W4000 & W4000/EURO Water Still Assembly
Contents
1. Over a period of operation scale will build up inside the boiler To obtain optimum performance this scale should be removed on a regular basis The time span between cleaning depends greatly on the hardness of the water supply and the amount of use Frequently used stills in hard water areas may need descaling once a week whereas in a soft water area several weeks may elapse before descaling is necessary N B Heavy scaling will reduce distilled water quality and can shorten the life of the heating element lt is possible to descale the Merit Water Still without dismantling the glassware by following these instructions in conjunction with Control of Substances Hazardous to Health regulations COSHH 1988 1 Switch off the electricity supply to the still and allow it to cool completely 2 Turn off the cooling water supply 3 Open the stop cock on the constant level control and allow the boiler to drain completely Close the stop cock 4 Turn on the cooling water supply and allow the boiler to fill to approximately half way to its normal operating level Turn off the water supply 14 Issue 2 Bibby Scientific 5 Into the open funnel of the constant level control carefully add about 1 litre of 10 formic acid or kettle descaler Do not use strong acids such as hydrochloric this can cause severe corrosion of the metal heating element Warning Always handle acids with great care Protective clothing gloves and face mask2. Supply of cooling water is Flow of cooling water is too Replace heater Restore supply Identify and rectify the cause and reset thermostat Adjust the supply to approximately 60 I hr Close stop cock Adjust the supply to approximately 60 I hr Ensure drain pipe falls freely from Still with no kinks Distillate temperature is too high Supply of cooling water is Adjust the supply to e g gt 50 C insufficient approximately 60 I hr a Tubing from condenser distillate outlet to the reservoir is constricted Water in boiler is pumped out of the boiler to drain b Mounting for condenser thermostat is blocked c Supply of cooling water is insufficient Ensure tubing falls freely from Still with no kinks Remove obstruction Adjust the supply to approximately 60 I hr Distillate quality is poor Boiler heavily scaled Clean boiler Output less than 4 hr nominal voltage b Excessive cooling water flow Persistent tripping of the RCD If integrity of the heater is suspect If integrity of the RCD is suspect a Mains electricity supply below Reduce to 60 litres hr Replace Heater Replace RCD x Distillate quality when measured by pH or conductivity is greatly affected by temperature and the presence of absorbed carbon dioxide 17 Issue 2 Ths product meets the applicable EC harmonized standards tor radio frequency intererence and may be expected not to interfere with or be a
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4. operated Before resetting either thermostat AN the still should be allowed to cool completely and the cause of the cut out operation identified and rectified To reset the thermostats the black covers need to be screwed off 12 Issue 2 Bibby Scientific Both Thermostats have tripped The left hand thermostat has been reset lf the thermostats continue to operate consult a qualified electrician or the Technical service Department of Bibby Scientific Ltd 13 Issue 2 Bibby Scientific Care and Maintenance N B Before commencing any maintenance cleaning or fault finding the equipment should be isolated from the mains electricity supply These operations should only be carried out by suitably qualified personnel Only spare parts supplied or approved by Bibby Scientific Ltd or its agent should be used Fitting of non approved parts may affect the performance or safety of the equipment Due to the nature of these parts it is necessary to periodically check the quality of the plastic connectors and hoses There should be no strain on the connectors or hoses Both the hoses and connectors should be intact without any cracking If any damage is discovered on these parts the Still should immediately be turned off as detailed under the Operation section of this manual and not used again before these parts are replaced Please refer to the List of Spare Parts section of this manual for order codes Cleaning
