Sentry Industries Sentry Xpress 4.0 Temperature Over-Shoot, Single-Speed Programming Instructions

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Ramp-Hold programs in memory. Programs are numbered Pro1 - Pro4.

Type of Firing

Suggested Firing Mode

Enameling

Single-Speed

Silver Clay

Single-Speed

Glass Bead Annealing

Ramp-Hold

Glass Fusing

Ramp-Hold

Glass Slumping

Ramp-Hold

Lost Wax

Ramp-Hold

Selecting a Firing Mode

From display, press once.

Press the key several times. You will see the following display messages:

SPd1:

Single-Speed 1 / 200°F/111°C rate per hour

SPd2:

Single-Speed 2 / 500°F/277°C rate per hour

SPd3:

Single-Speed 3 / 1000°F/555°C rate per hour

SPd4:

Single-Speed 4 / 1500°F/833°C rate per hour

SPd5:

Single-Speed 5 / Maximum rate

PrO1:

Ramp-Hold, Program 1

PrO2:

Ramp-Hold, Program 2

PrO3:

Ramp-Hold, Program 3

PrO4:

Ramp-Hold, Program 4

Note: Your controller may have more Ramp-Hold pro- grams than the 4 shown above.

To select a firing mode, see the boxed programming in-

structions on this page and page 8. Or to get back to

pears. , press

several times until

ap-

Temperature Over-Shoot

When a kiln is heated too fast, it may over-shoot the tar- get temperature, especially in small kilns at lower tempera- tures. To avoid this, add an extra segment in a Ramp-Hold program to slow the firing. (See the next section.) The seg- ment with the slower rate should begin approximately 40° - 60° below the target temperature.

Single-Speed Programming Instructions

Note: Single-Speed firing is all you will ever need if you are only going to a temperature and holding.

From , press .

Use the key (not the ) to select a firing rate (temperature rise per hour)

from 1 through 5. (Ignore - .) / (200°F or 111°C)

/ (500°F or 277°C) / (1000°F or 555°C)

/ (1500°F or 833°C) / (Full Power)

Then press .

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

will appear. Press to begin firing.

will appear, the Run indicator light will begin blinking, and the kiln will begin 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 firing speed you select (see step 2 above) is a pre-programmed speed. The kiln’s ac- tual firing speed may be less, depending on the kiln model, available voltage, and density of the load you are firing.

When the kiln fires to completion, the controller will beep for 30 seconds. The display will show the follow- ing:

Firing time

Present temperature

= Fired to completion

To return to , press .

6 Single-Speed/Ramp-Hold

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Contents Sentry Xpress Contents IntroductionGeneral Guidelines SafetyTime and Temperature Display Operation Begins from the IdLE DisplayThunder Storms Power Surges DelayPower Failures Canceling a New ProgramHold Theory OperationRate Two Firing Modes Single-Speed and Ramp-HoldTemperature Over-Shoot Selecting a Firing ModeSingle-Speed Programming Instructions Ramp-Hold Practice Program Ramp-Hold ModeProgramming a Cooling Segment Parts of a SegmentAdd Hold Time Advanced FeaturesSkip Segment Ramp-Hold Programming InstructionsLost Wax Burnout Editing the Target TemperatureAlarm OverviewDisplay Messages Burnout InstructionsEtH / Electronics Too Hot Error MessagesBAdP / Bad Programming Fail / Thermocouple FailurePF 1 / Power Failure FE Error MessagesHtdE / High Temperature Deviation PF 2 / Power FailureSelecting F or C Display Problem Controller display is blank. No heat in kilnController Power Input Test Trouble ShooterProblem Controller display turns on. No heat in kiln Problem Kiln switch box ½ amp fuses keep blowing Kiln Switch Box ½ Amp Fuse Power TestIndex Shorthand Instructions Single-Speed