Buchi CH-9230 User manual

Ultrasonic Package
Operation Manual
11594107 | A en

Imprint
Product Identification:
Operation Manual (Original) Ultrasonic Package
11594107
Publication date: 01.2020
BÜCHI Labortechnik AG
Meierseggstrasse 40
Postfach
CH-9230 Flawil 1
E-Mail: [email protected]
BUCHI reserves the right to make changes to the manual as deemed necessary in the light of experi-
ence, especially with respect to structure, illustrations and technical details.
This manual is copyrighted. Information from it may neither be reproduced, distributed, or used for com-
petitive 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.

BÜCHI Labortechnik AG Table of contents
Operation Manual Ultrasonic Package iii
Table of contents
1 About this document...........................................................................................................5
1.1 Warning notices in this document........................................................................................................ 5
1.2 Connected devices .............................................................................................................................. 5
1.3 Symbols............................................................................................................................................... 5
1.3.1 Warning symbols .....................................................................................................................5
1.3.2 Mark-ups and symbols.............................................................................................................6
1.4 Trademarks.......................................................................................................................................... 6
2 Safety....................................................................................................................................7
2.1 Proper use ........................................................................................................................................... 7
2.2 Use other than that intended ............................................................................................................... 7
2.3 Staff qualification ................................................................................................................................. 7
2.4 Location of warning signs on the product ............................................................................................ 8
2.5 Residual risks ...................................................................................................................................... 8
2.5.1 Faults during operation ............................................................................................................8
2.5.2 Hot surfaces.............................................................................................................................9
2.5.3 Dangerous vapors.................................................................................................................... 9
2.6 Personal protective equipment ............................................................................................................ 9
2.7 Modifications........................................................................................................................................ 9
3 Product description...........................................................................................................10
3.1 Description of function ....................................................................................................................... 10
3.2 Configuration ..................................................................................................................................... 10
3.2.1 Front view ultrasonic controller ..............................................................................................10
3.2.2 Rear view ultrasonic controller...............................................................................................11
3.2.3 Ultrasonic nozzle.................................................................................................................... 11
3.3 Type plate.......................................................................................................................................... 12
3.4 Scope of delivery ............................................................................................................................... 12
3.5 Technical data ................................................................................................................................... 12
3.5.1 Ultrasonic controller ...............................................................................................................12
3.5.2 Ultrasonic nozzle.................................................................................................................... 12
3.5.3 Ambient conditions.................................................................................................................13
3.5.4 Materials ................................................................................................................................13
4 Transport and storage ......................................................................................................14
4.1 Transport ........................................................................................................................................... 14
4.2 Storage .............................................................................................................................................. 14
5 Installation..........................................................................................................................15
5.1 Before installation .............................................................................................................................. 15
5.2 Installation site................................................................................................................................... 15
5.3 Establishing electrical connections.................................................................................................... 15
5.4 Installing the ultrasonic controller ...................................................................................................... 16
5.5 Installing the ultrasonic nozzle in open mode.................................................................................... 16
5.6 Installing the ultrasonic nozzle in closed mode.................................................................................. 18

