BÜCHI Labortechnik AG
Meierseggstrasse 40
Postfach
CH-9230 Flawil 1
E-Mail: quality@buchi.com
BUCHI reserves the right to make changes to the manual as deemed necessary in the light of experience, especially with respect to structure, illustrations and technical details.
This manual is copyrighted. Information from it may neither be reproduced, distributed, or used for competitive purposes, nor made available to third parties. The manufacture of any component with the aid of
this manual without prior written agreement is also prohibited.
Page 3
BÜCHI Labortechnik AGContents
Contents
1About this document........................................................................................................... 7
2.1Proper use ........................................................................................................................................... 9
2.2Use other than that intended ............................................................................................................... 9
4.3Lifting the instrument ......................................................................................................................... 19
6.4Status bar .......................................................................................................................................... 50
6.5Carrying out freeze-drying ................................................................................................................. 52
6.5.1Preparing the instrument........................................................................................................52
7.4Status bar .......................................................................................................................................... 60
7.5Editing a method................................................................................................................................ 62
7.5.1Creating a new method..........................................................................................................62
7.5.2Changing the name of a method............................................................................................62
7.5.3Setting the sample collapse temperature............................................................................... 62
7.5.4Setting the gas type ............................................................................................................... 63
7.5.5Setting the shelf loading temperature .................................................................................... 63
7.5.6Setting the steps of a method ................................................................................................ 63
7.5.7Setting the phases of a method ............................................................................................. 65
7.6Deleting a method.............................................................................................................................. 67
7.7Setting end point definitions............................................................................................................... 67
12.1.3 Further accessories ...............................................................................................................92
12.1.4 Spare parts ............................................................................................................................93
viOperation Manual Lyovapor
TM
L-200 / L-200 Pro
Page 7
BÜCHI Labortechnik AGAbout this document | 1
1About this document
These operating instructions describe the Lyovapor™ L-200 at the time supplied.
They are an integral part of the product and contain important information that is necessary for safe operation and maintenance.
These operating instructions apply to all variants of the Lyovapor™ L-200.
u To ensure safe and trouble-free operation, read these operating instructions be-
fore starting up the device and follow the guidance they contain.
u Keep the operating instructions somewhere near to the device.
u Pass on the operating instructions to any subsequent owner or user.
BÜCHI Labortechnik AG accepts no liability whatsoever for any faults or damages
that result from the failure to follow these operating instructions.
u If you still have any questions after reading these operating instructions, please
contact BÜCHI Labortechnik AG Customer Service. Contact details for your local
agents can be found on the back cover of these operating instructions or on the Internet at http://www.buchi.com.
1.1Connected devices
In addition to these operating instructions, you should also follow the instructions and
specifications in the documentation for the connected devices.
1.2Warning notices in this document
Warning notices warn you of dangers that can occur when handling the device. There
are four danger levels, each identifiable by the signal word used.
Signal wordMeaning
DANGERIndicates a danger with a high level of risk which could result in
death or serious injury if not prevented.
WARNINGIndicates a danger with a medium level of risk which could result in
death or serious injury if not prevented.
CAUTIONIndicates a danger with a low level of risk which could result in mi-
nor or medium-severity injury if not prevented.
IMPORTANTIndicates a danger that could result in damage to property.
1.3Symbols
The following symbols may be displayed in this instruction manual or on the device:
1.3.1
1.3.2Mandatory directive symbols
SymbolMeaningSymbolMeaning
Wear safety gogglesWear protective clothing
Wear protective glovesHeavy load, do not lift with-
Operation Manual LyovaporTM L-200 / L-200 Pro
out assistance
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1 | About this documentBÜCHI Labortechnik AG
1.3.3Mark-ups and symbols
NOTE
This symbol draws attention to useful and important information.
R This character draws attention to a requirement that must be met before the in-
structions below are carried out.
u This character indicates an instruction that must be carried out by the user.
5 This character indicates the result of a correctly carried out instruction.
Mark-upExplanation
WindowSoftware Windows are marked-up like this.
TabTabs are marked-up like this.
DialogDialogs are marked-up like this.
ButtonButtons are marked-up like this.
Field n am esField names are marked-up like this.
Menu / Me nu itemMenus or menu items are marked-up like this.
StatusStatus is marked-up like this.
SignalSignals are marked-up like this.
1.4Available languages
These operating instructions were originally produced in German and have been
translated into several other languages. The translations are available on the enclosed CD or can be obtained as a PDF file via http://www.buchi.com.
1.5Trademarks
Product names and registered or unregistered trademarks that are used in this instruction manual are used only for identification and remain the property of the owner
in each case.
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Operation Manual LyovaporTM L-200 / L-200 Pro
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BÜCHI Labortechnik AGSafety | 2
2Safety
2.1Proper use
The Lyovapor™ L-200 is used for freeze-drying solid materials in ampoules, vials,
dishes, round-neck or wide-neck flasks and is exclusively intended for that purpose.
The Lyovapor™ L-200 can be used in laboratories for the following tasks:
Sublimating and condensing water
2.2Use other than that intended
Use of any kind other than that described in the section Chapter2.1 "Proper use",
page9 and any application that does not comply with the technical specifications
(see Technical data) constitutes use other than that intended.
In particular, the following applications are not permissible:
Use of the instrument in an environment with a potential risk of explosion or areas
which require explosion-safe apparatus.
Use of the instrument for processing substances outside of research and develop-
ment.
Production and processing of substances that can lead to spontaneous reactions,
such as explosives, metal hydrides or solvents that can form peroxides.
Processing with explosive gas mixtures.
Damage or hazards attributable to use of the product other than as intended are entirely at the risk of the operator alone.
2.3Staff qualification
Unqualified persons are unable to identify risks and are therefore exposed to greater
dangers.
The device may only be operated by suitably qualified laboratory staff.
These operating instructions are aimed at the following target groups:
Users
Users are persons that meet the following criteria:
They have been instructed in the use of the device.
They are familiar with the contents of these operating instructions and the applica-
ble safety regulations and apply them.
They are able on the basis of their training or professional experience to assess
the risks associated with the use of the device.
Operator
The operator (generally the laboratory manager) is responsible for the following aspects:
The device must be correctly installed, commissioned, operated and serviced.
Only suitably qualified staff may be assigned the task of performing the operations
described in these operating instructions.
The staff must comply with the local applicable requirements and regulations for
safe and hazard-conscious working practices.
Safety-related incidents that occur while using the device should be reported to the
manufacturer (quality@buchi.com).
Operation Manual LyovaporTM L-200 / L-200 Pro
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2 | SafetyBÜCHI Labortechnik AG
BUCHI service technicians
Service technicians authorized by BUCHI have attended special training courses and
are authorized by BÜCHI Labortechnik AG to carry out special servicing and repair
measures.
2.4Location of warning signs on the product
The following warning symbols are present on the instrument.
