Operating Instructions PTT
Contents
1. Phone 49 0 9343 503 148 Mr Stastny Techn Support 49 0 9343 503 128 Ms Br mel Support a For queries ideas and critique LAUDA DR R WOBSER GMBH amp CO KG Postfach 1251 97912 Lauda Konigshofen Germany Phone 0049 0 9343 503 0 Fax 49 0 9343 503 222 e mail info lauda de Internet http Awww lauda de 20 Appendix YAME0020 30 06 11 PTT 6 6 Accessories replacement parts LAUDA order no PTT cover transparent plastic cover Reduction of temperature changes in the vicinity of the surface and ingress of dust tensiometry wind protec HGH 188 tion reduction of evaporation Sensor for determining the actual temperature DU 711 Sample beaker D 60x32 mm pack of 10 EG 011 Filling and topping up tempering liquid EGP 012 PTFE stirring rod diameter 4 5 mm Mixing the sample for optimum heat transfer EZ 265 length 15 mm To avoid erroneous shipments please quote the device type and number from the rating label The rating label is located on the back panel of the device Description Application function Type PTT Nr LMTZ831 09 0001 00 240 V Anba H LAUDA OR R WOBSER GMBH CO KG 97922 LAUDA Konigshofen Pfarstr 41 43 Germany Rating label with device details LM72Z831 nn nnnn YAME0020 30 06 11 Index 21 LAUDA H Index reen 21 A lee 11 Ambient CONGItIONS ccccceeceeeeeeeeee esse eeees 18 Ambient temperature2. cccccccsecceeeeeeeeeeees 17 Basie DMNGCIDICS E 8 Checking the filling level 16 CNS GWAC RE 19 COMMON KINO EE 9 ele Olne ee 17 E ele die OULD EE 17 DIN EN G 10o10 1 2001 18 DIN EN G710O10 23 010 20023 18 Bel EE 9 Error re EE 18 S lve lei ee ne EE 9 Sleeve 17 Indicator COOHNO DNAS EE 9 heating ie 9 Indicators actual LEET een 9 eieiei 9 MANUNCUON EE 9 set point temperature ccccccseeeccseeeecsanseccsussecnaneeeesaness 9 Jet He WEE 11 Jee e 10 Magnetic stirrer speed seting TIC nonesa a a aeae testes 14 EN EE 19 Measurement probe n nonnanonnenoennnnnnnnnnnnnenne 10 Minimum filling amount cee ce cece eeee ees 12 22 PTT One knob operation o noenonnonnennennennenneneennne 15 Operating e ut ge EE 9 Operating statuses cccccccececseeeeeeeeeeees 14 Operating Temperature 17 Elei ATOM EE 11 15 E EE 17 Power CONSUMPTION cccceeceeeeeeeeeeeeeeeees 17 Protection system cccccceccssecseesseeseeeseeeseeees 8 Rating fe 20 Relative bumtditvy 17 Repair mmtormaton 20 Replacement parts 20 21 Resolution ele 17 Setting resolution ccccccssecccnssecccsnneecnsuseecsauseensnnseenaes 17 Safety information cccccccccseeeceeeeseeeseeeeeaees 6 additi ONA EE 6 GEOI EE 6 ett TEE 3 Serial number device cece eeeeceececeeeeeeeeeess 20 EE E ZU DEMVICE COMAC oriee e 20 Set point temperature seling EE 13 Standby MO
3. nettoy correctement que les tubulures sont ferm es et qu il n y a aucun produit toxique agressif radioactif ou autre produit nocif ou dangeureux dans la cuve Stempel Datum Betreiber Seal Cachet Date Date Responsible person Personne responsable Formblatt Form Formulaire Unbedenk doc LAUDA DR R WOBSER GmbH amp Co KG Erstellt published tabli LSC PfarrstraBe 41 43 Tel 49 0 9343 503 0 And Stand config level Version 0 1 D 97922 Lauda K6nigshofen Fax 49 0 9343 503 222 Datum date 30 10 1998 Internet http Awww lauda de E mail info lauda de UNBEDENK DOC
4. inform the LAUDA After unpacking first check the unit and accessories for any transport damage If the de Service Centre or an authorised LAUDA representative Please check the package contents for completeness PTT Thermostating Unit Cover Power supply unit Temperature sensor Beaker 60 Filling syringe Magnetic stirring rod 15 mm D 4 5 This manual YAME0020 30 06 11 Package contents 7 LAUDA 3 1 3 2 PIT Device description Basic principles The PTT Thermostating Unit facilitates the exact temperature stabilisation of small amounts of liquid up to 60 ml from 5 C to 80 C The liquid can be stirred if required using an inserted magnetic stirring rod included in the supplied items For vibration free measurement applications all electrical components fans magnetic stirrer power electronics for the thermostating unit can be deactivated in the standby mode The PTT uses four Peltier elements spread uniformly around the circumference of the beaker Heat is supplied or extracted depending on the tempering situation Ambient air enters the device through the intake areas ribbed regions at the front left and rear right it circulates around the heat exchanger with in the device and leaves the device through the side exit areas In order to ensure perfect air circulation neither the ventilation opening
