | 427 mm x 406 mm x 87 mm |
| Weight | 18 kg |
| Firmware Upgrade | USB flash drive remote upgrade |
| Software | Standard data acquisition software included |
| Standards Compliance | IEC 61215, IEC 61730 |


Technical Advantages
Three-in-One Comprehensive Testing
The CHT9980A/CHT9981A combines DC withstand voltage (hipot), insulation resistance, and ground continuity testing into a single instrument, eliminating the need for multiple standalone testers. This integrated design reduces equipment footprint, simplifies wiring, and streamlines the testing workflow on your solar panel production line.
Full Automation Capability with PLC Interface
Equipped with both RS232 communication and I/O (PLC control) interfaces, this tester is purpose-built for integration into fully automated solar module production lines. Connect it directly to your PLC system to achieve seamless, hands-free safety testing at production speed without manual intervention.
Configurable Pass/Fail Judgment with Audible and Visual Alarms
Operators can set upper and lower limit thresholds for each test parameter. When a test result falls outside the acceptable range, the instrument triggers both audible and visual alarms, effectively eliminating the risk of defective products passing through undetected and ensuring 100% quality screening.
Four-Wire Measurement for Maximum Accuracy
The ground continuity test employs a four-wire (Kelvin) measurement technique, which completely eliminates the influence of test lead resistance from the measurement. This ensures highly precise and repeatable resistance readings, which is critical for verifying the safety integrity of solar module grounding connections.
User-Friendly Full Keyboard Operation
The intuitive full-keyboard interface makes parameter setting and test operation straightforward and efficient. Operators can quickly configure test sequences, voltage levels, current limits, and timing parameters, reducing setup time and minimizing the potential for operator errors.
Fast Overcurrent Cut-Off Protection
The instrument features rapid overcurrent cut-off circuitry that immediately terminates the test output when an abnormal current is detected. This protects both the device under test (DUT) and the operator, ensuring safe operation even when testing defective modules.
IEC 61215 and IEC 61730 Compliance
The CHT9980A/CHT9981A fully meets the testing requirements specified in IEC 61215 (Design Qualification and Type Approval for Crystalline Silicon Terrestrial Photovoltaic Modules) and IEC 61730 (Photovoltaic Module Safety Qualification), making it an ideal instrument for both production-line quality control and type-approval testing.
Applications
The CHT9980A/CHT9981A PV Safety Comprehensive Tester is widely used across the photovoltaic manufacturing industry and beyond:
Solar Photovoltaic Module Production
As an essential end-of-line testing instrument, the CHT9980A/CHT9981A performs mandatory safety compliance testing on finished solar panels, including PERC, TOPCon, IBC, ABC, HPBC, shingled, and MBB modules in G1, M6, M10, and M12 cell formats. It is a critical component in any complete solar panel production line from Ooitech.
DC Withstand Voltage (Hipot) Testing
The hipot test applies a high DC voltage between the solar module's active circuitry and its frame or backsheet to verify that the electrical insulation can withstand voltage stresses far exceeding normal operating conditions. The standard test voltage is typically calculated as 2 x rated working voltage + 1,000 V.
Insulation Resistance Testing
This test measures the resistance between the module's live conductors and its enclosure or frame by applying a constant DC voltage (typically 500 V or 1,000 V) for a specified duration. A sufficiently high insulation resistance value confirms that the module's dielectric barriers are intact and will prevent leakage current during operation.
Ground Continuity Testing
The ground continuity test verifies the quality of the electrical connection between the module's grounding point and its metallic frame by passing a high current (up to 60 A or 80 A) through the grounding path. Low contact resistance confirms that, in the event of an insulation failure, fault current will be safely conducted to ground.
Wet Leakage Current Testing
The instrument supports wet leakage current testing procedures, which simulate real-world exposure to moisture and verify that the module maintains adequate insulation performance under wet conditions, a critical requirement under IEC 61215.
General Electrical Safety Testing
Beyond photovoltaics, the CHT9980A/CHT9981A is suitable for safety compliance testing of household appliances, electronic instruments, electronic equipment, electronic components, wires, cables, and other electrical products requiring hipot, insulation, and ground resistance verification.
Contact Ooitech to Order the CHT9980A/CHT9981A PV Safety Comprehensive Tester
Ooitech is a leading provider of complete solar panel production line equipment, from 5 MW to 1 GW capacity, covering everything from cell laser cutting, tabber stringers, layup machines, laminators, framing machines, EL testers, IV testers (sun simulators), and safety compliance instruments like the CHT9980A/CHT9981A.
Whether you are building a new solar panel factory or upgrading your existing production line, Ooitech delivers end-to-end solutions including equipment design, delivery, installation, operator training, raw material supply, and after-sales service.
To learn more about the CHT9980A/CHT9981A PV Safety Comprehensive Tester or to request a quotation for your solar panel production line, contact us today:
Email: [email protected]Phone: +86 18571646990WhatsApp: +86 15961592660Head Office: Wuhan Yangtze River Center, Wuhan, ChinaWebsite: www.ooitech.com
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