OPERATING INSTRUCTIONS
Contents
1. Rotate the push turn control until the C symbol flashes With the SET key depressed use the push turn control to set the temperature setpoint to f ex mm mo pa i 2 Delayed switch on setting Rotate the push turn control until the d delay and the symbol flashes With the SET key depressed use the push turn control to set the time f ex BOG hours 3 Hold time setting Rotate the push turn control until the hold and the symbol flashes With the SET key depressed use the push turn control to set the time f ex HDD hours page 11 BASIC 6 Monitoring the programme sequence During the delayed switch on the d symbol flashes and the display alternates between residual time and actual temperature r d d l I delay 6h BE hold 4h Bath does not heat up After the end of the delayed switch on the f symbol goes dark and the bath heats up to the selected setpoint temperature Heating is indicated by the WW symbol delay 6h hold 4h Bath heats up 3 During the hold time the symbol flashes delay 6h hold 4h Bath holds setpoint temperature aie wi and the display alternates between the residual time and the actual temperature A After the hold time has elapsed the 7 symbol 90 C goes dark the heating is switched off and x the display alternates between the actual temperature and ERD delay 6h hold 4h Heating is swi2. housing stainless steel detergents usual in the trade After cleaning and after draining the water the stainless steel tank must be rinsed thoroughly with clear water and dried carefully It is important to ensure that no rusting objects come into contact with the stainless steel bath tank or the stainless steel housing Rust sediments lead to contamination If rust stains caused by contamination occur on the tank surface the affected areas must be cleaned and polished immediately On units with gable cover we recommend that the hinge bolts are oiled from time to time if the bath is used frequently page 15 BASIC 12 Check list for fault rectification Main switch ON Main fuse 15A or instrument fuse T80mA 250V on circuit board no Indication on the display 55167 x has blown Controller faulty Electrical supply interrupted W symbol not alight Ambient temperature too high Temperature in bath above the selected setpoint temperaturer Temperature protection TB has operated Liquid level too low conF Eros test O S En Power module triac faut Ei Power module faulty oo E30 Pt100 temperature probe faulty N E t Communication to power unit interrupted In case of a malfunction contact an authorized service station tor Memmert equipment or please inform the Memmert service department see section 16 In case of queries always specify model and serial number on the rating label 13 Action on supply failure Afte
3. Experts in Thermostatics D p 6 nA Waterbaths WNB 7 45 1 General notes and safety EE 3 ek 122105 916 eee E E E EEE E E R 3 Et aunle te bc mene ne ee ne sinne 4 SS RENE E 5 27 TCC UNC aiME GUI OIC eegen 5 2 3 Note on EMC electromagnetic e net ee een 5 2 4 Brief technical description usseeeeseeeeneeeeneeenennnnnennnnnnnnnnnnnnnnnnen nenne nenne nenne nnen nenne essen 5 Pe SAM Cal ESSE a EE 6 MINS a E EE 6 I A SA SO EE 7 3 2 Ee Ee WA ie E 7 4 Bath construction and OG ION WE 8 4 1 Controls and indications cece ee ec cece cece cece eee e eee e eee e eect err rrrt rre eee dn eee d Ecce dn eee d eset dn eet dn eeeaneeeaan estan 8 A en Le EE 9 ral SEIN ENEE geet 9 43 1 NOTA Dea ee E 10 4 3 2 Delayed switch on EE 10 4 3 3 Hold time of the setpoint Temperature 11 5 Programming example of a programme seOuencgp riitti erite rrt rreri errr rrr rrrE rrene nr 11 6 Monitoring the programme sequence ccccecccc ee ccce ee eeee ee ecee ee rite rrt ee eeeeneeeeeneeeeeeeeeeseeeeesneeeeaneseean ees 12 7 Temperature monitor and protection devices ssisssiussiueriusrit rrit rerit ee eeeeeeeeeeeeeae essen eeeaeeeaneenaans 13 7 1 Mechanical temperature monitor temperature Jmmtter ccc cece cee cceeeeeeeeeeeee estan essen eeeenees 13 Te LONE VE Eege 13 TEE TI ca e EE E hs se ede Asien he ata TROR 13 SUITE CO er Cia CO I cect soccer tree ee ee ee 14 9 Level control special COU OIG een 14 10 Cooling sys
