RE: [PSES] Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
Yes, Sodium Silicate and Kaolin are specified by the IECEE in CTL-OP 108.

I prefer this attachment only for HALT series, otherwise I prefer
cyanoacrylate for product safety Type tests.

Brian 


From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Brent G DeWitt
Sent: Tuesday, June 16, 2009 3:36 PM
To: 'Ralph McDiarmid'; EMC-PSTC@LISTSERV.IEEE.ORG
Subject: RE: [PSES] Thermocouple welder

So I guess nobody much uses Sodium Silicate and Kaolin as thermocouple
adhesive anymore?
 
Brent (old dinosaur) DeWitt
 
From: Ralph McDiarmid [mailto:ralph.mcdiar...@xantrex.com] 
Sent: Tuesday, June 16, 2009 3:13 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Thermocouple welder
 
I don’t know how one would calibrate a thermocouple, but we use a welding
device cobbled together from carbon rod (from a dry-cell) and a 40Vdc power
supply and an alligator clip.   It takes 10 minutes to setup and couple of per
thermocouple to weld and inspect to ensure there is a little ball of metal at
the end of the two wires and there are no twists.   We might do 30 or 40 in
one sitting and the DIY allows us to make each to a reasonable length.  (at
least 2 metres). Eye protection recommended.
 
To attach, we use plain old super glue and tape the wires in a couple of
places for strain-relief.  It’s a method that has proven successful for us
for many years and the TC can most often be removed without damaging the weld.
 
What I’m not crazy about is placing a piece of Mylar tape between a bare
live part and the TC to electrically isolate one from the other.  Not sure
what thermal conductively the piece of tape provides and what error it might
introduce.  Silpad or similar material is likely a better choice for that
function.
 
Ralph McDiarmid, AScT 
Compliance Engineering Group 
Xantrex Technology Inc. 
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Barker, Neil
Sent: Tuesday, June 16, 2009 12:37 AM
To: peterh...@aol.com; emc-p...@ieee.org
Subject: RE: Thermocouple welder
 
Peter
 
Why bother?
Unless you need really long thermocouples that are not available off the shelf
as pre-welded units, it simply isn't worth the time and trouble. We treat
thermocouples as consumable items. They cost about £5 ($7) each and we just
discard them when broken. The thermocouples come with a Certificate of
Conformity, so there is no need to calibrate them. You can buy an awful lot of
those with the money you would spend on a welder, and then you've got to add
on the cost of the wire and the time to make the weld. With overheads, lab
time costs us about £70 ($100) an hour, so £5 would buy less than 5 minutes.
Do you think you can set up your welder, prepare the wires and make the weld
in less than 5 minutes?
Just my 2p (2c) worth.
 
Neil Barker
Manager
Central Quality
 
e2v
106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, England
Tel: +44 (0)1245 453616
Mobile:   +44 (0)7801 723735
Fax:+44 (0)1245 453571
 www.e2v.com
 
P Consider the environment: do you really need to print this e mail?
 
 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: 16 June 2009 00:47
To: emc-p...@ieee.org
Subject: Thermocouple welder
Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 
 



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RE: [PSES] Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
So I guess nobody much uses Sodium Silicate and Kaolin as thermocouple
adhesive anymore?

 

Brent (old dinosaur) DeWitt

 

From: Ralph McDiarmid [mailto:ralph.mcdiar...@xantrex.com] 
Sent: Tuesday, June 16, 2009 3:13 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] Thermocouple welder

 

I don’t know how one would calibrate a thermocouple, but we use a welding
device cobbled together from carbon rod (from a dry-cell) and a 40Vdc power
supply and an alligator clip.   It takes 10 minutes to setup and couple of per
thermocouple to weld and inspect to ensure there is a little ball of metal at
the end of the two wires and there are no twists.   We might do 30 or 40 in
one sitting and the DIY allows us to make each to a reasonable length.  (at
least 2 metres). Eye protection recommended.

 

To attach, we use plain old super glue and tape the wires in a couple of
places for strain-relief.  It’s a method that has proven successful for us
for many years and the TC can most often be removed without damaging the weld.

 

What I’m not crazy about is placing a piece of Mylar tape between a bare
live part and the TC to electrically isolate one from the other.  Not sure
what thermal conductively the piece of tape provides and what error it might
introduce.  Silpad or similar material is likely a better choice for that
function.

 

Ralph McDiarmid, AScT 
Compliance Engineering Group 
Xantrex Technology Inc. 

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Barker, Neil
Sent: Tuesday, June 16, 2009 12:37 AM
To: peterh...@aol.com; emc-p...@ieee.org
Subject: RE: Thermocouple welder

 

Peter

 

Why bother?

Unless you need really long thermocouples that are not available off the shelf
as pre-welded units, it simply isn't worth the time and trouble. We treat
thermocouples as consumable items. They cost about £5 ($7) each and we just
discard them when broken. The thermocouples come with a Certificate of
Conformity, so there is no need to calibrate them. You can buy an awful lot of
those with the money you would spend on a welder, and then you've got to add
on the cost of the wire and the time to make the weld. With overheads, lab
time costs us about £70 ($100) an hour, so £5 would buy less than 5 minutes.
Do you think you can set up your welder, prepare the wires and make the weld
in less than 5 minutes?