Fig.1: Location of warning signs on the product
General warning
2.5Residual risks
The device has been developed and manufactured using the latest technological advances. Nevertheless, risks to persons, property or the environment can arise if the
device is used incorrectly.
Appropriate warnings in this manual serve to alert the user to these residual dangers.
2.5.1Faults during operation
If a device is damaged, sharp edges or exposed electrical wires can cause injuries.
u Regularly check device for visible damage.
u If faults occur, switch off the device immediately, unplug the power cord and in-
form the operator.
u Do not continue to use devices that are damaged.
2.5.2Damage to the ice condenser
Damage to the ice condenser leads to coolant leakage and failure of the instrument.
u Wait until the ice is completely thawed.
u Do not use mechanical means to remove ice from the ice condenser.
2.5.3Glass and acrylic breakage
Broken glass and acrylic can cause severe cuts.
Damaged glass and acrylic components may implode if subjected to a vacuum.
Minor damage to the ground joints impairs the sealing effect and may therefore diminish sublimination capacity.
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BÜCHI Labortechnik AGSafety | 2
u Handle the flask and other glass and acrylic components carefully and do not drop
them.
u Always place the flasks in a suitable holder when they are not mounted on the Ly-
ovapor™.
u Always visually inspect glass and acrylic components for damage every time they
are to be used.
u Do not continue to use glass and acrylic components that are damaged.
u Always wear protective gloves when disposing of broken glass and acrylic.
2.5.4Low internal pressure
Evacuating the system reduces the pressure in the drying chamber. This reduced
pressure can cause glass and acrylic components to implode.
u Make sure that all glass and acrylic components are free of damage.
2.5.5Cold and hot surfaces
The condenser coil and probes can be extremely cold. Heatable shelf areas can be
extremely hot. If touched, hot and cold surfaces can cause skin burns.
u Do not touch cold or hot surfaces or liquids and/or wear suitable protective gloves.
2.6Personal protective equipment
Depending on the application, hazards due to heat and/or corrosive chemicals may
arise.
u Always wear appropriate personal protective equipment such as safety goggles,
protective clothing and gloves.
u Make sure that the personal protective equipment meets the requirements of the
safety data sheets for all chemicals used.
2.7Modifications
Unauthorized modifications may impair safety and lead to accidents.
u Use only genuine BUCHI accessories, spare parts and consumables.
u Technical modifications to the device or accessories should only be carried out
with the prior written approval of BÜCHI Labortechnik AG and only by authorized
BUCHI technicians.
BUCHI accepts no liability whatsoever for damage arising as a result of unauthorized
modifications.
Operation Manual LyovaporTM L-200 / L-200 Pro
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3 | Product descriptionBÜCHI Labortechnik AG
3Product description
3.1Description of function
The Lyovapor™ is a freeze-dryer in which frozen preparations can be gently dried.
The basis of freeze-drying is sublimation. Sublimation refers to the process whereby a
substance transforms directly from the solid to the gaseous state.
The physical process of sublimation can be explained using the solvent water as an
example.
The water is frozen.
The frozen water is transformed into the gaseous state under vacuum at a pres-
sure below the triple point.
The vacuum prevents the ice melting when heat is applied to the preparation.
Thus, freeze-drying takes place in three phases:
1. Freezing phase: the preparation is frozen at atmospheric pressure.
2. Main drying phase: heat is applied to the frozen preparation under a vacuum.
The frozen water is removed by sublimation.
3. Secondary drying phase (only possible with heatable shelves): the trace levels of water remaining are removed by heating.
The Lyovapor™ consists of an ice condenser and various top-mount drying racks.
The top-mount drying racks can be chosen to suit the availability of the preparation
being dried and the requirements of the end product.
The following top-mount drying racks can be used:
Non-heatable and heatable shelves in rack
Trays in rack
Top-mount rack with manifold valves
3.1.1Freezing phase
In the freezing phase, the aqueous preparation is transformed to a solid state. Freezing takes place under atmospheric pressure using a separate freezer, a liquid nitrogen bath, or a mixture of dry ice and alcohol.
The end of the freezing phase is reached as soon as the water contained in the
preparation has fully crystallized.
3.1.2Main drying phase
In the main drying phase, the ice crystals are removed from the preparation by sublimation. Sublimation in the Lyovapor™ takes place under a vacuum with the addition
of thermal energy.
To create the vaccum, the pressure is lowered to the level required for sublimation.
For water that is: less than 6.11mbar.
As the ice condenser is colder than the preparation being dried, the vapour pressure
in the area of the ice condenser is lower than in the area of the preparation. The water vapour escaping from the preparation therefore flows towards the ice condenser.
The water vapour condenses on the coil of the ice condenser.
If a manifold-valve rack is used, heat transfer takes place by convection and radiation
from the surroundings. Control of the thermal energy transferred is then difficult.
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BÜCHI Labortechnik AGProduct description | 3
If using a drying chamber with heatable shelves, heat transfer takes place by direct
contact. The temperature of the heatable shelves is controllable. Control of the thermal energy transferred is then possible.
Controlling the heat transfer prevents the following critical temperatures for amorphous and crystalline materials to be reached:
the glass transition temperature Tg' of the frozen preparation
the collapse temperature Tc.
the eutectic temperature Teu.
Above the glass transition temperature and the collapse temperature, the viscosity of
the frozen preparation increases. The increased viscosity leads to the collapse of the
preparation's matrix structure.
Above the eutectic temperature, the preparation melts.
During the main drying phase, the product temperature must remain below the collapse temperature for amorphous materials in the preparation.
Sublimation of the ice crystals progresses downwards from the surface of the product.
Above the sublimation boundary, the product is dry ("freeze-dried cake"), while further
inside the product is still frozen.
The end of the main drying phase is reached when all ice crystals have been removed from the preparation.
After the main drying phase, the remaining fluid content in the preparation can still be
between 5 to 10%.
3.1.3Secondary-drying phase
In the secondary-drying phase, the unfrozen water is removed from the preparation
by desorption. The secondary-drying function is performed by the heatable shelves in
the drying chamber of the Lyovapor™.
In the secondary-drying phase, the temperature of the heatable shelves is raised and
held for several hours.
The end of the secondary-drying phase is reached when the residual moisture in the
preparation is between 1% and 5%.
Type xxx
SN xxxxxxxx
Volt xxx-xxx VAC
Freq xx Hz
Power xxxx W
Built 20xx
Designed by BUCHI in Switzerland
Made in India
6
5
4
1
3
2
7
8
9
10
9
3.2.5Pro control panel
Fig.6: Pro control panel
1 Touch-screen display2 Navigation control
3.3Type plate
The type plate identifies the instrument. The type plate is located at the rear of the instrument.
Fig.7: Type Plate
1 Company name and address2 Instrument name
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3.4Refrigerant Specification
3 Serial number4 Input voltage range
5 Frequency6 Power consumption maximum
7 Year of manufacture8 Product code
9 Approvals10 Symbol for "Do not dispose of as
household waste"
The refrigerant details are at the back of the instrument.
