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Summary of Contents for KERR 1258 Series
- Page 1 KERR Auto Electro-Melt Furnace OPERATION MANUAL AND PARTS LIST Series 1258 Voltage Item No. 31809 31808 KerrLab Orange, CA 92867 USA Fax: 714-516-7649 www.kerrlab.com LT1258X2 • 8/19/02 Serial Number_________________________...
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Page 2: Table Of Contents
Table of Contents IMPORTANT INFORMATION This manual contains important operating and safety information. The user must carefully read and understand the contents of this manual prior to the use of this equipment. Safety Information ..............................3 Alert Signals..............................3 Warnings ..............................3 General Specifications ............................5 Environmental Conditions ..........................6 Declaration of Conformity ..........................6 Introduction................................7... -
Page 3: Safety Information
Warning Warnings alert you to a possibility of Your Kerr Auto Electro-Melt Furnace has been designed personal injury. with function, reliability, and safety in mind. It is your responsibility to install it in conformance with local electri- Caution cal codes. - Page 4 Refer to the appropriate Material Safety Data Sheets (MSDS) for information regarding proper handling and recommended protective equipment. For MSDS copies, or additional information concerning the handling of refractory ceramic products, please contact the Customer Service Department at 1-800-KERR-123 or 1-714-516-7400.
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Page 5: General Specifications
General Specifications Dimensions Exterior Width: 8.25” (209 mm) Depth: 6.50” (165 mm) Height: 13.50” (343 mm) Chamber Inside Diameter: 1.75” (45 mm) Inside Depth: 5.625” (145 mm) Crucible Inside Diameter: 1.375” (35 mm) Inside Depth: 4.125” (105 mm) Shipping Weight 6.8 lbs. -
Page 6: Environmental Conditions
ENERAL PECIFICATIONS Environmental Conditions Operating: 17°C to 27°C; 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: -25°C to 65°C; 20% to 85% relative humidity Declaration of Conformity Barnstead International hereby declares under its sole responsibility that this product conforms with the tech- nical requirements of the following standards:... -
Page 7: Introduction
Introduction Intended Use The Kerr Auto Electro-Melt Furnace is designed for con- venient electric melting of metals, providing melting tem- Caution peratures up to 1120°C/ 2050°F. It is an ideal metal melt- It is recommended that the graphite ing unit for casting as well as for alloying metals. -
Page 8: Unpacking
Retain carton and packaging material for repack- ing in the event your Electro-Melt will need to be returned to Kerr for servicing. If damage is found during your inspection contact the Kerr Dealer from whom you pur- chased the unit, for service. File claim with the delivery service if damage appears to have occurred during ship- ment. -
Page 9: Installation
Electrical Connections The electrical ratings are located on the specification plate on the furnace. Consult the Kerr dealer from whom you purchased the unit if your electrical service Caution is different than those listed on the specification plate. -
Page 10: Operation
Operation Wear Protective Clothing, consisting of gloves, lab coat or aprons, flame resistant hood, face shield and safety shoes. Your attire must protect you from burns in the event of a molten metal spill. Mount the Crucible in the Auto Electro-Melt chamber with the pouring spout opposite to the handle. -
Page 11: Operating Tips
PERATION Operating Tips • Inspect your crucible frequently for cracks, wear and deterioration. The crucible walls and base sloughs off with each use, causing the graphite crucible to become thinner. A leaking crucible can cause element and thermocouple failure. • Always seat crucible into the well so the shoul- der sets on the hearth collar. -
Page 12: Single Setpoint Controller
Single Setpoint Controller single setpoint model furnace controller is a single setpoint controller which provides a single digital display to indicate the current chamber temperature or setpoint temperature. This temperature controller features sensor Temperature break protection and self-tuning capability. Output 2 Display Output 1 Basic Operation... - Page 13 INGLE ETPOINT ONTROLLER To View the % Output Power From the HOME DISPLAY press the SCROLL button twice. Press and release the UP or DOWN button to view the % output power. This value is a read-only value and cannot be changed. Controller Parameters Home display °C: Temperature units in Celsius.
- Page 14 INGLE ETPOINT ONTROLLER Alarms The controller will flash an alarm message in the home display if an alarm condition is detected. Note The following alarm messages are 2FSH: Measured value full scale high alarm. factory default settings and may vary if you have changed the con- figuration of your controller: IdHi: Measured value deviation high alarm.
- Page 15 INGLE ETPOINT ONTROLLER Tuning This controller incorporates a self-tuning feature which determines the optimum control parameters for the best temperature accuracy with your load and setpoint. Use this feature the first time you use your furnace and each time you change either your setpoint or the type of load you are heating.
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Page 16: Maintenance And Servicing
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 authorization number from your Kerr Dealer. 2. Order genuine factory parts for self-servicing. -
Page 17: Conditioning A New Element
ELEMENT REPLACEMENT 1. Disconnect the power supply. 2. Set the furnace on its top. 3. Remove the 4 feet and 1 screw from the bottom of the unit. 4. Remove the 2 screws from the thermocouple terminal block and pull the thermocouple straight up. 5. -
Page 18: Exploded View
Exploded View... -
Page 19: Replacement Parts
Replacement Parts KERR Auto Electro-Melt Item No. 31809 - 120 V Item No. 31808 - 230 V Item No. Description 13996 Graphite Stirring Rod 29478 Graphite Crucible 31833 Control 31831 Cordset 230 V 31830 Cordset 120 V 14003 31822 Heating Element 120 V... -
Page 20: Limited Warranty
The customer assumes all risk and liabili- ty for damages arising out of the improper use of Kerr’s products. In no event shall Kerr be liable for any indi- rect, incidental, or consequential damages.
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