Isotech ITL- M-17702 Bedienungsanleitung

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 1 of 37

HIGH

TEMPERATURE FURNACE

MODEL ITL- M-17702

This manual is issued under the authority of

Mr. J. P. Tavener, Managing Director

This manual refers to the following cells

Aluminium Freeze Point Cell

Silver Freeze Point Cell

Copper Freeze Point Cell

The company 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 prior notice. This publication is

for information only.

Isotech North America

158 Brentwood Drive, Unit 4

Colchester, VT 05446

Phone: 802-863-8050

Fax: 802-863-8125

[email protected]

www.isotechna.com

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 2 of 37

CONTENTS

PAGE NO:

Guarantee 3

EMC Information 4

Health and Safety Instructions 5

High Temperature Furnace, Certificate of Test 6

Sectional View of Transport Clamp 7

Cautionary Note 8

The High Temperature Furnace 9 - 10

Figure 1 - Sealed Metal Freezing-Point Cell 11

Figure 2 - Sealed Metal Freezing-Point Cell Body Dimensions 12

Figure 3 - High Temperature Furnace 13

Realising the Following Fixed Points: Aluminium & Silver 14 - 15

Figure 4 - Typical Melt/Freeze Sequence 16

Cell Handling 17 - 20

High Temperature Furnace Cell Assembly 21

Fault Finding and After Sales Services 22

Spare parts 23

Servicing the High Temperature Furnace 24

Thermometric Fixed Points - A Tutorial 25 - 27

Defining Fixed Points and Related Data 28

General Note on Isotech Metal Freeze Point Cells 29

Precautions to Prevent Devitrification of Quartz Envelopes 30

General Comment 31

Additional Services and Information 32

Appendix 1 33

Appendix 2 34

Appendix 3 35

Using the PC Interface 36

Cal Notepad 37 - 38

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 3 of 37

GUARANTEE

This instrument has been manufactured to exacting standards and is guaranteed for twelve

months against electrical break-down or mechanical failure caused through defective material or

workmanship. The guarantee does not cover failure caused by misuse. In the event of failure

covered by this guarantee, the instrument must be returned, carriage paid, to the supplier for

examination, and will be replaced or repaired at our option.

FRAGILE CERAMIC AND/OR GLASS PARTS ARE NOT COVERED BY THIS GUARANTEE

INTERFERENCE WITH THIS INSTRUMENT, OR FAILURE PROPERLY TO MAINTAIN IT, 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:...........................................................

www.isotechna.com

[email protected]

Fax: 802-863-8125

Phone: 802-863-8050

Colchester, VT 05446

158 Brentwood Drive, Unit 4

Isotech North America

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 4 of 37

mailto:[email protected]

EMC INFORMATION

This product meets the requirements of the European Directive on Electromagnetic

Compatibility (EMC) 89/336/EEC as amended by EC Directive 92/31/EEC. To ensure

emission compliance please ensure that any serial communications connecting leads

(RS232 or RS422 or 485) are fully screened.

The product meets the susceptibility

requirements of EN 50082-1, criterion

ELECTRICAL SAFETY

This equipment must be correctly earthed.

This equipment is a Class 1 Appliance. A protective earth is used to ensure the conductive

parts cannot become live in the event of a failure of the insulation.

The protective conductor of the flexible mains cable which is coloured green/yellow MUST

be connected to a suitable earth.

The Blue conductor should be connected to Neutral and the Brown conductor to Live (Line).

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.

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 5 of 37

HEALTH AND SAFETY INSTRUCTIONS

1. Read all of this handbook before use.

2. Wear appropriate protective clothing.

3. Operators of this equipment should be adequately trained in the handling of hot and

cold items and liquids.

4. Do not use the apparatus for jobs other than those for which it was designed, ie. the

calibration of thermometers.

5. Do not handle the apparatus when it is hot (or cold), unless wearing the appropriate

protective clothing and having the necessary training.

