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Megger DLRO2X Ducter
  • Megger DLRO2X Ducter
  • Megger DLRO2X Ducter
  • Megger DLRO2X Ducter

Megger DLRO2X Ducter Low Resistance Ohmmeter

Megger approved distributor and service centre.

Includes: Kelvin clip lead set 2m, Kelvin probe lead set 2m, 240 V charger power supply, Six Batteries: 1.2 V NiMH AA 2000mAHR, USB memory stick (with user guide), Hanging hook and strap, Soft pouch.


The DLRO2X is an enhanced version of the Megger DLRO2 and features data storage, test limits and noise rejection test mode. The DLRO2 range are tough and truly hand held 2 A low resistance ohmmeters, designed to provide fast, accurate and repeatable measurements even in electrically noisy environments.

The DLRO2 range have been designed for ease of use, they can be operated by non-technical users with minimal training.

The DLRO2X has four main test modes:

Noise Rejection mode.
Normal resistance mode (μΩ).
Fast / long test lead mode (mΩ).
Inductive resistance mode (μΩ).

Noise Rejection mode (DLRO2X)

If the high noise indicator appears on the display while using either the normal mode, long test lead mode, or the inductive mode, then the measurement is being affected by noise and the results may not be reliable.

To assist with this situation, the DLRO2X is equipped with a noise rejection test mode. In this test mode, the current is passed continuously and in one direction only. The instrument then feeds a stream of measurements into the patented Confidence MeterTM. The measurement is then refined until a stable, accurate measurement is obtained.

The Megger DLRO2X can also save results to the internal memory. Folders can be created to store results for each asset ID. When the test is complete, the results can be manually saved to a chosen asset ID.

The Auto Save function can be set up so that all results will automatically be saved to a specified folder once the test has completed. These results can then be copied to a USB data stick to transfer to your PC.


Noise rejection mode.
Data and results storage option.
‘Difference Meter’ for quick comparison of results.
Rotary dial test function selection.
Unidirectional or bidirectional test options on normal resistance test mode.
Secondary display field showing either forward and reverse measurement results or previous two test results,
allowing three test results to be on display at any time for easy comparison.
Current reversal capability to cancel standing EMF.
Noisy connection warning, showing when electrical noise or noise from poor clip / probe connections is present.
Test currents selectable from 1 mA to 2 A.
Capable of 500 measurements from a single charge.
Supplied with compact CAT III 600 V / CAT IV 300 V rated kelvin clip test leads.

Introducing the Megger DLRO2X
Resistance Measurement Ranges
Full Scale Resistance Test Current Resolution Normal Resistance Mode Inductive Mode Long Test Lead Mode (1 A only)
15000 µΩ 2.00 A 1 μΩ
120.00 mΩ 2.00 A 0.01 mΩ
1000.0 mΩ 2.00 A 0.1 mΩ
30.000 mΩ 1.00 A 0.001 mΩ
240.00 mΩ 1.00 A 0.01 mΩ
2200.0 mΩ 1.00 A 0.1 mΩ
300.00 mΩ 100 mA 0.01 mΩ
2500.0 mΩ 100 mA 0.1 mΩ
20.000 Ω 100 mA 0.001 Ω
3000.0 mΩ 10.0 mA 0.1 mΩ
24.000 Ω 10.0 mA 0.001 Ω
200.00 Ω 10.0 mA 0.01 Ω
30.000 Ω 1.00 mA 0.001 Ω
240.00 Ω 1.00 mA 0.01 Ω
2000.0 Ω 1.00 mA 0.1 Ω
Megger DLRO2X Specifications
Low Resistance Measurement
Resistance measurement test modes Normal test mode, Noise rejection mode, Fast mΩ/long test lead mode and Inductive test mode (Resistance of inductive loads).
Noise rejection range 60 mV peak random noise.
Overall resistance range 1μΩ – 2000Ω.
Max resistance across C terminals 2A with up to 1.1Ω total resistance and 1A with up to 3.2Ω total resistance.
Basic accuracy Bi-directional test current mode: + /- 1% +/- 2 digits
Uni-directional test current mode: + /- 1% +/- 10 digits
Inductive mode or unidirectional mode will introduce an undefined error if an external EMF is present.
Normal Resistance Test Mode
Current ranges 2A, 1A, 100mA, 10mA and 1mA.
Maximum compliance output voltage 3.24V (1A mode), 2.2V (2A mode).
Current output accuracy Normal and Inductive mode: ±10 %
Long test lead mode: +10 % -0%
At all battery conditions except with low battery indication.
Thermal EMF / Seebeck effect compensation Yes, average of forward and reverse test current measurements.
Data Storage
Max. test records 8 million.
Maximum asset ID references 256.
Safety and Electrical Protection
Safety rating CATIII 600V / CATIV 300V to EN 61010, IEC 61010-031 : 2015, IEC 61010-030
Safety category rating valid to altitude of 3000m.
Live voltage Active live voltage protection to 600V between any test terminals without blowing a fuse.
Live voltage warning on display and audible when >5V is applied between any test terminals.
Fuse protected to 1000V, fuses are not user changeable.
Noise immunity Less than 1% ±20 digits additional error with 80mV peak 50/60Hz with on screen noise indicator.
Less than 1% ±20 digits additional error with 80mV peak 400Hz with on screen noise indicator.
EMC IEC61326-1, industrial specification IEC61326-2-2.
Dust and moisture ingress IP54 to IEC60529 in use.
Altitude Operational to 3000m.
Temperature Operational range 0 ºC to 50 ºC
Storage range -20 ºC to 50 ºC.
Humidity Operational to 95%, Storage to 90%.
Power Supply
Rechargeable 6 x HR6 Ni MH batteries with in unit fast charge (also ability to use non-rechargeable Alkaline AA batteries (LR6)).
Battery charge time Less than 4 hours.
Battery life More than 1000 bi-directional tests at 2A into a 1Ω load.
Battery Charger / Adaptor
Mains / line input voltage 100 - 240V
Mains / line input frequency 47 - 63Hz.
Output 12V DC 1.2A 14.4W max.
Type Travel adaptor / interchangeable plug adaptor.
Test terminals 4 x 4mm shrouded sockets.
Data USB (For firmware updates only)
User may update instrument firmware to latest version themselves.
User interface English, French, German and Spanish.
User guide English, French, German and Spanish.
Display Full LCD colour screen with user configurable backlight.
Dimensions 228 x 105 x 75mm (8.98 x 4.1 x 2.95 in).
Weight 905 grams (with batteries).


Megger DLRO2X Datasheet

PDF Specifications of the Megger DLRO2X 2A Low resistance ohmmeter.

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Megger DLRO2X Ducter Low Resistance Ohmmeter
Probe & Clip Set 10 A Fused test probe and clip lead set. 1013-224
Lead Set DLRO2 current and potential leadset 2m. 2 x red lead, 2 x blk lead, 2 x grabber clip, 2 x probe. 1011-673
Right-angled Adaptors 4 right angled adaptors to allow hook terminated (E.g. KC100) leads to fit DLRO2. 1012-511
Probe Pins/Tips Set of 4 Kelvin probe pins. Replacement probe tips. 1012-064
50m Cable Reel KC50C-KIT Kelvin clamp/probe reel (50 m). 1013-211
100m Cable Reel KC100C-KIT Kelvin clamp/probe reel (100 m). 1013-212
50m Ext. Reel KC50E Extension reel (50 m). 1013-213

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