Hopetech specializes in the R&D and manufacturing of electrical-safety and precision test instruments. With years of experience in the PV and energy-storage industry, we have built an integrated test-equipment matrix to meet full-lifecycle testing requirements for PCS inverters. Our instruments support R&D validation, mass-production testing and extreme-condition reliability tests, and are suitable for compliance inspection of residential, central and string-type PCS inverters.

- HT9914 Comprehensive Safety Tester — All–Round Quality Inspector for the SolutionIt performs four-in-one tests including hipot, insulation resistance, earth resistance and diode measurement. Suitable for pre-shipment full safety testing of central and string-type inverters, it completes basic compliance verification in a single run.
- HT9985A/B Comprehensive Safety Tester — Efficient Rapid-Test Officer for Mass-Production LinesIt delivers three-in-one testing for hipot, insulation resistance and earth resistance. Equipped with no-load test error-proof function and standard PLC interface, it can be easily integrated into automated production lines to satisfy high-volume rapid testing for small-to-medium-power residential inverters.
- CHT9951A/B High-Voltage Hipot Tester — High-Voltage Limit Examiner for Harsh Operating ConditionsIt provides a maximum output of 15 kV and is equipped with arc-detection function. It verifies the insulation withstand capability of high-voltage central inverters and identifies potential breakdown risks under high-voltage stress.
- CHT9931A Earth Continuity Tester — Earthing Safety Officer for Electrical-Risk PreventionWith high-current output, it accurately measures low resistance of earthing loops. It verifies the earthing performance of inverter enclosures to mitigate electric-leakage hazards and comply with power-station safety specifications.
- DT3115B / DP3185B Air-Tightness Tester — Sealing Inspector for Outdoor ReliabilityAdopting high-precision differential-pressure measurement, it tests the IP waterproof sealing performance of inverter enclosures and ensures stable operation of equipment in complex outdoor environments.Hopetech’s PCS inverter test solution combines multiple specialized test instruments to cover all core test items for PCS inverters: safety compliance, high-voltage performance, earthing protection and sealing performance. Supporting both R&D reliability validation and mass-production line inspection, our solution helps customers accelerate product compliance certification, detect defects in advance and reduce failure risks of outdoor power-station operation.
Test Solution Details Table
Test Category Application Scenario / Material Equipment Core Equipment Functions PV & Energy-Storage PCS Inverter Full pre-shipment safety test for inverters HT9914 Comprehensive Safety Tester Four-in-one test: hipot, insulation resistance, earth resistance and diode measurement; for safety inspection of central & string-type inverters Rapid mass-production safety test for small-to-medium-power residential inverters HT9985A/B Comprehensive Safety Tester Three-in-one hipot / insulation / earth-resistance test; no-load error-proof function; standard PLC interface for automated-line integration Extreme hipot & breakdown test for high-voltage central inverters CHT9951A/B High-Voltage Hipot Tester Max. 15 kV output, built-in arc detection; verifies high-voltage insulation reliability Enclosure earthing-resistance test for electric-leakage-protection validation CHT9931A Earth Continuity Tester High-current output, accurate low-resistance earthing-loop measurement; meets power-station safety requirements IP waterproof-sealing-performance test for inverters DT3115B / DP3185B Air-Tightness Tester High-precision differential-pressure testing; verifies outdoor waterproof reliability