Clamp meters, known traditionally as clamp-on ammeters, sometimes even as tong testers, fall into three types or categories:
While different, they share the same fundamental methodology when making measurements: A conductor is passed through a probe (either the hard jaws built into a clamp meter, or the flexible coil of a clamp accessory), and the vector sum of the currents flowing through the conductor is calculated by the meter.
Other specialty tools are associated with the clamp meter category. Fluke’s product line addresses a variety of specific troubleshooting issues with clamp-based tools. Some examples:
An advanced tool for measuring current and more