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KERR

Auto Electro-Melt Furnace

OPERATION MANUAL

AND PARTS LIST

Series 1258

Voltage

Item No.

120

31809

230

31808

KerrLab

Orange, CA 92867 USA

Fax: 714-516-7649

www.kerrlab.com

1

LT1258X2 • 8/19/02

Serial Number_________________________

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Содержание 1258 Series

Страница 1: ...ro Melt Furnace OPERATION MANUAL AND PARTS LIST Series 1258 Voltage Item No 120 31809 230 31808 KerrLab Orange CA 92867 USA Fax 714 516 7649 www kerrlab com 1 LT1258X2 8 19 02 Serial Number___________...

Страница 2: ...is equipment Safety Information 3 Alert Signals 3 Warnings 3 General Specifications 5 Environmental Conditions 6 Declaration of Conformity 6 Introduction 7 Unpacking 8 Installation 9 Operation 10 Oper...

Страница 3: ...tion to the alert signals throughout the manual Warnings To avoid electrical shock this furnace must 1 Use a properly grounded electrical outlet of cor rect voltage and current handling capacity 2 Be...

Страница 4: ...enic to humans Group 1 The insulating materials can be located in the lid the hearth collar and in the heating chamber of the product Tests performed by the manufacturer indicate that there is no risk...

Страница 5: ...Shipping Weight 6 8 lbs 3 0 kg Load Capacity Gold 930g 30 troy oz Silver 775g 25 troy oz Brass 680g 24 avoir oz Aluminum 227g 8 avoir oz Electrical Specifications Item No 31809 Item No 31808 Volts 12...

Страница 6: ...s and flicker EN 61326 1 Electrical equipment for measurement control and laboratory use Part I General Requirements Safety EN 61010 1 Safety requirements for electrical equipment for measurement cont...

Страница 7: ...res of the Kerr Auto Electro Melt Furnace which range from room temperature to 1120 C 2050 F are indicated on the built in controller The Digital Control allows the furnace to reach and main tain any...

Страница 8: ...Please inspect your Auto Electro Melt and accessories for damage Retain carton and packaging material for repack ing in the event your Electro Melt will need to be returned to Kerr for servicing If d...

Страница 9: ...ic etc so it will not support fire in the event of a molten metal spill Place the Electro Melt in a fume hood if the melting application will emit noxious or unpleasant fumes Electrical Connections Th...

Страница 10: ...raphite crucible collar Begin the Melt by closing the lid The chamber tempera ture will display When setpoint is reached power to ele ment will begin to cycle Initially temperature will over shoot but...

Страница 11: ...ting temperature of 14K yel low is 963 C 1765 F you would then set the temperature at 1020 C 1865 F Do not set your furnace temperature grossly above the melting point of your load This may cause boil...

Страница 12: ...will go out during an alarm situation PAGE button Allows you to select a new list of parame ters SCROLL button Allows you to select a parameter with in a list of parameters DOWN button Allows you to...

Страница 13: ...units can not be changed without entering the configuration Contact Customer Service if a different temperature unit is required OP output power demand IdHi Deviation high alarm Al List IdHi Deviation...

Страница 14: ...element will be shut OFF Over Temperature Protection OTP The OTP will be in effect during any alarm condition when the temperature of the furnace has deviated beyond the limit The Deviation High alarm...

Страница 15: ...eads Atun 3 Press the SCROLL button Display will read tunE 4 Press the UP or DOWN button to select on 5 Simultaneously press the PAGE and SCROLL buttons to return to the HOME DISPLAY The display will...

Страница 16: ...aler you may obtain the name of a Kerr Dealer convenient to you by calling Kerr at 1 800 KERR 123 or 1 714 516 7400 Product will not be accepted at the Kerr factory without a return goods authorizatio...

Страница 17: ...plate and the tip of the thermo couple is 4 1 16 1 16 Adjust the thermocouple bend as necessary 15 Replace the 4 feet and the 1 case screw Conditioning a New Element It is essential to preoxidize the...

Страница 18: ...18 Exploded View...

Страница 19: ...1831 Cordset 230 V 31830 Cordset 120 V 14003 Lid 31822 Heating Element 120 V 31823 Heating Element 230 V 22602 Insulators Chamber 6 Req d and Lid 5 Req d 22602 Insulators under Chamber 3 Req d 14000 H...

Страница 20: ...h may vary from state to state Heating elements and crucibles must be considered expendable and replacement can be expected The life of heating elements is affected by overheating and or contamination...

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