mufla barnstead f48000

Type 47900 & 48000Furnaces

OPERATION MANUALSeries 1284 & 1285

Single Setpoint Models F47910, F47910-26, F47910-33, F47914, F47915, F48010, F48010-26, F48010-33, F48014, F48015, F48015-60, F48018

Single Setpoint Models F47920, F47920-26, F47920-33, F47924, F47925, F48020, F48020-26, with OTP F48020-33, F48024, F48025, F48025-60, F48028

8 Segment Programmable F47920-80, F47920-26-80, F47920-33-80, F47924-80, F47925-80, Models with OTP F48020-80, F48020-26-80, F48020-33-80, F48024-80, F48025-80,

F48025-60-80, F48028-80

4 X 16 Segment F47950, F47950-26, F47950-33, F47954, F47955, F48050, F48050-26, Programmable Models F48050-33, F48055, F48055-60, F48058with OTP

LT1284X1 10/8/04

Safety Information ..............................................................................................................................................3Alert Signals..................................................................................................................................................3Warnings ......................................................................................................................................................3

Introduction..........................................................................................................................................................5Intended Use ................................................................................................................................................5General Usage..............................................................................................................................................5Principles of Operation ................................................................................................................................5

General Specifications ........................................................................................................................................6Type F47900 Models ....................................................................................................................................6Type F48000 Models ....................................................................................................................................6Environmental Conditions ............................................................................................................................7Declaration of Conformity ............................................................................................................................8

Unpacking ..........................................................................................................................................................9Installation ........................................................................................................................................................10

Site Selection..............................................................................................................................................10Electrical Connections ................................................................................................................................10

Operation, All Models ........................................................................................................................................11Power Switch ..............................................................................................................................................11Cycle Light ..................................................................................................................................................11Door Safety Switch ....................................................................................................................................11

Single Setpoint Models & Single Setpoint Models with OTP ..........................................................................12Single Ramp & Dwell ........................................................................................................................................178 Segment & 4 x 16 Segment Programmable Models with OTP ....................................................................20Furnace Loading ..............................................................................................................................................40Preventative Maintenance ................................................................................................................................41

General Cleaning Instructions ....................................................................................................................41Troubleshooting ................................................................................................................................................42Maintenance and Servicing ..............................................................................................................................45

To Replace a Heating Element ..................................................................................................................45To Replace a Chromel/Alumel Thermocouple ............................................................................................46To Replace Door Switches (Micro-Switch) ................................................................................................47To Realign Door Switches (Micro-Switch) ..................................................................................................48To Replace the Controller ..........................................................................................................................49

Replacement Parts............................................................................................................................................50Single Setpoint Models ..............................................................................................................................50Single Setpoint Models with OTP ..............................................................................................................508 Segment Programmable Models with OTP ............................................................................................514 x 16 Segment Programmable Models with OTP ....................................................................................51

Wiring Diagrams................................................................................................................................................52Ordering Procedures ........................................................................................................................................60One Year Limited Warranty ..............................................................................................................................64

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Table of Contents

Your Barnstead Thermolyne Type 47900 or48000 Furnace has been designed with function,reliability and safety in mind. It is your responsi-bility to install it in conformance with local electri-cal codes. For safe operation, please pay atten-tion to the alert signals throughout the manual.

This manual contains important operating andsafety information. You must carefully read andunderstand the contents of this manual prior tothe use of this furnace.

WarningsTo avoid electrical shock, this furnace must:

1. Use a properly grounded electrical outletof correct voltage and current handlingcapacity.

2. Be disconnected from the power supplyprior to maintenance and servicing.

3. Have the door switch operating properly.

To avoid personal injury:1. Do not use in the presence of flammable

or combustible materials; fire or explo-sion may result. This device containscomponents which may ignite such mate-rial.

2. Caution: Hot Surface - Avoid Contact. Toavoid burns, do not touch the exterior orinterior surfaces of this furnace duringuse or for a period of time after use.

3. Always wear safety glasses or a safetyshield and high temperature gloves whenloading or unloading the furnace. Longsleeved, fire retardant clothing and a fireretardant apron is also recommended.

4. Refer servicing to qualified personnel.

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Safety Information

WarningWarnings alert you to a possibility of per-sonal injury.

CautionCautions alert you to a possibility ofdamage to the equipment.

NoteNotes alert you to pertinent facts andconditions.

Hot SurfaceHot surfaces alert you to a possibility ofpersonal injury if you come in contactwith a surface during use or for a periodof time after use.

Alert Signals

WarningThis warning is presented for compliance withCalifornia Proposition 65 and other regulatory agen-cies and only applies to the insulation in this prod-uct. This product contains refractory ceramic, refrac-tory ceramic fiber or fiberglass insulation, which canproduce respirable dust or fibers during disassembly.Dust or fibers can cause irritation and can aggravatepre-existing respiratory diseases. Refractory ceramicand refractory ceramic fibers (after reaching 1000C)contain crystalline silica, which can cause lung dam-age (silicosis). The International Agency forResearch on Cancer (IARC) has classified refractoryceramic fiber and fiberglass as possibly carcinogenic(Group 2B), and crystalline silica as carcinogenic tohumans (Group 1).The insulating materials can be located in the door,the hearth collar, in the chamber of the product orunder the hot plate top. Tests performed by the man-ufacturer indicate that there is no risk of exposure todust or respirable fibers resulting from operation ofthis product under normal conditions. However, theremay be a risk of exposure to respirable dust or fiberswhen repairing or maintaining the insulating materi-als, or when otherwise disturbing them in a mannerwhich causes release of dust or fibers. By usingproper handling procedures and protective equip-ment you can work safely with these insulatingmaterials and minimize any exposure. Refer to theappropriate Material Safety Data Sheets (MSDS) forinformation regarding proper handling and recom-mended protective equipment. For additional MSDScopies, or additional information concerning the han-dling of refractory ceramic products, please contactthe Customer Service Department at BarnsteadInternational at 1-800-553-0039.

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SAFETY INFORMATION

WarningRefer servicing to qualified per-sonnel.

Intended UseThe Type F47900 and F48000 furnaces aregeneral purpose laboratory and heat treatingfurnaces. For optimum element life,Barnstead International recommends observ-ing these temperature ranges: from 100C(212F) to 1093C (2000F) continuous useor from 1093C (2000F) to 1200C (2192F)for intermittent use. Continuous use is operat-ing the furnace for more than 3 hours andintermittent use is operating the furnace forless than 3 hours.

All furnaces consist of: 1) a vented heatingchamber; 2) a temperature controller; and 3)a door safety switch for operator safety.

General UsageDo not use this product for anything otherthan its intended usage.

Principles of OperationThe furnace chamber is heated by open coilelectric resistance elements and is insulatedwith ceramic fiber insulation. The controller islocated under the furnace chamber and iswell insulated from the heat generated in thefurnace chamber. A door safety switchremoves power to the heating elementswhenever the furnace door is opened. Thetemperature is controlled by one of threetypes of controllers.

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Introduction

CautionDo not exceed operating temperaturesshown in General Specifications.Exceeding these limits will result inseverely reduced element life.

