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The Type K thermocouple is standard on most kilns.) SFTY Safety This is the maximum temperature the Sentry is programmed for your kiln. It can be altered only at the factory. SKIP Skip Segment If you press the Skip Segment key during a firing, SKIP will appear. If you press the key again, the firing will skip to the next segment. SOFT Software Version This option gives the version of software loaded into your Sentry. STRT Firing Started. This appears when firing begins. Do not be concerned if it takes a moment for the relays to turn on. The Sentry is processing data. TC Thermocouple Type Choose between Types K, S or R thermocouple. It is important to select the correct type or the controller will not read temperature accurately. TCOS Thermocouple Offset Calibrate the controller’s temperature. This compensates for temperature drift, or aging, of a thermocouple. TC2-- Thermocouple Thermocouple missing or wire disconnected. TEDE Temperature Deviation The Sentry includes error messages to warn you that the kiln is not maintaining the programmed temperature. The sensitivity of the error messages is based on a temperature entered in the TEDE option. USER User Program In Ramp-Hold programming, the USER prompt is asking you where you want to place the program in memory. The Sentry has four spaces in memory: 1, 2, 3, 4. Keep a record, on paper, of the programs in memory. 9 SAFETY RULES The warranty on your WW Electric Burnout Furnace and the WW Computerized Programmer does not cover damage from overfiring, regardless of the circumstances. It is the operator's responsibility to make sure that the furnace turns off at the end of the firing. Follow the safety rules below in addition to the safety rules for your furnace. .. UNPLUG THE FURNACE WHEN NOT IN USE. .. DO NOT LEAVE THE FURNACE UNATTENDED NEAR END OF FIRING. .. WEAR FIRING SAFETY GLASSES WHEN LOOKING INTO PEEPHOLE OF A HOT FURNACE. .. DO NOT TOUCH HOT SIDES OF FURNACE. .. INSTALL YOUR FURNACE AT LEAST 12 INCHES FROM ANY WALL, EQUIPMENT OR COMBUSTIBLE SURFACE. .. DO NOT OPEN FURNACE DOOR UNTIL FURNACE HAS COOLED AND ALL SWITCHES ARE OFF. .. FIRE ONLY IN A WELL-VENTILATED, COVERED AND PROTECTED AREA AWAY FROM FLAMMABLE MATERIALS. KEEP CORDSET AWAY FROM HOT SIDES OF FURNACE. .. " DANGEROUS VOLTAGE " ! - DO NOT TOUCH HEATING ELEMENTS WITH ANYTHING. DISCONNECT FURNACE BEFORE SERVICING. .. NOT FOR HOUSEHOLD USE. .. KEEP UNSUPERVISED CHILDREN AWAY. TIME AND TEMPERATURE DISPLAY During time display, a center display period appears. During temperature display, the period disappears. The center display period separates hours from minutes (EXAMPLE -1 hour and 30 minutes displays 01.30). NOTE THIS PECULIARITY: You can enter up to 99 hours and 99 minutes, displayed as 99.99. In this example, .99 would seem to be tenths and hundredths of hours, yet .99 is 99 minutes. HOW TO SELECT ° °°°°F OR ° °°°°C If the controller is in ° °°°°C mode, a lighted dot appears in the lower right side of the display. No dot will appear if the unit is in the ° °°°°F mode. To change from ° °°°°F to ° °°°°C, turn controller on, press ENTER ( * ) until the display shows [ IdLE ]. Then press (° °°°°F/° °°°°C) "0" button repeatedly until [ CHG.. ] appears on the display. Press ENTER ( * ) and [° °°°°F ] appears in the display. Press the #1 button to change to [° °°°°C]. Press Enter to save the change. To change from ° °°°°C to ° °°°°F, repeat the above procedure. 10 PERMANENT PROGRAM NO. 1 [ - EL -] ( USED FOR WAX ELIMINATION ONLY ) The wax elimination program will heat at the rate of 1250 ° °°°°F (750 ° °°°°C) per hour for 15 minutes or until the temperature reaches 300 ° °°°°F (150 ° °°°°C). NOTE: AS MUCH AS 15 ° °°°°F (10 ° °°°°C) OVERRUN MAY OCCUR. Then the program will hold 300 ° °°°°F (150 ° °°°°C) for one hour and turn itself off. You may stop the program at any time by pressing the “STOP” (#) key. A tray for trapping the wax must be used to protect the floor or hearth plate of the furnace. The tray must be removed before the wax begins to burn or smoke. Once the wax is eliminated, the furnace can be turned off; otherwise it will run for approximately 1. hours and then shut off automatically. During wax elimination, the sprue hole must be down. When the regular burnout cycle is resumed, the flasks should be placed in the furnace with the sprue hole up. ENTER PROGRAM NO. 1 [ - EL -] AS FOLLOWS: ACTION DISPLAY 1) Apply power [ ldLE ] alternating with current furnace temperature 2) Press “1” [PROG] alternating with [EL] 3) Press “ENTER” [ ldLE ] alternating with current furnace temperature. Program saved. 4) Press “ENTER” [STRT] The furnace starts firing cycle. WAX ELIMINATION Most injection waxes will become liquid at 200 ° °°°°F (93 ° °°°°C) or less. However, some pattern waxes and plastics melt as high as 350 ° °°°°F (176 ° °°°°C) and plastics burn-out at up to 500 ° °°°°F (260 ° °°°°C) and produce odor and fumes. Obviously the plastic patterns must be handled differently than injection wax. Hi...

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