In recent years, there have been reports of cases where high-efficiency solar cells (such as N-type and half-cut cells) cannot measure I-V curves using competitor products or the old Epsilon 1000 (PVA14300). However, measurement is possible with the current Epsilon 1000 (PVA14300R) and Epsilon 1500 (PVA18340). Both the current and old models of Epsilon have a built-in overcurrent detection circuit, which prevents equipment failure by cutting off the current and stopping I-V curve measurement if the measurable current exceeds 30 [A] (when overcurrent is detected). High-efficiency solar cells tend to have a large inrush current flowing into the Epsilon, leading to a higher frequency of measurement stoppages due to overcurrent detection with the old Epsilon. Even if the catalog value of the solar cell is around 15 [A], the actual output current can momentarily exceed 30 [A] significantly. The current Epsilon is equipped with an inrush current prevention circuit that performs gradual short-circuit processing. This suppresses the occurrence of overcurrent during short circuits, making measurement possible even when the capacitive component of the PV is large. Measurement is also possible with the Gamma series and Delta.

This device, which can apply loads equivalent to actual operation on solar cells, is widely used for research and development purposes. To accommodate the latest technologies such as perovskite solar cells, we are preparing to expand the maximum input power and add new control methods. A renewal is scheduled for October 2025. Main renewal contents: - Simplified I-V curve measurement capability - Increase in main unit capacity from 300 [W] to 500 [W] - Addition of a new MPPT control method We have created a flyer, so please take a look!

Our (Chuo Ward, Osaka) grid connection testing environment has been renewed! ● Testing capacity has increased! 6 [kW] → 8 [kW] ● Smooth automatic testing is possible using the "Grid Connection Automatic Testing Software." https://www.kernel-sys.co.jp/product/autoTest/ ● A new product, "Testing Script Creation Software," is also available. https://www.kernel-sys.co.jp/product/autoTest/testscript_index.html You can also utilize partial tests, such as "remote output control function testing only" or "standalone operation testing only," on an hourly basis. ▼ For more details ▼ https://www.kernel-sys.co.jp/support/p_pdf/AutomaticTest.pdf Our staff will be present to support the testing. Consultation on test content, contracting for tests, and site visits are also possible, so please feel free to contact us!

Our testing environment for grid connection in Chuo Ward, Osaka City is being renewed! Starting in July, we will operate in a new testing facility, so let us introduce it. ● Testing capacity has increased! 6 [kW] → 8 [kW] ● Smooth automatic testing is possible using the "Grid Connection Automatic Testing Software." https://www.kernel-sys.co.jp/product/autoTest/ ● You can also use our new product, the "Testing Script Creation Software." https://www.kernel-sys.co.jp/product/autoTest/testscript_index.html You can utilize partial tests such as "remote output control function tests only" or "standalone operation tests only" on an hourly basis. ▼ For more details ▼ https://www.kernel-sys.co.jp/support/p_pdf/AutomaticTest.pdf Our staff will be present to support the testing. Consultation on test content, contracting for tests, and facility tours are also available, so please feel free to contact us!

Thank you for your patience. The new Epsilon 1000 is now available for sale! ▽ For product details, click here ▽ http://www.kernel-sys.co.jp/product/Epsilon1000/ We also offer demo units for loan and explanations via the web, so please feel free to contact us. While we can't say it's a New Year's big sale, we will be offering a complimentary mobile battery option for the first production lot, so if you're interested, please take this opportunity to inquire!

★Major Renewal★ - Achieved shorter measurement intervals for I-V measurements - Increased work efficiency with automatic measurement function - Improved visibility with larger display - Long operation time with mobile battery - Compact and lightweight for easy portability - Supports Japanese/English Other features as before: - Simple operability (No prior settings required; measurement possible with one button) - Short measurement time (Approximately 1 second until result display; less affected by sudden changes in sunlight or shadows) - High-precision measurement (Built-in multiple large-capacity capacitor loads) - Measurement of high current up to 30[A] (Supports the increasing current of recent solar cells) - Clear graph display with 1024-point measurement - Stores up to 9999 data points in internal memory - Reverse connection, overcurrent, and overvoltage detection functions (misuse detection) - Scheduled measurements possible with remote operation via computer