Sentry Sentry 2.0 Operations Instructions

1See pages 24 - 25 for instructions on upgrading your DTC100, 600, 800 or 1000 series board to the Sentry.Program Review (pg 9)From IdLE or duringfiri

Temperature OvershootWhen a kiln is heated too fast, it may overshoot the tar-get temperature, especially in small kilns at lower tempera-tures. To av

Stained glass,18", 2 layers, full fuse. The fusing tempera-ture will vary depending on the brand of glass, the batch,and even on the color. Vent

Present StatusPress during a firing to display thesegment that is firing. One of the follow-ing messages will appear:I, the segment number, and rate:

Skip SegmentSkip Segment works only during fir-ing. It jumps the firing from the currentsegment to the next one.Note: Skip Segment does not skip from

middle section, and the bottom light power to the bot-tomsection. (Two-zone kilns: Ignore the center light.)Note: Though power outputlights are on, me

brating controllers. Thus, it remains a reliable calibrationstandard.Note: The temperature at which you calibrated yourdigital pyrometer should be the

using the Reset (RST) option (page 18), use the TCoption to select the correct thermocouple. Resetchanges the thermocouple selection to Type-S.From ,p

kiln’s electrical data plate. It is usually on the side of theswitch box. The dataplate lists the watts, amps, and volts. Ifwatts are not listed, mult

tory. The controller will not fire hotter than that tempera-ture. Press .Press to return to .ELEC / ElectronicsTemperatureCheck the Circuit Board Temp

Chapter 7ErrorMessagesIError messages are accompanied by an alarm.INon-interrupting messages do not stop the firing. Ter-minating error messages do.IF

2 Ramp-HoldIntroductionThank you for purchasing the Sentry micro processor, our most advanced generation of digi-tal temperature controllers. As you r

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

TCL / Thermocouple LagThe heating rate is slower than 9°F / 5°C per hour andthe kiln temperature is more than 100°F / 56°C away fromthe programmed tem

22 Ramp-HoldAppendix A: Display MessagesAbort 5The firing was stopped.Alarm 8, 10, 11, 12ALAR appears either when you are entering an alarm tem-peratu

23Kilowatts 12, 16The controller can figure the cost to fire your kiln if you supplyyour kiln’s wattage. (See the data plate on the switch box.)Divide

Unplug the kiln or disconnect the power. Removethe 4 screws holding the controller faceplate to theswitch box. Gently remove the old controller.Discon

25

26 Ramp-HoldAppendix C: 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

27IndexAAbRT, 5, 22Add Time, 1, 11ALAR, 22alarm, 1, 6, 8, 9, 10, 11, 12, 16, 17AOP, 1, 8, 10, 16, 18, 22Auxiliary Output, 16, 22Bbaby monitor, 6, 12bA

28 Ramp-HoldAppendix D:Sentry Ramp-Hold Shorthand InstructionsAfter you press the keys in the left column, the message to the right will appear.KEYS T

3ContentsGetting Started. . . . . . . . 5Room Temperatureand Humidity . . . . . . . . . . . . . . . . 5Thunder Storms andPower Surges . . . . . . . .

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

Chapter 1Getting StartedRoom Temperatureand HumidityIt is okay to store the Sentry at sub-zerotemperatures. But before operating, raise theroom temper

If you are using a portable, separate controller, you willneed to install the thermocouple onto the kiln. See the sep-arate TnF 2 installation instruc

Chapter 2ProgrammingInstructionsBefore using your Sentry, read all of thischapter. Have your controller in front ofyou so that you can try out the key

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

RepeatFiringsTo repeat the last firing,press from .The kiln will begin firing.Make sure you are repeat-ing the correct firing by us-ing Program Review