TM
L-200 / L-200 Pro
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BÜCHI Labortechnik AGProduct description | 3
L-xxx xxHz
Cooling System Refrigerant: Rxxx
Filling: xxx g
Global Warming Potential (GWP): xx tCO
2
High Side design pressure: xxx
Low Side design pressure: xxx
Maximum relative humidity80% for temperatures up to 30 °C
Storage temperaturemax. 45 °C
3.6.3Materials
ComponentMaterial of construction
Lyovapor™ housingSteel 1.4301/304 with powder coating
Vacuum chamber and componentsSteel 1.4301/304
Main connectorPE-UHMW 1000
Drying chamber tube and coverPMMA GS
SealsLow-temperature silicon
Manifold drying rackSteel 1.4301/304
Manifold valvesNatural rubber, PP
Cooling medium circuitCopper for freezing applications to EN
Vacuum clipsAluminium
Condensate drain tubeSilicone
Condensate drain, ventilation and control
valve
Main valveAluminium with FKM seal
No maximum performance above 25 °C
12735-1
Brass with EPDM seal
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BÜCHI Labortechnik AGTransport and storage | 4
4Transport and storage
4.1Transport
IMPORTANT
Risk of breakage due to incorrect transportation
Make sure that the instrument is fully dismantled.
Pack every instrument components properly to prevent breakage. Use the original
packaging whenever possible.
Avoid sharp movements during transit.
u After transporting, check the instrument and all glass components for damage.
u Damage that has occurred in transit should be reported to the carrier.
u Keep packaging for future transportation.
4.2Storage
u Make sure that the ambient conditions are complied with (see Technical data).
u Wherever possible, store the device in its original packaging.
u After storage, check the device, all glass components, seals and tubing for dam-
age and replace if necessary.
4.3Lifting the instrument
WARNING
Danger due to incorrect transportation
The possible consequences are crushing injuries, cuts and breakages.
u The instrument should be transported by four persons at the same time.
u Lift the instrument at the points indicated.
1 Instrument2 Feet
3 Equipment trolley4 Castor brakes on trolley
Precondition:
R Make sure that the castor brakes on the equipment trolley are locked on.
u Lift the instrument – this requires four persons each lifting at one of the points indi-
cated on the front and rear of the instrument.
u Set the instrument down on the equipment trolley.
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5Installation
5.1Installation site
IMPORTANT
Instrument damaged if switched on too early.
After transporting, wait twelve hours before switching on the instrument. The fluid in
the cooling system requires twelve hours to collect in the refrigerant compressor.
The installation site must meet the following requirements:
Firm, level surface
Minimum space requirement: 520 mm x 645 mm x 510 mm (W x D x H).
Take into account the maximum product dimensions and weight.
Take into account the 1100 mm operating height of the drying attachments.
Clearance on each side of the instrument must be at least 30 cm. This clearance
ensures air circulation and prevents the instrument from overheating.
Do not place loose papers or cloths below or to the sides of the instrument, as
these could impede the air circulation if drawn in.
Operate the instrument at an ambient temperature of +15°C to +30°C.
Do not expose the instrument to any external thermal loads, such as direct solar
radiation.
When installing the instrument, make sure that the feet do not bend.
When mounting on an instrument cart, place the feet of the instrument into the sup-
ports on the instrument cart.
NOTE
Make sure that the power supply can be interrupted at any time during an emergency.
5.2Securing against earthquakes
The Lyovapor™ L-200 has an earthquake fixing point to protect the device against
falling.
u Tie the lashing mount to a fixed point using strong cord or a wire.
5.3Putting the instrument in operation
IMPORTANT
Instrument damaged if restarted too early
Wait ten minutes before restarting the instrument. The oil in the refrigerant compressor requires ten minutes to return to the collection tank.
5.3.1Preparing the instrument
u Clean the instrument with a damp cloth before commissioning.
u Check all sealing surfaces for scratches, dust, and cleanliness.
5.3.2Establishing electrical connections
NOTE
Observe the regulatory provisions when connecting the Lyovapor™ to power supply.
4 Use external main switches (e.g., emergency off) in accordance with the stan-
dards IEC 60947-1 and IEC 60947-3.
4 Use additional electrical safety features (e.g., residual-current circuit breakers) to
comply with local laws and regulations.
The power supply must fulfill the following conditions:
1. Provide the mains voltage and frequency specified on the type plate of the instrument.
2. Be designed for the load imposed by the instruments connected.
3. Be equipped with suitable fuses and electrical safety features.
4. Be equipped with a proper grounding.
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IMPORTANT
Risk of property damage and diminished performance due to use of unsuitable power cables.
The power supply cables supplied with the product by BUCHI precisely match the requirements of the device. If other power cables that do not meet those requirements
are used, the device may be damaged and/or its performance diminished.
u Use only the power supply cables supplied with the product or ordered separately
from BUCHI.
u If using any other power supply cables, make sure that they match the specifica-
tions on the type plate.
u Make sure that all connected devices are grounded.
u If an extension lead is required, make sure that it is earthed and has a suitable
power rating.
u Make sure that the power plug is freely accessible at all times.
u Insert the power cable into the connection labeled Power IN on the back of the in-
u Switch the On/Off master switch to Off.
u Fit the main valve (6) with the arrow (4) pointing in the direction of flow (towards
the vacuum pump) and seal (2) onto the cross-pipe (3) and fix it with the clamp
(1).
u Fit the vacuum tubing (5) and seal (2) onto the main valve outlet and fix it with the
clamp (1).
u Plug the main valve electrical connector into the socket marked Main Valve.
NOTE
The vacuum pump can also be connected directly to the Lyovapor™. If the vacuum
pump is connected directly to the Lyovapor™, the vacuum cannot be regulated.
Manual switch on the main valve
Use the main valve manual switch to set the vacuum control mode.
u Switch the On/Off master switch to Off.
u Remove the shipping cap from the connection (4).
u Fit the pressure sensor (1) and seal (3) to the connection (4) and fix with the
clamp (2).
u Plug the pressure sensor electrical connection into the socket marked Internal
Vacuum Sensor.
u Select the sensor from the submenu [Settin gs ] on the control panel.
u Switch the On/Off master switch to Off.
u Fit the cross-pipe and 90° elbow. See Chapter5.3.3 "Assembling the cross fitting
(optional accessory)", page24
u Fit the venting valve (4) and seal (2) to the 90° elbow (1) and fix with the clamp
(3).
u Plug the venting valve electrical connection (4) into the socket marked Aeration
Valve.
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5.3.7Assembling the pressure regulating valve (optional accessory)
The pressure regulating valve provides additional pressure regulating capability during the freeze-drying process. It regulates the vacuum by the introduction of external
air.
u Switch the On/Off master switch to Off.
u Remove the blanking cap from the connection (1).
u Connect the pressure sensor to the connection (1).
u Plug the pressure sensor connecting lead into the socket marked External Vac-
uum Sensor (2).
u Select the sensor from the submenu [Settin gs ] on the control panel.
