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In Reply to: beg pardon... posted by Vinnie on April 11, 2007 at 15:53:46:
It's a "fluke" due to autoranging when measuring some inductors. As it switches to the lower range, the current goes up, and so does the voltage drop (momentarily), causing it to switch back to the higher range. So just set the range manually and all will settle out. And use insulated clips - DON'T be touching the wires when you OPEN the circuit. Don't ask how I know this...
Follow Ups:
I love my flukes, but I've had this glitch. Of course, I know the workaround; go on manual and get to the range that gives you the reading. Thanks for elucidating the mechanism.No, boyze, your Flukes are not P O S. I have three, two 27s (the pride of my bench), and a 73 for my road axe. On any measurement, these three (one calibrated a year ago, one three, one no data) agree to the third significant figure.
The 27 is O-ring sealed, built for mine safety, and all that good stuff. Doubles as a hammer. I'd think it would be the best one to have bouncing around in the car. I still have mine (somewhere) and it has to be over 20 years old.Don't be in a hurry to upgrade. I have the new 189 and it has some nice features but it is big and....well....I liked my old model 87 more....what can I say. They also changed the amp probes....for the worse.....and the lifetime warranty looks to have gone away as well.
and comes in that bright yellow condom, so I can find it in the pile with my specs off.All the Flukes have sort of a dark display, don't they? You got to have real good light on them to read them easily.
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I agree with russ57 but I think it's a service feature built in. The 87, 787 and 789 are standards in my trade. Rough tough and built to take a licking like in the coal fired powerhouse I'm working in now.
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