Sentry Industries Sentry 2.0 AOP Outlet AOP, Computer ID ID, Temperature Deviation Tede

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AOP Outlet (AOP)

Select Vent Fan or Alarm for the Auxiliary Output The optional “AOP” (Auxiliary Output) is an electrical

receptacle mounted in the kiln’s switch box. This outlet can power a kiln vent or an external alarm, such as a bell. The AOP is a special-order option that might not be on your kiln.

The choices in the AOP option:

■ALAR Alarm: This choice sends power to the AOP re- ceptacle whenever the alarm sounds. (See Alarm, pages 6 & 7.) Plug in a loud bell to alert you, from a distance, that the kiln has reached the alarm temperature.

■NONE None:Use this setting if your kiln does not have the AOP outlet.

■FAN2 Do not use FAN2.

■FAN3 Kiln Vent: This option adds a prompt for fan ( FN ) to each segment in Ramp-Hold (page 13). For Cone-Fire controllers, selecting FAN3 makes the FAN option visible on the options list (page 18).

1From IdLE , press OPTIONS repeatedly until AOP appears.

2Press ENTER. Use the 1and 2keys to select ALAR FAN3 or NONE .

3After selecting one of the above, press ENTER. Press STOP to return to IdLE .

Computer ID (ID)

Enter an ID Number for Connection to a Computer This feature is for assigning an identification number,

from 1 to 15, to the controller. It is used only for hookup to a personal computer and requires an optional kit.

1From IdLE , press OPTIONSrepeatedly until ID appears.

2Press ENTER. Use the 1 and 2 keys to select an ID number from 1 to 15. Press ENTER. Press STOP to return to IdLE .

Temperature Deviation (TEDE)

Adjust Temperature Sensitivity of Error Codes

The ideal temperature of a firing, at any given time, is called the set point. During a ramp, the set point changes at the rate you programmed. During a hold, the set point re- mains steady. The Sentry shows error messages when it can’t maintain the set point. The cushion, or leeway, allowed before an error message flashes is called Temperature Devi- ation. When the temperature is off by more than the Tem- perature Deviation setting, the alarm sounds. Temperature Deviation affects these error messages (see page 22):

FTH Fail to Heat

FTC Fail to Cool

HTDE High Temperature Deviation

LTDE Low Temperature Deviation

To turn these error codes off, enter a Temperature Devi- ation of 0.

CAUTION: The High Temperature Deviation (HTDE) alarm shuts off the kiln to prevent an overfire. Entering a temperature deviation of 0 shuts off this important alarm! Programming a fir- ing at FULL rate (1799°F/999°C or higher rate) will also shut off the deviation alarms for that firing.

1From IdLE , press OPTIONS repeatedly until TEDE appears.

2Press ENTER. Change the deviation temperature. Press ENTER. Press STOP to return to IdLE .

Example: The Fail to Heat code FTH appears during firing, because the kiln could not heat as fast as pro- grammed. The Temperature Deviation TEDE is 60°F. The Fail to Heat code appeared when the temperature was 60°F below the set point.

Maximum Temperature (SFTY)

View the Kiln’s Maximum Operating Temperature From IdLE , press OPTIONS repeatedly until SFTY ap-

pears. Press ENTER. The temperature displayed is the max- imum operating temperature programmed in the Sentry for your kiln. It can be altered only at the factory. Press ENTER. Press STOP to return to IdLE .

Electronics Temperature (ELEC)

Check the Circuit Board Temperature

High temperatures in the switch box can damage the con- troller circuit board, which is rated for 158°F/70°C maxi- mum operating temperature. If necessary, exhaust hot air from the room to lower board temperature.When firing sev- eral kilns, position them at least three feet apart to allow ade- quate air circulation.

From IdLE or while firing, press OPTIONS repeatedly until ELEC appears. Press ENTER. The temperature of the circuit board will appear. Press ENTER. Press STOP to re- turn to IdLE .

Program Lock (LOCK)

Make a Program Tamper-Proof

With Program Lock activated, a stored program cannot be altered or removed from memory. Use Program Lock for re- peat firings that you don’t want to inadvertently change.

Note: Program Lock does not save a Delay setting. While a program is locked, you can enter a new Delay.

1From IdLE , press OPTIONS repeatedly until LOCK appears.

2 Press ENTER. LO (locked) or UN (unlocked) will appear.

3To change the setting, press DELAY 3 times.

4Press ENTER. Press STOP to return to IdLE .

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Contents Standard Options Multiple Zone OptionsIntroduction Contents Safety Room Temperature and HumidityThunder Storms and Power Surges Basic PointersHow to Get IdLE to Display Display LightsFiring Completion Message Repeat FiringsKeys Cone Numbers Skip Segment Enter/StartOptions Key Stop/Back KeyHow to Position Cones on the Shelf Cone-FirePyrometric Witness Cones Firing SchedulesPre-Heat Prht Cone-Fire FeaturesSpeed SPd Mirror Test Cone-Fire ProgrammingHold HOLd When the Kiln Shuts Off Too Soon Slow Cooling CoolFor Kilns with AOP Outlet Wrong Thermocouple TypeRamp-Hold Definition of a SegmentRamp-Hold Programming User Programs UserFiring a Stored User Program RateAOP Fan Segments for Controlled CoolingGlass Fusing Firing Schedule Starting a Firing in a Hot KilnGlass Slumping Firing Schedule Ceramic FiringsMultiple Zone Kilns Options Cone-Fire OptionsCone-Fire Speed Spd Cone Offset OfstThermocouple Offset Tcos General OptionsFan FAN Selecting F or C CHG Thermocouple Type TCTemperature Deviation Tede Maximum Temperature SftyElectronics Temperature Elec AOP Outlet AOPMultiple Zone Options Terminating Error Messages Error MessagesNon-Interrupting Error Messages How the Sentry Handles Power Failures Plog Error CodesTCdE / Uneven Multiple Zone Temperatures TCR / Thermocouple Leads ReversedAppendix a Display Messages Power Failure Diagnostic Test FailureReset SafetyCone Rate 1 Temp Rate 2 Temp Low Fire Cones FSegment Appendix B Preset Standard Cone-Fire Schedules C Low Fire Cones CAppendix C Upgrading Instructions Upgrading the DTC 100, 600, 800 & 1000 to the SentryPage Cone Self-Supporting Cones Pre-Fire Number Color 022010 05 1/2Kiln is now firing. Use Program Review by pressing Appendix ESentry Ramp-Hold Shorthand Instructions Kiln is now firing to the cone you selected Appendix FSentry Cone-Fire Shorthand Programming

Sentry 2.0 specifications

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