4. blems through dirt or limeresidue page 5 BASIC 2 5 Standard equipment Electronic fuzzy supported PID process controller with delayed programme start and programmable hold time The controller has permanent power matchinig and an autodiagnostic system for rapid fault finding Recessing push turn control for simple operation of bath Visual alarm indication Mechanical temperature limiter TB Class 1 Monitor relay to switch off heating in case of fault High grade stainless steel Pt100 temperature sensor Mat Ref 1 4571 Class A in 4 wire circuit Boiling mode for temperatures above 95 C Special equipment to be ordered separately as accessory flat cover with concentric ring sets gable cover to drain condensate cooling device various racks for test tubes bottles etc 3 Installation space for space for air circula air circula tion tion bh mmm The unit must be placed on a horizontal non flammable surface which cannot tilt The vent openings in the left and back side must remain unobstructed Minimum wall spacing on all sides is 80 mm The minimum spacing from the top of the bath to the next ceiling rack etc is 750 mm BASIC page 6 3 1 Initial start up When the bath is started up for the first time it should be supervised continuously until steady conditions have been reached 3 2 Start up waterbath Mains The mains connection cable must be placed away from any hot surface connec
5. elay The delayed switch on is then activated and the display alternates between the actual temperature and the running time of the switch on delay The time is shown with a negative sign and runs down In this way it is possible to determine at any time how much longer the bath waits until it begins to heat up If no delayed switch on is required it can be de activated by the setting OFF BASIC page 10 4 3 3 Hold time of the setpoint temperature o Adjustment range e 1 min bis 99 59 hrs Setting accuracy hold 6h Fe ee min The bath switches off the heating after Indication accurac accuracy the end of the selected hold time In this lt 10 hrs min case the hold time includes the heating gt 10 hrs Ihr up time Rotate the push turn control until the gt hold and the symbol flashes The duration of the hold time can then be selected with the SET key depressed as described in section 4 3 After the SET key has been released the bath briefly flashes the hold time setting If no hold time has been programmed the hold time is activated immediately E E e Ge BE and the display alternates between the actual temperature and the running time Zi cl of the hold time As with switch on delay the residual time is shown with a negative sign and runs down If no hold time is required it can be de activated by the setting OFF 5 Programming example of a programme sequence 1 Setpoint temperature setting
6. fter the monitor relay may been activated Check the controller for error messages see section 12 and where appropriate contact customer service Example With a setpoint temperature of 80 C if a fault occurs in the power unit faulty triac the bath continues to operate in emergency operation at approx 90 C page 13 BASIC 8 Use of the cover special eauipment Gable cover The gable cover may be ordered as already mounted special equipment should always be closed in order to prevent evaporation of thermostating liquid and to obtain optimal temperature distribution The gable shape of the cover makes sure that condensed water will not drop down into the loads Flat cover For positioning of test flasks on top of the bath a flat cover special equipment may be used The size of the holes in this cover can be adapted to the flasks with ring inserts The rings may therefore only be inserted or taken off if the bath is cooled down Note that during operation the flat cover and the gable cover heat up to the temperature of the thermofluid O Level control special equipment 2 different filling levels can be maintained constant if the unit is fitted with a level control system When using water as thermostating liquid connect the feed pipe with tubing to the mains water supply The drain must be connected with tubing to an appropriate container or sink Make sure that the tubing cannot be clogged or bended and that it continual
7. ly runs downhill Please note that the outflowing water may be hot Supply and drain are indentified by arrows Use temperature observation resistant material for the tubing window l It the second overflow is not required it must be closed with oe supply a sealing cap z dan The evaporation loss can be compensated through a slightly drain open water supply dripping and can be monitored through the observation window The level control system cannot be retrofitted Warning bath hot when operating BASIC page 14 10 Cooling system special eauipment If the waterbath is fitted with a cooling device for quicker cooling of the bath liquid the water supply has to be connected by a hose f ex to a cold water supply line The discharge has to be lead into a drain supply aq Use temperature resistant material for the tubing Please note that the outflowing water may be hot The discharge must be connected with tubing to an appropriate container or sink Make sure that the tubing cannot be clogged or bended and that it continually runs downhill 11 Cleaning and maintenance By regular cleaning of the easy to clean the tank residues are avoided which at continuous influence can impair the outfit and function of the waterbath Please use only detergents and antiliming agents appropriate for stainless steel for the cleaning of the tank and the
