Home

Precision-Temperature

1. SIKA r 1901 Dr AATE ebert amp K hn Se KG Precision Temperature Calibrator Series TP28850E User Manual February 2001 Sika TP28850E User Manual Table of Contents 1 TO THIS USER MANUAL rara ra ranura rura ra nara na ra ua rao dra nara uana nara dr nara o anna nnnnnnnn nun 3 2 SAB EC Y e M ak 4 3 DESCRIPTION OF THE TP28850E ivi ciciciecciccctcccteccccccteccceccteccdecntewcdeccteccdecetecececececeseves 6 3 1 Modular groups and operating components eene 6 3 2 Design and function of the TP238350E uunenunsnnnnnnnannnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nnn 7 3 3 TP28850E standard units a Aa 8 3 331 Mains cables T a E AE E A A E AA E AAAA EEE 8 33 3 Sleeve graD nn ee ea ae ee ee 8 3 3 4 PO Conneclion Szene ee m 8 Transmitting Protocol een 8 Receiving protocol u een erh 9 3 3 4 PC terminal plan eene nnn nnne nnns ETET 10 3 4 Special accessories asis un isn enge 10 3 4 1 Adapter sleeves 0224442444400400000000R0nRnnnnnnnnn nenn onen nennen nnn ne nsns nsn eka EREE 10 34 2 301 Ware TA T A ATT A E ET 10 4 TRANSPORT STORAGE AND STARTING THE INSTRUMENT 11 42 1 TRANS 010 4 SRRRNERPOBFOPARENRRRETEREEURERFERRFTERLTERTRTENTEERFATERTERESFERLRORELETELTELELETEITPRENERRSEUEESELPRRLLLLEREELTERETER 11 4 2 ST0ra0E in ae EB 11 4 3 Starting theinstrumenk2 ua Bei 11 Ae Sl
2. required value difference and thus controlling the heating block 5 1 4 Block temperature stability Block temperature stability As long as the heating block temperature display is flashing the heating block isn t still levelled out on the set required value In case of constant heating block temperature display the temperature is on the set level The microprocessor checks up the following heating block stable temperature criteria 1 Actual heating block temperature does no longer vary constant temperature displayed 2 The difference between programmed actual and required temperature value is less than 0 1 K 5 2 Cooling down heating block 3235900E DOC Caution Burning heat Let the TP28850E cool down after use Transport the TP28850E only after being completely cooled down Burning heat on the specimen s surface Burning heat at specimen February 01 15 Sika TP28850E 3235900E DOC User Manual Operating the TP28850E Never touch heating block or specimen surface Never leave the TP28850E unobserved after use Wait until the heating block has attained ambient temperature before packing the TP28850E It is possible to enhance cooling by zeroing the test temperature see pragraph Setting the test temperature Remove adapter sleeves Caution Burning heat The adapter sleeves can be heated up to 850 C Only remove the sleeves in cooled state e Compress supplied sleeve grabs and fit i
3. 0E one This user manual is focussed to skilled and semi skilled operators Before starting an operation carefully read through the appropriate notes and follow the given sequence of operations Read through chapter Safety very thoroughly and exactly remember the pictograms and their meanings The instrument is designed for the calibration of temperature switches thermostats thermocouples thermometers and resistance thermometers This user manual is divided into eight chapters General Safety Description of the TP28850E Transport storage and starting the instrument Operating the TP28850E Maintenance and care Trouble shooting Specification oOoNOUOP ODND For any problems or questions possibly arising please contact your supplier or SIKA directly SIKA Dr Siebert amp K hn GmbH amp Co KG Struthweg 7 9 D 34260 Kaufungen Phone 0049 5605 8030 Fax 0049 5605 803 54 60 Telex 9 9717 sika d February 01 3 Sika TP28850E 2 Safety 3235900E DOC User Manual The TP28850E represents the state of the art This applies to measuring accuracy functional principle and safe instrument operation Warranting safe operation however requires expert and safety reliable user attitude You will find the necessary notes in this chapter below Warnings especially related to single operating processes or manipulations are given at the respective paragraphs of this manual These warnin
4. 1 K0 0121 BLUTES EE EEE AT AEA AEE TT 11 4 32 Expectable MISUSE asian nenn ren 11 4 3 3 Positioning and connecting the TP28850E 4444444Hnennnnnnnnnnnnnnnnnnnnnnnnnnn nennen 11 5 OPERATING THE TP28850E 2 2 2 2 ccce ricus c cuc aka 13 5 1 Operating and setting up the TP28850E eese 13 5 1 1 Before starting the TP28850E en et eter atra utres alvo tease ita Tec adeb p RN 13 5 1 9 Starting the TP288 50 Er sent een na en rated 13 5 1 4 Setting the testing temperature ice a 14 5 1 4 Block temperature stabilitya ana aa deter rep he Les 15 5 2 Cooling down heating block cccsseeeeeeeeseeeeeeeseeeeeeeeeseeeeenseeeeeeeeesseeeeeesseeeeeeesseenenees 15 6 MAINTENANCE AND CARE uuuuuununnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 17 OAC ANG re n 17 6 2 Encre EMITE 17 6 2 Recalibration Mee EE 17 6 2 2 Checking and exchanging the fuses eeeeeeseeeeeeee ener 18 6 2 3 Recycling c 20 7 TROUBLE SHOOTING ecce e cese cce cese ecc e eese ecce cede erae cese eres ete ecce cese ecce cde coe ese ccce 21 B SPECIFICATION 22 3235900E DOC February 01 2 Sika TP28850E User Manual 1 To this user manual 3235900E DOC The SIKA Precision Temperature Calibrator is an instrument of the TP28000 series This instrument is exactly a type TP2885
