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RENTAL: Digital Micro-ohmmeter, 10A to 600 A dc for hire
Megger DLRO600, 0-600A ductor (microhmmeter). Measures small resistances very accurately at currents up to 600A.

Our Price:
890.00 $/week

The Megger DLRO600 is a high performance ductor tester that measures resistances between 0.1 μOhm and 1 Ohm at high currents. This versatile instrument can provide test currents from 10 amps up to 600 amps subject to the load resistance and supply voltage. A large liquid crystal display provides all the information needed to perform a test; all test parameters and measurement results are displayed. It is the ideal instrument to hire when ductor testing for high currents up to 600A is required.

The unique design allows the weight and size of DLRO600 to be kept to a minimum This unit weighs less than 15kg. This small size makes DLRO600 equally at home in the workshop, on the production floor or in the field. The high current capability and compact design make DLRO600 suitable for testing circuit breaker contacts, switch contacts, busbar joints or other applications where high current is needed.

300 sets of results may be stored in DLRO600’s on board memory for later download to a PC or may be output directly to a printer via the RS232 port. You may also add notes to any stored result by using the on board alphanumeric keypad, thereby making later identification of results straightforward. As well as adding notes to stored results, the alphanumeric keypad allows you to set the test current directly by typing in the value required. DLRO600 will check the continuity of the test circuit, and will quickly ramp the test current up to the desired level. The keyboard is also used to set upper and lower limits for the result and to prevent the use of excessive currents by setting the upper limit to the allowable test current.

This unit uses a four terminal measurement technique to cancel the resistance of the test leads from the measurement.

DLRO600 operates in one of three modes, which are simply selected from the on screen menu.

  • CONTINUOUS mode is provided for users who wish to monitor a resistance over a period of time. Connect the test leads, select the test current and press the TEST button. This will pass a current continuously, and measure the resulting voltage at 2- second intervals, until the test button is pressed to stop the test or the test circuit is interrupted.
  • In NORMAL mode you connect the leads, select the test current and press the TEST button. The test current will ramp up to the desired level, hold for 2 seconds and then ramp down. The whole process takes approximately 7 seconds.
  • In AUTO mode select the desired current, connect the current leads and press the TEST button. The TEST lamp will flash to show that the DLRO600 is ready to carry out a test. As soon as the potential leads are connected, a test will start. To repeat a test, simply break contact with the voltage probes and remake contact.


  • Small and weighs less than 15 kg
  • Test currents from 10 A to 600 A dc
  • 0.1 µohms best resolution
  • On board memory for up to 300 test results and notes
  • RS232 port to download stored results or for real time output to a printer

Supplied with:

  • Documentation on USB stick:
    • PDF User Manuals
    • Megger Download Manager software and utilities
  • 5m Lead set:
    • 2x 50mm2 current leads with clamps
    • 2x Potential leads with clips
  • RS232 Communications Cable
  • Calibration Certificate
  • Transit Case

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Prices are in Australian dollars and do not include GST.
10% GST will be added to all quotations and invoices.
Minimum order value $100 ex. GST.

  Measurement Rentals
Unit 6, 9 Merino Entrance
Cockburn Central, WA 6164
Tel: (08) 9414 7800