Temperature Calibrator
Contents
1. More w v Setup page 2 LT dG TEMPERATURE UNIT E FRESU HE SENSOR o To Te temp ni TE RESTO FRK TOP REST SET Edit GJ 001 Low voltage Low volt temp High voltage GJ High voltage temp Current 4 20mA gt Cold junc compens 13 03 2007 Low current Low curr temp High current High curr temp Compens mode Manual value Fig 12 Setup page 1 More Tur Input Kg Reference sensor Sensor oe Stability h criteria gt Access re code More Setup page 3 Setup page 2 SET follows TRUE Type of sensor Type Wattage Voltage gt Current RTD Wee mo m Select source Internal 1 Select source External Convert to temperature SENSOR UNDER TEST FEN UNDER TEST TENSOR UNDER TEST VO ov _ 01 Type of sensor En F2 Convert to temperature Yes No Thermo couples tres maren v L Convert to temperature 5 None ata Edit p Type of sensor Edit Convert to temperature VesNo 13 03 2007 FANGO UNDER TEST GP PH0 IEC iL prop Pt100 IS IEC Mill P ET ro IEC More E J od K y LL PH000 EC Cu50 M Cu LG cutoo M Cu More vw D T W U Xk Russian More A vB More vw Fig 132. Setup page 3 Setup page 2 Va More No FACTORY DEFAULTS Factory defaults 13 03 2007 Fig 14 Stirrer speed 13 03 2007 13 03 2007 List of contents 1 0 Introduction uussauuasaunnesnimigsanshikkiiomnnevadnivnnje 3 1 1 List of equipment received 4 2 0 Safety INSEFUGHIONS rinite 6 3 0 Operating the calibrator rxrrnnnnvvvvnnnnnnnnnnnnnvnnvnnnnnnnnnnnnnnnnee 11 Sil BeforeiUses Se 11 3 1 1 Setting up the dry block calibrator 12 3 1 2 Setting up the liquid bath calibrator 12 3 2 DUG USE u sans iaia iaia 16 3 3 KeybOards semelle een ak 17 3 4 DisplaVicuiara ti oiaiora ti dccus abbactland E AER 17 3 5 Connections onda ada reali 18 3 6 Calibrator functions Overview i 19 3 7 Setting the speed level of the stirrer liquid baths only 19 3 8 Selecting the SET temperature 20 3 9 Calibratonuuuausrarasas sleder ne reve era 20 3 9 1 Running a calibration eeerrereerrserereeeeen 20 3 9 2 Showing calibration results 22 3 TOSWITCH TEST he keane eee ner 22 3 10 1 Running a switch test 23 3 10 2 Showing switch test results 23 3 11AUTO STEP una aa a aa iii 24 3 11 1 Running an auto step calibration 24 3 11 2 Showing auto step test results 25 3 12 SETU Poea treaties ol al ale
3. To select READ To select TRUE To select SENSOR ee Press a function soft key to set the resolution 105447 05 27 q 4 44 9 9 28 1 resolution 0 1 resolution 0 01 resolution Press to accept the new setting and return to the Temperature resolution menu Setting the max SET temperature cf fig 11 Press to select Max SET temperature Press GJ A cursor appears in the Max SET temperature value Use the numeric keys to enter a new value or press to edit the existing value Press to accept the new setting and return to the Max SET temperature menu Converting electrical inputs to temperatures cf fig 11 Press to select the Conversion to temp menu Setting voltage or current input conversions from the electric signal to a temperature reading Press a function soft key to select the type of input Press a function soft key to select a parameter and start the editor Low input voltage or current Low input temperature that corresponds to the low level electrical signal High input voltage or current High input temperature that corresponds to the high level electrical signal Use the numeric keys to set a new value or press to edit the existing value 105447 05 9 9 3 12 5 Make the necessary changes and press to accept the new setting s and to return to the Conversion to temperatures menu Setting cold junction
4. 05 97 e Do not touch the items removed from the well they may be very hot e NEVER leave hot items which have been removed from the well unsupervised they may constitute a fire hazard The following routines must be observed before emptying the well 1 38 Switch off the calibrator using the power control switch pos 7 fig 1b Before handling the oil it must be cooled down to a temperature close to ambient Remove the sensor basket and clean it with disposable paper towels Remove the stirring magnet using the stirring magnet remover supplied and clean it with disposable paper towels Empty the well using the liquid drainage tube supplied Tilting the calibrator is not recommendable as it increases the risk of splashing oil all over the test area Any remaining oil in the well is cleaned up using disposable paper towels It is recommendable to use the optional cleaning oil when cleaning the well Warning e REMEMBER wear goggles when using the cleaning oil e Do not inhale vapours Proper ventilation must be used e Product information on cleaning oil must be carefully investigated before use 105447 05
