Hioki IR5051 High Voltage Insulation Tester

The Hioki IR5051 is engineered to provide reliable insulation resistance measurements for high-voltage electrical systems, including solar PV installations. With its ability to apply test voltages ranging from 250 V to 5 kV, it accommodates a broad spectrum of equipment, from low-voltage circuits to high-voltage systems. The tester’s measurement capabilities extend up to 10 TΩ, ensuring precise diagnostics of insulation integrity.

A standout feature of the IR5051 is its dedicated PV insulation resistance measurement function. This function allows for accurate testing of solar PV systems during power generation, even under sunlight exposure. The tester’s design minimizes the influence of generated currents, ensuring stable and reliable measurements.

Safety is paramount in high-voltage testing, and the IR5051 meets stringent safety standards, including CAT III 2000 V and CAT IV 1000 V ratings. This ensures the tester’s suitability for use in various environments, including industrial and utility-scale applications.

Additionally, the IR5051 offers advanced diagnostic functions, including the calculation and display of Polarization Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), and capacitance values. These features provide comprehensive insights into the condition of insulation materials, aiding in preventive maintenance and system reliability assessments.

Features

• Wide Test Voltage Range: Capable of applying test voltages from 250 V to 5 kV DC, accommodating a variety of high-voltage equipment.
• High Resistance Measurement: Measures insulation resistance up to 10 TΩ, providing accurate diagnostics for critical systems.
• Simultaneous Display: Displays test voltage, insulation resistance, and leakage current values simultaneously on a large, backlit LCD screen.
• Advanced Diagnostics: Automatically calculates and displays Polarization Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), and capacitance values for comprehensive analysis.
• Dedicated PV Measurement Function: Features a specialized mode for measuring PV insulation resistance, supporting test voltages up to 2000 V and resistance measurements up to 100 GΩ.
• Noise Reduction Technology: Utilizes shielded wires and proprietary filters to minimize noise interference, ensuring stable high-resistance measurements.
• Safety Features: Automatically halts testing if insulation failure is detected, enhancing user safety.
• Connectivity Options: Supports wireless communication via the Z3210 adapter and USB connectivity through the DT4900-01 interface (sold separately).
• Rugged Design: Housed in an IP65-rated case, protecting against dust and water ingress, making it suitable for harsh field conditions.
• Data Logging Capabilities: Equipped with memory functions to store measurement data, facilitating efficient reporting and analysis.

Includes

• Test lead L9850-01 ×1
• Test lead L9850-02 ×1
• Test lead L9850-03 ×1
• Alligator clip L9851-01 ×1
• Alligator clip L9851-02 ×1
• Alligator clip L9851-03 ×1
• Test pin set L9852 ×1
• Carrying Case C0212 ×1
• LR6 Alkaline battery ×8
• Instruction manual ×1
• Operating precautions ×1
• Wireless adapter Z3210（IR5051-90 only）