AT 100 User Manual
Contents
1. Electrical Fuses At the back of the furnace there are two fuses for the mains connection The specifications of these fuses are printed on their external body In case of discrepancies between these electrical specifications with those applying in your area replace these fuses with proper ones EESE E Technical Specifications of the Furnace Dimensions and Weight Width Y4 mm Depth YV mm Height mm Weight Y kg Furnace Chamber Dimensions Diameter 49 mm Height 1 mm YY VAC Hz Urban power supply in Iran YY VAC Hz Urban power supply in Iran The latest technology and a high precision temperature controller are used so as to provide users of the AT Furnace with optimum results Furnace General Specifications Reduced operation time New production technology Full demonstration of furnace stages Chamber thermal isolation with high quality insulators Spiral Quarts Tube thermal element Thermal sensor Platinum Radium Platinum Curing temperature tolerance plus or minus degree C Y Y F Controllable vacuum pressure at all stages Automatic temperature calibration Software aided vacuum calibration EESE E Safety Tips The Safety Labels on the Furnace Risk of electric shock Dangerous voltage Danger abet Lee Use YY VAC power supply with max 220 VAC 20v tolerance Connect the earth connection of the furnace The heated surface temperature r2. Y1 cm Hg and press ENTER The next parameter is then highlighted on the display and the TEMP indicator light on the right hand side of the digital display as well as the EVACUATION TEMP light on the thermal diagram start blinking Now you can enter the numerical value for the initial vacuum pump operation temperature Note negative pressure shown here is equivalent to a vacuum Note Y Once the negative vacuum pressure inside the chamber has reached the programmed value for example the vacuum pump is automatically turned off If the pump pressure drops it is automatically turned on again to control the vacuum level If you set the vacuum level at Y1 cm HG the pump shall keep running without turning off EESE E NY Enter your desired value for the vacuum pump starting temperature For example enter C Then press ENTER The digital display and the thermal diagram go on to the next parameter and display VENT in terms of temperature If as is the case in this sample program the numerical values of LOW TEMP and EVACUATION TEMP are equal then just as the door is closed and while the program is running the vacuum pump shall automatically start operating to provide the programmed vacuum Enter your desired value for VENT or the vacuum discharge temperature or air entering the thermal chamber You can for example enter 1 Then press ENTER Important Note VENT can be programmed in terms of temperature or time If you
3. the furnace and the heating elements while the furnace is in operation or is turned on A Avoid placing liquid containing vessels on the furnace Never clean the furnace with cleaning agents while it is powered on For cleaning first unplug the mains cable and then use common detergents Seriously avoid keeping the panel surface wet for more than one minute Unauthorized personnel must not be allowed to operate this product In case of such operations Kousha Fan Pars Company shall accept no responsibility regarding the possible consequences After cleaning never power on the product before it is completely dried Important Note In case of problems or malfunction inform only our After Sales Services Unit Never allow unauthorized personnel to repair this product EESE E Troubleshooting AL Temperature exceeding C Turn off the furnace and immediately cal the After Sales Services Unit AL Y Fault in the lift operation Probably there is a problem with the micro switch Check the Up and Down micro switches and adjust or replace is if necessary Alternatively there might be a fault in the lift motor lift components operation AL Y There is no sign of excessive temperatures A Replace the furnace muffle The control elements on the main board are damaged The SSR is damaged AL Faulty vacuum The vacuum openings are blocked The pump has failed If neither of the above is true then the described procedur
4. want vacuum discharge or VENT to take place at maximum temperature or before reaching the maximum temperature as is the case in this sample program VENT will have to be in terms of temperature Such a parameter is called VENT TEMPERATURE If you want VENT to occur during HOLD TIME upon the temperature reaching the HIGH TEMP you must press STEP once This leads to the TIME indicator light turning on the digital display and the VENT light on the thermal diagram to start blinking Now you can program venting in terms of time as a fraction of HOLD TIME Note that programming in terms of time and temperature are mutually exclusive that is if VENT is programmed is in terms of time then it cannot be simultaneously programmed in terms of temperature Once you have programmed VENT the last parameter press ENTER Now the programming process is complete and the thermal diagram again returns to the first parameter LOW TEMP Note Press STEP to check the values entered for the nine parameters Then you can press START to start running your program or you can press PRG NO to exit the set mode Note As soon as you press START the thermal cycle is automatically executed Pressing STOP would halt the program Now you can independently revise and run all the furnace programs Note As mentioned above the information entered in the memory shall not be erased by turning off the system but are permanently retained Display and Revision of Paramet
