Multimeter+esr meter
Raditecnica de Miguel Ricardo
It is known that an ESR meter is a time saving instrument to check bad caps.
Why big manufaturers like Fluke, Tektronix,.... don't have a multimeter
with a "built in" esr meter ?
Doesn't worth it ?
Miguel
greg szekeres
>Hi
>
>
>It is known that an ESR meter is a time saving instrument to check bad caps.
>Why big manufaturers like Fluke, Tektronix,.... don't have a multimeter
>with a "built in" esr meter ?
>Doesn't worth it ?
I guess you could also include more measurments, inductance, capacitance,
temperature, frequency.
Why limit yourself?
greg
John Bachman
Raditecnica de Miguel Ricardo wrote in message
<7q3nj2$iqo$1...@duke.telepac.pt>...
>Hi
>
>
>It is known that an ESR meter is a time saving instrument to check bad
caps.
>Why big manufaturers like Fluke, Tektronix,.... don't have a multimeter
>with a "built in" esr meter ?
>Doesn't worth it ?
A guess: Many people who are not interested in ESR use multimeters; design
engineers and technicians, network techs, electricians, etc. The design of
an ESR meter has little in common with the design of a multimeter so the
resulting combination would be two sets of circuitry in one package -
probably does not make sense when most of the multimeter users do not want
or need ESR.
Sie
wrote:
>In article <7q3nj2$iqo$1...@duke.telepac.pt>, "Raditecnica de Miguel Ricardo" <radit...@mail.telepac.pt> wrote:
>>Hi
>>
>>
>>It is known that an ESR meter is a time saving instrument to check bad caps.
>>Why big manufaturers like Fluke, Tektronix,.... don't have a multimeter
>>with a "built in" esr meter ?
>>Doesn't worth it ?
>
>I guess you could also include more measurments, inductance, capacitance,
>temperature, frequency.
My Fluke (123) measures Capacitance, temperature and frequency.
I had to buy another (Avo) to measure inductance and yet another to
measure ESR.
>Why limit yourself?
I am also suprised that Fluke did not include ESR measurement,
particullarly in a $1000 meter.
Regards,
Sie
--
Philips Research Laboratories Building
Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands
bob parker
>A guess: Many people who are not interested in ESR use multimeters; design
>engineers and technicians, network techs, electricians, etc. The design of
>an ESR meter has little in common with the design of a multimeter so the
>resulting combination would be two sets of circuitry in one package -
>probably does not make sense when most of the multimeter users do not want
>or need ESR.
G'day,
I'd wondered about this too, and I think John could be pretty right
about the reason. But I'm still expecting to see more ESR meters (with
or without attached multimeters) appearing on the market... these
things are just too useful to service techs for the big instrument
makers to ignore forever.
Cheers,
Bob
bob parker- electronics technician, sydney australia
e-mail: bo...@nlc.net.au
home page: http://www.ozemail.com.au/~bobpar
phone/fax: +61 2 9587 8148
greg szekeres
>On Thu, 26 Aug 1999 16:33:23 GMT, szek...@pitt.edu (greg szekeres)
>wrote:
>
>>In article <7q3nj2$iqo$1...@duke.telepac.pt>, "Raditecnica de Miguel Ricardo"
> <radit...@mail.telepac.pt> wrote:
>>>Hi
>>>
>>>
>>>It is known that an ESR meter is a time saving instrument to check bad caps.
>>>Why big manufaturers like Fluke, Tektronix,.... don't have a multimeter
>>>with a "built in" esr meter ?
>>>Doesn't worth it ?
>>
>>I guess you could also include more measurments, inductance, capacitance,
>>temperature, frequency.
>
>My Fluke (123) measures Capacitance, temperature and frequency.
>I had to buy another (Avo) to measure inductance and yet another to
>measure ESR.
MCM does carry a $50 RLC meter now. I bought their $79
model several years ago.
greg
Tom MacIntyre
>"John Bachman" <jo...@anatekcorp.com> wrote:
>
>>A guess: Many people who are not interested in ESR use multimeters; design
>>engineers and technicians, network techs, electricians, etc. The design of
>>an ESR meter has little in common with the design of a multimeter so the
>>resulting combination would be two sets of circuitry in one package -
>>probably does not make sense when most of the multimeter users do not want
>>or need ESR.