6General SpecificationsType F47900 ModelsDimensions in Inches (cm):Chamber: 5 (12.7) W x 4 (10.2) H x 6 (15.2) DOverall: 11.25 (28.6) W x 18 (45.7) H x 15.5 (39.4) DWeight: 37 lb. (16.8 kg)Electrical Ratings:

Volts: 220-240 100 120Amps: 4.2 7.5 8.3Watts: 1000 750 1000Frequency: 50/60 50/60 50/60Phase: 1 1 1Temperature:Operating Range: 2000F (1093C) continuous

2192F (1200C) intermittent

Type F48000 ModelsDimensions in Inches (cm):Chamber: 7 (17.8) W x 5 (12.7) H x 10 (25.4) DOverall: 13.25 (33.7) W x 19 (48.3) H x 19.5 (49.5) DWeight: 56 lb. (25.4 kg) (all models except -33)

58 lb. (26.3 kg) (-33 models only)

Electrical Ratings:

Volts: 220-240 120 208 100 220-240*Amps: 7.5 15 7.5 14.5 6.5*Watts: 1800 1800 1560 1450 1560*Frequency: 50/60 50/60 50/60 50/60 50/60*Phase: 1 1 1 1 1** -33 models only

Temperature:Operating Range: 2000F (1093C) continuous

2192F (1200C) intermittent

7GENERAL SPECIFICATIONS

Environmental ConditionsOperating: 17C to 27C; 20% to 80% relative humidity, non-condensing. Installation

Category II (overvoltage) in accordance with IEC 664. Pollution degree 2 in accordance with IEC 664. Altitude Limit: 2,000 meters.

Storage: -25C to 65C; 20% to 80% relative humidity

8Declaration of ConformityBarnstead International hereby declares under itssole responsibility that this product conforms with thetechnical requirements of the following standards(220-240 Volt Models Only):EMC: EN 61000-3-2 Limits for Harmonic Current

EmissionsEN 61000-3-3 Limits for Voltage

Fluctuations and FlickerEN 61326-1 Electrical Equipment for

Measurement, Control, andLaboratory Use; Part I: General Requirements

Safety: EN 61010-1 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use; Part I: General Requirements

EN 61010-2-010 Part II: Particular Requirements for Laboratory Equipment for the Heating of Materials

per the provisions of the Low Voltage Directive73/23/EEC, as amended by 93/68/EEC.

The authorized representative located within theEuropean Community is:

Electrothermal Engineering Ltd.419 Sutton RoadSouthend On SeaEssex SS2 5PHUnited Kingdom

Copies of the Declaration of Conformity are available upon request.

GENERAL SPECIFICATIONS

91. Visually check for any physical dam-age to the shipping container.

2. Inspect the equipment surfaces thatare adjacent to any damaged area.

3. Open the furnace door and removethe packing material from inside thefurnace chamber.

4. Vacuum the chamber prior to use toremove the insulation dust due toshipment. (The Type 48000 furnace issupplied with one ceramic shelf.)

5. Retain the original packaging materialif reshipment is foreseen or required.

Unpacking

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Site SelectionInstall furnace on a sturdy surface and allowadequate space for ventilation.

Electrical ConnectionsThe electrical ratings are located on the spec-ification plate on the back of the furnace.Consult Barnstead International if your electri-cal service is different than those listed on thespecification plate. Be sure the front powerswitch is in the OFF position before connect-ing the furnace to your electrical supply.

Installation

CautionBe sure ambient temperature does notexceed 40C (104F). The recommendedambient temperature is 17C - 27C.Ambients above this level may result indamage to the controller.

WarningTo avoid electrical shock, this furnacemust always use a properly groundedoutlet of correct voltage and current han-dling capacity.

CautionAllow at least six inches of spacebetween the furnace and any combustiblesurface. This permits the heat from thefurnace case to escape so as not to cre-ate a possible fire hazard.

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Power SwitchBoth the ON/OFF power switch and the digitaldisplay will illuminate when power is switchedON. The furnace will begin to heat to its con-troller's current setpoint. (See the instructionsfor your type of controller for information onchecking and setting the setpoint.)

Cycle LightThe amber cycle light will illuminate wheneverthe power is being applied to the heating ele-ments. The cycle light will turn on and off asthe furnace reaches the setpoint.

Door Safety SwitchThe door safety switch removes power fromthe heating elements when the door isopened. Open and close the door a fewtimes; note that the amber CYCLE light willswitch off when the door is opened. If thiscondition is not true, consult theTroubleshooting section before proceeding.This check must be done when the furnace isheating and the cycle light is illuminated.

Operation, All Models

WarningTo avoid personal injury do not use in thepresence of flammable or combustiblechemicals; fire or explosion may result.This device contains components whichmay ignite such materials.

Hot SurfaceCaution: Avoid Contact. To avoid burns,this furnace must not be touched on theexterior or interior surfaces during use orfor a period of time after use.

WarningTo avoid electrical shock, the door safetyswitch must be operating properly.

WarningAlways wear safety glasses or a safetyshield and high temperature gloves whenloading or unloading the furnace. Longsleeved, fire retardant clothing and a fireretardant apron is also recommended.

The single setpoint model furnace controlleris a single setpoint controller which provides asingle digital display to indicate the currentchamber temperature or setpoint temperature.This temperature controller features sensorbreak protection and self-tuning capability.

The single setpoint model w/ OTP furnacecontroller is a single setpoint controller whichprovides a single digital display to indicate thecurrent chamber temperature or setpoint tem-perature. This temperature controller featuressensor break protection, self-tuning capabilityand over temperature protection (OTP) withan additional OTP relay device.

Basic OperationWhen the controller is turned ON it will per-form a short self-test and then display themeasured value (process value) in the HOMEDISPLAY.

Buttons and IndicatorsOP1 (Output 1): Illuminates when the logicoutput is ON.

OP2 (Output 2): Illuminates when the relayoutput is ON (will go out during an alarm situ-ation).PAGE button: Allows you to select a new listof parameters.

SCROLL button: Allows you to select aparameter within a list of parameters.

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Single Setpoint Models &Single Setpoint Models w/OTP

NoteIf at any time you want to return to theHOME DISPLAY, simultaneously pressthe PAGE and SCROLL buttons.

Single Setpoint Models

Output 1

Manual

UP ARROW Button

Temperature Display

Display Window

DOWN ARROWButton

PAGE Button

SCROLLButton

Output 2

MAN

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DOWN button: Allows you to decrease a value.

UP button: Allows you to increase a value.

To View or Change the SetpointTo view the setpoint, press and release the UP orDOWN buttons. If you want to change the set-point, continue pressing until the desired setpointvalue is displayed and then release the button. Afew seconds after the button is released, the con-troller will accept the new value and revert to theHOME DISPLAY.

To View the Display UnitsFrom the HOME DISPLAY press the SCROLLbutton. The display will show the temperatureunits in C/F/K and then return to the HOME DIS-PLAY. (Call Customer Service if you require a dif-ferent temperature unit.)

To View the % Output PowerFrom the HOME DISPLAY press the SCROLLbutton twice. Press and release the UP or DOWNbutton to view the % output power. This value is aread-only value and cannot be changed.

Controller Parameters

Home displayC: Temperature units in Celsius. Temperatureunits can not be changed without entering theconfiguration. Contact Customer Service if a dif-ferent temperature unit is required.

SINGLE SETPOINT MODELS & SINGLE SETPOINT MODELS W/OTP

OP: % output power demand.

IdHi: Deviation high alarm.

Al ListIdHi: Deviation high alarm.

Atun ListtunE: One-shot autotune enable.

