User Guide - Land Instruments
Contents
1. ABT S Aluminum Billet Thermometer User Guide Issue E February 2010 Part N is 198 184 Language English Copyright 2003 2010 Land Instruments International An AMETEK Company Lane IMPORTANT I NFORMATI ON PLEASE READ Important Health and Safety I nformation Equipment Operation Use of this instrument in a manner not specified by Land Instruments International may be hazardous Electrical Power Supply Before working on the electrical connections all of the electrical power lines to the equipment must be isolated All the electrical cables and signal cables must be connected exactly as indicated in these operating instructions If in doubt contact Land Instruments International Face and Eye Protection Suitable face and eye protection must be worn when working on hot vessels and ducts Special safety measures must be taken when working on a high pressure duct Protective Clothing Protective clothing must always be worn when working in the vicinity of hot vessels or ducts Storage The instrument should be stored in its packaging in a dry sheltered area Unpacking Check all packages for external signs of damage Check the contents against the packing note Return of Damaged Goods MPORTANT f any item has been damaged in transit this should be reported to the carrier and to the supplier immediately Damage caused in transit is the responsibility of the carrier not the supplier he damaged article for inspectio2. ABT Purge Adapter installation and recommended air supply requirements cross refer to the ABT Purge Adapter Installation User Supplement ABTP198 232 supplied with the accessory ABT S Page 21 Thermometer User Guide Page 22 ABT S LAD An AMETEK Company PRODUCT WARRANTY Thank you for purchasing your new product from Land Instruments International This Land manufacturer s back to base warranty covers product malfunctions arising from defects in design or manufacture The warranty period commences on the instrument despatch date from the Land Instruments International Ltd factory in Dronfield UK 36 MONTHS WARRANTY Building upon the reputation for reliability and longevity that System 4 and UNO thermometers have earned Land are delighted to be able to provide our customers with an industry leading 36 month warranty for the following products System 4 thermometers processors accessories and mountings and special instruments based on System 4 UNO thermometers accessories and mountings and special instruments based on UNO Application dedicated processors based on LANDMARK Graphic ABTS S and ABTS U FTS VDT S and VDT U e DTT e FLT5 A This 36 month warranty is provided as standard for all orders for the products listed above received from 1st May 2002 We believe that our customers expect us to set the standard in terms of performance quality reliability and value for money This 36 months warran
3. possibility of risk of damage to the product process or surroundings Refer to instruction manual This item or material can be recycled This item or material must be disposed of in accordance with the Waste Electrical and Electronic Equipment directive as applied by local regulations Protective Conductor Terminal Observe precautions for handling electrostatic discharge sensitive devices Thermometer User Guide ABT S User Guide Thermometer Contents 1 Introduction 1 1 1 About this Guide 1 1 2 About the ABT S Thermometer System 1 1 2 1 System Features 2 1 3 Unpacking the ABT S 2 1 4 Nomenclature 2 1 5 Specifications 3 2 Introduction to the ABT S 4 2 1 System Overview 4 2 2 Billet measurement problems and solutions 4 2 2 1 The effect of alloy type and surface finish 5 2 2 2 Temperature gradients and speed of response 6 2 2 3 Effect of heater type 6 2 2 4 Effect of billet diameter 6 2 3 Choice of measurement location 8 3 Installing the ABT S 9 3 1 Installing the Optic Head 9 3 2 Installing the Lightguide 10 3 3 Positioning the electronics unit 10 3 4 Electrical connections 14 3 4 1 Electrical connections to Landmark processors 14 3 5 Installing the processor 14 3 6 Connecting other Land thermometers to the system 16 4 Maintenance 18 4 1 Optic head 18 4 1 1 Replacement of the protection window 18 5 Operating the System 19 5 1 Configuring the processor 19 5 1 1 Landmark Graphic Snap Shot Configuration 19 5 1 2 Landm