5. Heating block sensor exchange at the manufacturer Let instrument cool down and eliminate trouble Let instrument cool down and eliminate trouble Note In case the instrument is still in inproper function after the above trouble shooting it has to be checked at the manufacturer February 01 21 Sika TP28850E 8 Specification User Manual Setting the heating block temperature Heating and cooling times by required value programming Heating times TP28850E 18 28 100 20 C to 100 C 100 C to 200 C 200 C to 300 C 300 C to 400 C 400 C to 500 C 500 C to 600 C 600 C to 700 C 700 C to 800 C 800 C to 850 C Cooling times 850 C to 800 C 800 C to 700 C 700 C to 600 C 600 C to 500 C 500 C to 400 C 400 C to 300 C 300 C to 200 C 200 C to 100 C An additional levelling time has to be considered Heating block temperature balancing 3235900E DOC 0 0 C 850 0 C in 1 10 K resolution February 01 22 Sika TP28850E User Manual Specification Heating block control accuracy 0 5K Heating block control stability 0 2K Measuring element within heating block control with PID controller Pt100 Actual value display 2 row alphanumerical LC display with LED backlight 16 digit row 5 5 mm height Exceeding range sensor break IempkError displayed Sensor break for control unit Heating voltage switched off TempError displa
6. ains voltage The fan in the instrument s base begins to operate e Turn mains switch into EIN ON I e For some seconds TP28850E CALIBRATION appears on the display Calibration of the built in electronic Then appears on the display INSTRUMENT STOP START V e Depress Down key The display shows in the upper row the actual temperature of the heating block Block and in the lower row the desired temperature Set The heating block is now heated up to the testing temperature set last Note For changing the set testing temperature see paragraph Setting the testing temperature February 01 13 Sika TP28850E User Manual Operating the TP28850E 5 1 4 Setting the testing temperature 3235900E DOC Set new testing temperature as described below With the aid of the setpoint and start keys you can set the testing temperature with an accuracy of 1 10 K Procedure Apply mains voltage Turn mains switch into EIN ON I Note Undepressed key for approx 30 sec stops programming for safety reasons and resets the instrument on INSTRUMENT STOP START 7 Then you have to start the instrument again see paragraph Starting the TP28850E Depress Down key Depress setpoint key Testing temperature set is displayed Depress Up or Down key frequently until the desired 1 10 value is displayed Depress setpoint key 1 10 digit confirmed and the cursor changes to the unit p
7. ausing inflammation or explosion in case of being heated up Test the actual heating block temperature before touching a heating block or the adapter sleeve since there is acute danger of being burned Never remove adapter sleeves from a heated heating block heated adapter sleeves can cause inflammation Never remove specimen from a heated heating block acute danger of being burned 3x Note Never leave a heated Instrument without supervision 3235900E DOC February 01 5 Sika TP28850E User Manual 3 Description of the TP28850E 3 1 Modular groups and operating components 1 2 3 YA SIKA electronic BLOCK 52119 C SOLL 600 0 C x m x 12 11 S PNE m O A Atantiont High Temperature L3 7 N D JZ 1 Heating block 8 Setpoint key Fig TP28850E front panel 2 Heating block bore 9 UP key 3 Adapter sleeve 10 Mains switch on off 4 Display 11 Note 5 Cycle display 12 Latching knob 6 Interface PC connection 13 Protective grid 7 Down key 3235900E DOC February 01 6 Sika TP28850E User Manual 3 2 Design and function of the TP28850E 3235900E DOC This precision temperature calibrator is operated by an electronically controlled heating block 1 made of brass and allowing to be thermostated up to 850 C The heating block has a bore 2 serving as location hole for the specimen A
