High Resolution:0.01μΩ
Max test current: 100A
Standard resistor to conduct accuracy test
Handheld device, rugged and easy-to-operate'
High stability with open circuit and overheating protection
Choose from two packaging options.
The S452 Microhmmeters is high-precision instruments specifically engineered to measure contact resistance in high-voltage electrical systems. Over time, mechanical wear, thermal cycling, and environmental oxidation cause the contact resistance of electrical joints to increase. If left unchecked, this added resistance generates dangerous localized heating, which can lead to catastrophic equipment failure and power outages.
By injecting 100A DC current, these microhmmeters successfully break through surface oxidation to capture the true electrical resistance of the connection. Utilizing the advanced four-wire Kelvin measurement method, the testers completely eliminate the resistance of the test leads, ensuring accuracy down to the micro-ohm level.