MEGGER DLRO200 Digital Micro-Ohmmeter

Megger DLRO200-EN-NLS Low Resistance Ohmmeter Details
Megger's DLR200 is designed to make measurement and datalogging of low resistance levels as simple as possible.

Capable of measuring resistance levels between 1μΩ and 1Ω, the DLRO200 uses test current from 10A to 200A to measure the level of resistance generated across a conductor. Measurements are carried out using four terminals, a testing procedure that negates the resistance of test leads and ensures that measurements taken are as accurate as possible.

Three different measurement modes are available on the DLR200: continuous, normal and auto. In continuous mode, resistance levels can be measured over a period of time as the tester constantly generates a current. In normal mode, standard testing is applied, ramping up the desired level over ten second. The third mode, auto, is used for repeated testing and makes it easy to generate the correct current for a test.

Up to 300 records can be stored directly on the DLRO200's built-in memory and can be downloaded easily to PC/printer via an RS232. A alphanumerical keypad can be used to add notes to stores results or easily navigate between stored data.

Megger DLRO200-EN-NLS Low Resistance Ohmmeter Key Features
Small, lightweight design for use out in the field
Test current from 10A to 200A (DC)
0.1μΩ high resolution
Built in memory stores up to 300 records (with notes)
RS232 allows communication with PC and printers
Continuous, normal and auto testing modes
Four terminal testing

Megger DLRO200 Technical Specifications
Measurement Range    0.1 μΩ to 999.9 mΩ
(Subject to supply voltage and leads used)
Accuracy    Voltage ±0.5% ± 0.1 mV
Current ±0.5% ± 0.1 A
Resistance: Better than 1% from 300 μΩ to 100 mΩ
Better than ±2% from
100 μΩ to 300 μΩ
Current Lead Resistance (Megger Leads)    2 x 5 m 25 mm2 current leads 8 m
2 x 5 m 50 mm2 current leads 4 mΩ
2 x 10 m 70 mm2 current leads 5.4 mΩ
2 x 15 m 95 mm2 current leads 6 mΩ
Maximum Continuous Test Time    More than 10 minutes at 200 A @ 20 ºC ambient.
Power Supply for DLRO200 for full output (unsmoothed DC)    100 to 265 V 50/60 Hz with a load less than 19 mΩ (supply >207 V rms), or 11 mΩ (115 V rms) including current leads
Power Supply for DLRO200-115V for full output (additional smoothing)    100 to 130 V 50/60 Hz with a load less than 11 mΩ including current leads
Test Modes    Manual, Auto, Continuous.
Test Time    10 seconds NORMAL /AUTO mode. Refreshed every 2 seconds in CONTINUOUS mode
Display    Large, high resolution backlit liquid crystal display
Warnings    Current flowing: - LED. Other warnings are shown on the lcd display
Data Transfer    Real time or batch download via RS232 using Download Manager.
Storage Capacity    300 result sets and memo, battery backed for 10 years.
Memo Field    160 characters max.
Test Current Range    10 A to 200 A d.c.
Accuracy    ±2% ±2 A
Voltmeter Input Impedance    >200 kΩ
Hum Rejection    5 V rms 50 Hz/60 Hz
Temperature Operation    -10 to +50 ºC (-14 to +122 ºF)
Storage    -25 to +65 ºC (-13 to 149 ºF)
Calibration    20 ºC
Co-Efficient    <0.05% per ºC
Max Humidity    95% RH non-condensing
Max Altitude    2000m
Safety    IEC 61010-1
EMC    IEC61326-1
Dimensions    410 x 250 x 270 mm (16.4 x 9.84 x 10.63 ins)
Weight    14.5 kg (excluding test leads) (31.97 lbs)

What's In The Box:
(1) High Current Digital Low Resistance Ohmmeter (DLRO200-EN)
(1) 16.4 ft. (5 m) Lead Set with 2 x 50 Sq. mm Current Leads with Clamps and 2 x Potential Leads with Clips (6220-755)
(1) RS232 Download Cable (25955-025)
(1) Download Manager (6111-442)
(1) User Guide CD (6172-763)
(1) Quick Start Guide
(1) Warranty Card