INSULATION TESTER IR4053

Description

The Hioki IR4053-10 is a digital insulation resistance tester specifically designed for photovoltaic (PV) generation systems. It enables safe and accurate insulation resistance measurements even while the system is generating power, eliminating the need to shut down operations. With its dedicated PV function, the IR4053-10 delivers rapid measurements in just 4 seconds, enhancing efficiency in field diagnostics.​

Key Features:

• PV-Specific Measurement Function: Safely assess insulation resistance without being affected by solar power generation, ensuring accurate readings during daytime operations.​ 
• Rapid Measurement Capability: Dedicated PV function provides insulation resistance values in approximately 4 seconds, streamlining the testing process.​ 
• Versatile Voltage Ranges: Offers five insulation resistance test voltages—50 V, 125 V, 250 V, 500 V, and 1000 V—catering to a wide range of applications.​ 
• High-Resistance Measurement: Capable of measuring insulation resistance up to 4000 MΩ, suitable for comprehensive system evaluations.​ 
• Integrated Comparator Function: Facilitates quick pass/fail assessments based on user-defined thresholds, improving decision-making efficiency.​ 
• Robust Design: Engineered to withstand drops from heights up to 1 meter onto concrete surfaces, ensuring durability in demanding environments.​ 
• Enhanced Safety Features: Includes live circuit detection, automatic discharge of residual voltage, and automatic AC/DC voltage detection to protect users during testing.​ 
• User-Friendly Display: Equipped with a semi-transmissive FSTN LCD and backlight for clear visibility in various lighting conditions.​ 
• Efficient Power Usage: Operates on four AA alkaline batteries, providing approximately 20 hours of continuous use.​ 

Technical Specifications:

• Insulation Resistance Measurement: 
  • Test Voltages: 50 V, 125 V, 250 V, 500 V, 1000 V​ 
  • Measurement Range: Up to 4000 MΩ​ 
  • Accuracy: ±4% rdg. for primary ranges​ 
  • Overload Protection: 600 V AC (10 s) for 50–500 V ranges; 1200 V DC (10 s) for 1000 V range​ 
• PVΩ Measurement: 
  • Test Voltages: 500 V, 1000 V​ 
  • Measurement Range: 0.200 to 4000 MΩ​ 
  • Accuracy: ±4% rdg. for 0.200 to 500 MΩ (500 V) and 0.200 to 1000 MΩ (1000 V); ±8% rdg. for higher ranges​ 
• Voltage Measurement: 
  • DC Voltage: 4.2 V to 1000 V (±1.3% rdg. ±4 dgt.)​ 
  • AC Voltage: 420 V / 600 V ranges at 50/60 Hz (±2.3% rdg. ±8 dgt.)​ 
• Display: Semi-transmissive FSTN LCD with backlight​ 
• Response Time: Approximately 1 second for insulation resistance; 4 seconds for PVΩ function​ 
• Power Supply: 4 × AA alkaline batteries​ 
• Dimensions: 159 mm (W) × 177 mm (H) × 53 mm (D)​ Hioki 
• Weight: Approximately 600 g (including batteries, excluding test lead)​ 

Included Accessories:

• L9787 Test Lead​ 
• Neck Strap​ 
• Instruction Manual​ Global Test Suppl 
• 4 × AA Alkaline Batteries​
  

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