Custom Megger DLRO2 2 A Low resistance ohmmeter Manufacturers, Product

The DLRO2 2 A Low Resistance Ohmmeter is a handheld instrument that provides fast, accurate, and repeatable measurements, even in electrically noisy environments. The DLRO2 is the latest addition to the Ducterâ„¢ brand, whose testers share the same renowned and trusted reputation as Megger insulation resistance testers.

  • New Difference Meter for quick data comparisons 
  • Use long leads at 1 A without compromising test speed 
  • Safely test the resistance of inductive loads at 1 A 
  • < 600 V active protection against inadvertent live connections without blowing a fuse 
  • Ideal for outdoor use with protection against dust and moisture to IP54 
  • Industry standard safety rated at CAT III 600 V/CAT IV 300 V 

Product Description

Product Overview

The Megger DLRO2 2A Low resistance ohmmeter is a handheld instrument designed for precision low-resistance testing. It delivers high-accuracy measurements in challenging industrial and outdoor environments.

Basic Information

  • Brand and Series: Part of the renowned Megger Ducter™ series.
  • Compact Build: Measures 228 x 105 x 75 mm (8.98 x 4.1 x 2.95 in).
  • Lightweight: Weighs only 905 grams with batteries.

Safety Features

  • Safety Rating: CAT III 600 V / CAT IV 300 V rated (compliant with EN 61010, IEC 61010-031:2015, and IEC 61010-030).
  • Live Voltage Protection: Active protection up to 600 V between any test terminals without blowing a fuse.
  • Alert System: Visual warning and audible alarm when voltage > 5 V is detected.

Measurement Capabilities

  • Test Current Range: Includes 2 A, 1 A, 100 mA, 10 mA, and 1 mA.
  • Resistance Range: Total capability of 0.001 - 2000 Ω, resolution down to 0.1 µΩ.
  • Testing Modes: Normal mode, fast mΩ/long-test-lead mode, and inductive-resistance mode.
  • Difference Meter: Easy comparison of repetitive measurements against an initial reference with visual needle tracking.

Environmental & Power

  • Robust Protection: IP54 rating makes it dust and splash-proof for outdoor operations.
  • EMC & Noise Immunity: Compliant with IEC61326-1 and IEC61326-2-2 (immunity ≤80 mV differential peak).
  • Battery Performance: Powered by 6 x HR6 NiMH rechargeable batteries (supports fast charge) with up to 500+ tests per charge.

Technical Specifications

Parameter Specification Value
Max Output Current (DC) 2 A
Measurement Range 0.001 - 2000 Ω
Power Source Rechargeable HR6 NiMH (or standard AA Alkaline batteries)
Safety Category Rating CAT III 600 V / CAT IV 300 V
Data Storage & Connectivity USB export & Bluetooth connectivity
Environmental Protection IP54 Dust & Moisture ingress rating
Dimensions 228 x 105 x 75 mm (8.98 x 4.1 x 2.95 in)
Weight 905 grams (including batteries)

Models & Delivery Info

Available Model

Model Name: Megger DLRO2 2 A Low resistance ohmmeter

Packaging & Logistics Details

  • Equipped with 6 LR6 type 1.5V alkaline AA batteries for immediate use.
  • Compact and secure packaging ensures protection during transit.
  • Delivery schedule and methods vary based on purchase location and region.

Manuals & Resources

Megger DLRO2 2 A Low resistance ohmmeter datasheet.pdf

Technical specification sheet, application info, and feature details.

Download Datasheet

Frequently Asked Questions

1. What is the main application of the Megger DLRO2?
The Megger DLRO2 is a handheld 2 A low resistance ohmmeter designed for fast, accurate, and repeatable low-resistance measurements in industrial setups, power installations, and field maintenance.
2. Does the DLRO2 have protection against accidental live voltage connections?
Yes. It features active live-voltage protection up to 600 V between any test terminals without blowing a fuse. It also triggers visual and audible alerts if voltages above 5 V are detected.
3. What current levels can the DLRO2 output during testing?
The instrument outputs test currents of 2 A, 1 A, 100 mA, 10 mA, and 1 mA, depending on the test requirements and settings.
4. Can I use standard non-rechargeable batteries in this device?
Yes. While it is designed to work with 6 x HR6 NiMH rechargeable batteries, standard non-rechargeable alkaline AA batteries can also be used as a convenient power alternative.
5. How does the Difference Meter feature work?
The Difference Meter allows you to set an initial baseline measurement. Subsequent repetitive measurements are compared against this reference, with the percentage difference visually displayed through needle/pointer movements.
6. Is this ohmmeter suitable for wet or dusty environments?
Yes. The device is rated IP54, which provides reliable protection against dust and moisture ingress, making it highly suitable for outdoor use.

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