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  3. Nippon Kernel System CO., LTD.
  4. Our new I-V curve tracer can measure "high-efficiency solar cells" such as N-type, half-cut cells, and N-type back contact.
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  • Jul 02, 2025
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Jul 02, 2025

Our new I-V curve tracer can measure "high-efficiency solar cells" such as N-type, half-cut cells, and N-type back contact.

Nippon Kernel System CO., LTD. Nippon Kernel System CO., LTD.
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.
Measurement is possible with the above four models.
Measurement is possible with the above four models.
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高効率太陽電池のIVカーブ計測について_日本カーネルシステム株式会社.pdf[987295]

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Measurement of I-V Curves for High-Efficiency Solar Cells (2)

Recently sold high-efficiency solar cells PVA14300R, PVA18340, PVA11270, and PVA14301 can be measured using I-V measurements.

In recent years, there have been reports of cases where I-V curves cannot be measured for high-efficiency solar cells (such as N-type and half-cut cells) using products from other companies or the old model Epsilon 1000 (PVA14300) PV analyzer. However, it is possible to measure them using the current Epsilon 1000 (PVA14300R), Epsilon 1500 (PVA18340), Gamma series (PVA11270, PVA14301), and Delta (PVA11272) PV analyzers, which will be explained in this document.

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I-V curve tracer *Measurement of N-Type solar cells is also possible!

You can easily see the power generation status of the solar power generation system at the string unit level! An I-V curve tracer that is ideal for completion inspections and regular inspections of mega-solar systems!

The PV Analyzer "Epsilon 1000/1500" is an I-V curve measurement device capable of measuring new high-efficiency solar cells. It is the most popular measuring instrument for assessing the actual power generation of PV power systems. 【Features】 ■ Current measurement up to a maximum of 30[A] Supports I-V measurements for various types of solar cells, including N-Type, half-cut cells, and bifacial types! ■ Short measurement time (approximately 1 second until result display, less affected by sudden changes in sunlight) ■ Simple operability (screen supports Japanese display, easy measurement with one button) ■ Internal data storage capacity of 9999 entries, suitable for large-scale power plants ■ When used simultaneously with the measurement unit (CMU12281) [sold separately] and connected to a PC, I-V curve data can be combined with irradiance and temperature data and automatically saved to the PC (using the included software) (Data can also be combined later using PC software) * For more details, please download the PDF or feel free to contact us. * Demo units are available for loan (approximately one week). The Epsilon 1500 is also available for rental.

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I-V curve tracer (PV analyzer) 'Epsilon 1000'-PVA14300R-

Solar cell strings with a system voltage of up to 1000V can be measured. Reliable I-V measurement with a linear sweep within 200 [ms]!

This is an I-V curve tracer compatible with the voltage range of 1000V, suitable for many residential and industrial solar power generation systems. It is an I-V curve tracer for solar cell strings that supports 1000V/30A. The functionality has been significantly renewed from the old PVA14300 model! It can store up to 9999 data points in internal memory, displays results in about 1 second, and allows for short-duration measurements that are less affected by sudden changes in sunlight or shading. 【Features】 - Capable of measuring 1000[V] and 30[A] (can also measure ultra-high output modules such as parallel strings and bifacial modules) - Measurement interval shortened to 5-12 seconds (varies depending on the measurement target) - Equipped with an automatic measurement function (manual/automatic selection available) - Added Japanese mode to the operation guide (English option also available) - Safe operation with reverse connection detection function (misuse detection) - Internal data storage capacity of 9999 points, suitable for large-scale power plants.

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I-V curve tracer (PV analyzer) 'Epsilon 1500'-PVA18340-

PV strings with a system voltage of up to 1500V can be measured. Reliable I-V measurements with a linear sweep within 200 ms!

The "Epsilon 1500" is an I-V curve tracer that supports a voltage range of 1500V, suitable for large industrial solar power generation systems. It is an I-V curve tracer for solar cell strings compatible with 1500V/30A. The functions have been significantly renewed from conventional models. It can store up to 9999 data points in internal memory, displays results in about 1 second, and allows for short-term measurements that are less affected by sudden changes in sunlight or shading. 【Features】 - Capable of measuring 1500[V] and 30[A] (can also measure ultra-high output modules such as parallel strings and bifacial modules) - Added a Japanese mode to the operation guide (English is also selectable) - Equipped with reverse connection detection for safe operation (misuse detection) - Uses MC4 connectors for measurement connections, ensuring reliable and safe measurements - Has a voltage tester function, allowing for continuous voltage measurement up to 1500[V] - Internal data storage capacity of 9999 points, suitable for large-scale power plants.

