TC125-TC650 Manual 15.06.2001
Contents
1. 4 3 4 3 1 User s manual TC calibrators HOW TO EXECUTE CALIBRATIONS Calibration Procedure TC125 amp TC150 Move the adjustable handle to one side and turn on the main switch Select the insertion tube that best fits the sensor to be tested Place the insertion tube in the thermo well and place the sensor to be tested in the insertion tube and insure that a close contact between sensor and insertion tube is obtained The sensor to be tested must be placed as close as possible to the bottom of the thermo well in order to obtain the best possible calibration result The calibration temperature set point is selected by means of the arrow keys and on the front panel of the calibrator It is i ndicated on the second line on the display SETPK The temperature in the thermo well is indicated on the first line of the display REF The reference temperature will stabilise to the SETPKT When the reference temperature has been within 0 2 C of the setpoint for min a is visible after the last digit of the REF temperature After 7 min a second appears behind the SETPKT temperature the calibrator is now stable to within 0 1 C REF 15 00 C SETPKT 15 00 C 25 User s manual TC calibrators 26 A PID controller is used in the TC125 amp TC 150 to control the temperature Refer to chapter 4 4 for general requirements to obtain the specified accuracy 4 3 2 Calibration at low temperatures The TC125 and2. It is indicated on the second line on the display SETPK The temperature in the thermo well is indicated in the first line of the display REF The reference temperature will stabilise to the SETPKT When the reference temperature has been within 0 2 C of the setpoint for min a is visible after the last digit of the REF temperature After 7 min a second appears behind the SETPKT temperature the calibrator is now stable to within 0 1 250 00 C SETPKT 250 00 C 15 User s manual TC calibrators 16 The temperature control within the TC400 and TC650 uses a specially designed PID controller Refer to chapter 3 4 for general requirements to obtain the specified accuracy 3 3 2 Calibration at high temperatures The TC650 can generate temperatures up to 650 C The TC400 can generate temperatures up to 400 C When using the calibrators at these high temperatures drafts may affect the stability of the calibrator In order not to expose the electronics to high temperatures over a longer period of time we do not recommend to use the calibrator for more than 30 min a time in the range 600 650 If the calibrator os left at high temperature for approximately 45 minutes the setpoint will automatically be set to 50 C 3 3 3 Precaution Please pay attention to the fact that RTD s and thermocouples will react quickly to temperature changes Filled bulbs will react more slowly even if the TC650 amp T
3. V 4 0 indicates the software version no of the calibrator After 10 sec the display will show REF xxx xxx SETPKT xxx xxx C 13 User s manual TC calibrators 14 3 2 2 Celsius Fahrenheit setting To change the temperature notation press simultaneously the temperature setting buttons and amp while switching on the power to the calibrator The display will show CIE After 2 sec the display will show Press the temperature setting button for displaying the temperature in Celsius Press the temperature setting button amp for displaying the temperature in Fahrenheit 3 2 3 Default setting The default setpoint setting for the TC650 amp TC400 is 30 C 3 3 3 3 1 User s manual TC calibrators HOW TO EXECUTE CALIBRATIONS Calibration procedure for TC400 and TC650 Move the adjustable handle to one side and turn on the main switch Select an insertion tube that best fits the sensor to be tested Place the insertion tube in the thermo well and put the sensor to be tested in the insertion tube Insure that there is a good contact between sensor and insertion tube Note The insention tube and the well must be clean The sensor to be tested must be placed as close as possible to the bottom of the thermo well in order to obtain the best possible calibration result The calibration temperature Set Point is selected by means of the arrow keys and on the front panel of the calibrator
