Refrigerating Circulator KH-5 user manual (English)
Contents
1. F1 F2 F2 see chapter 13 4 gt pump motor runs the bath liquid is circulated The cooling device is switched on via it s own switch for cooling 27 at the front The compressor starts with a slight jerk Only activate cooling device if cooling is actually required 13 2 Heating control lamp The display 4 lights up when the heating is switched on set temperature is higher than the actual temperature gt display 4 lights up constantly during the heating up phase display 4 flashes on and off during the control phase The display 4 does not light up if the heating is not activated set temperature is lower than the actual temperature 20 Manual_KH 5_Ver00 Excess Temperature Protection 13 3 Adjusting the variable set temperature 1 Press the menu button 3 gt Aleft justified S appears the small display 5 for set temperature adjustment Increase 7 or decrease 4 the value shown in the display 6 with the buttons 7 The first degree of temperature change is thereby passed slowly and thereafter the rate of temperature change in the display is five times faster 3 Press the enter button 8 gt The selected value is stored as new set temperature and activated cP The new value is not saved until the Enter button has been pressed The circulator continues to use the old set value The dis2. Unpacking Setting Up 6 2 Applications Heating and refrigerated circulators For temperature controlling closed temperature control circuits such reactors heat exchangers or similar objects Separate open vessels cannot be temperature controlled as these circulators are only equipped with a pressure pump 7 Unpacking Setting Up 7 1 Transportation damage Notify carrier forwarding merchant railroad etc Compile a damage report Before return delivery Inform dealer or manufacturer see chapter 21 Small problems can often be dealt with on the spot 2 Ambient conditions according to DIN EN 61010 indoors max 2000 meters above sea level ambient temperature 5 40 C relative humidity max 80 31 C gt 50 40 C excess voltage category Il contamination level 2 N 7 3 Resting time after transportation As we can unfortunately not guarantee that our refrigerated circulators are always transported according to our recommendations i e upright lubrication oil can leak from the compressor into the cooling circuit If the refrigerated circulator is started up whilst still in this state the compressor may be damaged to the lack of oil Therefore A Rest the unit for 24 hours after setting up 7 4 Ventilation q gt Keep all ventilation grids 26 free from obstruction to ensure unhindered air circulation Blocked ventilation grids lead to increase
3. biometra Refrigerating Circulator KH 5 Order No 043 400 230 V Order No 043 490 115 V Manual March 2008 Manual_KH 5_Ver00 Warning Please read these instructions carefully before using this apparatus Biometra biomedizinische Analytik GmbH Service Department Rudolf Wissell Str 30 Rudolf Wissell Str 14 16 D 37079 Gottingen D 37079 Gottingen Germany Germany Tel 49 551 50686 0 Tel 49 551 50881 10 or 12 Fax 49 551 50686 66 Fax 49 551 50881 11 e mail info biometra de e mail service biometra de internet http www biometra de Table of Contents 1 65 5 22005 3 1 1 SYMBOLS USED IN THIS MANUAL zuununnnnannnunnunnnnnnnnnnnnnnnunnnnan nun 3 1 2 SYMBOLS USED ON THE UNIT 3 2 QUALITY 55 5 3 YOUR CONTACTS AT 5 4 TEST GERTIEIGCATE 2 1 1 aaa 6 5 SAFETY NOTE O 2 4 7 6 UNIT DESCRIPTION 10 6 1 SAFETY FEATURES 11 6 2 nennen nenn 12 7 UNPACKING SETTING 4 7 12 7 1 TRANSPORTATION DAMAGE 12 7 2 AMBIENT CONDITIONS ACCORDING TO DIN 6101
4. see chapter 9 2 12 3 Changing the mains plug e g for Great Britain This should only be carried out by qualified specialist personnel The mains cable wires have the following colors Brown Live Blue Neutral Green Yellow Earth 12 4 Fuses on the unit All units are equipped with automatic thermally triggered fuses If the fuse 12 has triggered the fuse does not have to be exchanged resetting suffices a white marking is visible a certain cooling down time should be allowed approx 5 min before the dip switch can be pressed again Do not use tools do not use force Both destroy the fuse If the fuse should be triggered again after resetting the unit probably has a defect In this case the unit should be sent in for servicing 19 Manual_KH 5_Ver00 Excess Temperature Protection 13 Operating 13 1 Switching on 1 Set the excess temperature protection clearly above the desired operating temperature using the dial 13 2 Switch the circulator on at the mains switch 1 This causes gt Display 6 briefly shows the device identification and thereafter the version number of the operating system software e g 0 11 and after that the actual temperature at the location of the control sensor is displayed gt The display 5 shows which one of the four adjustable set values is currently activated set temperature S or one of the fixed temperatures
5. An excess of antifreeze deteriorates the temperature accuracy due to its high viscosity Important Biometra takes no responsibility for damages caused by the selection of an unsuitable bath liquid 16 Manual_KH 5_Ver00 Filling 10 2 Filling with heat transfer liquid When working with water or water with antifreeze Fill the internal tank with about 3 6 liter of heat transfer fluid Use the filling port at the top left corner of the unit Adjust carefully to the max level and check the level regularly If level is below minimum you need to refill Below the min level the cooling capacity is decreased significantly External systems included within the circulating circuit have to be filled with the same heat transfer liquid in order to avoid too much liquid being drawn from the internal bath a The bath level should be checked when the preset temperature has been reached Quite often closed external systems cannot be prefilled as suggested In this case the internal bath of the unit has to be filled to the max level After starting the unit the pump will feed the necessary liquid to the external system Should the demand be higher than the volume difference between high and low the low liquid level sensor will be activated and the pump switched off In this case 1 Replenish the liquid 2 Reset the unit Depress the key 2 at the front unit starts up again 3 Repeat t