Table of contents BÜCHI Labortechnik AG
iv Operation Manual Ultrasonic Package
6 Operation............................................................................................................................22
6.1 Operating the display......................................................................................................................... 22
6.1.1 Layout of the display.............................................................................................................. 22
6.1.2 Entering settings ....................................................................................................................22
6.1.3 Selecting the operation mode ................................................................................................22
6.2 Finding the optimal spray cone.......................................................................................................... 23
6.2.1 Finding the optimal spray cone (Power-leveling mode)......................................................... 23
6.2.2 Finding the optimal spray cone (Load-leveling mode) ...........................................................23
6.3 Carrying out a spray drying process in open mode ........................................................................... 23
6.3.1 Tasks before starting spray drying in open mode.................................................................. 23
6.3.2 Preparing the instrument for open mode ...............................................................................24
6.3.3 Starting a spray drying process in open mode....................................................................... 24
6.3.4 Tasks during spray drying......................................................................................................24
6.3.5 Ending a spray drying process in open mode........................................................................24
6.3.6 Shutting down the instrument ................................................................................................25
6.4 Carrying out a spray drying precess in closed loop mode................................................................. 25
6.4.1 Tasks before starting spray drying in closed mode................................................................ 25
6.4.2 Preparing the instrument for closed mode............................................................................. 25
6.4.3 Starting a spray drying process in closed mode ....................................................................26
6.4.4 Tasks during spray drying......................................................................................................26
6.4.5 Ending a spray drying process in closed mode .....................................................................26
6.4.6 Shutting down the instrument ................................................................................................27
7 Cleaning and servicing .....................................................................................................28
7.1 Regular maintenance work................................................................................................................ 28
7.2 Cleaning the ultrasonic nozzle........................................................................................................... 28
8 Help with faults ..................................................................................................................30
8.1 No liquid delivery ............................................................................................................................... 30
8.2 Liquid emerges unatomized............................................................................................................... 30
8.3 Error messages ................................................................................................................................. 30
9 Taking out of service and disposal..................................................................................31
9.1 Taking out of service.......................................................................................................................... 31
9.2 Disposal............................................................................................................................................. 31
9.3 Returning the instrument ................................................................................................................... 31
10 Appendix ............................................................................................................................32
10.1 Spare parts and accessories ............................................................................................................. 32
10.1.1 Accessories............................................................................................................................32
10.1.2 Spare parts ............................................................................................................................32

BÜCHI Labortechnik AG About this document | 1
Operation Manual Ultrasonic Package 5/34
1 About this document
This operation manual is applicable for all variants of the instrument.
Read this operation manual before operating the instrument and follow the instruc-
tions to ensure safe and trouble-free operation.
Keep this operation manual for later use and pass it on to any subsequent user or
owner.
BÜCHI Labortechnik AG accepts no liability for damage, faults and malfunctions re-
sulting from not following this operation manual.
If you have any questions after reading this operation manual:
uContact BÜCHI Labortechnik AG Customer Service.
https://www.buchi.com/contact
1.1 Warning 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 word Meaning
DANGER Indicates a danger with a high level of risk which could result in
death or serious injury if not prevented.
WARNING Indicates a danger with a medium level of risk which could result in
death or serious injury if not prevented.
CAUTION Indicates a danger with a low level of risk which could result in mi-
nor or medium-severity injury if not prevented.
NOTICE Indicates a danger that could result in damage to property.
1.2 Connected devices
In addition to these operating instructions, you should also follow the instructions and
specifications in the documentation for the connected devices.
1.3 Symbols
The following symbols are displayed in this operation manual or on the device:
1.3.1 Warning symbols
Symbol Meaning
General warning
Hot surface
Dangerous electrical voltage
Device damage

1 | About this document BÜCHI Labortechnik AG
6/34 Operation Manual Ultrasonic Package
1.3.2 Mark-ups and symbols
NOTE
This symbol draws attention to useful and important information.
RThis character draws attention to a requirement that must be met before the in-
structions below are carried out.
uThis character indicates an instruction that must be carried out by the user.
ðThis character indicates the result of a correctly carried out instruction.
Mark-up Explanation
Window Software Windows are marked-up like this.
Tab Tabs are marked-up like this.
Dialog Dialogs are marked-up like this.
[Button] Buttons are marked-up like this.
[Field names] Field names are marked-up like this.
[Menu / Menu item] Menus or menu items are marked-up like this.
Status Status is marked-up like this.
Signal Signals are marked-up like this.
1.4 Trademarks
Product names and registered or unregistered trademarks that are used in this docu-
ment are used only for identification and remain the property of the owner in each
case.

