The images provided are of the actual item you will receive. Please review them carefully for cosmetic condition.

This Megger DLRO200 Digital Low Resistance Ohmmeter is in used condition and is cosmetically in very good condition. The unit powers on and the display is functional. Please note that full functional testing has not been carried out as the required test lead set (Megger 1008-029) is not available with this unit. The item is therefore sold as untested and buyers should factor this into their purchase decision.

The unit's on-board memory shows 0 tests stored and the display is operational, confirming the unit powers up correctly.

This unit includes:
• Megger DLRO200 instrument unit
• Hardwired mains power lead
• Megger branded soft carry bag

<p style="font-family: Verdana, sans-serif; font-size: 13px; color: #cc0000; font-weight: bold; margin: 8px 0;">&#9888; FAO TT Instruments: Please confirm whether any additional accessories are included (e.g. RS232 cable, download software) before going live.</p>

The Megger DLRO200 is an AC-powered, high-current digital low resistance ohmmeter (microhmmeter) designed to measure DC resistances from 0.1 µΩ to 1 Ω at test currents up to 200 A DC. It is the instrument of choice for testing circuit breaker contacts, switch contacts, busbar joints, and other applications requiring high current for accurate low-resistance measurement.

The DLRO200 uses a four-terminal (Kelvin) measurement technique to cancel test lead resistance from the result. Three test modes — Normal, Auto, and Continuous — provide flexibility for a wide range of applications. In Auto mode, the instrument detects lead connection automatically and initiates the test without pressing the TEST button, making it highly efficient for testing multiple joints in sequence.

A large backlit alphanumeric LCD displays all test parameters and results simultaneously. The full alphanumeric keypad enables direct entry of the required test current, upper and lower pass/fail limits, and annotation of stored results. Up to 300 sets of results can be stored in on-board memory and downloaded to a PC or printed via the RS232 port.

The compact, portable design weighs less than 15 kg, making it equally suitable for workshop, production floor, and field use. The unit carries an IP54 ingress protection rating.

Measurement Range: 0.1 µΩ to 999.9 mΩ
Test Current: 10 A to 200 A DC (user-selectable)
Best Resolution: 0.1 µΩ
Accuracy (Resistance): Better than 1% from 300 µΩ to 100 mΩ
Test Time: 10 seconds (Normal/Auto); 2-second refresh (Continuous)
On-Board Memory: 300 test results with notes
Data Interface: RS232
Power Supply: 100–265 V AC, 50/60 Hz
Dimensions: 450 × 250 × 270 mm
Weight: 14.5 kg (excluding test leads)
IP Rating: IP54
Manufacturer: Megger Limited, Made in England

Megger DLRO200 datasheet: Download PDF