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FrogBlog — Thermocouple

Hunting for a Dead Short in a Kiln

Ask Arnold Howard Kiln Services Kiln Academy Kiln Dead Short Kiln Oven Kiln Safety Kiln Technicians Paragon A-24B Paragon Kilns Thermocouple

Hunting for a Dead Short in a Kiln

This post was written by Arnold Howard, a former employee at Paragon Industries who is now an independent kiln technician at Howard Kiln Services.  The owner of a Paragon A-24B called to tell me he saw sparks flash inside the switch box on his kiln, and the circuit breaker tripped. He could see the flash through the ventilation louvers on the side of the box. “It made a loud noise that scared the hell out of me,” he said. “It happened when I turned the bottom switch to high.”   “Your kiln has a dead short,” I told him. A dead...

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Ask Arnold!

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Ask Arnold!

Arnold Howard, a former employee at Paragon Industries, is now an independent kiln technician at Howard Kiln Services. For those who don't know him... Arnold started at Paragon in 1977 and worked there for 42 years! Repairing kilns and helping people is Arnold's passion! He is a wealth of knowledge and we welcome his insight! To start things off, we thought we would ask him a few of our most common customer questions... Q. Why would someone choose mercury relays over solid state relays? Is there an advantage to one over the other?  A. Mercury relays are extremely reliable. They...

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*NEW* Paragon High Speed Knife Making Ovens

3-Zone Temperature Control Ceramic fiber firing chamber Ceramic Fiber Kiln Guillotine Kiln Academy Kiln Safety Paragon Kilns Paragon KM-18T Pro 3 Zone Paragon KM-36T Pro 3 Zone Smart Touch Controller Solid State Relays Thermocouple

*NEW* Paragon High Speed Knife Making Ovens

Paragon has just introduced two new knife making furnaces... the KM-18T Pro 3 Zone and KM-36T Pro 3 Zone! These two heat treating furnaces are fully stocked with all the great Paragon features including 3-zone temperature control, solid state relays, and a digital Sentinel smart touch controller. Both the KM-18T Pro 3 Zone and KM-36T Pro 3 Zone are insulated with 2 1/2” ceramic fiber and have the thermocouple wire inside the case for protection from the harsh environment of the typical bladesmith shop. Additionally, because of the ceramic fiber chamber, these ovens have a slightly larger interior space than the...

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The Importance of Spare Parts

An Ohm Meter Ceramic Insulators Electrical Tape Element Pins Evenheat Kilns Evenheat Kilns & Ovens Ground Connectors Jen-Ken Kilns Kiln Academy Kiln Equipment Kiln Relays Kiln Repair Directory Kiln Repairs Kiln Spare Parts Kilns Olympic Kilns Paragon Kilns Screwdrivers Thermocouple

The Importance of Spare Parts

This is one of those stories that you don't believe... until it happens to you!  A few years ago, we had a visiting instructor with a full class of students teaching at our studio when the kiln just decided it wanted to be a rebel. There was a tiny waft of smoke, and then a error signal from the controller. Part of me wanted to freak out and run around the room with my arms waving while screaming expletives at the top of my lungs as this was the only kiln we had that was large enough to fire the...

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How do I test for accurate temperatures in my kiln?

Evenheat Kilns & Ovens Jen-Ken Kilns Kiln Academy Olympic Kilns Paragon Kilns Thermocouple

How do I test for accurate temperatures in my kiln?

In case you don’t know, a thermocouple is the nubby, sticky-outie thing inside your kiln that takes the temperature and reports it to the controller. This is a picture of what your thermocouple looks like inside your kiln. I had a great conversation about this with Jim Simmons, Production Manager at Evenheat Kilns. He said, “Most manufacturers tell customers that a variance of +/- 20F degrees is an acceptable target to stay within the temperature range.” But in my experience, most of us usually can adjust within about +/- 50F degrees and still be able to accommodate the changes.  ...

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