Megger DLRO2X 2 A Low Resistance Ohmmeter

The DLRO2X offers professionals a robust tool for measuring very low resistance values across applications such as railways, wind turbines, aerospace, switchgear and bonding systems. With a full 2 A DC test current capacity and a dedicated “long lead” mode (delivering up to 1 A into ~4 Ω), it accommodates challenging scenarios with extended test leads or bulky inductive loads. Its built-in noise-rejection mode and “Confidence Meter™” function provide stability of readings in electrically noisy environments, while the “Difference Meter” mode allows comparison of current measurements against a stored reference to track changes over time. For data management, the unit offers on-board memory, USB export (and in many cases Bluetooth connectivity) for automatic storage and transfer of results. In terms of safety and durability, it is rated CAT III 600 V / CAT IV 300 V, offers active protection against inadvertent live connections up to ~600 V (without blowing a fuse), and features an IP54-rated enclosure to withstand dust and moisture in the field. The DLRO2X thereby combines measurement precision, rugged design and data functionality for professionals who must certify low-resistance elements under real-world conditions.

Features

• 2 A DC test current capacity for precise low-resistance measurements.

• Long-lead mode: up to 1 A into ~4 Ω resistance, supporting extended-lead or field setups.

• Noise-rejection mode with Confidence Meter™ to ensure stable readings in noisy environments.

• Difference Meter mode: allows comparison of new measurement against a reference and displays percentage change.

• On-board memory with result storage, USB export (and optional Bluetooth) for ease of data transfer.

• Safety rated CAT III 600 V / CAT IV 300 V, with active protection up to ~600 V to avoid fuse damage if live connection occurs.

• IP54 class field-rugged housing, suitable for outdoor or industrial environments.

• Four-terminal (Kelvin) measurement technique and automatic current reversal (bidirectional test) to cancel thermoelectric EMFs and improve accuracy.

• Multiple test modes (Auto, Manual, Bidirectional/Unidirectional, Inductive) to adapt to different test conditions and loads.

• Fast measurement cycle and intuitive interface for efficient testing in the field.

Includes

• Megger DLRO2 Handheld Low Resistance Ohmmeter
• 2m Kelvin Clip Test Lead Set (CAT IV 300 10A)
• 2m Kelvin Probe Test Lead Set (CAT IV 300 10A)
• 240V Charger Power Supply
• 6x 1.2V NiMH AA 2000mAHR Batteries
• USB Memory Stick (with User Guide)
• Hanging Hook and Strap
• Soft Pouch