Pid ListPb: Proportional band (in display units).ti: Integral time in seconds.

td: Derivative time in seconds.

ACCS List Code: Access code (Code need-ed to enter or change the other configurationparameters which are not normally accessi-ble.) Not accessible.

AlarmsThe controller will flash an alarm message inthe home display if an alarm condition isdetected.

2FSH: Measured value full scale high alarm.

IdHi: Measured value deviation high alarm.

S.br: Sensor break: check that sensor is con-nected correctly.

L.br: Loop break: check that the heating cir-cuits are working properly.

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NoteThe following alarm messages are fac-tory default settings and may vary if youhave changed the configuration of your controller:

IDHi: = 50C2FSH = 1225C

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Ld.F: Heater Circuit fault: indication of eitheran open or short solid sate relay, a blownfuse, missing supply or open circuit heater.

Sensor Break ProtectionThis controller provides sensor break protec-tion in the event the thermocouple opens. Ifan open thermocouple condition occurs, thedigital display will blink S.br and the powerto the heating element will be shut OFF(Cycle light will extinguish).

Over-Temperature Protection(OTP)The OTP will be in effect during any alarmcondition when the temperature of the furnacehas deviated beyond the limit. The DeviationHigh alarm is the only alarm value which canbe changed. To change it, press the SCROLLbutton until IdHi appears on the display.Press the UP or DOWN button to select theOTP value you desire. We recommend avalue of 20 above your working temperatureto provide protection for your workload.

In addition to over-temperature protection,units containing a single setpoint controllerw/OTP feature a mechanical OTP relaydevice which disconnects power from the ele-ments in an alarm condition (only in furnaceswith OTP relay). See models listed on frontpage.


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TuningThis controller incorporates a self-tuning fea-ture which determines the optimum controlparameters for the best temperature accuracywith your load and setpoint. Use this featurethe first time you use your furnace and eachtime you change either your setpoint or thetype of load you are heating. BarnsteadInternational recommends you use this fea-ture to provide the best temperature accuracythe controller can attain. To use the tuningfeature:

1. Adjust the setpoint to your desiredvalue.

2. Press the PAGE button until displayreads, Atun.

3. Press the SCROLL button. Displaywill read, tunE.

4. Press the UP or DOWN button toselect, on.

5. Simultaneously press the PAGE andSCROLL buttons to return to theHOME DISPLAY. The display willalternately flash between tunE andthe HOME DISPLAY while tuning is inprogress.

6. The controller will then turn the heat-ing on and off to induce an oscillation.When the measured value reachesthe required setpoint the first cycle willend.

7. Tuning will be complete after twooscillation cycles and then the tunerwill turn itself off.

8. Normal control function will resumeafter the controller calculates tuningparameters.


NoteFurnace must be at ambient temperature before starting a tune.

NoteTune has completed when tunEstops flashing on display.

NoteStat and Sp.rr in Sp list must beset to OFF or tunE will not initiate.

FunctionsThis type of controller has single ramp and dwellprogramming capabilities. The Ramp and Dwellcan be configured to five different modes.

1. Mode 1 (Opt. 1) is a Ramp (if needed) tothe Setpoint temperature, a Dwell, andthen a cool down.

2. Mode 2 (Opt. 2) is the same as mode 1,except the controller continues to heat atthe Setpoint after the Dwell has complet-ed. (This mode does not cool down.)

3. Mode 3 (Opt. 3) is the same as mode 1,except the Dwell time includes the Ramp(if needed).

4. Mode 4 (Opt. 4) is the same as mode 2,except the Dwell time includes the Ramp(if needed).

5. Mode 5 (Opt. 5) is a Dwell (delay time)before the controller Ramps (if needed)to the Setpoint temperature.

Program Overview A program mode can be set by changing

the tm.OP variable to Opt. 1, Opt. 2,Opt. 3, Opt. 4, or Opt. 5.

A Ramp rate may be set by changing theSPrr variable to a value. The Ramprate units are in degrees per minute.

The Dwell time can be set by changingthe dwEll variable to the desired value.Dwell time units are in minutes.

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Single Ramp & DwellNoteThese instructions are used with the Single Setpoint models with OTP only(See models listed on front page).

Mode 1 (Opt. 1)

Mode 2 (Opt. 2)

Mode 3 (Opt. 3)

Mode 4 (Opt. 4)

Mode 5 (Opt. 5)

The program Status can be set by changingthe StAt variable to run or oFF. Thisvariable will start or stop the program.

Program Setup1. Press the PAGE button until the SP is dis-

played.

2. Press the SCROLL button once, SPrr(Ramp Rate) will be displayed, set thedesired Ramp rate with the UP or DOWNbuttons, if the ramp to setpoint feature isneeded. If the Ramp rate is not needed,then set to OFF with the UP or DOWN but-tons.

3. Press the SCROLL button once, tm.OP(Ramp & Dwell mode) will be displayed,select the desired mode with the UP orDOWN buttons. (Opt. 1, Opt. 2, Opt. 3, Opt.4, Opt. 5)

4. Press the SCROLL button once, dwEll willbe displayed, set the desired Dwell time withthe UP or DOWN buttons. (Dwell in minutes.)

5. Press the PAGE button until the Actual tem-perature is displayed.

Running the Program1. Press the SCROLL button until StAt is dis-

played, set to run with the UP or DOWNbuttons.

2. Press the PAGE button to display Actual tem-perature.

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SINGLE RAMP & DWELL CONTROLLER

NoteThe program must be stopped andthe controller must be displaying theactual temperature before beginningthe Setup.

Stopping the ProgramPress the SCROLL button until StAt is dis-played, set to oFF with the UP or DOWNbuttons.

Clearing the Flashing EndPress the PAGE and SCROLL buttons at thesame time.

Verifying a Running ProgramPress the SCROLL button until StAt is dis-played. The display will show run if the pro-gram is running, or oFF if it is not running.Press the PAGE button to display Actual tem-perature.

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SINGLE RAMP & DWELL CONTROLLER

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8 Segment & 4x16 SegmentProgrammable Models w/OTP

The 8 segment programmable controllerconsists of a microprocessor based three-mode PID (Proportional, Integral, Derivative),programmable temperature controller withover-temperature protection and appropriateoutput switching devices to control the fur-nace. The digital readout continuously dis-plays chamber (upper display) and setpoint(lower display) temperatures unless theSCROLL or PAGE button is depressed. Theprogrammable controller can be used as asingle setpoint controller or as a programma-ble controller. The 8 segment digital modelenables eight segments of programming.

The 4x16 segment programmable con-troller consists of a microprocessor basedthree-mode PID (Proportional, Integral,Derivative), programmable temperature con-troller with over-temperature protection andappropriate output switching devices to con-trol the furnace. The digital readout continu-ously displays chamber (upper display) andsetpoint (lower display) temperatures unlessthe SCROLL or PAGE button is depressed.The programmable controller can be used asa single setpoint controller or as a program-mable controller. The 4 program controllerhas four 16 segment programs.

Basic OperationWhen the controller is turned ON, it will per-form a short self-test and then change to theHOME DISPLAY. The HOME DISPLAYshows the measured temperature (processvalue) in the upper display and the desiredvalue (setpoint) in the lower display.