BÜCHI Labortechnik AG Safety | 2
Operation Manual Ultrasonic Package 7/34
2 Safety
2.1 Proper use
The device has been designed and built for laboratories.
The ultrasonic nozzle together with the ultrasonic controller are designed for spray
drying purposes using the BUCHI Mini Spray Dryer B-290 and its subsystems.
The ultrasonic nozzle together with the ultrasonic controller are designed to atom-
ize liquids with viscosities lower or equal to 50 cps.
2.2 Use other than that intended
Use of any kind other than that described in the section Proper use Chapter2.1
"Proper use", page7 and any application that does not comply with the technical
specifications (see Chapter3.5 "Technical data", page12) constitutes use other
than that intended.
In particular, the following applications are not permissible:
Use of the instrument with non-BUCHI products nor with any other BUCHI model
than the Mini Spray Dryer B-290.
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.
Use of the instrument for food, pharmacy and cosmetic products without appropri-
ate cleaning.
Use of the instrument without an appropriate leading away exhaust gas from the
working area.
Use of gases with unknown chemical composition.
Use of the instrument with organic solvents (> 20 %) without safety lamella curtain
and Inert Loop B-295.
Use of the instrument with organic solvents (> 20 %) in open mode.
Production and processing of substances that can lead to spontaneous reactions,
such as explosives, metal hydrides or solvents that can form peroxides.
Use of the instrument with samples which produce oxygen during the processing.
Use of the instrument with toxic substances without appropriate safety measures.
Use of the instrument with biohazardous materials such as viruses or bacteria.
Use of the instrument with samples which can block the feed channel of the ultra-
sonic nozzle.
Use of the instrument with substances which might explode or ignite due to the
processing and the selected parameters.
Use of the instrument with corrosive samples other than the Mini Spray Dryer
B-290 ACID.
Use of the instrument with corrosive samples in closed mode.
2.3 Staff 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:

2 | Safety BÜCHI Labortechnik AG
8/34 Operation Manual Ultrasonic Package
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 as-
pects:
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 ([email protected]).
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.
2.4 Location of warning signs on the product
1
5
Fig.1: Location of the warning signs
General warning Electricity
2.5 Residual risks
The device has been developed and manufactured using the latest technological ad-
vances. 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.
2.5.1 Faults during operation
If a device is damaged, sharp edges, moving parts or exposed electrical wires can
cause injuries.
uRegularly check device for visible damage.

BÜCHI Labortechnik AG Safety | 2
Operation Manual Ultrasonic Package 9/34
uIf faults occur, switch off the device immediately, unplug the power cord and in-
form the operator.
uDo not continue to use devices that are damaged.
2.5.2 Hot surfaces
The surfaces of the device can become very hot. If touched they can cause skin
burns.
uDo not touch hot surfaces or else wear suitable protective gloves.
2.5.3 Dangerous vapors
The use of the instrument can produce dangerous vapors that are capable of causing
life-threatening toxic effects.
uDo not inhale any vapors produced during processing.
uEnsure that vapors are removed by a suitable fume hood.
uOnly use the device in well ventilated areas.
uIf vapors escape from connections, check the seals concerned and replace them if
necessary.
uDo not process any unknown fluids.
uObserve the safety data sheets for all substances used.
2.6 Personal protective equipment
Depending on the application, hazards due to heat and/or corrosive chemicals may
arise.
uAlways wear appropriate personal protective equipment such as safety goggles,
protective clothing and gloves.
uMake sure that the personal protective equipment meets the requirements of the
safety data sheets for all chemicals used.
2.7 Modifications
Unauthorized modifications may impair safety and lead to accidents.
uUse only genuine BUCHI accessories, spare parts and consumables.
uTechnical 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.

3 | Product description BÜCHI Labortechnik AG
10/34 Operation Manual Ultrasonic Package
3 Product description
3.1 Description of function
The ultrasonic nozzle with the ultrasonic controller are built to be used as liquid atom-
izer in the spray drying process with the Mini Spray Dryer B-290 and its subsystems.
An ultrasonic atomizing nozzle is a device that vibrates at frequencies beyond human
hearing (>20 kHz). The vibration on the atomizing surface of the nozzle produces a
low velocity spray by breaking up a liquid feed into a spray of droplets. This phenome-
non is the result of the decay of an unstable capillary wave that develops in the liquid.
The spray velocity is typically low with 18-36 cm/s as compared to 10-20 m/s for pres-
sure atomizing nozzles. The ultrasonic controller provides the high frequency electri-
cal energy required to operate the ultrasonic atomizer nozzle.
Three modes are available:
Mode Solvent composition
Open mode up to 20 % organic solvent
Closed mode with
B-295
between 80 % - 100 % organic solvent
Closed mode with
B-295 and B-296
between 20 % - 80 % organic solvent
3.2 Configuration
3.2.1 Front view ultrasonic controller
4
3
2
1
Fig.2: Front view
1 On/Off master switch 2 Display
3 Navigation control 4 LED