Just my 2p (2c) worth.

 

Neil Barker

Manager

Central Quality

 

e2v

106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, England

Tel: +44 (0)1245 453616

Mobile:   +44 (0)7801 723735

Fax:+44 (0)1245 453571

 www.e2v.com http://www.e2v.com/ 

 

P Consider the environment: do you really need to print this e mail?

 

 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: 16 June 2009 00:47
To: emc-p...@ieee.org
Subject: Thermocouple welder

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 



A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
http://pr.atwola.com/promoclk/10012657
x1221322979x1201367215/aol?redir=http:/
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04439718. Registered address; 106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU,
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RE: Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
I don’t know how one would calibrate a thermocouple, but we use a welding
device cobbled together from carbon rod (from a dry-cell) and a 40Vdc power
supply and an alligator clip.   It takes 10 minutes to setup and couple of per
thermocouple to weld and inspect to ensure there is a little ball of metal at
the end of the two wires and there are no twists.   We might do 30 or 40 in
one sitting and the DIY allows us to make each to a reasonable length.  (at
least 2 metres). Eye protection recommended.

 

To attach, we use plain old super glue and tape the wires in a couple of
places for strain-relief.  It’s a method that has proven successful for us
for many years and the TC can most often be removed without damaging the weld.

 

What I’m not crazy about is placing a piece of Mylar tape between a bare
live part and the TC to electrically isolate one from the other.  Not sure
what thermal conductively the piece of tape provides and what error it might
introduce.  Silpad or similar material is likely a better choice for that
function.

 

Ralph McDiarmid, AScT 
Compliance Engineering Group 
Xantrex Technology Inc. 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Barker, Neil
Sent: Tuesday, June 16, 2009 12:37 AM
To: peterh...@aol.com; emc-p...@ieee.org
Subject: RE: Thermocouple welder

 

Peter

 

Why bother?

Unless you need really long thermocouples that are not available off the shelf
as pre-welded units, it simply isn't worth the time and trouble. We treat
thermocouples as consumable items. They cost about £5 ($7) each and we just
discard them when broken. The thermocouples come with a Certificate of
Conformity, so there is no need to calibrate them. You can buy an awful lot of
those with the money you would spend on a welder, and then you've got to add
on the cost of the wire and the time to make the weld. With overheads, lab
time costs us about £70 ($100) an hour, so £5 would buy less than 5 minutes.
Do you think you can set up your welder, prepare the wires and make the weld
in less than 5 minutes?

Just my 2p (2c) worth.

 

Neil Barker

Manager

Central Quality

 

e2v

106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, England

Tel: +44 (0)1245 453616

Mobile:   +44 (0)7801 723735

Fax:+44 (0)1245 453571

 www.e2v.com http://www.e2v.com/ 

 

P Consider the environment: do you really need to print this e mail?

 

 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: 16 June 2009 00:47
To: emc-p...@ieee.org
Subject: Thermocouple welder

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 



A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
http://pr.atwola.com/promoclk/10012657
x1221322979x1201367215/aol?redir=http:/
www.freecreditreport.com/pm/default.asp
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RE: Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
I used the Omega for many years in a previous job.  We tested air conditioners
and welded 20 – 30 thermocouples a week without problems.  It proved to be a
reliable tool.  However, for the budget minded, there are other options.

DCC HotSpot http://www.dcccorporation.
om/onespec.html?plpver=10origin=comparefilter=0  - $700

Omega TL Weld http://www.omega.com/Heaters/pdf/TL_WELD.pdf  - $1800

Therm-x 258B http://www.therm-x.com/Product.aspx?ProductID=319  - $1300

Burrell Scientific Kup-L-Weld http://www.burrellsci.com/brl02.htm - ???

 

My personal preference is to use long wires with the tip glued in place.  At
the end of a test, I cut off the end and leave it on the test sample.  It
doesn’t take long to weld a new tip onto the thermocouple wires.  I will
throw out the wires only when they get too short, or when they don’t read
room temperature properly when I run a sanity check before starting a test.

 

Ted Eckert

Compliance Engineer

Microsoft Corporation

ted.eck...@microsoft.com

 

The opinions expressed are my own and do not necessarily reflect those of my
employer.

 

 

 

From: Dan Roman [mailto:dan.ro...@dialogic.com] 
Sent: Tuesday, June 16, 2009 6:08 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: Thermocouple welder

 

This is the same welder I use and am very happy with it.  Bought it over 10
years ago and it is still going strong.  Needed to replace the needle nose
pliers used to hold onto the TC wires once (some of the techs here are not
very careful with their welding).  My only complaint about it would be that
the warning buzzer is too loud, but a piece of well placed tape solved that
problem.

 

Dan

 

From: Chris [mailto:cksal...@yahoo.com] 
Sent: Monday, June 15, 2009 10:42 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Thermocouple welder

 

Pete, http://dcccorporation.thomasnet.
om/item/thermocouple-welders/hotspot-i-
i-thermocouple-welders/item-1112?plpver=10origin=comparefilter=0CTypeID=2 

You can try this site. 

