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On Wed, 2 Jun 2004 11:15:29 -0400, "Eike Lantzsch, ZP6CGE"
wrote: I prefer a Fluke anyway. This is why: [snip] They are good. For what it is worth, I bought a big Fluke 5 1/2 digit 8520A ten or more years back used. It is still going strong. I hardly ever use some of its fancy features, but I do use 4-wire resistance sometimes. It is hardly portable (rack mount size) but great on the bench. Here's a story about its resistance to abuse: At some flea market I once acquired some strange glass encapsulated resistors. They were at least an inch long and very high resistance (100Mohm or more as I recall). It occured to me I could use one or two to make a nice HV probe. So I built a divider inside a plastic tube. I found a HV dc/dc supply in my junk that I think was in the 1-2 kv range. I turned it on, and tried measuring with my new probe plugged into my Fluke. The plastic tube was clear, and to by horror, when I touched the probe on the HV the glass resistor lit up. (I'm guessing they were gas filled to do this on purpose, but I really have no clue why it happened -- the voltage should not have jumped the gap in air.) So as I see this happening in the probe, I hear the Fluke make strange unpleasant clicking noises. I look over at my favorite meter and the display is now in Klingon. With great sadness I power cycle the meter and to my amazement the meter looks fine. I have never seen any indication that anything was permanently injured. Try that with a cheapo meter. Not that I have anything against the cheap ones -- I have several. |
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