Programming instructions
2 Single Segment/Ramp-Hold
©2004, by Paragon Industries, L.P. IM-221/10-04
Safety
The warranty on your Sentry Xpress
controller does not cover damage from
overfiring, regardless of the
circumstances. It is the operator’s
responsibility to make sure the kiln turns
off at the proper time.
When the kiln is not in use, disconnect the
power.
Do not leave the kiln unattended, especially
near the expected shut-off time.
Wear firing safety glasses when looking into the
firing chamber of a hot kiln.
Do not touch hot sides of kiln. Keep unsuper
-
vised children away.
Install your kiln at least 12 inches from any wall
or combustible surface.
Do not open lid or door until kiln has cooled and
all switches are off.
Fire only in a well-ventilated, covered and pro-
tected area away from combustible materials.
Keep cordset away from hot sides of kiln or fur-
nace.
DANGEROUS VOLTAGE! Do not touch heat-
ing elements with anything. Disconnect before
servicing.
Contents
General Guidelines . . . . . . . . . . . . . . . . . 3
Time and Temperature Display . . . . . . . . . . . . . . . . . . . 3
Operation Begins from the IdLE Display. . . . . . . . . . . . 3
Thermocouple Inspection . . . . . . . . . . . . . . . . . . . . . . . 3
A Rapid Way to Scroll Numbers . . . . . . . . . . . . . . . . . . 3
Program Review & Repeat Firing . . . . . . . . . . . . . . . . . 3
Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Power Failures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
CPLT Message: Firing Completed . . . . . . . . . . . . . . . . 4
Thunder Storms and Power Surges . . . . . . . . . . . . . . . 4
Theory of Operation . . . . . . . . . . . . . . . . 4
Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Two Firing Modes: Single Segment and Ramp-Hold . . 5
Single Segment Programming Instructions . . . . . . . . . 5
Temperature Over-Shoot. . . . . . . . . . . . . . . . . . . . . . . . 6
Ramp-Hold Mode. . . . . . . . . . . . . . . . . . . 6
Repeat Firings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Programming a Cooling Segment. . . . . . . . . . . . . . . . . 6
A Ramp-Hold Practice Program . . . . . . . . . . . . . . . . . . 7
Skipping a Segment in a Ramp-Hold Program . . . . . . 7
Ramp-Hold Programming Instructions. . . . . . . . . . . . . 7
Lost Wax Burnout . . . . . . . . . . . . . . . . . . 8
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
A Sample Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Burnout Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Error Messages . . . . . . . . . . . . . . . . . . . . 9
BAdP / Bad Programming . . . . . . . . . . . . . . . . . . . . . . . 9
EtH / Electronics Too Hot . . . . . . . . . . . . . . . . . . . . . . . 9
FaIL / Thermocouple Failure . . . . . . . . . . . . . . . . . . . . . 9
TCR / Thermocouple Reversed . . . . . . . . . . . . . . . . . . . 9
FtL / Fired Too Long . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PF 1 / Power Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
PF 2 / Power Failure. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
tC / Thermocouple Failure. . . . . . . . . . . . . . . . . . . . . . . 9
Selecting °F or °C Display . . . . . . . . . . . . 9
Display Messages . . . . . . . . . . . . . . . . . 10
Trouble Shooter. . . . . . . . . . . . . . . . . . . 10
Problem: Controller display is blank. No heat in kiln.. 10
Problem: Controller display turns on. No heat in kiln. 11
Problem: Kiln switch box ½ amp fuses keep blowing.11