N2-4RC Low-temperature Thermostat Circulation Water Bath User's
Contents
1. A HOT SURFACE Warning In this operation instruction not all issues related with safety at use of our g p y products are involved Before use of this instrument the user shall take corresponding safety and health measures and ascertain the applicable range h Maintenance and clean case of fuse broken follow the signs on the model to replace If the instruments are dirty scrub with a clean wash cloth and not cleaned with alcohol and other organic solvents i Excess temperature protection The excess temperature protection should be set at least 25 C below the fire point of the bath fluid used In the event of wrong setting there is a fire hazard IH Low temperature Thermostat Circulating Water Bath N2 4RC We disclaim all liability for damage caused by wrong settings 3 Other notes A Before switching on the power supply the connection wires between the control system and the water bath shall be checked for being correct and they shall be inserted at correct alignment instead of heavy insertion B In case of trouble during operation the instrument will automatically stop test In this case the instrument shall be turned off to eliminate the trouble before resuming test In on state even after elimination of the trouble the instrument shall be turned off and then re started C The instrument temperature shall be calibrated once every year and after replacement of temperature sensor the temperat2. Warranty contents 1 In 1 month from the delivery day we shall be responsible for replacement for the trouble due to defect in materials or workmanship 2 In 1 year from the acceptance qualification day we shall render 12 months of integral warranty and also provide all life maintenance b Warranty range 1 The damage resulted from user s improper use use under improper condition or arbitrary maintenance or reform without authorization shall be excluded in the warranty range 2 For the repair outside the warranty period proper cost shall be charged c After sale services hot line 86 571 87774558 As per our requirements some parameters of the instrument would be modified without notice Contents 1 Product usage and features os pide Debs re ven oes WEE RU RUNI DNE SEN qe va 1 M Basic parameters cud Gore oma UE de rer e e ec 1 1 58 a den see vae x Daa Soe dereud AA P ER ERR 2 Low temperature Thermostat Circulating Water Bath N2 4RC A Preparauion sent Sek Chea Rea dei AEROS URP E LES e Tq Eis 2 es EE E EE 2 C Setting E EE 2 1 Setting of work 1 5 2 2 Settinmof safe temperature os th atte ERG EE AS eee ee Eed dg 3 Setting of highest temperature 2 52 5 soa edu vs eelef RT Eee D Correction ee te eee eee MP eel
3. LES 4 Comection of temperature cades ober ae hee EE 4 B Control oFrefriseratitig ica er e etd ene boxe we e XS ME 4 FP Protection oo celis SOS 6A OLS EIU et COL ODOR ELA ERIS E ed 4 I Protection of EE EE 1 2 Dry b rnin a Protection adonde a aceite boe i ay Due Wie UN Sek t 4 J Overcurrent prote Lolli ed Stee PLE era ovem E dE Vel ob a M D ble de dita 4 LEE 4 1 Temperature sensor open circuit alarm iocos o eR RERO ERREUR EEN 4 2 Temperature sensor short circuit aarm 4 3 Low liquid level See Re Saeed Ck EXTINGUERE Te ee hea teas 5 4 Over Sate temperature EEN 5 5 Over highest temperature 1 5 Appendix A Schematic diagram of control 5 Low temperature Thermostat Circulating Water Bath N2 4RC Appendix B Structural schematic diagram of instrument Appendix C Electrical schematic diagram of heating circulator Appendix D Electrical schematic diagram of refrigerating system Low temperature Thermostat Circulating Water Bath N2 4RC I Product usage and features This product is a low temperature thermostat circulation water bath combined with micro computer controlled thermostat and compressor refrigerating technology characterized by high temperature control precision low working noise rich display interfaces extra strong function easy operation and high safety an
4. between its surrounding ventilation holes and the nearest object shall not be below 300mm Excessively high temperature would impair performances of the instrument or result in trouble This instrument II Low temperature Thermostat Circulating Water Bath N2 4RC shall not be used in the place subjected to direct sunshine or direct radiation of strong light source The normal working environment for the instrument is room temperature 5 35 C and RH lt 90 altitude up to 2 000 m At shutdown the power supply shall be switched off For long term interruption the power plug shall be withdrawn and the instrument covered with soft cloth to prevent dust from entrance Note In any of the following cases please immediately unplug the instrument contact the supplier or ask qualified maintenance personnel for treatment Liquid drops into the instrument The instrument is rained or watered During running of the instrument abnormalities occur especially abnormal sound or odor The instrument is dropped or is casing is damaged Abnormal function of instrument Warning signs A WARNING Pay special attention to fire prevention while using inflammable Solution AN WARNING Anti icing fluid must be used while operating at DC or below OC A ATTENTION It is necessary to periodically check the liquid level when the instrument is kept running at high temperature fora long ume
