Lauda Puridest PD 2 D User manual

Operating Instructions
Puridest BiDistillationApparatus
PD 2 D, PD4 D, PD8 D

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LAUDA Puridest Bi Distillation Apparatus models PD 2 D,PD 4 D, PD 8D produce ultra-pure, bacteria and pyrogen-free
distillate with a very low conductivity (approx 1.6 µS/cm at 25°C).The distillate is in conformity with DAB regulations and
the regulations of international pharmacopoeia.
I II III IV V VI
I Main switch
II Pilot lamp "Operation Mono stage"
III Pilot lamp "Low water Mono stage"
IV Pilot lamp "Clean“
V Pilot lamp "Operation Bistage"
VI Pilot lamp "Low water Bi stage"
Before installation, please check whether contents of package are in good order and complete.
Should younote any damages or have any reasons for complaint, please contact your supplier or directly.
LAUDA-GFL Gesellschaft für Labortechnik mbH
Schulze-Delitzsch-Str. 4+5
30938 Burgwedel - Deutschland
Telefon: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.gfl.de

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Content
Operating Instructions...................................................................................................................................................................1
1 Usingof the Bi Distillation Apparatus...................................................................................................................................7
Intended Use...................................................................................................................................................................................7 1.1
Improper Use..................................................................................................................................................................................7 1.2
2 Warranty................................................................................................................................................................................8
3 Before Initiation.....................................................................................................................................................................8
4 Transport,Set-up and Location of the Distillation Apparatus..............................................................................................8
5 Removing the Transport Protection of the Glass Condenser...............................................................................................9
6 Operating Voltage.................................................................................................................................................................9
7 Water Connections.............................................................................................................................................................10
Tap water inlet①.........................................................................................................................................................................10 7.1
Inlet separate water supply ❷...................................................................................................................................................10 7.2
Outlet separate water supply ❹...............................................................................................................................................10 7.3
Cooling water outlet ⑥...............................................................................................................................................................11 7.4
Drain Bi-stage boiler⑦...............................................................................................................................................................11 7.5
Drain Mono stage boiler ⑧........................................................................................................................................................11 7.6
8 Initiation..............................................................................................................................................................................11
9 FunctionalDescription.......................................................................................................................................................12
Distillation Apparatus for double distillation............................................................................................................................12 9.1
Bi Distillation Apparatus withseparate water supply.............................................................................................................12 9.2
Degassing.......................................................................................................................................................................................12 9.3
10 Maintenance,Service andTrouble Shooting......................................................................................................................13
Descaling........................................................................................................................................................................................13 10.1
Sterilising........................................................................................................................................................................................13 10.2
Water shortage in mono or bi stage..........................................................................................................................................14 10.3
Pilot lamp "Clean".........................................................................................................................................................................14 10.4
11 Disposal of Old Units..........................................................................................................................................................15
12 TechnicalData....................................................................................................................................................................16
Puridest Bi Distillation Apparatus models PD 2 D, PD 4D................................................................................................16 12.1
Puridest Bi Distillation Apparatus model PD 8 D..................................................................................................................17 12.2
13 Circuit diagram...................................................................................................................................................................18
PD 2 D...........................................................................................................................................................................................18 13.1

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PD 4 D - version 220 V / 3 ~..................................................................................................................................................19 13.2
PD 4 D - version 400 V / 3 ~..................................................................................................................................................19 13.3
PD 8 D - version 220 V / 3 ~..................................................................................................................................................20 13.4
PD 8 D - version 400 V / 3 ~..................................................................................................................................................20 13.5
14 Connectionto the mains supply.........................................................................................................................................21
Connection to the mains supply (examples)..........................................................................................................................22 14.1
14.1.1 PD 2 D for 230V............................................................................................................................................................. 22
14.1.2 PD 4 D and PD 8D for 220 V / 3 ~at Mains supply 230V / 3 ~ / PE 50 / 60 Hz.......................................23
14.1.3 PD 4 D and PD 8D for 220 V / 3 ~at Mains supply 230V / 3 ~ / PE 50 / 60 Hz.......................................23
14.1.4 PD 4 D and PD 8D for 400 V / 3 ~at Mains supply 400V / 3 ~ / N/ PE 50 / 60Hz.................................24
14.1.5 PD 4 D and PD 8D for 400 V / 3 ~at Mains supply 400V / 3 ~ / N/ PE 50 / 60Hz.................................24
15 List of spare parts................................................................................................................................................................25
16 Accessories andOptions.....................................................................................................................................................27