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5.3.9Preparing the condensate drain hose
CAUTION
Risk of scalding by hot water
u Make sure the condensate drain hose is not loose.
IMPORTANT
Contamination of the device
Escaping condensate can contaminate the instrument.
u Fit the condensate drain hose with a downward slope. Make sure that the drain
hose is not immersed in the condensate.
u Seal the condensate drain hose with the end plug as soon as cleaning of the in-
strument is completed.
Fig.18: Condensate drain hose
1 Rubber ring2 Condensate drain hose
3 End plug
The condensate drain hose is on the side of the instrument. The drain hose is sealed
with an end plug. The condensation is drained off through this drain hose after completion of the freeze-drying process.
u Pull the drain hose (2) together with end plug (3) out of the side panel of the instru-
ment.
u Remove the end plug.
u Direct the drain hose into a waste outlet or place a container underneath it.
The vacuum pump evacuates the top-mount drying rack during the freeze-drying
process.
NOTE
To increase the service life of the vacuum pump, operate the vacuum pump with an
open gas ballast valve.
NOTE
Prepare the vacuum pump according to the manufacturer's instructions. See relevant
documentation.
Fig.19: Connections for vacuum pump
1 Vacuum pump connection2 Vacuum tube connection,
ISO-KF 25
u Switch the On/Off master switch to Off.
u Connect the vacuum pump vacuum tube to the vacuum tube connection (2).
u Plug the vacuum pump electrical connection into the socket marked Vacuum
Pump.
5.5Assembling the drying attachments
A top-mount drying rack completes the ice condenser, turning it into a ready-to-use
freeze-dryer.
5.5.1Fitting the 300 mm dia. O-ring
Do not use any sharp objects when fitting the top-mount drying racks.
Before fitting the top-mount drying racks, fit the 300mm O-ring over the ice condenser.
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Fig.20: Fitting the 300mm dia. O-ring
1 Groove above ice condenser2 O-ring, dia. 300mm
u Make sure that the groove above the ice condenser (1) is clean, free of dust and
not scratched.
u Check the 300mm dia. O-ring (2) for damage and grease it with vacuum grease.
u Place the 300mm dia. O-ring (2) in the groove above the ice condenser (1).
5.5.2Fitting the acrylic drying chamber
The instrument can be completed with the acrylic drying chamber.
Precondition:
R The 300 mm O-ring is fitted in the groove above the ice condenser.
u Remove all parts of the drying chamber from the packaging and check for dam-
age.
u Place the intermediate plate (4) on the ice condenser (5).
u Place the rack (6) on the intermediate plate (4).
u Locate the cylinder (3) in the groove above the ice condenser (5).
u Check the 300mm dia. O-ring (2) for damage and grease it with vacuum grease.
u Place the 300mm dia. O-ring (2) in the groove in the lid.
u Place the lid (1) on the cylinder (3).
5.5.3Fitting the manifold acrylic drying chamber
The instrument can be completed with the manifold acrylic drying chamber.
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Fig.22: Fitting the manifold acrylic drying chamber
Precondition:
R The 300 mm O-ring is fitted in the groove above the ice condenser.
u Remove all parts of the drying chamber from the packaging and check for dam-
age.
u Fit the manifold valves to the lid. See Chapter5.5.8 "Assembling manifold valves",
page42.
u Place the intermediate plate (4) on the ice condenser (5).
u Place the rack (6) on the intermediate plate (4).
u Locate the cylinder (3) in the groove above the ice condenser (5).
u Check the 300mm dia. O-ring (2) for damage and grease it with vacuum grease.
u Place the 300mm dia. O-ring (2) in the groove in the lid.
u Place the lid (1) on the cylinder (3).
5.5.4Fitting the stopper acrylic drying chamber
The instrument can be completed with the stopper acrylic drying chamber.
Precondition:
R The 300 mm O-ring is fitted in the groove above the ice condenser.
u Remove all parts of the drying chamber from the packaging and check for dam-
age.
u Locate the springs (5) in the holes on the ice condenser (6).
u Place the intermediate plate (7) on the springs (5).
u Place the rack (8) on the intermediate plate (7).
u Locate the cylinder (4) in the groove above the ice condenser (5).
u Screw the hand wheel (1) upwards until the plate inside the lid has pressed the
hooks (9) all the way in.
u Check the 300mm dia. O-ring (3) for damage and grease it with vacuum grease.
u Place the 300mm dia. O-ring (3) in the groove in the lid (2).
u Place the lid (2) on the cylinder (4).
5.5.5Assembling the manifold drying rack
The instrument can be completed with a manifold drying rack.
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The manifold drying rack enables freeze-drying of samples in flasks. The manifold
drying rack is a modular, expandable design.
Precondition:
R The 300 mm O-ring is fitted in the groove above the ice condenser.
u Remove all parts of the manifold drying rack from the packaging and check for
damage.
u Fit the manifold valves (1). See Chapter5.5.8 "Assembling manifold valves",
page42.
u Place the base plate (3) on the ice condenser.
u Place the seal (4) on the connection (6).
u Fit the manifold drying rack (2) onto the seal and fix it with the clamp (5).
5.5.6Fitting the non-heatable shelf
Shelves can be fitted in the drying chambers. The shelves allow the freeze-drying of
samples in vials or as loose samples. The shelves slide into a rack inside the drying
chamber.
1 Rack2 Slot for shelf
3 Stop4 Connections for shelves
5 Non-heatable shelf6 Lug
Precondition:
R The rack is mounted on top of the ice condenser.
u Slide the shelf (5) into a slot (2) in the rack (1).
u Make sure that the shelf (5) is secured by the lug (6).
u Fit the cylinder and the lid.
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2
5.5.7Fitting heatable shelves
Shelves can be fitted in the drying chambers. The shelves allow the freeze-drying of
samples in vials or as loose samples. The shelves slide into a rack inside the drying
chamber.
Fig.27: Heatable shelf
1 Heatable shelf2 Connection for temperature sensor
3 Electrical connector for heatable
shelves
Heatable shelves with controlled temperature.
◦ The heatable shelves are connected to the instrument by a connecting lead.
◦ As an additional option, a temperature sensor for monitoring the product temper-
ature can be connected to the temperature sensor connection.
1 Rack2 Slot for shelf
3 Temperature sensor (option)4 Stop
5 Connections for shelves6 Electrical connector for heatable shelf
7 Heatable shelf8 Lug
Precondition:
R The rack is mounted on top of the ice condenser.
u Slide the shelf (7) into a shelf slot (2) in the rack (1).
u Make sure that the shelf (7) is secured by the lug (8).
u Plug the connecting lead (6) into one of the supply sockets (5).
u Fit the cylinder and the lid.