5. compensation temperatures Press to select Cold junction compensation Press a function soft key to enable the editor To select compensation mode toggle between Automatic and Manual Note when the automatic mode is selected the calibrator measures the temperature in the T C connector and uses this for the cold junction compensation of the thermocouple To define a Manual temperature for the cold junction compensation This can be used when an external cold junction temperature can be established Make the necessary changes and press to accept the new setting s and return to the Cold junction compensation menu Setting the sensor input parameters B versions only cf fig 12 E 9 9 Press setup page 2 to select Input Selecting the reference sensor input Press to select Reference sensor Press a function soft key to enable the editor To select Internal reference source Results in displaying the reference as READ To select External reference source reference input on front panel Results in displaying the reference as TRUE and the Internal reference is displayed as READ a secondary value 105447 05 29 Check that the displayed serial number is the same as on the reference sensor otherwise the sensors coefficients need to be downloaded to the ATC This is done with the PC software JOFRACAL included on the CD Please read how to do in the chapter Reference Sensors in the JOFRACAL us
6. is filled with other fluids than those recommended 105447 05 13 10 11 12 14 Caution e Becareful not to overfill the well with oil The oil level rises several centimetres when the temperature is rising to maximum e Do not attempt to remove overflow of hot oil with the liquid drainage syringe as it might melt The sensor basket pos 4 is marked with an optimum oil level mark 100 When filling the well with oil and placing the sensors this mark must never be exceeded Check that the voltage setting shown on the power control switch pos 6 is identical to the mains voltage used Plug in the mains cable below the power control switch pos 7 and check that the earth connection is present Switch on the calibrator Follow the procedure section 3 7 to access the Stirrer control menu Follow the procedure section 3 8 to select the SET temperature according to the tables above Carefully monitor the oil level in the well as the temperature rises to prevent overflow Holes with a boring diameter matching the sensors to be calibrated must be drilled into the lid pos 8 before using it Place the calibration lid pos 8 onto the well when the SET temperature has been obtained Warning Ensure that the sensor is absolutely clean and dry as a few drops of water might cause a steam explosion Place the sensor pos 9 vertically into the well using the optional support rod set for sen
7. this is allowed to happen 6 Note The product liability only applies if the instrument is subject to a manufacturing defect This liability becomes void if the user fails to follow the instructions set out in this manual or uses unauthorised spare parts 105447 05 3 0 Operating the calibrator 3 1 Before use The ATC B version has a precision reference input To achieve the high precision a set of sensor coefficients relating to the specific sensor must be present in the ATC Before use of the ATC ensure that the correct coefficients in the ATC are equal to those from the sensors calibration certificate This is done with the PC software JOFRACAL included on the CD Please read how to do in the chapter Reference Sensors in the JOFRACAL user manual on the CD Warning e The calibrator must not be used for any purposes other 105447 05 than those described in this manual The calibrator has been designed for interior use only and should not be used in hazardous areas where vapour or gas leaks etc may constitute a danger of explosion For B versions only the sockets on the input module fig 3 must NEVER be connected to voltages exceeding 5V for the TC RTD sockets and 45V for the mA V sockets proportional to ground Thermostats must not be connected to any other voltage sources during test NEVER use heat transfer fluids such as silicone oil paste etc to help inserting sensors in dry block calibrators
8. 56 157 115V 5AT 60B315 230V 2 5AT 123690 e ATC 250 320 650 115V 10AF 60B302 230V 5AF 60B301 34 105447 05 If the fuses blow immediately after you have replaced them the calibrator should be returned to the manufacturer for service Slide the fuse box into place with the correct voltage turning upwards 105447 05 35 5 0 After use 5 1 Handling the dry block calibrator A Warning NEVER leave hot insertion tubes which have been removed from the calibrator unsupervised they may constitute a fire hazard If you intend to store the calibrator in the optional aluminium carrying case after use you must ensure that the instrument has cooled to a temperature below 100 C 212 F before placing it in the carrying case Caution e The insertion tube must always be removed from the calibrator after use The humidity in the air may cause corrosion oxidation to form on the insertion tube inside the instrument There is a risk that the insertion tube may become stuck if this is allowed to happen A Caution Cold surface e If the calibrator has reached a temperature below 0 C 32 F ice crystals may form on the insertion tube and on the well This in turn may cause verdigris to form on the material To prevent this from happening the insertion tube and the well must be dried This is done by heating up the calibrator to min 100 C 212 F and any water left will evaporate Remove the insulation plug w
