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From: George Herold on 2 Mar 2010 23:43
On Mar 2, 11:22 am, nesesu <neil_sutcli...(a)telus.net> wrote:
> On Mar 1, 1:21 pm, "amdx" <a...(a)knology.net> wrote:
>
> > It's time, I need to purchase a new multimeter, home benchwork only.
> >  I could work with a autorangeing meter as long as it's not slow.
> > AC, DC, volts, ohms, amps, capacitance ok but I have a cap meter.
> >   I generally use a 0.1 ohm or 0.01 ohm resistor as a shunt to measure
> > current.
> >  I'm looking at the Fluke meters, I want it to last 15 years, the one after
> > that will last my lifetime! I figure on spending around $200.
> >  Any suggestions about another quality brand or Fluke Models?
>
> >                                        Mike
>
> I have a Fluke 75 and a 77 from new [25+ years] and they both are
> working perfectly. Autoranging is fast enough that it is usually
> unnoticed. 9V batteries last for years in my usage. I also have a pair
> of Fluke 8000 bench DVMs, one with the Monsanto 'pin-point' LED
> display, the other with the later 'light pipe' display and both with
> internal NiCd battery pack. The still both work accurately but one has
> a somewhat flakey switch.
> I bought a cheap 'Canadian Tire' DVM I could take were I needed a
> simple troubleshooting tester and there was a risk of loss or
> destruction. It cost about $9 and is better than 1% on all ranges.
>
> Neil S.

I blew up my Fluke 77... big sigh, don't ask, it was a silly mistake
and I won't make it again.

I loved that meter.

George H.
From: Michael A. Terrell on 3 Mar 2010 00:50

John Larkin wrote:
>
> On Tue, 02 Mar 2010 11:49:08 -0800, Jeff Liebermann <jeffl(a)cruzio.com>
> wrote:
>
> >On Tue, 2 Mar 2010 09:03:35 -0600, "amdx" <amdx(a)knology.net> wrote:
> >
> >>Hows the low ohms range, the problem I have with my meter is on
> >>low ohm range. When I short the leads it might read 15 ohms, pull
> >>the leads, twist, yell at them and it may go down to 0.5 ohms.
> >
> >That's not the leads. It's the bananna jack connector where it
> >enters the meter. It might also be a broken wire.
> >
> >I have that problem with every meter I own and use the same fix. Spin
> >the bananna jack. I just noticed I have a Extech 22-816 True RMS
> >Multi-meter on my desk. No idea who left it here or where I stole it
> >from. Works nicely on low ohm. About 0.5 ohms without spinning the
> >bananna jacks. About 0.3 after.
> >
> >>I have used Cremolin on them but this is a problem that is getting old!
> >
> >Clean out the residual oil and grease. Start over.
> >
> >>The other day I had an odd reading and had to rotate the function switch
> >>to get a normal reading. This is a Tenma.
> >
> >Sorry, no experience with Tenma.
> >
> >>I have a Beckman HD 110 that
> >>went flakey many years ago
> >
> >I bought one of those at a club meeting. Most of the attenuator
> >section was blown. I gave it to a friend for parts.
> >
> >>and a Fluke 77 that a battery leaked in.
> >
> >Nice work. I wrap my 9v batteries in cellophane foil.
> >
> >>Meters
> >>I should have tossed them 15 yrs ago, but ya know "someday" I might fix
> >>them. ;-)
> >
> >I had my pile also. However, I use them often enough that I recycled
> >all my $5 Harbor Freight DVM's and got something better (Extech).
>
> I have an Extech DVM/thermocouple thing and it's pretty nice. I
> haven't blown it up yet.
>
> The Extech stuff is generally pretty good. FLIR recently bought them
> (probably to sandbag their IR imager project) so I don't know if they
> can stay pretty good.


Have you seen this DMM at Harbor Freight?

<http://www.harborfreightusa.com/usa/itemdisplay/displayItem.do?itemid=98674&submit2=find+it>

It appears to be a Mastech MS8229, which some places sell for $99. I
bought the HF meter on sale for $29.99. The regular price is $39.99

It is on sale for $29.99 to their 'Inside Track Club' members,
through 03/31. That price isn't available without paying to join the
ITC.