5. 1 Vapour Tube Stabilising O Ring Lower QR38 24 Heater Rubber Gasket 700449 Heater Element Plastic Insert 700450 Warranty Bibby Scientific Ltd warrants this instrument to be free from defects in material and workmanship when used under normal laboratory conditions for a period of three 3 years In the event of a justified claim Bibby Scientific will replace any defective component or replace the unit free of charge This warranty does NOT apply if damage is caused by fire accident misuse neglect incorrect adjustment or repair damage caused by incorrect installation adaptation modification fitting of non approved parts or repair by unauthorised personnel This warranty does not include the heater element which is only guaranteed for up to 1000 hours in use 16 Issue 2 Fault Finding Bibby Scientific In the event of operating difficulties with your Merit Water Still please consult the following notes If these fail to identify and remedy the fault you are advised to contact your supplier or the Technical Service Department of Bibby Scientific Ltd Note Fault Finding should only be carried out by suitably qualified people Burnt out heater Failed electricity supply Thermostat Heater not working Water level in boiler is too low heater exposed insufficient Boiler drain stop cock left open Water level in boiler is too high e g water surging into high condenser Drain is restricted
6. Bibby Scientific Assembly and Operating Instructions 1 Issue 2 Bibby Scientific 4 D Merit W4000 amp W4000 EURO Water Still Bl4 N ep D Janno abuelj 7 sdens aleyinsig U3A pue sjaysep JBWIWOID y202d015 a ri T AN J e H jano N T suong EFA S 4 Je sow y Jajlog jOUOD GAI JUeJSUO gt Jasuapuo gt Jaju J MO JasuapUuo a 1NO Jaddn JasuepuoyD Bibby Scientific Before Use If the equipment is not used in the manner described in this manual the protection provided by the equipment may be impaired N B The Merit Water Still is classified as Permanently Connected Equipment and should be connected to the electricity supply by a qualified electrician in the manner described in the electrical installation section of this manual The Merit Water Still is designed to operate under the following conditions For indoor use Ambient temperature range 5 C to 40 C Altitude up to 2000m Relative humidity not exceeding 80 Mains supply voltage fluctuations not greater than 10 of nominal QOvervoltage category II IEC60364 4 443 Pollution degree 2 IEC664 The Distinction Water Still complies with the following European Directives 89 336 EEC E M C DIRECTIVE Amended by 92 31 EEC and 93 68 EEC 73 23 EEC L V D Amended by 93 68 EEC Limitations of use This product meets the applicable E C harmonised standards for radio frequency interference and may b
7. al flange Pull the flange and insert towards the open end of the tapered glass tube until the insert presses on the glass lil Place the rubber gasket over the heater coils 6 Issue 2 Bibby Scientific Boiler vce LOW TO ey r SUNA 700 BEFORE RES SETTING ak HT A YW AN N Heater Rubber Screw Metal Flange Plastic Insert Gasket Fig 2 IV Insert the heating element through the tapered glass tube and into the boiler V Insert the three bolts into the threaded holes in the heater and evenly tighten as Fig 3 Do not over tighten a Wi EN Ns Wo Wk i A E er Fig 3 7 Issue 2 Bibby Scientific 4 Connect the springs of the 2 metal straps to the rear of the cradles 5 Feed the heater electric cable through the hole in the base of the support stand Place the boiler and heater assembly in the cradle of the stand Ensure the stop cock on the boiler is facing the front Attach the free ends of the metal straps to the front of the cradles to secure the boiler in place as Fig 1 6 Close the stop cock and remove any covers off the boiler 7 Ensure the Sealing O Ring and Stabilising O Ring are correctly positioned as shown in Fig 4 Cooling water outlet Condenser Sealing o ring Vapour tube Distillate Outlet Fig 4 8 Fit the condenser distillate outlet tubing and tie strap not included 9 Fit the condenser by mounting it onto the vapour tube of the boil
8. e expected not to interfere with or be affected by other equipment with similar qualifications We cannot be sure that other equipment used in its vicinity will meet these standards and we cannot guarantee that interference will not occur in practice Where there is a possibility that injury damage or loss might occur if equipment malfunctions due to radio frequency interference or for general advice before use please contact the Technical Service Department of Bibby Scientific Ltd 3 Issue 2 Bibby Scientific Issue Date Reason February 2014 _ Initial Issue December 2014 Addition of thermostat reset button photos Contents Location p 5 Assembly 0 6 Electrical Installation p 10 Operation p 11 Safety Cut Outs p 12 Care and Maintenance p 14 Cleaning p 14 Spares p 16 Warranty p 16 Fault Finding p 17 4 Issue 2 Bibby Scientific Location The Merit Water Still can be wall or bench mounted Select a convenient location which has access to the following services Electrical Supply Before connection please ensure that the line supply is suitable The Merit Water Still is available in two models model no W4000 for supplies rated at 3kW 220 240V 50 60 Hz single phase and model no W4000 EURO for supplies rated at 3kW 200 240V 50 60 Hz single phase Supplies should be fitted with a 30mA RCD circuit breaker Water Supply A cold water supply capable of providing a minimum flow rate of 60 I hr Ensure all wate