9. Resetting the calibrator setup to factory defaults 6 Resetting to the factory default settings changes the setup to the initial settings cf fig 13 E Press setup page 3 to restore Factory defaults 32 Caution By pressing yes the following will be deleted Work orders Setup parameters Autostep results Switch test results 105447 05 E Press to restore Default factory settings 3 12 9 About the calibrator cf fig 13 E Press setup page 3 to select About This informs you about the calibrator type the software version installed and the date when it was last calibrated E Press or to return to the Setup menu 105447 05 33 4 0 Setting the mains voltage and replacing the fuses Warning e The fuse box must not be removed from the power control switch until the mains cable has been disconnected e The two main fuses must be identical and correspond to the chosen voltage O Locate the main fuses in the fuse box in the power control switch and check the voltage of the power control switch on off switch 230V 115V If the voltage of the power control switch differs from the line voltage you must adjust the voltage of the power control switch Open the lid of the fuse box using a screwdriver Remove the fuse box Remove both fuses and insert two new fuses These must be identical and should correspond to the line voltage e ATC 125 140 1
10. These fluids may penetrate the calibrator and cause damage or create poisonous fumes The calibrator must be kept free within an area of 20 cm on all sides and 1 metre above the calibrator The ATC 125 contains the gases R 1270 and R 704 under pressure The calibrator must under no conditions be stored or operated at ambient temperatures above 60 C 140 F 11 3 1 1 Setting up the dry block calibrator Follow the instructions below before using the calibrator cf fig 1a 1 3 1 2 Place the calibrator on an even horizontal surface where you intend to use it pos 1 Caution Do not use the instrument if the internal fan is out of order Ensure a free supply of air to the internal fan located at the bottom of the instrument pos 2 The area around the calibrator should be free of draught dirt flammable substances etc Check that the voltage setting shown on the power control switch pos 3 is identical to the mains voltage used Plug in the mains cable below the power control switch pos 4 and check that the earth connection is present Select an insertion tube pos 5 with a boring diameter matching the sensor pos 6 to be calibrated Ensure that both the well and the insertion tube are clean Insert the tube into the well Place the sensor pos 6 in the insertion tube pos 5 as shown in fig 1a Setting up the liquid bath calibrator Follow the instructions below before using the calibrat
11. Two way e Hold time defines the time in minutes the temperature is maintained after it is stable for each step e T step values must be set within the sensors permitted range Make the necessary changes and exit the editor by pressing Press to start the Auto step test While the step test is in progress you can press To review the Auto step result no editing is possible To pause the test and Force the test to jump a step previous or next regardless of the temperature step s stability To stop the Auto step test When the Auto step test is complete the results are displayed Press or to finish the test and store the results in the calibrator Showing auto step test results Press to select the Auto step menu Press to select Show results Press a function soft key to select one of the last five Auto step tests stored in the calibrator The data in the information field is the same as that displayed at the end of the Auto step test 105447 05 25 3 12 SETUP The setup of this calibrator is divided into nine functions Access to these functions is via three separate setup pages The function keys and are used to navigate through these pages and functions cf figs 10 11 12 and 13 For ease of use the instructions are divided into 9 sections each representing a function E Press to select the Setup menu 3 12 1 Loadinga setup cf fig 10 ee Press setup pa
12. User Manual Temperature Calibrator JOFRA ATC 125 140 156 157 250 320 650 A B Copyright 2005 AMETEK DENMARK A S 105447 UK 13 03 2007 Fig 1a Reference sensor if available 13 03 2007 Fig 1b Reference sensor if available 13 03 2007 Fig 2 heading information functions e N S 13 03 2007 Fig 3 Fuse 230V 5AF 115V 10AF 13 03 2007 Fig 4 Calibrator Overview A ATC 1558 AATC 155B 20 0 F gt ati E 20 07 na ees ce oe w SET SET TERPERATORE S SET TEMPERATURE temp 20 0 D 6 20 0 20 07 20 0 gt CALIBRATION Run calibration ee re Show calibration Run switch Furre TEST SETUP RI test HOW SUITCH TEST RESULTS Show results gp Aito TITO STEP R n aome step n auto step Show ERG AUTO STEP RESTS J results y 34 See Calibrator Overview cont 13 03 2007 20 0 20 0 AAC 155B sg EN gt x SET temp Calibration SET pe Switch test gt 3 gt Aut