8. bytes total All information is transmitted in ASCII Transmitting protocol Explanation STX Start of Text start of protocol b Blocktemperatur 200 C B Blocktemperatur gt 200 C mathematical sign of the block temperature JI invalid block temperature S Ban 10 digit block temperature 10 digit block temperature 7 10 digit block temperature 10 digit block temperature b block temperature 200 C B block temperature 200 C 10 digit block temperature 10 digit block temperature 00000 ETX End of Text end of protocol The transmitting parameters are adjusted to 9600 baud 8 data bits 1 stop bit odd parity 3235900E DOC February 01 8 Sika TP28850E User Manual Starting In the receiving mode a superior control computer can set new required values to the TP28850E for control of those functions key The receiving protocol has 9 bytes total All information is received in ASCII Receiving protocol STX Start of Text start of protocol 3 73 a a amd 000000 PA 00000007 The receiving parameters are adjusted to 9600 baud 8 data bits 1 stop bit odd parity Superior control computer transmitting the byte sequence Explanation 02 STX Start of Text start of protocol requests the TP28850E to transmit the stored information on instrument type required value and temperature switch state to the control computer The TP28850E replies this prompt by sin
9. gly transmitting the byte sequence p AC sse 00000 p s e 70000000 sts ur 14 0 bis 9 10 digit stored required value 15 temperature switch blocked Inputs 3235900E DOC February 01 9 Sika TP28850E Outputs User Manual Starting Input level 30 V max Low level 2 5 30V High level 30 0 8 V Input impedance 3 7 K RxD Received data CTS Clear to send Output level 9 V 5 V min Low level 5 V min High level 5 V min TxD Transmitted data RTS Request to send 3 3 4 PC terminal plan PC PC TP28000 9 pole 9 pole 9 pole D Sub terminal D Sub terminal D Sub plug 1 Screen gt gt Screen RxD 2 2 2 2 TxD TxD gt 2 gt 3 3 RxD CTS 2 SL 2 RTS RTS 3 rf ER CTS GND 7 gt gt 5 7 GND Fig TP28850E terminal plan 3 4 Special accessories 3 4 1 Adapter sleeves 3 4 2 Software 3235900E DOC Adapter sleeves are available in various sizes upon special request Efficient software is available for TP28000E series instruments This software allows the remote control of the instrument by a superior control computer and carrying out data acquisition and evaluation The program can be operated on all IBM compatible PC s February 01 10 Sika TP28850E User Manual Starting 4 Transport storage and starting the instrument 4 1 Transport 4 2 Storage The TP28850E testing instrument is a portable unit for versatile
10. gs are marked by the following symbols Caution High temperature JaN This symbol refers to a situation being hazardous for persons Danger Injurious to Health This symbol refers to jeopardizing persons by electric power Attention Material damage This symbol refers to an action causing damages of the instrument iT Note This symbol stands for important notes The warning Attention High temperature is directly placed on the instrument as shown below Q Achtung Hohe Temperatur A MN Fig Magnification enlarge detail February 01 4 Sika TP28850E User Manual Safety Specific safety notes Note The TP28850E has to be exclusively used for testing 3x temperature switches thermostats thermocouples thermometers and resistance thermometers The TP28850E noise level is below 70 dbA Remove all easily flammable materials near the instrument and prevent the instrument from contact with easily flammable and explosive materials Always ensure sufficient cooling air supply by the built in fans Do not hinder air supply by positioning the instrument on a soft and yielding ground Connect the instrument to a circuit of low mains breakdown risk to avoid cooling air supply being stopped in case of mains breakdown Ensure that adapter sleeves and specimen are not contaminated by media e g oil c
11. lace Depress Up or Down key frequently until desired unit place is displayed Depress setpoint key Unit place confirmed the cursor changes to the ten s place Depress Up or Down key frequently until desired ten s place is displayed Depress setpoint key Ten s place confirmed the cursor changes to the hundred s place Depress Up or Down key frequently until desired hundred s place is displayed Depress setpoint key again The display shows in the upper row the actual temperature of the heating block Block and in the lower row the desired temperature Set The heating block is heated up to the set testing temperature February 01 14 Sika TP28850E User Manual Operating the TP28850E Note If you press the Up Down keys for a long time the values at the actual cursor position are increased or decreased step by step Fine balancing of the testing temperature After having programmed the TP28850E for a new required value the heating block is heated up or cooled down to the new temperature For reasons of external interference it can happen that the heating block does not directly attain the testing temperature set This would mean a difference between the required temperature testing temperature and the actual one displayed The TP28850E however has an automatic adjusting function serving for automatic difference balancing The incorporated microprocessor is continuously calculating the actual
