Fluke FLUKE-1535 Insulation Resistance Tester

Overview

The Fluke 1535 is a portable 2500V insulation resistance tester engineered for frontline troubleshooting on factory floors and field installations, including solar applications. With selectable test voltages from 250V to 2500V and resistance measurements up to 500 Gigohm, it covers a wide range of industrial testing requirements.

Key Features

• User-selectable test voltages: 250V, 500V, 1000V, 2500V with 100V fine-tuning increments
• Extended insulation resistance measurement: up to 500 Gigohm
• Automatic polarization index (PI) and dielectric absorption ratio (DAR) calculations
• High measurement capacity: up to 1,300 measurements at 2500V or 6,500 at 250V
• Short circuit current up to 5 mA for faster, stable measurements
• CAT IV 600V safety rating
• Built-in voltage alarm function
• Visual and audio continuity indicator
• Customizable testing parameters and user-defined labels

Applications

• Cable and winding insulation testing
• Motor and transformer insulation assessment
• Solar installation testing and maintenance
• Industrial commissioning and troubleshooting
• Preventive maintenance programs

Included Accessories

• Test leads with alligator clips (red, black, green)
• Test probes (red, black)
• Soft carrying case
• User documentation