13. alibrator JOFRA ATC 650 B Heating calibrator with input panel These instruments are temperature calibrators designed to calibrate temperature sensors and thermostats The ATC 125 156 157 320 650 A B instruments are all designed as dry block calibrators where as the ATC 140 250 A B instruments are designed to be used both as dry block calibrators and liquid baths Read this manual carefully before using the instrument and ensure that all safety instructions and warnings are observed 105447 05 3 1 1 List of equipment received When you receive the instrument the following should be enclosed 1 calibrator 1 mains cable 2 sets of test cables 2 black 2 red only B versions 1 CD ROM containing software package JOFRACAL 1 AMETRIM ATC DTI software package to adjust the ATC series 1 RS232 serial cable 1 tool for insertion tube 1 traceable certificate A versions 2 traceable certificates B versions 1 reference manual e 1 user manual ATC 125 156 157 320 650 A B only e 1 insertion tube user specified incl reference bore e 3 pcs insulation plugs for 6 10 16 mm sensors ATC 125 156 A B only or 3 pcs insulation plugs for 5 8 11 mm sensors ATC 157 A B only ATC 140 250 A B only dry block e 1 dry block kit metric consisting of 1 insertion tube multi hole metric with 11 bores incl reference bore 1 pcs insulation plug for multi hole metric ATC 140 A B only or e 1 dry block
14. can be uploaded with the JOFRACAL PC program This enables you to print out the results on a certificate 3 10 SWITCH TEST Note This Switch test function is for B versions only Switch test automatically locates the switch temperature of a thermostat Three parameters are required e Start temperature T e End temperature T2 e Rate of change in temperature slope rate Hysteresis of a thermostat can also be obtained here For ease of use the following instructions cf fig 8 are split into two sections 22 105447 05 3 10 1 3 10 2 Running a switch test Press to select the Switch test menu Press to select Run switch test Press a function soft key to enable the editor Note that T can be greater than T2 To edit the first set temperature T To edit the second set temperature T2 To determine hysteresis toggle between Yes a two temperature measurement and No a single temperature measurement To edit the slope rate The permitted range is 0 1 9 9 C min 0 2 17 8 F min Note the slope rate should be set so that the thermostat sensor can follow the temperature in the calibrator s well Make the necessary changes and exit the editor by pressing Press to start the switch test While the switch test is in progress you can press To show the current switch test results To review the switch test setup no editing is pos
15. e ne 26 3 12 1 Loading a setup a E T T 26 3 12 2 SAVING a Setup a 26 3 12 3 Adjusting the display contrast 27 3 12 4 Altering the temperature display settings 27 3 12 5 Setting the sensor input parameters B versions only 29 3 12 6 Altering stability criteria 31 3 12 7 Setting the access code 32 3 12 8 Resetting the calibrator setup to factory defaults 32 3 12 9 About the calibrator 33 4 0 Setting the mains voltage and replacing the fuses 34 5 0 After USeuunn mea ai 36 5 1 Handling the dry block calibrator 36 105447 05 1 5 2 Handling the liquid bath calibrator 37 105447 05 1 0 Introduction This user manual applies to the following instruments JOFRA ATC 125 A Cooling calibrator JOFRA ATC 125 B Cooling calibrator with input panel JOFRA ATC 140 A Cooling calibrator JOFRA ATC 140 B Cooling calibrator with input panel JOFRA ATC 156 A Cooling calibrator JOFRA ATC 156 B Cooling calibrator with input panel JOFRA ATC 157 A Cooling calibrator JOFRA ATC 157 B Cooling calibrator with input panel JOFRA ATC 250 A Heating calibrator JOFRA ATC 250 B Heating calibrator with input panel JOFRA ATC 320 A Heating calibrator JOFRA ATC 320 B Heating calibrator with input panel JOFRA ATC 650 A Heating c
16. een 10 and 15 Press to accept the value and return to the main menu screen Caution If the speed level chosen is too high the magnet will fall of and there will be no stirring in the oil With no stirring of the oil temperature gradients will emerge in the bath which will again affect the result of the calibration 4 105447 05 19 3 8 Selecting the SET temperature Follow the instructions to define the SET temperature cf fig 4 ee Press GJ A cursor appears in the SET temperature field E Use the numeric keys to enter a new value or to edit the existing value ES Press to accept the value and return to the main menu screen The calibrator now starts working towards the new SET temperature 3 9 Calibration Note This Calibration function is for B versions only This function enables you to perform automatic calibrations of multiple temperature sensors using identical or similar settings that are defined in work orders created in the JOFRACAL PC program For ease of use the following instructions cf fig 6 are split into two sections 3 9 1 Running a calibration E Press to select the Calibration menu Note Calibration information is available in several places throughout the calibration menus using Press to select the Run calibration menu 9 E Use and to scroll through the list and highlight an existing work order 20 105447 05 FE Press to continue the calibra