4x16 & 8 Segment Programmable Models with OTP

Output 1

PAGE Button

AUTO/MAN Button

Display Window

Upper Display

Lower Display

RUN/HOLD Button

UP ARROW Button

DOWN ARROWButton

SCROLLButton

NoteThe controller will return to the HOMEDISPLAY if left idle for more than a fewseconds.

NoteOnce the desired parameter has beenselected, depressing either the UP orDOWN button will change the parametervalue. In all cases, the value shown onthe display is the current working value ofthat parameter.

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To Change the SetpointIf you want to change the setpoint, press theUP or DOWN button until the desired setpointvalue is displayed in the lower display andthen release the button.

To View Display UnitsFrom the HOME DISPLAY press the SCROLLbutton. The display will briefly show the tem-perature units in C/F/K and then return to theHOME DISPLAY. (If you require a differenttemperature unit call Barnstead|ThermolyneCustomer Service.)

To View the % Output PowerFrom the HOME DISPLAY press the SCROLLbutton twice. This value is a read-only valueand cannot be changed.

Buttons and IndicatorsOP1 (Output 1): illuminates when the heatingoutput of the temperature controller is on.

AUTO/MAN: (Auto/Manual Mode): when thecontroller is in the automatic mode the outputautomatically adjusts to keep the temperatureor process value at the setpoint. The AUTOlight will illuminate. The manual mode hasbeen disabled through factory configuration.Call Customer Service for further information.

RUN/HOLD (Run/Hold button): Starts a program when pressed

onceRUN light illuminates.

8 SEGMENT & 4X16 SEGMENT PROGRAMMABLE MODELS W/OTP

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Holds a program when pressed againHOLD light illuminates.

Cancels hold and continues runningwhen pressed againHOLD light is offand RUN light illuminates.

Exits a program when the button is helddown for two secondsRUN and HOLDlights are off.

At the end of a program the RUN lightwill flash.

During holdback the HOLD light will flash.

PAGE button: allows you to choose a parameterfrom a list of parameters.

SCROLL button: allows you to choose a param-eter within a list of parameters.

UP button: allows you to increase the value inthe lower display.

DOWN button: allows you to decrease the valuein the lower display.

Controller ParametersHome DisplayC: measured temperature in Celsius.Temperature units can not be changed withoutentering the configuration. Contact CustomerService if a different temperature unit is required.

OP: % output power demand; displayed in lowerdisplay (cannot be changed).C.id: Controller identification number.


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PrG: Program number (displayed when a pro-gram is running; 4x16 programmable modelsonly.)IdHi: Deviation High Alarm

tunE: One-shot autotune enable.

run LiSt (Program Run List)PrG: Currently running program (only used on4x16 programmable models)StAt: Displays the program status [OFF, run (run-ning active program), hoLd (program on hold),HbAc (waiting for process to catch up), End (pro-gram completed)] in the lower display. The con-troller will default to OFF.

FASt: Fast run through program (no/YES). Thecontroller will default to no.

SEG.d: Flash active segment type in the lowerdisplay of the home display (no/YES). The con-troller will default to no.

ProG LiSt (Program Edit List)PrG.n: Press the UP or DOWN ARROW to selectthe program number (program number will be dis-played in lower display on 4x16 programmablemodels only.)Hb: Press the UP or DOWN ARROW to selectthe holdback type [OFF (disables holdback), Lo(deviation low holdback), Hi (deviation high hold-back) or bAnd (deviation band holdback)] for theentire program. The controller will default toOFF.

Hb.U: Press the UP or DOWN ARROW to selectthe holdback value (in display units).


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rmP.U: Press the UP or DOWN ARROW totoggle between ramp units (SEc, min or Hour).Controller will default to SEc.

dwL.U: Press the UP or DOWN ARROW totoggle between dwell units (SEc, min or Hour).Controller will default to SEc.

Cyc.n: Press the UP or DOWN ARROW to setthe number of program cycles (1 to 999 orcont). The controller will default to cont.SEG.n: Press the UP or DOWN ARROW toselect the segment number (1-8 in 8 segmentmodels, 1-16 in 4x16 models).tYPE: Press the UP or DOWN ARROW toselect the segment type [End (end of program),rmP.r = ramp rate (ramp to a specified setpointat a set rate), rmp.t = ramp time (ramp to aspecified temperature in a set time), dwEll (tomaintain a constant temperature for a settime), StEP (climb instantaneously from currentto specified temperature), cALL (to call a pro-gram as a subroutine, available only on 4x16programmable models)]. The controller willdefault to End. Other parameters used withtYPE include; tGt target setpoint), Rate (rate oftemperature increase) and dur (time to targetsetpoint or time to dwell).End.t: End segment type: dwELL (dwell contin-uous), rSEt (reset) and S OP (End SegmentOutput power level.

AL LiSt (Alarm List)IdHi: Deviation High Alarm.

Atun LiSt: (Autotune List)tunE: One-shot autotune enable.drA: Adaptive tune enable.


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drA.t: Adaptive tune trigger level in displayunits. Range = 1 9999.

Pid LiStG.SP (Gain Setpoint): Is the temperature atwhich the controller switches from the (SEt1)PID values to the (SEt 2) PID values.Pb: Proportional band in display units. (SEt 1)ti: Integral time in seconds. (SEt 1)td: Derivative time in seconds. (SEt 1)Pb2: Proportional band. (SEt 2)ti2: Integral time in seconds. (SEt 2)td2: Derivative time in seconds. (SEt 2)ACCS LiSt (Access List)Access Code (Code needed to enter or changethe other configuration parameters which arenot normally accessible.) Not accessible.

AlarmsThe controller will flash an alarm message inthe home display if an alarm condition is detect-ed.

IdHi: PV deviation high alarm.

2FSH: PV full scale high alarm.

LCr: load current low alarm.

HCr: load current high alarm.


NoteThe following alarm messages are factorydefault settings and may vary if you havechanged the configuration of your controller:

IDHi: = 50C2FSH = 1225C

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S.br: Sensor break: check that sensor is connect-ed correctly.

L.br: Loop Break: Check that the heating circuitsare working properly.

Ld.F: Heater Circuit Fault: indication of either anopen or short solid sate relay, a blown fuse, miss-ing supply or open circuit heater.

SSr.F: Solid state relay failure indications in asolid state relay: indicates either an open or shortcircuit in the SSR.

Htr.F: Heater failure: Indication that there is afault in the heating circuit: indicates either a blownfuse, missing supply or open circuit heater.

Sensor Break ProtectionThis controller provides sensor break protection inthe event the thermocouple opens. If an openthermocouple condition occurs, the digital displaywill Blink S.br and the power to the heating ele-ment will be shut OFF (Cycle light will extinguish).

Over-Temperature Protection(OTP)The OTP will be in effect during any alarm condi-tion when the temperature of the furnace hasdeviated beyond the limit. The Deviation Highalarm is the only alarm value which can bechanged. To change it, press the SCROLL buttonuntil idHi appears on the display. Press the UPor DOWN button to select the OTP value youdesire. We recommend a value of 20 above your


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working temperature to provide protection for yourworkload.

To Operate the Controller as aSingle Setpoint Controller

1. Switch the circuit breaker to the ON posi-tion. The setpoint temperature presentlyset in the controller will appear in thelower display. (The upper display indicatesthe actual chamber temperature.)

2. To change the setpoint, press the UP orDOWN button until the desired setpointvalue is displayed; then release the but-ton.

