Barloword W4000 User Manual
Assembly and operating instructions
Instructions de montage et de fonctionnement
Istruzioni di montaggio e funzionamento
Instrucciones de montaje y funcionamiento
Montage- und Betriebsanleitung
Water Still
Merit
W4000 & W4000/EURO
2
Before use
If the equipment is not used in the manner described in this
manual the protection provided by the equipment may be
impaired.
Note: 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 only
❖ 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
❖ Overvoltage category II IEC60364-4-443
❖ Pollution degree 2 IEC664
Limitations of use
This product meets the applicable E.C. harmonised standards for
radio frequency interference and may be 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
Service Department of Bibby Scientific Ltd.
Merit Water Still English
W4000 & W4000/EURO
The Merit 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
Figure 1 General assembly
Condenser
Boiler
Thermostat reset
buttons
Heater
Vent Distillate
outlet
Straps
Stopcock
To drain
Constant level
control
Cooling water inlet
Gaskets and
flange
Cooling water outlet
3
ii) Take the plastic insert and place this round the glass tube
and into the metal flange. Pull the flange and insert
towards the end of the glass tube so that they press onto
the glass.
iii) Place the rubber gasket over the heater coils and then
insert the heating element through the tapered glass tube
and into the boiler.
iv) Now secure the heater using the 3 bolts provided. Do not
over tighten.
4. Place the boiler and heater assembly in the ‘cradle’ of the
stand. Ensure the stopcock on the boiler is facing to the front.
Feed the electric cable of the heater through the hole in the
base of the support stand. Secure with the 2 straps provided.
5. Ensure that the sealing o-ring and stabilising o-ring are correctly
positioned, as shown in Figure 3. Fit the condenser WC48/M2
by mounting it onto the vapour tube of the boiler. Ensure the
distillate outlet tube of the condenser faces the front and the
cooling outlet faces parallel to the unit.
Location
The Merit Water Still can be wall or bench mounted. Select a
convenient location which has access to the following services:–
Electricity Supply
Before connection please ensure that the line supply is suitable.
The Merit Water Still W4000 is suitable for supplies rated at
3kW, 220-240V, 50/60Hz~ single phase.
W4000/Euro is suitable for supplies rated at 3kW, 200-240V,
50/60Hz~ single phase.
Water Supply
A cold water supply capable of providing a minimum flow rate of
60 l/hr.
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.
Reservoir
A distillate collection reservoir should be located beneath the still.
Assembly
1. Unpack the water still and identify the following components:–
Qty. Component Catalogue No.
1 Support stand with 2 boiler straps W4000/S
1 Boiler W4000/B
1 Condenser WC48/M2
1 Heater A6/6 (240V)
or A6/6/EURO (220V)
1 Hose Kit W4000/HK
1 Gasket Kit W4000/GK
2. Take the metal stand and place in the desired location.
Note that 2 screw holes are provided for wall fitting.
3. Take the boiler W4000/B, the heater and gasket kit W4000/GK.
Assemble the heater into the boiler as shown in Figure 2.
i) Place the metal flange over the tapered glass tube of the
boiler – ensuring that the flat side of the flange faces the
boiler.
Figure 3
Figure 2 Flange assembly
Bolts
Tapered
glass
tube
Metal
flange
Plastic
insert
Rubber
gasket
Heater
Cooling
water
outlet
Outlet
tube
Condenser
Sealing o-ring
Vapour tube
Stabilising o-ring
4
Operation
1. Turn on the cold water supply and adjust the flowrate to
approx. 60 l/h.
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 1L beaker.
Over a timed period of five minutes the beaker 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 freely 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
the 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.
Safety cut-outs
The Merit Water Still is protected by two safety cut-outs:
Boiler heater thermostats
Should the boiler water level fall and expose the
element the thermostats will operate and turn off
the electricity supply to the element.
6. From the hose kit take the 225mm length of 8mm bore plastics
hose fitted with screwthread connectors at either end. Referring
to Figure 1, screw one end of the hose to the upper outlet of
the condenser and the other end to the glass thread on the
constant level control. If the Still has been correctly assembled
the hose should comfortably reach, without any strain.
7. Take the 1000mm length of 16mm bore plastic hose and
carefully connect to the outlet of the constant level control. For
easy connection first warm the hose with hot water.
Secure with a tie strap.
8. Lead the free end of the tubing to drain, ensuring it falls away
from the still with no kinks or bends to impede water flow.
