Description
The Hioki FT4310 is a specialized diagnostic instrument engineered for the precision testing of bypass diodes in photovoltaic (PV) systems. Unlike standard multimeters, this unit is designed to detect open-circuit and short-circuit faults even during daylight conditions without requiring the shading of solar panels. It utilizes high-accuracy measurement logic to identify high-resistance failures that compromise string efficiency and system safety.
Technical Specifications:
Measurement Object: Crystalline silicon PV modules (Bypass diodes)
Open-circuit Voltage Measurement: 0 V to 1000 V DC (Resolution: 1 V)
Short-circuit Current Measurement: 0.0 A to 15.0 A DC (Resolution: 0.1 A)
Bypass Route Resistance: 0.0 Ω to 15.0 Ω
Comparator Function: Visual and audible PASS/FAIL alerts
Response Time: Approximately 2 seconds per measurement
Display: TN LCD with backlight
Interface: Bluetooth 4.0 LE (GENNECT Cross compatible)
Protection Rating: IP40 (EN60529)
Safety Standard: EN61010-1, EN61010-2-030, EN61326 (EMC)
Power Supply: LR6 Alkaline battery ×6
Dimensions: 152 mm W × 92 mm H × 42 mm D
Weight: 440 g (including batteries)
Original Engineering and Performance:
The FT4310 integrates proprietary circuit technology that allows for the measurement of bypass diode characteristics while the string is generating power. This eliminates the need for nighttime inspections or manual panel covering, significantly reducing labor costs and operational downtime. The device is essential for identifying high-resistance faults that lead to localized overheating and potential fire hazards in PV arrays.
Industrial Application:
This equipment is critical for O&M (Operations and Maintenance) contractors managing utility-scale solar farms and commercial rooftop installations. It is used during commissioning and periodic inspections to ensure Technical Compatibility with high-voltage string architectures. By detecting degraded diodes early, the FT4310 prevents the formation of hot spots, ensuring long-term lifecycle value and maximizing energy yield.
Logistics and Availability:
Condition: New, Original Engineering
Lead Time: Typically 3-5 business days depending on regional stock
Package Includes: Test Lead L9787, Probes, Carrying Case, Instruction Manual
Key Attributes
Type: Diode Tester
Accuracy: ±0.2%
Place of origin: Japan
Customized support: Software Reengineering
Power: 0 to 1000 V DC
Protection Class: IP40
Voltage: 1000 V
Brand name: Hioki
Application: Diode Tester
Warranty: 2 Years
Measurement Time: 2s or less
Measurement Items: Open-circuit voltage
Response Time: Within 1 sec
Power Supply: LR6 (AA)
Packaging and Delivery
Selling Units: Single item
Single package size: 25X25X18 cm
Single gross weight: 2.000 kg
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