This welder is easy to use once you have secured the carbon block.
 
http://dcccorporation.thomasnet.com/ite
/thermocouple-welders/hotspot-i-ii-ther
ocouple-welders/item-1112?plpver=10origin=comparefilter=0CTypeID=2


Christopher


--- On Mon, 6/15/09, peterh...@aol.com peterh...@aol.com wrote:


From: peterh...@aol.com peterh...@aol.com
Subject: Thermocouple welder
To: emc-p...@ieee.org
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Monday, June 15, 2009, 4:47 PM

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 



A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
http://pr.atwola.com/promoclk/10012657
x1221322979x1201367215/aol?redir=http:/
www.freecreditreport.com/pm/default.asp
?sc=668072%26hmpgID=62%26bcd=JunestepsfooterNO62  

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RE: [PSES] Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
This is the same welder I use and am very happy with it.  Bought it over 10
years ago and it is still going strong.  Needed to replace the needle nose
pliers used to hold onto the TC wires once (some of the techs here are not
very careful with their welding).  My only complaint about it would be that
the warning buzzer is too loud, but a piece of well placed tape solved that
problem.

 

Dan

 

From: Chris [mailto:cksal...@yahoo.com] 
Sent: Monday, June 15, 2009 10:42 PM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: [PSES] Thermocouple welder

 

Pete, http://dcccorporation.thomasnet.
om/item/thermocouple-welders/hotspot-i-
i-thermocouple-welders/item-1112?plpver=10origin=comparefilter=0CTypeID=2 

You can try this site. 

This welder is easy to use once you have secured the carbon block.
 
http://dcccorporation.thomasnet.com/ite
/thermocouple-welders/hotspot-i-ii-ther
ocouple-welders/item-1112?plpver=10origin=comparefilter=0CTypeID=2


Christopher


--- On Mon, 6/15/09, peterh...@aol.com peterh...@aol.com wrote:


From: peterh...@aol.com peterh...@aol.com
Subject: Thermocouple welder
To: emc-p...@ieee.org
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: Monday, June 15, 2009, 4:47 PM

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 







A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
http://pr.atwola.com/promoclk/10012657
x1221322979x1201367215/aol?redir=http:/
www.freecreditreport.com/pm/default.asp
?sc=668072%26hmpgID=62%26bcd=JunestepsfooterNO62  

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RE: Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
Not to hijack this thread, but what is the best way to hold a thermocouple in
place and get the best most accurate readings?

Is there a special cement or glue to glue the tip right to what you are trying
to measure?  

We try to secure the thermocouple back from the tip and use thermo paste on
the tip but this is very messy.

 

I’ve seen some labs use plane old super glue to glue the tip down and then
use acetone to soften it up for removal.  

Is this a common practice or is there a better way or some official way to do
this?

 

The Other Brian

 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Ronald R.
Wellman
Sent: Tuesday, June 16, 2009 8:33 AM
To: 'American Idle'; rpick...@rpqconsulting.com
Cc: peterh...@aol.com; emc-p...@ieee.org
Subject: RE: Thermocouple welder

 

You will not get away with twisting and smacking the leads if you are under
IECEE SMT. You have to weld them. Also, my lab uses lots of TCs and we reuse
them so you may have to re-weld them after each use because whatever cement
you use to apply the TCs can very well cause you to rip the end of the TC when
you remove it. 

 

Best regards,

Ron Wellman  

 

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of American Idle
Sent: Monday, June 15, 2009 7:41 PM
To: rpick...@rpqconsulting.com
Cc: peterh...@aol.com; emc-p...@ieee.org
Subject: Re: Thermocouple welder

 

Well... If we're going to MacGuyver it, you can just strip the insulation off
the ends of the two wires, twist the wires together, and smack the joint with
a hammer to create a TC junction.

-Ken A.

On Mon, Jun 15, 2009 at 9:59 PM, Ron Pickard, RPQ rpick...@rpqconsulting.com
wrote:

Hi Pete,

 

On the cheap, a used large value DC capacitor with threaded terminals (easy to
attach wires) along with two different-colored (to observe polarity), cut in
half banana-banana cables should the job nicely, especially if you already
have a DC power supply for charging. Just make sure the cap is safely voltage
rated and polarity observed for the DC supply when charging. Also, common
alligator clips that fit on the banana ends are easily replaceable as welding
takes its toll. Please note that this set up will not produce controlled or
consistent welds, but with a little practice the welds will soon become quite
good.

 

IHTH.

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard

 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: Monday, June 15, 2009 6:47 PM
To: emc-p...@ieee.org
Subject: Thermocouple welder

 

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 



A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
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RE: Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
You will not get away with twisting and smacking the leads if you are under
IECEE SMT. You have to weld them. Also, my lab uses lots of TCs and we reuse
them so you may have to re-weld them after each use because whatever cement
you use to apply the TCs can very well cause you to rip the end of the TC when
you remove it. 

