Megger
DLRO10X Low Resistance Ohmmeter with DH4-C

Megger DLRO10X 10 A Micro-ohmmeter with Test Results Storage and Downloading

The Megger DLRO10X DUCTER brings new standards to precision low-resistance measurement. This fully automatic instrument automatically selects the most suitable test current - up to 10 A dc - to measure resistance from 0.1 µΩ to 2000 Ω across a wide range of applications. For users who require more control, the DLRO10X provides a simple two-axis paddle and intuitive menu system for manual test-current selection, ensuring consistent, repeatable results in every environment.

The Megger DLRO10X also introduces onboard memory, an alphanumeric keypad and real-time data download capability. Engineers can store, tag and review test data in the field or later transfer up to 700 results to a PC for analysis and reporting, improving traceability and compliance with maintenance documentation.

▶ See how this DLRO fits in to the Megger low-resistance lineup:

Watch how the Megger DLRO10X fits into the DLRO series, combining portability and advanced data features for dependable low-ohm testing across a wide range of electrical and industrial systems.

Megger DLRO10X Key Features:

• NEW interchangeable test lead terminations for maximum flexibility in the field
• Auto current reversal cancels standing EMFs to ensure true readings
• Protected to 600 V for operator safety in complex installations
• Automatically detects continuity in potential and current connections
• Multiple operating modes including fully automatic and continuous options
• Can be used in tight spaces and reduces the need for extra-long leads or two-person operation
• Four-terminal resistance method shows the true resistance of the item under test
• Bright LCD display is easily readable in all lighting conditions and reduces human error
• Noise-check function reduces the risk of incorrect results caused by instability
• Auto detection in P and C circuits prevents high readings due to poor contact resistance
• Battery module includes condition indicator to check spare battery status without connection to the instrument

New Duplex Connect test leads are supplied as standard (see data sheet), providing reliable Kelvin connections and improved operator efficiency.

How is the DLRO10X Different from the DLRO10?

The Megger DLRO10X builds upon the trusted DLRO10 design with enhanced data and control functionality for technicians who need comprehensive measurement management and traceability.

• Alpha-numeric keypad for entering test notes and identifiers
• User-selectable high and low limits for quick pass/fail decisions
• Printer output and internal memory for detailed record-keeping
• RS232 connector enables real-time data transfer or later download to PC
• Up to 700 sets of results can be stored with up to 200 characters of notes each, ensuring thorough traceability for every test

Both instruments are built into strong, lightweight cases that are equally at home in the laboratory or out in the field. Light enough to be worn around the neck, they fit comfortably into tight spaces for efficient testing on site. While the DLRO10 uses a large LED display, the DLRO10X features a large, backlit LCD display with clear digital readout and intuitive menu navigation for faster operation across a wide range of tasks.

Megger DLRO10 vs DLRO10X – Key Differences

What Comes with the Megger DLRO10X?

• (1006-600) Megger DLRO10X Ductor Ohmmeter
• (6121-492) 7 Ah NiMH Battery Module
• (1006-444) DH4 Duplex Handspikes (2×) – one with indicator lights (1.2 m)
• (6280-333) Battery Charger (115/230 V 50/60 Hz Supply)
• (6280-332) Cigar-lighter adapter for battery charging
• User Guide
• Warranty Book

This comprehensive kit ensures the Megger DLRO10X is ready for immediate commissioning and data-logging use across a wide range of industrial applications.

Applications and Performance

The Megger DLRO10X is engineered for high-accuracy measurement of very low resistance values on switches, contacts, busbars, battery inter-cell links, and welded joints. Its four-wire method eliminates lead and contact resistance errors, providing repeatable results within seconds. With test currents up to 10 A dc and accurate averaging of forward and reverse measurements, users obtain dependable data even on energised equipment.

When connected to a PC via RS232 or USB (adaptor), the DLRO10X downloads data in real time, simplifying asset management and record archiving. Its internal memory and alpha-numeric keypad allow on-site note entry, ideal for quality assurance programmes that require full traceability across a wide range of test samples.

The rugged construction withstands demanding environments such as power stations, refineries, and transport networks. Combined with long-life NiMH battery modules and rapid charging, the Megger DLRO10X provides outstanding reliability for daily use in maintenance, production, and inspection roles.

Using the Megger DLRO10X for Best Results

To achieve consistent accuracy with the DLRO10X:

1. Clean test surfaces to ensure solid contact and minimise contact resistance.
2. Select appropriate lead terminations for the geometry and size of the test sample.
3. Use auto or manual modes to control current as needed for each application.
4. Take advantage of the alpha-numeric keypad to record site information and test notes.
5. Download results to a PC for trend analysis and preventive maintenance planning.

The Megger DLRO10X combines speed, portability and data management for professional engineers who need to verify connections and measure low resistance values across a wide range of industrial tasks.

❓ Frequently Asked Questions (FAQ)

How does the DLRO10X store test results?

A. The Megger DLRO10X stores up to 700 sets of results with individual notes of up to 200 characters. Results can be reviewed on screen or downloaded via the RS232 port for analysis and reporting.

Can the DLRO10X be used with a printer or PC?

A. Yes. A dedicated printer output and RS232 interface allow real-time printing or direct PC connection for data logging and remote control.

What is the difference between the DLRO10 and DLRO10X models?

A. Both measure low resistance accurately up to 10 A dc, but the DLRO10X adds result storage, note entry and data download functions, making it ideal for documentation and quality management across a wide range of industrial applications.

Is the DLRO10X suitable for field use?

A. Absolutely. It is rugged, lightweight and can be worn around the neck for hands-free operation in tight spaces, while its NiMH battery module provides extended operation in remote locations.

What kind of measurements does the DLRO10X cover?

A. It can measure contact, joint, weld and bond resistance, motor and transformer winding resistance, and battery link connections, serving a wide range of industrial sectors including utilities, transport and manufacturing.

Why Choose the Megger DLRO10X?

The Megger DLRO10X is the definitive choice for engineers who need precision, data integrity and portability in one instrument. Its combination of automatic operation, manual control, and data logging across a wide range of applications ensures reliable low-resistance testing in every environment. Choose the DLRO10X to streamline testing, simplify reporting and improve the accuracy of your maintenance programmes.