5. 00 Min Heat Rate 120 C m Vacuum Level 76 CmHg High Temp 1200 Hold Time 100 Min Cool Time 100 Min Evacuation Temp 1200 C Vent Time HOLD TIME Vent Temp LOW TEMP HIGH TEMP EAESE E Programming AT Furnace Programming All the furnace programs have programmable parameters which are individually explained in the section on operating the machine and are essential for obtaining the heating cycle performance diagrams shown on the panel display By selecting the required program number and attributing numerical values to these nine parameters you can program the furnace and save the programs permanently in the computer memory of the system the programs are not erased after the furnace is turned off To learn the furnace programming method use the numerical values given in the following sample program and follow the instructions given below Parameter Value Low Temp 538 C Pre Heat Time 00 10 Heat Rate 56 C Min Vacuum Level 76 Cm Hg High Temp 982 C Hold Time 20 00 Cooling Time 00 10 Evacuation Temp 538 C Vent Time 20 00 Put the main switch on ON position The furnace door opens and the left and right displays show the internal muffle temperature and the word IDLE respectively Y Pressthe PRG NO program number to view the number of the last reviewed or executed program Y Enter your desired program number for example P by using the numerical keys to Now you can either start the exi
6. E E Furnace Installation and Operation Removing the surrounding plastofoams carefully take the furnace out of its box and put it on a flat standard laboratory table There must be a free distance of at least Y cm on all sides of the furnace Warning The table top or its legs must not be made of metal because metallic surfaces increase the risk of electric shock Use a fiber glass or wooden table instead Y PSA 9 EI M wr remain at room temperature for Y minutes before starting operations If the ambient temperature is below C after turning on the furnace allow it to DL Y A Protect the furnace from direct sunlight and direct wind Place the vacuum pump preferably under the table on a leveled horizontal surface Note Check the vacuum pump suction and discharge openings behind the furnace to make sure they are free from foreign objects o Connect the connecting hose to the respective connections on the pump and furnace Push the hose ends to prevent possible leakage Plug in the pump cable into the respective plug at the back of the furnace V f you use a protective transformer at least kW or voltage stabilizer connect the furnace power cable to the mains or alternatively plug it in an independent and safe mains power supply The internal cables and wiring of your laboratory must support a current of A If you cannot establish that the wiring can tolerate A then connect the furna
7. KECE In His Name KEKEE Atho Therm AT Furnace User Manual All Rights Reserved Y KFP Dental EESE E Table of Contents Table OP Se phi aac eee ee eee eee MM MEME DEM EMEN Y Dear CS OE dM mI OIM MM IUD MIN MEDIE EE Product Specifications Dnpaclans NOP OU eA E E E E e UL E PAC eee COMM zu o SV SUC Id ead elo BI RENTE E TT TTE 1 DUSIOIN ONS CUS occi a Due buaduadis ia ia usiedten mma NS tt CINE m III dud UEM 1 BEC Cal SOC CICA LOS spd ETT Tm Y SE ZA ENTIS MER Furnace Installation and Operation cccssssscesessseecesssecescssseecesssssesceseeeceseseeeeceseesescsssuscecesseeeceseeeeeecenasateess 4 Digital Display and Switches Front Panel Displays and their FUNCtIONS ccccccssccscesssceceecsseecesseeceecesseeceecesseeceseseescessaeeeseseseeseseeeeescessateess ES Minie CIE Io Dire SAY NER RETE mmm x DisSitaeraohie DISDI dapes dede atat N n D EDdI MN IDEM M EMEN EE EL TEE E PRONO d T P HR ys PRO EU SWIG ER TT E STEP NC gc gece crane dede enean USENET IUNII MM MM DIDI E edu E PCH TCA WICE S uasa tiens E vauevs onenwt dURuEOMUIUM DI tex NEM DE Hm nS NU IUE E Y ENTER N ucc oder espe bea E cue ires esum GERNE Md mE MEUM UU DEUM NM IUNII NES B CLEAR direi ERREUR B Over Ride V AG AIl Ec Urol a ERREUR m B SORS IIo O
