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BARNSTEAD THERMOLYNE CORPORATIONTypes F79300 & F79400Tube FurnacesOPERATION MANUALAND PARTS LISTSERIES 1080 & g Zone12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)12" (30.48 cm)24" (60.96 cm)24" (60.96 cm)24" (60.96 cm)24" (60.96 cm)24" (60.96 cm)24" (60.96 cm)24" (60.96 cm)24" (60.96 cm)24" (60.96 cm)ControlSingle Set Point AutoSingle Set Point AutoSingle Set Point AutoSingle Set Point AutoProgram. 2 ramp/2 dwellProgram. 2 ramp/2 dwellProgram. 2 ramp/2 dwellProgram. 2 ramp/2 grammableMulti-programmableSingle Set Point AutoSingle Set Point AutoSingle Set Point AutoProgram. 2 ramp/2 dwellProgram. 2 ramp/2 dwellProgram. 2 ramp/2 grammableLT1080X1 5/7/971
Thank you for buying this Thermolyne tube furnace. We believe that you will find it to be thebest furnace of its kind available. Please note that this manual contains important operatingand safety information. You must carefully read and understand the contents of this manualprior to the use of this furnace.Front LatchSideLatchSideLatchControllerHEAT LightPOWER SwitchHEAT SwitchFigure 1 F79300 Tube Furnace (F79400 Tube Furnace is similar, with two Front Latches)2
Table of ContentsSafety Information .5Alert Boxes .5Warnings .5Introduction .7Intended Use.7General Usage .7Principles of Operation .7General Specifications .8Materials of Construction .8Weight .8Dimensions .8Electrical .8Operating Characteristics for F79300.8Operating Parameters (Recommended).9Environmental Conditions .9Declaration of Conformity .9Installation .10Unpacking .10Site Selection .10Electrical Connections .10Process Tubes .11Installing Tubes .11Remote Operation of Furnace .12Single Setpoint Temperature Control (Automatic) .16Controls and Displays.16Power Switch: .16Furnace Power Indicator: .16Door Safety Switch: .16Control Buttons: .17Digital Readout: .17Adjusting Furnace Set Point Temperature .17Tuning: .17To tune your furnace:.18Setting Control Parameters .18Changing Temperature Indication .18High Alarm (Over-Temperature Protection OTP): .182 Ramp & 2 Dwell Programmable Models .20Controls and Displays.20Digital Readout .20Power Switch .21Furnace Power Indicator .21Door Safety Switch .21Parameters .21Tuning Your Controller .23To Initiate the Self Tune Feature .23Operating the Controller .24Single Set Point Operation .24Programming Controller .253
TABLEOFCONTENTSImplementing Programs .278 Ramp & 8 Dwell Multi-Programmable Models .29Controls and Displays.29Digital Readout .29Parameters .30Tuning Your Controller .33To Initiate the Tuning Feature .33Operating the Controller .34Single Set Point Operation .34Programming Controller .35Implementing Programs .39Furnace Atmospheres and Furnace Loading.41Preventative Maintenance .42Troubleshooting Tips .43Maintenance and Servicing .45Element Replacement.45Element Check .46Replacing The Bottom Element.46Replacing The Top Element .48Replacing The Thermocouple.50Replacement Parts List .52Ordering Procedures .53Wiring Diagrams for F79300 .54Wiring Diagrams for F79400 .57Exploded Views for F79300 .60Exploded View Key (F79300) .62Exploded Views for F79400 .63One Year Limited Warranty .684
Safety InformationYour Thermolyne Type F79300 or F79400 TubeFurnace has been designed with function, reliability,and safety in mind. It is your responsibility to install itin conformance with local electrical codes. For safeoperation, please pay attention to the alert boxesthroughout the manual.Alert BoxesWarningsWarningWarning alerts apply whenthere is a possibility of personal injury.CautionCaution alerts apply whenthere is a possibility of damage to the equipment.NoteNotes alert you to pertinentfacts and conditions.Hot SurfaceHot surfaces alert you to apossibility of personal injury ifyou come in contact with a surface during use or for a periodof time after use.To avoid electrical shock, this furnace must:1. Be connected to electrical service by a qualified electrician who ensures compatibilitybetween wiring, furn
Thank you for buying this Thermolyne tube furnace. We believe that you will find it to be the best furnace of its kind available. Please note that this manual contains important operating and safety information. You must carefully read and understand the contents of this manual prior to the use of this furnace. Side Latch Side Latch Front Latch Controller HEAT Light HEAT Switch POWER Switch .