5. flash and the said figure may be adjusted through pressing up down key For adjusting value of other digits press the SET key again At that time the figure in the temperature setting window will shift and the said figure may be adjusted through pressing up down key After 8 seconds from stopping operation the figure will stop flashing the system will default the set value and run at the current set value 2 Setting of safe temperature Safe temperature refers to a given temperature limit which is within given range of test temperature and can be set by operator if necessary In case of abnormality it will send audio and video alarm Example If the safe temperature is set at 1 C and the temperature of water bath at 30 C when the water bath temperature is controlled at 30 C and the temperature of water bath abnormally varies outside 30 C 1 C it will send alarm sound and the Alarm lamp will light on In the interface shown in Fig l and simultaneously press key SET and t key for several seconds to enter safe temperature setting state At that time one digit figure in SV temperature setting window will flash and the said figure may be adjusted through pressing up down key For adjusting value of other digits press the SET key again At that time the figure in the temperature setting window will shift and the said figure may be adjusted through pressing up down key After 8 seconds from stopping operation
6. mm connection Net weight 25 kg AC250V 10A heating unit Fuse AC250V 6 3A refrigeraing unit 1 Low temperature Thermostat Circulating Water Bath N2 4RC III Operation instruction A Preparation 1 As shown in Appendix B with power wire connect the controller and thermostat water bath refrigerating system As shown in Appendix B with main power wire connect the thermostat water bath with external power source 2 Into the bath fill medium till 30mm below its highest position of the bath In case of work temperature below 4 C the medium should be the mixture of water and glycol mixture 1 1 B Start 1 Switch on the power of the controller and the refrigerator If the work temperature is set below room temperature plus 5 C switch on the refrigerator 2 Self inspection of system If the system fails in the self inspection it will enter the alarm interface If the system passes the self inspection it will enter the work state and run as per the previous set parameters 3 The operation interface is shown in Fig 1 Fig 1 nl Jt Ko EJ HEAT LEVEL ALARM 5 Setting of parameters 1 Setting of work temperature Low temperature Thermostat Circulating Water Bath N2 4RC In the interface shown in Fig 1 press the SET key to enter work temperature setting state At that time one digit figure in SV temperature setting window will
7. N2 4RC Low temperature Thermostat Circulation Water Bath User s manual Hangzhou Bioer Technology Co Ltd Note The document would be subject to modification without further notice Without our written consent any portion of the document shall not be copied duplicated or translated into other language Thank you for your use of our product Before use of the instrument please carefully read the instruction In case of unclear issue please immediately contact us We shall provide you our services Thank you for your cooperation Document No BYQ61210000000U USM Document edition July 2010 Version 1 0 Low temperature Thermostat Circulating Water Bath N2 4RC Important 1 Usual practice Note The note item contains extremely important information which should be carefully read otherwise the equipment would be damaged or impossible to normally work Warning The warning information requires careful operation procedures or method otherwise damage of equipment or personal injury would occur 2 Safety During operation maintenance and repair of this instrument the following basic safety measures shall be taken Failure to take these measures or note the warnings indicated herein would impair the protection the safety standards of design and manufacture and even the expected use range of the instrument We shall bear no liability to the consequences resulted from user s failure to meet the follow