17. ended Heat transfer fluids must only be used in calibrators prepared as a liquid bath If these fluids are overheated they will create noxious or toxic fumes Proper ventilation must be used Product information on the fluid must be carefully investigated before use Do not handle hot oil If the oil is heated beyond the flash point it may constitute a fire hazard Always set the max SET temperature to a temperature 20 C below the flash point Do not pour cold oil into a hot well it might cause an explosion Do not pour water or any other liquid into a bath filled with hot oil E g only a few drops of water might cause a steam explosion if poured into 250 C hot oil Caution Hot surface This symbol is engraved in the grid plate Do not touch the grid plate the well or the insertion tube when the calibrator is heating up they may be very hot Do not touch the lid or the spill tray when the calibrator is heating up they may be very hot liquid baths only Do not touch the tip of the sensor when it is removed from the insertion tube well it may be very hot Do not touch the handle of the calibrator during use it may be very hot 105447 05 Caution Cold surface 105447 05 If the calibrator has reached a temperature below 0 C 32 F ice crystals may form on the insertion tube and on the well This in turn may cause verdigris to form on the material To prevent this from ha
18. eneity in the oil It is strongly recommended to leave the lid on during calibration Calibration without the lid may affect the temperature stability and homogeneity When heated to high temperatures the liquid bath calibrator should be placed under a exhaust hood to remove any vapors given off by the oil 105447 05 3 3 Keyboard The keys on the keyboard activate the following functions cf fig 2 Pos O 6 3 4 Description SOFT KEYS used to select menu options displayed in the LCD ENTER KEY used to accept selected options or entered values NUMERIC KEYS used to type in values INFORMATION KEY used to display the status of the parameters involved with the function currently selected ESC KEY escape key used to cancel a selection edit or return to previous menu Display The four separate areas within the display are used to indicate the following cf fig 2 OG S Description Informs you by providing a heading of the current function selected Indicates by use of an icon the status of the calibrator Provides the bulk of information and data available within the selection Shows you the functions of the soft keys 105447 05 17 3 5 Connections The instrument is designed for the following connections cf fig 3 Pos Description D Power control switch with a cable connection and on off switch It also contains the main fuse See section 4 0 for infor
19. er manual on the CD To change Convert to temperature function Yes sets the readout of the External reference as a temperature No sets the readout of the External reference in Q values To change SET follows TRUE toggle between On and Off This function enables you to reach an exact TRUE temperature measured by the External reference sensor Note that when ON is selected the calibrator will let the temperature be set by the TRUE temperature This means it will take longer before the calibrator indicates stable Note Set follows TRUE is only relevant when the External reference sensor is displayed in temperature units es Make the necessary changes and press to accept the new setting s and return to the Input menu Note that when SET follows TRUE is on it is indicated by a A symbol at the SET temperature Selecting the input from the sensor under test 9 Press to select Sensor under test 9 Press to select type of sensor 30 105447 05 Press a function soft key to select a specific type of sensor For voltage sensors 0 4V or 0 12V For a 4 20MA sensor For RTD sensors Pt10 Pt50 Pt100 Pt500 Pt1000 Cu50 or Cu100 For thermocouple sensors E J K L N R S T U or Xk For None no sensor connected Press a function soft key to select a specific sensor and return to the Sensor under test menu which now displays the selected sensor and the convert to te
20. ge 1 to select Load setup Note that loading a setup results in all the parameters in the setup menu being overwritten er Use the keyboard to select a calibrator setup number 1 9 E Press to load the selected setup A warning informs you that the active setup will be overwritten E Press if you are sure you want to overwrite the existing setup and return to the Setup menu 3 12 2 Saving a setup cf fig 10 E Press setup page 1 to select Save setup to registry E Use the keyboard to select a register number 1 9 e Press to save the current setup in the selected register and return to the Setup menu 26 105447 05 3 12 3 Adjusting the display contrast cf fig 10 E Press setup page 1 to select Display contrast E Press to make the display darker or amp to make the display lighter ES Press to accept the new setting and return to the Setup menu 3 12 4 Altering the temperature display settings cf fig 11 E Press setup page 1 to select the Temperature menu Use the function soft keys to set the parameters displayed Setting the temperature units e Press to select Unit e To select the temperature units press To select Celsius To select Fahrenheit To select Kelvin E Press to accept the new setting Setting the temperature resolution cf fig 11 ES Press to select Temperature resolution E Press a function soft key to select the temperature type To select SET