8. ange is between Y and deg C The surface of the lift can damage the objects that lie in its path Safety Precautions during Installation Pay close attention to the warnings printed on labels attached to the product If the safety tips as well as ambient conditions and operating precautions are not adhered to while installing this product certain parts might fail as a result and the whole system might also be damaged In case of fluctuations in electricity or insufficient supply power use a kW transformer Keep inflammable materials away from the furnace Avoid knocking or hitting furnace screen or furnace display In case of observing any smoke unusual smell or irregular sound immediately disconnect the furnace from the mains and contact our Technical Department Avoid using the furnace mains connection jointly with other electrical devices Your furnace has an earth connection for increased safety against electric shock to the operator or damage to the building caused by static electricity If your building has an earth well and the plugs are connected to this well then you can simply establish the earth connection by plugging in the furnace cable In the absence of an earth well be sure to connect a screw on the body of the furnace to a metal water pipe via a coated wire Warning Avoid connecting the earth wire to a gas pipe Important Study the instruction manual completely before operating the furnace EES
9. be programmed and executed The IDLE key can also be used for selecting the AUTO IDLE mode more details can be found on pages 14 To prevent ambient air humidity penetration as well as oxidation and increasing useful life of the muffle this program is used for long durations For longer durations it is better to turn off the furnace while its door is closed NIGHT NIGHT Switch This is a fixed program cannot be changed by the operator Press NIGHT and then START to activate this mode of operation While running this program the furnace door is fully closed the vacuum pump would operate automatically for min without restarting and the furnace temperature would reach Y C To stop this program use the STOP key EAESE E Note In general to increase the useful life of the furnace prevent sudden heating cooling as well as thermal shocks The DRY IDLE and NIGHT programs are used mostly for this purpose CALIB Switch This is used for starting the Calibration program for adjusting the furnace temperature For more information see the section on calibration on Page Y Y C and F Switches These two keys are used for observing the furnace temperature in degrees Centigrade and degrees Fahrenheit respectively The same keys can also be used for converting one temperature scale into the other both during program execution and otherwise START and STOP Switches The START key can be used for starting the main programs a
10. ble while the furnace is idling Press VAC and then START The furnace door closes and the vacuum pump operates for 9 seconds Subsequently venting takes place for Y seconds Then the furnace door is opened Thus vacuum calibration is performed and the furnace is ready for use The above procedure can be followed if the AL fault is observed Note Do not press any key until the calibration process has been completed and the door has been fully opened to avoid any problems during calibration Note Y Remember to run the vacuum calibration program after installation and before operating the furnace for the first time Safety Principles This section involves two sub sections Mechanical safety principles Y Electrical safety principles Mechanical safety principles The lifting mechanism is so designed that it requires no lubrication whatsoever Never apply any lubricants for the lift EESE E n t Never place hot objects such as bases pincers etc on the surface of the furnace Never apply sharp objects for pressing the membrane touch keys The pump is oil less Avoid lubricating it Electrical safety principles The electronic parts of the furnace are sensitive to static electricity Earth the furnace to prevent any possible future damage Do not allow unauthorized personnel to open and repair this product since such acts may cause irreparable damage to the product To avoid additional expense
11. ce directly to the electricity power meter through a Y x Y cable Putthe ON OFF Switch e on the ON position to turn on the furnace The furnace should start and its top door should open The left display shows the temperature inside the furnace and the right display indicates the idling IDLE mode 4 Upon starting the furnace remember to wait Y seconds before operating it This is essential for correct operation of the product EAESE E Displays Switches and their Functions Front Panel Displays and Switches and their Functions so IRAM ne Beco ooo BE Mimic Display This is a diagram which demonstrates through LEDs the current positing of the furnace as well as the current programming and program execution stages and the execution of heating cycles Digital Display Your furnace comes with two multimode right and left digital displays The left display shows the numerical values of 4 parameters heat various times vacuum level error messages and the faults The right display indicates program numbers as well as the Idle Night Calib and Dry modes PRG NO PRG NO Switch This switch is used to select the required program to 43 from among 44 available programs or to execute and change programs Pressing this switch you can select your desired program by typing the number on the keyboard PRG EDIT PRG EDIT Switch This is used for observing or changing parameter valu
