Lauda PD 2 User manual

Operating Instructions
PuridestMono Distillation Apparatus
PD 2, PD 4

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LAUDA Puridest Mono Distillation Apparatus models PD 2 and PD 4 produce distillate of good quality with a low conduc-
tivity (approx. 2.3 µS / cm at 25 °C), dependent on quality andcomposition ofthe feed water.
Before installation, please check whether contents of package are in good order and complete.
Should younote any damages or have anyreasons for complaint, please contact your supplier or directly:
LAUDA-GFL Gesellschaft für Labortechnik mbH
Schulze-Delitzsch-Str. 4+5
30938 Burgwedel - Germany
Telefon: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.gfl.de

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Contents
Operating Instructions...................................................................................................................................................................1
1 Use of the Distillation Apparatus..........................................................................................................................................7
Intended Use...................................................................................................................................................................................7 1.1
Improper Use..................................................................................................................................................................................7 1.2
2 Warranty................................................................................................................................................................................7
3 Before Initiation.....................................................................................................................................................................8
4 Set-up and Location of the Distillation Apparatus...............................................................................................................8
5 Operating Voltage.................................................................................................................................................................8
6 Water Connections................................................................................................................................................................9
Tap water inlet (ill. A).....................................................................................................................................................................9 6.1
Cooling water outlet (ill. B)...........................................................................................................................................................9 6.2
Destillate Outlet.............................................................................................................................................................................9 6.3
7 Initiation and Setting of the CoolingWaterTemperature.................................................................................................10
Control Thermometer (ill.C).....................................................................................................................................................10 7.1
Water inlet andSetting the Cooling Water Temperature (ill. D and E).............................................................................10 7.2
Degassing and Distillate Withdrawal (ill. F).............................................................................................................................10 7.3
8 FunctionalDescription.......................................................................................................................................................11
9 Maintenance,Service and Removal of Malfunctions.........................................................................................................11
Descaling........................................................................................................................................................................................11 9.1
Cleaning.........................................................................................................................................................................................12 9.2
Re-Initiation after Low Water....................................................................................................................................................12 9.3
10 Disposal of Old Units..........................................................................................................................................................12
11 TechnicalData....................................................................................................................................................................13
12 Circuit diagram...................................................................................................................................................................14
Circuit diagram PD 2..................................................................................................................................................................14 12.1
Circuit diagram PD 4..................................................................................................................................................................14 12.2
13 Connectionto the mains supply.........................................................................................................................................15
Electrical fuses..............................................................................................................................................................................15 13.1
Examples for connection to the mainssupply.........................................................................................................................16 13.2
14 List of spare parts................................................................................................................................................................ 17
15 Accessories..........................................................................................................................................................................18

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1 Use of the Distillation Apparatus
Intended Use 1.1
In LAUDA Puridest Mono Distillation Apparatus PD 2 andPD 4, an electric heating element serves to boil water and
transform it to steam. The steam is led into the condenser that is placed on the boiler and condenses onthe cooling coil.
The produced distillate drains through a drain tube on the front of the condenser. Depending on the model, the distillate
quantity is 2 litres (PD 2) or 4 litres (PD 4).
Dependingon the tap water quality, the produced distillate has a conductivity of approx. 2.3µS / cm at 25 °C. To feed
the Distillation Apparatus, preferably use tap water of drinking quality. Please also observe the information in chapters 15
of these instructions on the possible use of filters and cartridges to pretreat the tap water.
The 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 perfectoperation of the Distillation Apparatus can be guaranteed. The units may only be installed
and operated by persons who have made themselves familiar with these operating instructions.
Caution:
Both the outer housing ofthe boiler and the steam condenser get strongly heated up during operation.
Both partsmay only be touched after they have cooled down, or when using suitable safety gloves.
Improper Use 1.2
LAUDA Puridest Mono Distillation Apparatus, operated in a laboratory, are no Medical Devices. They fall neither under
national nor international Medical Device Directives and have to be used and applied accordingly. The Distillation Appa-
ratus maynot be used in potentiallyexplosivesurroundings. The Distillation Apparatusmay neither beset up nor operated
in laboratory areas with aggressive or corrosive ambient conditions.
2 Warranty
For all laboratory apparatus and their accessories fromLAUDA-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.

