English Manual

Key Features:

• Insulation Resistance Testing: Measures resistance from 0.00MΩ~100MΩ (100V/250V/500V/1000V) and 0.00MΩ~99.9MΩ (2500V), ensuring electrical safety for transformers, motors, and cables.
• AC Voltage Measurement: Detects 30V~750V AC voltage with ±(2%+3) accuracy for quick circuit diagnostics.
• Safety & Durability:
  • Auto discharge to safely release stored voltage after testing.
  • LCD backlight for visibility in low-light environments.
  • Overload indication and automatic power-off to prevent damage.
• Compliance & Portability:
  • CAT III 600V safety rating (implied by industrial use).
  • 1.5V LR6×6 batteries powered, lightweight at 500g.

Applications:

• Electrical maintenance: Test insulation resistance of transformers, generators, and cables.
• Industrial safety: Verify compliance with electrical standards in factories.
• Household checks: Ensure wiring safety in residential circuits.

Packaging:

• 1×UT501A tester, 6×1.5V LR6 batteries, test probes, alligator clips, test leads, carrying bag, shoulder strap, user manual, warranty card.

Technical Specifications:

• Insulation Resistance:
  • Output Voltage: 100V/250V/500V/1000V (UT501A), 500V/1000V/2500V (UT502A).
  • Range: 0.00MΩ~100MΩ (100V/250V/500V/1000V), 0.00MΩ~99.9MΩ (2500V).
  • Accuracy: ±(3%+5) for most ranges.
• Low Resistance: 0.01Ω~200Ω (±(2%+3)), test current >200mA.
• AC Voltage: 30V~750V (±(2%+3)).
• Display: 1999-count LCD with backlight.
• Battery: 6×1.5V LR6 (included).
• Auto Power Off: 5 minutes inactive.
• Dimensions: 150mm×100mm×71mm.
• Weight: 500g.

Why Choose UT501A?

• Essential Safety Tool: Detects insulation weaknesses to prevent electric shocks and equipment damage.
• User-Friendly: Auto discharge and backlight simplify field use.
• Reliable Performance: Rugged design for workshop and on-site testing.