Sentry Sentry 2.0 Instructions d'exploitation

1Sentry 2.0Digital Temperature ControllerCone-Fire / Ramp-Hold Operating InstructionsSee pages 34 - 35 for instructions on upgrading your DTC100, 600,

Chapter 3Cone-FireCone-Fire mode is based on pyrometriccones. It is not designed for heat treating,glass fusing and enameling. For thesefirings, see “

Firing time in each segment is approximate and dependson the age of elements, voltage, size of load, and the firingspeed you have chosen.CAUTION: Cone

High Fire Cones 1 -10This is the firing range for porcelain and stoneware.These bodies fire nearly to vitrification and can shrink up to16%. Water, ca

Hold (HOLd)Cone-Fire Hold heat-soaks the ware at thecone temper-ature at the end of the firing. Without Hold, the kiln shutsoff after it reaches the c

Chapter 4Ramp-HoldBefore using Ramp-Hold, read all of thischapter. Have your controller in front ofyou so that you can try out the keys as youread.The

Each time you store another program, select the nextavailable number, such as 2, at the prompt. Select-ing a number for a new program over-writes (era

Note: In Program Review, a heating rate of 9999 isdisplayed as . When a kiln is heated at fullpower, it may overshoot the target temperature, espe-cia

Using the programming instructions on page 15, enterthis firing schedule. Then use Program Review to check foraccuracy.USER = 1RA1 = 250°F1=750Hd 1 =

Glass Slumping Firing ScheduleRate Temp.Segment °F / °C °F / °C Hold1 250 / 138 750 / 398 00.002 900 / 500 1250 / 676 00.303 9999 / 9999 1050 / 565 00

IWhenthe Sentry sends a signal tothe relays, all three lights ap-pear.IThe top light indicates power to thetop section of the kiln. The bottom light i

2 Cone-Fire / Ramp-HoldIntroductionThank you for purchasing the Sentry micro processor, our most advancedgeneration ofdigital temperature controllers.

First, program a Cone-Fire.After programming a Cone-Fire, will ap-pear. From , press until ap-pears.Press . Use the or key to scroll throughthis selec

The cone bent too far: Use anegative Cone Offset for a coolerfiring, such as -10 (°F).Note: Do not be overly con-cerned with achieving an exact 6o’clo

Thermocouple Offset Settings°F Setting °C Setting ResultC 0 C 0 No adjustmentH 1-45 H 1-25 Kiln will fire hotterC 1-45 C 1-25 Kiln will fire coolerT

pre-20A software: Select or —whicheverappears.)From ,press repeatedly untilor appears.Press . Use the and keys to selector .After selecting one of the

Id / Computer IDEnter an ID Number for Connection to a ComputerThis feature is for assigning an identification number,from 1 to15, tothe controller. I

Note: Program Lock does not save a Delay setting.While a program is locked, youcan entera new Delay.From ,press repeatedly untilappears.Press . (locke

Chapter 7Error MessagesIError messages are accompanied by an alarm.INon-interrupting messages do not stop thefiring. Terminating error messages do.IFT

Terminating ErrorMessagesand error messagesturn off the kiln and flash the following:ITotal firing time in hours and minutesIThe kiln shutoff temperat

TCdE / Uneven Multiple-ZoneTemperaturesThe zones of a multiple-zone kiln are firing unevenly.Causes:IA burned out element or relayIThe thermocouples a

Frequently AskedQuestionsDoes the increase in Ramp-Hold temperatureassume a one hour time period?Yes. When you program the rate, you are telling theco

3ContentsBasic Pointers . . . . . . . . . . 5Room Temperature and Humidity. . . 5Thunder Storms and Power Surges . 5Time and Temperature Display. . .

30 Cone-Fire / Ramp-HoldAppendix A: Display MessagesAbort 5The firing was stopped.Alarm 8, 11, 15, 29ALAR appears either when you are entering an alar

31Kilowatts 8, 23The controller can figure the cost to fire your kiln if you supply yourkiln’s wattage. (See the data plate on the switch box.) Divide

32 Cone-Fire / Ramp-HoldAppendix B: Preset StandardCone-Fire Schedules - °FThese are the firing schedules programmed in Cone-Fire mode. To customize a

33Appendix B: Preset StandardCone-Fire Schedules - °CThese are the firing schedules programmed in Cone-Fire mode. To customize a schedule, write down

34 Cone-Fire / Ramp-HoldUnplug the kiln or disconnect the power. Removethe 4 screws holding the controller faceplate to theswitch box. Gently remove t

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36 Cone-Fire / Ramp-HoldAppendix D: Temperature EquivalentsFor Orton Self-Supporting Pyrometric Cones°FCone Self-Supporting Cones Pre-FireNumber Color

37Appendix E: User Program RecordsrA1 1 Hd1 .rA2 2 Hd2 .rA3 3 Hd3 .rA4 4 Hd4 .rA5 5 Hd5 .rA6 6 Hd6 .rA7 7 Hd7 .rA8 8 Hd8 .rA9 9 Hd9 .rA10 10 Hd10 .rA1

38 Cone-Fire / Ramp-HoldIndexAAbRT, 5Add Time, 6ALAR, 11, 15Alarm, 6, 8, 15, 17, 22, 24, 29AOP, 1, 13, 15 - 16, 22, 25Auxiliary Output, 22Bbaby monito

39Sentry Ramp-Hold Shorthand InstructionsAfter you press the keys in the left column, the message to the right will appear. (See also page 15.)KEYS TO

SafetyThe warranty on your Sentry controller does not coverdamage from overfiring, regardless of the circumstances. Itis the operator’s responsibility

40 Cone-Fire / Ramp-HoldSentry Cone-Fire Shorthand ProgrammingAfter you press the key(s) in the left column, the message to the right will appear. Pre

Chapter 1Basic PointersTwo Firing ModesThe Sentry fires in two modes:I, based onpyrometric cones (page10). Quickly program a firing by selecting a con

Note: After the kilnfires to completion, disconnectthepower. It is okay to turn off the power to the controllerwhile the kiln cools to room temperatur

3/DelayFireThis delays the start ofthe firing by the amount oftime entered. Use it to fit afiring into your schedule orto take advantage of lowerelect

7 / Temperature AlarmThe alarm sounds and flashes when the kilnreaches the alarm temperature that you enter. Use thealarm to alert you to—ILower the l

Note: Do not be concerned if the actual cone shut-offtemperature does not match the Cone Table. The tem-perature of a cone varies with firing speed. T