9. Ensure the stopcock on the constant level control is closed.
10. Connect the lower inlet of the condenser to the cold water feed
supply. A plastic screwthread connector is provided for easy
attachment to the condenser.
Select good quality tubing and ensure all connections are
secured with hose clips.
11. Connect the distillate outlet on the condenser to a suitable
collection reservoir.
Electrical installation
THIS EQUIPMENT MUST BE EARTHED!
The electrical installation should only be carried out by a qualified
electrician.
The equipment is supplied with 1.7m of flexible triple core circular
cable to CMA 3183 TQ specification. The conductors are 1.5mm
2
to
BS 6360 Class 5 insulated with E.P.R. The outer sheath is 85°C heat
resisting type C.S.P. to HOFR, BS 6500 Table 9.
Connection to the mains electrical supply, should be via a double
pole isolation switch with a continuous current carrying capacity of
15A at 250v and overcurrent protection should be provided by either
an approved fuse rated at 15A, 250V in each pole or a double pole
approved circuit breaker of similar rating.
These devices should be sited near to the equipment and 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:–
Brown – Live
Blue – Neutral
Yellow/Green – Earth
Mains Cable Replacement
If the mains cable requires replacement, only specially prepared spare
mains lead obtained from Bibby Scientific should be used.
Circuit diagram
(S) Denotes safety critical component.
LN
~240V
(S)
Switch
(W4000/EURO only)
(S)
Thermostat
Lamp
(S)
Thermostat
E
Element
Heater flange
5
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 operated.
Before resetting either thermostat the still should be
allowed to cool completely and the cause of cut-out
operation identified and rectified.
If the thermostats continue to operate consult a qualified electrician
or the Service Department of Bibby Scientific Ltd.
Care and maintenance
Note: Before commencing any maintenance, cleaning or fault
finding the equipment should be isolated from the mains
electricity supply. These operations should be only 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.
Maintenance
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
Over a period of operation scale deposits will build up inside the
boiler. To obtain optimum performance from the still, the 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.
Note: Heavy scaling will reduce distilled water quality and can
shorten the life of the heating element.
It 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 stopcock on the constant level control and allow the
boiler to drain completely, Close stopcock.
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.
List of spare parts
The following components are available from most laboratory
suppliers. In case of difficulty, please contact Bibby Scientific Ltd.
Cat. No.
Boiler W4000/B
Condenser WC48/M2
Heater (complete with thermostats) 240V A6/6
(complete with thermostats) 220V A6/6/EURO
Set of heater fixings (flange, gasket, insert and bolts) W4000/GK
Hose kit W4000/HK
5. Into the open funnel of the constant level control carefully add
about 1 litre of 10% formic acid solution 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-MASKS 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 desolve the scale. This may take
some time depending on the severity of the build-up.
7. Open the stopcock 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 stopcock, turn on the water and allow the boiler to fill
with cold water. Turn off the water, re-open the stopcock 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.
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.
6
Fault finding
In the event of operating difficulties with your Merit Still, please consult the following notes.
If these fail to identify and remedy the fault, then you are advised to seek the help of your
supplier or the Service Department of Bibby Scientific Ltd.
Note – Fault finding should only be carried out by suitably qualified people.
Symptom Cause Remedy
1. Water level in boiler is too a) Supply of feed/cooling water a) Increase flowrate of water to
LOW. e.g. – heater exposed. is insufficient. approx. 60 litres/hour.
b) Stopcock on boiler inadvertently b) Close stopcock.
left open.
2. Water level in boiler is too a) Supply of feed/cooling water a) Reduce flowrate of water to
HIGH. e.g. – boiling water is excessive. approx. 60 litres/hour.
surging into condenser. b) Flow of drainage water b) Ensure drainage tubing falls
is constricted. freely.
3. Water in boiler is “pumped” a) Tubing from condenser distillate a) Ensure tubing falls freely to
out of boiler to drain. outlet to reservoir is constricted. reservoir without kinks or bends.
b) Vent on condenser distillate b) Remove obstruction.
outlet is blocked.
c) Supply of feed/cooling water c) Increase flowrate of water to
is insufficient. approx. 60 litres/hour.
4. Distillate temperature is Flow of cooling water is insufficient. Increase flowrate of water to
high, e.g. – above 50°C. approx. 60 litres/hour.
5. Distillate rate less than 4 litres/hour. Mains voltage low –
Excessive cooling water flow. Reduce to 60 litres/hour.