12. e must be followed AL Fault in thermocouple operation Check thermocouple connections on the main board Test the thermocouple connections and the furnace chamber Some problem with A D Replace A D AL Faulty solenoid valves A Calibration was probably done while the pump was off The connections hose and pump power cable might have been cut Replace or repair service the solenoid valves EESE E Contact Kousha Fan Pars after Sales Services Tel t AAYY AAYA A 4 AAYY EYA Fax 3AYY AANA o4 Company s Website www kfp dental com After Sales Services Unit Email Service kfp dental com After Sales Services Unit Address No Sepehr St Farahzadi Blvd Shahrak Gharb Tehran
13. es for a specific program Press this button to display the 4 parameters on the screen and then apply the required change or programming Pressing the STEP button you can review the numerical values of the parameters from LOW TEMP to VENT and enter the correct values in their place Upon completion press ENTER to save the implemented changes in the system memory STEP Switch This switch performs two operations EESE E By pressing it several times in quick succession you can observe the following parameters on the left digital display Temperature Y The remaining time of all temporal parameters Y The vacuum level in the heating compartment t The elapsed time in the currently running program By each time of pressing STEP once while using the PRG EDIT for planning or observing parameters you can observe one of the nine parameters and its numerical value Thus through pressing STEP nine times all the parameters can be checked Numerical Keyboard These keys are for entering the required program number or the numerical values in the furnace programs ENTER Switch This is for entering the numerical values of parameters CLEAR Switch This key performs the following Erasing the numbers entered through the numerical keys and returning the display to viewing parameters the reverse of what is done via STEP and ENTER Y Cutting off alarm sounds Y Automatic testing of the furnace top door See Te
14. essaeaeececessaueeeeceseesaeeseeeensatas Ye AUTO IDLES Mode Automatic Idling esee enh nnne nennt tnnt en Y The NIGLIT PIOR sss eerste sans tee DIIS Ori E UIS U RENT EOSPDEI H OR DOR UE cero ohiesst UU ENSE EU MI REM EE MN AID AIME UN SUUS Ti THEORY PTOZ earen rie AEAEE EE AEE EA A AAAA AEEA EEN Y The Allowable Limits of Programmable Furnace Parameters esee nennen xy WS DGG MST dde FI MERE A O A OE E YN Service amp Maintenance OC AMIS 1 E TE OO Emm Yr SATO OY PAC o NITET AEEA AOE A E EAE YY TIS UO WC ise zii MAINE Yt WOU SOOT NS NERO RU EE ES YA elite D e NN E RR TPCHUN x e YN EESE E Dear customer The product you have just purchased has been designed and manufactured in accordance with the latest scientific knowledge and more than two decades of experience in the field of porcelain curing furnaces As an industrial unit Kousha Fan Pars Company follows customer oriented policies and adapts its activities by taking into account your views Please do not hesitate to inform us of your views regarding our products Due to the critical role of porcelain curing furnaces in dentistry they must be designed carefully for precise and speedy operation Through using high quality industrial components and parts in our products we have realized the above conditions Your furnace can be used for vario
15. he furnace door and its base Pressing this key would turn on two lamps and pressing it again would turn off these lamps The maximum illumination time is min DOWN DOWN SWITCH This is used to lower the furnace door to the required height Note The DOWN key doen not operate during the running of the main programs or while the DRY NIGHT and IDLE programs are being executed UP UP Switch This key is used for lifting the furnace door to the required height or for closing this door If you press this key while the main programs are in the PRE HEAT TIME stage where the door is being closed according to the set time then the door is closed again and the program shall start Note The UP key does not operate during the running of the DRY program DRY DRY Switch This program is used in cases where the product has not been used for a week or more The DRY key activates the heating compartment in the muffle To run this program first press DRY and then START To stop the program during execution you can press STOP See the DRY Program for more details IDLE IDLE Switch Use this key to run the IDLE program while the furnace is idling and to maintain furnace temperature at the minimum temperature LOW TEMP Thus would decrease the time required for the furnace to reach its lowest temperature as well as increase the useful life and speed of operation In this program the temperature and vacuum level parameters can