BÜCHI Labortechnik AG Product description | 3
Operation Manual Ultrasonic Package 11/34
3.2.2 Rear view ultrasonic controller
3
2
1
Fig.3: Rear view
1 Type plate 2 Connector ultrasonic nozzle
3 Power supply connection
3.2.3 Ultrasonic nozzle
123
4
5
Fig.4: Ultrasonic nozzle
1 Cooling gas IN 2 Connector feed tube
3 Cooling gas OUT 4 Ultrasonic cable
5 Atomizing surface

3 | Product description BÜCHI Labortechnik AG
12/34 Operation Manual Ultrasonic Package
3.3 Type plate
Type plate on the ultrasonic controller is located in the rear on the side .
XXXXXXXXX
XXXXXXXXXXX
XXXXXXXXXX
XXXXXXXX
XXXX
XXXX
Fig.5: Type plate
1 Device name 2 Serial number
3 Input voltage range 4 Frequency of input voltage
5 Maximum power rating 6 Year of manufacture
7 Country of manufacture
3.4 Scope of delivery
NOTE
The scope of delivery depends of the configuration of the purchase order.
Accessories are delivered as per the purchase order, order confirmation, and deliv-
ery note.
3.5 Technical data
3.5.1 Ultrasonic controller
Dimensions (W x D x H) 223 x 242 x 79 mm
Weight 1.8 kg
Connection voltage 100 - 240 ± 10 % VAC
Frequency 50 / 60 Hz
Power consumption max. 50 W
IP Class 20
3.5.2 Ultrasonic nozzle
Maximum operating temperature of the nozzle 100 °C
Dimensions (W x D x H) 51 x 51 x 190 mm
Weight 0.54 kg
Connection voltage 23 - 25 ± 5 % VAC
Ultrasonic frequency 60 kHz

BÜCHI Labortechnik AG Product description | 3
Operation Manual Ultrasonic Package 13/34
3.5.3 Ambient conditions
For indoor use only.
Max. altitude above sea level 2000 m
Ambient temperature 5 - 40°C (25°C)
Maximum relative humidity 80% for temperatures
up to 31°C
Storage temperature max. 45 °C
3.5.4 Materials
Component Materials of construction
Ultrasonic nozzle Titanium
Stainless steel
Housing Painted aluminum (chassis)
Painted steel (cover)

4 | Transport and storage BÜCHI Labortechnik AG
14/34 Operation Manual Ultrasonic Package
4 Transport and storage
4.1 Transport
NOTICE
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.
uAfter transporting, check the instrument and all glass components for damage.
uDamage that has occurred in transit should be reported to the carrier.
uKeep packaging for future transportation.
4.2 Storage
uMake sure that the ambient conditions are complied with (see Chapter3.5 "Tech-
nical data", page12).
uWherever possible, store the device in its original packaging.
uAfter storage, check the device for damage and replace if necessary.

BÜCHI Labortechnik AG Installation | 5
Operation Manual Ultrasonic Package 15/34
5 Installation
5.1 Before installation
NOTICE
Instrument damage due to switching it on too early.
Switching on the instrument too early after transportation can cause damage.
uClimatize the instrument after transportation.
5.2 Installation site
Place the ultrasonic controller on the product feed table of the Mini Spray Dryer
B-290.
NOTE
Make sure that the power supply can be disconnected at any time in an emergency.
5.3 Establishing electrical connections
NOTE
Observe the legal requirements when connecting the instrument to the power supply.
4Use additional electrical safety features (e.g., residual-current circuit breakers) to
comply with local laws and regulations.
The power supply must fulfil the following conditions:
1. Provide the mains voltage and frequency specified on the type plate of the instru-
ment.
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 proper earthing.
NOTICE
Risk of property damage and diminished performance due to use of un-
suitable power cables.
The power supply cables supplied with the product by BUCHI precisely match the re-
quirements 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.
uUse only the power supply cables supplied with the product or ordered separately
from BUCHI.
uIf using any other power supply cables, make sure that they match the specifica-
tions on the type plate.
uMake sure that all connected devices are earthed.
uIf an extension lead is required, make sure that it is earthed and has a suitable
power rating.
uMake sure that the power plug is freely accessible at all times.