4. Guide Landmark Graphic AE processor User Guide 1 4 Nomenclature The thermometer detail label is on the rear face of the thermometer Make a note of your thermometer Type and Serial Number in the space provided below This information is required to configure a Landmark processor to work with your thermometer Instrument type agr ss 1 T MET T T ILICE LIS e g ABT 300 600C L35 S Serial Number Id Id E LM M Page 2 ABT S User Guide Thermometer 1 5 Specifications Sms ote 95 NC INNEN HN application x5 C 9 F Stability time 2 C 4 F per year Humidity 0 to 99 non condensing Sealing To IP54 requirements Ambient temperature Optic head 165 C 330 F Light guide 200 C 392 F Electronics unit Specified O to 50 C 32 to 122 F Operating 10 to 60 C 14 to 140 F EN 50 082 2 immunity EN 50 081 1 emission IEC 1010 safety ABT S Page 3 Thermometer User Guide 2 Introduction to the ABT S The ABT S is a fast accurate non contact radiation thermometry system which is intended to replace thermocouples for the measurement of temperatures on the cylindrical surfaces of aluminium billets Unlike other infrared devices that have been used in this application the ABT S has been developed specifically for measurements on these oxidised surfaces It is therefore highly tolerant of changes in both alloy type and surface finish Please note that the ABT S is not recommended for measurements o
5. The ABT S uses Land s emissivity enhancement technology to raise the emissivity of the billet surface at the target location close to that of a black body source This means that in general it is not necessary to adjust the system settings 0 95 to take account of either alloy type or billet condition Exceptions to this are 1000 series alloys exhibit very bright surfaces and typically require an emissivity setting of around 0 85 Billets produced by extrusion Billets where the outer surface has been machined away after casting In all of the above cases apply the procedure for determining the optimum setting for a given billet type as described in Section 5 2 Longitudinal heat flow Radial heat flow N Radial temperature gradient Longitudinal temperature gradient i T i Surface e Radial distance from axis Distance along billet Fig 2 Typical billet heat transfer characteristics AD990193 ABT S Page 5 Thermometer User Guide 2 2 2 Temperature gradients and speed of response It is important to recognise that the temperature distribution in a taper heated billet is constantly changing The billet will lose heat to its surroundings but this takes place fairly slowly Heat transfer within the billet is much more important in the short term particularly when a taper has been applied Temperature gradients within the billet will exist radially surface to core longitudinally and r
6. able Colour 1 T T E Screen V V E Fig 9 Cable connection schedule 54970230 ABT S Page 13 Thermometer User Guide 3 4 Electrical connections Refer to the Processor Installation Guide for the connection schedule If the LMG AE processor is used as recommended extra input cards can be added to allow the use of up to four thermometers in total see section 3 6 The electrical connections for the thermometer power supply emissivity input and temperature output are made via the 6 way socket on the rear of the thermometer See Fig 7 Electrical connection to the thermometer must be made via the pre wired plug LAND Part N2 029 673 To connect the cable 1 Refer to Fig 8 Align the red marker near the lugs of the pre wired plug with the red marker above the keyway in the socket on the thermometer 2 Push the plug into the socket To disconnect the cable 1 Grip the castellated section of the plug 2 Pull the plug outwards to release the locking mechanism and disconnect the cable 3 4 1 Electrical connection to Landmark processors The thermometer derives its power supply emissivity input and temperature output from the processor via the 6 way cable The cable connection schedule is given in Fig 9 3 5 Installing the processor Refer to the relevant Landmark Processor Installation Guide Page 14 ABT S User Guide Thermometer H O lt Quenching Landmark Graphic AE Processor Ex
7. ark Classic and Basic Configuration 19 5 2 Determining the optimum emessivity setting for a given billet 20 6 Accessories 21 6 1 ABT Purge Adapter 21 ABT S Thermometer User Guide User Guide Thermometer 1 Introduction 1 1 About this Guide This guide provides the information necessary to install and operate a Land Aluminum Billet Thermometer ABT S 1 2 About the ABT S Thermometer System The Land ABT S system is an application dedicated product designed for the measurement of aluminium billet temperatures The system consists of a highly accurate non contact radiation thermometer coupled to a Land Landmark Graphic AE signal processor Fig 1 Aluminum Billet Thermometer AD990192 ABT S Page 1 Thermometer User Guide 1 2 1 System Features Unique Land emissivity enhancement technology provides high immunity to variation of alloy type and surface finish Extremely fast response allows checking of billet temperature characteristics during transfer from heater to press without additional delay A fibre optics light guide available in a range of lengths allows the thermometer electronics to be located remotely from heat and induction fields 1 3 Unpacking the ABT S The system comprises An ABT S thermometer consisting of optic head light guide and thermometer electronics unit A Landmark Graphic AE LMG AE processor Documentation binder containing ABT S User Guide Landmark processor Installation