6. High and low ration mode values Sand tion factors cS temperature temperature F1 to and c1 to c3 resolution etc limits 1 Switch to function mode by pressing the menu button 3 several times until display 5 shows FU 2 Switch to the desired function SOLL RTA CON or H L with the arrow buttons 7 Press the enter button 8 to confirm the selection made 3 Move around through the submenus with the menu button 3 see chapter Menu Tree 4 A further press of the menu button 3 quits function mode and returns to display ofthe actual temperature Display 6 always returns automatically to actual temperature display after a short time END is provided to skip function mode without making any settings 15 1 Set value S and fixed temperatures F1 to F3 The adjustment has already been made in chap 13 3 and 13 4 In the function mode it is also possible to adjust and change these set values without activating them 1 Press the arrow buttons 7 in the menu FU to change to the SOLL function Press the enter button 8 to confirm this selection _ 2 Press the menu button 3 to move through the submenus S F1 to F3 the procedure for making adjustments is the same as in chapter 13 3 1 _ A correcting factor should be associated with each value S amp cS 1 amp c1 see chapter 15 2 24 Manual_
7. Switch to tA with button 3 2 Choose the resolution 0 1 or 0 01 C with the buttons 7 and then press the button 8 to confirm 0 01 C resolution is available only in the display range from 9 5 to 99 5 C 28 Manual_KH 5_Ver00 Configuration 15 7 Adjusting temperature limit values The setting range of the operating temperature of the circulator can be limited if the application requires this This is not a safety element but merely an aid to help avoid user faults when operating the unit The excess temperature protection must be set separately Change to the function H L with the arrow buttons 7 in the menu FU Then press the enter button 8 to confirm the selection Press the menu button 3 The small display 5 shows LL Low Limit temperature value Set the desired limit value with the arrow buttons 7 the lowest possible temperature is 30 C Press the enter button 8 The chosen value is stored as low limit value LL To set the high limit value HL proceed analogously as described for LL HL High Limit The highest possible temperature is 100 C ei it The new value is not saved until the Enter key has been pressed The circulator continues to use the old value Press the menu button 3 again to quit function mode and return to display of the actual temperature Or just wait until the dis
8. 0 12 7 3 RESTING TIME AFTER 12 7 4 VENTILATION Es aaa EE 12 8 FUNCTIONAL AND OPERATING ELEMENTS 13 8 1 TEMPERATURE CONTROL MODULE 5 13 9 CONNECTING HOSES nun 14 9 1 PLASTIC H SES 15 9 2 CONNECTION OF EXTERNAL CLOSED 5 15 10 FILLING WITH BATH LIQUID 4 2 16 10 1 RECOMMENDED BATH LIQUIDS 16 10 2 FILLING WITH HEAT TRANSFER 17 11 DRAINING 18 12 CONNECTING 1 19 12 1 CONNECTING TO THE 19 12 22 CHECKING THE LIQUID 19 12 3 CHANGING THE MAINS PLUG E G FOR GREAT BRITAIN 19 12 4 FUSES ON THE 19 13 OPERATING 2 802 rare 20 13 1 SWITCHING ON 20 13 2 HEATING CONTROL 20 13 3 ADJUSTING THE VARIABLE SET 21 13 4 ADJUSTING THE FIX
9. 0750 1 and IEC 601 1 and should not be operated in rooms used for medical purposes and or in the vicinity of patients Do not move the unit from the position where it was set up during operation or when it is still hot There is a high risk of burns Use only recommended bath liquids and read the MSDS of the suppliers The temperature controlling of external vessels or similar objects with the circulator constitutes normal circulator practise We do not know which substances are contained within these vessels Many substances are dangerous inflammable easily ignited or explosive hazardous to health environmentally unsafe You alone are responsible for the handling of these substances Our advice If in doubt consult a safety specialist Read the product manufacturer s or suppliers EC Safety Data Sheet according to directive 91 155 EEC Read relevant regulations concerning dangerous materials Observe relevant guidelines for laboratories in your country The following measures were taken for the protection of the operator Protection Class according to VDE 0106 1 i e protection against electric shocks by grounding all parts which carry the risk of electric contact The device must only be connected to mains receptacles it with a protective ground Manual_KH 5_Ver00 Safety Notes e Protection IP 20 according to EN 60529 i e regarding the protection against accidently touchi