12. n adapter sleeve 3 can be inserted in that bore The sleeve serves as an adapter between specimen temperature switch thermostat thermocouple thermometer resistance thermometer and heating block Caution The top side of the heating block is provided with a protective grid 13 and an overheat warning The display 4 indicates the temperature of the heating block and the desired heating block temperature or the temperature gradient The display indicates the temperature with a resolution of 1 10K Set the desired heating block temperature by manipulating the setpoint key 8 or the Down key 7 Up key 9 It is possible to set the desired temperature with an accuracy of 1 10 K The RS 232C interface 6 is used to connect the instrument to a computer February 01 7 Sika TP28850E User Manual Starting 3 3 TP28850E standard units 3 3 1 Mains cable A mains cable for power supply is enclosed to the TP28850E 3 3 3 Sleeve grab A grab for taking out the adapter sleeve is enclosed to the TP28850E 3 3 4 PC connection A data transfer cable is enclosed to the instrument The TP28850E is provided with a RS 232C serial interface It is bidirectional i e it is possible to transmit data for further processing by a superior computer and to receive data for programming the instrument by a superior computer as well The transmitting mode continuously transmits the actual block temperature The transmitting protocol has 16
13. nto the adapter sleeve bores e Remove adapter sleeve February 01 16 Sika TP28850E User Manual 6 Maintenance and Care 6 1 Care Attention Always keep the TP28850E clean and do not leave it in dusty and moisty rooms Clean the TP28850E after each use Attention Avoid measuring errors by always keeping the 6 2 Maintenance N 6 2 1 Recalibration heating block bores clean and never using filling media for measuring When switching on your TP28850E is not possible check the fuses and exchange if necessary Fuses inside the TP28850E housing Danger Electric voltage Before exchanging the fuses disconnect mains plug Check the fuses see pragraph Checking and exchanging the fuses Exchange fuse in case of defect The TP28850E is adjusted and tested by the manufacturer acc to the accepted standards On the basis of the DIN ISO 10 012 standard the TP28850E has to undergo testing within fixed intervals of time D Note Use original packing to mail the TP28850E 3235900E DOC Therefore we recommend to send the TP28850E to our factory for recalibration or readjustment within intervals of at maximum 12 months or after 500 operating hours February 01 17 Sika TP28850E User Manual Maintenance and Care 6 2 2 Checking and exchanging the fuses 3235900E DOC A The TP28850E is equipped with two fuses which have to be checked and exchanged if necessary 1 Mains unit f
14. ser Manual Maintenance and Care e Screw out fuse and check e Incase of defect fuse always insert a new T40 250 V 40 mA slow 250 VAC one e Screw in fuse 3 Note Insert electronics unit 1 together with guide plate 2 into guide bar e Insert electronics and tighten 6 2 3 Recycling SIKA factory guarantees for expert recycling Therefore return the TP28850E free of charge 3235900E DOC February 01 20 Sika TP28850E 7 Trouble shooting User Manual Note This table shows how to carry out trouble shooting Trouble TP28850E not in proper function TP28850E goes into standby INSTRUMENT STOP m START W is displayed TP28850E goes into error position Block TempError is displayed TP28850E switches off control device and goes into error position Block TempError is displayed The entire heating circuit is switched off by a temperature fuse I 3235900E DOC External influence e g mag netic fields incorrect supply voltage Setpoint key is depressed Programming not finished Internal heating block sensor defect Heating block heating up to a temperature of approx 870 C The heating block heats up to a temperature of approx 880 C Test applied mains voltage and compare to that one given on the label Disconnect mains plug Check fuses and exchange in case of defect Again depress Down key then TP28850E starts measuring procedure