4. TC150 can generate a temperature down to 40 C below ambient temperature In order to achieve best thermal coupling to the sensor undergoing test a special silicon oil may be used in the hole between the sensor and insert Tek Know Calibration Oil 200 50 CST 10 ml syringe for applying the oil to the insert Part no P00267 A calibration oil kit is supplied with the cooling calibrators TC125 amp TC150 This is a silicon based oil with a viscosity of 50 and has a temperature range of 25 C to 150 C The oil has no hazardous material present and comes in a 100 ml plastic bottle It is supplied together with a 10ml syringe in a plastic zip bag as a standard accessory with all cooling calibrators from Tek Know Additional oil is available from Scan Sense in 100ml bottles order part no 0267 User s manual TC calibrators 4 3 3 Precaution Please pay attention to the fact that RTD s and thermocouples will react quickly to temperature changes Filled bulbs will react more slowly and even if the TC125 has stabilised the sensor to be tested may not yet have arrived at the indicated temperature So when testing filled bulbs or similar please allow ample time for temperature stabilisation Some sensors are placed in long protection or extension tubes and can not always be totally immersed in the thermo well The metal tube may direct heat or coldness away from the thermo well and this may affect the calibr
5. of shipment During the warranty period Scan Sense will at its option either repair or replace products that prove to be defective The product must be returned to a service facility designated by Scan Sense for warranty service or repair The foregoing warranty will not apply to defects resulting from improper or inadequate maintenance by buyer buyer supplied software or interfacing unauthorised modification or misuse operation outside of the environmental specifications for the product or improper site preparation or maintenance No other warranty is expressed or implied Scan Sense shall not be liable for any direct indirect special incidental or consequential damages whether based on contract tort or any other legal theory 13 Notice All rights reserved Reproduction of any part of this manual in any form what so ever without Scan Senses expressed written permission is forbidden All efforts have been made to ensure the accuracy of this manual However should any errors be detected Scan Sense would greatly appreciate being informed of them The above notwithstanding Scan Sense can assume no responsibility for any errors in this manual or of their consequences User s manual TC calibrators 1 4 Safety WARNING The warning sign denotes a hazard Such warning labels are fitted to several places on the calibrators It calls attention to a procedure which if not correctly performed or adhered to could result in in
6. reacts more slowly to temperature changes see fig 4 1 Consequently make sure that before performing calibration that the indicator for stable temperatures in the calibrator a is shown in the display after the SET POINT temperature is present and also take into consideration the mass of the sensor being tested When using the TC125 amp TC150 software in seem automatic mode the PC will inform when the sensor being tested has obtained stabilisation User s manual TC calibrators 4 4 2 High accuracy Dry block calibrators accuracy and performance to a given specification is dependent on the fact that it reproduces the conditions for under which it was calibrated There are several factors that may have affect on the accuracy of the calibrators There are variations in the sensor diameter length thermo conductivity the active element s position in the sensor cleanness of the sensor and fit in the insert from the one used during the calibrator s calibration Undrilled insertion tubes optional are available for custom drilling In these cases Scan Sense can not guaranty for the calibrators specifications To fabricate such calibration Scan Sense can supply insertion tubes with 2 or more holes according to specifications 4 4 3 Heatloss to the surroundings When calibrating or testing a long sensor that is partly exposed when mounted in the calibrator a heat loss to the surroundings will result This is especially true when t
7. requirements for cooling calibrators 110 Volt 230 Volt Input Voltage 90 to 130 V rms 180 to 260 Vrms Frequency 47 to 65 Hz 47 to 65 Hz Power consumption 180 W 180 W WARNING Failure to ground the temperature calibrator properly can result in personal injury Use grounded AC power outlet 4 1 3 Fuses The fuse used in TC150 amp TC125 isa 5 x 20 mm 2 0 amp slow 230 V The fuse is placed next to the mains switch 4 2 GETTINGSTARTED 4 2 1 Power on When the TC125 or TC150 is switched on the LCD display on the front panel will show User s manual TC calibrators TC125 V1 0 S n xxxxxx ddmmyy x denotes the serial no of the calibrator and ddmmyy is the date of last calibration of the calibrator V 1 0 shows the software version no of the calibrator After 10 sec the display will show REF xxx xx C SETPKT xxx xx C 4 2 2 Celsius Fahrenheit setting To change the temperature notation press simultaneously the temperature setting buttons and amp while turning on the power to the calibrator 23 User s manual TC calibrators The display will show C F After 2 sec the display will show CELS FAHR UP DOWN Press the temperature setting button for displaying the temperature in Celsius Press the temperature setting button for displaying the temperature in Fahrenheit 4 2 3 Defaultsetting TC125 and TC150 The default setpoint for the TC125 and TC150 is 20 C 24