 

Best regards,

Ron Wellman  

 

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of American Idle
Sent: Monday, June 15, 2009 7:41 PM
To: rpick...@rpqconsulting.com
Cc: peterh...@aol.com; emc-p...@ieee.org
Subject: Re: Thermocouple welder

 

Well... If we're going to MacGuyver it, you can just strip the insulation off
the ends of the two wires, twist the wires together, and smack the joint with
a hammer to create a TC junction.

-Ken A.

On Mon, Jun 15, 2009 at 9:59 PM, Ron Pickard, RPQ rpick...@rpqconsulting.com
wrote:

Hi Pete,

 

On the cheap, a used large value DC capacitor with threaded terminals (easy to
attach wires) along with two different-colored (to observe polarity), cut in
half banana-banana cables should the job nicely, especially if you already
have a DC power supply for charging. Just make sure the cap is safely voltage
rated and polarity observed for the DC supply when charging. Also, common
alligator clips that fit on the banana ends are easily replaceable as welding
takes its toll. Please note that this set up will not produce controlled or
consistent welds, but with a little practice the welds will soon become quite
good.

 

IHTH.

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard

 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: Monday, June 15, 2009 6:47 PM
To: emc-p...@ieee.org
Subject: Thermocouple welder

 

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 



A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
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RE: Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
Peter
 
Why bother?
Unless you need really long thermocouples that are not available off the shelf
as pre-welded units, it simply isn't worth the time and trouble. We treat
thermocouples as consumable items. They cost about £5 ($7) each and we just
discard them when broken. The thermocouples come with a Certificate of
Conformity, so there is no need to calibrate them. You can buy an awful lot of
those with the money you would spend on a welder, and then you've got to add
on the cost of the wire and the time to make the weld. With overheads, lab
time costs us about £70 ($100) an hour, so £5 would buy less than 5 minutes.
Do you think you can set up your welder, prepare the wires and make the weld
in less than 5 minutes?
Just my 2p (2c) worth.
 

Neil Barker

Manager

Central Quality

 

e2v

106 Waterhouse Lane, Chelmsford, Essex, CM1 2QU, England

Tel: +44 (0)1245 453616

Mobile:   +44 (0)7801 723735

Fax:+44 (0)1245 453571

 www.e2v.com http://www.e2v.com/ 

 

P Consider the environment: do you really need to print this e mail?

 




From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: 16 June 2009 00:47
To: emc-p...@ieee.org
Subject: Thermocouple welder


Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 



A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
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RE: Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
I've done the twisted together and the hammer smacking method before.  The 
twisting worked the best between the two methods since the one of the metal was 
brittle and cracked easily instead staying attached when smacked the hammer, 
and neither agreed much with the reference.  But one was easy and the other was 
fun.  Being able to claim that the other one was doing highly calibrated 
delicate precision work was fun when asking the bystanders to step back, and 
then swinging the big hammer to smack the twisted joint.

- Bill
Indecision may or may not be the problem.

--- On Mon, 6/15/09, Ron Pickard, RPQ rpick...@rpqconsulting.com wrote:



From: Ron Pickard, RPQ rpick...@rpqconsulting.com
Subject: RE: Thermocouple welder
To: 'American Idle' ibm...@gmail.com
Cc: peterh...@aol.com, emc-p...@ieee.org
Date: Monday, June 15, 2009, 11:12 PM



Hi Ken,

 

Pete did say that he wanted a very inexpensive solution, which is what 
I suggested, topping off at about $15 w/o the DC supply. The hammer idea would 
need some safety glasses, a quality hammer and a hard striking surface, which 
probably would likely exceed the $15 in total if those items are not already on 
hand.

 

Although this is something I would not recommend for TC joints as I 
believe it does not represent a true weld, I have seen TC joints consisting of 
two wires twisted together into a spot of superglue. Does anyone have any 
thoughts on the legitimacy of this method?

 

And, thanks for the comparison to MacGyver. However, he would’ve 
probably used some aluminum foil, paper, rubber bands and a couple of 
paperclips after stripping the wire harness from a junked car in the 
neighborhood (MacGyver’s cost - $0, as always). 

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com 
http://us.mc01g.mail.yahoo.com/mc/compose?to=rpick...@rpqconsulting.com 

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard

 




From: American Idle [mailto:ibm...@gmail.com] 
Sent: Monday, June 15, 2009 9:41 PM
To: rpick...@rpqconsulting.com
Cc: peterh...@aol.com; emc-p...@ieee.org
Subject: Re: Thermocouple welder

 

Well... If we're going to MacGuyver it, you can just strip the 
insulation off the ends of the two wires, twist the wires together, and smack 
the joint with a hammer to create a TC junction.

-Ken A.

On Mon, Jun 15, 2009 at 9:59 PM, Ron Pickard, RPQ 
rpick...@rpqconsulting.com 
http://us.mc01g.mail.yahoo.com/mc/compose?to=rpick...@rpqconsulting.com  
wrote:
Hi Pete,
 
On the cheap, a used large value DC capacitor with threaded terminals 
(easy to attach wires) along with two different-colored (to observe polarity), 
cut in half banana-banana cables should the job nicely, especially if you 
already have a DC power supply for charging. Just make sure the cap is safely 
voltage rated and polarity observed for the DC supply when charging. Also, 
common alligator clips that fit on the banana ends are easily replaceable as 
welding takes its toll. Please note that this set up will not produce 
controlled or consistent welds, but with a little practice the welds will soon 
become quite good.
 

