Megger DLRO10X Review: 10A Low Resistance Tester for Industrial Testing
Table of Contents10 A DC | Color display | RS232
Megger DLRO10X Review: A Fully Automatic 10A Low Resistance Tester for Professional DC Resistance Measurement
The Megger DLRO10X is a professional micro-ohmmeter designed for accurate low-resistance measurement in industrial, maintenance, and quality-control environments. According to the datasheet, it measures resistance from 0.1 μΩ to 2000 Ω on seven ranges, uses test current up to 10 A DC, and includes onboard storage, RS232 downloading, and a large color display.
Quick Verdict
The DLRO10X is a strong choice for teams that need reliable low-resistance testing with workflow features such as result storage, notes, and PC download. It is especially well suited for repetitive testing in production, maintenance, and inspection work where traceability matters.
Product at a Glance
What Is the Megger DLRO10X?
The DLRO10X is a fully automatic low-resistance ohmmeter designed to measure very small resistances accurately and repeatably. The datasheet describes it as a tool for fast DC resistance testing with automatic current selection, current reversal, noise checking, continuity detection in the P and C circuits, and user-defined high/low limits for go/no-go testing.
In practical terms, this makes it suitable for tasks where low-resistance values need to be measured and documented reliably, such as joints, bonds, windings, and other conductive paths.
Key Features
Measurement Engine
The instrument selects the most suitable test current automatically, up to 10 A DC. It also uses forward and reverse current measurement and auto current reversal to cancel standing EMFs.
Data Handling
The DLRO10X stores up to 700 sets of results with notes up to 200 characters, and supports real-time or later download to a PC.
Technical Specifications
| Parameter | DLRO10X Specification |
|---|---|
| Resistance measurement range | 0.1 μΩ to 2000 Ω, on seven ranges |
| Basic accuracy | 0.2% |
| Maximum test current | Up to 10 A DC |
| Display | Large color display |
| Data storage | 700 tests |
| Memo field | Up to 200 characters |
| Communications | RS232 |
| Safety protection | Protected to 600 V |
Resistance Range and Test Current Table
| Range | Accuracy | Test current |
|---|---|---|
| 1.9999 mΩ | ±0.2% | 10 A resistive |
| 19.999 mΩ | ±0.2% | 1 A resistive / 1 A inductive |
| 199.99 mΩ | ±0.2% | 100 mA resistive / 1 A inductive |
| 1.9999 Ω | ±0.2% | 10 mA resistive / 100 mA inductive |
| 19.999 Ω | ±0.2% | 1 mA resistive / 10 mA inductive |
| 199.99 Ω | ±0.2% | 100 μA resistive / 1 mA inductive |
| 1999.9 Ω | ±0.2% | 100 μA resistive / inductive |
Applications
Benefits of Using the DLRO10X
- Accurate low-resistance measurement with 0.2% basic accuracy.
- Fast workflow for repetitive testing thanks to automatic operation and limit testing.
- Better documentation through result storage, notes, and PC download.
- Useful in environments where automatic current reversal helps reduce EMF errors.
- Clear viewing and easier data handling with a large color display.
Pros
- Fully automatic testing
- Up to 10 A DC test current
- 0.2% basic accuracy
- 700 stored tests with notes
- RS232 communications
- Large color display
Cons
- Not intended for general multimeter functions
- Uses RS232 rather than newer interfaces
- Focuses on low-resistance work only
What’s Included in the Box
According to the datasheet, the DLRO10X is available in two supply options:
- Supplied with a pair of duplex handspikes with 1.2 m (4 ft) leads
- Supplied without test leads, allowing the user to order the required lead set separately
- External charger and lithium-ion battery pack are supplied as standard
Buying Guidance
Choose the Megger DLRO10X if your work involves low-resistance measurement with repeatable test procedures, data logging, and traceable results.
It is a particularly good fit for maintenance teams, test engineers, quality-control departments, and industrial buyers who need a dedicated micro-ohmmeter rather than a general-purpose meter.