6. Distillate quality poor*. Boiler heavily scaled. Clean boiler.
7. Heater not working. a) Burnt-out heater. a) Replace heater.
b) Mains electricity fuse blown. b) Replace fuse.
c) Thermostat operated. c) Reset.
*Distillate quality when determined by pH or electrical conductivity is greatly affected by temperature and the
presence of absorbed carbon dioxide.
7
Avant l’utilisation
Si l’appareil n’est pas utilisé de la manière décrite
ci-après, les sécurités prévues peuvent être défaillantes.
N.B. L’appareil à cau distillée MERIT est classé parmis les
«appareils connectés en permanence» et doit être raccordé par
un électricien qualifié comme décrit dans la section
«installation électrique» de ce manuel.
Le distillateur MERIT est prévu pour fonctionner dans les conditions
suivantes :
❖ Utilisation en intérier uniquement.
❖ Température d’utilisation +5°C à 40°C.
❖ Altitude < 2000m.
❖ Humidité relative < 80%.
❖ Alimentation électrique ne variant pas de ±10%
autour de la valeur nominale.
❖ Survoltage catégorie II IEC60364-4-443.
❖ Degré de pollution 2 IEC664.
Limites d’applications
Cet appareil est conforme aux normes européennes standards
concernant les fréquences radios et ne doit pas ou ne peut être
perturbé par un autre appareil ayant les mêmes spécifications.
Toutefois, nous ne pouvons garantir qu’un autre appareil, utilisé à
proximité, ne répondant pas à ces normes, ne provoque pas
d’interférences. Dans le cas ou le distillateur aurait subi des
dommages à cause des interférences, ne pas hésiter à contacter le
service aprés-ventes Bibby Scientific France.
Distillateur Français
W4000 & W4000/EURO
Le distillateur MERIT est en conformité avec les
normes Européennes:
89/336/EEC - E.M.C. DIRECTIVE
Amendées par 92/31/EEC & 93/68/EEC
73/23/EEC - L.V.D. Amendée par 93/68/EEC
Figure 1 : Vue d’ensemble
Réfrigérant
Bouilleur
Boutons de
rearmement
thermostat
Elément
Chauffant
Event Sortie
distillat
Anneau de
fixation
Robinet
Sortie eau de
refroidissement
Contrôleur
de niveau
Entrée de l’eau
Joint
d’étanchéité
et collier de
fixation
8
Installation
Le distillateur MERIT peut être installé sur une paillasse ou fixé au
mur. Choisir un emplacement à proximité des dispositifs suivants:
Alimentation électrique:
Avant de connecter l’appareil, vérifier que l’alimentation électrique
est correcte. Modèle W4000 EURO pour alimentation électrique 3kW
220V, 50/60Hz monophasé.
Alimentation en eau:
Source d’eau froide capable de fournir un débit minimum de 60 l/hr.
Evacuation:
Dispositif d’évacuation ou évier situé en dessous de l’appareil de
façon à ce que le tuyau d’évacuation d’eau ne présente aucun
coude.
Réservoir de recette:
Un réservoir de recette du distillat pourra être installé sous l’appareil.
Montage
1. Déballer le distillateur et identifier les
composants suivants:–
Qte Designation Référence
1 Support muni de 2 anneaux
métalliques de fixation W4000/S
1 Bouilleur 775421
1 Réfrigérant 775361
1 Elément chauffant 220V /3kW 775422
1 Jeu de tuyaux 775426
1 Jeu de colliers de fixation 775424
2. Installer le support à l’emplacement choisi. 2 trous permettent
de le visser au mur si nécessaire.
3. Prendre le bouilleur, l’élément chauffant et le jeu de colliers.
Assembler selon la figure 2.
i) Placer le collier métallique autour du tube évasé à
l’extrémité du bouilleur. Le côté plat du collier métallique
doit faire face au bouilleur.
ii) Insérer le collier en graphite à l’intérieur du collier
métallique. Tirer le collier métaliique et son insert en
graphite vers l’extrémité du bouiller de façon à ce qui’ils
exercent une pression sur le tube évasé.
iii) Insérer le joint en caoutchouc par dessus les spires de
l’élément chauffant. Introduire l’élément chauffant dans le
bouilleur.
iv) Fixer l’élément chauffant en vissant les 3 boulons. Ne pas
serrer à bloc.
4. Placer le bouiller et l’élément chauffant sur le support. Le
robinet doit alors faire face à l’utilisateur. Faire passer le câble
d’alimentation à travers l’orifice situé à la base du support. Fixer
le bouilleur avec les 2 anneaux métalliques.