10. Biometra will be forced to refuse to accept the device The sender of the repair order will be held liable for possible losses resulting from insufficient decontamination of the device e Please enclose a note which contains the following a Senders name and address b Name of a contact person for further inquiries with telephone number 36 Manual_KH 5_Ver00 Technical Specifications and Service 22 Equipment Decontamination Certificate To enable us to comply with German law i e 28 and 80 StrlSchV 817 GefStoffV and 819 ChemG and to avoid exposure to hazardous materials during handling or repair will you please complete this form prior to the equipment leaving your laboratory COMPANY INSTITUTE ADDRESS PHONE NO FAX NO E MAIL EQUIPMENT Model Serial No If on loan evaluation Start Date Finish Date Hazardous materials used with this equipment Method of cleaning decontamination The equipment has been cleaned and decontaminated NAME POSITION HEAD OF DIV DEP INSTITUTE COMPANY SIGNED DATE PLEASE RETURN THIS FORM TO BIOMETRA GMBH OR YOUR LOCAL BIOMETRA DISTRIBUTOR TOGETHER WITH THE EQUIPMENT PLEASE ATTACH THIS CERTIFICATE OUTSIDE THE PACKAGING INSTRUMENTS WITHOUT THIS CERTIFICATE ATTACHED WILL BE RETURNED TO SENDER 37 Manual_KH 5_Ver00 Technical Specifications and Service 23 Note for Disposal of Electr
11. ED TEMPERATURES F1 22 ah 21 1 Manual_KH 5_Ver00 Table of Contents 14 EXCESS TEMPERATURE 22 14 1 EXCESS TEMPERATURE PROTECTION 22 14 1 1 Setting the excess temperature 23 14 1 2 Testing the cut off point 23 15 24 15 1 SET VALUE S AND FIXED TEMPERATURES F1 TO 24 15 2 ADJUSTING THE CORRECTION FACTORS SYSTEN 25 15 3 DISPLAYING THE VERSION OF THE OPERATING SOFTWARE 28 15 4 SECURED MODE nuauannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 28 15 5 ADJUSTING THE LED DISPLAY CONTRAST 28 15 6 RESOLUTION OF THE TEMPERATURE DISPLAY 28 15 7 ADJUSTING TEMPERATURE LIMIT VALUES 1 29 16 FAULT DISPLAYS 2 22a 30 16 1 EXCESS TEMPERATURE 30 16 2 PUMP OR MOTOR OVERLOADING 30 16 3 SENSOR BREAKAGE OR SHORT 31 16 4 UNDEFINED 31 16 5 FAULT 31 17 TESTING THE SAFETY 5 32 17 1 E
12. KH 5_Ver00 es Configuration 15 2 Adjusting the correction factors RTA system Display 6 shows the actual temperature at the control sensor This temperature does not correspond directly to the temperature in the circulators bath and even less to the temperature in the external connected system The temperature difference is determined by measuring the actual current temperature using a suitable measuring device calibrated or gauged thermometer This is how the correction factor c RTA system is entered into the circulator It remains stored in the circulator and is automatically assigned to the corresponding set temperature The same as for the set values in chap 13 4 four correction factors can be stored c2 and 3 whereby for example c1 is the correction value associated with F1 The resolution of the correction factor according to the RTA system is 0 01 C and the possible range of variation is 9 9 C Entry see also the example on the next page 11 Switch to the RTA function with the arrow buttons 7 in the menu FU Press the enter button 8 to confirm this selection 2 Press the menu button 3 gt The small display 5 shows cS correction factor for working with the set temperature 5 3 Set the determined temperature difference on the display 6 with the buttons 7 4 Press the enter button 8 gt This confirms the v
13. XCESS TEMPERATURE PROTECTION 32 18 COOLING 33 19 34 19 1 CLEANING THE FINS OF THE 34 19 2 DISCARDING THE UNIT zuaasannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn 34 20 TECHNICAL 65 35 20 1 TECHNICAL SPECIFICATIONS OF THE TEMPERATURE CONTROL 35 21 SERVIGE 36 22 EQUIPMENT DECONTAMINATION CERTIFICATE 37 23 NOTE FOR DISPOSAL OF ELECTRIC ELECTRONIC 38 23 EC DECLARATION OF CONFORMITY EU KONFORMITATSERKLARUNG 39 24 WARRANTY u aan 40 2 Manual_KH 5_Ver00 Key to Symbols 1 Key to Symbols 1 1 Symbols used in this manual Warns the user of possible damage to the unit draws attention to the risk of injury or contains safety notes and warnings 7 Denotes an important remark Indicates the next operating step to be carried out and gt what happens as a result thereof 1 2 Symbols used on the unit Caution Read the instruction manual Adjustment possibility for setting the cut off point for excess temperature protection Men
14. alue as new correction factor cS Proceed analogously as described for cS to adjust the correction factors c1 to c3 for the set values F1 to F3 gt The new value is not saved until the Enter button has been pressed The circulator continues to use the old value Warning The correction factor c have to be determined again if the set temperature is altered 25 Manual_KH 5_Ver00 Configuration The display 6 automatically switches back to actual temperature display after a short time After the Enter button 8 has been depressed the correction value like the set value remains stored even in case of a power failure 26 Manual_KH 5_Ver00 Configuration Example AT RTA Set value programmed at the circulator Tse 70 7 Actual temperature in bath system Tat 70 5 Deviation calculated according to T Tset Tact AT 02 C gt A Entry of the corrected value as correction factor c 80 c5 0 2 C The temperature control is thus internally altered so that the desired 70 7 C is also attained in the external system The temperature displayed at the circulator and that of the external system now correspond with each other 27 Manual_KH 5_Ver00 Configuration 15 3 Displaying the version of the operating software It is often necessary to know the version number of the software for se