IHTH.

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com 
http://us.mc01g.mail.yahoo.com/mc/compose?to=rpick...@rpqconsulting.com 

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard
 



From: emc-p...@ieee.org 
http://us.mc01g.mail.yahoo.com/mc/compose?to=emc-p...@ieee.org  
[mailto:emc-p...@ieee.org 
http://us.mc01g.mail.yahoo.com/mc/compose?to=emc-p...@ieee.org ] On Behalf Of 
peterh...@aol.com 
http://us.mc01g.mail.yahoo.com/mc/compose?to=peterh...@aol.com 
Sent: Monday, June 15, 2009 6:47 PM
To: emc-p...@ieee.org 
http://us.mc01g.mail.yahoo.com/mc/compose?to=emc-p...@ieee.org 
Subject: Thermocouple welder
 
Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for 
type J and K as I have a small budget. Can anyone help please? I don't mind a 
used or refurbished unit.

Thank you
Pete 
 




A Good Credit Score is 700 or Above. See yours in just 2 easy steps! 
http://pr.atwola.com/promoclk/100126575x1221322979x1201367215/aol?redir=http://www.freecreditreport.com/pm/default.aspx?sc=668072

RE: Thermocouple welder

2009-06-16 Thread emc-p...@ieee.org
Hi Ken,

 

Pete did say that he wanted a very inexpensive solution, which is what I
suggested, topping off at about $15 w/o the DC supply. The hammer idea would
need some safety glasses, a quality hammer and a hard striking surface, which
probably would likely exceed the $15 in total if those items are not already
on hand.

 

Although this is something I would not recommend for TC joints as I believe it
does not represent a true weld, I have seen TC joints consisting of two wires
twisted together into a spot of superglue. Does anyone have any thoughts on
the legitimacy of this method?

 

And, thanks for the comparison to MacGyver. However, he would’ve probably
used some aluminum foil, paper, rubber bands and a couple of paperclips after
stripping the wire harness from a junked car in the neighborhood (MacGyver’s
cost - $0, as always). 

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard

 



From: American Idle [mailto:ibm...@gmail.com] 
Sent: Monday, June 15, 2009 9:41 PM
To: rpick...@rpqconsulting.com
Cc: peterh...@aol.com; emc-p...@ieee.org
Subject: Re: Thermocouple welder

 

Well... If we're going to MacGuyver it, you can just strip the insulation off
the ends of the two wires, twist the wires together, and smack the joint with
a hammer to create a TC junction.

-Ken A.

On Mon, Jun 15, 2009 at 9:59 PM, Ron Pickard, RPQ rpick...@rpqconsulting.com
wrote:

Hi Pete,

 

On the cheap, a used large value DC capacitor with threaded terminals (easy to
attach wires) along with two different-colored (to observe polarity), cut in
half banana-banana cables should the job nicely, especially if you already
have a DC power supply for charging. Just make sure the cap is safely voltage
rated and polarity observed for the DC supply when charging. Also, common
alligator clips that fit on the banana ends are easily replaceable as welding
takes its toll. Please note that this set up will not produce controlled or
consistent welds, but with a little practice the welds will soon become quite
good.

 

IHTH.

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard

 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: Monday, June 15, 2009 6:47 PM
To: emc-p...@ieee.org
Subject: Thermocouple welder

 

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 



A Good Credit Score is 700 or Above. See yours in just 2 easy steps!
http://pr.atwola.com/promoclk/10012657
x1221322979x1201367215/aol?redir=http:/
www.freecreditreport.com/pm/default.asp
?sc=668072%26hmpgID=62%26bcd=JunestepsfooterNO62  

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discussion list. To post a message to the list, send your e-mail to
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For help, send mail to the list administrators:

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Mike Cantwell mcantw...@ieee.org 

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David Heald dhe...@gmail.com 

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This message is from the IEEE Product Safety Engineering Society emc-pstc
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LT;emc-p...@ieee.orgGT;

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Graphics (in well-used formats), large files, etc. can be posted to that URL. 

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For help, send mail to the list administrators:
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David Heald LT;dhe...@gmail.comGT; 

 

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This message is from the IEEE Product Safety Engineering Society emc-pstc
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Graphics (in well-used formats), large files, etc. can be posted to that URL. 

Website: http://www.ieee-pses.org

Thermocouple welder

2009-06-15 Thread emc-p...@ieee.org
Pete, http://dcccorporation.thomasnet.
om/item/thermocouple-welders/hotspot-i-
i-thermocouple-welders/item-1112?plpver=10origin=comparefilter=0CTypeID=2 

You can try this site. 

This welder is easy to use once you have secured the carbon block.
 
http://dcccorporation.thomasnet.com/ite
/thermocouple-welders/hotspot-i-ii-ther
ocouple-welders/item-1112?plpver=10origin=comparefilter=0CTypeID=2


Christopher


--- On Mon, 6/15/09, peterh...@aol.com peterh...@aol.com wrote:



From: peterh...@aol.com peterh...@aol.com
Subject: Thermocouple welder
To: emc-p...@ieee.org
Date: Monday, June 15, 2009, 4:47 PM


Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for 
type J
and K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 




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Re: Thermocouple welder

2009-06-15 Thread emc-p...@ieee.org
Well... If we're going to MacGuyver it, you can just strip the insulation off
the ends of the two wires, twist the wires together, and smack the joint with
a hammer to create a TC junction.

