The Kiln Gods on mon 27 jul 98
Hi,
Most potters use type K thermocouples. They typically last 1 or 2 years &
are inaccurate for the last few firings of their life.
Type S thermocouples (platinum/rhodium) are alot more accurate & can last
the life of the kiln. They cost roughly six times more & are worth it.
A kiln full of ware that was overfired because of a faulty, type K
thermocouple can be worth as much as the kiln itself, or more. Again a type
S thermocouple is worth the investment.
Not all controllers are capable of using a type S thermocouple. You may
want to ask about this before you buy a controller.
Chris @
Euclid's Kilns and Elements
1-800-296-5456
Web Site: http://www.euclids.com
E-Mail: mail@euclids.com
Stephen Mills on tue 28 jul 98
To add to this: in the UK what you call type "S" is known as type "R".
Pyrometers over here are usually labeled for types K or R. I agree with
Chris, if you are firing consistantly over 1200oC you're far better of
with S (R).
(I still prefer cones)
Steve
Bath
UK
In message , The Kiln Gods writes
>Hi,
>Most potters use type K thermocouples. They typically last 1 or 2 years &
>are inaccurate for the last few firings of their life.
>Type S thermocouples (platinum/rhodium) are alot more accurate & can last
>the life of the kiln. They cost roughly six times more & are worth it.
>A kiln full of ware that was overfired because of a faulty, type K
>thermocouple can be worth as much as the kiln itself, or more. Again a type
>S thermocouple is worth the investment.
>Not all controllers are capable of using a type S thermocouple. You may
>want to ask about this before you buy a controller.
>Chris @
> Euclid's Kilns and Elements
> 1-800-296-5456
>Web Site: http://www.euclids.com
>E-Mail: mail@euclids.com
>
--
Steve Mills
Bath
UK
home e-mail: stevemills@mudslinger.demon.co.uk
work e-mail: stevemills@bathpotters.demon.co.uk
own website: http://www.mudslinger.demon.co.uk
BPS website: http://www.bathpotters.demon.co.uk
Cameron Harman on wed 29 jul 98
----------------------------Original message----------------------------
Type R and type S are different thermocouples and are not
interchangeable. both are international standards. many years ago
a high temperature thermocouple was made from platinum in the
first leg and 87% platinum plus 13% rhodium in the second leg.
Years later it was found that if the second leg were only 10%
rhodium it would be less expensive and more stable.
You will find both type R and type S thermocouples all over the
world including the UK. Newer facilities tend to use type S, but
some people got started on R and have continued to use it in all
their systems. The difference it makes is mainly with the
equipment it is connected to. If a controller is calibrated for R
and you use S the readings will be inaccurate.
In many cases with electronic controllers you an reset the
controller for the correct thermocouple. On older equipment it
requires more effort.
--
**********************************************************
Cameron G. Harman, Jr. 215-245-4040 fax 215-638-1812
e-mail kilns@kilnman.com
Ceramic Services, Inc 1060 Park Ave. Bensalem, PA 19020
see our web site at http://www.kilnman.com
THE place for total kiln and drier support
**********************************************************
Nils Lou on wed 29 jul 98
----------------------------Original message----------------------------
There is a distinction between type S and type R actually and one is not
known for the other. Type S is: Platinum/Plat.10% Rhodium. Type R is
Platinum/Plat.13% Rhodium. Each will generate a specific emf (voltage) at
specific temps. Voltage temperature charts for each are not
interchangeable. NL
On Tue, 28 Jul 1998, Stephen Mills wrote:
> To add to this: in the UK what you call type "S" is known as type "R".
> Pyrometers over here are usually labeled for types K or R. I agree with
> Chris, if you are firing consistantly over 1200oC you're far better of
> with S (R).
>
> (I still prefer cones)
>
> Steve
> Bath
> UK
>
>
> In message , The Kiln Gods writes
> >Hi,
> >Most potters use type K thermocouples. They typically last 1 or 2 years &
> >are inaccurate for the last few firings of their life.
> >Type S thermocouples (platinum/rhodium) are alot more accurate & can last
> >the life of the kiln. They cost roughly six times more & are worth it.
> >A kiln full of ware that was overfired because of a faulty, type K
> >thermocouple can be worth as much as the kiln itself, or more. Again a type
> >S thermocouple is worth the investment.
> >Not all controllers are capable of using a type S thermocouple. You may
> >want to ask about this before you buy a controller.
> >Chris @
> > Euclid's Kilns and Elements
> > 1-800-296-5456
> >Web Site: http://www.euclids.com
> >E-Mail: mail@euclids.com
> >
>
> --
> Steve Mills
> Bath
> UK
> home e-mail: stevemills@mudslinger.demon.co.uk
> work e-mail: stevemills@bathpotters.demon.co.uk
> own website: http://www.mudslinger.demon.co.uk
> BPS website: http://www.bathpotters.demon.co.uk
>
The Kiln Gods on thu 30 jul 98
Hi everyone,
I have received alot of personal e-mail & calls regarding the type R/S
thermocouples.
The three main questions were 1. How much ? & 2. Can I use one in my kiln
? 3. What is the difference between type S & type R ?
Answers:
1. We have type S thermocouples for under $100.00 US
2. Not all type K thermocouples can be replaced with type R/S. Check your
controller manual, call the manufacturer or call me, I`d be glad to help.
3. Type S thermocouples have 10% rhodium & 90% platinum. Type R
thermocouples have 13% rhodium & 87% platinum. Today, the type S is more
popular.
I would be interested in hearing from the type S users. They are quite
common in Europe & alot of potters there do use them. In North America it
seems that they haven`t "caught on".
Feel free to call our 800#
Chris @
Euclid's Kilns and Elements
1-800-296-5456
Web Site: http://www.euclids.com
E-Mail: mail@euclids.com
Euclids Kilns & Elements on tue 17 oct 00
Hello Chuck -
We carry a variety of sizes of type S thermocouples here. If you =
would like to give us a call, we can quote you a price on the size you =
need.
Regards,
Shannon O'Brien
Euclid Kilns & Euclid's Elements
1-800-296-5456
www.euclids.com
mail@euclids.com
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