5. switched off at any time by resetting the toggle switch Three seconds after entering a new set point temperature the current sample temperature is automatically displayed If an error code is indicated please refer to the appropriate section gt 6 1 YAME0020 30 06 11 Installation and operation 13 LAUDA 9 Setting the speed of the magnetic stirrer occurs by briefly pressing the control knob As long as 14 PTT the LED w 4 is lit the speed can be adjusted by turning the knob steps 1 9 Stirrer activity is indicated by the flashing of the control knob w Vp a The magnetic stirrer is switched off by pressing the control knob again step 0 Three seconds after entering a new speed the current sample temperature is automatically dis played again Three LEDs indicate the three operating statuses Malfunction Heating and Cooling Malfunction Heating Cooling With Malfunction please note the error code indicated in the display switch off the device at the power supply unit and refer to the error messages 6 1 Installation and operation YAME0020 30 06 11 PTT LAUDA 4 2 Operation The PTT Peltier Thermostating Unit can be easily operated due to the intuitive one knob operation and clear visual feedback Standard situation after switch on and in operation Display corresponds to ACTUAL temperature Flashes during stirrer operation Heati
6. 3 Operating and functional controls All operating and functional controls on the PTT are situated at the front A 3 figure 7 segment display indicates the actual and set point temperatures the stirrer speed and error messages Three LEDs positioned close to the display specify the figures shown in the display Indicators located be low the display represent the operating statuses The control knob has rotary and button functions the operation of which is described in Section gt 4 2 Display actual temperature set point temperature set stirrer speed error code Indicator for actual temperature C Indicator for set point temperature 9 Indicator for rotational speed Control knob Set point adjustment by rotation press to set the magnetic stirrer Indicator for malfunction Indicator for heating phase 1 2 3 4 5 6 T 8 YAME0020 30 06 11 Device description 9 Indicator for cooling phase PTT LAUDA 3 4 Interfaces and sockets The PTT is equipped as standard with the following interfaces and sockets Power socket for connection to an external power supply unit Sensor socket for connection to an external Pt100 measurement probe Command socket is actually not active 2 10 Device description YAME0020 30 06 11 PTT 4 Installation and operation 4 1 Installation 1 Site the Peltier unit on a firm uncluttered surface Maintain at least 6 centimetres spac
7. LAUDA Operating Instructions PTT Peltier Thermostating Unit LMTZ 831 Valid from series 1 LAUDA DR R WOBSER YAME0020 Version 01 04 09 GMBH amp CO KG Postfach 1251 97912 Lauda K nigshofen Germany Phone 49 09343 503 0 Fax 49 09343 503 222 e mail info lauda de Internet http www lauda de HIT LAUDA First some safety information A Before you operate the device thoroughly read through all the instructions and safety information in Section 1 If you have any queries please feel free to call us Follow the instructions about siting operation etc as only then can improper handling of the device be eliminated and the full warranty coverage maintained The device is switched off using the toggle switch on the external power supply unit The device and its internal parts can be damaged by dropping vibration The device may only be operated by appropriately instructed personnel Never operate the device without tempering liquid The operating instructions contain additional safety information which is identified with a triangle with an exclamation mark A Read and follow the instructions Ignoring the instructions can lead to severe consequences e g personal injury damage to property or the device itself Special symbols Be careful This sign is used when improper handling can lead to property damage and or personal injury Fe Note Here something in particular needs