6. Do not drill, modify or otherwise change the shape of the apparatus.

7. Do not dismantle the apparatus.

8. Do not use the apparatus outside its recommended temperature range.

9. If cased, do not return the apparatus to its carrying case until the unit has cooled.

10. There are no user serviceable parts inside. Contact your nearest Isotech agent for

repair.

11. Ensure materials, especially flammable materials are kept away from hot parts of the

apparatus, to prevent fire risk.

12. Ensure adequate ventilation when using oils at high temperatures.

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 6 of 37

HIGH TEMPERATURE FURNACE

CERTIFICATE OF TEST

SERIAL NO:

Prior to despatch the following tests were carried out:

Insulation Test: M

ΩDate:

Earth Impedance: ΩDate:

Temperature cycle to maximum temperature: Date:

Communication's test (if applicable): PASS Date:

Laboratory Test at °C the profile was optimised

Main controller offset °C

Date:

Comments or concessions:

Controller parameters are listed in an appendix of the handbook.

The above serial no. furnace was tested and found to comply with the specifications.

Signature:

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 7 of 37

EVERY EFFORT HAS BEEN MADE TO PACKAGE THIS UNIT FOR TRANSPORT AND TO

ENSURE ITS GOOD CONDITION ON ARRIVAL AT ITS DESTINATION.

BEFORE COMMISSIONING IT IS NECESSARY TO REMOVE THE FURNACE CORE

TRANSIT CLAMP. TO AVOID DAMAGE PLEASE FOLLOW INSTRUCTIONS:

1. Slacken the central nut using the required tube spanner; the insertion of a

screwdriver through the tube spanner will prevent the central stud turning.

2. Remove the 3 screws securing the transit clamp to the top of the unit. Slacken each

screw equally by degrees and then completely remove the screws.

3. Gently lift the transit clamp vertically; a central tube which has secured the furnace

core will then slide out. The 3 screws should then be replaced in the top of the unit

4. Normal commissioning procedure may now be followed.

5. Keep the transit clamp and use it if the furnace is ever transported.

CAUTIONARY NOTE

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 8 of 37

PRODUCTS OF ISOTHERMAL TECHNOLOGY LTD ARE INTENDED FOR TECHNICALLY

TRAINED AND COMPETENT PERSONNEL FAMILIAR WITH GOOD LABORATORY

PRACTICE. IT IS EXPECTED THAT PERSONNEL USING THIS EQUIPMENT WILL BE

KNOWLEDGEABLE AND SKILFUL IN THE MANAGEMENT OF APPARATUS WHICH MAY

BE UNDER POWER OR UNDER EXTREMES OF TEMPERATURE (MOLTEN METALS,

CRYOGENIC LIQUIDS, ETC.) AND WILL APPRECIATE THE HAZARDS WHICH MAY BE

ASSOCIATED WITH, AND THE PRECAUTIONS TO BE TAKEN WITH, SUCH

EQUIPMENT.

ELECTRICAL INSTALLATION

THE FURNACES HAVE BEEN DESIGNED FOR CONVENIENT USE AND MAY BE

PLUGGED TO A STANDARD THREE-PIN 13-AMPERE SOCKET. THEY ARE SUPPLIED

SUITABLE FOR THE U.K. MAINS WHICH HAS LIVE, NEUTRAL AND EARTH LINES.

THIS EQUIPMENT MUST BE EARTHED

THE FURNACE IS SUPPLIED WITH A FUSE CARRIER FITTED WITH A NEUTRAL LINK.

THIS IS CLEARLY LABELLED AND IS FOR USE WITH A MAINS SYSTEM WITH A

NEUTRAL LINE, SUCH AS THE UK SUPPLY. IF THE FURNACE IS TO BE USED ON A

SYSTEM WHERE BOTH SUPPLY LINES ARE LIVE WITH RESPECT TO EARTH THEN

THE NEUTRAL FUSE LINK SHOULD BE REPLACED WITH A FUSE. A SPARE FUSE IS

SUPPLIED WITH THE FURNACE.

