Megger DLRO10X Digital Low Resistance Micro-Ohmmeters

The DLRO10X is designed for professionals who must reliably measure very low resistances in critical electrical systems, where accurate readings can be the difference between a safe connection and a potentially failing joint. The unit automatically selects the optimal test current (up to 10 A) depending on the resistance under test, yet also allows manual override for specialist use. It performs four-terminal (Kelvin) measurements to eliminate lead resistance error, and uses automatic current reversal to cancel thermoelectric EMFs—ensuring high accuracy (≈0.2%). The measurement range spans from 0.1 µΩ to 2 kΩ across seven ranges, allowing everything from micro-ohm checks through to kilo-ohm regime testing. Results are produced typically in under 3 seconds and include both forward and reverse current readings plus their average. The DLRO10X adds on-board memory (up to ~700 results) and a full alphanumeric keypad to input test notes, making it easy to label and store tests on the go. It also features a back-lit LCD for readability in difficult lighting, a rugged case for field use, battery or mains operation, and output ports for data download. Safety features include input protection up to ~600 V, warnings for live voltage and current flow, and detection of continuity in connection paths. Suitable for demanding industrial and utility applications, the DLRO10X delivers advanced micro-ohm measurements in a portable, field-ready instrument.

Features

• Up to 10 A DC test current for precise low-resistance measurement.

• Wide measurement range from approximately 0.1 µΩ to 2 kΩ with selectable ranges.

• Automatic current reversal eliminates thermoelectric EMF errors and averages forward/reverse readings.

• Four-terminal Kelvin measurement design minimizes lead resistance for higher accuracy.

• On-board memory for up to 700 results, alphanumeric keypad for labeling, and PC connectivity for data transfer.

• Rugged, portable construction with back-lit LCD display and input protection up to 600 V for reliable field use.

• Multiple test modes available, including Auto, Manual, Continuous, and Inductive modes.

• Configurable Go/No-Go thresholds for quick pass/fail testing.

• Interchangeable test lead terminations to suit different applications.

• Fast measurement cycle — results typically delivered within about 3 seconds.

Includes

• 5.2 lithium ion battery module
• DH4-C Duplex handspikes (2), one with indicator lights
• 1.5 m (Not NLS models)
• Battery charger for operation from 115/230 V
• 50/60 Hz supply
• Battery Charging lead 12V
• User guide
• Warranty card