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Isotech 414 User Manual

Annealing furnace
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T h e c o mpany is always willing to give technical advice and assistance where appropriate .
Equally, because of the programme of continual development and improvement we reserve the
right to amend or alter characteristics and design without p ri o r n o tice. This publication is for
information only.
The NAMAS logo shown in the corner of the pages in this report/handbook is to inform readers
of our accreditation number only and does not imply endorsement by UKAS of the information
herein. Please refer to our Website for our latest UKAS Accredited Schedule.
ANNEALING FURNACE
MODEL 414
Isotech North America
158 Brentwood Drive, Unit 4
Colchester, VT 05446
Phone: (802)-863-8050
Fax:
(802)-863-8125
www.isotechna.com
sales@isotechna.com
Page 1 of 21
ANNEALING FURNACE
HANDBOOK
ISSUE 01 - 01/00

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  • Page 1 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 ANNEALING FURNACE MODEL 414 Isotech North America 158 Brentwood Drive, Unit 4 Colchester, VT 05446 Phone: (802)-863-8050 Fax: (802)-863-8125 www.isotechna.com sales@isotechna.com T h e c o mpany is always willing to give technical advice and assistance where appropriate .

  • Page 2: Table Of Contents

    ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 CONTENTS PAGE DESCRIPTION EMC Information 3 - 4 Health and Safety Instructions Guarantee Cautionary Note Unpacking and Initial Inspection Specification Introduction Annealing Furnace Operation Commissioning General Layout Eliminating Contamination During the Calibration of 15 - 16 High Temperature Thermometers Important Note...

  • Page 3: Emc Information

    ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 EMC INFORMATION This product meets the requirements of the European Directive on Electromagnetic Compatibility (E M C) 8 9 / 336/EEC as amended by EC Directive 92/31/EEC and the European Low Voltage Directive 73/25/EEC, amended by 93/68/EEC. To ensure emission compliance please ensure that any serial communications connecting leads (RS232 or RS422(485)) are fully screened.
  • Page 4 ISSUE 01 - 01/00 Warning: Internal mains voltage hazard. Do not remove the panels. There are no user serviceable parts inside. Contact your nearest Isotech agent for repair. Voltage transients on the supply must not exceed 2.5kV. Conductive pollution, eg. Carbon dust, must be excluded from the apparatus. EN61010 pollution degrees 2.

  • Page 5: Health And Safety Instructions

    Do not use the apparatus outside its recommended temperature range. If cased, do not return the apparatus to its carrying case until the unit has cooled. There are no u se r serviceable parts inside. Contact your nearest Isotech agent for repair.

  • Page 6: Guarantee

    INTERFERENCE WITH, OR FAILURE TO PROPERLY MAINTAIN THIS INSTRUMENT MAY INVALIDATE THIS GUARANTEE RECOMMENDATION The life of your ISOTECH Instrument will be prolonged if regular maintenance and cleaning to remove general dust and debris is carried out. Serial No:..........Date:.............

  • Page 7: Cautionary Note

    HANDBOOK ISSUE 01 - 01/00 CAUTIONARY NOTE ISOTECH PRODUCTS ARE INTENDED FOR USE BY TECHNICALLY TRAINED AND COMPETENT PERSONNEL FAMILIAR WITH GOOD MEASUREMENT PRACTICES. IT IS EXPECTED THAT PERSONNEL USING THIS EQUIPMENT WILL BE COMPETENT WITH THE MANAGEMENT OF APPARATUS WHICH MAY BE POWERED OR UNDER EXTREMES OF TEMPERATURE, AND ARE ABLE TO APPRECIATE THE HAZARDS WHICH MAY BE ASSOCIATED WITH, AND THE PRECAUTIONS TO BE TAKEN WITH, SUCH EQUIPMENT.

  • Page 8: Unpacking And Initial Inspection

    ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 UNPACKING AND INITIAL INSPECTION Our packing department uses custom designed packaging to send out your unit, but as accidents can still happen in transit, you are advised, after unpacking the unit, to inspect it for any sign of shipping damage, and confirm that your delivery is in accordance with the packing note.

  • Page 9: Specification

    ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 Green/yellow Earth (Ground) Brown Live (line) Neutral Blue Please ensure that your unit is correctly connected to the electricity supply. A Resi d u a l Cu rrent Devices sometimes referred to an RCD, ELCB or ground fault detector is included with the 220/240 V unit.
  • Page 10 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 Page 10 of 21...

  • Page 11: Introduction

    (961.78° C). At th e se t e m p eratures quartz is very porous and in reducing atmospheres the S.P.R.T.’s can quickly become contaminated. The Isotech Annealing Furnace offers a safe so l u tion for those who wish to anneal S.P.R.T.’s up to 1000° C.
  • Page 12 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 ANNEALING FURNACE The Annealing Furnace has two independent control systems, one for temperature control and the other for over-temperature protection. The furnace uses a Euroth e rm 2 1 1 6 over-temperature cut-off controller. On these models RESET button is located below t h e over-temperature controller.
  • Page 13 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 Momentarily press eith e r the UP or DOWN key once to display the alarm setpoint This value should be set to 50° C approximately above the operating controller temperature. To alter the value press and hold the UP key to raise the value or the DOWN key to lower the value.
  • Page 14 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 OPERATION Altering the Furnace Temperature, (Setpoint) Switch the unit on. The power switch is located on the power entry module, front panel. NOTE: Do not switch the unit off u n til the block has cooled. Preferably below 200° C but not above 600°...
  • Page 15 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 To alter the value press and hold the UP key to raise the value or the DOWN key to lower the value. The display will return to show the nominal block temperature wh en no key is pressed for 0.5 second.
  • Page 16 0.5mK equivalent. Instructions in the Isotech 962 and 96178 thermometer handbooks explain how to handle and keep clean the thermometers. It is imperative that procedures are f o l l o we d b ecause contaminants can penetrate a n d pass through physically-intact quartz sheaths at temperatures above 800°...
  • Page 17 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 AIRFLOW MACHINED CERAMIC PLUG SMALL QUARTZ TUBE FIXED ALUMINA FURNACE LINER QUARTZ WOOL KAOWOOL Page 17 of 21...
  • Page 18 ANNEALING FURNACE HANDBOOK ISSUE 01 - 01/00 Air percolates through the quartz wool oxidising any pollutants and rendering them harmless and unable to penetrate the quartz sheath of the thermometer. The c o m b i n ation of air-flow and positioning ensures that thermometers will not become contaminated at high temperature.
  • Page 19 Since the calibration of sensors at high temperatures can be fraught with difficulties, if any doubt exists, please consult Isotech for advice before embarki n g on any exercise in which there is a risk of contamination of the sensors you are trying to calibrate.
  • Page 20 Isotech by telephone, fax or e-mail (or the agent from whom you purchased the apparatus). On our help-line we are anxious to serve you and will swiftly be able to help you solve your problem, or deal with a technical enquiry.

  • Page 21: Annealing Furnace

    FRONT VIEW REAR VIEW AN NEA LI NG F URNACE Mod el 414 Controller Ov er-temperature Controller I SO T H E R MA L T EC H N O L O G Y LI MI TED PI N E G R O V E , SO U T H PO R T, PR 9 9A G , EN G LA N D...

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