mel jacobson on wed 21 dec 11
I've looked at online ceramic suppliers, but would like to know if any of
you have a preferred brand of digital pyrometer readout and K-type
thermocouple (sheath or ceramic beads or ?) for a front-loaded downdraft
natural gas kiln used for cone 10 reduction glaze and cone 06-04 stoneware
bisque firing?
Linda Mosley
lmosley.com
from: minnetonka, mn
website: http://www.visi.com/~melpots/
clayart link: http://www.visi.com/~melpots/clayart.html
Arnold Howard on thu 22 dec 11
On 12/21/2011 6:41 PM, Steve Mills wrote:
> I would not use K type; they have a short accurate life, are only accurat=
e to 1150oC anyway, and degrade even faster when not protected by a ceramic=
sheath.
> I use R, S, and N. All sheathed.
Just a reminder: If you change the thermocouple type in your digital
electric kiln, you must also reconfigure the temperature controller and
change the thermocouple lead wires. Otherwise the temperature will be off.
K-type thermocouple wire: yellow, red (brown or yellow outer covering)
S- and R-type wire: black, red (green outer covering)
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com
Dale Sizemore on thu 22 dec 11
I've been using 2 - K type - 12 inches long in a porcelain protection tube
with a Fluke 52 digital pyrometer for many years fired to cone 10-11 with
great accuracy and no problems. I did take the protection tube off once to
use it elsewhere and unfortunately the unprotected thermocouple was fired t=
o
cone 11 causing it to warp and not fit back into the porcelain tube. It did
shorten the life of the thermocouple as it took about 5 years for it to fai=
l
while the other still works like new. I just received two new K type
thermocouples from Axner and will replace them both for the sake of
consistency.
Dale Sizemore
Sizemore Studios
Moreland, GA
-----Original Message-----
From: Clayart [mailto:Clayart@LSV.CERAMICS.ORG] On Behalf Of mel jacobson
Sent: Wednesday, December 21, 2011 12:39 PM
To: Clayart@LSV.CERAMICS.ORG
Subject: pyrometer question from clayarter
I've looked at online ceramic suppliers, but would like to know if any of
you have a preferred brand of digital pyrometer readout and K-type
thermocouple (sheath or ceramic beads or ?) for a front-loaded downdraft
natural gas kiln used for cone 10 reduction glaze and cone 06-04 stoneware
bisque firing?
Linda Mosley
lmosley.com
from: minnetonka, mn
website: http://www.visi.com/~melpots/
clayart link: http://www.visi.com/~melpots/clayart.html
Steve Mills on thu 22 dec 11
I echo Edouard.=3D20
I would not use K type; they have a short accurate life, are only accurate =
t=3D
o 1150oC anyway, and degrade even faster when not protected by a ceramic sh=
e=3D
ath.=3D20
I use R, S, and N. All sheathed.=3D20
Steve M
Steve Mills
Bath
UK
Sent from my iPod
On 21 Dec 2011, at 17:39, mel jacobson wrote:
> I've looked at online ceramic suppliers, but would like to know if any of
> you have a preferred brand of digital pyrometer readout and K-type
> thermocouple (sheath or ceramic beads or ?) for a front-loaded downdraft
> natural gas kiln used for cone 10 reduction glaze and cone 06-04 stonewar=
e=3D
> bisque firing?
>=3D20
> Linda Mosley
> lmosley.com
>=3D20
> from: minnetonka, mn
> website: http://www.visi.com/~melpots/
> clayart link: http://www.visi.com/~melpots/clayart.html
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