Keysight U1461A Insulation Resistance Tester

Overview

The Keysight U1461A is a dual-function insulation resistance tester and digital multimeter designed for comprehensive electrical system diagnostics in industrial and utility maintenance. Its adjustable test voltage from 10V to 1.1kV, measurement range up to 260GΩ, and integrated 4.5-digit OLED display make it essential for predictive maintenance, commissioning, and troubleshooting of power systems, motors, cables, and transformers.

Key Features

• Insulation resistance measurement up to 260GΩ with adjustable test voltage from 10V to 1.1kV
• Integrated 4.5-digit OLED digital multimeter with True RMS AC/DC voltage and current measurement
• Timed, PI (Polarization Index), and DAR (Dielectric Absorption Ratio) test modes for comprehensive cable diagnostics
• IP67 rating and 3-meter (10-foot) drop-proof construction for harsh field environments
• Wireless insulation testing via optional Bluetooth adapter for remote PC or mobile device monitoring
• Automatic test report generation with complimentary reporting software

Applications

• Preventive and predictive maintenance testing of electrical cables and equipment
• Power system commissioning and qualification of motors and transformers
• Utility and industrial electrical infrastructure diagnostics
• Portable testing and remote monitoring with wireless connectivity

Included Accessories

• Test leads with shielded connectors
• Four AA alkaline batteries (or lithium for extended temperature operation)
• Infrared (IR)-to-USB cable for data logging and wireless adapter compatibility
• Quick start guide, safety documentation, and calibration certificate