8. nated product with the essential protection requirements of the above mentioned EC Directive DIN EN 61 010 1 VDE 0411 part 1 2002 08 EN 61 010 1 2001 DIN EN 61 010 2 010 VDE 0411 part 2 010 2004 06 EN 61 010 2 010 2003 Schwabach 03 07 08 Legally binding signature of the issuer This declaration certifies compliance with the above mentioned directives but does not include a property assurance The safety note given in the product documentation which are part of the supply must be observed page 1 BASIC Standard units are satety approved and bear the test marks B G enk bed LER Sicherheit Ce D ruhna n This product is subject to the Directive 2002 96 EC by the European Parliament and the EU Council of Ministers which concerns Waste Electrical and Electronic Equipment WEEE This product has been put on the market after 13 August 2005 in countries which have already incorporated this Directive into National Law It should not be disposed off as part of domestic refuse For disposal please contact your dealer or the manufacturer Products which are infected infectious or contaminated with health endangering substances are excluded from return Please note also all further regulations in this context S z M lt 16 Address and customer service MEMMERT GmbH Co KG PO Box 17 20 91107 Schwabach Germany Phone 00 49 9122 925 0 Fax 00 49 9122 14585 E mail sales memmert com Internet www memme
9. push turn control until the C symbol flashes The setpoint temperature can then be selected with the SET key depressed as described in section 4 3 After releasing the SET key the display briefly flashes the setpoint The display then changes to the actual temperature and the controller starts to control to the selected setpoint temperature During heating the symbol flashes in proportion to the actual heater power In order to reach water temperatures above 95 C boiling point waterbaths are provided with the boiling mode If this is selected the heating Is switched on permanently Activating the boiling mode by rotating the push turn control beyond the maximum value until the display shows CCC The setting boiling mode is not stored permanently After the bath is switched off and on again the controller shows again the previously selected setpoint 4 3 2 Delayed switch on Adjustment range WS 1 min bis 99 59 hrs Setting accuracy 1 min SE SE Indication accuracy The bath starts to heat up to the previously lt 10 hrs I min selected temperature only after the time of gt 10 hrs thr the switch on delay has elapsed Rotate the push turn control until the delay and the symbol flashes The duration of the delayed switch on can then be set with the SET key depressed as described in section 4 3 After the SET key has been released the bath briefly flashes the setting of the switch on d
10. r a failure of the supply operation continues with the previously set parameters 14 Glossary nominal temperature themaximum adjustable setpoint temperature of the bath ambient temperature the continuous temperature of the room in which the bath is set up BASIC page 16 15 CE Contormity of Declaration memmerr EC Declaration of Conformity Manufacturer s name and address MEMMERT GmbH Co KG u ere Rittersbacher Stra e 38 D 91126 Schwabach Product Waterbath Type WNB Sizes 7 10 14 22 29 45 Nominal voltage AC 230 V 50 60 Hz alternative AC 115 V 50 60 Hz The designated product is in conformity with the European EMC Directive 2004 108 EEC including amendments Council Directive of 03 May 1989 on the approximation of the laws of the Member States relating to electromagnetic compatibility Full compliance with the standards listed below proves the conformity of the designated product with the essential protection requirements of the above mentioned EC Directive DIN EN 61326 2004 05 EN 61326 1997 EN 61326 A1 1998 EN 61326 A2 2001 EN 61326 A2 2003 The designated product is in conformity with the European Low Voltage Directive 2006 95 EEC including amendments Council Directive on the approximation of the laws of the Member States relating to Electrical equipment for use within certain voltage limits Full compliance with the standards listed below proves the conformity of the desig
