Megger DLRO10HD Heavy Duty Ducter / Low Resistance Ohmmeter
The Megger DLRO10HD Low Resistance Ohmmeter is a strong, high-quality tool. It is made for professionals who need accuracy, reliability, and speed in low resistance measurement. Megger combines its long experience in Ducter testing with modern technology. This Megger Low Resistance Ohmmeter gives accurate results in tough industrial and field conditions and is part of Megger’s trusted range of micro ohmmeters.
Engineered for Performance and Durability
The Megger DLRO10HD is made for both bench and field use. It has a robust IP65-rated case when the lid is closed, and IP54 protection while in use.
Its large, clear backlit LCD display is easy to see in any light. The simple rotary switch controls make it quick to set up and mode the test, even when wearing gloves.
Designed for continuous testing in high-volume environments, the DLRO10HD runs on an internal rechargeable battery or AC mains. With dual power capability, users can test continuously while recharging, reducing downtime during production or maintenance work.
Exceptional Measurement Capability
The Megger DLRO10HD measures resistance from 0.1 micro-ohms up to 2.5 ohms. It is capable of delivering a test current up to 10 A for 60 seconds, with the full 10 A available for the lower resistance ranges (up to 250 mΩ). This makes it ideal for contact resistance testing, cable joints, switchgear, and busbar integrity. The instrument offers high or low output power selection to ensure accurate resistive measurements without overheating sensitive conductors, maintaining precise and repeatable results.
- Measures resistance from 0.1 micro-ohms to 2.5 ohms
- Delivers up to 10 A test current for 60 seconds
- Full 10 A available for lower resistance ranges (up to 250 mΩ)
- High or low output power selection for accuracy and protection
- Ensures precise, repeatable results in demanding applications
- Ideal for contact resistance, cable joints, switchgear, and busbar integrity testing
Five selectable test modes, including automatic unidirectional mode, continuous mode, and inductive mode, provide complete flexibility across applications.
- Continuous mode: Allows repeat measurements on the same sample, updating every few seconds.
- Inductive mode: Enables accurate testing of inductive loads such as motors and generators.
- Automatic unidirectional mode: Speeds up the measurement process when time is critical.
- Bidirectional measurement: Compensates for thermal EMF effects when testing dissimilar metals to ensure accurate results in every test.
▶ See how this DLRO fits in to the Megger low-resistance lineup:
Watch how the Megger DLRO10HD fits into the DLRO series, delivering rugged portability and reliable low-resistance measurement performance for demanding electrical and industrial environments.
Safety and Efficiency You Can Trust
The DLRO10HD is rated CAT III 300 V, provided the optional terminal cover is fitted. It is inherently protected against accidental voltage connections up to 600 V without damage. Its advanced circuitry checks all four connections before applying current, ensuring reliable measurements every time.
An auto-start function begins testing as soon as the probes make contact, saving time in repetitive applications. The large backlit display and clear interface make it ideal for laboratory, manufacturing, and field environments.
Typical Applications
The Megger DLRO10HD is designed to measure low resistance in a wide range of industries, including:
- Electrical manufacturing and assembly
- Quality testing of switches, connectors, relays, and fuses
- Motor and generator winding testing (inductive loads)
- Contact resistance and earth bond verification
- Busbars, cables, and welded joints
- UPS systems and batteries
- Wind turbines and lightning protection systems
- Wherever accurate low resistance measurements are essential, the Megger DLRO10HD Low Resistance Ohmmeter delivers consistent, dependable results.
Why Choose the Megger DLRO10HD
- Accurate, repeatable resistive measurements up to 2.5 ohms
- High-current 10 A testing for demanding low-resistance applications
- Operates on battery power or AC mains simultaneously
- Interchangeable test lead terminations for versatility
- Protected against accidental live voltage connections
- Compact, portable, and built for industrial conditions
- Backed by Megger’s heritage in Ducter and micro ohmmeter technology since 1908
What comes with the Megger DLRO10HD?
- Megger DLRO10HD Digital Low Resistance Ohmmeter
- DH4-C test lead set (1.5 m duplex connect handspikes)
- User guide and warranty documentation
❓ Frequently Asked Questions (FAQ)
Q1: What does the Megger DLRO10HD measure?
A. It measures low resistance in conductive materials. This helps find poor connections, weld faults, or component wear in electrical systems.
Q2: Can the Megger DLRO10HD test inductive loads?
A. Yes. Using the inductive mode, it can safely and accurately test motors, generators, and other inductive components.
Q3: How does continuous mode work?
A. Continuous mode allows repeat measurements every few seconds on the same sample, making it ideal for monitoring stabilization or conducting multiple tests quickly.
Q4: Does the DLRO10HD compensate for thermal EMF?
A. Yes. In bidirectional testing, the instrument averages forward and reverse currents to cancel any thermal EMF effects from dissimilar metals.
Q5: Is the DLRO10HD battery-powered?
A. It can operate from its rechargeable battery or from a mains supply, and it can charge while testing for true continuous operation.
Experience accuracy, trust, and high performance with the Megger DLRO10HD Low Resistance Ohmmeter. It is the top choice for reliable low resistance testing in any environment.