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2
3
1
2
3
1
Plugging in the heatable shelf connector
Fig.29: Plugging in heatable shelf
1 Electrical connector for heatable shelf 2 Connections for shelves
3 Ring
Precondition:
R The shelf is slotted into the rack.
u Push the electrical connector (1) onto one of the shelf connections (2) while simul-
taneously twisting the ring (3) anti-clockwise.
The shelf is connected.
Unplugging the heatable shelf connector
Fig.30: Unplugging heatable shelves
1 Electrical connector for heatable shelf 2 Connections for shelves
3 Ring
u Press the electrical connector (1) into the shelf connection (2) while simultane-
u Fit the evacuation adaptor (3) onto the lever (2).
u Fit the vacuum tube (5) onto the evacuation adaptor (3).
u Fix the vacuum tube with the tube clip (4).
u Connect a vacuum to the vacuum tube (5).
u Connect a vessel to the manifold valve.
u Turn the lever (2) downwards.
The vessel is evacuated.
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32
1
6
5
6Operating the control panel
This section describes the operation of the instrument using the control panel.
CAUTION
Risk of injury from glass splinters
Sharp objects can damage the display.
u Keep sharp objects away from the display.
6.1Layout of the control panel
Fig.35: Layout of the control panel
No.DescriptionFunction
1Status barShows the current status of the instrument.
2Menu barShows symbols representing the menus.
3Content areaShows current settings, submenus or actions
4Function barShows functions that can be performed ac-
5Navigation controlUsed for navigating the user interface.
6Function buttonsPressing a function button performs the as-
6.2Function bar
The function bar shows available functions according to the current operation.
The functions on the function bar are executed by tapping the relevant function buttons or pressing the navigation control.
depending on current operation.
cording to the current operation.
Pressing the control performs the assigned
function on the function bar.
6 | Operating the control panelBÜCHI Labortechnik AG
6.5Carrying out freeze-drying
6.5.1Preparing the instrument
Time
re-
approx.
30min
quired:
NOTE
The conditioning phase can be skipped by tapping [Skip] on the function bar.
Navigation path
➔ Start
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Start co ndition in g] on the function bar.
The temperature in the ice condenser decreases to operating temperature.
The vacuum pump is brought up to operating temperature.
After completion of the conditioning phase, the status bar shows the status Un-
load / Load.
6.5.2Starting freeze-drying
CAUTION
Risk of skin burns from touching parts of the ice condenser after completion of conditioning.
u Wear protective gloves when working on the instrument after the conditioning
phase.
Navigation path
➔ Start
Precondition:
R The instrument has been prepared.
u Fit a top-mount drying rack. See Chapter5.5 "Assembling the drying attachments",
page32.
u Load the top-mount drying rack with frozen preparations.
u Navigate to the [Start] menu via the navigation path.
u Enter the required settings for the process parameters.
u Tap the function [Start] on the function bar.
The freeze-drying process starts.
The control panel shows the [Start] menu with a black background.
The status bar shows a clock counting up and the status Manual Drying.
The system evacuates to the set pressure.
6.5.3Editing parameters while the process is running
Navigation path
➔ Start
Precondition:
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R The freeze-drying process has been started.
u Navigate to the [Start] menu via the navigation path.
u Navigate to the desired parameter using the navigation control.
u Tap the function [Edit] on the function bar.
The control panel highlights the selected parameter in white.
u Turn the navigation control to increase or decrease the parameter setting.
u Tap the function [Save] on the function bar.
The setting is saved.
6.5.4Ending freeze-drying
Navigation path
➔ Start
Precondition:
R The sample is dry.
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Aerate ] on the function bar.
u Answer YES to the confirmation question.
The system is vented.
The status bar shows the status Aerating.
u As soon as the status bar shows the status Unload / Load, remove the dried sam-
ple from the drying rack.
6.5.5Shutting down the instrument
Time
40min
required:
IMPORTANT
Do not use force to remove the ice from the ice condenser.
Navigation path
➔ Start
Precondition:
R The freeze-drying process has ended.
u Position the condensate drain hose so that the condensate can be drained off.
See Chapter5.3.9 "Preparing the condensate drain hose", page31
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Shut d ow n] on the function bar.
The instrument shuts down.
The status bar shows the remaining time and the status Shutting down.
After the instrument has shut down, the status bar shows the remaining time and
7 | Operating Pro control panelBÜCHI Labortechnik AG
ActionOptionExplanation
[L-200]ViewThe following information on the
L-200 is available:
Serial number
Firmware version
Hours of duty
Status
PCB Temperature
48V power supply
24V power supply
5V power supply
3.3V power supply
[Networ k diagnostics ]
View/Enter settingsThe following network diagnosis in-
formation is available:
Network interruptions
Event list
7.3.5Messages menu
The [Messag es ] menu shows the current instrument messages and the instrument's
message history.
The following message types are possible:
I = Information
W = Warning
E = Error
Submenu Notifications
The submenu [Notifi ca tions] shows the currently pending messages.
List of pending messages.
The lists contains only unconfirmed messages together with date and time.
Submenu Logbook
The submenu [Logboo k] shows the instrument's message history.
Logbook:
List of the last 30 messages.
Every occurrence is shown with date and time.
The following status types are possible:
x = Confirmed
< = Sent
> = Received
7.4Status bar
The status bar shows the status of the instrument.
The following statuses are possible:
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Indication on status bar
ViewStatus
Unload / LoadBefore the freeze-drying process:
Load the top-mount drying rack with a frozen
sample.
After the freeze-drying process:
Remove the dried sample from the top-mount
drying rack.
AeratingThe system is venting.
Shutting downThe instrument is shutting down.
DefrostingThe instrument is defrosting.
StandbyThe instrument is in energy-saving mode.
ConditioningThe instrument is starting up.
Warming up pumpThe vacuum pump is being brought up to operat-
ing temperature.
Vacuum TestThe instrument is performing a vacuum test.
Leak TestThe instrument is performing a leak test.
Manual DryingThe instrument is in the course of a manual
freeze-drying process.
RecoveringThe system is in the process of recovering from a
power failure.
The current parameters of the freeze-drying
process are being re-established.
HoldThe instrument is in the holding phase.
Primary dryingThe instrument is in the primary drying phase.
Secondary dryingThe instrument is in the secondary drying phase.
Tempering shelvesThe instrument is modulating the heatable
shelves to the set temperature.
Symbols on the status bar
SymbolStatus
The instrument is defrosting.
The instrument is in energy-saving mode.
The instrument is in the course of a freeze-drying
process using a method.
The instrument is starting up.
The instrument is in the course of a manual
freeze-drying process.
7 | Operating Pro control panelBÜCHI Labortechnik AG
u Tap the action [Steps] .
The control panel shows the action Steps.
The following settings are available for each step:
SettingOptionMeaning
[Step p ha se]Primary drying/Sec-
Sets the type of step phase.
ondary drying
[Durati on ]Enter valueSets the duration of the step.
