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Safety -- Make sure you are safe! |
2016-06-21, 6:05pm
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hi ho hi ho its off to ..
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Join Date: Oct 27, 2007
Location: Odessa, Ontario, Canada
Posts: 289
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Kiln repair (infinite switch)
I have a Jen Ken AF 1381 that is my overflow kiln when I have filled the Paragon.
The infinite switch has gone on it. I have been using the switch in the high position for about 2 years and using a stand alone controller for programing the kiln.
Can the infinite switch be replaced safely with just an on/off switch ?
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2016-06-22, 6:36am
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Member
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Join Date: Jun 13, 2007
Posts: 43
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If it were my kiln, I would replace the switch with another infinite control of the same type. Using a toggle switch would modify the kiln's design, and the switch might not be rated for the amperage of the kiln.
Sincerely,
Arnold Howard
Paragon Industries, L.P., Mesquite, Texas USA
ahoward@paragonweb.com / www.paragonweb.com
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2016-06-22, 7:49am
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Phill
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Join Date: Mar 21, 2009
Location: Winnebago, MN
Posts: 2,489
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An infinite switch is part of a control circuit that turns the heating element on and off in order to maintain the temperature with in some specific range around the value you want.
A thermostat in the kiln senses the temp and feeds a voltage to the infinite switch which is actually a variable resistor. When the voltage and the resistance of the infinite switch reach a balance point that will turn on ( or turn off ) a relay that allows the heating element to heat up.
Replacing the infinite switch ( a variable resistor ) with an on / off type of switch means the kiln will not have a control system anymore and it will either be always on or always off until you change the position of the switch.
Baby sitting that switch will be both exciting and boring when you use it that way.
The exciting part comes when you forget to turn it off the second time.
Parts are relatively inexpensive.
Insurance will not cover damages to your house when they find out you bypassed this switch.
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2016-06-22, 2:40pm
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hi ho hi ho its off to ..
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Join Date: Oct 27, 2007
Location: Odessa, Ontario, Canada
Posts: 289
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maybe I did not explain it well enough the kiln is plugged into a separate stand alone controller that uses its own thermocouple to monitor the kiln the only thing the infinite switch did was to allow a flow of current to the element as decided by the controller. Any way I talked to the electrical engineer at work and he looked over the schematics and said the infinite control was underrated for its use any way and to get a 15amp rated toggle switch and replace it as it is only there to interrupt the flow from the controller if absolutely needed.
Thank you for your input.
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2016-06-22, 4:44pm
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Phill
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Join Date: Mar 21, 2009
Location: Winnebago, MN
Posts: 2,489
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Aye, well if you have a separate controller you can almost get by with jumpering around the switch with a hard copper wire.
Some sort of switch is the wiser idea but it sounds like you have your bases covered.
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