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DumHed
Experienced Roboteer
Joined: 29 Jun 2004
Posts: 1219
Location: Sydney
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don't clamp meters only work on AC current, since they're an inductive pickup?
With no change in magnetic field (ie, not AC current) there'll be no signal generated in the clamp.
It should work for peak inrush currents on DC stuff, but accuracy will be questionable.
What you really need is a current shunt, which is a large, low value, high wattage resistor. Jaycar now sell current shunts, which is handy!
You can read the current by measuring the voltage across the shunt and I=V/R
Also, there's a clamp meter that works with a normal multi meter, and it's cheap. I think I paid $25 for mine. _________________
The Engine Whisperer
- fixer of things
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Wed Jul 14, 2004 5:08 pm |
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