8. cken the locking ring Detach the front plate Remove the old window and position its replacement in the recess in the front plate If necessary use a small amount of silicone sealant to hold the window in place during reassembly Note that the optic head can be installed with the mounting flat in any one of four orientations Each orientation is determined by aligning the pin on the front plate with the appropriate hole on the body of the optic head Select the orientation which best suits the particular installation Tighten the locking ring onto the front plate User Guide Thermometer 5 Operating the System 5 1 Configuring the processor Landmark processors offer a wide variety of features such as time functions and in the case of the Landmark Graphic AE multi channel and multi language support Irrespective of the type of processor used it must be configured for use with the ABT S thermometer Refer to the individual processor user guides for further details An emissivity value of 0 95 will usually give good results on 6000 series alloys See also Sections 2 2 1 and 5 2 5 1 1 Landmark Graphic Snap Shot Configuration From the Thermometer Type list for the channel to which the Aluminium Billet Thermometer is connected choose ABT S Settings for other Land aluminium extrusion products including AET should also be present If these thermometer types are not in the list then the Landmark Graphic processor is not equip
9. eading at one of the two positions shown in Fig 12 to minimise the differential between the two temperatures Note that the temperature gradient along the billet can exceed 1 C per cm 4 5 F per inch so accurate positioning is important Adjust the processor emissivity until the ABT S and the thermocouple reading agree For each degree Celsius that the ABT S reads low with respect to the thermocouple it will be necessary to reduce the emissivity setting by around 0 02 If an emissivity value greater than 1 00 is required a poor thermocouple contact has been made Check the validity of the emissivity setting on a few more billets by comparing the reference thermocouple reading to the ABT S display In trials optimum emissivity values between 0 88 and 0 98 have been obtained for billets of various commercial 6000 series alloys Slightly lower values 0 80 to 0 90 are expected on 1000 series alloys ABT S optic head Thermocouple measurement points x x Recommended position of reference thermocouple readings AD990200 ABT S User Guide Thermometer 6 Accessories 6 1 ABT Purge Adapter The ABT Purge Adaptor provides an effective air purge facility for the ABT S thermometer window It is intended to extend the intervals between the cleaning of the thermometer window in those installations where rapid contamination occurs It does not however make the cleaning process unnecessary For more detailed information regarding
10. ets or of incorrect installation inappropriate modification of product drilling holes in thermometer bodies etc inappropriate recalibration which results in product calibration being taken outside specification improper resealing of thermometer following parameter adjustment UNO FLT5 A etc attempted repair by a non Land authorised repair centre Land Instruments International Ltd Dronfield S18 1DJ England e Tel 44 0 1246 417691 e Fax 44 0 1246 410585 Email land infrared ametek co uk www landinst com AMETEK Land Inc 150 Freeport Rd Pittsburgh PA 15238 U S A Tel 1 412 826 4444 Email irsales ametek com www ametek land com For a complete list of our international offices please visit www landinst com
11. ided by both CE and IP classifications to this product may be invalidated if alterations or additions are made to the structural electrical mechanical or pneumatic parts of this system Such changes may also invalidate the standard terms of warranty Po 2 oe gt gt Dimensions Unless otherwise stated all measurements are given in millimetres and inches Copyright This manual is provided as an aid to owners of Land Instruments International s products and contains information proprietary to Land Instruments International This manual may not in whole or part be copied or reproduced without the expressed written consent of Land Instruments International Ltd Copyright 2007 2010 Land Instruments International DO NOT RETURN a damaged instrument to the sender as the carrier will not then consider a claim Save the packing with f you need to return goods for repair please contact our Customer Service Department They will be able to advise you on Caution hot surface Office Locations UK Dronfield Tel 44 0 1246 417691 E Mail land infrared ametek co uk Web www landinst com USA Pittsburgh AMETEK Land Inc Tel 1 412 826 4444 E Mail irsales ametek com Web www ametek land com For further details on all LAND Ametek offices distributors and representatives please visit our websites Signs and Symbols Used on Equipment and Documentation Caution risk of electric shock Caution attention to