15. ction conditions The maximal electric impedance must not exceed 0 083 j 0 052 Ohm 35 Manual_KH 5_Ver00 Technical Specifications and Service 21 Service Should you have any problems with this unit please contact our service department or your local Biometra dealer Biometra biomedizinische Analytik GmbH Service Department Rudolf Wissell Stra e 14 16 D 37079 G ttingen Germany Tel 49 551 50881 10 or 12 Fax 49 551 50881 11 e mail service biometra de Attention If you would like to send the unit back to us please read the following instructions Instructions for return shipment e Return only defective devices Please contact the Technical Service Department at Biometra Tel 49 551 50881 10 or 12 to get an Return Authorization Number RAN number Use the original box or a similarly sturdy one e Label the outside of the box with CAUTION SENSITIVE INSTRUMENT and the RAN number sticker Deliveries without RAN number cannot be accepted e Please enclose a precise description of the fault which also reveals during which procedures the fault occurred if possible Important Clean all parts of the instrument from residues and of biologically dangerous chemical and radioactive contaminants Please include a written confirmation that the device is free of biologically dangerous and radioactive contaminants in each shipment If the device is contaminated it is possible that
16. culators or for cooling a heated bath down to a low temperature level very quickly The working temperature range is shown in the technical specifications 1 In this case switch the refrigerated bath off at the mains switch 27 Switching the cooling compressor on for quick cooling down purposes even at working temperatures of 80 C is however permissible 33 Manual_KH 5_Ver00 Maintenance 19 Maintenance The stainless steel surfaces of the bath vessel and of the housing may after some time show spots and become tarnished Normal stainless steel cleaners as they are used in the kitchen be used The bath vessel and built in components should occasionally at least every time the bath liquid is changed be cleaned using a household cleaner Vinegar based cleaners have proved to be suitable used according to the manufacturers recommendations 7 Do not use scouring powder gt Use only distelled water as temperature fluid to avoid calsium spots Also to make up water glycol mixtures The inside of the bath vessel must be kept clean in order to ensure a long service life Substances containing acidic or alkaline substances and metal shavings should be removed quickly as they could harm the surfaces causing corrosion If corrosion e g small rust marks should occur in spite of this cleaning with stainless steel caustic agents has proved to be suitable These substances should be applied according to t
17. d unit A heating which in turn reduces the cooling capacity and thus impairs correct functioning 12 Manual_KH 5_Ver00 Functional and Operating Elements 8 Functional and Operating Elements 8 1 Temperature control module KH 5 front rear 14 15 16 Symbol Read the instruction manual 1 Mains switch Reset button Menu selection key Heating control display Menu position display Set or actual temperature display Value alteration higher lower 8 Enter key 11 Mains connection 12 Fuses if this fuse is triggered see chap 12 4 13 Excess temperature setting dial 14 outlet to application 15 inlet from application 16 fan 27 Switch for cooling on off 28 Filling level 29 Draining port 30 Display and user interface 13 Manual_KH 5_Ver00 left right Connecting Hoses 9 Connecting Hoses Pump nozzle A left outlet to external object pressure side right return flow from external object Hoses are normally used to connect the pump with an external vessel General recommendations concerning the max allowable length of hoses cannot be given It all depends largely on the size form and material of the external vessel to be temperature controlled It should be understood that the length of a hose and its diameter combined with the circulating capacity have a large effect on the tem
18. ding to ISO 9001 2000 This guarantees the presence of organizational structures which are necessary to ensure that our products are developed manufactured and managed according to our customers expectations Internal and external audits are carried out on a regular basis to ensure that our Quality Management System is fully functional We also check our products during the manufacturing process to certify that they are produced according to the specifications as well as to monitor correct functioning and to confirm that they are safe The results are recorded for future reference Please inform us if despite our precautionary measures you should find any product defects You can thus help us to avoid such faults in future 3 Your Contacts at Biometra Please get in contact with our Service Department or the authorized distributor who supplied you with the unit if you have any further questions Biometra GmbH Service Department Rudolf Wiisell Stra e 14 16 D 37079 Goettingen Germany Tel 49 551 50686 10 or 12 Fax 49 551 50686 11 service biometra de www biometra com Manual_KH 5_Ver00 Test Certificate 4 Test Certificate This is to certify that the tempering device which you have acquired and to which these instructions for operation refer has been tested and equilibrated in compliance with the regulations of a certified Quality Assurance System according to DIN ISO 9001 Testing for constancy of temperature has b