21. hile heating up It is very important that humidity in the well and insertion tube is removed to prevent corrosion and frost expansion damages 36 105447 05 e Do not touch the well or insertion tube when these are below 0 C 32 F they can create frost bites The following routine must be observed before the insertion tube is removed and the instrument switched off 1 If the calibrator has been heated to temperatures greater than 100 C 212 F you must wait until the instrument reaches a temperature less than 100 C 212 F before you switch it off 2 If the calibrator has reached a temperature less than 0 C 32 F it should be heated to a temperature of 100 C 212 F applies only to the ATC 125 140 156 157 AB models Remove the insulation plug while heating up 3 Switch off the calibrator using the power control switch pos 1 fig 3 4 Remove the insertion tube from the calibrator using the tool supplied 5 Optional Store the calibrator in its protective aluminium carrying case 5 2 Handling the liquid bath calibrator It is not recommendable to leave the oil in the well for long term storage It is recommended to remove the oil from the well before transportation of the calibrator Warning e Do not handle hot oil e Do not attempt to remove overflow of hot oil with the liquid drainage tube as it might melt e Do not leave any oil in the spill tray as it might leak into the calibrator 105447
22. ibration information CALIBRATION INFO Basic parameters As found As left As found Ambient temperature 23 0 C ESC Back 13 03 2007 more Back to calibration more CALIBRATION INFO Notes Ensure that the bore in the insert fits the sensor Connect the sensor under test S U T gt and the reference sensor to the the input panel ESC Back Back to calibration More CALIBRATION INFO Sensor under test ID 6 mm critical process sensor Serial No 0124598 00325 Type RTD 4 wire Pt100 IEC Measurement By RTD input Tag No 4569 Tag location No 13 ESC Back more Back to calibration More Switch Test Overview No Finish oh ei Show result SUIT Enst 44 Run switch Close 4 No shift Open S 50 0 itystoresta Error Back to sw test Back to result 13 03 2007 Auto step Overview No Stop Finish v Auto step result SHOW AUTO STEP RESULTS F7 F1 GB F5 Auto step AUTO STEP SETUP ca setup af Finish i esi lt lt Back to ln result 13 03 2007 Setup page 1 Display contrast gt Less More gt Setup page 1 cont More v Setup page 2 13 03 2007 mem Temperature EP Setup page 1 cont Resolution Max SET temp Convert to
23. kit inch consisting of 1 insertion tube multi hole inch with 11 bores incl reference bore 1 pcs insulation plug for multi hole inch ATC 140 A B only 4 105447 05 ATC 140 250 A B only liquid bath e 1 liquid bath kit consisting of 1 sensor basket 2 lids for transportation calibration 1 stirring magnet 1 stirring magnet remover 1 liquid drainage syringe 1 silicone oil 105447 05 2 0 Safety instructions Read this manual carefully before using the instrument In order to avoid any personal injuries and or damage to the instrument all safety instructions and warnings must be observed Disposal WEEE Directive These calibrators contain Electrical and Electronic circuits and must be recycled or disposed of properly in accordance with the WEEE Directive 2002 96 EC Warning About the use e The calibrator must not be used for any purposes other than those described in this manual e The calibrator has been designed for interior use only and should not be used in hazardous areas where vapour or gas leaks etc may constitute a danger of explosion e The calibrator must be kept free within an area of 20 cm on all sides and 1 metre above the calibrator e NEVER use heat transfer fluids such as silicone oil paste etc in the dry block calibrators These fluids may penetrate the calibrator and cause damage or create poisonous fumes e When cleaning the well REMEMBER t
24. mation on how to change the fuses and to adjust the voltage setting of the power control switch Connection for synchronization output Relay which is switching when temperature stability is achieved 3 Connection for RS232 communication Note that all PC equipment which are connected to the calibrator must observe the directive IEC950 Input for RTD sensor 2 3 and 4 wire Connection to chassis earth ground Input for reference sensor Voltage input Passive mA input 9 ad Active mA input with 24V supply for transmitter Connection for thermostat test Note that this connection is for dead switches TC connection for thermocouples One of the inputs either QD or Wcan be selected displaying the SENSOR temperature in the setup and can be displayed as TRUE temperature Note Only the sensor type which is to be tested should be connected to the input panel 18 105447 05 3 6 Calibrator functions overview The instrument s functions are divided into groups See figs 4 and 5 3 7 Setting the speed level of the stirrer liquid baths only Follow the instructions to set the speed level of the stirrer cf fig 14 ee Press to access the Set Up menu ee Press for more choices E Press to access the Stirrer menu E Press to edit the speed level of the stirrer It is now possible to choose a speed setting between 0 and 50 Normal setting is betw