3. The furnace will begin to heat if the newsetpoint temperature is higher than thepresent chamber temperature.

Programming the ControllerThe controller is capable of varying temperature orprocess value with time through programming. Aprogram is stored as a series of segments andcan be run once, repeated a set number of timesor run continuously. To create a customized pro-gram using the controller parameters listed underController Parameters at the beginning of thissection, follow the procedures outlined in the pro-ceeding sections of this manual.

Creating a New Program or Editing anExisting Program (4x16 SegmentProgrammable Models Only)The same steps are used when creating a new


28

program and editing an existing program withthe exception being that a new program startswith all its segments set to End in the tYPEparameter. Temporary changes can be made tothese parameters when the program is in thehold state but permanent changes must bemade in the reset state. Follow the steps belowto create or edit a program.

1. Press the PAGE button until you reachthe program list (ProG LiSt).

2. Press the SCROLL button until displayreads, PrG.n.

3. Press the UP or DOWN button toselect a number for a new program orto edit an existing program.

Hb: HoldbackHoldback consists of a value and a type. If themeasured value lags behind the setpoint by anundesirable amount during a ramp or dwell, theholdback feature can be used to freeze theprogram at its current state (the HOLD light willflash). The program will resume when the errorcomes within the holdback value.

OFF: holdback is disabled.

Lo (Deviation Low Holdback): holds the pro-gram back when process variable deviatesbelow the setpoint by more than the holdbackvalue.

Hi (Deviation High Holdback): holds the pro-gram back when process variable deviatesabove the setpoint by more than the holdbackvalue.


29

bAnd (Deviation Band Holdback): combinesthe features of the high and low deviation hold-back in that it holds the program back when theprocess variable deviates above or below thesetpoint by more than the holdback value.

To set the holdback type:1. Press the PAGE button until you reach

the program list (ProG LiSt).2. Press the SCROLL button until display

reads, Hb.

3. Press the UP or DOWN button to togglebetween bAnd, Hi, Lo and OFF.

Hb U: Holdback ValueTo set the holdback value:


2. Press the SCROLL button until displayreads, Hb.U.

3. Press the UP or DOWN button to enter aholdback value.

rmP.U: Setting Ramp UnitsRamp units are time units which are used inrmP.r segments (ramp to a setpoint at degreesper second, minute or hour) and rmP.t seg-ments (ramp to setpoint in a specific amount oftime). See Setting the Segment Type for anexplanation on how to set a ramp segment.


2. Press the SCROLL button until displayreads, rmP.U.


NoteThe value set in this parameter is alwaysfor the entire program.

30

3. Press the UP or DOWN button to tog-gle between seconds, minutes andhours.

dwL.U: Setting Dwell UnitsDwell units are time units which are used indwELL segments (amount of time to remainat a specific temperature ). See Setting theSegment Type for an explanation on how toset a dwell segment.


2. Press the SCROLL button until displayreads, dwL.U.

3. Press the UP or DOWN button to tog-gle between seconds, minutes andhours.

CYC.n: Setting the Number of CyclesSet the number of times a group of segmentsor programs are to be repeated by followingthe steps listed below.


2. Press the SCROLL button until displayreads,CYC.n.

3. Press the UP or DOWN button toselect the number of cycles you wantto run or, press the DOWN button toselect cont. so the program will runcontinuously.


31

Setting the Segment TypeThere are five segment types. Proceed with thefollowing steps according to the type of segmentyou have selected.

rmP.r (Ramp)To ramp linearly at a set rate to a specified tem-perature:


2. Press the SCROLL button until displayreads,tYPE.

3. Press the UP or DOWN button until dis-play reads, rmP.r.

Steps 4 and 5 are used in the 4 program modelonly. If you are using an 8 segment program, skipto step 6.

4. Press the SCROLL button until displayreads Hb.

5. Press the UP or DOWN button to togglebetween bAnd, Hi, Lo and OFF.

6. Press the SCROLL button until displayreads, tGt.

7. Press the UP or DOWN button to set atarget setpoint.

8. Press the SCROLL button until displayreads,rAtE.

9. Press the UP or DOWN button to selecta value in ramp units (seconds, minutesor hours; set in the rmP.U parameter).

rmP.tTo ramp to a specified temperature at a set time:

1. Press the PAGE button until you reach


NoteThe program ramp rate is designed toreduce the heatup rate or cooling ratethat the furnace normally exhibits.When not using this feature, the fur-nace will operate at its maximumheating and cooling capability.

NoteWhen the program ramp has endedor has been reset, the furnace willcontinue to maintain setpoint temper-ature. It will not cool to ambient tem-perature unless the setpoint is set toambient temperature by the programor by the operator.

32

the program list (ProG LiSt).2. Press the SCROLL button until display

reads, tYPE.

3. Press the UP or DOWN button untildisplay reads, rmP.t.



6. Press the SCROLL button until displayreads, dur.

7. Press the UP or DOWN button toselect a time in ramp units (seconds,minutes or hours; set in the rmP.Uparameter.

dwEllTo maintain a constant temperature for a speci-fied time:


2. Press the SCROLL button until displayreads, tYPE.

3. Press the UP or DOWN button untildisplay reads, dwEll.

4. Press the SCROLL button until displayreads, dur.

5. Press the UP or DOWN button toselect a time in dwell units (seconds,minutes or hours; set in the dwL.Uparameter).


33

StEPTo climb instantaneously from the current tem-perature to a specified temperature.



3. Press the UP or DOWN button until thedisplay reads, StEP.



cALL (Running Multiple Programs; 4x16Segment Programmable Models Only)To call a program as a subroutine:If you want to run multiple programs, you canprogram the controller to call or link one pro-gram to another. This makes it possible to runone program at any time during another programand also return to the original program if desired.



3. Press the UP or DOWN button until dis-play reads, cALL.

4. Press the SCROLL button until displayreads, PrG.n.

5. Press the UP or DOWN button to selecta program number to be linked.


34

6. Press the SCROLL button until displayreads, CYC.n.

7. Press the UP or DOWN button toselect the number of cycles the linkedprogram is to be run.

EndTo end or repeat a program:



3. Press the UP or DOWN button untildisplay reads, End.

4. Press the SCROLL button until displayreads, End.t.

5. Press the UP or DOWN button to tog-gle between dwEll (an indefinitedwell), S OP (End Segment OutputPower) and rSET (reset).

Setting the Target Setpoint (4x16Segment Programmable Models Only)



3. Press the UP or DOWN button to setthe target setpoint temperature.


Running a Program (8 SegmentProgrammable Models)To run a program, press the RUN/HOLD button.(The RUN light will illuminate.)

Running a Program (4x16Segment ProgrammableModels)To run a program, press the RUN/HOLD button.(The RUN light will illuminate) or:

1. Press the PAGE button until you reachthe run list (run LiSt).

2. Press the SCROLL button until displayreads, PrG.

3. Press the UP or DOWN button to selectthe program number you want to run.

4. Press the RUN/HOLD button once tostart the program. (The RUN light will illu-minate.)

Holding a ProgramTo put a running program on hold, press theRUN/HOLD button. (The HOLD light will illumi-nate.)

Cancelling a ProgramTo cancel a program, hold the RUN/HOLD buttondown until the RUN and HOLD lights go off.

