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<DIV>Or if you want data quick and easy, the AstroFlight Whattmeter provides a direct readouts up to 100 amps, 60volts, 6,000 watts. Also shows the</DIV>
<DIV>amps put in during charge. It does not have an internal battery, it needs at least 4 volts from the battery under test/charge.</DIV>
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<DIV>Later, Ron Lockhart</DIV>
<DIV> </DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR><BR>> <BR>> <BR>> On Jun 14, 2005, at 2:13 PM, Jim_Woodward@beaerospace.com wrote: <BR>> <BR>> <BR>> <EXCERPT><SMALLER>I'm wondering what the sources are for a good watt <BR>> meter (for Hacker C50 14 XL setup), and an inexpensive IR temp gun <BR>> are.</SMALLER> <BR>> <BR>> </EXCERPT><BR>> <BR>> Let's see: amps times volts equals watts for DC circuits. So, if you <BR>> know the source voltage (with a voltmeter) and the current (using an <BR>> ammeter), you can determine watts. I use a digital voltmeter and a <BR>> Sears Craftsman 82062 DC/AC clamp meter for the respective <BR>> measurements. I don't know what the upper limit is for the Sears <BR>> clamp meter, but I have used it to measure about 50 amps. It appears <BR>> to be very accurate (compared with sophisticated bench measurement <BR>> devices) and costs less than $49.95 (occasionally $39.95 on sale). <BR>> <BR>> <BR>> Ron Van Putte <BR>> </BLOCKQUOTE></body></html>