8. Us soisiu a 16 Technical data ssnin 17 Temperature accuracy cccceecceeeeeeeeeeeeeeees 17 Temperature for storage c ccccceeceeeeeeeees 17 Tempering liquid RE 11 Transport damage T te EE 17 YAME0020 30 06 11 BESTATIGUNG CONFIRMATION CONFIRMATION LAUDA An To A LAUDA Dr R Wobser LAUDA Service Center Fax 49 0 9343 503 222 Von From De Firma Company Entreprise StraBe Street Rue Ort City Ville Tel Fax Betreiber Responsible person Personne responsable Hiermit best tigen wir da nachfolgend aufgef hrtes LAUDA Ger t Daten vom Typenschild We herewith confirm that the following LAUDA equipment see label Par la pr sente nous confirmons que l appareil LAUDA voir plaque signal tique Typ Type I Type i i ie mit folgendem Medium betrieben wurde was used with the below mentioned media a t utilis avec le liquide suivant Dar ber hinaus best tigen wir da das oben aufgef hrte Ger t sorgf ltig gereinigt wurde die Anschl sse verschlossen sind und sich weder giftige aggressive radioaktive noch andere gef hrliche Medien in dem Ger t befinden Additionally we confirm that the above mentioned equipment has been cleaned that all connectors are closed and that there are no poisonous aggressive radioactive or other dangerous media inside the equipment D autre part nous confirmons que l appareil mentionn ci dessus a t
9. age We J romy To protect the unit against overheating it is equipped with a bimetallic protection device This device completely isolates the unit from the power supply when the temperature of the receiving container ex ceeds 90 C In this case please contact the Service Department Ambient conditions The use of the thermostating unit is only admissible under the conditions stated in DIN EN 61010 2 010 2003 and DIN EN 61010 1 2001 e The device may be set up and operated only indoors e Place on a sealed flat non slip and non flammable siting base e For proper operation it is essential to conform to the ambient temperature requirement refer to Technical data e Relative humidity refer to Technical data e Overvoltage Category Il and transient overvoltages according to Category Il Appendix YAME0020 30 06 11 PTT LAUDA 6 3 Materials The bath which comes into contact with the tempering liquid consists of anodised aluminium A tempering liquid compatible with the material is decalcified water The black cover plate is manufactured from tempered moulded material similar to PP ABS The material is thermally stable up to 130 C The cover panels fitted to the sides are manufactured from material similar to ABS The transparent top cover consists of PX522HT temperature resistant up to 110 C Damage to the device due to the use of liquids which can modify the above mentioned ma terials is in n
10. ck When the beaker is inserted the tempering liquid rises up the outer wall of the beaker The highest possi ble filling level is desirable for the best possible heat transfer gt 4 3 Checking the filling level 7 Insert the temperature sensor if required use the stirring rod and put the cover in place ee The temperature sensor should be immersed in the sample by at least 3 millimetres When inserting the beaker the tempering liquid level should ideally rise up to about 8 millimetres above the standing surface of the beaker 12 Installation and operation YAME0020 30 06 11 PTT LAUDA 8 The PTT is put into operation by actuating the switch On I In the default setting the device tempers the liquid to 25 C On starting the device automatically carries out a self test All indicators on the front display are activated for 2 seconds for checking purposes The display indicates the current sample temperature LED C is lit The set point temperature is set by simply turning the control knob The LED 9 lights as long as the figure for the set point temperature is displayed Provided the user does not change the settings the device operates with the standard values Tset 25 C and o O corresponds to deactivated stirrer When working without a stirring rod the stirrer should remain deactivated Stirrer activity is indicated by the flashing of the control knob The device can be
11. ing on all sides air access 2 With the switch set to the 0 position connect the power supply unit to the electrical mains network 100 240 V and connect the plug securely to the Peltier device Power 3 Connect the temperature sensor to the Peltier device Sensor 4 Fill the thermostatic block with 6 6 5 ml of tempering liquid using the filling syringe The thermostatic block should be sufficiently filled but not overfilled Too little tempering liquid reduces the heat transport and can lead to the system switching to EMERGENCY OFF The devices are rated for operation with non flammable and flammable liquids according to DIN EN 61010 2 010 Watch the filling level Generally decalcified water is used as the temper ing liquid Please ensure that the evaporation rate re mains low so that sufficient tempering liquid is always available Please note that with an unsuitable choice of medium condensate interacts with the sample in your beaker Please ensure that your tempering liquid does not interact with the thermostatic block material ano dised aluminium YAME0020 30 06 11 Installation and operation 11 PTT LAUDA 5 Fill the beaker with at least 40 ml of sample liquid and put it in place The minimum filling amount is 40 ml It is only then that the immersion depth required by the tem perature sensor is ensured 6 Place the filled sample beaker in the thermostatic blo
