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All-Weather Portable Photovoltaic EL/PL
The professional all-weather portable photovoltaic EL/PL tester featuring Daytime EL, Daytime PL, and Nighttime EL modes. Powered by hyperspectral imaging and AI algorithms, it automatically identifies cracks, microcracks, and short circuits.
  • The FS-EP series is the latest generation of portable testing equipment launched by CHNSpec for EL/PL inspection in the photovoltaic industry, including the FS-EP-270 / 250 / 230 models.
    1. Equipped with three core functions: daytime EL, daytime PL, and nighttime EL
    2. Compatible with both module and string measurements
    3. Can be tested during daytime, nighttime, and rainy or cloudy conditions, truly achieving “all-weather” operation
    4. Adopts an advanced hyperspectral imaging system, providing richer and clearer detection details
    5. Built-in artificial intelligence large-model algorithms for automatic identification of defects such as cracks, microcracks, broken grid lines, fragments, and short circuits
    6. Jointly developed by Zhejiang University and China Jiliang University
    7. Lightweight, compact, and easy to operate; all operations can be completed via a tablet computer


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Application Fields



Technical Parameters

Camera
Model
FS-EP-230
FS-EP-250
FS-EP-270
Lens Type
Near-infrared high-sensitivity lens
Dimensions
157mm×88.3mm×89.3mm
Weight
Less than 1 kg
Pixels
1.3 million pixels
3 million pixels
5 million pixels
Resolution
1296×1032
2080×1544
2560×2048
Detection Modes
Nighttime EL / Daytime EL / Daytime PL
Shutter Time
Nighttime EL: 15–100000us; Daytime EL and Daytime PL: 10–20000us
Operating Environment
Sunlight, moonlight, starlight, and artificial light do not affect testing; all-weather adaptability
Tablet
11.2-inch Android tablet
Software
Functions
Automatic exposure, manual exposure, overexposure warning, histogram function, adjustable main unit parameters; manual annotation and AI-based defect classification; export of original images and annotated images; map display of project address with GPS positioning
Records
Module barcodes can be entered by scanning or manual input
WiFi Module
The lens can connect directly to the camera WiFi, with no need to configure third-party WiFi modules
Optional Accessories
Tripod, gimbal, cables, tablet computer, string controller, module controller, module power supply, string power supply, lenses with multiple fields of view and focal lengths, explosion-proof case

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