Field Instruments

Product Overview

The Fluke 1535 Insulation Resistance Tester is a powerful, portable, and highly accurate high-voltage insulation tester designed for demanding industrial and commercial electrical applications. With selectable test voltages up to 2500 V and a wide insulation resistance measurement range, the Fluke 1535 delivers reliable, stable, and repeatable results for insulation testing of motors, cables, transformers, switchgear, and electrical installations.

Engineered with Fluke’s trusted durability and user-friendly interface, the 1535 helps electricians, maintenance technicians, and field engineers complete insulation testing efficiently while maintaining the highest safety standards. Its ergonomic handheld design and automated diagnostic functions make it an ideal tool for preventive maintenance, commissioning, and troubleshooting.

Key Features

• High-voltage insulation testing up to 2500 V
• User-selectable test voltages: 250 V, 500 V, 1000 V, 2500 V
• Wide insulation resistance measurement up to 500 GΩ
• High test current for fast and stable readings
• PI (Polarization Index) and DAR (Dielectric Absorption Ratio) measurements
• Automatic discharge of capacitive circuits for enhanced safety
• Large, clear LCD display for easy field viewing
• Rugged, industrial-grade construction
• Long battery life for extended testing sessions
• Suitable for industrial, commercial, and utility environments

Technical Specifications

Brand: Fluke
Model: 1535
Type: Insulation Resistance Tester

Insulation Test Voltages

• 250 V
• 500 V
• 1000 V
• 2500 V

Insulation Resistance Range

• Up to 500 GΩ depending on test voltage

Functions

• Insulation resistance measurement
• PI / DAR diagnostic testing
• Automatic discharge after test completion
• Data hold function
• Battery status indication

Display

• Large digital LCD display with clear readability

Safety Ratings

• CAT IV 600 V
• Designed for high-energy industrial environments

Construction

• Rugged, ergonomic handheld design
• Built for harsh field and industrial conditions

Power Supply

• Battery operated

Applications

• Motor and transformer insulation testing
• Cable and wiring insulation checks
• Switchgear and panel testing
• Electrical maintenance and commissioning
• Industrial and commercial electrical inspections
• Preventive and predictive maintenance
• Troubleshooting insulation degradation

Why Buy from FieldInstruments.lk?

• 100% genuine Fluke instruments
• Fast delivery across Sri Lanka
• Competitive pricing
• Trusted supplier for professional test and measurement equipment
• Local technical support and reliable after-sales service

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk