Jelrus Infinity M-30 User manual

Infinity
Burnout Furnaces
TM
OPERATOR’S MANUAL
A6732 ISO 13485:1996
ISO 9001:2000
Air Techniques Inc.
Hicksville, NY

1
Introduction2

Warranty2
SafetyInstructions2
Specifications3

KeyPartsIdentification&Explanation                                             4-6
Installation7-8
Operation9-16
ProgramandOperate-OneStageProgram 9
ProgramandOperate-TwoStageProgram                                             10
ProgramandOperate-ThreeStageProgram                                           11
ProgramandOperate-FourStageProgram                                             12
ReviewaProgram13
EditWhileaProgramisRunning 14
SamplePrograms15

ErrorCodes17-18

Service19-20

FieldService21-26
ReplacementofHeatingPlates21
ReplacementofMainPCBoard23
ReplacementofThermocoupleAssembly25
ReplacementoftheTriac26
SparePartsList27-28
ProgramCards29-30

TABLE OF CONTENTS

ThankyouforpurchasinganInfinity Burnout Furnace
Wehavedesignedandmanufacturedthisfurnaceusingthelatestinmicrocomputertechnologytogiveyoumany
yearsofdependableserviceThecontrolsonyournewInfinityaredifferentfromthoseyoumaybeusedtoonan
ordinaryburnoutfurnaceToensurethatyourInfinityBurnoutFurnacegivesyouthehighestlevelofservice,review
andfollowtheguidelinesoutlinedinthisOperator’sManual
WARRANTY

ThisJelrusequipmentiswarranteedtobefreefromdefectsinmaterialandworkmanshipfromthedateofinstallation
foraperiodoftwelvemonths(themuffleonourfurnacesarewarantedfor24months)
Anyitemreturnedtoourfactorythroughanauthorizeddealer,willberepairedorreplacedatouroptionatnocharge
providedthatourinspectionshallindicateittohavebeendefectiveDealer,labor,shippingandhandlingcharges
arenotoveredbythiswarranty
Thiswarrantydoesnotapplytodamageduetoshipping,misuse,carelesshandlingorrepairsbyotherthanautho-
rizedservicepersonnelJelrusInternationalisnotliableforindirectorconsequentialdamageorlossofanynature
inconnectionwiththisequipment
ThiswarrantyisinlieuofallotherwarrantiesexpressedorimpliedNorepresentativeorpersonisauthorizedto
assumeforusanyliabilityinconnectionwiththesaleofourequipment
SAFETY INSTRUCTIONS
UseoftheInfinityfurnacenotinconformancewiththeinstructionsspecifiedinthismanualmayresultinpremture
failureoftheunit
WARNING:Topreventfireorelectricalshock,donotexposethisappliancetorainormoisture
ATTENTION USERS:
Do Not Attempt Internal Service
TheinterioroftheMainAssemblyisonlyaccessiblebyremovinghardwarewithtoolsandshouldonlybeopened
andservicedbyqualifiedtechniciansSincetheinterioroftheunitmaycontainhighvoltageanddangerouscom-
ponents,failuretoheedthiswarningmayresultinequipmentdamage,personalinjuryand/ordeath

PleasecallJelrusbetween9:00amand5:00pm(EST)forserviceinformation
INTRODUCTION
2
Thissymbolalertstheuserthatimportant
OperatingandMaintenanceinstructions
havebeenincludedwiththeunitRead
carefullytoavoidanyproblems
Thissymbolwarnstheuserthatuninsulated
voltagewithintheunitmaybeofsufficient
magnitudetocauseelectricshock

SPECIFICATIONS
INFINITY M-30 INFINITY L-30
Electrical 100V 50/60Hz 1150W
115V 50/60Hz 1150W
220/230V 50/60Hz 1150W
240V 50/60Hz 1150W
100V 50/60Hz 1610W
115V 50/60Hz 1610W
220/230V 50/60Hz 1610W
240V 50/60Hz 1610W
Capacity 8-13/4”ringsor2-3”rings 15-13/4”ringsor
5-13/4”ringsand3-3”rings
Overall
Dimensions
10-3/4”Wx13-7/8”Dx18-3/4”H
(273cmx352cmx476cm)
14-1/2”Wx14-3/8”Dx18-3/4”H
(368cmx365cmx476cm)
Heating
Chamber
Dimensions
5-1/2”Wx5-1/4”Dx5-1/8”H
(140cmx133cmx130cm)
9-1/8”Wx5-1/4”Dx5-1/8”H
(232cmx133cmx130cm)
INFINITY M-30 AND L-30
NumberofPrograms 30
NIGHTTIME
(DELAYSTART)
0-99hours
Note:Thisisthetimerequiredfortheprogramtobecompleted
andreadytocast
HEATRATE*
(Stage1)
a)1-30°F/min(1-17°C/min)
b)“FULL”Stageheatsatthemaximumrateattainable
HEATRATE*
(Stages2,3,&4)
a)1-30°F/min(1-17°C/min)
b)“FULL”Stageheatsatthemaximumrateattainable
c)“NO”Stageisnotused
d)“COOL”Stagecoolsdowntotheprogrammedtemperature
Note:If“NO”isselectedforastage,thatstageandallsubsequent
stageswillnotbeusedThefurnace,therefore,canbeusedforone,
two,threeorfourstageoperation
TEMPERATURE a)Stage1:  150°F-2012°F(66°C-1100°C)
b)Stage2,3,4: 100°F-2012°F(38°C-1100°C)
HOLDTIME 0-4hours
*ProgrammableheatratesActualheatrateathightemperaturesmaybelowerdependingupon
furnaceloadandelectricalvoltage
3

DISPLAY DESCRIPTION
1 NIGHTTIME   PresstostartadelayedprogramThenumberenteredisthetime
 (DELAYSTART)   requiredfortheprogramtobeCOMPLETEDANDREADYTOCAST
      Whenaprogramisrunning,presstodisplaythetimeremainingto
      completetheprogram
2 START/STOP   Presstostartorstopaprogram
3      PresstoincreaseanumberThelongerthebuttonispressed,the 
      fasterthenumberschange
4      PresstodecreaseanumberThelongerthebuttonispressed,the 
      fasterthenumberschange
5 ENTER/REVIEW   Whenprogrammingorreviewingaprograminprocess,pressto 
      advancetothenextparameter
6 PROGRAMSELECT  Presstoselectaprogramortoreviewtheprogramcurrentlyrunning
7 STAGE1-2-3-4   Whileprogramming,thenumberofactivestagesareilluminatedIn
      theburnoutprocess,thecurrentSTAGEflashes
8 °Fand°C    Identifiesthetemperaturescale
9 °/MIN    Identifiestheheatrate
10HH:MM    IndicatestimeWhenflashingitindicatesthatapowerfailurehas 
      occurred
11MainDisplay   AThe4digitdisplayindicatesthechambertemperature
      BWhenprogrammingorreviewing,indicatesPROGRAMNUMBER,
      NIGHTTIME(DELAYSTART)(timetocompletion),HEATRATE, 
     TEMPandHOLDTIME
      CDisplaysspecialwordsanderrorcodes

12ProgramStatusGraph  Indicatesstatusoftheburnoutprocess
13DoorInterlock   Shutsoffelectricalpowerfromtheheatingplates
 SafetySwitch   whenthefurnacedoorisopened
FRONT PANEL (Figure1)
4
KEY PARTS IDENTIFICATION AND EXPLANATION



5
Figure 1
INFINITY M-30 AND L-30 IDENTIFICATION
13
10
11
9
8
7
6
5
12
4
3
2
1
Front
Panel
Heating
Chamber
Vent
Tube
KEY PARTS IDENTIFICATION AND EXPLANATION

KEY PARTS IDENTIFICATION AND EXPLANATION
LOWER BACK PANEL (Figure 2)
DISPLAY DESCRIPTION
1 PowerCord AOn100Vand115Vfurnaces,theACpowercordispermanently
   connectedtotheunit
  B On220/230Vand240Vfurnaces,theACpowercordisdetachableand
   connectstoastandardIECreceptacle
  CACpowercordsareprovidedtocorrespondtoreceptaclesthatareavailable
   inaspecificcountry
2 CircuitBreaker Protectscircuitryfromelectricaloverload
  -Blackbuttonwill“popout”ifoverloadispresent
  -Toreset,waitoneminuteandpushblackbuttonintobodyof  
  circuitbreaker
Figure 2
INFINITY LOWER BACK PANEL
6

UNPACK AND SET-UP
INSTALLATION
7
1 UnpackthecontentsoftheboxRemovethefollowingmaterials:
 AVentTube-Removefrombubblewrapandinsertinholeontopoffurnace
 BCalibrationTableKit-Removeplasticbagcontainingtwotabletsandsaveforfutureuse
 CBurnoutTray-Removetray(s)frombubblewrapandinstallonthefloorofthechamber
2 Placethefurnaceinpositionallowingaminimumof2inches(5cm)ofairspaceonallsides
3 PlugthepowercordintoawallreceptacleOn220/230Vand240furnaces,firstconnectthepowercord
 totheIECreceptaclelocatedontherearofthefurnaceAseparateelectricalcircuitisrecommended
 Thevoltageratingofyourfurnaceisontheserialnumberplate
4 Thefurnaceisnowreadyforoperation
CAUTIONS:
Do not install closer than 2" (5cm) from any combustible material. DO NOT BLOCK VENT
HOLE ON TOP OF THE FURNACE. Hot gases are vented through this hole.
TO SET TEMPERATURE SCALE (Figure1)
115Vfurnacesarepre-setindegreesFahrenheit
100V,220/230Vand240Vfurnacesarepre-setindegreesCelsius
1 Turnthepowerswitchon(Ifthefurnaceisalreadyon,besureitisintheidlemode-noprogramis
 running)ThechambertemperatureappearsontheMainDisplayandthe°Cor°Flightgoeson
2Press atthesametimeThedegreelightswitchestotheoppositetemperaturescale



INSTALLATION
8
Whenaprogramiscompleted,20"beeps"soundevery15minutestoremindtheoperatorthatthe
materialisreadytocast
1BesuretheInfinityisintheidlemode-noprogramusrunning
2Pressand(whileholding)pressPROGRAMNUMBERtodisplaythestatusofthe"beep"
"ON"indicatesthebeepisactive"OFF"indicatesthebeepisinactive
3Useeitherofthe toturnthe"beeps"onoroff
4Toreturntotheidlemode,wait7secondsorpressSTOP/STARTtwice(IfSTOP/START
ispressedonce,cyclestarts)
TO TURN THE “BEEP” ON AND OFF (Figure1)




PROGRAM AND OPERATE - ONE STAGE PROGRAM (Figure1)
9
OPERATION
1 Turnthepowerswitchon
2 PressPROGRAMNUMBERUsetodisplaythedesiredprogramnumber(P1-P30)
3 PressENTER/REVIEWtoselectthedisplayedPROGRAMNUMBERSTAGE1andNIGHTTIME
 (DELAYEDSTART)lightsturnonEntertosetthetimerequiredfortheprogramtobecompletedand
 readytocast(1-99hrs)
4 PressENTER/REVIEWSTAGE1lightremainson,NIGHTTIME(DELAYSTART)lightturnsoffand
 HEATRATElightturnsonEntertoselecttheheatraterequiredfrom1°F-30°F/min  
 (1oC-17oC/min)or"FULL"forthemaximumheatrate
5 PressENTER/REVIEWSTAGE1lightremainson,HEATRATElightturnsoffandTEMPlightturnson
 Entertoselectthetemperaturerequireduptothemaximumof2012°F(1100°C)
6 PressENTER/REVIEWSTAGE1lightremainson,TEMPlightturnsoffandHOLDTIMElightturnson
 Entertoprogramthetimeneededtoholdatabovetemperature(0-4hrs)
7 Foronestage,thefurnacemustbeprogrammednottouseSTAGE2,3or4Followthesesteps:
 AAftercompletingstep6,pressENTER/REVIEWSTAGE1lightturnsoff,STAGE2andHEATRATE
  lightsturnon
 BPressMainDisplayshows"5,4,3,2,1,COOL,NO"Select"NO"to
  programthefurnacenottouseSTAGE2,3or4
8 Allnecessaryinformationforthisprogramisnowentered
9 Toruntheprogramimmediately,pressSTART/STOP
10Todelaythestartoftheprogramtobereadytocastatthepre-settime(seeStep3),pressNIGHTTIME
 (DELAYSTART)
NOTE : If NIGHT TIME (DELAY START) is pressed while a program is running, the time
remaining for completion of the program will appear on the Main Display for 5 seconds.












OPERATION
PROGRAM AND OPERATE - TWO STAGE PROGRAM (Figure1)
10
1FollowOneStageProgram,Steps1-6
2PressENTER/REVIEWSTAGE1lightturnsoff,STAGE2andHEATRATElightsturnonMain 
DisplayshowsfourheatratechoicesChooseone:
 ASelectheatratebetween1°F-30°F/min(1°C-17°C/min)using
 BSelect"FULL"toprogrammaximumheatrate
 CSelect"COOL"toprogramthefurnacetocooltoaselectedtemperature
 DSelect"NO"toturnofSTAGE2,3and4ThiswillresultinaOneStageProgram
NOTE: The HEAT RATE cannot be programmed to "COOL" in STAGE 1 - only in STAGE 2,
3 or 4.
3PressENTER/REVIEWHEATRATElightturnsoffandTEMPlightturnsonEnterforthe 
temperaturerequired:heatingtemperatureuptoamaximumof2012°F(1100°C)orcooling
temperaturedowntoaminimumof100°F(38°C)
4PressENTER/REVIEWTEMPlightturnsoffandHOLDTIMElightturnsonEntertoprogramthe
timeneededtoholdattheabovetemperature(0-4hrs)
5Fortwostages,thefurnacemustbeprogrammednottouseSTAGE3or4Followthesesteps:
 AAftercompletingStep4,pressENTER/REVIEWSTAGE2lightturnsoff,STAGE3andHEAT 

RATElightsturnon
 BPressMainDisplayshows“5,4,3,2,1,COOL,NO”Select“NO”toprogramthe
 furnacenottouseSTAGE3or4
6Allnecessaryinformationforthisprogramisnowentered
7Toruntheprogramimmediately,pressSTART/STOP
8Todelaythestartoftheprogramtobereadytocastatthepre-settime(seeOneStageProgram,
Step3),pressNIGHTTIME(DELAYSTART)
NOTE: If NIGHT TIME (DELAY START) is pressed while a program is running, the time
remaining for completion of the program will appear on the Main Display for 5
seconds.








OPERATION
PROGRAM AND OPERATE - THREE STAGE PROGRAM (Figure1)
11
1FollowTwoStageProgram,Steps1-4
2PressENTER/REVIEWSTAGE2lightturnsoff,STAGE3andHEATRATElightsturnonMain 
DisplayshowsfourheatratechoicesChooseone:
 ASelectheatratebetween1°F-30°F/min(1°C-17°C/min)using 
BSelect"FULL"toprogrammaximumheatrate
 CSelect"COOL"toprogramthefurnacetocooltoaselectedtemperature
 DSelect"NO"toturnofSTAGE3and4ThiswillresultinaTwoStageProgram
NOTE: The HEAT RATE cannot be programmed to "COOL" in STAGE 1 - only in STAGE
2, 3 or 4.
3PressENTER/REVIEWHEATRATElightturnsoffandTEMPlightturnsonEnterforthe
temperaturerequired:heatingtemperatureuptoamaximumof2012°F(1100°C)orcooling 
temperaturedowntoaminimumof100°F(38°C)
4PressENTER/REVIEWTEMPlightturnsoffandHOLDTIMElightturnsonEntertoprogramthe
timeneededtoholdattheabovetemperature(0-4hrs)
5Forthreestages,thefurnacemustbeprogrammednottouseSTAGE4Followthesesteps:
 AAftercompletingStep4,pressENTER/REVIEWSTAGE3lightturnsoff,STAGE4andHEAT 

RATElightsturnon
 BPressMainDisplayshows“5,4,3,2,1,COOL,NO”Select“NO”toprogramthe
furnacenottouseSTAGE4
6Allnecessaryinformationforthisprogramisnowentered
7Toruntheprogramimmediately,pressSTART/STOP
8Todelaythestartoftheprogramtobereadytocastatthepre-settime(seeOneStageProgram,
Step3),pressNIGHTTIME(DELAYSTART)
NOTE: If NIGHT TIME (DELAY START) is pressed while a program is running, the time
remaining for completion of the program will appear on the Main Display for 5 seconds.









OPERATION
PROGRAM AND OPERATE - FOUR STAGE PROGRAM (Figure1)
12
1FollowThreeStageProgram,Steps1-4
2PressENTER/REVIEWSTAGE3lightturnsoff,STAGE4andHEATRATElightsturnonMain
DisplayshowsfourheatratechoicesChooseone:
 A Selectheatratebetween1°F-30°F/min(1°C-17°C/min)using
 B Select“FULL”toprogrammaximumheatrate
 C Select“COOL”toprogramthefurnacetocooltoaselectedtemperature
 D Select“NO”toturnoffStage4ThiswillresultinaThreeStageProgram
NOTE: The HEAT RATE cannot be programmed to “COOL” in STAGE 1 - only in STAGE 2,
3 or 4.
3PressENTER/REVIEWHEATRATElightturnsoffandTEMPlightturnsonEnterforthetemperature
required:heatingtemperatureuptoamaximumof2012°F(1100°C)orcoolingtemperaturedown
toaminimumof100°F(38°C)
4PressENTER/REVIEWTEMPlightturnsoffandHOLDTIMElightturnsonEntertoprogramthe
timeneededtoholdattheabovetemperature(0-4hrs)
5Allnecessaryinformationforthisprogramisnowentered
6Toruntheprogramimmediately,pressSTART/STOP
7Todelaythestartoftheprogramtobereadytocastatthepre-settime(seeOneStageProgram,
Step3),pressNIGHTTIME(DELAYSTART)
NOTE: If NIGHT TIME (DELAY START) is pressed while a program is running, the time
remaining for completion of the program will appear on the Main Display for 5
seconds.







OPERATION
REVIEW A PROGRAM (Figure1)
13
1Turnthepowerswitchon
2PressPROGRAMNUMBER
3PresstoselecttheprogramnumbertobereviewedThePROGRAMNUMBER(P1-P30)
willappearontheMainDisplay
4 The number of stages in the program are indicated by the STAGE lights next to the Main Display
5PressENTER/REVIEWNIGHTTIME(DELAYSTART)lightturnsonThenumberofhoursenteredforthe

entireprogramtobecompletedandreadytocastappearsontheMainDisplayAfter7seconds,ifno
otherbuttonispressed,NIGHTTIME(DELAYSTART)lightturnsoffandtheactualfurnacetemperature
appearsontheMainDisplay
6PressENTER/REVIEWagainIf7secondshasnotelapsed,theHEATRATElightturnsonIf7seconds
hasalreadyelapsedandthefurnacetemperatureappearsontheMainDisplay,pressENTER/REVIEW
twiceFirsttheNIGHTTIME(DELAYSTART)lightturnsonandthentheHEATRATElightturnsonWhenthe
HEATRATElightison,theprogrammedheatrateappearsontheMainDisplay
NOTE: STAGE 1 light is now on.
7PressENTER/REVIEWandTEMPlightturnsonTheprogrammedtemperature(TEMP)forSTAGE1
appearsontheMainDisplay
8PressENTER/REVIEWandHOLDTIMElightturnsonTheprogrammedHOLDTIMEforSTAGE1
appearsontheMainDisplayinHR:MIN
9AlloftheinformationinSTAGE1hasnowbeenenteredIfENTER/REVIEWispressedagain,STAGE2
lightturnsonReviewSTAGE2followingthesameprocedureasaboveContinuepressingENTER/
REVIEWtoreviewalloftheindividualparametersinSTAGE2,3,or4
NOTE: NIGHT TIME (DELAY START) appears only at the very beginning of STAGE 1.



OPERATION
EDIT WHILE A PROGRAM IS RUNNING (Figure1)
14
1Toidentifywhichprogramisrunning,pressPROGRAMNUMBER
NOTE: The program number cannot be changed using while the program is running.
2Todeterminethetimeremainingforthecompletionoftheprogram,pressNIGHTTIME(DELAYSTART)
ThetimeremainingappearsontheMainDisplayfor5seconds
3Anyindividualparametercanbeincreasedordecreasedduringtheactualrunningofall30
programs
NOTE: HEAT RATE cannot be changed to "NO" in the stage currently running or in the
stages already completed.
4Tochangeaparameterwhileaprogramisrunning,pressENTER/REVIEWtoadvancetothedesired
STAGEandparameter(ieHEATRATE,TEMPorHOLDTIME)Initially,STAGE1willappear  
Anyparametercanbeincreasedordecreasedbypressing or 
5AnyprogramcanbestoppedorstartedbypressingtheSTART/STOPbutton
6IfaprogramiseditedwhilerunningandtheHEATRATEinSTAGE2,3or4issetto"COOL"butthe
correspondingTEMPprogrammedisenteredtoheattoahighertemperaturethanthepreviousstage,
theInfinitywilltrytoheatwitha0°F/Min(0°C/Min)HEATRATEInthiscase,whenNIGHT 
TIME(DELAYSTART)ispressed,99:99(Hr:Min)flashesontheMainDisplay,indicatingthatthe
programcannotbecompleted





NIGHT TIME
DELAY START
OPERATION
SAMPLE ONE STAGE PROGRAM
(Tobecompletedandreadytocastin24hours)
HEAT RATE TEMP HOLD TIME
STAGE 1
STAGE 2
STAGE 3
STAGE 4
24:00 10°F(6°C) 1600°F(871°C) 1:00
NO
NO
NO
*
*
*
*
*
*
*Thoughanynumbermayappear,theunitisdeactivatedwhen“NO”isselectedfortheHEATRATE
NOTE: To turn off STAGE 2,3 and 4, select “NO” for the HEAT RATE in STAGE 2.
PressNIGHTTIME(DELAYSTART)Infinityautomaticallyturnsonatthecorrecttimetocompletetheprogram
andbereadytocastin24hours
SAMPLE TWO STAGE PROGRAM
(Tostartimmediately)
HEAT RATE TEMP HOLD TIME
STAGE 1
STAGE 2
STAGE 3
STAGE 4
10°F(6°C)
1600°F(871°C) 1:00
NO
NO
*
*
*
*
*Thoughanynumbermayappear,theunitisdeactivatedwhen“NO”isselectedfortheHEATRATE
20°F(11°C)
600°F(316°C) 30
NOTE: To turn off STAGE 3 & 4, select “NO” for the HEAT RATE in STAGE 3.
Tostartimmediately,pressSTART/STOP
Followthesameprogrammingproceduresifathreeorfourstageprogramisdesired
15

Tostartimmediately,pressSTART/STOP
Followthesameprogrammingproceduresifathreeorfourstageprogramisdesired
PressNIGHTTIME(DELAYSTART)tostartanovernightburnout(SeeSAMPLEONSTAGEPROGRAMtopro-
gramNIGHTTIME(DELAYSTART)time
NOTE: When the temperature is set to a lower temperature than in the previous stage,
the furnace ignores the programmed HEAT RATE (except for "NO") and
automatically cools to the pre-set temperature. The time required for the cooling
stage is determined by the pre-set temperature. The lower the temperature,
the more time needed to cool down.
OPERATION
HEAT RATE TEMP HOLD TIME
STAGE 1
STAGE 2
STAGE 3
STAGE 4
10°F(6°C)
1600°F(871°C) 1:00
NO
NO
*
*
*
*
*Thoughanynumbermayappear,theunitisdeactivatedwhen“NO”isselectedfortheHEATRATE
20°F(11°C)
600°F(316°C) 30
16
SAMPLE THREE STAGE PROGRAM
(ProgramwithCooling)

ERROR CODES
NOTE:“Beeps”occurwhentheErrorCodeappearsontheMainDisplay
ERROR
CODE DESCRIPTION PROBABLE CAUSE
INVALIDENTRY
ERROR:STAGE,
HEATRATEand
TEMPlightsflash
Occurs when the HEATRATE is set to COOL but the TEMP of that stage is
higherthantheTEMPofthepriorstage(shouldbeheating)Thiswilloccur
whenaprogramisalreadyrunningandaparameterwaseditedinprocess
Er1
Occurswhenthetemperatureonthedisplayisoutsidetheallowablerange
atthetimetheuserpressedtheENTER/REVIEWkeyssimultaneouslytoset
theInfinitycalibrationtemperatureto1500°FIfthisoccursandisnotan
operatorerror,itindicatesthatthereisaproblemwiththethermocoupleor
thePCboardPressENTER/REVIEWtoturnofftheerrorindicationand
continuewiththeprogramPressSTART/STOPtoendtheprogram
TABLET
TEMPERATURE
CALIBRATION
ERROR
Er2
ELECTRONICS
MALFUNCTION
Er3 OccurswhenPCboardhardwaremalfunctions
OPEN
THERMOCOUPLE
Occursifthethermocoupleisopenortheconnectingwire(s)arebrokenor
disconnectedfromtheterminalboard
Er4
REVERSED
THERMOCOUPLE
Occursifthethermocoupleextensionwireshavebeenconnectedbackwards
totheterminalsontheprintedcircuitboardTheerrorwillbedetected5
minutesafterheatingprogramstartedThiserrorwillalsooccurifthe
programisstartedandthechamberdooriskeptopenfor5minutesorthe
triacisdefective,theheaterplatesaredefectiveorthereisaproblemwith
themainPCboard
Er5
17

ERROR CODES
ERROR
CODE DESCRIPTION PROBABLE CAUSE
SHORTED
THERMOCOUPLE
ORDEFECTIVE
HEATERPLATES
Occursifthethermocouplewiresareshortedortheheaterplatesare
defectivecausingInfinitytoachieveaHEATRATEoflessthan6%ofthe
maximumattainableHEATRATEwithfullpowerappliedtotheheater
platesfor5minutesThiserrorwillalsooccurifaprogramisrunning
andthedooriskeptopenformorethan5minutesorthetriacorthe
MainPCboarddevelopedaproblemduringaburnoutprocess
Er6
THERMAL
RUNAWAY
Er7
INVALIDENTRY
ERRORWHILEA
PROGRAMIS
RUNNING
Flashing
99:99
when
NIGHT
TIME
(DELAY
START)is
pressed
duringa
program
OccurswhentheHEATRATEinSTAGE2,3or4issetto“COOL”but
thecorrespondingTEMPisenteredtoheattoahighertemperature
thanthepreviousstage
Occurswhenthetemperaturehasexceeded2015°F(1102°C)for1
minuteifthehighesttemperatureprogrammedwaslessthan2000°F
(1093°C)Thisalsooccurswhenthetemperaturehasexceeded
2050°F(1121°C)for1minuteifthehighesttemperatureprogrammed
was2000°F(1093°C)orhigher
18

19
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