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I-V Curve Tracer [PV Analyzer Gamma 600/1000]

High-precision IV curve measurement device. Detailed measurement settings and automatic measurements can be performed without a PC. Ideal for the development and research of solar cells, such as outdoor exposure tests. [Demo unit available for loan◎]

We have adopted an electronic load method to achieve high-performance I-V curve measurement. Based on customer requirements, we will configure a solar cell evaluation system centered around this device. We can also propose systems such as measurement systems in open state and grid-connected measurement systems using power conditioners. Of course, it can also be used for maintenance purposes. ◆ Variable sweep direction: short circuit → open circuit, open circuit → short circuit, etc. ◆ Variable sweep time: 150[ms] to 1000[ms] ◆ I-V curves can be checked on-site using a high-resolution color monitor ◆ Measurement of special solar cells (CPV) from a single unit is possible ◆ Clear graph display through 1024-point measurement * For more details, please download the PDF or feel free to contact us. * Demo units are also available for loan, so please get in touch.

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I-V Curve Tracer [PV Analyzer Delta]

I-V curve tracer that measures the generation quadrant and reverse voltage quadrant with electronic load function and reverse voltage application function [Demo unit available for loan◎].

In addition to measuring the power generation quadrant characteristics of solar cells, measuring the reverse voltage quadrant characteristics allows for accurate short-circuit current (Isc) measurements and also enables the measurement of bypass diode characteristics within the solar cells. We will configure a solar cell evaluation system centered around this device to meet customer requirements. We can also propose systems such as measurement systems in an open state and grid-connected measurement systems using power conditioners. ◆ The electronic load and reverse voltage application function allow for I-V curve checks in both the power generation quadrant and the reverse voltage quadrant. ◆ The sweep direction is variable: short-circuit to open-circuit, open-circuit to short-circuit, etc. ◆ The sweep time is variable: 150 [ms] to 1000 [ms]. ◆ I-V curves can be checked on-site using a high-resolution color monitor. ◆ Measurements can be taken from a single special solar cell (CPV). ◆ Clear graph displays are achieved through 1024-point measurements. * For more details, please download the PDF or feel free to contact us. * Demo units are also available for loan, so please get in touch.

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Rental of the I-V curve tracer "Epsilon 1500" has begun!

Due to the requests of many customers, we have started renting out the PV analyzer "Epsilon 1500" for completion inspections and spot inspections of solar power plants!

The "Epsilon 1500V" is an IV curve tracer designed for the maintenance of high-voltage solar power generation systems. Building on the features of the PV analyzer "Epsilon 400/1000," it achieves 1500[V] measurement. 【Features】 ■ Short measurement time (approximately 1 second until result display; less affected by sudden changes in sunlight or shadows) ■ Simple operability (measurement possible with one button, no prior settings required) ■ By connecting this device and the measurement unit (CMU12281, available for simultaneous rental) to a PC, synchronization of I-V curves with sunlight and temperature data is possible (using the included software) ■ Uses MC4 connectors for the measurement connection, ensuring reliable and safe measurements ■ Equipped with a voltage tester function, capable of measuring voltages up to 1500[V] continuously *For more details, please check the URL below or feel free to contact us. http://www.kernel-sys.co.jp/product/rental/nks_rental.html

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Results in about 1 second! IV measurement of solar power generation at 1500V high voltage.

Short-term measurements that display results in about 1 second are possible! Ideal for completion inspections and regular inspections of power generation systems! Available for both sale and rental. *Catalog available.

The "Epsilon 1500V" is an I-V curve tracer designed for the maintenance of high-voltage solar power generation systems. Building on the features of the PV Analyzer "Epsilon 400/1000," it achieves 1500[V] measurement. 【Features】 ■ Short measurement time (approximately 1 second until result display; less affected by sudden changes in sunlight or shadows) ■ Simple operability (no prior settings required; measurement can be done with one button) ■ By connecting this device and the measurement unit (CMU12281, sold separately) to a PC simultaneously, synchronization of I-V curves with solar radiation and temperature data is possible (using the included software) ■ Uses MC4 connectors for measurement connections, ensuring reliable and safe measurements ■ Equipped with a voltage tester function, capable of measuring voltages up to 1500[V] at all times *For more details, please download the PDF or feel free to contact us.

