Leslie Ihde on tue 28 apr 98
I've been using my pyrometer by putting it's nose in the top peep hole.
I've since read a book which says not to do this, but to drill a hole in
the side of the kiln and mount it there. Does anyone know why this is?
Would there be any difference if you filled the majority of the peep hole
with fiber and then inserted the pyrometer?
Thanks
Leslie
Vestal NY
Arturo M DeVitalis on wed 29 apr 98
Cant answer your question but I strongly recommend you purchase a ceramic
tube, 3/4 inch diameter, and after you drill a whole through the IFB and
insert the tube into the kiln, THEN put your thermocouple inside the
tube...it will last lots longer!
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Louis Katz on wed 29 apr 98
Dear Leslie,
Putting your pyrometer in the top peephole will certainly work. If it is
encased in a metal sheath putting it in and removing it when done might be the
best means of prolonging its life.
If it is not encased in metal mounting it permanently through a hole the same
size as the ceramic bead insulator is probably a better bet. You could close
off the peephole if this is better for you than drilling a new one.
Your meter should be mounted (assuming it is made for mounting) away from the
heat and the radiated heat. If your meter is portable you should build a place
to set it. You want your meter at a stable ambient temperature. It won't help
things if it is exposed to the heat of the kiln.
More on pyrometers
Thermocouples, meters, extension wires and connectors may be purchased
directly from Omega http://www.omega.com/litreq/book1.html#temp
Thermocouples 9" long = a three inch lead without connectors or insulators 8
gauge thickness are about $10. Unless you already have 8 gauge insulators buy
them with insulators
Leslie Ihde wrote:
>
> ----------------------------Original message----------------------------
> I've been using my pyrometer by putting it's nose in the top peep hole.
> I've since read a book which says not to do this, but to drill a hole in
> the side of the kiln and mount it there. Does anyone know why this is?
> Would there be any difference if you filled the majority of the peep hole
> with fiber and then inserted the pyrometer?
> Thanks
> Leslie
> Vestal NY
BobWicks on thu 30 apr 98
In a message dated 98-04-28 07:55:20 EDT, you write:
<< Leslie >>
Leslie:
This is what I have used sucessfully. Take a piece of soft brick and shape it
to fit the peep hole with a rasp, then drill a hole in the center of it for
the probe. It works great for me.
Bob
Vince Pitelka on fri 1 may 98
>Leslie:
>This is what I have used sucessfully. Take a piece of soft brick and shape it
>to fit the peep hole with a rasp, then drill a hole in the center of it for
>the probe. It works great for me.
>Bob
This is a picky little point, but I think Bob will agree. The first time I
made such a plug to hold a pyrometer thermocouple, I did as Bob suggested,
and when I drilled the hole thorugh my nicely formed spyhole plug it
shattered in my hand. Instead, drill the hole through the piece of
softbrick, and then shape it into a spyhole plug.
- Vince
Vince Pitelka - vpitelka@DeKalb.net
Home 615/597-5376, work 615/597-6801, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
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