12. m the type of material for which the temperature is to be stabilised e g by exceeding or undercutting certain temperature thresholds or with the fracture of the sample liquid container and reac tion with the tempering liquid It is not feasible to include all possible situations They remain essentially subject to the judgement and responsibility of the operator The device may only be used as intended that is as described in these operating instructions This in cludes operation by instructed specialist personnel The device conforms to the EMC standard DIN EN 61326 1 Class A The device is not designed for use under medical conditions according to DIN EN 60601 1 or IEC 601 1 Additional safety information e Only connect the device to a mains socket having a safety earth conductor e At higher operating temperatures parts of the beaker receptacle can take on surface temperatures of over 70 C Be careful when touching the device gt Danger of burns e Withdraw the mains plug of the PTT unit before cleaning servicing or moving it e Have repairs to the PTT carried out only by specialists e Figures for temperature accuracy and display accuracy apply under normal conditions according to DIN 12876 safety Information YAME0020 30 06 11 PTT LAUDA 2 Package contents vice is found to be damaged the haulage or postal company must be immediately in formed so that verification can take place In this connection please
13. ng phase Cooling phase i CL Magnetic stirrer activated deactivated Set point tem perature Q is being set 0 80 C Stirrer speed is being set Display 1 slow 9 fast New settings are automatically accepted after approx 3 seconds and the device then resets to the adapted standard operating situation YAME0020 30 06 11 Installation and operation 15 PTT LAUDA 4 3 Checking the filling level The optimum amount of tempering liquid is 6 5 ml With an insufficient filling level for the tempering liquid it can be topped up even with the beaker in place To do this the required amount of tempering liquid is introduced through the filling hole using the filling syringe It is desirable to have a sufficiently high filling level of tempering liquid for the best possible heat transfer With longer tempering processes visually check the filling level 4 4 Switching off e The PTT can be switched off at any time by actuating the switch Off O 4 5 Standby mode The PTT can be put into a standby mode To do this the control knob is held pressed for at least 3 se conds In this way all electrical components fans magnetic stirrer power electronics for the thermostating unit are deactivated The standby function is used for periods in which the beaker is removed from the system e g when changing the sample liquid or for measurement pha
14. o case covered by the warranty from LAUDA Dr R Wobser GmbH amp Co KG The resulting damage can on no account be rectified free of charge 6 4 Cleaning Cleaning can be carried out with water with a few drops of a surfactant washing up liquid added and with the aid of a damp cloth Withdraw the mains plug before cleaning the device It is essential to avoid the in gress of water into the ventilation slots and the sockets Be careful when using the device in the TD 3 Tensiometer No residues of wash ing up liquid should enter the measuring beaker YAME0020 30 06 11 Appendix 19 HIT LAUDA 6 5 Repair information service Withdraw the mains plug before all servicing and repair work Have repairs carried out only by specialists When sending in a device please ensure that it is carefully and properly packed LAUDA cannot be held liable for any damage due to improper packing If you want to send in a device for repair it is essential to first consult the LAUDA Instrument Service SMG or an authorised representative When ordering replacement parts please state the type of device and number on the rating label on the rear panel This avoids queries and erroneous shipment The serial number is composed as follows e g LMT850 09 0001 LMT850 Article number 09 Year of manufacture 2009 0001 Incremental numeration Your contact for maintenance and expert service support LAUDA Instrument Service SMG