11. rt com Customer service Phone 00 49 9122 925 143 or 00 49 9122 925 126 E mail service memmert com In case of queries always specify model and serial number on the rating label by MEMMERT GmbH Co KG BASIC page 18 17 Index A address 18 alarm symbol 13 ambient conditions 4 ambient temperature 16 autodiagnostic system 5 16 B bath construction 8 boiling mode 4 boiling mode activate 10 brief technical description 5 C CCC 10 CE conformity of declaration 17 check list for fault rectification 16 chemical compatibility 5 cleaning 15 contaminations 7 15 controls 8 cooling system 15 cover flat 14 cover gable 14 customer service 18 D deionised water 7 delayed switch on 10 DIN 12880 13 disposal 18 draining 7 drain hose 14 15 drain valve 7 electrical equipment 5 electromagnetic compatibility 5 evaporation loss 14 F fault rectification 16 filling 7 G glossary 16 H heating 8 hinge bolts 15 hold time of the setpoint temperature 11 indications 8 initial start up 7 installation 6 L level control system 7 14 liquid level 7 low level protection 13 M maintenance 15 Mat Ref 1 4301 5 material quality 5 monitoring the programme sequence 12 monitor relay 13 monitor unit 13 N nominal temperature 4 16 P parameter settings 9 polluted fluids 7 programming example 11 Protection Class 1 13 Pt 100 temperature sensor 5 R rust deposit
12. s 15 S safety notes 3 setpoint temperature 16 setpoint temperature selection 10 standard equipment 6 start up supply failure 16 switching on the bath 9 page 19 T TB 13 technical data 4 temperature fluctuation 5 temperature limiter TB 13 temperature measurement 5 temperature monitor 13 thermofluid 7 transport 3 U uniform temperature distribution 8 W water circulation 8 working temperature range 4 BASIC Memmert GmbH Co KG Po Box 1720 D 91107 Schwabach Tel 49 0 9122 925 0 Fax 49 0 9122 145 85 E Mail sales memmert com www memmert com 08 06 2009 Waterbath BASIC englisch D10329
13. se 200 mA on 115 V e When connecting a MEMMERT bath to the electrical supply you have to observe any local regulations which apply e g in Germany DIN VDE 0100 with FI protection circuit 2 3 Note on EMC electromagnetic compatibilit This product is intended to operate on a supply network with a system impedance Z_ at the transfer point building connection of 0 292 Ohm max The user has to ensure that the product is only operated on an electrical supply network which meets these requirements If necessary details of the system Impedance can be obtained from the local electricity supply authority Note Any work which involves opening up the bath must only be carried out by a properly qualified electrician 2 4 Brief technical description MEMMERT waterbaths are electrically heated and electronically controlled The temperature of the thermostating liquid is continuously controlled by a microprocessor controller with pulse package control Electronic microprocessor PID controller with continuous power matching and autodiagnostic system with fault indicator see section 12 integral timer for digital programme time selection The temperature is measured using a Pt 100 temperature sensor 4 wire circuit The accuracy Is as follows ee eee Setting accuracy Temperature fluctuation The components of temperature control are controlled by integrated malfunction recognition The heaters are installed outside therefore no pro
14. tched off BASIC page 12 7 Temperature monitor and protection devices 7 1 Mechanical temperature monitor temperature limiter All waterbaths are fitted with a mechanical temperature limiter TB Protection Class 1 to DIN 12880 It the electronic control unit should fail during operation and the fixed factory set maximum temperature Is exceeded by approx 30 C the temperature limiter switches off the heating permanently as a tinal protective measure The A symbol lights up continuously as warning 7 2 Low level protection In addition to its function as overtemperature protection the TB also operates as low level protection i e the heating is switched off permanently if the liquid drops below a certain level As a warning the A symbol lights up continuously Fault rectification after the TB cut out has been activated 1 Switch off the bath and allow it to cool down 2 Rectify the fault e g top up the liquid replace temperature probe and where appropriate contact customer service 3 The bath is again ready for operation only after it has cooled down and after the fault has been rectitied 7 3 Monitor relay In addition the bath is equipped with an electronic monitor relay If a fault occurs during operation or if the selected setpoint temperature is exceeded by 10 C then the monitor relay continues control of the heating at this temperature in emergency operation The A symbol tlashes as warning Fault rectification a