[Drying s helf temperatur e]
Enter valueSets the temperature of the
heatable shelves for the duration of the step in minutes.
[Pressu re range]Regulated/MinimumRegulated: the settings for pres-
sure and pressure limits are applied.
Minimum: the maximum vacuum
is applied to reach the lowest
possible pressure.
[Pressu re ]Enter valueSets a target level for the regu-
lated pressure.
[Pressu re limit]Enter valueAbsolute value for divergence
from the set pressure before the
sample protection function is activated.
[Pressu re duration ]Enter valueSets the period of time that the
pressure is allowed to exceed
the pressure limit before the
sample protection function is activated.
Editing a step
u Use the function [Right] or [L eft] on the function bar to navigate to the step that
you wish to edit.
u Using the navigation control, navigate to the setting that you wish to change.
u Tap the function [Edit] on the function bar.
u Edit the setting as required.
u Tap the function [Save] on the function bar.
The setting is changed.
Adding a step
u Use the function [Right] or [L eft] on the function bar to navigate to the position at
which you wish to add a step after the position.
u Tap the function [New] on the function bar.
The new step is created.
Deleting a step
u Use the function [Right] or [L eft] on the function bar to navigate to the step that
you wish to delete.
u Tap the function [Delete ] on the function bar.
u Select [OK] to confirm the action in response to the confirmation question.
The step is deleted.
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7.5.7Setting the phases of a method
NOTE
The settings in the Phase view affect all steps of a phase.
Navigation path
➔ Method
u Navigate to the [Method ] menu via the navigation path.
u Tap the name of the method that you wish to edit.
The control panel highlights the selected method in green.
u Tap the action [Phase] .
The control panel shows the Phase view.
The following phases of a method are available:
PhaseSettingOptionMeaning
[Primar y
drying]
[Pressu re
action]
[Temp. ac tion]
[Safety t emperatur e]
[Sample p rotection t ime]
[End po in t
definit io n]
None/Sample
protection/
Message
None: no action is carried out.
Sample protection: if the pressure is
too high, heating of the shelves is
paused.
Message: if the pressure is too high,
the control panel displays a message.
None/Sample
protection/
Message
None: no action is carried out.
Sample protection: if the temperature is too high, heating of the
shelves is paused.
Message: if the temperature is too
high, the control panel displays a
message.
Entry of valueMaximum divergence from the set
collapse temperature before the
sample protection function is activated.
Entry of valueDuration of sample protection status
7 | Operating Pro control panelBÜCHI Labortechnik AG
PhaseSettingOptionMeaning
[Secondary
drying]
[Pressu re
action]
None/Sample
protection/
Message
None: no action is carried out.
Sample protection: if the pressure is
too high, heating of the shelves is
paused.
Message: if the pressure is too high,
the control panel displays a message.
[Temp. ac tion]
None/Sample
protection/
Message
None: no action is carried out.
Sample protection: if the temperature is too high, heating of the
shelves is paused.
Message: if the temperature is too
high, the control panel displays a
message.
[Safety t emperatur e]
Entry of valueMaximum divergence from the set
collapse temperature before the
sample protection function is activated.
[Sample p ro-
Entry of valueDuration of sample protection status.
tection t ime]
[Stoppe ring]
[End po in t
definit io n]
[Pressu re
range]
More settingsSee Chapter7.7 "Setting end point
definitions", page67
Regulated/Minimum
Regulated: the settings for pressure
and pressure limits are applied.
Minimum: the lowest possible vacuum pressure is applied.
[Pressu re ]Entry of valueSets a target value for the regulated
pressure.
[Mode]None/ManualNone: no action is carried out.
Manual: sealing is performed manually.
[Hold][Pressu re
range]
Regulated/Minimum
Regulated: the settings for pressure
are applied.
Minimum: the lowest possible vacuum pressure is applied.
[Pressu re ]Entry of valueSets a level for the regulated pres-
sure.
[Shelf te mperatur e]
Entry of valueSpecifies a temperature for the
shelves.
Editing the settings for a phase
u Tap the phase that you wish to edit.
The control panel highlights the selected phase in green.
u Tap the setting that you wish to edit.
u Edit the setting as required.
u Tap the function [Save] on the function bar.
The setting is changed.
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7.6Deleting a method
Navigation path
➔ Method
u Navigate to the [Method ] menu via the navigation path.
u Tap the name of the method that you wish to edit.
The control panel highlights the selected method in green.
u Tap the function [Delete ] on the function bar.
u Select [Confir m] to confirm the action in response to the confirmation question.
The method is deleted.
7.7Setting end point definitions
The end of a phase can be automatically set for each preparation by defining an end
point.
The end point can be defined by means of the temperature difference test or the pressure difference test.
7.7.1Pressure difference test
The pressure difference test establishes the difference between the readings from
two pressure sensors in the drying chamber. If the difference between the two sensor
readings is below a threshold, the freeze-drying phase can be ended.
Navigation path
➔ Method
Precondition:
R The pressure sensor PPG010 has been installed. See Chapter5.3.5 "Assembling
R A capacitive pressure sensor (Inficon Porter CDG020D) is connected.
u Place the alternative pressure sensor in the drying chamber.
u Navigate to the [Method ] menu via the navigation path.
u Tap the name of the method that you wish to edit.
The control panel highlights the selected method in green.
u Tap the action [Phase] .
The control panel shows the action Phase.
u Tap the setting [End po in t defin it io n].
The control panel shows the setting End point definition.
u Tap [Pressu re differ en ce test].
The control panel shows the pressure difference test.
The following settings are available:
SettingOptionExplanation
[Pressu re
differe nc e
Yes/NoSwitches the pressure differ-
ence test on or off.
test]
[Start ti me]Entry of valueSets the time from which the
pressure difference test is to be
performed. The figure relates to
the time before completion of
the primary drying phase.
7 | Operating Pro control panelBÜCHI Labortechnik AG
SettingOptionExplanation
[Pressu re
differe nc e
limit]
Entry of valueSpecifies the difference between
the two sensor readings below
which the end point is reached.
[Durati on ]Entry of valueSpecifies the length of time for
which the pressure difference
test is to be carried out.
[Contin ue ]Yes/NoYes: the method switches to the
next phase.
No: the phase is ended when
the set levels are reached.
[Messag e]Yes/NoThe control panel shows or does
not show a message as soon as
the pressure difference test is
passed.
7.7.2Temperature difference test
NOTE
The temperature test is successfully completed if all drying shelves are below the
threshold.
The samples on a drying shelf have different drying times. Take account of the different drying times in the [Durati on ] setting.
The temperature difference test establishes the difference between the readings from
temperature sensor for the heatable shelf and the temperature sensor in the sample.
If the difference between the two sensor readings is below a threshold, the freezedrying phase can be ended.