35


36

Tuning your FurnaceThe purpose of tuning your furnace is to matchthe characteristics of your controller to the char-acteristics of the process being controlled. Goodcontrol is evidenced by: stable, straight-line con-trol of the setpoint temperature with no fluctua-tions; No overshoot or undershoot of the set-point temperature; rapid restoration of the set-point temperature when external disturbancescause deviations from the setpoint.

This controller has automatic tuning featureswhich install optimum tuning parameters to givethe best temperature accuracy. No manual load-ing of tuning parameters is needed. We recom-mend that you tune the furnace to your specificapplication to obtain the best results. To providethe best temperature accuracy possible, usethese features when you install your furnaceand whenever you change your application orprocedure.

Tuning ErrorThe display will flash tu.ER if an error occursduring tuning. To clear the error and restart tun-ing, simultaneously press the PAGE andSCROLL buttons and follow the steps outlinedin Autotuning.

Gain Scheduling

G.SP: Gain SchedulingGain scheduling is the automatic transfer ofcontrol between two sets of PID values. The2416 controller does this at a presettableprocess value. Gain scheduling is used for diffi-cult control processes which show largechanges in their response time or sensitivity at


NoteDisplay will flash tu.ER if an erroroccurs during tuning. To clear theerror and restart tuning, simultane-ously press the PAGE and SCROLLbuttons and follow the steps outlinedin Autotuning.

NoteTo stop the tuning function, simulta-neously press the PAGE andSCROLL buttons.

37

high or low temperatures, or when heating orcooling.

The G.SP gain schedule setpoint is factory setat 700 C. The G.SP must be adjusted to200C from the desired setpoint temperaturewhen tuning.

Setting the Transfer Point If gain scheduling has been enabled, G.SP willappear at the top of the PID list. This sets thevalue at which the transfer will occur. When theprocess value is below this level, PID1 will beactive and when it is above, Pid2 will be active.Set a value between the control regions thatshow the greatest change to achieve the bestpoint of transfer.

TuningThe two sets of PID values can be manually setor automatically tuned. To tune automaticallyyou must tune above and below the transferpoint G.SP. If the process value is below thetransfer point G.SP, the calculated values willautomatically be inserted into the (SEt 1) setand if the process value is above G.SP, the cal-culated values will automatically be insertedinto the (SEt 2).

AutotuningThe Autotune feature automatically sets up thePID values in the control parameters to suitnew process conditions. To tune your furnace using autotuning:

1. Load your furnace with a load similar toyour normal load and close the door.

2. Set the setpoint temperature.


38

3. Press the PAGE button until the displayreads, Atun LiSt.

4. Press the SCROLL button until tunEOFF is displayed.

5. Press the UP or DOWN button to selecton.

6. Simultaneously press the PAGE andSCROLL buttons to return to the HOMEDISPLAY. The display will flash tunEwhile tuning is in progress.

Adaptive TuningAdaptive tuning continuously evaluates tuningparameters. Adaptive tuning automaticallyinstalls new values if better accuracy is possi-ble. Adaptive tuning should be used when thecharacteristics of a process change due to loador setpoint changes or, in a process that can nothandle the oscillation caused by a one-shottune.

To tune your furnace using adaptive tuning:1. Load your furnace with a load character-

istic of those you intend to heat in it.

2. Press the PAGE button until displayreads, Atun LiSt.

3. Press the SCROLL button until drAOFF is displayed.

4. Press the UP or DOWN button to selecton.

5. Press the SCROLL button until drA.t isdisplayed.


39

6. Press the UP or DOWN button untilthe desired trigger value is achieved.

For best results, use only the centertwo-thirds of the furnace chamber.

If you are heating a number of smallparts, spread them throughout thecenter two-thirds of the furnace cham-ber.

Keep objects away from the thermo-couple.


40

Use insulated tongs and mittens whenloading and unloading the furnace.

Always wear safety glasses.

Never come into contact with theheating elements. Hitting the ele-ments with tongs or laying the loadagainst them will cause the elementsto burn out prematurely.

This unit is equipped with a venting systemon the top of the furnace. This is for theremoval of fumes from the chamber of theunit.

Contamination is a major cause of elementfailure, therefore, remove all fume formingmaterial before heating. (e.g. clean cutting oilfrom tool steel).

Furnace Loading

CautionDo not overload your furnace chamber. Ifthe load is to be heated uniformly, itshould not occupy more than two-thirdsof the furnace chamber. Maintain at leasta 3/4 gap between the load and ele-ments. Failure to observe this cautioncould result in damage to the furnacecomponents.

Heating Elements

Thermocouple Sample Port

Thermocouple

41

Housekeeping is vital to your electric furnace KEEP IT CLEAN. Run your furnace up to871C (1600F) empty occasionally to burnoff the contamination that may exist on theinsulation and elements. Maintain 871C(1600F) for at least 4 hours to ensure com-plete ashing of foreign materials.

Element life is reduced somewhat by repeat-ed heating and cooling. If the furnace is to beused again within a few hours, it is best tokeep it at the operating temperature or at areduced level such as 260C (500F). Wehighly recommend that you replace the ther-mocouple periodically (once every sixmonths) to ensure temperature accuracy.

General Cleaning InstructionsWipe exterior surfaces with a lightly damp-ened cloth containing a mild soap solution.The Troubleshooting section is intended to aidin defining and correcting possible serviceproblems. When using the chart, select theproblem category that resembles the malfunc-tion. Then proceed to the possible causescategory and take necessary correctiveaction.

Preventive Maintenance

42

Problem Possible Causes Corrective ActionCycle light does not The furnace is not Reconnect furnace to powerilluminate. connected to power supply. supply.

Incorrect power source. Connect to correct powersource.

ON and OFF power switch Replace power switch.defective.

Defective cycle light. Replace cycle light.

Door switch malfunction. Realign or replace furnace door safety switch.

Furnace does not heat. No power. Check power source and fuses or breakers.

Defective electrical hookup. Repair electrical hookup.

Thermocouple has oxidized and Replace thermocouple.opened the circuit.

Controller malfunction. Replace controller.

Heating elements Replace defective elements.burned out.

Door switch malfunction. Realign or replace door safetyswitch.

Defective OTP relay. Replace relay.

Defective solid state relay. Replace relay.

Door switch does Door switch not functioning. Realign or replace door safetynot cut power to switch.heating elements.

Troubleshooting

43

Problem (cont.) Possible Causes (cont.) Corrective Action (cont.)Controller over-temp. Alarm output device malfunction. Replace controller.does not cut powerto furnace chamber. OTP relay malfunction. Replace relay.

Element shorted to ground. Replace faulty element.

Slow heatup. Low line voltage. Install line of sufficient size and voltage (isolate furnace from other electrical loads).

Heavy load in chamber. Lighten load in chamber to allow heat to circulate.

Wrong heating element. Install proper element.

Heating element burned Replace element.out.

Repeated element Overheating furnace. Keep furnace under maximum burnout. temperature. Closer supervi-

sion of control setting.

Heating harmful materials. Enclose material in container. Clean up spills in and on chamber. Ventilate chamber byleaving top vent slightly open when heating known harmful reagents.

Contamination from previous Replace insulation material.burnout.

Inaccurate temp. Oxidized or contaminated Replace thermocouple.readout. thermocouple.

Poor thermocouple connection. Tighten connections.

TROUBLESHOOTING

44

Problem (cont.) Possible Causes (cont.) Corrective Action (cont.)Improper loading procedures. Use proper loading

procedures.