9. ent is supplied with a 1 7m of flexible triple core circular cable to CMA 3183 TQ specification The conductors are 1 5mm to BS 6360 Class 5 insulated with E P R The outer sheath is 85 C heat resisting tyoe C S P to HOFR BS 6500 Table 9 Connection to the mains electrical supply should be via a double pole 30mA RCD isolation circuit breaker with a continuous current carrying capacity of 15A at 250V and overcurrent protection of 15A 250V These devices should be sited near to the equipment and be clearly marked Disconnect device for Merit Water Still Connect to the line supply noting that the wires in the instrument lead are coloured in accordance with the following code Blue Neutral Brown Live Green amp Yellow Earth Main Cable Replacement lf the mains cable requires replacement only specially prepared spare mains lead obtained from Bibby Scientific should be used Hot Warning Some parts of the product may become hot during AN use These are clearly marked with Hot Warning Labels Avoid touching these parts 10 Issue 2 Bibby Scientific Operation 1 Turn on the cold water supply and adjust the flow to approximately 60 I hr Note It is strongly recommended to measure the flow rate failure to do so can result in possible injury from hot water exiting from the Still If a flow meter isn t available a simple measurement can be performed with a 11 beaker Over a timed period of five minut
10. er Ensure the distillate outlet tube of the condenser faces the front and the cooling water outlet faces parallel to the unit as Fig 4 When resistance is felt push down slightly to create a seal until there is approximately a 5 10mm gap between the condenser and the boiler 8 Issue 2 Bibby Scientific 10 From the hose kit take the length of 8mm bore hose fitted with the plastic screw thread connectors at either end Referring to Fig 1 screw one end of the hose to the condenser outlet upper and the other end to the glass thread on the constant level control 11 Fitthe spare connector to the condenser inlet connection lower This is to allow connection to the water supply Use suitable good quality tubing and hose clips Not included 12 Take the 1m length of 16mm tubing from the hose kit Insert the end in hot water to make it more supple Attach to the drain outlet of the constant level control secure with the tie strap provided Ensure the tubing falls away from the still with no kinks or bends to impede water flow 13 Turn on the water supply and check for leaks 14 Carry out the electrical installation 9 Issue 2 Bibby Scientific Electrical Installation GQ THIS EQUIPMENT MUST BE EARTHED The electrical Installation should be carried out by a qualified electrician The following method is recommended The earthed spigots should pass a high current i e gt 200mA earth continuity test The equipm
11. es the breaker should be completely filled five times Observe that the water flows via the condenser and into the boiler Wait until the boiler has attained its correct operating level and make sure that the excess water is flowing to drain 2 Switch on the electricity supply to the heating element at the mains isolation switch For the W4000 EURO version switch on the switch situated on the heater 3 After a few minutes the water will start to boil and distillate will emerge from the condenser With new glassware or after cleaning it is advisable to allow this to run to drain for approximately 30 minutes before beginning collection 4 To turn off the still first turn off the heating element but allow cooling water to continue for a further 10 minutes to allow the still to cool Warning Do not use this equipment to distil any liquid other than water 11 Issue 2 Bibby Scientific Safety Cut Outs The Merit Water Still is protected by two safety cut outs Boiler heater thermostats AN Should the boiler water level fall and expose the element the thermostats will operate and turn off the electricity supply to the element After operation of either of the thermostats normal operation may be resumed by resetting the thermostats by means of their respective reset buttons mounted on the end of the heater end cover Remove the black plastic cover and then press the button a slight click will be heard if the thermostat had
