Sentry Industries Sentry Xpress 4.0 manual Advanced Features, Skip Segment, Add Hold Time

Skip Segment Example

Ramp-Hold Programming Instructions

Note: You have up to 8 segments available in Ramp-Hold. If you don’t need all 8, zero out the unused segments. (See step 6 below.)

From , press .

Press the	key (not the	).
	and	are

Ramp-Hold programs. When the one you

want appears, press		. (Ignore	-
	.)

will appear. Enter firing rate (tempera- ture change per hour) for segment 1. (1° = slowest rate. 1799°F/999°C = full power.)

Then press .

or and the target temperature from the last firing will appear. Use the arrow keys

to change the temperature. Then press .

and the hold time from the last firing will appear (e.g. 1 hour 10 minutes = 01.10). Use the arrow keys to change the hold time.

Then press . (No hold = 00.00) Continue entering values for the segments

needed. When			appears for the next seg-
ment that you		don’t	need, select	. Then
press	. This will zero out the remaining

segments. (Example: You need only 1 seg-

ment. When	appears, enter		.)
will appear. Press		to begin firing.

will appear and the Run indicator light will begin blinking. The kiln is now firing.

To stop a firing before completion, press

. will appear, alternating with total firing time and kiln temperature.

Note: Do not be concerned if your kiln makes a clicking sound during firing. Kilns use relays to power the elements. The relays click each time their electrical contacts come together.

Note: The kiln’s actual firing rate may be less than the rate you programmed, depending on the kiln model, available voltage, and density of the load you are firing.

When the kiln fires to completion, it will beep for 30 seconds. The display will show the following:

■Firing time

■Present temperature

■ = Fired to completion

To return to , press .

Advanced

Features

Skip Segment works only in Ramp-Hold programs. Add Hold Time, Temperature Edit, and Alarm work in both Single-Speed and Ramp-Hold firings.

Skip Segment

Skip Segment jumps the firing from the current segment to the next one.

During a Ramp-Hold firing, press the .

will appear.

Press . The current segment ramp or hold number will appear.

Press again. (If you change your mind and don’t want to skip that segment, don’t press

after appears. The firing will continue in the same segment and the temperature will appear af- ter one minute.)

Skip Segment skips to the ramp of the next segment from either a ramp or hold of the current segment. (Skip Seg- ment does nothing during the final segment. To end the fi-

nal segment, press .)

You have pro- grammed a target temperature of 1425°F for glass fusing, followed by a segment for controlled cooling. Watching the glass through the peephole, you notice that the glass edges have rounded nicely at 1315°. Use Skip Segment to end the firing segment and to begin the one for slow cooling.

Note: Make a note of the temperature at which the glass fused. Program that temperature for the next fir- ing of that type of glass.

Add Hold Time

Add Hold Time adds 5 minutes to a hold. It is designed for ceramists who watch witness cones and for glass artists who watch the glass near the end of firing.

During a firing, press the		repeatedly un-
til	appears.

Press . The hold time for the current seg- ment will appear.

Press the . Each time you press the , the hold time will increase by 5 minutes.

Press. The normal temperaturewill appear.

Note: Add Hold Time will add 5 minutes to a hold even if no hold had been programmed.

8 Single-Speed/Ramp-Hold