-Ken A.


On Mon, Jun 15, 2009 at 9:59 PM, Ron Pickard, RPQ rpick...@rpqconsulting.com
wrote:


Hi Pete,

 

On the cheap, a used large value DC capacitor with threaded terminals 
(easy
to attach wires) along with two different-colored (to observe polarity), cut
in half banana-banana cables should the job nicely, especially if you already
have a DC power supply for charging. Just make sure the cap is safely voltage
rated and polarity observed for the DC supply when charging. Also, common
alligator clips that fit on the banana ends are easily replaceable as welding
takes its toll. Please note that this set up will not produce controlled or
consistent welds, but with a little practice the welds will soon become quite
good.

 

IHTH.

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard

 





From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: Monday, June 15, 2009 6:47 PM
To: emc-p...@ieee.org
Subject: Thermocouple welder

 

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for 
type J
and K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 





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Re: Thermocouple welder

2009-06-15 Thread emc-p...@ieee.org
I was in the same boat and the thermal engineers at my place of work
recommended the Omega unit:

http://www.omega.com/ppt/pptsc.asp?ref=TL_WELD

It is US$1800 and (they say) easy to use.  I haven't gotten around to ordering
one yet, so I can't give a personal stamp of approval.

Also available with 220V mains input.

-Ken Arenella


On Mon, Jun 15, 2009 at 7:47 PM, peterh...@aol.com wrote:


Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for 
type J
and K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 




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RE: Thermocouple welder

2009-06-15 Thread emc-p...@ieee.org
Hi Pete,

 

On the cheap, a used large value DC capacitor with threaded terminals (easy to
attach wires) along with two different-colored (to observe polarity), cut in
half banana-banana cables should the job nicely, especially if you already
have a DC power supply for charging. Just make sure the cap is safely voltage
rated and polarity observed for the DC supply when charging. Also, common
alligator clips that fit on the banana ends are easily replaceable as welding
takes its toll. Please note that this set up will not produce controlled or
consistent welds, but with a little practice the welds will soon become quite
good.

 

IHTH.

 

Best regards,

 

Ron Pickard

RPQ Consulting

Glendale, AZ 85303

+623.512-3451 tel, +623.848-9033 fax

rpick...@rpqconsulting.com

www.rpqconsulting.com http://www.rpqconsulting.com/ 

www.linkedin.com/in/RonPickard

 



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of
peterh...@aol.com
Sent: Monday, June 15, 2009 6:47 PM
To: emc-p...@ieee.org
Subject: Thermocouple welder

 

Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 

 



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Thermocouple welder

2009-06-15 Thread emc-p...@ieee.org
Hello friends,

I am looking to purchase a very inexpensive thermocouple welder for type J and
K as I have a small budget. Can anyone help please? I don't mind a used or
refurbished unit.

Thank you
Pete 



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RE: THERMOCOUPLE WELDER

2008-07-22 Thread Haynes, Tim (SELEX GALILEO, UK)
Hi,

For historic interest.

Way back in the early 1970's I was employed by a company that made
thermocouples. The smallest was 0.5mm diameter and was sheathed in
stainless steel.
The actual thermocouple wires were insulated from the sheath and
themselves by magnesium oxide. We also designed, built and operated a
capacitor discharge welder (CDW) to make the thermocouples.

We would start with the raw cable on a reel and cut to length. We would
then (using a microscope to view what we were doing) clean the area
around the thermocouple wires, removing the MgO to expose sufficient to
weld and the wires pushed together. The other end of the thermocouple
wires were connected to the return of the CDW and then the capacitors
were charged to the correct value. The welding torch was aligned with
the thermocouple wires and argon gas was started to form an inert shield
around the weld area. The discharge was executed and the weld inspected
for quality and to make sure that the weld is inside the sheath.

The final stage was to back-fill the sheath with MgO and fit a stainless
steel cap over the (now insulated) thermocouple junction. The CDW was
used to weld the cap in place. The cold end was terminated with flexible
tails and encapsulated in a water-tight seal. These were used in
nuclear power stations.

The surprising thing to me was how little your hands would shake when
working under the microscope !

The name of the company was BICC Pyrotenax.

Regards
Tim




Tim Haynes A1N21

Electromagnetic Engineering Specialist

SELEX Sensors and Airborne Systems 

300 Capability Green

Luton LU1 3PG

( Tel  : +44 (0)1582 886239

7 Fax : +44 (0)1582 795863

) Mob: +44 (0)7703 559 310

* E-mail : tim.hay...@selexgalileo.com

P Please consider the environment before printing this email. 