5. Enfiler le réfrigérant sur le tube vapeur du bouilleur. L’orifice de
sortie du distillat doit faire face à l’utilisateur.
Figure 2
Boulon
Tube évasé Collier
métallique
Collier en
graphite
Joint en
caoutchouc
Elément
chauffant
9
Mise en route
1. Ouvrir le robinet d’eau froide et régler le débit à 60 litres/heure
environ. L’eau doit circuler à travers le réfrigérant. Attendre que
le niveau d’eau dans le bouilleur soit stable. Vérifier que l’eau
s’écoule normalement vers l’évacuation.
2. Allumer l’interrupteur de l’élément chauffant.
Observer l’ébullition et vérifier que le distillat s’écoule
normalement vers le réservoir de recette.
ATTENTION !
NE PAS UTILISER CET APPAREIL POUR DISTILLER AUTRE CHOSE
QUE DE L’EAU.
Thermostats de sécurité
Le distillateur MERIT est protégé par deux thermostats de sécurité.
Thermostat de sur-chauffe du bouilleur.
Si le controleur de niveau est défectueux et expose
l’elément chauffant à une sur-chauffe, le thermostat
agit et coupe l’alimentation électrique de la
résistance.
Après l’opération d’un des deux thermostats, il suffit de les réarmer
en appuyant simplement sur le bouton adéquoit situé à gauche de
l’élément chauffant.
Retirer le capuchon plastique et appuyer sur le bouton (un léger «
clic » doit se produire).
AVANT LE REARMEMENT, IL FAUT ATTENDRE LE
REFROIDISSEMENT DE L’APPAREIL, ET LA CAUSE DU
DECLENCHEMENT DES THERMOSTATS, IDENTIFIEE ET
RECTIFIEE.
Si le thermostat continue de se déclencher, consulter un électricien
qualifié ou le service technique de Bibby Scientific France.
6. Dans le jeu de tuyaux, prendre le tube 225mm de long et 8mm
de diamètre équipé de connecteurs à vis à ses 2 extrémités.
Visser une extrémité du tuyau sur le raccord à vis supérieur du
réfrigérant et l’autre extrémité sur le raccord à vis du contrôleur
de niveau (voir figure 1).
7. Prendre le tuyau de 1000 mm de long et 16 mm de diamètre.
Fixer avec précaution son extrémité en sortie du contrôleur de
niveau. Pour faciliter cette opération, passer prélablement
l’extrémité du tuyau sous l’eau chaude. Fixer avec un collier.
8. Placer l’extrémité libre du tuyau vers l’évacuation, en s’assurant
qu’il ne présente aucun coude pouvant perturber l’écoulement
de l’eau.
9. Vérifier que le robinet du contrôleur de niveau est fermé.
10. Visser le connecteur plastique sur le raccord à vis inférieur du
réfrigérant. Fixer le tuyau d’alimentation en eau froide sur ce
connecteur. Choisir un tuyau de bonne qualite et vérifier que
toutes les connexions sont renforcées par un collier.
11. Relier par un tuyau l’orifice de sortie du distillat au réservoir de
recette.
Installation electrique
CET APPAREIL DOIT ETRE RELIE A LA TERRE !
L’installation électrique doit être effectuée par un électricien qualifié.
L’appareil est livré avec un câble de 1,7m (conforme aux
spécifications CMA 3183 TQ). Les fils conducteurs, de section
1,5mm
2
(conformes aux spécifications BS 6360 classe 5) protégés
avec de l’EPR. La résistance à la température est de 85°C et de type
CSP à HOFR, BS 6500, table 9.
Le raccordement à l’alimentation électrique doit être effectué par
l’intermédiaire d’un disjoncteur bi-polaire 15A/250V ou de deux
fusibles, de pouvoir de coupure identique.
Cet équipement doit se trouver à proximité de l’appareil et être
clairement identifier «protection pour distillateur MERIT».
Raccorder le câble selon les indications suivantes:
Marron - Phase
Bleu - Neutre
Jaune/vert - Terre
Si le câble d’alimentation nécessite un remplacement, un câble
spécial, fournis par Bibby Scientific France, doit être utilisé.
Schema de principe
PN
Lampe
(S)
Thermostat
120°C
Element
Chauffant
(S)
Interrupteur
(S)
Thermostat
120°C
(S) Composant de sécurité
T
Couvercle
~240V
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