Jelrus Infinity M-30 - General Service Information; Temperature Calibration Procedure

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CAUTION: The INFINITY should be serviced only by qualified service technicians. Be sure to
unplug the power cord and wait for the furnace to cool before performing any service oper-
ation. For help with operating or servicing your Jelrus equipment, please call Jelrus any
time between 9:00am and 5:00pm Eastern time.
 TollFree: 
1-800-AIR-TECH(1-800-247-8324)
TEMPERATURE CALIBRATION
InfinityMulti-StageBurnoutFurnacescomecompletewithtemperatureCalibrationTablets(2)whichaccurately
meltat1500°F(816°C)(Re-OrderCalibrationTabletKit-PN15291)
YourInfinityisfactorycalibratedItisnotnecessarytore-calibrateoninstallationIfitbecomesnecessaryto
re-calibrateinthefuture,usethefollowingcalibrationprocedure
Temperature Calibration with Calibration Tablets(Figure3)
1Placeashortmetalcastingringtowards the front centerofthechamber
2PlaceaceramictrayorasmallpieceofcastingringliningmaterialontopoftheringPlaceatablet
inthecenterofthetray
3ProgramtheInfinityasfollows:
HEAT RATE TEMP HOLD TIME
STAGE 1 FULL 1200°F(649°C) 0:05
STAGE 2 25°F(14°C) 1700°F(927°C) 0:00
STAGE 3 NO * *
STAGE 4 NO * *
*Thoughanynumbermayappear,theunitisdeativatedwhen“NO”isselectedforHEATRATE
4ClosethefurnacedoorandpressSTART/STOP
5Whenthefurnacetemperatureattains1400°F(760°C)asindicatedontheMaindisplay,openthe
furnacedoorslightlyandbegintocheckforthemeltingoftheofthetabletContinuetodothisateach
25°F(14°C)interval,openingthefurnacedoorjustenoughtodetermineataquickglanceifthe
tablethasbeguntoliquifyattheedges
SERVICE