Megger DLRO200-115 Digital Low Resistance Ohmmeter

Description

The Megger DLRO200-115 is a compact, portable digital low-resistance ohmmeter, or micro-ohmmeter, used for precise measurement of very low resistance in a variety of industrial applications. It is well-suited for high-current testing of electrical components such as circuit breaker contacts and busbar joints.

Key features

• Measurement range: 0.1 µΩ to 1 Ω.
• Test current: Variable from 10 A to 200 A DC.
• Best resolution: 0.1 µΩ.
• Power supply: 100 to 130 V, 50/60 Hz.
• Output: Filtered direct current output to eliminate magnetic transients.
• Weight: Less than 15 kg (32 lbs).
• Ingress protection: IP54 rating, making it suitable for field use.
• Features
• Four-terminal measurement: The DLRO200-115 uses the Kelvin or four-terminal measurement technique to cancel out the resistance of the test leads, ensuring high accuracy.
• Test modes:
• Normal: Tests resistance by applying the set current for approximately 10 seconds.
• Auto: Tests resistance automatically when the potential leads are connected. This is convenient for testing multiple joints, such as on a busbar.
• Continuous: Monitors resistance over a period of time, taking a reading every 2 seconds.
• Data management:
• Internal memory stores up to 300 test results with notes.
• RS232 port allows for data download to a PC or direct output to a printer.
• PowerDB compatibility for test result storage and management.
• User interface: Features a large, backlit LCD screen and an alphanumeric keypad for setting test currents, limits, and adding notes to stored results.