Bill Entity
member
Joined: 18/02/04
Posts: 22
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suggestions of good DMM below £50
#962284 - 06/01/12 07:41 PM
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hi! i need something that is going to be fairly future proof, if i decide to
get more into electronics (i.e. building kits) but currently need something to test cables
and general electronics pottering about in the studio. below £50. suggestions please!!! thanks in advance
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Martin Walker
Watcher Of The Skies
Joined: 28/02/01
Posts: 16393
Loc: Cornwall, UK
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Re: suggestions of good DMM below £50
[Re: Bill Entity]
#962300 - 06/01/12 08:42 PM
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Hi Bill! I would have thought any reasonable DMM would do the job - here's one
from Maplin at £39.99 for instance: www.maplin.co.uk/ut60a-autoranging-digital-multimeter-with-pc-interface-46
381 Martin
-------------------- YewTreeMagic
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grab
Joined: 08/07/07
Posts: 2626
Loc: Cambridge, UK
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Re: suggestions of good DMM below £50
[Re: Martin Walker]
#962378 - 07/01/12 12:29 PM
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Got something similar to that myself. TBH though I find auto-ranging a pain, and it
doesn't do much that a cheaper DMM can't do just as well.
I've also got a small
cheapo one that lives in my go-to box of adaptors and stuff, for emergency diagnosis of
problems at the gig. You might as well start with one of them, and get a fancier one later
if you feel you need it.
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~Paul
Joined: 01/09/04
Posts: 1793
Loc: South Herts/North London
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Re: suggestions of good DMM below £50
[Re: Bill Entity]
#962416 - 07/01/12 03:55 PM
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Nowt wrong with the Maplins ones! (I wish I could say that for everything else in
there..) I got a good (Precision Gold) meter there some time ago, and its still going
strong. And it was only £20-£30.. Plus it does all kinds of stuff which I later found
quite useful, such as testing transistors for gain matching, etc.
-------------------- Paul
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ef37a
Joined: 29/05/06
Posts: 5629
Loc: northampton uk
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Re: suggestions of good DMM below £50
[Re: Bill Entity]
#962516 - 08/01/12 07:29 AM
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http://cpc.farnell.com/extech-instruments/ex330/multimeter-dmm-v-detect/dp
/IN04961This^ is said to have a capacitance range of 200mfd to ONE puff!
Handy for the hobbyist for you definately want a capacitance range but many meters do not
go below 22 or even 47nF (but there are tricks!). If you are likely to mess with
power amps or power supplies a temperature range is nice to have with the associated
standard two pin input. For a little more than £50 you could get a SPL facilty as well.
Frequency is pretty vital as well. But! Whatever you buy as the main meter buy a
second super cheapy as well. This can knock about for day to day work and many times you
will find having two meters on a circuit far easier and generally safer than re plugging
one. This last is especially true of valve circuits. Also invest in some
(insulated!) croc-croc leads. Much safer to "croc up" THEN switch on! Dave.
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Folderol
Joined: 15/11/08
Posts: 2554
Loc: Rochester, UK
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Re: suggestions of good DMM below £50
[Re: Bill Entity]
#962534 - 08/01/12 11:31 AM
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That one (Dave's) looks like a bargain, and I agree very much with his comments about a
2nd meter etc.
Also be cautious with auto ranging meters. It is very easy to
confuse 230mV with 230V, whereas with a manually selected range the mistake is impossible
to make. I know some meters show a lighting strike when there is a high voltage but when
you are deep in thought you can easily miss this.
Finally, get into the habit
of removing the probes from the meter immediately after measuring current.
Forgetting can do a lot of damage!
-------------------- It wasn't me!
(Well, actually, it probably was)
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Martin Walker
Watcher Of The Skies
Joined: 28/02/01
Posts: 16393
Loc: Cornwall, UK
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Re: suggestions of good DMM below £50
[Re: Bill Entity]
#962744 - 09/01/12 11:48 AM
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Ah, I hadn’t noticed the auto-ranging on that Mapplin model - these modern youngsters
are too clever by half  Like others I’d prefer to stick with the old and trusted manual range variety - start
high and work your way down  Martin
-------------------- YewTreeMagic
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James Perrett
Joined: 10/09/01
Posts: 9660
Loc: The wilds of Hampshire
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Re: suggestions of good DMM below £50
[Re: Bill Entity]
#962789 - 09/01/12 02:17 PM
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I've got one of these http://cpc.farnell.com/duratool/dt830b/multimeter-digital/dp/IN05645which was dirt cheap and works fine for general testing. The only thing missing
is an audible continuity tester. I have also heard that they're not so good once you get
over a couple of hundred volts so they're no good for valve gear. I've never
really needed frequency or capacitance on a multimeter and temperature on most meters
tends to be limited to 1000 degrees which is too low for the stuff I need temperature
measurement for. James.
-------------------- JRP Music - Audio Mastering and Restoration.
http://www.jrpmusic.net
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ef37a
Joined: 29/05/06
Posts: 5629
Loc: northampton uk
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Re: suggestions of good DMM below £50
[Re: James Perrett]
#962874 - 09/01/12 06:45 PM
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Yes James that looks fine for the beginner.
They should not be poking about in
valve kit* anyway yet! Same with measuring the mains...Don't! If it is there fine, you
can't do jack about it if it is wrong anyway! And anyway it almost never is wrong. Audible conn' test? Yes, pretty vital if you are making a lot of leads but then a
continuity buzzer+LED is great first project (just don't test transistors with it!) along
with a small test amplifier, one based on the LM386 is very forgiving. Cap tester? I
buy Maps' lucky bags and either the code defeats me (along with the new fangled resistor
code!) or there isn't one. I also have a very nice Levell audio oscillator but you can't
trust the frequency scale for dead accurate work, not that I do any these days, accurate
that is, I still dabble! *But noobs, try to learn it safely if you can.I predict that
if valve amps ARE still around in 20years time you will be able to buy a Roller AND put
petrol in it!
Dave.
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