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The Sentry Xpress 4.0 micro processor is manufactured by the

Orton Ceramic Foundation and displays the CE mark.

Hr./Min.

When Lit

HIGHER

°C

°F

When Off
When Lit

START/

STOP

LOWER

Program

Review

Run

M I C R O P R O C E S S O R

TM

SENTRY

Xpress

4.0

Enter

Program

Skip Seg.

Add Hold

Change Temp.

T/C Offset

Alarm

Delay

Review

1

START/STOP Key

Starts and stops a firing.

Press after each

programming step. It works like the

Enter key on a computer.

Down Arrow Key

From

press

. The program

you have selected will ap-

pear one step at a time.

When

appears,

press

. Page 4

From

press

.

Enter delay time. Press

. Page 4

During firing, press

. The program you

entered will appear one

step at a time. Page 4

Indicator

Lights

Temperature Display

Tempera-

ture display is in °F.

Temperature display is in °C.
See page 13 for instructions

on selecting °F and °C.

Time Display

: Sepa-

rates hours from minutes. Ex-

ample: Display shown above

is 1 hour and 30 minutes.

°C Display Dot

Cone Fire/Ramp-Hold Version

°F

°C

Sentry Xpress

Digital Temperature Controller

IM-222/8-07

Light is

on during pro-

gramming.

Light is

on during pro-

gram review.

Light

blinks during firing.

Up Arrow Key

From

press

. Press

to select Cone-Fire or

Ramp-Hold. Pages 6, 8

During a

Ramp-Hold firing, press the

.

will appear. Press

. The current segment

ramp or hold number will ap-

pear. To skip, press

again. Page 10

During a

Ramp-Hold firing, press

repeatedly until

ap-

pears. Press

. Each time

you press the

, the

hold time for the current seg-

ment will increase by 5 minutes.

Then press

.

Page 10

During a Ramp-Hold firing,

press

repeatedly until

appears. Press

.

Use the arrow keys to change

the target temperature for the

current segment. Then press

. Page 10

During a fir-

ing, press

repeatedly

until

appears. Press

. Use the arrow keys to

change the alarm temperature.

Press

. To silence the

alarm, press any key. Page 10

At the

display,

press

.

will ap-

pear. Use arrow keys to adjust

the controller to fire hotter or

cooler. Press

to return to

. Page 13

*These features are new with the Sentry Xpress 4.0. If your controller does

not have these features, it is an earlier controller.

Summary of Contents for Sentry Xpress 4.0

Page 1: ...ne Fire Ramp Hold Version F C Sentry Xpress Digital Temperature Controller IM 222 8 07 Light is on during pro gramming Light is on during pro gram review Light blinks during firing Up Arrow Key From p...

Page 2: ...ilure 12 PF 3 Power Failure 12 tC Thermocouple Failure 12 tCL Thermocouple Lag 13 tCr Thermocouple Reversed 13 Thermocouple Offset 13 Selecting F or C Display 13 Display Messages 14 Cone Fire Schedule...

Page 3: ...ause inaccu rate readings I A 1 8 diameter thermocouple should extend into the firing chamber 5 8 I A diameter thermocouple should extend into the fir ing chamber 1 or more I Keep shelves posts and wa...

Page 4: ...ng and decide to keep the previous program Instead of completing the new program wait a minute and let the con troller return to A Rapid Way to Scroll Numbers During programming hold an arrow key down...

Page 5: ...s two firing modes Cone Fire and Ramp Hold Cone Fire Mode see below Cone Fire mode fires the ware to a pyrometric cone number using the Orton cone tables on page 17 This mode is for ceramics pottery s...

Page 6: ...I Adjust the Thermocouple Offset See page 13 I Customizethefiring in Ramp Hold Seethenextpage Cone Fire Hold Cone Fire Hold heat soaks the ware at the cone temper ature at the end of the firing Witho...

Page 7: ...he controller can fire up to 8 segments per firing One segment is often all that is needed though After the controller has finished firing the last segment it will turn off power to the elements Note...

Page 8: ...ed 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 segme...

Page 9: ...old 1 500 277 1450 788 00 00 2 100 55 700 371 00 00 The first segment is the heating segment The second one is the cooling segment The controller does not use mi nus numbers for cooling Just enter a l...

Page 10: ...he normal kiln temperaturewill ap pear To silence the alarm when it sounds press any key Note If you do not want to use the alarm set the alarm temperature to 32 F 0 C This setting will turn off the a...

Page 11: ...f wax residue that was left in the mold For this reason we recommendthatyou periodicallyfire the kiln to 1500 F 815 C as follows Open the vent cover s or leave the door ajar Fire the kiln empty to 150...

Page 12: ...y the time the power came back on The kiln will not resume firing To return to the dis play press any key tC Thermocouple Failure The thermocouple failed during the display See the paperclip test unde...

Page 13: ...fter rate temperature hold etc will appear With shown in the display press the key will appear Press the arrow keys to change the controller temperature Press the key to return to the display To fire...

Page 14: ...f 1799 F 999 C at the prompt in Ramp Hold mode A fast way to do this is to press the key once from will appear page 8 Hold time of a segment shown in hours and minutes Example 2 hours and 15 min utes...

Page 15: ...egment 3 Segment 4 Cone Rate 1 Temp 1 Rate 2 Temp 2 Rate 3 Temp 3 Rate 4 Temp 4 010 324 1022 153 1112 180 1549 108 1657 09 324 1022 153 1112 180 1580 108 1688 08 324 1022 153 1112 180 1620 108 1728 07...

Page 16: ...ium Fire Cones C Segment 1 Segment 2 Segment 3 Segment 4 Cone Rate 1 Temp 1 Rate 2 Temp 2 Rate 3 Temp 3 Rate 4 Temp 4 010 180 550 85 600 100 843 60 903 09 180 550 85 600 100 860 60 920 08 180 550 85 6...

Page 17: ...336 White 10 2284 2345 2381 Pink Rate of temperature increase during last 90 120 minutes of firing Tables by courtesy of the Edward Orton Jr Ceramic Foundation C Cone Self Supporting Cones Pre Fire Nu...

Page 18: ...wer the relays Perform the Controller Power Input Test left column If your controller passes the Input Test perform the Controller Power Output Test Controller Power Output Test Is the controller send...

Page 19: ...ding the controller board faceplate to the switch box Lift faceplate out of box and let the board hang on the outside of the box with the back of the board fac ing you Disconnect both wire plugs from...

Page 20: ...thecenterwillappear Cone Fire Keys to Press Display Not Down Arrow Select COnE Last cone fired Select cone number Sample cone Select speed Sample speed Enter Hold Time Or hold time The kiln is now fir...

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