19. e set the highest quality standards for ourselves and this unit during development and production Every unit meets relevant safety regulations The correct unit usage and proper handling is however solely your responsibility The intended workplace should correspond to a laboratory or pilot plant environment The user should have an education level which is at least equivalent to a trained laboratory worker or specialized chemist The following list should be seen as an example The device may not be operated if there are any doubts regarding a safe operation due to the outer appearance e g damages A safe operation of the instrument cannot be guaranteed if the user does not comply with this instruction manual Ensure that this manual is always at hand for every unit operator Only use this unit solely for the intended application Repairs alterations or modifications must only be carried out by specialist personnel Consider the manufacturer s instruction manuals Considerable damage can be caused by improper repairs The Biometraservice department is at your disposal for repair work Do not operate the unit with wet or oily hands Do not expose the unit to spray water or immerse it in water Do not clean the unit with solvents fire risk a wet cloth soaked in household detergent is normally sufficient Manual_KH 5_Ver00 Safety Notes This device is not designed according to the standard EN 60601 1 1990 DIN VDE
20. een carried out in keeping with DIN standard DIN 12876 for laboratory equipment follow up standard to DIN standard 58966 The measuring equipment used in the testing process is regularly calibrated and can be traced back to the national norms of the Physikalisch Technische Bundesanstalt PTB Deutschlands or to other national norms In those cases where there are no norms and standards on a national level the testing process is in keeping with currently valid technical rules and regulations norms and standards All required measuring data are listed on this page of the Test Certificate Measuring conditions Ambient temperature 20 Power supply frequency 230V 5V 50 Hz respectively 115V 5V 60Hz System parameters Volume 3 5 litre Liquid Water Rated temperature 70 C Measuring process Checking constancy of temperature in bath according to DIN 12876 part 2 follow up standard to DIN 58966 part 2 paragraph 4 3 Measuring agent Type of sensor used for measuring Quartz Inexactitude of measurement according to DIN IEC 751 0 1K Test results Temperature stability Width of control range 0 02 Temperature stability persistent 0 01K Accuracy at 70 C 0 1K Manual_KH 5_Ver00 Safety Notes 5 Safety Notes These notes are intended to draw your attention to risks which only YOU can recognize and avoid or overcome They are intended to enhance your own safety consciousness We hav
21. he manufacturers recommendations 19 1 Cleaning the fins of the liquefier In order to maintain the cooling capacity of the unit cleaning has to be done two to four times per year depending on the grade of soiling Switch off the unit and pull out the mains plug 19 2 Discarding the unit One day the life span of your cooling unit will end Therefore This unit contains ozone friendly coolant R134a i The unit may however only be discarded by authorized personnel 34 Manual_KH 5_Ver00 Technical Specifications and Service 20 Technical specifications Technical specifications of the temperature 20 1 control module Operating temperature C 10 80 Temperature accuracy K 0 1 Heater capacity 230V 115V W 1500 1100 Pump pressure max mbar 250 Max flow rate during circulation using l min 12 12 mm hoses Voltage V 230 10 or 115 10 Frequency 230V 115V Hz 50 60 60 Total wattage consumption 230V VA 2050 1250 115V Safety elements according to NFL category Excess temp protection variable Motor overload protection yes FIS system yes Temperature setting digital Setting limitation yes Temperature display LED green RTA system yes Control type PID Control sensor digital IC The working temperature range is dependant on the cooling selected The product is compliant with EN 61000 3 11 requirements and underlies special conne
22. his action if necessary 17 Manual_KH 5_Ver00 Draining 11 Draining The temp control unit is drained at the nozzle 23 23 1 Place a suitable vessel underneath nozzle cP Bear in mind that the liquid will run out in a slight arc I 2 Turn plug slowly until it becomes disengaged from the thread A pin will prevent the liquid from running out right away 3 Pull out plug pin in one quick motion The liquid will start to run out 4 Possible residues can be drained by tilting the circulator slightly Hot heat transfer liquid should not be drained When certain conditions make draining necessary please act safety conscious Wear protective clothing and protective gloves 18 Manual_KH 5_Ver00 230 V Excess Temperature Protection 12 Connecting Up 12 1 Connecting to the mains Only attach this unit to mains sockets with a grounded earth Compare the local mains voltage with the specifications written on the name plate Voltage deviations of 10 are permissible The socket must be rated as suitable for the total power consumption of the unit 12 2 Checking the liquid circuit Before switching on check again to make sure that the pressure and suction ports are connected with each other or alternatively if an external object is to be temperature controlled that the hoses are connected correctly and secured
23. ic Electronic Waste This symbol the crossed out wheelie bin means that this product should be brought to the return systems and or separate systems available to end users according to yours country regulations when this product has reached the end of its lifetime For details please contact your local distributor This symbol applies only to the countries within the EEA EEA European Economics Area comprising all EU members plus Norway Iceland and Liechtenstein 38 Manual_KH 5_Ver00 Technical Specifications and Service 23 EC Declaration of Conformity EU Konformitatserklarung March 2008 im Sinne der EG Richtlinie Uber elektrische Betriebsmittel zur Verwendung innerhalb bestimmter Spannungsgrenzen 2006 95 EG following the EC directive about electrical equipment for use within certain limits of voltage 2006 95 EC und and im Sinne der EG Richtlinie f r die elektromagnetische Vertr glichkeit 2004 108 EG following the EC directive about the electromagnetic compatibility 2004 108 EC und and im Sinne der EG Richtlinie fur Druckgerate 97 23 EG following the EC directive about pressure equipment 97 23 EC Hiermit erkl ren wir dass folgender K hlthermostat Herewith we declare that the following Refrigarating Circulator Typ type KH 5 Best Nr Order No 043 400 230 V 043 490 115 V den grundlegenden Anforderungen der corresponds to the basic requirements of EG Niederspannungs