16. his program for safety Press STOP to end the execution of NIGHT DRY Program The AT muffle is made of the best insulating materials which are very light and resistant against absorption of moisture If upon the initial operation of the furnace you observe leakage and vacuum loss run the Dry program Leakage and vacuum loss are caused due to evaporation of moisture collected on the furnace door or inside muffle insulators at Cor above At these temperatures the moisture is evaporated and reduces the vacuum level inside the muffle compartment DRY is a fixed thermal cycle and cannot be changed The values of the 4 parameters have been empirically determined in this program No prosthetic teeth or other objects are placed in the furnace during the running of this program The parameter values considered in DRY are given in the following table Parameter Value Low Temp 538 C Pre Heat Time 00 10 Heat Rate 56 C Min Vacuum Level 76 Cm Hg High Temp 982 C Hold Time 20 00 Cooling Time 00 10 Evacuation Temp 538 C Vent Time 20 00 EESE E The Allowable Limits of Programmable Furnace Parameters The following table shows the numerical values of nine parameters When programming the heat treatment parameters the maximum and minimum allowable values must be observed The system displays an error massage if values other than those given in the table are entered The Door Test Program This program is for test
17. ing the furnace door by the operator For running the program press CLEAR while the furnace is idling Upon observing the word Door on the left display press START to automatically run the program In this mode the furnace opens and closes its door automatically times This program is for troubleshooting the problem designated by AL Y in the table If the door stops at the end or start of its path then the upper or lower micro switches might be the reason for the malfunction Otherwise the lift motor might be defective EESE E Service amp Maintenance Calibration Calibration is the exact adjustment of the factors required for porcelain curing These factors include heat and vacuum Heat Calibration First press CALIB and wait for the left display to show Calib on its screen Then press PRG EDIT and observe the number 1 appearing on the right display To raise the temperature enter the lesser number and to lower the temperature enter the greater number For example if there is a deg C difference between the actual and the targeted temperatures and the actual temperature is lower then you must enter 1 Note The number 471 is the default number set by the factory and refers to the melting point of pure silver By changing this number proportional changes in furnace temperature can be obtained Vacuum Calibration To calibrate the vacuum first connect all the vacuum connections the hose and vacuum pump supply ca
18. lay in creating vacuum is acceptable if you want to start the vacuum pump immediately after closing the door this parameter should be set equal to LOW TEMP The following relation must exist among these three thermal parameters LOW TEMP EVACUATION TEMP HIGH TEMP or the furnace issues the ERR Y error message 4 VENT This parameter can be programmed in terms of the programmable temperature or time This parameter designates a point in the thermal cycle where the vacuum inside the chamber is automatically discharged that is air enters the chamber If VENT is programmed in terms of temperature then it corresponds to the temperature at which air enters the chamber or the vacuum is discharged VENT HIGH TEMP If VENT is expressed in minutes and seconds in the program then it is equal to the length of time required for maintaining the vacuum level constant during HOLD TIME VENT HIGH TEMP If VENT is expressed in minutes and seconds in the program then it shows the length of time required for maintaining the vacuum level constant during HOLD TIME VENT HOLD TIME Allowable Range for Programmable Parameters The following table determines the allowable limits for the 1 parameters used in furnace programs Note that these maximum and minimum limits for the parameters must be adhered to during programming Otherwise an error message is issued Parameter Min Max Min Low Temperature 700 C Pre Heat Time 1
19. nd Functions As the word IDLE suggests the furnace does not work during its idle period During short term idling do not turn off the furnace and run the IDLE program instead This would increase the useful life of your furnace as well as your operating speed For running and programming IDLE follow these steps Press IDLE and watch the indicator light above it turn on The right display shall display YES or NO These two words can be used for activating the AUTP IDLE mode which is explained later Y Press PRG EDIT You can then use STEP or ENTER on the thermal diagram to observe the LOW TEMP and VAC parameters along with their numerical values Y Program LOW TEMP for IDLE via the numerical keys For example enter C YY F Then press ENTER to save this value Thus VAC shall appear on the thermal diagram and the digital display t Program VAC for setting the required vacuum during the idling period For example you can enter Y cm Hg Then press ENTER Now by pressing START you can run IDLE To exit IDLE use the STOP key Note If LOW TEMP is greater than C in IDLE the maximum running time shall be limited to Y minutes However if LOW TEMP is less than C the program shall run for Y hours and then automatically stop and the furnace is allowed to cool During the running of IDLE it is possible to revise or program other main programs by pressing PRG NO and entering the main program number without interr
