MEGGER DLRO600 Digital Micro-Ohmmeter

Megger DLRO600 Low Resistance Ohmeter Details
Megger's DLRO600 is a low resistance measuring device that can be used to quickly determine either a single measurement value or test resistance levels over a time period.

The measuring range of the DLR600 (subject to supply voltage and leads used) is from 0.1μΩ to 999.9mΩ. The tester uses varying test current from 10A up to 600A and all tests are carried out with high basic accuracy and resolution.

Three different testing modes are available on the DLR600: Normal, Continuous and Auto. Normal tests just like you'd expect and applies a current to measure resistance for a few seconds. Continuous maintains the test current over a time period to measure resistance differentials, and auto mode automatically applies the most applicable level of current to ensure that results are as accurate as possible. Tests on the DLR600 also use four-wire methods, ensuring that the effects of the resistance of the leads doesn't interfere with the resistance reading.

Once testing is finished the data can be directly stored on the DLR600's built-in memory which allows storage of up to 300 individual testing records. An alpha-numerical keypad also allows notes and adjustments to be made to stored data, while an RS232 port on the tester allows download to PC and a printer.

Megger DLRO600 Low Resistance Ohmmeter Key Features
Small, lightweight design
Test current from 10A to 600A DC
0.1μΩ best resolution
Memory stores up to 300 testing records with nores
Download to PC or a printer
Keyboard for data entry
Three measurement modes: Normal, Continuous and Auto

Full List of Products Included
Megger DLRO600 Low Resistance Ohmmeter
5m (16.4ft) Lead Set - 2 x 50mm Current Leads with Clips and 2 Potential Leads with Clips
Download Manager
User Guide on CD-ROM
RS232 Download Cable
Quick Start Guide in English/French
Warranty Card

Megger DLRO600 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 100 µΩ to 100 mΩ
Output Current:The chart above shows the maximum output current available atdifferent supply voltages with a 4 mΩ load (i.e. standard 5 mcurrent leads only) and with a 7 mΩ load
Current Lead Resistance (Megger supplied leads)
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 60 seconds at 600 A @ 20ºC ambient.
Full output:  207 to 265 V 50/60 Hz with a load less than 7 mΩ including current leads
Reduced output: Down to 100 V 50/60 Hz.
Test Modes: Manual, Auto, Continuous.
Test Time: 7 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: 200 characters max.
Test CurrentRange: 10 A to 600 A unsmoothed d.c. in 1 A steps
Accuracy: ±2% ±2 A
Voltmeter input impedance: >200 kΩ
Hum rejection: 5 V rms 50 Hz/60 Hz
TemperatureOperation: -10 to +50ºC
Storage: -25 to +65ºC
Calibration: 20οC
Co-efficient: <0.05% per ºC
Max. Humidity: 95% RH non-condensing
Maxi Altitude: 2000 m
Safety: IEC61010-1
EMC: IEC61326-1
Dimensions: 410 x 250 x 270 mm
Weight: 14.5 kg (excluding test leads)