15. service purposes as well as for industrial and laboratory tasks It is provided with a handle attached on its side and being brought to any position by depressing the lateral latching knobs 12 For bearing the instrument bring the handle into vertical position until handle locks Attention For transport e g to recalibration use original packing to avoid any damage Store the TP28850E dust proof and at a dry place The ambient temperature between 10 C and 80 C during storage has to be warranted 4 3 Starting the instrument 4 3 1 Proper use 4 3 2 Expectable misuse Use the TP28850E exclusively for testing temperature switches thermostats thermocouples thermometers and resistance thermometers within the given temperature range Ensure that the testing temperature is suitable for the specimen to prevent the specimen from being destroyed Caution Remove all easily flammable media from the surrounding of the instrument and prevent the instrument from contact with easily flammable and explosive materials 4 3 3 Positioning and connecting the TP28850E 3235900E DOC Check ups before starting Attention When positioning the instrument ensure that the fan in the instrument s bottom can supply enough air Do not position the instrument on a soft and yielding ground Before starting bring the instrument in its normal operating February 01 11 Sika TP28850E User Manual Starting position Procedure e Always po
16. sition the TP28850E in vertical position e If the TP28850E not being vertically positioned an even temperature distribution within the heating block is not warranted e Check specifications e Compare the label with specification Caution Check the heating block bores for being clean and undamaged Do not use filling media Check for e the specimen e the adapter sleeve e the heating block bore exactly matching to each other Keep the thermal contact resistance as low as possible Connect the instrument to a circuit of low mains breakdown risk to avoid cooling air supply stoppage in case of mains breakdown Check for e the fan starting operation when being connected to the mains 3235900E DOC February 01 12 Sika TP28850E User Manual 5 Operating the TP28850E 5 1 Operating and setting up the TP28850E 5 1 1 Before starting the TP28850E I 5 1 3 Starting the TP28850E I 3235900E DOC Select place Position the TP28850E so that there is enough space for the fan in the instrument s base to produce sufficient cooling air Otherwise insufficient cooling causes damage and destructs the instrument Note Put the TP28850E into vertical position for calibrating to warrant optimal temperature spreading and transmission The testing temperature set last remains stored in the TP28850E After starting the TP28850E the temperature of the heating block rises up to that one stored Procedure e Apply m
17. use Check the fuse at mains input when switching on the TP28850E and in case the fan does not start nothing appears on display Procedure Danger Electric voltage injurious to health Before exchanging the fuses disconnect mains plug e Disconnect mains plug e Put iinstrument s topside down e Pull out mains cable e Using a screw driver turn out mains cable cap e Remove cap Now fuse T12 5 250V is visible e Check fuse Attention Avoid destruction of the TP28850E by only using a T12 5 250V 12 5A slow 250VAC e n case of defect fuse can be exchanged for spare one in the cap e Exchange fuse and refix cap 2 Electronics fuse Check electronics fuse when switching on the TP28850E and nothing appears on display Procedure Danger Electric voltage injurious to health Before exchanging the fuses disconnect mains plug February 01 18 User Manual Maintenance and Care Sika TP28850E e Disconnect mains plug e Loosen all four screws on front plate Fig Electronics unit front plate DU Note Stiff plug and socket connection of electronics unit e Slowly pull electronics unit 1 upward until electronics is disconnected Fig Removing electronics unit Remove electronics unit and reverse Fuse position is now visible Fig Electronics unit rear side 19 3235900E DOC February 01 Sika TP28850E U
18. yed Temperature safety system in case of exceeding limit 2 independently operating safety devices by approx 870 C und 880 C heating voltage switched off Power supply power consumption 230 V 50 60 Hz approx 2000 VA Heating block bores TP28850E TP28850 28E TP28850 200E TP28850 28 200E bore 218 mm 28 mm 218 mm 28 mm depths 100 mm 100 mm 200 mm 200 mm Adapter sleeves for smaller 2 available from 1 5 mm up to 15 5 mm 25 mm in steps of 0 5 mm 3235900E DOC February 98 23 Sika TP28850E Digital interface Dimensions and weight 3235900E DOC User Manual Specification RS232C transmitting scheme 9600 baud 8 data bit 1 stop bit odd parity Dimensions TP28850E 18 28 100 length total of instrumen 407 371 mm total width 283 mm total height incl handle and 462 382 mm cable hairness weight approx 16 kg February 98 24

Precision-Temperature

Contents

Download Pdf Manuals

Related Search

Related Contents