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1 Using of the Bi Distillation Apparatus
Intended Use 1.1
In LAUDA Puridest Bi Distillation Apparatus models PD 2 D,PD 4 D and PD 8D, electric heating elementsserve to boil
water in the mono stage boiler (left-hand side)and evaporate it. The steam is led to the steel condenser of the mono stage
where it condenses on a water-cooled cooling coil. The produced distillate drips into the boiler of the bi stage (right-hand
side), or can be withdrawn through a stop cock made of borosilicate glass. The electric heating elements inthe bi stage
bring the water in the right-handside alembic to the boil. The steam is led into the condenser of thesecond distillation
stage and condenses as bi distillate on a water-cooled cooling coil.The condenser of the bistage, including the splash
protection and cooling coil as well as the complete bi distillate outlet with dust cover are made of Duran® / borosilicate
glass 3.3.
The filling level of both boilers is monitored by two floatswitches, the heating elements of both stagesare additionally
controlled by thermostatic lowwater cut-offs. After switchingthe Double Distiller on, it is automatically operated.
Dependingon the model, theDouble Distiller produces approx. 2 litres (PD 2D), 4 litres (PD 4 D) or 8 litres (PD 8 D)
bidistillate perhour.
Mono- and Bi-distillate is withdrawn through the two glass fittings at the front of the unit. Attention, the distilled water
leaves the Distillation Apparatus with more than 90 °C!Danger of scaldings! Depending on thetap water quality, the
produced mono distillate has a conductivity of approx. 2.2 µS/cm at 25°C. The produced bi distillate is dependent on
the qualityof the evaporated mono distillate and has a conductivity of approx. 1.6 µS/cm at 25°C. To feed the Distillation
Apparatus, preferably use tap water of drinking quality. Pleasealso observe the information in chapters 17.2 to 17.4of
these instructions on the possible use of filters andcartridges to pretreat the tap water .
The Bi Distillation Apparatus must be operated within the user's field of vision.
The information contained in these operating instructions must by all means beread and observed. Only
then a perfectoperationof the Bi Distillation Apparatus can beguaranteed. The units may only be installed
and operated by persons who have made themselves familiar with these operating instructions.
Caution:
The accessible inner parts of the housing that can be reached after removingthe outer white cover get
strongly heated up during operation. These parts may only betouched after they have cooled down, or
when wearingsuitable safety gloves.
Improper Use 1.2
LAUDA Puridest Bi Distillation Apparatus, operated in a laboratory, are no Medical Devices. They fall neither under na-
tional nor international MedicalDevice Directives and have to be used and applied accordingly. The Distillation Apparatus
must not be used in potentially explosive surroundings. The Distillation Apparatus mustneither beset up nor operated in
laboratory areas with aggressive or corrosive ambient conditions.

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2 Warranty
For all laboratory apparatus and their accessories from LAUDA-GFL Gesellschaft für Labortechnik mbH, there is a war-
ranty claim, as well for spare parts, repairs and modifications, carriedout by LAUDA-GFL. In order to identify defective
units, we require both model and serial number on the nameplate, left-handside of the Distillation Apparatus and, if appli-
cable, a copyof the invoice.
3 Before Initiation
Important information are marked in boldletters in these instructions, safety indications are additionally markedby the fol-
lowing warning symbols and mandatory signs.
Read and observe the
operating instructions
Warning of hot liquids
and vapour Warning of hot surfaces
Warning of dangerous
electrical voltage General warning Before maintenance and repair
disconnect the unit all-pole from
the electrical mains (pull the plug
from the socket).
4 Transport, Set-up and Location of the Distillation Apparatus
Protect yourself and the Distillation Apparatus during transport and setupby working carefully and
avoid dangerof e. g. shifting or tilting the unit as well asrisk of injury by liftingheavy loads. Caution,
Distillation Apparatus PD 2 D(net weight 20.4 kg), PD 4D (net weight 27.5 kg)and PD 8 D (net
weight 43,0kg) must be lifted, carried and transported to the location by at least two persons.
The Distillation Apparatus can be held between the fourstands of the unit and lifted forsetup.
The unit is suitable for both bench and wall mounting. It is only suitable for indoor use. Table-top setting-up on solid, even
and levelsurfaces only. Make sure to placethe unit only on a watertight,temperature-resistant,non-flammablesurface.
The locationmust provide sufficient space as well as the necessary carrying capacity for the total weight ofthe Distillation
Apparatus (unit weight as per Technical Data of this manual, plus weight of the filling).
For setting-upon the wall check the carrying capacity ofthe wall in connection with the total weight of the unit (appliance
plus water filling, see Technical Data). Makesure to check the on-site fixing elements in order to guarantee safe holdof
the Distillation Apparatus. The fixing material must be suitable for the substrate. Use only tested and proven fixing materi-
al.
There are two keyholes for wall mounting at the back ofthe Distillation Apparatus. Place two fixing screws (not included in
the scopeof supply) in the wall, 40 cm apart, and nest thestill on the keyholes. The Distillation Apparatus is delivered
without fixing material.