8. d reliability and widely used in fields including petroleum chemical medicine bio chemical metering light industry and scientific research LED module display Provided with external connected PT100 temperature sensor interface Provided with bath solution outer circulation connection Correctable displayed temperature Possibly setting safe temperature Possibly setting highest water bath temperature Function of default setting Provided with functions of over heat alarm low water level alarm temperature sensor open circuit alarm and dry burning protection II Basic parameters Model Td2 4I C Parameter Temperature control range 10 99 9 T t trol contro 40 03 precision Heating power 750 W Nominal f omina power of sw compressor Refrigerant R134a Temperature raising time lt 60 min Raising from 20 C to 95 Temperature lowering time lt 90 min Lowering from 20 C to 10 C Input power source AC220 240V 50Hz Input power 950 W Insulation resistance gt 1 5 MQ Withstanding 50Hz sine wave AC 1500V for 10 seconds without Dielectric strength flashing or breakdown Dimensions of work area of water bath 150x140x140mm Lx W xH Dimensions of inner tube 300x150x160 Lx W of water bath SEENEN Outside dimensions 400x230x660mm Lx W xH Size of outer circulation Size of jet port and return port connection O12
9. enotes phase lines N zero line and E earth line d Power wire Usually this instrument uses the accompanied power wire The damaged power wire if any shall be replaced with one of the same type and specification and repair shall not be allowed During use of this instrument the power wire shall neither be pressed nor placed in person passing location e Insertion and withdrawal of power wire At insertion and withdrawal of power wire the plug shall be surely held by hands The plug shall be fully and completely inserted to the socket and at withdrawing of the plug the power wire shall not heavily pulled f Prevention from fire In order to avoid accident neither liquid of alcohol concentration over 40 nor mixed solution of low flash point shall be filled in the bath as medium The instrument shall be kept apart from air heater furnace and other heat or fire source and its surrounding shall not be placed with inflammable or explosive substances This instrument has no automatic detection function of gas leakage g Placement of instrument This instrument shall be fixed in less dusty place of low humidity and the room shall be well ventilated and free of corrosive gas or strong magnetic field interference This instrument shall not be fixed in wet or dusty place The openings in this instrument are for ventilation to avoid overheat and shall not be blocked or covered In case of use of a single set of instrument the distance
10. face shown in Fig 1 press ADJ key to enter work temperature correction state At that time one digit figure in PV temperature setting window will flash and the said figure may be adjusted through pressing up down key For adjusting value of other digits press ADJ key again At that time the figure in the temperature setting window will shift and the said figure may be adjusted through pressing up down key After 8 seconds from stopping operation the figure will stop flashing and the system will store the corrected value E Control of refrigerating If the temperature control point is below environmental temperature plus 5 C the refrigeration switch shall be turned on when the temperature control point is higher than environmental temperature by 5 C 10 C the refrigeration switch may not be turned on had better open the cover of water bath and when the temperature control point is higher than environmental temperature by at least 10 C the refrigeration switch shall be turned off After cutting off the refrigeration switch only after at least 3 minutes may the refrigeration switch be re turned on F Protection 1 Protection of refrigerator The refrigerator is built with over pressure protector and over current protector In case of over pressure or over current in the refrigerator the refrigerator will stop 2 Dry burning protection The heating tube is fixed with a dry burning protector and in case of dry burning it will s
11. ing requirements a Instrument earth In order to avoid shock accident the input power cable of instrument shall be reliably earthed In this instrument 3 core earth plug is used and this plug has a third earth foot and is merely used for earth type power socket This is a safe unit and also necessary for normal work of the instrument If the plug is impossible to insert into the socket a correct socket shall be fixed by electrician so as to prevent the plug from losing safety protection action The supply power shall be reliably earthed Caution The main protective conductor terminal used for other circuit earthing purposes shall be applied first and secured independently of other connections Unless servicing involved the protective conductor it should be reliably earthed b Keeping apart from live circuit The operator shall not arbitrarily open the instrument and replacement of elements or inside adjustment shall be made by qualified maintenance personnel The replacement of elements in live state shall not be allowed Low temperature Thermostat Circulating Water Bath N2 4RC c Power supply Before connecting AC power source make sure the power voltage consistent with the instrument required one and the rated load of the power socket not less than the instrument required load In order to ensure the safety the phase of the instrument s power socket shall be consistent with phase of the plug of instrument s power wires L d