8. C400 have stabilised the sensor to be tested may not yet have arrived at the indicated temperature So when testing filled bulbs or similar please allow ample time for temperature stabilisation Some sensors are placed in long protection or extension tubes and can not always be totally immersed in the thermo well The metal tube may conduct heat or cold away from the thermo well and this may affect the calibration This can be prevented by using insulation material on the part of the sensor that is not immersed in the well The part of the WARNING sensor which is not immersed in the calibrator Never store the TC650 amp TC400 in the carrying case before the temperature in the thermo well is below 50 C User s manual TC calibrators 3 3 4 Test of thermostats The TC650 amp TC400 have a built in test functions for thermostats Connect the alligator clips to the on off function of the thermostat to the calibrator The test light on the front of the calibrator will indicate when the on off function of the thermostat is activated Please pay attention to the fact that thermostats react slowly to temperature changes 17 User s manual TC calibrators 18 3 4 CALIBRATION HINTS 3 4 1 Time constants The TC650 amp TC400 s reference sensors are mounted in the heating cooling block and will react quickly to temperature changes small time constant The sensors being tested have a larger time constant due to larger mass and longer d
9. TC125 TC150 TC400 TC650 TEMPERATURE CALIBRATORS USER S MANUAL Manual revision 15 March 2001 SCSMANP004 Copyrighted 2001 User s manual TC calibrators Thank you for purchasing a Tek Know temperature calibrators The Tek Know products are manufactured by Scan Sense AS in ac cordance with our high quality standards in design choice of compo nents and workmanship in order to achieve maximum customer satis faction and to fulfil our vision to be our customers First Choice The TC125 150 400 and 650 are designed and manufactured by Scan Sense AS Tel 47 33 36 30 00 Bekkeveien 163 Fax 47 33 36 3001 N 3173 Vear www scansense no NORWAY post scansense no User s manual TC calibrators Contents 11 Certification 5 12 Warranty 6 13 Notice 6 14 Safety 7 2 INTRODUCTION 9 3 CALIBRATORS TC650 amp TC400 11 3 1 PREPARATION 11 3 1 1 Preparing the Heating calibrators for use 11 3 1 2 Power Requirements TC400 amp TC650 13 3 1 3 Fuses 12 3 2 GETTING STARTED 13 3 2 1 Power On 13 3 2 2 Celsius Fahrenheit Setting 14 3 2 3 Default setting 14 3 3 HOW TO EXECUTE CALIBRATIONS 15 33 1 Calibration Procedure 15 332 Calibration at High Temperatures 16 3 3 3 Precaution 16 334 Test of thermostats 17 3 4 CALIBRATION HINTS 18 34 1 Time Constants 18 342 High Accuracy 19 343 Heat loss to the Surroundings 20 3 4 4 Cleaning of block and Insert 20 4 0 CALIBRATORS TC125 amp TC150 21 4 1 PREPARATION 21 4 1 1 Prepa
10. TERFACE The TC Calibrators are supplied with an RS 232 port for connection to a PC as a standard To ease the calibration taskand save man hours Scan Sense have developed a Windows based software SC200 By using the SC200 software automatic calibration can easily be done by the user Data can be presented in a calibration report that takes into account the ISO 9000 specifications procedures set up and traceability It will also generate a simple database for your sensors and temperature circuits The software will be of a significant time saving factor for the operator when at the same time it is almost self instructive in use SETUP Baudrate 9600 baud no parity 8 bits 1 stop bit 9 pin D SUB female connector Tx pin2 Rx pin 3 Gnd pin5 The TC Calibrators communicate with the SC200 PC based calibration software using an eight byte communications protocol All parameter settings and control can be set remotely using the SC200 software 31 User s manual TC calibrators 32 6 TECHNICALSPECIFICATIONS 61 TCI25 amp TC150 CC sees use Min temp is relative to ambient temp User s manual TC calibrators 6 2 X TC650 amp TC400 ow To C oe T oem oe T oem 33 User s manual TC calibrators Notes 34 Notes User s manual TC calibrators 35 User s manual TC calibrators Notes 36