>
>G'day,
> I'd wondered about this too, and I think John could be pretty right
>about the reason. But I'm still expecting to see more ESR meters (with
>or without attached multimeters) appearing on the market... these
>things are just too useful to service techs for the big instrument
>makers to ignore forever.
>
>Cheers,
>Bob
Give Sencore some credit...
Tom
bob parker
>Give Sencore some credit...
>
>Tom
Hi Tom,
"I give credit to Sencore!!!". I hadn't forgotten Sencore, but I
was sort-of thinking more in terms of smallish cheapish instruments
rather than the Sencore all-singing/dancing large expensive devices,
if you follow my meaning. :)
Tom MacIntyre
Yes...there's no question that the small ESR meters have put a huge
dent in the amount of time wasted in many types of repairs. When we
got our Sencore LC-102, ESR was the single biggest difference; that
and the fact that the small hand-held cap value meters we were using
would assign the normal value or close to a lot of bad caps that the
Sencore caught...a LARGE percentage of them had ESR problems.
Tom
Colin
>bo...@nlc.net.au (bob parker) wrote:
>>tmac...@ns.sympatico.ca (Tom MacIntyre) wrote:
>>>Give Sencore some credit...
>> "I give credit to Sencore!!!". I hadn't forgotten Sencore, but I
>>was sort-of thinking more in terms of smallish cheapish instruments
>>rather than the Sencore all-singing/dancing large expensive devices,
>>if you follow my meaning. :)
>>Cheers,
>>Bob
>dent in the amount of time wasted in many types of repairs. When we
>got our Sencore LC-102, ESR was the single biggest difference; that
>and the fact that the small hand-held cap value meters we were using
>would assign the normal value or close to a lot of bad caps that the
>Sencore caught...a LARGE percentage of them had ESR problems.
>Tom
Regards
Colin.
Tom MacIntyre
I don't remember the specifics, but I think some types use AC and some
time a DC charge cycle. I'll have to check the Sencore manual for the
Theory of Operation when I get to work today...my ability to forget
these things is amazing...
Tom
Wild Bill
hi.. i guess they determined that people wouldn't spend that amount of
money on a pocket sized tester.. heh.
cheers
WB
....................
bob parker <bo...@nlc.net.au> wrote in article
<37c6a09d...@news.nlc.net.au>...
> tmac...@ns.sympatico.ca (Tom MacIntyre) wrote:
>
> >Give Sencore some credit...
> >
> >Tom
>
> Hi Tom,
> "I give credit to Sencore!!!". I hadn't forgotten Sencore, but I
> was sort-of thinking more in terms of smallish cheapish instruments
> rather than the Sencore all-singing/dancing large expensive devices,
> if you follow my meaning. :)
>
> Cheers,
> Bob
>
Wild Bill
hi.. i believe the capacitor "testers" that only provide an indication of
the cap's value are using a comparison to an internal (capacitance
reference) value. They typically use an A-D converter/disply driver such as
the ICL 7106.
These are generally available as low cost instruments, and don't have any
means of actually testing a cap's functional/working parameters.
These comparator-type checkers will normally indicate the cap's value
(based upon the internal reference), and the reading is rarely an
indication of the condition of the cap.
Sometimes this type of checker will indicate a bad electrolytic cap, if
there is excessive cap leakage, by giving a reading that is lower than the
cap's marked value.. because the capacitor has begun to break down
internally.
cheers
WB
...................
Colin <cm...@usa.net> wrote in article
MCCET
electronic repair business ....
On Thu, 26 Aug 1999 16:44:57 +0100, "Raditecnica de Miguel Ricardo"
<radit...@mail.telepac.pt> wrote:
>Hi
>
>
>It is known that an ESR meter is a time saving instrument to check bad caps.
>Why big manufaturers like Fluke, Tektronix,.... don't have a multimeter
>with a "built in" esr meter ?
>Doesn't worth it ?
>
>
>Miguel
>
>--
>radit...@mail.telepac.pt
>
>