5 | Installation BÜCHI Labortechnik AG
16/34 Operation Manual Ultrasonic Package
uPlug the power cable into the connection labelled Power IN on the back of the in-
strument.
uPlug the mains plug into the power socket.
5.4 Installing the ultrasonic controller
uPlace the instrument on the product feed table
of the Mini Spray Dryer B-290.
5.5 Installing the ultrasonic nozzle in open mode
WARNING
Incorrect cooling gas in open mode e.g. Nitrogen
Incorrect cooling gas can lead to unconsciousness, intoxication and other serious per-
ils.
uUse compressed air.
uOther gases install the instrument in a fume hood.
NOTICE
Water as cooling medium
Water as cooling medium can cause an instrument damage.
uUse compressed air.
uInsert the ultrasonic nozzle into the heater ele-
ment of the Mini Spray Dryer B-290.
uAttach the ultrasonic nozzle with the ultrasonic
nozzle cable on the ultrasonic controller.

BÜCHI Labortechnik AG Installation | 5
Operation Manual Ultrasonic Package 17/34
uAttach the cooling gas onto the connection
marked IN.
uAttach the inlet tube in place with the union
nut.
uSelect a suitable type of supply hose. See re-
sistance table of the "Operation Manual B-290
Mini Spray Dryer ".
uCut approx. 50 mm from the feeding tube.
uAttach the damper to the Y-piece.
uAttach the tube piece to the Y-piece.
uAttach the feeding tube to the Y-piece.

5 | Installation BÜCHI Labortechnik AG
18/34 Operation Manual Ultrasonic Package
uAttach the assembled feeding tube to the noz-
zle.
uAttach the inlet tube in place with the union
nut.
uInstall the feed tube at the peristaltic pump.
See operation manual Mini Spray Dryer
B-290.
uAdjust the peristaltic pump bed. See "Opera-
tion Manual Mini Spray Dryer B-290 "
5.6 Installing the ultrasonic nozzle in closed mode
DANGER
Incorrect cooling gas in closed mode e.g. compressed air
Incorrect cooling gas can lead to an potential explosive environment.
uUse inert gas.
NOTICE
Water as cooling medium
Water as cooling medium can cause an instrument damage.
uUse compressed air.
uInsert the ultrasonic nozzle into the heater ele-
ment of the Mini Spray Dryer B-290.
uAttach the ultrasonic nozzle with the ultrasonic
nozzle cable on the ultrasonic controller.

BÜCHI Labortechnik AG Installation | 5
Operation Manual Ultrasonic Package 19/34
uAttach the cooling gas onto the connection
marked IN.
uAttach the inlet tube in place with the union
nut.
uSelect a suitable type of supply hose. See re-
sistance table of the "Operation Manual B-290
Mini Spray Dryer ".
uCut approx. 50 mm from the feeding tube.
uAttach the damper to the Y-piece.
uAttach the tube piece to the Y-piece.
uAttach the feeding tube to the Y-piece.

5 | Installation BÜCHI Labortechnik AG
20/34 Operation Manual Ultrasonic Package
uAttach the assembled feeding tube to the noz-
zle.
uAttach the inlet tube in place with the union
nut.
uInstall the feed tube at the peristaltic pump.
See operation manual Mini Spray Dryer
B-290.
uAdjust the peristaltic pump bed. See "Opera-
tion Manual Mini Spray Dryer B-290 "
uCut the drying gas hose 200 mm below the
heater.
uAttach the hose connector to the inert gas
adapter.
uAttach the inert gas connector to the hose.
uAttach the inert gas adapter in place with a
hose clip.