Amprobe AMB-50 Insulation Tester, 5kV, 1TΩ, PI/DAR

Amprobe AMB-50 Insulation Tester

The Amprobe AMB-50 is a high-voltage insulation resistance tester designed for industrial electrical systems. It measures insulation resistance up to 1 TΩ and AC/DC voltage up to 600V, helping to reduce shock hazards and downtime. With selectable test voltages of 500V, 1kV, 2.5kV, and 5kV, it is suitable for a wide range of applications, from low-voltage control circuits to high-voltage motors and transformers.

Key Features & Highlights

• Insulation resistance measurement up to 1 TΩ (teraohm)
• Selectable test voltages: 500V, 1,000V, 2,500V, and 5,000V DC
• AC/DC voltage measurement up to 600V
• Low-resistance range (0-4,000 Ω) for motor winding resistance
• Automatic discharge of test object after measurement for safety
• Programmable timer (10s to 30 min) for PI, DAR, and comparison tests
• Polarization Index (PI) and Dielectric Absorption Ratio (DAR) diagnostic functions
• Comparison feature with PASS/FAIL thresholds for quick verification
• Internal memory stores up to 18 test results
• USB interface for data transfer to PC (software and cable included)
• Dual power source: AC adapter or 8 C batteries (included)
• Safety rated to EN 61010-1, CAT III 600V
• Complete kit includes test leads, hard carrying case, and manual

Applications

The Amprobe AMB-50 is ideal for electricians, maintenance technicians, and electrical contractors. It is used to test insulation of wires, cables, transformers, motors, surge arrestors, and generators. Its high test voltages and diagnostic capabilities make it suitable for preventive maintenance programs, commissioning, and troubleshooting in industrial, commercial, and utility settings.