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 9 of 37

THE HIGH-TEMPERATURE FURNACE

The high-temperature furnace for realisation of metal freezing points is based on the heat-

pipe. It is furnished with two independent control systems, one for temperature control and

the other for over-temperature protection.

Proportional, integral and derivative adjustments for the controller Eurotherm 2604 and the

means for obtaining optimum settings, are described in the manufacturer's manual, which is

included as part of this manual. These parameters are initially adjusted to optimal conditions

for the Isotech Laboratory environment (ambient temperature of 20 ±2°C) in which the

furnace was tested prior to shipment.

The furnace has an over-temperature cut-off controller. Its purpose is to establish an upper

temperature limit after which all systems power will be shut down to protect the system from

the effects of possible operating controller failure.

In use:

a. The over-temperature controller should be set at a temperature approximately 50°C

higher than the operating controller setting.

b. To turn on system power at start up (or as required), it is necessary to actuate the

front panel off/on switch and also to depress the red reset button.

To adjust the over temperature trip point press the UP and Down keys to modify the SP

value to the desired temperature.

On furnaces with the 2216 controller fitted, the model type is shown on the controller at

power up, it is necessary to use the UP and DOWN keys to modify the value.

HIGH TEMPERATURE

FURNACE HANDBOOK

ISSUE 8 - 05/05

Page 10 of 37

A further safety device is provided in the furnace and is accessible by removing the top

panel and some fibre insulation. It comprises a gold wire (Potassium Heat Pipe only) in

series with the primary power circuit and is essentially in thermal contact with the furnace

core. Its function is to melt if both other control systems fail. This thermal fuse should not

be replaced after failure until the causative fault has been understood and corrected! The

terminal posts for fuse-connection are sited on the outer shell of the furnace assembly facing

the rear panel.

A section through the sealed type of metal freezing-point cell used in the furnace is shown in

Figure 1 and cell external dimensions are specified in Figure 2.

Figure 3 shows a section through the furnace (not to scale) together with the layout of the

controllers and power switch on the front panel.

The furnace is equipped with a thermometer pre-heating tube.

Dieses Handbuch passt für folgende Modelle

Inhaltsverzeichnis

Andere Isotech Ofen Handbücher

Isotech

Isotech M17705 Betriebsanleitung

Isotech

Isotech 17702W Betriebsanleitung

Isotech

Isotech 414 Betriebsanleitung

Isotech

Isotech ITL-M-17701 Betriebsanleitung

Isotech

Isotech 414 Betriebsanleitung

Isotech

Isotech 465 Betriebsanleitung

Isotech

Isotech 970-1 Bedienungsanleitung

Isotech

Isotech 414 Bedienungsanleitung

Beliebte Ofen Handbücher anderer Marken

Armstrong

Armstrong EG7H SERIES Bedienungsanleitung

Payne

Payne PG92ESA Leitfaden

SUPREME

SUPREME FEM10-M2301CM-A Montageanleitung

Ingersoll-Rand

Ingersoll-Rand S9V2B080D4VSAC/D Montageanleitung

Johnson Controls

Johnson Controls TM9T Leitfaden

Fluke

Fluke 9118A Bedienungsanleitung

Lennox

Lennox EL195UHE Elite Series Installations- und Betriebshandbuch

Intertherm

Intertherm M7RL Series Bedienungsanleitung

HDG

HDG Pelletmaster 15 Bedienungsanleitung

Pinnacle

Pinnacle Aero Bella AB-716C-QH Handbuch

Nortek

Nortek MG2S Series Bedienungsanleitung

VERDER

VERDER CARBOLITE GERO ABF 8/28 Handbuch

Goodman

Goodman GMV9 Handbuch

SUPREME

SUPREME SUP10-M2301C Montageanleitung

Dettson

Dettson AMT400B34-SM1PMA Montageanleitung

Evcon

Evcon DGD 60 MBH Bedienungsanleitung

Trane

Trane S8B1A026M2PSAB Montageanleitung

Hart Sceintific

Hart Sceintific 9113 Bedienungsanleitung