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Isothermal Technology Limited, Pine Grove, Southport, PR9 9AG, England Tel: +44 (0)1704 543830 Fax: +44 (0)1704 544799 Internet: www.isotech.co.uk E-mail: info@isotech.co.uk 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.
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Isothermal Technology Limited Pine Grove, Southport, Merseyside, PR9 9AG, England Telephone: +44 (0)1704 543830/544611 / Fax: +44 (0)1704 544799 Email: info@isotech.co.uk / Website: www.isotech.co.uk Page 2 of 32 Dual Furnace Models M17705 & M17706: 10–01/17...
ELIMINATING CONTAMINATION DURING THE CALIBRATION OF HIGH TEMPERATURE THERMOMETERS ....27 IMPORTANT NOTE ..................................28 STANDARD PLATINUM RESISTANCE THERMOMETER (SPRT) - ANNEALING ................ 29 MAINTENANCE ....................................30 ISOTECH I-CAL EASY ..................................31 PROGRAM EDITOR ..................................31 REVIEW ......................................32 Page 3 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
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.
If cased, do not return the apparatus to its carrying case until the unit has cooled. There are no user serviceable parts inside. Contact your nearest Isotech agent for repair. Ensure materials, especially flammable materials are kept away from hot parts of the apparatus, to prevent fire risk.
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.
The cable is colour coded as follows: COLOUR FUNCTION Green/yellow Earth (Ground) Brown Live (line) Blue Neutral Please ensure that your unit is correctly connected to the electricity supply. Page 7 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
220/240 V Power 1000 W Supply Frequency 50/60Hz Maximum Operating Temperature 1000°C Working Volume 450mm x 50mm diameter approx. Dimensions Height 880mm Width 400mm Depth 620mm Weight (nett) 40kg Page 8 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
INTRODUCTION The Annealing Furnace, model 414, is designed to heat, anneal and cool Standard Platinum Resistance Thermometers (SPRTs) prior to calibration. The temperature range of the furnace, from ambient to 1000°C, enables all types of SPRTs to be annealed. One of the duties of a calibration laboratory manager is to ensure that the SPRTs used in the Laboratory are fully annealed and still within specification.
Front View Main controller Ethernet socket USB socket Overtemperature controller Air flow sight glass Air flow adjustment knob Power switch Rear View 1. Power entry socket (plug in place) Page 10 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
5. If the controller is in the alarm condition and the complete furnace is powered down, the controller will “remember” the condition and will still need to be manually reset when powered up again Page 11 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
If the furnace has been in transit or not been used for several days then there may be an ingress of moisture into the insulation and other ceramics, the furnace may need to be “dried out” by running at a low value such as 100°C for a period of several hours. Page 12 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
Configuration changes to the controller require you log in as “Engineer” to perform these functions. These include: Change language selection Change °C to °F or K Change equipment clock and time zone Page 13 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
8. Select Yes and enter with SCROLL button to display the ENGINEER screen 9. When logged in as the ENGINEER, the equipment will not control the temperature of the heat source Page 14 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
PAGE button SCROLL button DOWN button UP button The HOME page: Furnace temperature Furnace setpoint Furnace setpoint box Data record symbol PAGE button SCROLL button Down button Up button Page 15 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
See section below for details on how to do this. To change the Setpoint of the equipment From the ISOTECH homepage, press the SCROLL button once, this will highlight the SETPOINT ADJUST box. Press the SCROLL button once more and this will allow adjustment of the setpoint via the UP/DOWN buttons.
5. Press the PAGE button to enter the SUPERVISOR menu 6. Scroll to the CHANNELS tab and enter with the SCROLL button 7. Scroll to the ISOTECH tab and enter with the SCROLL button 8. Scroll to CAL STATUS and enter with the SCROLL button 9.
6. The controller will now begin the tuning process During the tuning process, AT can now be seen to the left of the clock on the ISOTECH homepage. To disable the tuning feature during a tune, repeat the process above and select OFF. This will now disable the tune and install the previous values.
2. From the ENGINEER page scroll to NETWORK tab and enter with the SCROLL button 3. Scroll to INTERFACE and enter with the scroll button 4. Scroll to and adjust desired parameter using the pop out soft keyboard Page 19 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
1. Log in as the SUPERVISOR 2. Plug a suitable USB memory stick to the socket on the control panel. 3. Ensure the controller has accepted the memory stick by the icon in the lower left of the ISOTECH homepage.
The programs can either be created using the available software, or using the control interface on the equipment. The software can be downloaded at www.isotech.co.uk/downloads. Once created, a program can be sent directly to the instrument via the network connection or saved to a USB memory stick and imported from there via the USB socket on the controller panel Programmer display –...
Reset mode. Setpoints, rates, times etc. are set in the individual segment configurations Rate. A Ramp Rate segment is specified by a target set-point and the rate at which to ascend/descend to that set- point. Page 22 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
It is then set to DWELL at this temperature for a period of 30 minutes It is then set to STEP to 50.0°C It will then END the program and DWELL until switched off Page 23 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
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In a dwell segment, holdback is used to guarantee that a work piece stays at set-point within a specified tolerance for the specified dwell duration. Page 24 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
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4. Scroll to CH1 HOLDBACK and enter the desired parameter and enter with the SCROLL button 5. Scroll to CH1 HOLDBACK VAL and select the desired temperature, enter using the SCROLL button Page 25 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
The recrystallised alumina liner has a closed end and thermometers may be placed directly into the liner for annealing. However, for high temperature applications, the use of a supplementary kit is recommended, as described later. Page 26 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
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 followed because contaminants can penetrate and pass through physically-intact quartz sheaths at temperatures above 800°C.
Since the calibration of sensors at high temperatures can be fraught with difficulties, if any doubt exists, please consult Isotech for advice before embarking on any exercise in which there is a risk of contamination of the sensors you are trying to calibrate.
450°C and the thermometer cooled slowly to 450 °C. At 450 °C the thermometer is allowed to dwell for 30 minutes before being removed from the furnace and allowed to cool to ambient temperature. Page 29 of 32 Annealing Furnace model 414 Iss.4 – 05/17...
Therefore, we now prefer to work differently. With international communications so good these days, if anything goes wrong with the apparatus, or you need any other after sales service, please contact 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.
This application allows logging of data from the furnace. Additionally if a license is purchased it allows for fully automatic calibration including certificate printing and the calculation of coefficients. Refer to the Isotech I-Cal EASY handbook and help system for more details PROGRAM EDITOR This allows set point programs to be created on a PC and uploaded to the furnace.
It is also possible to archive instrument history files to a memory stick and to use this to transfer the data to the pc. The user name and password are both ‘history and they are not editable. These applications can be downloaded from the Isotech website http://www.isotech.co.uk/downloads Connection to the unit is via the Ethernet interface, configure the IP address to suit your network and then select that IP address in the software.
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