• High-current microhmmeter measures resistance in circuit breaker contacts, switch contacts, bus-bar joints, and other high-current systems.
• Autoranging digital meter for safety and ease of use.
• Stores up to 300 sets of results with memos for PC download or direct output to a printer via RS232 port.
• Measures resistance from 0.1 microhms to 1 ohm with test currents from 10 to 200A.
• Safety rated to European Standard EN61010-1.

The Megger DLRO200 series digital microhmmeter measures resistance in switch and breaker contacts, bus-bar joints, and other high-current electrical systems. The meter is autoranging and digital for safety and ease of use. The internal memory stores up to 300 sets of results, which can be annotated with notes by the user. The results and notes can be downloaded to a PC or directly outputted to a printer via the RS232 port. The microhmmeter measures resistance from 0.1 microhms to 1 ohm, with test currents from 10 to 200A. The unit is safety rated to European Standard EN61010-1. The DLRO200 series is used by electricians and electrical contractors. Electrical test meters report electrical circuit properties, such as voltage, resistance, capacitance, and continuity. Available in handheld or benchtop form, they detect electrical problems in equipment, wiring, and power supplies. A variety of probes, clamps, and leads can be used to connect the meter to a circuit or device. Single-function meters, such as battery testers and voltage testers, measure one property of a circuit, and multimeters measure multiple properties. Electrical test meters display information either in analog form using a needle that moves on a calibrated scale, or in digital form on an LED screen. Meters have electrical properties that are to be measured and the anticipated range of results, and should have a rating that is higher than the maximum value of the anticipated range. Meters measure electrical properties and are safety rated to measure a specific range of results. The range on the meter should be higher than the maximum anticipated value to be measured. An electrical test meter has multiple settings corresponding to potential ranges of values for the properties it can measure. A manual ranging meter requires the operator to flip through different settings until the correct range is reached. An autoranging meter cycles through range settings automatically until it reaches the correct range. Megger manufactures equipment for cable fault locating, protective relay testing, telecommunications and data integrity, and power quality testing under multiple brand names, among them Megger, Biddle, States, and AVO. The company, founded in 1889, is headquartered in Dover, England, and meets International Organization for Standardization (ISO) 9001:2008 standards.