[TechAssist] Re: A question for ESR meter users
- From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 16 Oct 2001 21:50:58 -0700
Hi Jeff,
It is true that the Dick Smith can easily measure
DC resistance. As long as you are checking a
regular resistor or something like that. I believe
the limit is around 50 ohms for the DS ESR.
It is designed to measure AC resistance and
when testing a device that has no inductance
(coils and transformers have inductance, of
course) it gives you a very accurate reading
in ohms - if you zero the meter first.
Another good use is comparing the inductance
of coils or transformer windings (for those of you
that don't have a meter with that function). It
will not actually measure inductance in uH,
but will give you a high reading that is very
meaningful.
Bil
----- Original Message -----
From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, October 16, 2001 8:07 PM
Subject: [TechAssist] Re: A question for ESR meter users
>
> Barry,
> I was under the impression, checking a charged cap with
the capanalyser can
> blow the tester.
> With Dick Smith ESR meter, you do not run that risk.
> Every shorted cap, with the DS ESR meter shows 0.
> I zero the meter before each use and it works great.
> Most bad caps read excessively high/
>
> Jeff www.9-11-2001tragedy.com
> Help those affected by the NY/PA tragedy:
> The Red Cross needs is mobilizing a national blood drive
and needs your
> help. Please call 800-GIVE LIFE, to find out where in your
area you can
> donate blood.
> FAX 1-413-280-0677
> Intrepid Video & Electronics
> Harrisburg, PA 17111
> 717-909-8844
> www.intrepid-video.com www.tech-repair.net
www.thetoolcaddy.com
>
>
> ----- Original Message -----
> From: "Barry Appleby" <burintv@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, October 16, 2001 10:14 PM
> Subject: [TechAssist] Re: A question for ESR meter users
>
>
> >
> > [esr meters]. I have been
fooled by a shorted
> cap
> > when using the dick smith but never when using the
capanalyzer 88 . It
> > discharges the cap and checks for short before it checks
esr . It has a
> DCR
> > ohms adjust to tell how many ohms the shorted cap has .
I don't fancy it's
> > flashing leds but have learned to live with it .
> > Barry Appleby .
> >
> >
> > >From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> > >Reply-To: techassist@xxxxxxxxxxxxx
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Subject: [TechAssist] Re: A question for ESR meter
users
> > >Date: Tue, 16 Oct 2001 16:27:47 -0400
> > >
> > >
> > >Duh......the DC through me off.
> > >
> > >Jeff www.9-11-2001tragedy.com
> > >Help those affected by the NY/PA tragedy:
> > >The Red Cross needs is mobilizing a national blood
drive and needs your
> > >help. Please call 800-GIVE LIFE, to find out where in
your area you can
> > >donate blood.
> > >FAX 1-413-280-0677
> > >Intrepid Video & Electronics
> > >Harrisburg, PA 17111
> > >717-909-8844
> > >www.intrepid-video.com www.tech-repair.net
www.thetoolcaddy.com
> > >
> > >
> > >----- Original Message -----
> > >From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> > >To: <techassist@xxxxxxxxxxxxx>
> > >Sent: Tuesday, October 16, 2001 11:21 AM
> > >Subject: [TechAssist] Re: A question for ESR meter
users
> > >
> > >
> > > >
> > > > Duh.........try an ohm meter.
> > > > Jim Myers
> > > > jr.myers@xxxxxxxxxxx
> > > > ----- Original Message -----
> > > > From: "Jeff Dougherty" <jeff@xxxxxxxxxxxxxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Monday, October 15, 2001 10:52 PM
> > > > Subject: [TechAssist] Re: A question for ESR meter
users
> > > >
> > > >
> > > > >
> > > > > DC-resistance is a new one.
> > > > > Can you explain how you test for this, Jim?
> > > > > Thank you.
> > > > >
> > > > > Jeff www.9-11-2001tragedy.com
> > > > > Help those affected by the NY/PA tragedy:
> > > > > The Red Cross needs is mobilizing a national blood
drive and needs
> > >your
> > > > > help. Please call 800-GIVE LIFE, to find out where
in your area you
> > >can
> > > > > donate blood.
> > > > > FAX 1-413-280-0677
> > > > > Intrepid Video & Electronics
> > > > > Harrisburg, PA 17111
> > > > > 717-909-8844
> > > > > www.intrepid-video.com www.tech-repair.net
www.thetoolcaddy.com
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > Sent: Monday, October 15, 2001 4:37 PM
> > > > > Subject: [TechAssist] Re: A question for ESR meter
users
> > > > >
> > > > >
> > > > > >
> > > > > > An ESR meter does not check capacitance, you'll
find that a lot of
> > > > > > capacitors that have a high esr reading will
check good on a
> > >capacitance
> > > > > > tester. Also look out for a shorted, dc
resistance, cap. ESR meter
> > >may
> > > > > show
> > > > > > it as good. If a cap checks good for ESR, dc
resistance and
> > >capacitance
> > > > it
> > > > > > is probably good, if it fails any of the three
test it is bad. If
> it
> > > > > passes
> > > > > > all three test and replacement fixes a problem
it is still bad.
> > > > > > Jim Myers
> > > > > > jr.myers@xxxxxxxxxxx
> > > > > > ----- Original Message -----
> > > > > > From: <Tvcr9@xxxxxxx>
> > > > > > To: <techassist@xxxxxxxxxxxxx>
> > > > > > Sent: Monday, October 15, 2001 3:08 PM
> > > > > > Subject: [TechAssist] A question for ESR meter
users
> > > > > >
> > > > > >
> > > > > > >
> > > > > > > I have found that the ESR meter can not
detect a leaky or lower
> > >than
> > > > > > normal
> > > > > > > capacitors, i.e. it will show a good ESR
reading but if the
> > >capacitor
> > > > > is
> > > > > > > checked with a regular capacity meter it will
be low in value
> > > > > > > Has anyone experienced this also ?
> > > > > > >
> > > > > > > Bill
> > > > > > >
> > > > > > >
> > > > > > > Help make your TechAssist online repair tips
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