The Finest Meter Test Leads I Have Ever Used
OLDAKER TEST LEADS. These things make Fluke and other test leads look like they were manufactured in Ethiopia. Extra long length. Hardened STAINLESS STEEL tips that are as sharp as a hypodermic needle...
Forum Discussion
Argosy24 wrote:
A clamp meter will check voltage and current in a wire WITHOUT leads, simply put it around the wire.
current yes, IF you can get it around one of the conductors. around both conductors in the circuit path and it will read zero, since it reads the sum of the currents and they are 180degrees out of phase and cancel.
Good once currents are in the amps. If your talking milliamps or even 10's of milliamps, it takes a good current probe accy hooked to a good scope to do accurate current measurements.
Voltage???? I'm not aware of any accurate clamp on voltmeter. Yes, it is theoretically possible, but not practical. to many issues around the surrounding fields, ground planes, other conductors that make is pretty impractical.
Yes, a good clamp on amp meter with a decent hall device and circuit coupled with a decent low frequency core is VERY Handy and often my first tool, can give great qualitative results and determine if further investigation is needed.
Yes, clamp on voltage meters for high voltage transmissions systems have been built and are in use, but pretty specialized.