12. n fresh aluminium surfaces such as the sawn end faces of the billet In the sections that follow some of the issues involved in temperature measurements on aluminium billets are examined Please consider this material carefully It will help you to get the best performance from your ABT S 2 1 System Overview The system has two main components the ABT S thermometer Fig 1 and a Landmark processor The ABT S thermometer consists of an optic head a fibre optics light guide and an electronics unit The optic head incorporates Land s unique non contact emissivity enhancement technology patents applied for The recommended processor is the Snap Shot version of the Landmark Graphic with special features to support the ABT S thermometer The processor retains its standard functions such as averaging peak picking and graphical display and can support up to four thermometers in total Combinations of ABT S and other Land thermometers are possible subject to certain restrictions 2 2 Billet measurement problems and solutions There are several factors that affect the infrared signature of aluminium billets Alloy type surface finish and the use of gas and or induction heating can all be influential The presence in many cases of a longitudinal temperature gradient or taper further complicates the measurement task rove 4 ABT S User Guide Thermometer 2 2 1 The effect of alloy type and surface finish
13. n by the carrier Return of Goods for Repair he correct returns procedure Any item returned to Land Instruments International should be adequately packaged to prevent damage during transit You must include a written report of the problem together with your own name and contact information address elephone number email address etc Return of Goods for Repair Form is available for download from our websites Lifting I nstructions Where items are too heavy to be lifted manually use suitably rated lifting equipment Refer to the Technical Specification for weights All lifting should be done as stated in local regulations Design and Manufacturing Standards The Quality Management System of Land Instruments International is approved to BS EN ISO 9001 for the design manufacture and on site servicing of combustion environmental monitoring and non contact temperature measuring instrumentation R E G S T E R E D IS0 9001 Approvals apply in the USA MANAGEMENT SYSTEM This instrument complies with current European directives relating to Electromagnetic Compatibility 89 336 EEC and Low Voltage Directive 73 23 EEC Operation of radio transmitters telephones or other electrical electronic devices in close proximity to the equipment while the enclosure doors of the instrument or its peripherals are open may cause interference and possible failure where the radiated emissions exceed the EMC directive The protection prov
14. otationally i e as a function of azimuth angle From the time heating stops the imposed temperature gradients will begin to decay See Fig 2 This internal heat transfer is relatively quick longitudinal gradients principally the applied taper will typically halve every few minutes The speed of the measuring device is therefore very important When using thermocouples for billet measurements the taper may fall by as much as 5 C 9 F in the time the billet spends at the checking station The ABT S has a much faster response than either thermocouples or the various multi wavelength infrared thermometers typically used at the die exit Typical accuracy of the ABT S on 6000 series alloys is 3 C 6 F which is comparable to the change in taper which could be expected to take place during a thermocouple measurement A single ABT S unit can measure the taper of a passing billet replacing a complete bank of thermocouples without delaying the loading of the billet into the container The ABT S processor temperature output is updated every 10ms For typical billet lengths 500mm 20in and transfer speeds 0 5m s 1 5ft s this allows up to one hundred temperature data points to be recorded per billet 2 2 3 Effect of heater type The type of heater used has been found to have little effect upon the performance of the ABT S 2 2 4 Effect of billet diameter The ABT S has been successfully tested on billet diameters from 175