<http://www.multimeterwarehouse.com/MS8229.htm>


--
Greed is the root of all eBay.
From: Jeff Liebermann on 3 Mar 2010 03:42
On Tue, 02 Mar 2010 22:03:03 -0600, Jim Yanik <jyanik(a)abuse.gov>
wrote:

>Jeff Liebermann <jeffl(a)cruzio.com> wrote in
>news:1dfro5ls0okjnjel0upb3i5k0g4qvidmqu(a)4ax.com:
>> For a status symbol, I would show off with my tiny Tek 213
>> oscilloscope with a built in DVM. It scribbles 7 segment digits on
>> the CRT screen. Battery powered and really cute. I would use it
>> today but the batteries died and I keep forgetting to get some NiCd D
>> cells with tabs.
>><http://www.teknetelectronics.com/Search.asp?p_ID=16843>

>It's amazing you have a 213 that's still operational.

Well, I've taken fairly good care of it.
<http://802.11junk.com/jeffl/pics/drivel/slides/tek213.html> (400KB)
Having the DVM in the scope was rather handy as it was yet another
piece of junk I didn't have to drag around. At the time, the
fashionable (analog) meter was a Simpson 260 which about the same size
as the scope. The only problem was seeing the CRT when outdoors,
which I solved with a cardboard or black towel hood. When I graduated
to a service monitor, the scope became redundant. These daze, I use
my laptop as a scope with either sound card based software for audio:
<http://www.sillanumsoft.org/prod01.htm> (Free)
or a USB scope:
<http://www.syscompdesign.com/CGR101.html> ($190)

>One thing to watch out for with them is that the circuit boards are all
>held in place by 4 little plastic pins in the case halves.
>Under the treatment field service people would give the 213, those pins
>sheared off or came out out of the case halves,and then the PCBs shift and
>spread open the female connectors on the PCB edges,and little metal spring
>leafs fall out and short out circuits.
>sometimes with catastrophic results,like internal fires and/or melted case.

Thanks for the warning but I don't recall seeing any broken plastic
pins or spring things floating around inside. However, I will be a
bit more careful now. I'll be going inside shortly to replace the
batteries.

--
Jeff Liebermann jeffl(a)cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
From: Keith on 3 Mar 2010 19:34
On Tue, 2 Mar 2010 08:22:55 -0800 (PST), nesesu <neil_sutcliffe(a)telus.net>
wrote:

>On Mar 1, 1:21�pm, "amdx" <a...(a)knology.net> wrote:
>> It's time, I need to purchase a new multimeter, home benchwork only.
>> �I could work with a autorangeing meter as long as it's not slow.
>> AC, DC, volts, ohms, amps, capacitance ok but I have a cap meter.
>> � I generally use a 0.1 ohm or 0.01 ohm resistor as a shunt to measure
>> current.
>> �I'm looking at the Fluke meters, I want it to last 15 years, the one after
>> that will last my lifetime! I figure on spending around $200.
>> �Any suggestions about another quality brand or Fluke Models?
>>
>> � � � � � � � � � � � � � � � � � � � �Mike
>
>I have a Fluke 75 and a 77 from new [25+ years] and they both are
>working perfectly. Autoranging is fast enough that it is usually
>unnoticed. 9V batteries last for years in my usage. I also have a pair
>of Fluke 8000 bench DVMs, one with the Monsanto 'pin-point' LED
>display, the other with the later 'light pipe' display and both with
>internal NiCd battery pack. The still both work accurately but one has
>a somewhat flakey switch.

I still have two Fluke-77s, from '88 or so. The third walked off...

>I bought a cheap 'Canadian Tire' DVM I could take were I needed a
>simple troubleshooting tester and there was a risk of loss or
>destruction. It cost about $9 and is better than 1% on all ranges.

....so I bought a few $4 Harbor Freight meters to keep in sight, for borrow
bait.
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