Megger DLRO600 Digital Microhmmeter

Megger DLRO600 measures resistances between 0.1 µohms and 1 µohms, 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.

•  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 complete with 5 m test leads and download software

The unique design allows the weight and size of DLRO600 to be kept to a minimum; the instrument weighs less than 5kg. 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 contact resistance testing in circuit breakers and switchgear and busbar joints or other applications where high current is needed.

Megger DLRO600 measures resistances between 0.1 µΩ and 1 Ω, 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. The unique design allows the weight and size of DLRO600 to be kept to a minimum; the instrument weighs less than 15kg.

Included Accessories:

• 5 m (16.4 ft.) Lead set set comprising 2 x 50 mm2 current leads with clips and 2 potential leads with clips
• Download Manager
• User Guide on CD-ROM
• RS232 download cable
• Quick Start Guide
• Warranty card

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 an upper limit to the allowable test current. DLRO600 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. DLRO600 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.

Measuring individual joints in a busbar is a good example of the convenience to be gained by using AUTO mode. The two current leads are connected to the ends of the busbar. They will remain connected here until all tests have been completed. When the voltage leads make contact across a joint, DLRO600 detects that all four leads are connected, carries out a test and stops. When you move to the next joint DLRO detects the new completed circuit automatically and carries out the next test, and so on until all joints have been tested. The results may be stored automatically and may be recalled to the display or downloaded for review.

Bank/Public Holidays

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

• Zones A & B  - Mainland delivery rates apply. 
• Zone C - Scottish Highlands (Charges are calculated at the checkout).
• Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
• Zone E - Northern Ireland (Charges are calculated at the checkout).
• Zone F - Republic of Ireland (Charges are calculated at the checkout).
  
  

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export 

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
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