Sentry Industries Complete Guide to Paragon Kiln Error Codes and Sentry Xpress 4.0 Features

(pages 7, 8) These are Ramp-Hold programs stored in memory.

etc. (Rate) (page 8) This appears in Ramp-Hold programming for each segment. 1, 2, etc. are segment numbers. Enter the rate of temper- ature change for that segment. Rate is figured in de- grees of temperature change per hour. Example:

A temperature rise of 100° in two hours = 50° rate. A temperature drop of 200° in one hour = 200° rate.

(page 6) These are preset firing rates, or speeds, in Sin- gle-Speed mode.

(Skip Step) (page 8) This message appears

when you press the key during a Ramp-Hold firing. You can skip out of a segment into the next segment.

The firing was stopped by pressing

.

The "Ready to Start" message appears after

programming a firing. Press to begin firing.

Thermocouple Offset (press the ) and De-

lay (press the ) are accessed from the message.

Thermocouple Offset (Page 12). Adjust the controller to fire hotter or cooler.

Error Messages

bAdP / Bad Programming

The kiln will not fire because a) the Ramp-Hold pro- gram just entered has a rate of 0000 in segment 1, or b) the target temperature in Single-Speed or segment 1 of Ramp-Hold is lower than the current temperature.

EtH / Electronics Too Hot

The circuit board temperature is above 176°F / 80°C.

Press any key to return to .

To lower the board temperature, use a fan to blow air across the kiln switch box into the louvers. (But do not blow air into the kiln’s peepholes.) If you have more than one kiln in the room, place them farther apart. Never allow the firing room temperature to exceed 110°F / 43°C. (Measure room temperature three feet away from the kiln.)

FAIL / Thermocouple Failure

The thermocouple, or temperature sensor, failed during firing. Causes:

■Defective thermocouple or disconnected/loose wires

■Defective controller

■Electrical noise

Thermocouple Paperclip Test

Check the thermocouple wire connections. (See your kiln instruction manual.) If connections are tight, perform this test:

UNPLUG the kiln or disconnect the power. Re- move the controller. Remove the two thermocouple wires from the back of the controller.

Cut a thin paperclip in half. Insert a U-shaped paperclip piece, or other piece of thin wire, where you removed the thermocouple wires.

Plug in the kiln. If the controller displays room tem- perature, replace the thermocouple. If it shows , return the controller for repair or

replacement.

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