20. nd for other purposes The STOP key is used for stopping all running programs EESE E Furnace Operation AT Furnace Operating Press the ON OFF switch at the back to turn on the furnace Wait till the top door fully opens Furnace Programming Your furnace can run programs for different heating cycles with maximum temperature of Y C All these programs have parameters to which numerical values can be attributed Familiarity with these parameters is an absolute prerequisite for operating the furnace For this reason we first present a detailed description of each parameter Program Parameters Note Throughout the instructions given on furnace operation the abbreviation TEEMP shall be used to denote temperature p LOW TEMP The temperature at which the furnace door begins to close As soon as the door is closed completely the heating cycle shall start at this temperature PRE HEAT TIME The programmable time in minutes and seconds required for closing the furnace door As soon as the temperature reaches LOW TEMP the door starts closing HEAT RATE Increasing the muffle Temperature in time from LOW TEMP to HIGHG TEMP expressed in degrees per minute Note The rate of increasing furnace temperature heating rate depends on this parameter The greater the numerical value of this parameter the faster shall the furnace reach the final temperature HIGH TEMP Example If the heating rate for zinc i
21. ners Y HOAT SN e Ps yy VIN W ecco seep caste tae SUM nee MISI E FIND MEEDIMN IU MEUM M MEME MIENNE yy PSU MYX ry Bade M TT Vy IOLE SAN MN IT MIGHT A a E E oa anes EA A N E E E NY AUB I Delo MN m E C and F Switches EE EESE E SFART STOP SWINE RR T RES iE Product Operating AT Fn e OS AU INE occsteesriieiedmies umm lorte E E yo le EOWTEMP ees cc m ye 3e uco3WDUC yo We IR TE yo E cac o WELLS EEUU SETUP o Me eco NulsPies eenumMet m yo V VACUUM LEVEL VAC c ccccccsecceccsessccsccsucsecseesuesuesucssessecsucsusceseasessesscssesuesueeessesetseessscaesatesecsesstesueseesseeaeen yo OS ECU TIN TEMP s HPO ye Sh WEEP e yo The allowable Range for Programmable Furnace Parameters eese yo Programming ATE PU VCO POS ea WMI ERNEUT B Displaying and Revision of parametric Values during Thermal Cycle Execution esee 34 Programming and Revision of other Programs during Main Program Execution eene Y IDLE Mode Programming and FUNCTIONS ccccsessssscesssssceceeceessesuseescesesseeeceecessneceec
22. press END and enter Y for setting the allowable waiting time before executing OVER RIDE at Y minutes Note In this mode The HOLD TIME in the curing operation shall be at most min after the furnace temperature has reached the Y C limit beyond HIGH TEMP the green LED turns on and the furnace door opens only after this time has elapsed After each time of pressing AIR or VAC keys you can set the temperature at C more than the last OVER RIDE temperature so as to repeat the HOLD TIME for another minute Upon completion of OVER RIDE program the oven door automatically opens after min The OVER RIDE operations can be repeated until the desired results have been obtained without your having restart the heating cycle Note The OVER RIDE capability can be applied in other research and test programs as well to obtain the required temperature END END OVER RIDE Switch This key is used in the OVER RIDE mode VAC or AIR to stop the furnace operation Upon pressing this key the furnace door opens allowing the operator to repeat the VAC AIR OVER RIDE mode The difference between END and STOP keys is that the former does not fully stop the running program and can be used at any time during OVER RIDE Another application of END is programming the furnace in three modes namely Mode Mode and Mode Y as was explained above LIGHT Switch EESE E This key provides ambient illumination in the work place the area surrounding t
23. ric Values during Thermal Cycle Execution The AUTO THERM AT vacuum furnace has been designed in such a way that the operator can revise the thermal cycle parameters even during execution To do this press PROGRAM EDIT key upon starting the program Then follow the above Y steps one step at a time by pressing STEP and make the necessary revisions For saving the new values press ENTER During the running of a program you can only change those parameters for which the thermal diagram and cycle have not yet been executed For example after reaching LOW TEMP You cannot change LOW TEMP any more or once a vacuum has been established within the chamber you can no longer change VACUUM LEVEL or VACUUM TEMP If the VENT parameter is zero during the vacuuming process you cannot change it again The applied changes in settings during the thermal cycle can only be executed in the same program and if the program is rerun then the previous values for these parameters shall hold EESE E Programming and Revision of other Programs during the Main Program Execution During the running of one of the main programs or any of the DRY IDLE or NIGHT capabilities you can change or revise the information for other main programs To do this without interrupting the running program follow the same steps mentioned above for programming Start by pressing PRG NO select the desired program number and so on IDLE Mode Programming a