25. mperature status Press to select Convert to temperature This toggles between Yes where inputs are converted to temperatures and No where no conversion is made Press to accept the new settings and return to the Input menu 3 12 6 Altering stability criteria cf fig 12 E Press setup page 2 to select Stability criteria The parameters displayed depend on the sensor selected When none of the parameters displayed are active then the calibrator s internal reference criteria provide the time to stable value Stability values defined here are added to the internal reference stability criteria Press to select the editor e Stability Time and Extended Stability Time can be set in minutes using integers from 0 120 e Stability intervals can be set in 0 01 steps from 0 01 99 99 105447 05 31 E 3 12 7 Make the necessary changes and press to accept the new setting s and exit the editor Setting the access code The following features can be protected by an access code e Resetting the calibrator to Factory default settings e Setting the Maximum SET Temperature e Editing the Access code while it is enabled cf fig 12 E Press setup page 2 to select Access code E Press to start the editor E Use the numeric keys to type in a value from 0000 to 9999 Typing 0000 disables the access code function FE Press to accept the new access code and exit the editor 3 12 8
26. o step FETE Calibrator Overview cont A ATC 1408 ATC 140 250 A B only Stirrer ee gt gt o Stability criteria Facto defaults About gt 13 03 20 Display contrast Temperature Stability criteria fs Access code More More v Factory defaults gt About gt 07 See Calibrator Overview TOAD FROM REGISTRY _I SANT 10 REGISTRY TIP CONTRAST TPR 20 07 Calibration a FUN CALINAATION en 4 Edit i Manual Inputs ONLY i FAN Calibration info see Calibration callraton information Te CATION Manual dur RANAL INPUT ng rap T Finish Show TOLIARTION ERAT results er 13 03 2007 Fig 7 CALIBRATION INFO Scenario This calibrator ESC Back Back to Pme calibration more CALIBRATION INFO Calibration procedure SET temp 350 C 55 0 C 75 0 C 190 0 C 125 0 C Heat source This calibrator This calibrator This calibrator This calibrator calibrator Step 1 ESC Back Back to calibration More CALIBRATION INFO External reference sensor ID 90 deg reference sensor Serial No 98336 006891 Measurement By reference input ESC Back Back to pi i calibration more Cal
27. o wear goggles when using compressed air in the dry block calibrator and cleaning oil in the liquid bath calibrator 105447 05 105447 05 e The ATC 125 contains the gases R 1270 and R 704 under pressure The calibrator must under no conditions be stored or operated at ambient temperatures above 60 C 140 F About the front panel For B versions only the sockets on the input module must NEVER be connected to voltages exceeding 5V for the TC RTD sockets and 45V for the mA V sockets proportional to ground Thermostats must not be connected to any other voltage sources during test About the insertion tubes and sensor NEVER leave hot insertion tubes which have been removed from the calibrator unsupervised they may constitute a fire hazard If you intend to store the calibrator in the optional aluminium carrying case after use you must ensure that the instrument has cooled down to a temperature below 100 C 212 F before placing it in the carrying case About the fuses The fuse box must not be removed from the power control switch until the mains cable has been disconnected The two main fuses must be identical and correspond to the chosen voltage About the liquid bath Ensure that the sensor is absolutely clean and dry as a few drops of water in the well liquid bath might cause a steam explosion AMETEK Denmark A S does not take any responsibility if the well is filled with other fluids than the recomm
28. or cf fig 1b 1 12 Place the calibrator on an even horizontal surface in that place where you intend to use it Place it in a way that will minimize the risk of tilting pos 1 It is recommended to cover the surface with a disposable cover in order to protect the surface against the silicone oil if spilled It is also recommendable to have a sufficient amount of disposable paper towels within reach 105447 05 Caution Do not use the instrument if the internal fan is out of order Ensure a free supply of air to the internal fan located at the bottom of the instrument pos 2 2 The area around the calibrator should be free of draught dirt flammable substances etc 3 Place the parts from the liquid bath kit in the well in the following order A stirring magnet pos 3 B sensor basket pos 4 C silicone oil pos 5 The recommended oil volume to a given test temperature is listed in the tables below The recommended volumes must be adjusted to the actual job ATC 250 A B ATC 140 A B For recommended For recommended 50 cSt oil 10 cSt oil 0 C 50 C 100 20 C 50 C 100 50 C 100 C 95 50 C 100 C 95 100 C 150 C 90 100 C 140 C 90 150 C 200 C 85 200 C 250 C 80 Warning e Do not pour cold oil into a hot well it might cause an explosion e AMETEK Denmark A S does not take any responsibility if the well