Navigation path
➔ Method
Precondition:
R The heatable shelves are fitted in the rack. See Chapter5.5.7 "Fitting heatable
shelves", page39.
R The optional temperature sensor has been installed. See Chapter5.5.7 "Fitting
heatable shelves", page39.
u Place the optional temperature sensor in the sample.
u Navigate to the [Method ] menu via the navigation path.
u Tap the name of the method that you wish to edit.
The control panel highlights the selected method in green.
u Tap the action [Phase] .
The control panel shows the action Phase.
u Tap the setting [End po in t defin it io n].
The control panel shows the setting End point definition.
u Tap [Temper at ure dif fe re nce tes t] .
The control panel shows the temperature difference test.
The following settings are available:
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SettingOptionExplanation
[Temper ature di ff er-
Yes/NoSwitches the temperature differ-
ence test on or off.
ence te st ]
[Start ti me]Enter settingSets the time from which the
temperature difference test is to
be performed. The value relates
to the time before completion of
the primary drying phase.
[Temper ature di ff erence li mi t]
Enter settingSpecifies the difference between
the two sensor readings below
which the end point is reached.
[Durati on ]Enter settingThe period of time during which
the difference is not to be exceeded. If the threshold is not
exceeded for the full period of
time, the temperature difference
test is passed.
[Contin ue ]Yes/NoYes: the method switches to the
next phase.
No: the phase is ended when
the set levels are reached.
[Messag e]Yes/NoThe control panel shows or does
not show a message as soon as
the temperature difference test
is passed.
7.8Performing freeze-drying using a method [Pro control panel]
7.8.1Preparing the instrument
Time
required:
NOTE
The conditioning phase can be skipped by tapping [Skip] on the function bar.
Navigation path
➔ Start
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Start co ndition in g] on the function bar.
7.8.2Selecting a method
Navigation path
➔ Method
approx.
30min
The temperature in the ice condenser decreases to operating temperature.
The vacuum pump is brought up to operating temperature.
After completion of the conditioning phase, the status bar shows the status Un-
7 | Operating Pro control panelBÜCHI Labortechnik AG
u Navigate to the [Method ] menu via the navigation path.
u Tap the function [Method ] on the function bar.
u Tap the method that you wish to use.
u Tap the function [Activa te ] on the function bar.
The status bar shows the method activated.
7.8.3Starting freeze-drying
CAUTION
Risk of skin burns from touching parts of the ice condenser after completion of conditioning.
u Wear protective gloves when working on the instrument after the conditioning
phase.
NOTE
The freeze-drying process can be cancelled by tapping the functions [Manual ] and
[Aerate ] on the [ Start] menu.
Navigation path
➔ Start
If a gas is being used
Precondition:
R The instrument has been prepared.
R A method is selected.
u Fit a top-mount drying rack. See Chapter5.5 "Assembling the drying attachments",
page32.
u Load the top-mount drying rack with frozen samples.
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Start] on the function bar.
u Make sure that the specified gas is being used.
u Answer YES to the confirmation question.
The freeze-drying process starts.
The control panel shows the [Start] menu with a black background.
The system carries out the selected method.
If a gas is not being used
Precondition:
R The instrument has been prepared.
R A method is selected.
u Fit a top-mount drying rack. See Chapter5.5 "Assembling the drying attachments",
page32.
u Load the top-mount drying rack with frozen samples.
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Start] on the function bar.
The freeze-drying process starts.
The control panel shows the [Start] menu with a black background.
The system carries out the selected method.
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7.8.4Ending freeze-drying
Navigation path
➔ Start
Precondition:
R The status bar is showing the status Hold.
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Aerate ] on the function bar.
u Answer YES to the confirmation question.
The system is vented.
The status bar shows the status Aerating.
u Wait until the status bar shows the status Unload / Load.
u Remove the dried preparation from the top-mount drying rack.
7.8.5Shutting down the instrument
Time
40min
required:
IMPORTANT
Do not use force to remove the ice from the ice condenser.
Navigation path
➔ Start
Precondition:
R The freeze-drying process has ended.
u Position the condensate drain hose so that the condensate can be drained off.
See Chapter5.3.9 "Preparing the condensate drain hose", page31
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Shut d ow n] on the function bar.
The instrument shuts down.
The status bar shows the remaining time and the status Shutting down.
After the instrument has shut down, the status bar shows the remaining time and
the status Defrosting.
7.9Performing freeze-drying manually [Pro control panel]
7.9.1Preparing the instrument
Time
required:
NOTE
The conditioning phase can be skipped by tapping [Skip] on the function bar.
7 | Operating Pro control panelBÜCHI Labortechnik AG
Navigation path
➔ Start
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Start co ndition in g] on the function bar.
The temperature in the ice condenser decreases to operating temperature.
The vacuum pump is brought up to operating temperature.
After completion of the conditioning phase, the status bar shows the status Un-
load / Load.
7.9.2Starting freeze-drying
CAUTION
Risk of skin burns from touching parts of the ice condenser after completion of conditioning.
u Wear protective gloves when working on the instrument after the conditioning
phase.
Navigation path
➔ Start
Precondition:
R The instrument is prepared.
u Fit a top-mount drying rack. See Chapter5.5 "Assembling the drying attachments",
page32.
u Load the top-mount drying rack with frozen preparations.
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Manual ] on the function bar.
u Enter the required settings for the process parameters.
u Tap the function [Start] on the function bar.
The freeze-drying process starts.
The background colour of the [Start] menu changes from white to black.
The status bar shows a clock counting up and the status Manual Drying.
The system evacuates to the set pressure.
7.9.3Editing parameters while the process is running
Navigation path
➔ Start
Precondition:
R The process has been started.
u Navigate to the [Start] menu via the navigation path.
u Using the navigation control, navigate to the parameter that you wish to change.
u Tap the function Edit on the function bar.
The control panel shows a dialog box with a numeric input box.
The control panel highlights the selected parameter in white.
u Enter the value in the numeric input box.
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u Tap the function [Save] on the function bar.
The setting is saved.
The dialog box closes.
7.9.4Ending freeze-drying
Navigation path
➔ Start
Precondition:
R The sample is dry.
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Aerate ] on the function bar.
u Answer YES to the confirmation question.
The system is vented.
The status bar shows the status Aerating.
u As soon as the status bar shows the status Unload / Load, remove the dried sam-
ple from the drying rack.
7.9.5Shutting down the instrument
Time
40min
required:
IMPORTANT
Do not use force to remove the ice from the ice condenser.
Navigation path
➔ Start
Precondition:
R The freeze-drying process has ended.
u Position the condensate drain hose so that the condensate can be drained off.
See Chapter5.3.9 "Preparing the condensate drain hose", page31
u Navigate to the [Start] menu via the navigation path.
u Tap the function [Shut d ow n] on the function bar.
The instrument shuts down.
The status bar shows the remaining time and the status Shutting down.
After the instrument has shut down, the status bar shows the remaining time and
The BUCHI Connect Solution is an IT solution for mobile monitoring of processes.