11. ation Using insulating material on the part of the sensor which is not WARNING immersed in the calibrator can prevent this Never store the TC125 and TC150 in the carrying case before the temperature in the thermo well is below 50 C 4 3 4 Test of thermostats The TC125 and TC150 has a built in test function for thermostats Connect the alligator clips to the on off function of the thermostat to the calibrator The test light on the front of the calibrator will indicate when the on off function of the thermostat is activated Please pay attention to the fact that thermostats may react slowly to temperature changes 27 User s manual TC calibrators 28 4 4 CALIBRATION HINTS 441 Time constants The TC125 and TC150 s reference sensor is mounted in the heating cooling block and will react quickly to temperature changes small time constant The sensors being tested has a larger time constant due to larger mass and longer distance to the heating cooling elements Consequently the temperature curve for the reference sensor and the sensor being tested will be different See fig 4 1 c Glock temperature kl Taal aansa Damparature Figure 4 1 Temperature Response A certain overshoot will take place when approaching the Setpoint typically approximately 0 3 C This speeds stabilisation time for calibrations This however only applies to the reference temperature as the sensor being tested has a larger mass and
12. during the calibrator s calibration For setpoint temperatures above 400 C it is important that the insert block and sensor is clean and free from dust and oxidisation products Always approach the setpoint value from a lower temperature The TC400 and TC650 are calibrated dry using a 6mm Industrial Standard Reference Pt 100 sensor placed in the bottom of a 6 5mm drilled insert Undrilled insertion tubes optional are availablefor custom drilling In these cases Scan Sense can not guaranty for the calibrators specifications To facilitate such calibration Scan Sense can supply insertion tubes with 2 or more holes according to specifications 19 User s manual TC calibrators 20 3 4 3 Heatlosses to the surroundings When calibrating or testing a long sensor that is partly exposed when mounted in the calibrator a heat loss to the surroundings will result This is especially true when the sensor has a large mass that is exposed This heat loss will affect the accuracy and may be as much as 0 5 C to 1 0 C As a general rule this error when minimal is the exposed length of the sensor is 1 4 of the length of the sensor We recommend that the exposed part of the sensor is insulated See figure 3 2 Insulation material Figure 3 2 Insulation Different insulating materials may be used but it is important that it can withstand the operating temperatures and has a good insulation char acteristic It should be fl
13. e damage to the equipment may occure 11 User s manual TC calibrators 12 Table 3 2 Power requirements for heating calibrators 100 Volt 110 Volt 230 Volt Input Voltage 90 to 100 to 130 V 198 to 250 V Frequency 50 to 60 Hz 50 to 60 Hz 50 to 60 Hz Power consumption 1600 W 1600 W 1600 W Failure to ground the temperature calibrator properly can result in personal injury Use a grounded AC power outlet Place the temperature calibrator on an even surface and make sure that the air inlet for the fan is not blocked Connect the power cable to the temperature calibrator and press the Line switch on the bottom panel to turn it on The calibrator must not WARNING be covered The calibrator must be used in environment with free space of 0 5 m above and 0 1 m open space on either side and with satisfactory ventilation or temperature control 3 1 3 Fuses The fuses used in the TC400 and TC650 100 amp 110Volt versions are 6 3 x 32 mm ceramic 15 amp slow The fuses used in the TC400 and TC650 230 Volt versions are 5 x 20 mm glass 10 amp slow The fuses are placed next to the mains switch 3 2 3 2 1 User s manual TC calibrators GETTINGSTARTED Power On When the TC650 or TC400 is switched on the LCD display on the front panel will show TC650 4 0 S n ddmmyy denotes the serial no of the calibrator ddmmyy is the date of last calibration of the calibrator
