The gaps in joined conductors may accumulate contaminants like moisture, dirt and grease, and as the contaminants accumulate between the joined metals, they introduce resistance. Used to measure junction resistance of joined conductors, Micro-Ohmmeters can evaluate the internal condition of the joined metals.
Keep your equipment running at peak performance with Micro-Ohmmeters from Protec:
The AEMC 6250 is a rugged, low resistance tester designed for both plant maintenance and field use. Utilizing a four-lead Kelvin method, the AEMC 6250 is the most accurate available, with results within 0.05%.
The Megger DLRO 600 is a versatile instrument that can provide test currents from 10 amps up to 600 amps subject to the load resistance and supply voltage.
The Auto-Ohm-200 S3 is Vanguard’s fourth generation, microprocessor-based, true DC meter. It is designed for testing EHV circuit-breaker contact resistances, bushing contact joints, welding joints, or for any low-resistance measuring application.