12. ffected by other equipment Gonc pas with Similar quaifxations We cannot be lt equipment used in its vicinity will meet these standards that other aux memes am n avons interf rer directives pas la certitude que tout Bibby Scientific conforme aux normes narmomse ees de TUE applicables aux interf rences rachofr quences I ne doit d autres guipements r pondant Orme nous Ce produit est avec re Otre affect par eux autre quipement utilise We cannot in practice Tj DOUVOfNS Das En cas nous t3 pratique NOMes gans tespecte ces diniert reme a proxirnmte Garant guarantee that interference wil not occur Where there is a possibeity that ryury damage Patsence or loss might occur if equipment malfunctions due to radio Ge possiiwitte de blessure dommage ou perte sure a un Trequency interference of for general advice before use Gysionctionnement de l quipement en rason d iniert rencnes contact the Technical Department of Bibby Scientific Ltd rachotr quences ou pour tout consell d ordre genera veule contacter le Service technique de Bibby Scientific Ltd Declaration of Conformity Water Stills Model W4000 amp W4000 Euro These products comply with the requirements of the EU Directives listed below EMC Directive Low voltage Directive LVD 2004 108 EC 2006 95 EC Compliance with the requirements of these Directives is claimed by meeting the following standard
13. r supplies are earth bonded Drain A waste water drain located below the level of the still so that the drain pipe can fall away straight without kinks or bends to allow an unimpeded flow Ensure all drainage systems are earth bonded Reservoir A distillate collection reservoir should be located beneath the still 5 Issue 2 Bibby Scientific Assembly Your Merit W4000 has been designed with ease of assembly specifically in mind Before commencing assembly please study the illustrations and text to familiarise yourself with the general layout During assembly follow the sequence of instructions and do not connect the mains electricity supply until directed ook Unpack the Still and identify the following components Qty Component Catalogue No 1 Boiler Stand with 2 Boiler Straps I W4000 S 1 Boiler I W4000 B 1 Condenser WC48 M2 1 1 Heater 700692 ES for W4000 700693 ES for W4000 EURO 1 Hose Kit I W4000 HK 1 Gasket Kit I MERIT GK 2 Take the metal stand and place in the desired location Note that 2 screw holes are provided for wall mounting 3 Take the boiler W4000 B the heater 700692 ES and the gasket kit I MERIT GK and assemble as shown in Fig 2 and the following I Place the bolts through the metal flange in the manner shown and then place the metal flange over the tapered glass tube of the boiler li Take the plastic insert and bend it round the tapered glass tube of the boiler and into the met
14. s EN 61326 1 2006 Electrical Equipment for Measurement Control and Laboratory use EN 61010 1 2001 Safety Requirements Electrical Equipment for Measurement Control and Laboratory use EN 61010 2 010 2003 Particular Requirements for Laboratory Equipment for Heating of Materials ficates and Full Reports and RETSO2Z87 Compliance Cert Ref RETSO2Z87 The above certificates and reports from a independent test house are available upon request CE mark affixed 01 vb ii eel te ot Signed S Marnott Date Technical D Bibby Scientific Ltd Authority Director Stone Staffs ST15 OSA UK Bibby Scientific Bibby Scientific Ltr J 1 785 BY 3748 Jel 44 0 1785812121 Fax 44 0 18 Issue 2 Bibby Scientific Notes 19 Issue 2 Bibby Scientific Bibby Scientific Ltd Beacon Road Stone Staffordshire ST15 OSA United Ki Tek 44 0 1785 812121 Fax 44 0 1785 813748 e mail info bibby scientific cam www bibby soientific com Bibby Scientific France SAS Zi du Rocher Vert BP 79 77793 Nemours Cedex France Tel 33 164451313 Fax 33 1 64 45 13 00 e mail bsf bibby scentific fr www bibby scentific com Bibby Scientific US Ltd 3 Terri Lane Suite 10 Burlington NJ 08016 USA Tel 800 225 9243 Fax 609 589 2571 WA bibby soentific com 20 Bibby Scientific Bibby Scientific Singapore Ltd Prudential Tower Level 26 30 Cecil Street Singapore 049712 Tel 65 6631
15. s should be worn during the descaling operation Remove any acid spills immediately Turn on the water supply and fill the boiler to the normal operating level The water will flush the acid into the boiler The water supply should be turned off when the level in the boiler is slightly below the overflow 6 Leave the acid in the boiler to dissolve the scale This may take some time depending on the severity of the build up 7 Open the stop cock and allow the boiler to drain Note If the acid in the boiler has not been completely neutralised the liquid flowing to drain may be highly acidic All necessary safety precautions should be observed around the drain and any effluent control procedures followed 8 Close the stop cock turn on the water and allow the boiler to fill with cold water Turn off the water re open the stop cock and allow the boiler to drain Repeat this procedure three times 9 The Merit Water Still may now be restarted by referring to the instructions given under Operation in this manual Note The stand and outer surfaces of the glassware should be cleaned using a damp cloth and a mild detergent solution 15 Issue 2 Bibby Scientific Spares Boiler W4000 B Condenser WC48 M2 Heater Complete With Thermostats W4000 240V A6 6 Heater Complete With Thermostats W4000 220V A6 6 EURO Hose Kit W4000 HK Gasket Kit W4000 GK Stop Cock Assembly A4000 RCOCK Vapour Tube Sealing O Ring Upper WB48 0
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