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FAQ/Answer

My temperature display shows the temperature rising with a stair step pattern. Is that normal?

In theory, the heating ramps of a digital controller are linear. A rate of 300 degrees per hour will raise the temperature 300 degrees in one hour, or 5 degrees per minute. But instead of showing a perfectly linear rise in temperature, the display window will show the "stair step" that you describe. It has no effect on firing results, however.

The stair step pattern is due to relays cycling the heating elements on and off to control the heating rate. The stair step effect is most noticeable at low temperatures.



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