15. tem special egupment rtrt e rrit rre rre r terrre EEEE EEEEPEEPEEEEEEEE nennen 15 11 Cleaning and Va Ee 15 12 Check list Tor Taut e te EE 16 13 Action On supply Tree een 16 E Ee 16 IK SONI Oo Dad eee ONY EE 17 16 Address and customer servlce ee cce ee eee ee eee en eeeeneeeeneeeeeeeeedeeeed essed essen eeegeeeegeeeeeeeeeneeeaeeeeaneees 18 le EE 19 BASIC page 2 1 General notes and safety notes You have purchased a technically fully proven product which has been produced in Germany with the use of high grade materials and the application of the latest manufacturing techniques it has been factory tested for many hours For this waterbath we guarantee spare parts to be available up to 10 years Observation of the Operating Instructions is necessary for faultless operation and for any possible claims under warranty If these Instructions are disregarded all claims under warranty guarantee and indemnification are excluded This mark on the product means Note Operating Instructions Warning bath hot when operating The right to technical modifications Is reserved Dimensional details are not binding 1 1 Transport Always use gloves It the units WNB 22 to 45 have to be carried 2 persons are required Place the bath accurately horizontal and not on an inflammable support page 3 BASIC 2 Technical data Usable bath width B mm Usable bath depth C mm Housing length D mm Housing width E mm Ho
16. temperature display delay symbol heater symbol delayed switch on eater symbo hold symbol hold time alarm symbol SET key push turn control BASIC page 8 4 2 Switching on The bath is switched on by pressing the push turn control and can be operated in connection with the SET key KE og Bath switched off The push turn control is pushed in and protected against damage 4 3 Setting the parameters A parameter can be selected by rotating the push turn control all other parameters are then dimmed The selected parameter flashes brightly and can now be altered with the push turn control while holding down the SET key protection against unintentional alteration If the push turn control is rotated quickly the setpoint is altered in large steps with slow operation it is altered in single steps After the SET key has been released the newly set value is stored Further rotation of the push turn control selects the next parameter Rotation of the push turn control selects the following parameters in the order indicated to be altered as described above 1 Temperature setpoint 2 Delayed switch on 3 Hold time of the setpoint temperature page 9 BASIC 4 3 1 Temperature setpoint d Adjustment range SES 10 C to 95 C or ca ODC with activation of the boiling mode Setting and indication accuracy The bath starts to heat up immediately ut to the set temperature Rotate the
17. tion Filling Tu Max water level eet min water level E SH b ia i e at H Y drain valve In order to garant the high quality of the stainless steel it is recommended by the steel producer to fill the waterbath with deionised water IMPORTANT The bath has to be filled up to a level between the two markings at the right side of the tub Waterbaths can be fitted with a level control system see section 9 Draining The tank can be drained through the drain valve The thermostating fluid must be cooled to room temperature before draining Drain the fluid either directly into an appropriate container or connect an appropriate hose to the drain valve NOTE Polluted fluids may not be drained directly into the public wastewater system If the thermostating fluid is polluted please make sure that it will be properly filtered or dumped according to the applicable regulations Operation with non flammable thermostating liquids only page BASIC 4 Bath construction and operation relatively largest heat loss since minimum heat loss since furthest away from the heated ribs very close to the heated ribs pe P bath N LZ gl heating elements The heating positioned on three sides around the tank ensures a natural water circulation of the liquid inside thus securing an optimal uniform temperature distribution 4 1 Controls and indications time symbol
18. using height with flat cover F mm Housing height with gable cover G mm Weight kg Current consume A Power WI 2 Ambient conditions Ambient temperature 5 C 40 C rh max 80 no condensation Overvoltage Category II Contamination degree 2 Setting temperature range 10 C to 95 C with activation of the boiling mode up to 100 C see section 4 3 1 Setting accuracy Indication accuracy Working temperature range 5 C above ambient temperature to nominal temperature maximum temperature see rating plate BASIC page 4 2 1 Material quality Memmert is using stainless steel Mat Rer 1 4301 for the external casing as well as for the interior an outstanding material because of its high stability optimum hygienic features and corrosion resistance against many not all chemical combinations Attention e g at chlorine combinations The load has to be tested for its chemical compatibility with the materials mentioned above A material compatibility table covering all these materials can be requested from MEMMERT WARNING Always pull out the supply plug before opening the bath cover 2 2 Electrical equipment Operating voltage see rating label 50 60 Hz Protection Class 1 i e operating isolation with ground connection to EN 61 010 Protection IP20 to DIN EN 60 529 Interference suppression to EN55011 Class B Bath protected by a fuse 250V 15A fast blow Controller protected by a 80 mA fu
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