 

There are 10 types of people in the world-those who understand binary
and those who don't. J. Paxman



From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Nick
Williams
Sent: Monday, July 21, 2008 8:47 PM
To: Bolintineanu, Constantin
Cc: emc-p...@ieee.org
Subject: Re: THERMOCOUPLE WELDER

  *** WARNING ***

This mail has originated outside your organization, either from an
external partner or the Global Internet. 
 Keep this in mind if you answer this message. 

It never occurred to me that someone might make a special gadget for
this job - I just use our workshop oxy-acetylene torch!

Nick.


At 15:04 -0400 18/7/08, Bolintineanu, Constantin wrote:
Dear Colleagues,

I would like to kindly ask you in regard to the THERMOCOUPLES WELDERS 
that you are using.
Information regarding the suppliers, and best performances and 
reliability, with not to many headaches are very much appreciated. I 
must admit that what we found is not an approved type...
I would prefer to understand which is the best solution without using 
too many consumables.

Please accept in advance my many thanks for your replies.

Respectfully yours,
Constantin

Constantin Bolintineanu P.Eng.
TYCO SAFETY PRODUCTS CANADA
3301 LANGSTAFF Road, L4K 4L2
CONCORD, ONTARIO, CANADA
e-mail: cbolintine...@tycoint.com
Tel: 905 760 3000 ext 2568
Fax: 905 760 3020


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SELEX Sensors and Airborne Systems Limited
Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS14 
3EL
A company registered in England  Wales.  Company no. 02426132

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Re: THERMOCOUPLE WELDER

2008-07-21 Thread Nick Williams

It never occurred to me that someone might make a special gadget for 
this job - I just use our workshop oxy-acetylene torch!

Nick.


At 15:04 -0400 18/7/08, Bolintineanu, Constantin wrote:
Dear Colleagues,

I would like to kindly ask you in regard to the THERMOCOUPLES WELDERS
that you are using.
Information regarding the suppliers, and best performances and
reliability, with not to many headaches are very much appreciated. I
must admit that what we found is not an approved type...
I would prefer to understand which is the best solution without using
too many consumables.

Please accept in advance my many thanks for your replies.

Respectfully yours,
Constantin

Constantin Bolintineanu P.Eng.
TYCO SAFETY PRODUCTS CANADA
3301 LANGSTAFF Road, L4K 4L2
CONCORD, ONTARIO, CANADA
e-mail: cbolintine...@tycoint.com
Tel: 905 760 3000 ext 2568
Fax: 905 760 3020


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THERMOCOUPLE WELDER

2008-07-18 Thread Bolintineanu, Constantin
Dear Colleagues,

I would like to kindly ask you in regard to the THERMOCOUPLES WELDERS
that you are using.
Information regarding the suppliers, and best performances and
reliability, with not to many headaches are very much appreciated. I
must admit that what we found is not an approved type...
I would prefer to understand which is the best solution without using
too many consumables.

Please accept in advance my many thanks for your replies.

Respectfully yours,
Constantin

Constantin Bolintineanu P.Eng.
TYCO SAFETY PRODUCTS CANADA
3301 LANGSTAFF Road, L4K 4L2
CONCORD, ONTARIO, CANADA
e-mail: cbolintine...@tycoint.com
Tel: 905 760 3000 ext 2568
Fax: 905 760 3020

DISCLAIMER: This e-mail message may contain privileged or confidential
information. If you are not the intended recipient, you may not
disclose, use, disseminate, distribute, copy or rely upon this message
or attachment in any way. If you received this e-mail message in error,
please return the message and its attachments to the sender, and then
please delete from your system without copying or forwarding it or call
TSPC at 905 760 3000 extension 2568 so that the sender's address records
can be corrected.

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RE: THERMOCOUPLE WELDER

2008-07-18 Thread Brian O'Connell
Ask the manager at an accredited test lab for specific
recommendations.

I was not aware that there was an approved type of thermocouple
welder. In any case, have always made my own welders, because I
have never had consistent results with something off the shelf.
They are very easy to make, and you get exactly what you want for
a given type of thermocouple wire and technique.

I recently squashed any requirement to weld in an Argon envelope
when an agency engineer was not able to provide 'better' or more
consistent data using thermocouples welded with a $6k USD shiny,
full of dials, indicators, and lights, welding machine.

Although I do whisper some of the (Klingon) R'uustai ritual while
welding thermocouples...

luck,
Brian 


From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of
Bolintineanu, Constantin
Sent: Friday, July 18, 2008 12:04 PM
To: emc-p...@ieee.org
Subject: THERMOCOUPLE WELDER

Dear Colleagues,

I would like to kindly ask you in regard to the THERMOCOUPLES
WELDERS
that you are using.
Information regarding the suppliers, and best performances and
reliability, with not to many headaches are very much
appreciated. I
must admit that what we found is not an approved type...
I would prefer to understand which is the best solution without
using
too many consumables.

Please accept in advance my many thanks for your replies.

Respectfully yours,
Constantin

Constantin Bolintineanu P.Eng.

-

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RE: thermocouple welder

2002-09-18 Thread richwoods

Perhaps he needs a sign based upon one found in a MIT lab: 
Do not stare into beam with remaining eye

Richard Woods
Sensormatic Electronics
Tyco International


-Original Message-
From: Gonzalez, Kenneth P (Rocky) [mailto:kpgon...@ingr.com]
Sent: Tuesday, September 17, 2002 3:20 PM
To: Doug McKean; Emc-Pstc Post
Subject: RE: thermocouple welder



All,
Do not look at the spark without eye protection.