15. ped to support the ABT S contact Land for advice Set the required emissivity as described in the Landmark Graphic AE User Guide It is advisable particularly in multichannel systems to set a suitable channel label e g PRESS 1 or BILLET Specific instructions are contained in the Landmark Graphic Snap Shot User Guide 5 1 2 Landmark Classic and Basic Configuration The required span either 300 C or 500 F and minimum temperature either 300 C or 600 F must be entered into the processor by following the procedures described in the individual processor User Guides Next set the required emissivity as described in the processor User Guide ABT S Page 19 Thermometer User Guide 5 2 Determining the optimum emissivity setting for a given billet An emissivity setting of 0 95 factory setting will give best performance on 6000 series alloys A setting of 0 85 will improve accuracy on 1000 series billets To determine the optimum setting for a stationary billet of given type alloy and surface finish proceed as follows 1 Fig 12 Page 20 Position the optic head 15 to 20mm 0 6 to 0 8in from the billet as shown in Fig 4 Ensure that the surface area under the optic head is typical of that billet type avoid heavily scratched or unusually black areas Take a reference thermocouple reading on the surface of the billet as close as possible to the optic head On taper heated billets it is generally better to take the r
16. pt it If the ABT S is being used as an aid to press control the preferred location for the optic head is between the holding position and the press This gives a representative measure of the billet s temperature characteristics immediately before extrusion Conversely if billet heater performance is to be measured then the optic head should be located before the holding position Most presses offer suitable locations for one or both modes of operation A schematic diagram showing a typical press and heater layout is given in Fig 3 The optimum position for the ABT S in each case is marked One final consideration in choosing a location is the precision with which the billet is located The optic head should be 15 to 20mm 0 6 to 0 8in from the billet surface at the point of closest approach so reproducible positioning of the billet is required see Fig 4 Page 8 ABT S User Guide Thermometer 3 Installing the ABT S o Read Section 2 0 of this User Guide before installing the thermometer 3 1 Installing the optic head Once a suitable location has been identified the optic head must be positioned as shown in Fig 4 The window surface should be 15 to 20mm 0 6 to 0 8in from and parallel to the billet surface at its point of closest approach The installation dimensions for the optic head are given in Figs 5 and 6 The recommended mounting method is via the two M6 tapped holes on the rear of the unit Alterna
17. r the thermometer it can be mounted using the two tapped holes on the mounting pad Either hole can be used for direct tripod mounting Choose a location for the thermometer which is free from excess vibration dirt and moisture It is recommended that in order to minimise the build up of dirt etc on the electrical and light guide connectors the thermometer is mounted such that these connectors are on the underside as shown in Fig 5 ABT S User Guide Thermometer 80 31 Mounting pad 2 holes 1 4in BSW 7 0 3 deep on 25 1 0 centres 25 1 0 55 2 2 156 6 1 Recommended orientation of thermometer to prevent build up of dirt etc on electrical and lightguide connectors N E m Minimum Bend E NN S Radius 50 0 2 0 Lightguide Length L10 1000 39 4 L20 2000 78 7 L35 3500 137 8 73 2 9 All dimensions in mm in Fig 5 Aluminium Billet Thermometer installation dimensions AD990196 ABT S Page 11 Thermometer User Guide Recommended mounting 2 off M6 threaded holes Bolts supplied Alternative mounting 4 off 6 5 0 25 holes 100 3 9 50 2 0 Fig 6 Optic head installation dimensions AD00078 Page 12 ABT S User Guide Thermometer Electrical connection socket on rear of thermometer Fig 7 Location of 6 way electrical connection socket AD990197 Lugs Keyway Marker Marker Fig 8 Connection of pre wired cable to the thermometer 4970229 Processor Pin N C
18. tively the optic head can be mounted via the four 6 5mm 0 25in holes in the front plate To prevent dirt collecting on the protection window angle the unit downwards as shown in Fig 4 15 to 20mm Optic head Billet Fig 4 Recommended orientation of Optic Head with respect to billet 45990195 ABT S Page 9 Thermometer User Guide 3 2 Installing the lightguide When installing the fibre optics light guide observe the following precautions 1 2 Ensure that the light guide is not be subjected to any tension or other undue force It is not necessary to secure the light guide to surrounding structures unless by leaving it hanging it will vibrate violently be a nuisance or a hazard Install the light guide as if it were a lightweight electrical cable and protect it if necessary The minimum bend radius is 50mmy 2in 3 3 Positioning the electronics unit When choosing a location for the electronics unit observe the following precautions 1 Page 10 If the thermometer is to be installed in a location where the ambient temperature is outside the range specified for the thermometer it must be mounted in a special cooling heating jacket available from Land Infrared If the thermometer is to be used in conjunction with a protection jacket refer to the Installation Guide provided with the jacket If the thermometer is to be installed in a location where the ambient temperature is within the range specified fo
