Watt Meter, IR temp gun

Ron Van Putte vanputte at cox.net
Tue Jun 14 11:47:02 AKDT 2005


On Jun 14, 2005, at 2:13 PM, Jim_Woodward at beaerospace.com wrote:

> I'm wondering what the sources are for a good watt meter (for Hacker 
> C50 14 XL setup), and an inexpensive IR temp gun are.

Let's see: amps times volts equals watts for DC circuits.  So, if you 
know the source voltage (with a voltmeter) and the current (using an 
ammeter), you can determine watts.  I use a digital voltmeter and a 
Sears Craftsman 82062 DC/AC clamp meter for the respective 
measurements.  I don't know what the upper limit is for the Sears clamp 
meter, but I have used it to measure about 50 amps.  It appears to be 
very accurate (compared with sophisticated bench measurement devices) 
and costs less than $49.95 (occasionally $39.95 on sale).

Ron Van Putte
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