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3 Before Initiation
Important information are marked in boldletters in these instructions, safety indications are additionally marked by the
following warningsymbols 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 Set-up and Location of the Distillation Apparatus
All free openings of the water connections on the right-hand side of the unit are taped close. These
transport protections have to be removed before installation. Place on solid, even and level surfaces
inside buildings only. Make sure to place the unit only on a watertight, temperature-resistant, non-
flammable surface. The location must provide sufficient space as well as the necessary carrying capacity
for the unit (unit weight as per technical data, chapter 11 of this manual, plus weight of the filling. The
unit is not suitable for use in potentially explosive areas.
5 Operating Voltage
The Distillation Apparatus must be connected tothe mains through a correctly installedshock-proof
socket or through an on-site main switch. The Distillation Apparatus is a protection class Ielectrical
appliance, a connection to the earth conductor (PE) must be ensured. For information on the required
mains fuse please view Technical Data 11 of this manual.
The electrical connection must ensure an all-pole separation ofthe Distillation Apparatus from the
mains at any time. The mains connection cable must not touch any hotsurfaces of the unit. It may not
lead underneath the unit. Themain switch of the unit must be off (position O). The voltage on the
nameplate (at the back of the unit) must be identical to the mains voltage. If they are identical, connect
the unit to themains. For further information, please also refer to chapter 13 of these operating in-
structions "Connection to the Mains Supply".

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6 Water Connections
All water connections of the Distillation Apparatus, with theexception ofthe distillate withdrawal at the front, are located
at the right-hand side of the unit. Hoses for water inlet andoutlet are not included in the standard scope of supply.
Tap water inlet (ill. A) 6.1
Water is fed to the Distillation Apparatus through the tap water inlet. Connect a ½" pressure hose between the tap for
cooling water inlet and an on-site manualstop valve of the mains water supply. Make sure to secure both hose connections
with hose clips!
Cooling water outlet (ill. B) 6.2
Connect a ½" temperature-resistant hose witha maximum length of 1.5m to the cooling water outlet. The hose must
lead into a drain on a lower level and must have aslope on its complete length. Make sure the cooling water can drain with-
out back draughts.
Caution:
The cooling water leaves the Distillation Apparatus with a temperature up to 70 °C.
Danger ofscaldings!
Destillate Outlet 6.3
Use a temperature-resistant hose (not depicted)to connect the distillate outlet tube on the frontof the condenser with a
storage tank (to be providedon-site). When choosing the storage tank, observe thespecial storage conditions for distilled
water according to your requirements as well as the high temperature of freshly produced distillate.
Caution:
Distilled water leaves the Distillation Apparatus witha temperature up to 100 °C.
Danger ofscaldings!

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7 Initiation and Setting of the Cooling Water Temperature
Lift the condenser from the boiler (ill.E, upwards arrow)and fill in water until the heatingelement in the boiler is com-
pletely covered by water.
Control Thermometer (ill. C) 7.1
Insert the supplied thermometer into the tubesupporton the right-handof the upper part.
Water inlet and Setting the Cooling Water Temperature (ill. D and E) 7.2
Open the tap of the cooling water supply on the unit completely (handle inthe direction of water flow), and the on-site
stop valve of the mains water supply a little. Check the power supply and switch on the mainswitch. The pilot lamp in the
main switch lights up. As soon as the water in the boiler reaches boilingpoint, regulate the cooling water supply on the tap
of the mains water supply so as to set the temperature of the draining cooling water to approx. 60 °C to 70°C. Thetem-
perature can be checked with the inserted thermometer. The Distillation Apparatus achieves its maximum efficiency witha
cooling water temperature of 60 °Cto 70 °C.
Degassing and Distillate Withdrawal (ill. F) 7.3
Carbon dioxide that forms during the distillation process, is released through a vent in the condenser. Produced distillate is
to be led through a hose (notshown) from the drain tube into a storagetank.