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Multimeter buying recomendations

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rednekelmo

05-10-2002 19:15:11




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well I've come to that point in my life where i kneed a good multimeter but since they range from $30 to $ 350 i thought i should get some advice on where to start and what features are nice and which are usless.I will be useing it primarly for equipment and auto service not AC stuff




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Thanks guys......Al English

05-14-2002 16:31:05




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 Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
Recently I zorched(there was a blue light glowing from inside the meter) the Triplett analog meter I've had for many years. I plan to replace it with a digital. Your tips and information are appreciated...Al English



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davefr

05-13-2002 07:39:28




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 Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
Dittos with the suggestions to buy a Fluke. If however you want an analog meter than check out EBAY. There are some Triplett multmeters that sell pretty inexpensively because everyone wants digital. Some some measurements, I prefer analog.



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rednekelmo

05-12-2002 18:33:20




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 Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
thanks guys I think i'll bite the bullet and drop a couple hundred for a Fluke that can do everything i'll ever need for a good many years to come



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revredneck

05-11-2002 14:17:35




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 Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
Redneckelmo,
I agree with Mark B.'s comments. He obviously knows what he's talking about. I would add one other caviat, though. Make sure any meter you buy has at least a 10 Amp capability for the ammeter function, and that it has an internal fuse for that. A lot of otherwise good meters have only a 2 Amp capacity, which is useless for most all automotive functions. Also, the fuse deal is VERY important, because you WILL blow it at some time or another. My first DMM didn't have the fuse built in, and when I overloaded it, I was out of luck. Words to the wise. I personally own a Fluke 23, but you should be able to find a decent priced meter at Sears or somewhere like that. Good Luck and God Bless,
Tommy

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JD40C

05-11-2002 11:08:53




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 Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
You can always scour ebay as well, just be careful as some auctions end up going for more than the new price for the same item.



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G Taylor

05-11-2002 07:05:10




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 Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
As previously posted high imput impedance is required to test O2 sensor out puts etc. The frequency range of my Radio Shack (Rat Shack) gets used to set generator governors. I've seen new off the shelf portable generators running from 52 to 66 Hz. Voltages range from brown out to burnout too before setting rpm & excitation. I've used the temp probe several times on vehicle rads. For fast changing variable outputs I'm thinking of finding a Simpson 260 to use. The digital sometimes bounces all over the place.

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MarkB

05-11-2002 05:31:27




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 Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
I have a Fluke model 77 that I've had for about 15 years, I've never had a bit of trouble with it. I bought my son one of the newer (cheaper) Fluke meters and he immediately trashed it. Still, I don't think you can go wrong with Fluke; they dominate the handheld DMM market, and for good reason. If you aren't going to use it that much, any of the cheaper meters will do fine. Otherwise, expect to shell out 200 bucks for a meter that will last the rest of your life.

I don't recommend an analog meter. I have a Simpson 260 analog that I used for years, but it never leaves the tool box now. Analog meters are delicate and typically have very low input impedances.

The only feature that I miss on the Fluke 77 is a frequency meter; if I were to buy another meter I would make certain that it has this feature, although most people don't need it. Another nice-to-have feature is a capacitance meter.

Features that you must have:

  • Diode check capability. (Early DMMs couldn't test diodes, almost all the newer ones can.)

  • Touch hold. (The ability to capture a reading and freeze it.)

  • Audio continuity test (Usually included with the diode check.)
  • The big difference between really cheap and really expensive meters is the accuracy. Cheap meters will typically have only 2.5 digits, meaning they can indicate from 0.00 to 1.99. Expensive meters have 4.5 digits, so they can indicate 1.9999. The Fluke 77 reads from 0.000 to 3.200, making it a three and a half digit meter.

    Another difference between cheap and expensive meters is speed. Most of the cheap meters today are acceptably fast, but it is very aggravating to have to wait several seconds for the meter to lock onto a reading.

    If you have a need to measure very low resistances, say less than one tenth of an ohm, you will need a "four wire" meter. This is a feature normally found only on lab meters.

    One other thing: Fluke has a number of specialty meters, for automotive, etc. These are typically very pricey, but check them out before you decide. You may have a need for one of the functions that are not available on a general purpose meter.

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    Robbman

    05-22-2002 16:34:21




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     Re: Re: Multimeter buying recomendations in reply to MarkB, 05-11-2002 05:31:27  
    77 is the way to go. Used one in industry repair for 10 years and it is still in my work shop measuring anything I need around the house. I bought one of the 80 series flukes when I thought I lost the 77. It went in the trash 6 months after I had it. New style Junk.



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    Bob M - second that!

    05-12-2002 10:04:10




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     Re: Re: Multimeter buying recomendations in reply to MarkB, 05-11-2002 05:31:27  
    I too have owned (and abused) a Fluke 77 for 15+ years. It does everything I need and more, and has proven to be absolutely bullet proof. Only service it's needed is a new 9V battery every 4 or 5 years, and several fuse replacements required due to operator (me!) screwups. Best $120 I ever spent...

    Recently I acquired Fluke 87 series III. Has a few more handy features over the 77: min/max recording, delta measurement and frequency (can use it as a tachometer). Also has an illuminated display which is great when field troubleshooting under poor lighting conditions.

    Cheaper meters are OK, but you get what you pay for...

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    JD40C

    05-10-2002 21:48:53




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     Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
    Fluke makes the best meters, but they are pricey. I bought a Radio Shack DVM ten years ago and it's still kicking. It even came with a temp probe.



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    Kevin

    05-10-2002 21:15:39




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     Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
    For automotive and shop use I would get an analog meter of 20k ohms/V sensitivity for the applications you suggest. As someone else suggested, the Radio Shaft is about as good as anything for household use. If you want a digital meter, just buy whatever is cheep. You don't need RMS reading or any of that crap around the garage.

    Typically, more important than the meter, is understanding how to use it. A goodly portion of the people I encounter with pricier meters are rather like many Harley-Davidson owners; more attitude than ability. Save your money for tractor parts.

    My opinion and $1 will get you a cup of coffee in some places.

    kevin

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    Dave D

    05-10-2002 20:07:56




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     Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
    A couple of very Nice features to have are Auto ranging and Auto off



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    Glenn(WV)

    05-10-2002 19:49:35




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     Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
    Dad and I have used Radio Shack multimeters for years. I doubt they are as good as a Fluke, but for our purposes they work fine. Dad's got one that's right at 20 years old. He's used it on everything from household electrical to cars to batteries to electric motors/contactors to ?? ...



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    bbott

    05-10-2002 19:23:51




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     Re: Multimeter buying recomendations in reply to rednekelmo, 05-10-2002 19:15:11  
    I like Fluke test equipment in general.

    Link

    Their old slogan was the best.
    "If it works, It's a Fluke"...

    -- bbott



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