Poor ventilation of control. Clear area around furnace control.

Thermocouple connections Reconnect thermocouple reversed. correctly.

TROUBLESHOOTING

45

To Replace a Heating Element1. Disconnect the furnace from the

power supply.

2. Remove the back terminal cover ofthe furnace. (Note placement andconnection of wires.)

3. Loosen the nuts on the terminalpoints of the four heating elementlead wires and remove the elementwires from the terminals.

4. Loosen the thermocouple hold-downclip and carefully remove the ther-mocouple from the rear of the fur-nace chamber.

5. Remove both the back of the furnaceand the blanket insulation.

6. Grasp the element lead wires andpull out both elements and the backchamber insulation.

7. Replace the defective element.

8. Reverse the disassembly procedure,making sure you thread all elementlead wires through the insulatingporcelain bushings on the back ofthe furnace and cut off any excesselement lead wire after securing theleads to the terminal points.

9. Reconnect the furnace to the powersupply.

10. Test the operation of the furnace.

Maintenance and Servicing

NoteThe ceramic hearth collar may crack.This is a normal condition and will notaffect the performance of the hearth col-lar.

WarningTo avoid electrical shock, this furnacemust always be disconnected from thepower supply prior to maintenance andservice.

Perform only maintenance described inthis manual. Contact an authorized deal-er or our factory for parts and assistance.

Refer servicing to qualified personnel.

46

To Replace a Chromel/AlumelThermocouple (All Furnaces)

1. Disconnect the furnace from thepower supply.

2. Remove both back covers. (Noteplacement and connection of wires.)

3. Remove the clip holding the thermo-couple in place (1 screw), andremove the two screws on the ther-mocouple terminals.

4. Remove the thermocouple. (Note:first pull the thermocouple straightout of the hole in the chamber toavoid damage to the insulation.)

5. Guide the looped ends of the newthermocouple through the plasticbushings with the red (-) lead to theright as you face the back of the fur-nace.

6. Insert the thermocouple straightthrough the hole in the chamber.

7. Secure the thermocouple with clipand screw. Connect the looped endsof the thermocouple to the terminalswith + to + (yellow) and - to -(red) wires. A polarity test of the ther-mocouple and lead wire is easilymade with the use of a magnet. Ona Chromel/Alumel thermocouple andlead wire, the non-magnetic wire ispositive (+) and the magnetic wire isnegative (-).

MAINTENANCE AND SERVICING

47

8. Replace both back covers.

9. Reconnect to the power supply.

10. Test the operation of the furnace.

To Replace Door Switches(Micro-Switch)


2. Remove the screws on the front dialand the screws and lock washers onthe back cover.

3. Slide the control section forward.(Note: do not pull excessively on theinternal wires.)

4. Disconnect the wires from the doorswitch. (Note the connection place-ment of the wires to the micro-switch.)

5. Remove the screws and nuts fromthe micro-switch.

6. Insert new micro-switches andsecure with the screws and nutsremoved in step 5.

7. Reconnect the wires to the new doorswitch.

8. To realign the door switches, see thefollowing section, To Realign DoorSwitches.


48

9. Slide the control section back andreplace the screws and lock washersdescribed in step 2.

10. Reconnect to the power supply.

11. Test the operation of the door switch-es. (See next section, step 8.)

To Realign Door Switches(Micro-Switch):


2. Remove the lower rear cover.

3. With the door closed, loosen thescrews on the micro-switch bracketand gently push the switch bracket for-ward until you hear a click.

4. Open and close the door; the switchshould click when the door is openedapproximately 3" and 1" to 2 beforethe door is closed. Slide the switchesbackward to increase the distance,forward to decrease the distance.

5. Tighten the two screws to secure theswitches. Check the operation of theswitch as described in step 4 aftertightening the screws.

6. Replace the back cover.

7. Reconnect to power supply.

8. To test the operation of the door


49

switch: move the power switch on, setthe control to a setting high enough tokeep the control from cycling, openand close the door; the cycle lightshould turn OFF when the door isopened approximately 3" and turnback ON 1 to 2 before the door isclosed.

To Replace the ControllerThe controller plugs into a panel mountingsleeve which should be left permanentlyinstalled in the furnace housing. To removethe controller, release the side clips and slidethe controller out. Do not attempt to dismantlethis unit further; replace it with a Thermolyneloaner or a new unit.


Single Setpoint Models F47910, F47910-26, F47910-33, F47914, F47915, F48010, F48010-26, F48010-33, F48014, F48015,F48015-60, F48018

Part number Description QTY. NotesCN71X96 Controller 1 F48010-33 only . CN71X73 Controller 1 All Models except F48010-33CAX94 Line Filter 1 -33 models only.EL479X1A Element 2 120 & 240 volt F47900 models only.EL479X2A Element 2 100 volt F47900 models only.EL480X1A Element 2 120 & 240 volt F48000 models only, except -33 models.EL480X2A Element 2 100 & 208 volt F48000 models only.EL1205X1 Element 2 -33 F48000 models only.FZX4 Line Fuse 2 100 & 120 volt F47900 models onlyFZX29 Line Fuse 2 100 & 120 volt F48000 models onlyFZX30 Line Fuse 2 208 & 240 volt models only.PLX76 Pilot Light 1 100 &120 volt models only.PLX82 Pilot Light 1 208 & 240 volt models only.RYX34 S.S. Relay 1 All ModelsSWX163 Door Switch 2 All ModelsSWX143 Power Switch 1 100 &120 volt models onlySWX144 Power Switch 1 208 & 240 volt models only.TRX136 Terminal Block 1 All ModelsTC1165X1 Thermocouple 1 All Models

Single Setpoint Models with OTPF47920, F47920-26, F47920-33, F47924, F47925, F48020, F48020-26, F48020-33, F48024, F48025,F48025-60, F48028

Part number Description QTY. Notes CN71X100 Controller 1 F48020-33 only . CN71X99 Controller 1 All Models except F48020-33CAX94 Line Filter 1 -33 models only.EL479X1A Element 2 120 & 240 volt F47900 models only.EL479X2A Element 2 100 volt F47900 models only.EL480X1A Element 2 120 & 240 volt F48000 models only, except -33 models.EL480X2A Element 2 100 & 208 volt F48000 models only.EL1205 X1 Element 2 -33 F48000 models only.FZX4 Line Fuse 2 100 & 120 volt F47900 models onlyFZX29 Line Fuse 2 100 & 120 volt F48000 models onlyFZX30 Line Fuse 2 208 & 240 volt models only.PLX76 Pilot Light 1 100 &120 volt models only.PLX82 Pilot Light 1 208 & 240 volt models only.RYX34 S.S. Relay 1 All ModelsRYX56 Mechanical Relay 1 100 & 120 volt models only.RYX57 Mechanical Relay 1 208 & 240 volt models only.SWX163 Door Switch 2 All ModelsSWX143 Power Switch 1 100 &120 volt models onlySWX144 Power Switch 1 208 & 240 volt models only.TRX136 Terminal Block 1 All ModelsTC1165X1 Thermocouple 1 All Models

Replacement PartsWarningReplace fuses with same typeand rating.