24. n the filling level is very close to minimum Before returning the unit top up with heat transfer liquid This fault can often be remedied in this way In all other cases this unit must be checked by qualified service personnel 16 5 Fault eliminated After the fault has been eliminated the cause of the fault is shown on the display 6 e g The preceding three zeros mean that the fault has been eliminated The reset key 2 must be pressed in order to start up the unit again 31 Manual_KH 5_Ver00 Testing the Safety Features 17 Testing the Safety Features The safety feature for excess temperature protection must be checked at regular intervals The level of regularity of checking depends on the unit s designated application and the heat transfer liquid used inflammable or non inflammable Practical experience has shown that between 6 to 12 times a year is sufficient 17 1 Excess temperature protection Set a cut off temperature see chapter 14 1 that is lower than the desired set temperature Switch on the circulator and check if the circulator really does switch itself off at the set cut off temperature If not follow the specifications detailed in chapter 14 1 1 It may be deemed necessary to have the unit checked over by qualified service personnel 32 Manual_KH 5_Ver00 Cooling 18 Cooling The refrigerated bath is used mainly for enabling lower than ambient or tap water temperatures in cir
25. ng live parts and damage by foreign matter it has been ensured that foreign bodies with a thickness or diameter of more than 12 mm cannot penetrate i r gt No special precautions were taken against the penetration of water and dust The device should therefore not be used in a dusty atmosphere or in the neighborhood of spray water r gt Do not insert wires or tools in any of the openings Complete separation from the mains is required when all dangers caused by this device are to be avoided cleaning is carried out e repairs or maintenance by specialist personnel is about to be carried out Complete separation means Pull out the mains plug Manual_KH 5_Ver00 Unpacking Setting Up 6 Unit Description This device contains safety elements according to category NFL making it suitable for unattended continuous operation with non combustible substances as bath liquid water or water with antifreeze The circulator pump motor is protected against thermal overloading Two pump speeds can be selected The safety element measures the surface temperature of the heating element If this exceeds a certain temperature due to e g a leakage in the liquid circuit or a liquid shortage the safety element is triggered The 5 circulator offers the possibility of setting this cut off temperature variably 10 Manual_KH 5_Ver00 Unpacking Setting Up 6 1 Safety features The comprehensive safety sys
26. or instance a bath liquid has a fire point of 60 C the unit should cut off after reaching 35 at the latest 1 Birst set the desired set value 5 using keys 7 7 or J to exactly 35 C 2 After the circulator has reached this temperature turn the excess temperature dial 13 backwards very slowly to the left until the unit cuts off fault message on display 6 3 Reset the unit via the Reset key 2 after the heat transfer liquid has cooled down somewhat 4 Then set the set temperature to the actual temperature lt 35 gt The unit can now be used for temperatures below 35 C As soon as 35 C is reached it is securely switched off 14 1 2 Testing the cut off point Set the set temperature to a higher value than 35 C set the unit to heat up and watch the digital display or thermometer The value indicated when the alarm goes off is the real cut off temperature The reaching of the cut off point is indicated at the display by the following message I 23 Manual_KH 5_Ver00 Configuration 15 Configuration The device is completely ready for operation after defining the desired set temperature and adjusting the overtemperature protection It is furthermore possible to adjust or call up several functions in the function mode FU END SoLL RTA CON H L Quit configu Adjust set Adjust correc Version no
27. perature control effectiveness Whenever possible the decision should be made in favor of the wider hose diameter and the vessel to be temperature controlled should be placed as close as possible to the circulator High operating temperatures will lead to high temperatures on the hose surface this is even more so at the metal nozzles In this case DO NOT TOUCH The required hose material is dependent the heat transfer liquid used Hoses must not be folded or bent A wide radius should be used if turns have to be made Hoses may become brittle after prolonged use or they may get very soft They should therefore be checked regularly and exchanged if necessary Secure all hose connections using hose clamps 14 Manual_KH 5_Ver00 Connecting Hoses 9 1 Plastic hoses It must be ensured that the hoses selected are fully suitable for the particular application i e that they will not split crack or become disengaged from their nozzles Perbunan hoses have proved to be satisfactory for your circulator These hoses are available as running meter goods with internal diameters of 8 or 12 mm Hoses made of other materials are also available from Thermo Scientific Hoses with 12 mm internal diameter can be pushed directly onto the nozzle A 9 2 Connection of external closed systems E g instruments with a pressure tight temperature jacket or coil or a heat exchanger Hose connection From the press