Rocky
  -)-(-

Kenneth P. Gonzalez (Rocky)
Intergraph Solutions Group
Integrated Products Division
170 Graphics Drive
Madison, Alabama, USA 35758
phone (256) 730-2131
fax  (256)730-2424
kpgon...@ingr.com


-Original Message-
From: Doug McKean [mailto:dmck...@corp.auspex.com]
Sent: Tuesday, September 17, 2002 1:59 PM
To: Emc-Pstc Post
Subject: Re: thermocouple welder



Yes.  Get a good beefy DC power supply.  

Attach both leads of the thermocouple to one of the 
outputs PLUS or MINUS.  Doesn't matter. 

Twist together the leads to be welded. 

Get a piece of lead that's used in drafters pencils. 

Attach this piece of lead to the other output of 
the power supply.  

Turn on the power supply. 

LIGHTLY and QUICKLY touch the twisted leads 
of the thermocouple to the lead a few times.  

Welding will commence. 


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RE: thermocouple welder

2002-09-18 Thread Roman, Dan

Brian,

I use a Hot Spot welder from DCC Corp.  Works quite well and even comes
with green tinted safety glasses (as suggested by an earlier poster).  Here
is a link to a description of it, I think they give company contact info as
well:

http://www.thomasregister.com/olc/dcc/hot2.htm

Dan

-Original Message-
From: Brian McAuliffe [mailto:i...@mcac.ie]
Sent: Tuesday, September 17, 2002 11:14 AM
To: Emc-Pstc Post
Subject: thermocouple welder



any recommendations for a fine-wire thermocouple tip welder ?

Brian


Brian McAuliffe

MCA Compliance Solutions Ltd
Unit 2 Lissane Business Park|Clarecastle|Co.Clare|Ireland

w: www.mcac.ie
e: i...@mcac.ie
t: +353 (0)65 6823452
m: +353 (0)87 2352554

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RE: thermocouple welder

2002-09-17 Thread Gonzalez, Kenneth P (Rocky)

All,
Do not look at the spark without eye protection.

Rocky
  -)-(-

Kenneth P. Gonzalez (Rocky)
Intergraph Solutions Group
Integrated Products Division
170 Graphics Drive
Madison, Alabama, USA 35758
phone (256) 730-2131
fax  (256)730-2424
kpgon...@ingr.com


-Original Message-
From: Doug McKean [mailto:dmck...@corp.auspex.com]
Sent: Tuesday, September 17, 2002 1:59 PM
To: Emc-Pstc Post
Subject: Re: thermocouple welder



Yes.  Get a good beefy DC power supply.  

Attach both leads of the thermocouple to one of the 
outputs PLUS or MINUS.  Doesn't matter. 

Twist together the leads to be welded. 

Get a piece of lead that's used in drafters pencils. 

Attach this piece of lead to the other output of 
the power supply.  

Turn on the power supply. 

LIGHTLY and QUICKLY touch the twisted leads 
of the thermocouple to the lead a few times.  

Welding will commence. 


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RE: thermocouple welder

2002-09-17 Thread Brian O'Connell

If you want an NB to accept your test data, at least one agency engineer has
recommended this model:

http://www.therm-x.com/Product.asp?Param1=258BParam2=5

If you do not have 1300+ USD in your budget, a simple cap-discharge welder
is easy to build, but requires that you do the uncertainty dance, to
comply w/ISO 17025.

Brian

-Original Message-
From: Brian McAuliffe [mailto:i...@mcac.ie]
Sent: Tuesday, September 17, 2002 8:14 AM
To: Emc-Pstc Post
Subject: thermocouple welder



any recommendations for a fine-wire thermocouple tip welder ?

Brian


Brian McAuliffe

MCA Compliance Solutions Ltd
Unit 2 Lissane Business Park|Clarecastle|Co.Clare|Ireland

w: www.mcac.ie
e: i...@mcac.ie
t: +353 (0)65 6823452
m: +353 (0)87 2352554

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Re: thermocouple welder

2002-09-17 Thread Doug McKean

Yes.  Get a good beefy DC power supply.  

Attach both leads of the thermocouple to one of the 
outputs PLUS or MINUS.  Doesn't matter. 

Twist together the leads to be welded. 

Get a piece of lead that's used in drafters pencils. 

Attach this piece of lead to the other output of 
the power supply.  

Turn on the power supply. 

LIGHTLY and QUICKLY touch the twisted leads 
of the thermocouple to the lead a few times.  

Welding will commence. 


---
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thermocouple welder

2002-09-17 Thread Brian McAuliffe

any recommendations for a fine-wire thermocouple tip welder ?

Brian


Brian McAuliffe

MCA Compliance Solutions Ltd
Unit 2 Lissane Business Park|Clarecastle|Co.Clare|Ireland

w: www.mcac.ie
e: i...@mcac.ie
t: +353 (0)65 6823452
m: +353 (0)87 2352554

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