50

8 Segment Programmable Models with OTPF47920-80, F47920-26-80, F47920-33-80, F47924-80, F47925-80, F48020-80, F48020-26-80, F48020-33-80,F48024-80, F48025-80, F48025-60-80, F48028-80

Part number Description QTY. NotesCN71X97 Controller 1 -33 models only . CN71X74 Controller 1 All models except -33 modelsCAX94 Line Filter 1 -33 models only.EL479X1A Element 2 120 & 240 volt F47900 models only.EL479X2A Element 2 100 volt F47900 models only.EL480X1A Element 2 120 & 240 volt F48000 models only, except -33 models.EL480X2A Element 2 100 & 208 volt F48000 models only.EL1205X1 Element 2 -33 F48000 models only.FZX4 Line Fuse 2 100 & 120 volt F47900 models only.FZX29 Line Fuse 2 100 & 120 volt F48000 models only.FZX30 Line Fuse 2 208 & 240 volt models only.PLX76 Pilot Light 1 100 &120 volt models only.PLX82 Pilot Light 1 208 & 240 volt models only.RYX34 S.S. Relay 1 All ModelsRYX56 Mechanical Relay 1 100 & 120 volt models only.RYX57 Mechanical Relay 1 208 & 240 volt models only.SWX163 Door Switch 2 All ModelsSWX143 Power Switch 1 100 &120 volt models onlySWX144 Power Switch 1 208 & 240 volt models only.TRX136 Terminal Block 1 All ModelsTC1165X1 Thermocouple 1 All Models

4 X 16 Segment Programmable Models with OTPF47950, F47950-26, F47950-33, F47954, F47955, F48050, F48050-26, F48050-33, F48055, F48055-60,F48058

Part number Description QTY. NotesCN71X98 Controller 1 -33 models only . CN71X75 Controller 1 All models except -33 modelsCAX94 Line Filter 1 -33 models only.EL479X1A Element 2 120 & 240 volt F47900 models only.EL479X2A Element 2 100 volt F47900 models only.EL480X1A Element 2 120 & 240 volt F48000 models only, except -33 models.EL480X2A Element 2 100 & 208 volt F48000 models only.EL1205X1 Element 2 -33 F48000 models only.FZX4 Line Fuse 2 100 & 120 volt F47900 models only.FZX29 Line Fuse 2 100 & 120 volt F48000 models only.FZX30 Line Fuse 2 208 & 240 volt models only.PLX76 Pilot Light 1 100 &120 volt models only.PLX82 Pilot Light 1 208 & 240 volt models only.RYX34 S.S. Relay 1 All ModelsRYX56 Mechanical Relay 1 100 & 120 volt models only.RYX57 Mechanical Relay 1 208 & 240 volt models only.SWX163 Door Switch 2 All ModelsSWX143 Power Switch 1 100 &120 volt models onlySWX144 Power Switch 1 208 & 240 volt models only.TRX136 Terminal Block 1 All ModelsTC1165X1 Thermocouple 1 All Models

REPLACEMENT PARTS

51

52

Wiring DiagramsSINGLE SETPOINT CONTROL

53

WIRING DIAGRAMSSINGLE SETPOINT CONTROL W/OTP

54

WIRING DIAGRAMS8 SEGMENT PROGRAMMABLE CONTROL

55

WIRING DIAGRAMS4 X 16 SEGMENT PROGRAMMABLE CONTROL

56

WIRING DIAGRAMSSINGLE SETPOINT CONTROL

57

WIRING DIAGRAMSSINGLE SETPOINT CONTROL W/OTP

58

WIRING DIAGRAMS8 SEGMENT PROGRAMMABLE CONTROL

59

WIRING DIAGRAMS4 X 16 SEGMENT PROGRAMMABLE CONTROL

60

Ordering Procedures

Please refer to the Specification Plate for the complete model number, serial number, andseries number when requesting service, replacement parts or in any correspondence con-cerning this unit.

All parts listed herein may be ordered from the Barnstead International dealer from whomyou purchased this unit or can be obtained promptly from the factory. When service orreplacement parts are needed we ask that you check first with your dealer. If the dealercannot handle your request, then contact our Customer Service Department at563-556-2241 or 800-553-0039.

Prior to returning any materials to Barnstead International, please contact our CustomerService Department for a Return Materials Authorization number (RMA). MaterialReturned without an RMA number will be returned.

One Year Limited WarrantyBARNSTEAD INTERNATIONAL (BARNSTEAD) warrants that a product manufactured by Barnstead shall befree of defects in materials and workmanship for one (1) year from the first to occur of (i) the date the productis sold by BARNSTEAD or (ii) the date the product is purchased by the original retail customer (theCommencement Date). Except as expressly stated above, BARNSTEAD MAKES NO OTHER WARRANTY,EXPRESSED OR IMPLIED, WITH RESPECT TO THE PRODUCTS AND EXPRESSLY DISCLAIMS ANY ANDALL WARRANTIES, INCLUDING BUT NOT LIMITED TO, WARRANTIES OF DESIGN, MERCHANT ABILITYAND FITNESS FOR A PARTICULAR PURPOSE.

An authorized representative of BARNSTEAD must perform all warranty inspections. In the event of a defectcovered by BARNSTEADs warranty, BARNSTEAD shall, as its sole obligation and exclusive remedy, providefree replacement parts to remedy the defective product. In addition, for products sold by BARNSTEAD withinthe continental United States or Canada, BARNSTEAD shall provide provide free labor to repair the productswith the replacement parts, but only for a period of ninety (90) days from the Commencement Date.

BARNSTEADs warranty provided hereunder shall be null and void and without further force or effect if thereis any (i) repair made to the product by a party other than BARNSTEAD or its duly authorized service repre-sentative, (ii) misuse (including use inconsistent with written operating instructions for the product), mishan-dling, contamination, overheating, modification or alteration of the product by any customer or third party or(iii) use of replacement parts that are obtained from a party who is not an authorized dealer of BARNSTEAD.

Heating elements, because of their susceptibility to overheating and contamination, must be returned to theBARNSTEAD factory and if, upon inspection, it is concluded that failure is due to factors other than excessivehigh temperature or contamination, BARNSTEAD will provide warranty replacement. As a condition to thereturn of any product, or any constituent part thereof, to BARNSTEADs factory, it shall be sent prepaid and aprior written authorization from BARNSTEAD assigning a Return Materials Number to the product or part shallbe obtained.

IN NO EVENT SHALL BARNSTEAD BE LIABLE TO ANY PARTY FOR ANY DIRECT, INDIRECT, SPECIAL,INCIDENTAL, OR CONSEQUENTIAL DAMAGES, OR FOR ANY DAMAGES RESULTING FROM LOSS OFUSE OR PROFITS, ANTICIPATED OR OTHERWISE, ARISING OUT OF OR IN CONNECTION WITH THESALE, USE OR PERFORMANCE OF ANY PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CON-TRACT, TORT (INCLUDING NEGLIGENCE), ANY THEORY OF STRICT LIABILITY OR REGULATORYACTION.

The name of the authorized Barnstead International dealer nearest you may be obtained by calling 1-800-446-6060 (563-556-2241) or writing to:

2555 Kerper BoulevardP.O. Box 797Dubuque, Iowa 52001-0797 Phone: 563-556-2241 or 800-553-0039 Fax: 563-589-0516E-mail: [email protected]

mufla barnstead f48000

Documents

otp f48020

programmable models

f47900 models

f48000 models

single setpoint models

segment f47950

furnacesoperation manualseries

f48058with otplt1284x1