28. play 6 automatically switches back to actual temperature display after a short time 13 4 Adjusting the fixed temperatures F1 to F3 facultative This device permits permanent storage of three fixed temperatures which can be activated when required 1 Press the menu button 3 gt The small display 5 shows F1 for fixed temperature 1 F2orF3 2 Press the buttons 7 to increase 7 or decrease 4 the value shown in the display 6 3 Press the enter button 8 gt The selected value is stored as fixed temperature F1 F2 or F3 and activated as currently valid set value The display 6 automatically switches back to actual temperature display after a short time At the same time the small display 5 shows whether the temperature set point S F1 F2 or F3 is currently active To activate another set value press the menu button 3 until the designator of the desired set point e g S is shown in the display 5 Then press the button 8 to confirm without changing the value 21 Manual_KH 5_Ver00 Excess Temperature Protection 14 Excess Temperature Protection If one of the safety devices is triggered The fault cause is shown in the display 6 see also chapter 16 all voltage conducting unit components the heating element and pump motor are switched off immediately i e the safety circuit transfers the unit to a stable safe condition lt gt r The fault ca
29. plays 5 and 6 automatically return to actual temperature display mode after a short delay 29 Manual_KH 5_Ver00 Fault Displays 16 Fault Display Displays 6 shows the fault message is shown on display 5 The heating element and pump are completely switched off The following faults are possible Excess temperature Pump or motor overloading Sensor breakage or short circuit Undefined fault 16 1 Excess temperature The low liquid level protection can be triggered if 16 2 Pump Excess temperature has been set too closely to the desired working temperature increase value slightly according to specifications made in chapter 14 1 1 the control function is defective gt Return unit for servicing or motor overloading The motor or pump is blocked It can take 10 min longer until the motor temperature has sunk far enough so that the unit can be switched on again by pressing the reset key 2 If the circulator switches off again after a short time return the unit for servicing 30 Manual_KH 5_Ver00 AL ooo Fault Displays 16 3 Sensor breakage or short circuit The sensor must be exchanged by qualified service personnel Please return unit for repairs 16 4 Undefined fault This can be caused by fault which only occurs for a short period of time i e with a fluctuating bath level whe
30. r 12 Fax 49 551 50686 66 Fax 49 551 50881 11 e mail info biometra de e mail service biometra de internet http www biometra de 40 Manual_KH 5_Ver00
31. richtlinie 2006 95 EG und der EC low voltage directive 2006 95 EC EC and the EG Richtlinie ber die elektromagnetische Vertr glichkeit 2004 108 EG und der EC directive about the electromagnetic compatibility 2004 108 EC and the EG Richtlinie f r Druckger te 97 23 EG entsprechen EC directive for pressure equipment 97 23 EC Dr Juergen Otte Quality Manager 39 Manual_KH 5_Ver00 Technical Specifications and Service 24 Warranty This laboratory instrument is produced with the highest practical standards of materials workmanship and design The design and manufacture of parts have been conceived with one purpose to produce units which will give satisfactory service Biometra GmbH guarantees this unit to be free from defects in materials or workmanship under normal use or service for 24 month from date of shipment If during this time this unit proves defective in materials or workmanship Biometra GmbH will repair or replace it free of charge if returned to us prepaid This guarantee does not cover damage in transit damage caused by carelessness misuse or neglect or unsatisfactory performance as a result of conditions beyond our control or consequential losses as a result of failure of our product Biometra biomedizinische Analytik GmbH Service Department Rudolf Wissell Str 30 Rudolf Wissell Str 14 16 D 37079 Gottingen D 37079 Gottingen Germany Germany Tel 49 551 50686 0 Tel 49 551 50881 10 o
32. rvice and other manufacturer inquiries 1 Change to con in the menu FU and press button 8 to confirm Press button 3 to switch to BS The version number appears in the upper display 6 15 4 Secured mode 1 Change to con in the menu FU and press button 8 to confirm Press button 3 to switch to 88 2 Switch security mode ON or OFF with the arrow buttons 7 and press button 8 to confirm Secured mode ON The temperature control module switches to the secured mode in case of a power failure or if it is switched on via the mains switch Display 6 flashes over all segments 8088 Switching on again is only possible after the reset button 2 has been pressed This is due to safety reasons The unit reacts in the same way if is switched on via a mains switch in the laboratory Secured mode OFF After a power failure or if it is switched on via the mains switch the temperature control module will switch on and start heating corresponding to the stored values and the last temperature used Please consider any possible resulting risks 15 5 Adjusting the LED display contrast 1 Change to con in the menu FU and press button 8 to confirm Switch to In with button 3 2 Press the arrow buttons 7 to change the display contrast 0 to 15 and then press button 8 to confirm the setting 15 6 Resolution of the temperature display 1 Change to con in the menu FU and press button 8 to confirm