15. s nor the exit areas should be re stricted or covered The PTT is equipped with a protection system which safeguards the power electronics and Peltier ele ments from thermal overload A bimetallic switch fitted internally in the beaker receptacle provides additional protection from the con tainer overheating above 90 C Temperature display and control Measurements and setting values as well as operating statuses are displayed on the front of the PTT using a 3 figure 7 segment display 8 8 8 The entry of the set value and other settings occurs using the button rotary function of the control knob The Pt100 temperature sensor for the acquisition of the momentary sample temperature is connected via the Sensor socket A high resolving A D converter processes the measurement Further measure ment processing occurs via a special control algorithm which implements the control of the Peltier elec tronic tempering system To measure the temperature of the samples reliably the Pt100 sensor must be immersed by at least three millimetres in the sample liquid With thermostating processes extended over a longer period the reduction in level due to evaporation must be taken into account as necessary The liquid should be kept in motion by an inserted stirring rod in order to facilitate improved heat transport and to ensure a uniform temperature throughout the whole liquid volume Device description YAME0020 30 06 11 PTT 3
16. ses which require a vibration free environment The device must be put into the standby mode when the temperature sensor is out of the sample liquid for longer than two minutes in order to prevent overheating of the system and triggering of the EMERGENCY OFF function Return to the operating mode occurs by again pressing the control knob for at least three seconds 16 Installation and operation YAME0020 30 06 11 HIT 5 Technical data PTT Series A Cooling output 25 C Comets xD em one O Comos O O e w o o l ooo o EECHER EE Power consumption Technical modifications reserved Heating and cooling curves Heating curve Cooling curve Sample water 50 ml Sample water 50 ml Transmitter medium water cover Transmitter medium water cover 70 25 65 ob 20 55 4 50 15 45 4 40 a5 10 30 25 f 5 0 5 Time min 10 d s 10 Time mn Technical modifications reserved Heating and cooling curves bath closed tempering liquid water Tamp 21 C t min T C YAME0020 30 06 11 Technical Data LAUDA 6 6 1 6 2 18 PIT Appendix Error messages The Self Check Assistant of your PTT Thermostating Unit monitors numerous device parameters and issues error mes sages if necessary All messages are indicated in the display using error codes which are interpreted according to the error list and can be rem edied as required mess
17. the reader s at tention In certain circumstances this includes a note about a hazard gt Reference Refers to further information in other sections Technical modifications reserved YAME0020 30 06 11 Contents 3 HIT e LAUDA Table of contents First some te Cl el Ee EE 3 1 Safe UI VEO IT TS 6 1 1 GENE fal Salely Te ge EE 6 1 2 AGAINONal SACL INTOLMALON EE 6 2 Package COMLCIES corron a H 3 DEVICES E le d EE 8 3 1 ASIC eid lui ei lei 8 3 2 Temperature display and Control 8 3 3 Operating and TUNCIONalCOntrolS meien tac beleaeet eich EE 9 3 4 MEET 10 4 Installation and Ree EC EE 11 4 1 H CAN ei DEE 11 4 2 OPETAN aee adore a E a A 15 4 3 CHECKING the TINMG ME EE 16 4 4 SWEARING OM EE 16 4 5 Standy EEN eebe 16 5 Technical data RE 17 6 eut TK EE 18 6 1 Error Messages osere a a E a E E E E R 18 6 2 ene n e elle te a 18 6 3 Ee EE EE 19 6 4 Cleaning EE 19 6 5 Repa Mo Maton SEVICE EE 20 6 6 Accessories replacement parts EEN 21 H NAEK EE 22 YAME0020 30 06 11 Contents 5 LAUDA 1 1 1 2 PIT Safety information General safety information The PTT Peltier Thermostating Unit cools or heats tempering liquids and sample liquids Hazards arise from this due to high or low temperatures fire and the general hazards due to the application of electri cal energy The user is extensively protected by the application of the relevant standards Further hazard sources can arise fro
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