29. ppening the insertion tube and the well must be dried This is done by heating up the calibrator to min 100 C 212 F and any water left will evaporate Remove the insulation plug while heating up It is very important that humidity in the well and insertion tube is removed to prevent corrosion and frost expansion damages Do not touch the well or insertion tube when these are below 0 C 32 F they can create frost bites Caution About the use Do not use the instrument if the internal fan is out of order About the liquid bath Be careful not to overfill the well with oil The oil level rises several centimetres when the temperature is rising to maximum Do not attempt to remove hot oil overflow with the liquid drainage tube as it might melt When heated to high temperatures the liquid bath calibrator should be placed under an exhaust hood to remove any vapors given off by the oil About the insertion tube and sensor The tip of the sensor should rest at the bottom of the sensor basket for optimum results liquid baths only 10 e f the sensor under test is short be careful not to submerge the handle or wire inlet in the oil as this might damage the sensor liquid baths only e The insertion tube must always be removed from the calibrator after use The humidity in the air may cause corrosion oxidation on the insertion tube inside the instrument There is a risk that the insertion tube may get stuck if
30. sible To stop the switch test at any time When the switch test is complete press or to store the results in the calibrator and return to the Switch test menu Showing switch test results Two types of switch test results are available Results during a switch test Results of a finished switch test 105447 05 23 Results during a switch test E Press to select Show result This shows the results that are currently available These results change as the test progresses E Press to return to the switch test Results of a finished switch test E Press to select the Switch test menu E Press to select Show result E Press a function soft key to select the results for one of the last five tests The data in the information field is the same as that displayed at the end of the switch test 3 11 AUTO STEP Auto step is used to step automatically between a range of different calibration temperatures For ease of use the following instructions cf fig 9 are split into two sections 3 11 1 Runningan auto step calibration E Press to select the Auto step menu E Press to select Run auto step E Press to enable the editor to change the following values e No of steps the number of temperature steps per direction T T When a Two way mode is selected 24 105447 05 3 11 2 the same number of steps are used for the second direction T T e Mode toggle between One way and
31. sors for a correct position during calibration 105447 05 Caution The tip of the sensor should rest at the bottom of the sensor basket for optimum results e If the sensor under test is short be careful not to submerge the handle or wire inlet in the oil as this might damage the sensor 13 Start the calibration following the calibration procedure in this manual 105447 05 15 3 2 16 During use A Warning liquid baths only If the oil is heated beyond the fire point it may constitute a fire hazard Always set the max SET temperature to a temperature 20 C below the flash point Do not pour water or any other liquid into a bath filled with hot oil E g only a few drops of water might cause a steam explosion if poured into 250 C hot oil Caution Hot surface This symbol is engraved in the grid plate Do not touch the grid plate the well or the insertion tube when the calibrator is heating up they may be very hot Do not touch the lid or the spill tray when the calibrator is heating up they may be very hot liquid baths only Do not touch the tip of the sensor when it is removed from the insertion tube well it may be very hot Do not touch the handle of the calibrator during use it may be very hot Caution liquid baths only It is vital that the stirring magnet is in place and spinning before any calibration attempts The spinning magnet ensures optimum temperature homog
32. tion using the highlighted work order or Press to create a copy of the work order Then press to accept the new name e Press to continue the calibration without editing the basic parameters or Press to start the editor Make the necessary changes exit the editor and continue the calibration If the sensor under test is a thermocouple sensor and the manual compensation mode is selected in work orders a cold junction temperature must be defined E Press if you wish to overwrite the existing calibration and continue If the work order is defined as a manual input use To enter values during the calibration To enter values after the calibration Se Follow the instructions on screen to connect the sensors and press to start the calibration Note a calibration can be stopped at any time but this will erase all the calibration data Follow the instructions on screen e To reposition the sensors when an external manual heat source is used e Toenter the step values when manual input is required E When the calibration is complete press or to store the results in the calibrator 105447 05 21 3 9 2 Showing calibration results E Press to select the Calibration menu 9 Press to select the Show calibration menu e Use and to scroll through the list and highlight a specific work order Sai Press to display the calibration details for the selected work order The calibration results
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