12. tat Circulating Water Bath N2 4RC hende of dryburing precor Low temperature Thermostat Circulating Water Bath N2 4RC Appendix C Electrical schematic diagram of heating circulator J2 1 45V 42 2745 32 3 pv DC SOURCE J2 4 Dv J1 4 Ve 2 31 K Internal PTl00 J1 1 EARTH Input 220 240V 50Hz ez External PTLO0 9508 J3 1_GND 23 2 ALARMT mater level switch Je CHEAT Drive signal HEATER 1 Low temperature Thermostat Circulating Water Bath N2 4RC Appendix D Electrical schematic diagram of refrigeration system E a d E Compressor Low temperature Thermostat Circulating Water Bath N2 4RC G BIOER TECHNOLOGY CO LTD Headquarter Address 1F Sumitomo Mita Building 5 37 8 Shiba Minato ku Tokyo 108 0014 Japan Factory Address 1192 Bin An Rd Hi tech Binjiang District Hangzhou 310053 P R China Fax 86 571 87774565 Phone 86 571 87774575 87774558 87 774567 Website http www bioer com cn Email bioer bioer com cn
13. the figure will stop flashing and the system will store the set value At ex work the safe temperature is set at 1 C and it may be adjusted between 1 C and 9 C 3 Setting of highest temperature The highest temperature refers to a given temperature which liquid in the water bath shall not exceed and can be set by operator if necessary In case of exceeding the said temperature it will send alarm sound and the Alarm lamp will light on Example If the highest temperature is set at 80 C and the temperature of liquid in the water bath exceeds it it will send alarm sound and the Alarm lamp will light on In the interface shown in Fig 1 simultaneously press key SET and key for several seconds to enter the safe temperature setting state At that time one digit figure in PV temperature setting window will flash and the said figure may be adjusted through pressing up down key For adjusting value of other digits press the SET key again At that time the figure in the temperature setting window will shift and the said figure may be adjusted through pressing up down key After 8 seconds from stopping operation the figure will stop flashing and the system will store the set value 2 932 Low temperature Thermostat Circulating Water Bath N2 4RC At ex work the highest temperature is set at 110 Cand it may be adjusted between 50 and 110 D Correction 1 Temperature correction In the inter
14. top heating 3 Over current protection The power socket of the instrument is fitted with a current fuse and in case of over current the said fuse will be burnt At that time only after the instrument trouble is eliminated and the fuse replaced may the instrument be re started Alarm 1 Temperature sensor open circuit alarm In case of temperature sensor PT100 open circuit it will make audio and video alarm and stop heating and circulation 2 Temperature sensor short circuit alarm In case of temperature sensor PT100 short circuit it will make audio and video alarm and stop heating and circulation Low temperature Thermostat Circulating Water Bath N2 4RC 3 Low liquid level alarm If the liquid level is lower than the alarming value it will alarm and stop heating 4 Over safe test temperature alarm The interface may be set with the safe test temperature When the bath solution temperature exceeds the said temperature it will make audio and video alarm 5 Over highest temperature alarm Generally at ex work the bath solution s highest temperature protection is set and it may also be set by operator If the bath solution temperature exceeds the said temperature value it will make audio and video alarm and stop heating and circulation Appendix A Schematic diagram of control panel P HEAT LEVEL ALARM se Appendix B Structural schematic diagram of instrument Low temperature Thermos
15. ure shall be re calibrated D At filling of liquid into the bath cares shall be taken to avoid sputtering of liquid into the electric chamber The liquid level of the medium in the bath shall be at least 2cm from bath cover to prevent liquid inside the bath from sputtering outwards E The liquid level of medium in the bath shall not be excessively low or the heater would be damaged Though the bath is provided with low liquid level protection it shall be frequently checked to avoid too low liquid level F In case of instrument bath temperature is over 50 C get away from the surfaces of bath frame and cover to avoid being burnt G At handle of the instrument the inclination shall not exceed 45 H Recommended bath fluids Bath fluid Temperature range soft decalcified water gt 4 C mixture water glycol mixture 1 1 10 C to 4 C I Thermostat Instructions 1 When the working temperature is below 4 C a Use of ethylene glycol and water mixture ratio 1 1 b Protection set point temperature 30 C Thermostat to be adjusted 2 When the working temperature is 4 99 9 C a Use soft water b Protection set point temperature 110 C Thermostat to be adjusted IV Low temperature Thermostat Circulating Water Bath 110 C 60 C 30 C J During operation moving parts must not be accessed in order not to damage the operator 4 After sale services For our instruments the after sale services are as follows a
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