[Gllug] Revisiting clamp ammeters

Simon Wilcox essuu at ourshack.com
Tue Nov 23 11:05:23 UTC 2010


This was discussed a while ago and the advice at the time was that clamp 
ammeters could only measure a single wire, clamp them round a standard 
3-core cable and they don't work.

This device seems to claim that it works round standard cables:

http://www.unitetechnologies.com/products/power-monitoring--control/cl-amp.aspx

The paper catalogue for Comms Express explicitly says it monitors 
'standard 3 core single phase AC power cables' although it doesn't seem 
to say exactly that online:

http://www.comms-express.com/products/unite-cl-amp-single-unit/

Has anyone any experience with these, they're hardly cheap but might be 
rather useful if they actually work as advertised ?

Simon.
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