24. s never allow unauthorized persons to handle this furnace Never connect the furnace to protectors stabilizers and transformers Note In case of severe voltage fluctuations or voltage drop use a high quality stabilizing transformer Max power Y kW Never place liquids on the furnace Tips to Increase Useful Life The following can increase the useful life of this product Avoid turning on and off this furnace repeatedly or at short intervals Upon power on of the furnace every morning or after it has remained idle for a ling time run the NIGHT program This will prevent moisture ambient air penetration into the muffle and increases its useful life To run this program press NIGHT and then START In regions with high humidity run DRY every two months to dry the muffle completely In case of non use for a few consecutive days be sure to dry the thermal elements thermocouples and fibers by running DRY It is better to turn off the furnace at a temperature of at least C Close the furnace door to avoid moisture penetration into the muffle The base on the furnace door is at least mm in height and acts as a holder as well as a thermal insulator In case the base height is reduced or the base broken thermal leakage into the door and the EESE E furnace chamber shall be unavoidable which will damage the furnace In such a case contact our Technical Department Avoid touching the internal parts of
25. s set at 1 then the muffle temperature shall rise 1 degrees every minute HIGH TEMP The maximum programmable temperature the furnace can attain during a working cycle Upon reaching this temperature the chamber shall be maintained at this temperature for the duration of HOLD TIME for the purpose of curing the porcelain HOLD TIME The programmable duration in minutes and seconds required for maintaining the work at maximum temperature As soon as the HOLD TIME expires the furnace door shall open automatically This parameter can take the values between and minutes in the program COOL COOLING TIME The programmable time in minutes and seconds for complete opening of the furnace door This parameter determined the time required upon expiring of HOLD TIME for the furnace door to open completely EAE E V VACUUM LEVEL VAC This parameter is used for determining and programming the vacuum level within the chamber and maintaining the same level throughout the program execution time Note The negative values V cm of mercury column are used to measure vacuum level EVACUATION TEMP This is the programmable temperature at which the pump starts discharging the air inside the chamber Thus after the door has been fully closed and the furnace temperature has reached the value set for this parameter the vacuum pump shall automatically start operating to take the vacuum level to the programmed value Note In case no de
26. starts blinking Enter your desired value for HEAT RATE for example C per minute and press ENTER The digital display automatically moves forward on parameter and the TEMP indicator light beside it is turned on while the HIGH TEMP on the thermal diagram starts blinking indicating that the final temperature parameter is ready for programming reviewing Enter your desired value for the maximum temperature HIGH TEMP You can for example enter 41 C and press ENTER The display moves to the next parameter and the TIME indicator light starts blinking Also the HOLD TIME indicator light on the thermal diagram starts blinking ready for accepting the changes or revisions made in the time for keeping the porcelain at the maximum temperature Enter your desired waiting time at the curing temperature or HOLD TIME via the numerical keys For example you can enter for minutes and for seconds Press ENTER after inputting this parameter value The display goes on to the next parameter and the COOLING light starts blinking ready for any changes revisions that you may wish to enter for the time required for the door to open or cooling time Enter the time required for lowering the furnace door in minutes and seconds You can for example enter for minutes and for seconds Then press ENTER to save the entered time The display next goes to VAC vacuum level Enter your desired value for VAC for example