19. to 225mm 7 to 9in Larger diameters will not present problems but excessively small billets may require adjustment of the system settings as per Section 5 2 Page 6 ABT S Thermometer User Guide T E Jopeo uonisod GuipjoH i 1ell 8 i i H H Jajeay Pll g L H i i peeu ndo s LaV bs x 043002 sseJd HulydeyUD Je3eau Jo pesn S Law 10 J9 Iq 104 pesn S Lgv 10 uonisod unuundo uonisod unuundo AD990194 Fig 3 Typical Aluminium Billet heater and press arrangement Page 7 ABT S Thermometer User Guide 2 3 Choice of measurement location The ABT S provides a superior alternative to banks of thermocouples in the measurement of billet tapers either immediately prior to extrusion or on exit from the heater When measuring prior to extrusion it is generally best to mount the optic head in the last suitable location before the loader This allows time for the local surface and core temperatures to equalise but avoids additional loss of taper In certain cases a considerable period of time i e one in which significant cooling takes place may elapse between a given billet exiting the heater and being loaded into the container This typically arises when the billet emerges from the heater before the previous press cycle has been completed In this situation the billet is usually moved to a holding position where it waits until the press is ready to acce
20. trusion Furnace Fig 10 Aluminium extrusion temperature measurement system incorporating ABT S AD990198 ABT S Page 15 Thermometer User Guide 3 6 Connecting other Land thermometers to the system The LMG AE processor can support up to four thermometers These can be any combination of Land ABT S and System 4 thermometers This flexibility allows the ABT S to form the basis of a complete extrusion thermometry package as shown in Fig 10 A single display presents information from up to four infrared thermometers in a variety of formats Additional input cards can be fitted to an existing LMG AE processor This procedure can be undertaken on site and takes only a few minutes Page 16 ABT S User Guide Thermometer Locating PTFE Locking pin O ring Hole washer ring Cable gland Front Window Body Mounting plate flat Fig 11 Optic head assembly details AD990199 ABT S Page 17 Thermometer User Guide 4 Maintenance 4 1 Optic head After initial installation make regular inspections of the optic head in order to establish a cleaning cycle If the optic head requires cleaning wipe both the window and the front plate with a soft cloth A little alcohol can be used to remove grease or oil if necessary 4 1 1 Replacement of the protection window If it is necessary to replace the protection window refer to Fig 11 1 UJ N BA Page 18 Loosen the three grubscrews in the locking ring Sla
21. ty as a part of an on going program of continuous improvement is just one way in which Land strive to maintain our position as the temperature measurement partner of choice 12 MONTHS WARRANTY All Land Instruments International products not provided with 36 months warranty see list above are provided with a 12 months warranty PRODUCT WARRANTY EXCLUSIONS FROM WARRANTY It should be noted that costs associated with calibration checks which may be requested during the warranty period are not covered within the warranty Land reserve the right to charge for service calibration checks undertaken during the warranty period if the cause is deemed to fall outside the terms of the warranty This Land manufacturer s warranty does not cover product malfunction arising from e incorrect electrical wiring connection to electrical power sources outside the rating of the product physical shock being dropped etc and impact damage inappropriate routing support physical shock amp strain protection etc of the lightguide Fibroptic thermometers only environmental conditions exceeding the IP NEMA rating of the product environmental conditions outside the Ambient Temperature Humidity and Vibration rating of the product environmental contamination solvent vapours deposition of airborne contamination cooling liquids of non neutral pH etc overheating as a result of interruption of water air flow through cooling jack
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