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Related catalog(1)

Measurement of I-V Curves for High-Efficiency Solar Cells (2)

Measurement of I-V Curves for High-Efficiency Solar Cells (2)

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Nippon Kernel System CO., LTD.
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Fukuda's leak test, leak inspection, leak detection, leak test, integrity test.

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Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Jan 29, 2026

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Super Sensor Series "HA-400" "HA-520"

The "HA Series" doorway monitoring function sensor from Hotron protects your safe and comfortable passage with automatic door sensors!

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Hotron's "HA Series" is a high-function doorway monitoring sensor. Even with high doors of 4.0m, it ensures safety while proposing an open and inviting entrance through its doorway monitoring feature. 【Surface Mount Type HA-400】 ○ Safe and comfortable passage can be achieved even with high doors, from lightweight doors to large commercial facilities and office buildings. ○ Maximum installation height of 4.0m! It features a high-density area function with 60 detection spots. 【Recessed Type HA-520】 ○ With a flat finish that does not compromise the aesthetics of the building, it ensures a wide area for safe and comfortable passage. ○ Easy replacement from older models of our own, with improved sensor performance! 【Lower Surface Mount Type HA-430】 ○ With a design that minimizes protrusion and blends in, it allows for safe and comfortable passage even with high doors. ○ Detailed detection areas can be set while maintaining high density according to the site conditions. 【Ceiling Mount Type HA-260】 ○ An industry-first ceiling-mounted sensor with a flat finish using a pull-down method that does not compromise the aesthetics of the building. ○ The detection area achieves a wide coverage with high density of 72 detection spots! ◎ For more details, please contact us or download the catalog.

Jan 29, 2026

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■■ Air Leak Tester | FLA-0200 / FLA-0201 series ■■ Fukuda's new flagship model. Equipped with mastering correction function, it enables high-precision measurements in a short time.

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Fukuda's new flagship model. - Masterless type (FLA-0200 series) - General type (FLA-0201 series) Two models of air leak testers. With the mastering correction function, high-precision measurements can be achieved in a short time. Please take a look at the catalog.

Jan 29, 2026

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Please take a look at Fukuda's flow meters! (Flow Tester, Flow Unit, Laminar Flow Meter)

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● What is a flow meter? Flow meters measure flow rates using mass flow meters or laminar flow meters and perform pass/fail judgments based on flow rate criteria. They are ideal for measuring airflow and conducting performance tests. "FMZ-1063 series" This is a flow tester equipped with a mass flow meter. It offers high precision of ± 3.5 % of R.D. ± 1 digit (in the normal flow range). It features a time-saving function (scan measurement). The FMZ-1063 is a compact, all-in-one flow tester with various functions. "FU series" This is a flow measurement unit that integrates laminar and differential pressure sensors, making it smaller and lighter. When connected to a display indicator (model: MI-170), it can provide direct flow readings as well as pressure and flow judgments. "FLF-110 series" This is a laminar flow meter capable of measuring a wide range of flow rates from 2 NmL/min to 500 NL/min.

Jan 29, 2026

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Please take a look at Fukuda's air leak tester!

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What is an Air Leak Tester? An "Air Leak Tester" is a device that pressurizes the inside (or outside) of a sealed workpiece with air and determines the presence of leaks based on pressure changes. When a master with no leaks and a workpiece with leaks are pressurized, the pressure on the workpiece side decreases, creating a pressure difference between the two. By measuring this pressure difference, the presence of leaks can be determined. Generally, differential pressure air leak testing is widely used, but Fukuda also offers products that utilize direct pressure leak testing and flow meters according to the leak rate, in addition to differential pressure leak testers. Since the air leak tester uses air as the measurement medium, it incurs no running costs and is environmentally friendly.

Jan 29, 2026

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  • 中小企業の技術課題に対応 幅広い分野での技術開発をサポート 相談無料 依頼試験 共同研究 機器利用
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