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5 Removing the Transport Protection of the Glass Condenser
When installing the glass condenser and the glass fittings, pay special attention due to danger of glass breakage.
The glass condenser and the glass fittings are placed beneath the hood of the Distiller. In order to be able to remove the
hood, two each quick-release catches on each side of the unitas well as two hidden screws (see photo below) between the
hood and the basic housing need to be loosened.
Before initiation, remove the transport protection (bubble wrap and rigid foam parts) around the glass condenser, clear all
connection openings that are covered by adhesive tape or plastic film and carefully empty the sand from the condenser.
Rinse the condenser with clear water and re-assemble as shown below. Place the cone of the glass condenser into the
plastic ring on the right-hand side boiler. The bi-distillate outlet must point to the front. Place the round felt washer on top
of the glass condenser; it will prevent dislodging of the holding clamp which is connected with the unit through the four
holdingarms ③. Fit together those hose couplings ②having thesame colour.
Place the hood back onto the unit and secure with the two
screws and four quick-release catches. Then install the glass
fittings. Screw together the glass valve with the mono-
distillate outlet (left-hand front of the unit), and the outlet
tube with the bi-distillate outlet.
6 Operating Voltage
The Distillation Apparatus must be connected tothe mains supply through a correctly installed, on-site
main switch, or, permanently connected,through a CEE plug in conformity with IECstandard 60309-
2. The unit isa protection class I electrical appliance, a connection to the protective earth is to be en-
sured. For information on the value of therequired mains fuse see Technical Data, chapter 12,of these
instructions.
The electrical connection must ensure an all-pole separation from the mains at any time. Shock-proof
sockets ormain switches to separate the Distillation Apparatusfrom the mainsmust be installedinsuch
a way as toensure clear identifiability and easy accessibility at any time.
The mains connection cable must not touch any hot surfaces of the unit. It may not lead underneath
the unit. The main switch of the Distillation Apparatus must be off (position O). The voltage on the
nameplate (at the left-handside of the unit) must be identical to the mains voltage. If they are identical,
connect the unit to the mains.
Please also refer to chapter 15 of these operating instructions "Connection to theMains"..

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7 Water Connections
All water connections of the Distillation Apparatus, exceptthe distillate withdrawals, are situated on the right-hand side of
the unit. Hoses for water inlet and outlet arenot included in thestandard scope ofsupply.
Tap water inlet ① 7.1
The tap water inlet provides the Distillation Apparatus with water through a solenoid valve. The hose connection must be
connected to the water mains supply with a ½" (inch,Æinside12.7mm) pressure hose and a lockable water connection (
③, cut-off valve). Both hose connections must by all means be secured with hose clips!
Inlet separate water supply❷ 7.2
Part of an accessory. Only fitted if a separate water supply was ordered.
The water inlet for theseparate water supply ❷feeds pretreated water to the boiler of the Distillation Appa-
ratus through a solenoid valve with built-in quantity regulator (0.5 l/ min). The hose connection must be connected to the
domestic water connection for pretreated water with a ½" pressure hose and a lockable water connection (❺, cut-off
valve). Both hose connections must by all means be securedwith hose clips!
Outlet separate water supply ❹ 7.3
Part of an accessory. Only fitted if a separate water supply was ordered.
Connect a ½" hose to the out connectionof the separate watersupply ❹and lead it into a drain, imperatively on
a lower level. It must not be longer than approx. 1.5m. The hose musthave a slope on the complete length, it must be
ensured thatthe water flows off without causing backwater.