14. essories such as cable and inserts The communication port RS 232 comes as a standard feature for use with a computer in the calibration process Tek Know provides optional calibration software for temperature The TC calibrators together with the SC200 calibration software and SM300 Signal master will give you an automatic calibration system User s manual TC calibrators TC Calibrator Signal Master SM300 Figure 2 1 Automatic calibration with internal reference Ref Pt 100 channel A Pt 100 channel B PCwihSC200 TC Calibrator Signal Master SM300 Figure2 2 Automatic calibration with external reference 10 User s manual TC calibrators 3 CALIBRATORS TC400 amp TC650 3 1 PREPARATION 3 1 4 Preparing the heating calibrators for use Table 3 1 Items included with the TC400 650 temperature calibrators Temperature calibrator TC400 or 650 Carrying case Power cord Test cable for thermostats Tool for changing inserts Insertion tube with 6 5 mm hole nsertion tube with 10 5 mm hole Calibration certificate User s manual 3 1 2 Power requirements for TC400 amp TC650 The TC400 amp TC650 temperature calibrators areportable instruments that require no physical installation other than connection to a grounded ACpower source Do not connect AC power until you have verified that the line voltage is correct and that the proper fuse is installed Otherwis
15. exible so that it can be tucked around the sensor Consult Scan Sense for further information 3 4 4 Cleaning of block and insert In order to obtain maximum and repetitive performance of the calibrator itis important to keep the temperature well and insert as clean as possible at all times Before starting a calibration clean the well insert and sensor with fin wire wool or a wire brush Gun bore cleaning tools are suitable for this purpose Not the solvents Remove the dust from the cleaning process with a dry cloth or compressed air User s manual TC calibrators 4 0 CALIBRATORS TC125 and TC150 4 1 PREPARATION 4 1 4 Preparing the cooling calibrators for use Table 4 1 Items included with the TC125 and TC150 Temperature Calibrator Temperature calibrator TC125 or TC150 Carrying case Power cord Test cable for thermostats Tool for changing inserts Silicon oil and syringe nsertion tube 3 5 mm hole nsertion tube 6 5 mm hole Calibration certificate Users manual 4 1 2 Power requirements for TC125 and TC150 The TC125 and TC150 temperature calibrators are portable instruments and require no physical installation other than connection to a grounded ACpower source Do not connect AC power until you have verified that the line voltage is correct and that the proper fuse is installed Otherwise damageto the equipment may WARNING Occure 21 User s manual TC calibrators 22 Table 1 2 Power
16. he sensor has a large mass that is exposed This heat loss will affect the accuracy and may be 0 5 C to 1 0 C As a general rule the exposed length of the sensor should be 1 4 of the length of the sensor We recommend that some of the exposed part of the sensor be insulated See fig 4 2 Insulation material Figure 4 2 Insulation 29 User s manual TC calibrators 30 Different insulating materials may be used but it is important that it can withstand the operating temperatures and has a good insulation characteristic It should be flexible so that it can be tucked around the sensor Consult Scan Sense for further information 4 4 4 Cleaning of block and insert In order to obtain maximum performance of the calibrator it is important to keep the temperature well and insert as clean as possible Before starting a calibration clean the well and insert The insert is cleaned using a dry cloth Compressed air may be used to clean the well 4 4 5 Method of calibration During the calibration of the calibrator a silicon oil was used in the insert in order to obtain a good thermal conduction between the insert and the reference thermometer This silicon oil was used during the entire calibration of the calibrator We recommend therefore that silicon oil be used in the insert when using the calibrator in order to obtain the same conditions as when the calibrator was calibrated User s manual TC calibrators RS 232 IN
17. istance to the heating cooling elements Consequently the temperature curve for the reference sensor and the sensor being tested will be different See figure 3 1 c Block temperature Test sensor temperatura Figure 3 1 Temperature Response A certain overshoot will take place when approaching the Set point This speeds up stabilisation time for calibrations This however only applies to the reference temperature as the sensor tested has a larger mass and reacts more slowly to temperature changes see fig 3 1 Consequently always make sure that before performing a calibration that the indicator for stable temperature in the calibrator a is shown in the display after the SETPKT temperature is present and also take into consideration the mass of the sensor being tested When the TC650 amp TC400 calibrators are used with the SC200 software in semi automatic mode the PC will inform when the sensor being tested has obtained its stabilisation User s manual TC calibrators 3 4 2 High accuracy Dry block calibrators accuracy and performance to a given specification is dependent on the fact that it reproduces the conditions for under which it was calibrated There are several factors that may have affect on the accuracy of the calibrators There are variations in the sensor diameter length thermo conductivity the active element s position in the sensor cleanness of the sensor and fit in the insert from the one used