The BUCHI Connect Solution allows processes to be tracked and analysed from a
mobile device while in progress.
Notifications keep the user informed of the status of the instrument.
Similar to the display on the control panel, the BUCHI Monitor app shows the current
settings and actual readings. Depending on the control unit, the BUCHI Monitor app
shows either the alphanumeric data only or the data and progression graph (control
panel Pro) process.
Setting up the BUCHI Connect Solution requires the following steps:
u Connect the instrument to the local network (LAN), see Chapter8.3 "Connecting
the instrument to the LAN", page75.
u Assign dynamic IP addresses (DHCP), see Chapter8.5 "Assigning a dynamic IP
u Enable the control panel for the BUCHI Cloud, see Chapter8.6 "Enabling the con-
address", page76.
trol panel on the BUCHI Cloud", page76.
u Enable ports on the Internet gateway, see .
u Install the BUCHI Monitor app, see Chapter8.7 "Downloading the BUCHI Monitor
app", page76.
u Connect the instrument to the BUCHI Monitor app.
u Activate notifications, see Chapter8.12 "Enabling notifications", page80.
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8.2Handling data
The instrument sends the following data to the server via the LAN interface:
Serial number and system name of the control panel
Notifications that have been shown on the mobile device.
The following current process parameters with timestamp:
◦ Process phase and step: actual reading
◦ Condenser temperature: actual reading
◦ Condenser pressure: actual reading and specified setting
◦ Drying chamber pressure: actual reading and specified setting
◦ Drying shelf temperature: actual reading and specified setting
◦ Product temperature: actual reading
◦ Events: phase transition
The process data is regularly deleted and not used for other purposes.
8.3Connecting the instrument to the LAN
Fig.37: Connection
1 LAN port
u Plug the network cable into the port marked LAN (1).
NOTE
Do not unplug the LAN cable while the device is connected to the BUCHI Connect
Solution.
8.4Requirements for local network settings
u The following port has to be enabled in the firewall on the internet gateway:
Port 443 (HTTPS) open for TCP
u In order to use the BUCHI Cloud a DNS server must be configured on the inter-
face unit.
NOTE
If there is no DNS server available, the BUCHI Cloud connection must be configured
by entering the IP address.
NOTE
If there is no DHCP server available, the IP address, gateway subnet mask and DNS
server can be configured manually on the interface unit.
u Tap the [(+)] sign in the top left corner.
u Tap the option [Manual e ntry].
u Enter the password.
u Tap [Confir m] .
The password entered is applied.
u Tap [OK] to confirm.
5 The instrument is connected to the BUCHI Monitor app.
NOTE
The system name displayed is taken from the control panel.
8.11Removing the instrument from the app
u Start the BUCHI Monitor app on the mobile device.
u Tap the symbol [List].
The display shows a list of instruments that are connected to the BUCHI Monitor
app.
u Tap the instrument that you wish to remove.
u Tap the Remove symbol in the top right corner.
u Answer the confirmation question.
The instrument is removed from the BUCHI Monitor app.
8.12Enabling notifications
The BUCHI Monitor app offers a series of notifications that can be sent automatically
to the mobile device while a process is running. The notifications inform the user of
the current status of the process.
Fig.41: Possible settings on the BUCHI Monitor app
1 Name of the active instrument
u Start the BUCHI Monitor app.
u Tap the symbol [Settin gs ].
u Tap the instrument for which you wish to enable notifications.
The display shows a dialog box listing the notification types available.
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3
2
1
Fig.42: Dialog box showing notification types
1 Name of the active instrument2 Check-box
3 Possible notifications
u Select the desired notifications by tapping the relevant check-boxes (2).
Notifications are enabled.
u Tap [OK] to save the settings.
5 The display shows the [Settin gs ] screen.
8.13Remotely retrieving process data
The data for the process currently running can be retrieved on the BUCHI Monitor
app.
Precondition:
R The BUCHI Monitor app is connected to the instrument.
u Start the BUCHI Monitor app and select the required instrument.
The BUCHI Monitor app home screen is displayed showing a summary of the
available process parameters.
The leak test checks the vacuum system for possible leaks.
Time
45min
required:
NOTE
The leak test can be aborted by tapping [Stop] on the function bar.
Navigation path
➜ Configuration ➜ Servicing ➜ Leak test
Precondition:
R A top-mount drying rack is fitted.
u Navigate to the action [Leak t es t] via the navigation path.
u On the Ice Condenser line, enter a required setting for the vacuum.
u On the Volume line, enter the actual volume of the system. The volume of the sys-
tem is calculated from the volume of the ice condenser and the top-mount drying
rack.
u Tap the function [Start] on the function bar.
The leak test starts.
The status bar is showing the status Running.
5 After completion of the leak test, the [Leak t es t] line shows whether the leak test
has been passed or not.
5 The leak test is passed if the measured leakage rate is less than the pre-set rate
of 10.10mbar*L/h.
Troubleshooting after failed leak test
Possible causeAction
Top-mount drying rack not correctly fitted Fit the top-mount drying rack correctly.
300mm dia. O-rings dirtyWipe down the 300mm O-rings with a
300mm dia. O-rings damagedInspect 300mm O-rings and replace as
KF clamps not closedClose the KF clamps.
KF seals dirtyWipe down the KF seals with a damp
KF seals damagedInspect KF seals and replace as neces-
Pump oil dirtyService according to manufacturer's in-
9.3Performing a vacuum test
The vacuum test checks the performance capacity of the vacuum system.
Time
required:
max. 10min
damp cloth.
necessary.
cloth.
sary.
structions.
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Navigation path
➜ Configuration ➜ Servicing ➜ Vacuum test
Precondition:
R Conditioning of the instrument has been completed.
R A top-mount drying rack is fitted.
R The top-mount drying rack does not contain a sample.
u Navigate to the action [Vacuum T est] via the navigation path.
u Specify a required setting for the vacuum to be achieved.
u Specify a required time within which the vacuum is to be reached.
u Tap the function [Start] on the function bar.
The vacuum test starts.
The status bar shows the status Vacuum Test.
If the vacuum pressure is not below 500mbar after 30s, the vacuum test automati-
cally aborts.
5 After completion of the vacuum test, the [Vacuum t est] line shows whether the
vacuum test has been passed or not.
Troubleshooting after failed vacuum test
Possible causeAction
Top-mount drying rack not correctly fitted Fit the top-mount drying rack correctly.
300mm dia. O-rings dirtyWipe down the 300mm O-rings with a
damp cloth.
300mm dia. O-rings damagedInspect 300mm O-rings and replace as
necessary.
KF clamps not closedClose the KF clamps.
KF seals dirtyWipe down the KF seals with a damp
cloth.
KF seals damagedInspect KF seals and replace as neces-
sary.
The pump connected is not delivering
sufficient performance
Carry out vacuum test with a different
vacuum pump.