27. sting program or do a new program Note Only after entering all the required information can the program be run f Press the PRG EDIT key The left display shows the minimum temperature temperature or LOW TEMP and the LOW TEMP indicator starts blinking Note Use the STEP key to move forward the parameters on the heat performance diagram and the digital display Use CLEAR to erase the incorrect numbers as well as to return to the previous parameters on the diagram display Enter your desired value for LOW TEMP for example C from the assumed program Note The TEMP indicator light shall turn on upon entering this value Save it in the memory by pressing ENTER EESE E The digital display automatically highlights TIME and the PRE HEAT TIME on the diagram starts blinking the previous time entered for lifting the furnace door Note If you hit the wrong key while entering the values use CLEAR to erase them and then enter the correct values If necessary press CLEAR again to return to the previous parameter D Enter the time required for lifting the furnace door Enter Y for minutes and for seconds Y Note The TIME indicator light starts blinking This means that the TIME parameter is being programmed Press ENTER immediately after entering your desired time which must also be an acceptable value The display automatically goes on to the next parameter HEAT RATE and the EAT RATE light on the diagram
28. sting the Top Door OVER RIDE Switches Sometimes upon completion of the heating cycle programs for curing the prosthetic teeth and after opening the furnace door the required quality is not obtained regarding curing temperature and vacuum level For this reason your furnace is provided with the possibility of repeating the heating cycle with or without vacuum in the presence of air at deg C higher than the HGIH TEMP limit EESE E In such a case the AIR and VAC LEDs would start blinking and are ready to receive further orders The VAC key is for repeating the cycle from the HOLD TIME stage onward at a higher temperature in vacuum and the AIR key does the same in air without vacuum The OVER RIDE capability has three modes Mode OVER RIDE is not executed In this mode we want to prevent the furnace from going to V OVER RIDE upon completion of the heating cycle To this end first before running the program press END and observe the word OVER on the right display and either or or or Y on the left display Select to stop the program from going to OVER RIDE mode Mode Y Press END and select to enter the OVER RIDE mode Thus upon running each program in the curing cycle and upon expiring of HOLD TIME the furnace gives the operator one minute to use the OVER RIDE capability Mode Y In case more time is needed after opening of the door for checking the results you can use the third mode Simply
29. upting IDLE Auto IDLE Mode Upon completion of the furnace thermal cycles it is possible to automatically set each program at a programmable value You can use this mode when Auto IDLE is set at IDLE YES Upon completion of the main programs the furnace temperature is automatically set at your programmed LOW TEMP temperature for Y minutes To run AUTO IDLE follow these steps Press AUTO IDLE and observe YES or NO appear on the right display Y PressSTEP to select either IDLE YES or IDLE NO Y Press STOP Now the AUTO IDLE is set at your required status EAESE E NIGHT Program NIGHT is a fixed program which maintains furnace temperature at Y C in a vacuum This capability can be utilized during long term idle periods for preventing moisture penetration into the muffle and thus increasing the useful life of the furnace The following procedure must be followed to execute NIGHT Power on the furnace Make sure the furnace is not in the programming or program execution mode Y Press NIGHT The START and NIGHT keys shall both start blinking and SLEEP is displayed on the right screen V Press START The furnace door is closed if it was initially open and the furnace temperature is shown on the left display Immediately after the door has completely closed the vacuum pump starts operating for one minute and then is automatically stopped Even if vacuum level drops the pump shall not operate again in t
30. us operations in dentistry laboratories including degassing alloys curing various kinds of porcelain glazing etc The AT Porcelain Curing Furnace is a fully automatic product equipped with a precise control system for high quality curing in the least possible time With the hope of enticing your satisfaction Kousha Fan Pars Engineering and Manufacturing EAESE E Product Specifications Unpacking the Product Your furnace package is designed for proper physical protection in accordance with the requirements of related standards The package is resistant to water penetration and mechanical pressure as specified in the relevant standards To take the furnace and its accessories out of its box first position the box with the zend sign points upward Then open the upper part and take out the soft protective elements and the furnace Take great care in handling the furnace and position it in a suitable location Note For safe and easy future handling keep the box and packaging accessories in a safe place At Package Content Y AT Furnace Y User Manual Y Special Vacuum Hose Furnace Cable o Base Pins amp Ceramic Tray Firing Tray Pins amp Ceramic Tra V Vacuum Pump lt A gt N 7 is Fumace Cable Special Vacuum Hos KECE System Components E Muffler amd its Protective oOo lo System Connections Electrical Connections
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