18. jury or loss of life Do not proceed beyond a warning sign until the indicated conditions are fully understood and met If you are in doubt please contact your nearest Tek Know dealer A dry block calibrator is constructed in such a manner that it is impossible to operate it without generating hot areas that can be of danger It is very important the operator in charge of the calibrator is aware of the potential dangers and that he relays this information to any other future user There are no operational switches or buttons inside the calibrator that is needed during operation Opening the calibrator during operation is very dangerous due to high temperatures and high voltages The calibrator is only to be opened by qualified service personnel After the calibrator has been operated it may be very hot Do not turn off the calibrator if the temperature is above 400 C The correct procedure is to set the setpoint to 50 C and allow it to cool below 100 C If the calibrator switches itself down during operation this can be due to the internal safety trip switch In these cases please contact your dealer because a new fuse will have to be installed User s manual TC calibrators Failure to ground the temperature calibrator properly can result in personal injury Use grounded ac power outlet Place the temperature calibrator on an even surface and make sure that the air inlet for the fan is not blocked Connect the power cable to the tempe
19. rature calibrator and press the Line switch on the bottom panel to turn it on The calibrator must not be covered The calibrator must be used in an environment with free space of 0 5 m above and 0 1 m open space on either side and with satisfactory ventilation or temperature control User s manual TC calibrators 2 INTRODUCTION The TC calibrators user manuals are intended to be used with the Tek Know portable calibrators TC125 TC150 TC400 and TC650 The TC Calibrators are constructed with a dry temperature variable well with a special designed temperature controller A digital controller with a dedicated CPU gives the TC calibrators flexible controllability Digital control provides for adaptive control of the temperature which saves the operator time and assures high accuracy and easy setting of temperatures The local LCD displays both the set temperature and reference temperature simultaneously The display of the TC400 amp TC650 has a resolution of 0 1 C however the PID controller works with a resolution of 0 01 C Effectively this means that a better stability than stated in the specifications may be obtained In order to obtain this the calibration conditions must be ideal First and foremost the ambient temperature must be kept stable state and longer stabilisation time for the calibrator must be allowed This is to compensate for the temperature influence on the electronics They come in a dedicated instrument case with ass
20. ring the TC125 amp TC150 for use 21 4 1 2 Power Requirements 21 4 1 3 Fuses 22 4 2 GETTING STARTED 22 4 2 1 Power on 22 4 2 2 Celsius Fahrenheit setting 23 4 2 3 Default setting TC125 amp TC150 24 User s manual TC calibrators 4 3 4 3 1 4 3 2 4 3 3 4 3 4 4 4 4 4 1 4 4 2 4 4 3 4 4 4 4 4 5 HOW TO EXECUTE CALIBRATIONS Calibration Procedure TC125 amp TC150 Calibration at Low Temperatures Precaution Test of Thermostats CALIBRATION HINTS Time constants High Accuracy Heat loss to the Surroundings Cleaning of Block and Insert Method of calibration 5 RS232INTERFACE 6 TECHNICAL SPECIFICATIONS 6 1 6 2 TC125 amp TC150 TC650 amp TC400 SSRBRBRBRBNNRRB User s manual TC calibrators 1 1 Certification Scan Sense AS certifies that this product meets its published specifications at the time of shipment from the factory Scan Sense AS further certifies that its calibration measurements are traceable to Norwegian Accreditation Standards and to the calibration facilities of other International Standards Organisation members FSO Scan Sense AS declares that the following products TC125 TC150 TC400 and TC650 confirm to the following standards EN 500081 1 1992 EN 500082 1 1992 EN 61010 1993 EN 60742 1 IEC 801 2 DS 5104 User s manual TC calibrators 1 2 Warranty These Tek Know products are warranted against defects in material and workman ship for a period of one year from date
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