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additional information on kiln question

updated wed 22 aug 12

 

Gregg Lindsley on fri 17 aug 12


what i meant to mention, but didn't, is that my other elec. kiln, which is
of an higher amperage, (the one in question is only 43 amps), does not make
the lights go dim. If it was a problem with the main panel, both kilns
would do it. That is why i feel the problem, if there is one, is particular
to this kiln.
the first reply I got today said that they had their kiln do this, and it
ran fine for years. My conundrum stems from the fact that one kiln dims the
lights at the moment of contact, and the other does not. John wrote that
the controller tells the contacts when to close and open. makes sense.
Question is, where are the contacts. I will investigate this question
further with the manufacturer. thanks to all, and I still welcome thoughts,
opinions and facts.

--
Gregg Lindsley
Earth and Fire Pottery
P.O. Box 402
Cobb, Ca., 95426
707-490-7168
www.earthandfirepottery.net
"Tomorrow is just your future yesterday"

Fredrick Paget on sat 18 aug 12


>Gregg --

>I can't recollect the details of your first post, but if the older
>kiln has manual controls, and the newer one has electronic controls,
>then the change ispredictable -- infinite manual controls especially
>give slow changes to power demands (separately-segmented 3 or 4
>position switches give somewhat more rapid changes to demand) but
>none compare with the speed with which demand changes with computer
>programmable
>controllers.
> And, if the new kiln has a single-zone controller, it all comes on
>at once -- an instant demand of the full drain that the kiln pulls.
And often that will cause a brief dimming of lights.

>Steve Slatin -


I think that Steve has got it right, Today I was thinking about the
post replys I sent Gegg privatly and since my test kiln was firing I
went to look at my segmental voltmeter in the house.
I could see that the voltage was cycling about one volt up and down.

That voltmeter is something you can see the segment of 30 volts from
100 volts to 130 volts across the whole face of the meter. It sits on
a desk in my dining room. Pluged in there for years so I can keep an
eye on the voltage we are getting from the power company.
Tonight it is a steady 123.7 volts.

I have a set up where my controller for the large electric kiln is on
the wall andmy old big Cone Art with kiln sitter and 2 infinite
switchs is wired in to it.
I brought out a plug for 120 volts with a fuse of 20 amps so I can
plug in the test kiln and pull the thermocouple out of the larger
kiln and stick it in the test kiln which I then plug into the 120
volt socket on the wall controller and trip the kiln sitter off on
the larger kiln so only the test kin gets juice.

This morning while firing my test kiln it was moving up and down
about one volt. I have not fired the larger 40 amp kiln while
watching the voltmeter but will most likely get a couple of volt
swing when I do. That is not enough to do much to change the CFL's we
are using through out the house to a noticable degree.
Fred Paget
--
Twin Dragon Studio
Mill Valley, CA, USA

Steve Slatin on sat 18 aug 12


Gregg --=3D0A=3DA0=3D0AI can't recollect the details of your first post, bu=
t if t=3D
he older kiln has =3D0Amanual controls, and the newer one has electronic co=
nt=3D
rols, then the =3D0Achange is=3DA0predictable -- infinite manual controls e=
spec=3D
ially give slow=3D0Achanges to power demands (separately-segmented 3 or 4 p=
os=3D
ition=3D0Aswitches give somewhat more rapid changes to demand) but none=3D0=
Acom=3D
pare with the speed with which demand changes with computer=3D0Aprogrammabl=
e =3D
controllers.=3D0A=3DA0=3D0AAnd, if the new kiln has a single-zone controlle=
r, it =3D
all comes on=3D0Aat once -- an instant demand of the full drain that the ki=
ln=3D
pulls.=3D0A=3DA0=3D0AAnd often that will cause a brief dimming of lights.=
=3DA0 =3D0A=3D
=3D0ASteve Slatin -- =3D0A=3D0A=3D0AN48.0886450=3D0AW123.1420482=3D0A=3D0A=
=3D0A____________=3D
____________________=3D0A From: Gregg Lindsley =3D0ATo: =
Clay=3D
art@LSV.CERAMICS.ORG =3D0ASent: Friday, August 17, 2012 8:41 PM=3D0ASubject=
: ad=3D
ditional information on kiln question=3D0A =3D0Awhat i meant to mention, b=
ut d=3D
idn't, is that my other elec. kiln, which is=3D0Aof an higher amperage, (th=
e =3D
one in question is only 43 amps), does not make=3D0Athe lights go dim. If i=
t =3D
was a problem with the main panel, both kilns=3D0Awould do it. That is why =
i =3D
feel the problem, if there is one, is particular=3D0Ato this kiln.=3D0Athe =
firs=3D
t reply I got today said that they had their kiln do this, and it=3D0Aran f=
in=3D
e for years. My conundrum stems from the fact that one kiln dims the=3D0Ali=
gh=3D
ts at the moment of contact, and the other does not. John wrote that=3D0Ath=
e =3D
controller tells the contacts when to close and open. makes sense.=3D0AQues=
ti=3D
on is, where are the contacts. I will investigate this question=3D0Afurther=
w=3D
ith the manufacturer. thanks to all, and I still welcome thoughts,=3D0Aopin=
io=3D
ns and facts.=3D0A=3D0A--=3D0AGregg Lindsley=3D0AEarth and Fire Pottery=3D0=
AP.O. Box =3D
402=3D0ACobb, Ca., 95426=3D0A707-490-7168=3D0Ahttp://www.earthandfirepotter=
y.net/=3D
=3D0A"Tomorrow is just your future yesterday"

Steve Mills on sun 19 aug 12


It occurs to me that perhaps because this is a comparatively old kiln the r=
e=3D
lays are also pretty old fashioned and possibly well worn and may be drawin=
g=3D
an excessive amount of power themselves as well when they are activating t=
h=3D
e elements??? Sort of double whammy=3D20

Just my twopennyworth!

Steve M


Steve Mills
Bath
UK
www.mudslinger.me.uk
Sent from my iPod


On 18 Aug 2012, at 04:41, Gregg Lindsley wrote:

> what i meant to mention, but didn't, is that my other elec. kiln, which i=
s=3D

> of an higher amperage, (the one in question is only 43 amps), does not ma=
k=3D
e
> the lights go dim. If it was a problem with the main panel, both kilns
> would do it. That is why i feel the problem, if there is one, is particul=
a=3D
r
> to this kiln.
> the first reply I got today said that they had their kiln do this, and it
> ran fine for years. My conundrum stems from the fact that one kiln dims t=
h=3D
e
> lights at the moment of contact, and the other does not. John wrote that
> the controller tells the contacts when to close and open. makes sense.
> Question is, where are the contacts. I will investigate this question
> further with the manufacturer. thanks to all, and I still welcome thought=
s=3D
,
> opinions and facts.
>=3D20
> --
> Gregg Lindsley
> Earth and Fire Pottery
> P.O. Box 402
> Cobb, Ca., 95426
> 707-490-7168
> www.earthandfirepottery.net
> "Tomorrow is just your future yesterday"

Arnold Howard on tue 21 aug 12


On 8/17/2012 10:41 PM, Gregg Lindsley wrote:
> what i meant to mention, but didn't, is that my other elec. kiln, which i=
s
> of an higher amperage, (the one in question is only 43 amps), does not ma=
ke
> the lights go dim. If it was a problem with the main panel, both kilns
> would do it.

Gregg, perhaps a bank of lights is wired into the circuit used by the 43
amp kiln. I have seen stranger electrical situations.

Sincerely,

Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com