33. tem is designed on the principle of the concept of the single fault EN 61010 This assumes that two separate faults do not occur simultaneously This system therefore offers protection against one single fault This one fault will effectively occur automatically if you do not read this manual do not correctly set the excess temperature protection your safety reserves have already been used up Such faults can include e g Fault in the temperature control unit gt Excess temperature _ gt poss fire danger Leakage in the liquid circuit or Evaporation of heat transfer liquid gt Low liquid level poss fire danger destruction of polyacrylic bath vessel Pump blocked or Great portion of antifreeze in the bath liquid gt Motor overheating gt poss fire danger Or also Excess temperature protection level not correctly set gt poss fire danger If a safety feature is triggered Fault Indentification System FIS indicates the fault the safety relevant components of the heating unit heating element and motor are switched off immediately i e the safety circuit transfers the unit to a stable safe condition the heat transfer liquid in the heating unit gradually adjusts to ambient temperature but For units with switched on compressor cooling this cooling remains functional and thus cools the heat transfer liquid to the lowest reachable temperature 11 Manual_KH 5_Ver00
34. u selection Value alteration 7 higher 4 lower Enter key Reset button for usage after a fault or interruption gt gt Manual_KH 5_Ver00 x 20 gt Resolution Lt a __ temperature 70 _ co 1 m E 0 I 1 LED display contrast h __Fixed temperature 2 bight 50 gt Play RIA 2 0 c 4 100 High Limit T oe Secured mode Fixed temp rature 1 TI _Fixed temperature 1 1 0 n 10 0 imi Soft i i S S Of 20 S Low Limit 71 71 10 oftware version rata 52 2 et temperature WHE ett t Select function and confirm Function mode A 2 70 0 Fixed temperature 3 E 40 0 Fixed temperature 2 EE 1 0 0 Fixed temperature 1 4 Change or activate set temperature S 20 0 Set value S Displaying the actual temperature 18 0 Set value S activated act set value S or F1 or F2 or Displaying the software version 1 00 in FU continue presigo only displayed if secured mode is switched on ooo SE RE SENBER TEEN automatic start after unit ON switched on 10 NUIT I SJOQUIKS 01 Kay Quality Assurance Contacts a Biometra 2 Quality Assurance Biometra implements a Quality Management System certified accor
35. ure port at the left to the external object and EZ COCE 80 then back to the return port at the right If it cannot be avoided that the external object is situated higher than the circulator the heat transfer will only not flow back on the condition that the system is completely tight and leak free To be on the safe side it may be considered necessary to fit stop cocks to the inlet and outlet hoses External Object 15 Manual_KH 5_Ver00 Filling 10 Filling with Bath Liquid 10 1 Recommended bath liquids 5 to 80 Distilled Water Normal tap water leads to calcareous deposits necessitating frequent unit decalcification Calcium tends to deposit itself on the heating element The heating capacity is reduced and service life shortened Water of course be employed up to 95 however above 80 C water vaporization reaches a level which necessitates the liquid to be constantly replenished Add an appropriate amount of Chloramine to avoid algae growth in the water 10to 80 C Water with Antifreeze In applications below 5 C the water has to be mixed with an antifreeze In doing so the amount of antifreeze added should cover a temperature range 5 C lower but max 30 C than the operating temperature of the particular application This will prevent the water from gelling freezing in the area of the evaporating coil the surface area of which is much colder than the working temperature
36. use must be identified and remedied After the fault has been eliminated the unit can be started again by pressing the Reset key 2 14 1 Excess temperature protection dial It offers protection against dangers caused by an uncontrolled heating up of the heat transfer liquid above the desired set 4 temperature The cut off temperature is adjusted with the excess My temperature setting dial 13 DA Proper protection can only be guaranteed if the cut off point has been correctly set There are two main aims for correct setting Safety primary importance Protection against ignition of the heat transfer liquid The cut off point must be set at least 25 below the fire point of the bath liquid used However this unit is for use with water only Protection of the object to be temperature controlled secondary importance Additional protection e g of a biological sample The cut off point should be set as close as possible to the desired temperature value 22 Manual_KH 5_Ver00 nz 5 Excess Temperature Protection 14 1 1 Setting the excess temperature The cut off point is set with the excess temperature dial 13 with a rough scale of temperature values arranged around it This scale of course can only serve as an approximate setting means for this cut off point However the cut off point can be determined to act exactly if the following procedure is adhered to If f
Download Pdf Manuals
Related Search