13 Index ................................................................................................................................... 81
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1 General information
1.1 Importance of the operating manual
A fundamental requirement for the safe and trouble-free operation of the
unit is to be familiar with the fundamental safety instructions and all
possible hazards.
The operating manual includes important information concerning the safe
operation of the rotational vacuum concentrator (RVC).
This operating manual, and in particular the notes on safety and hazards,
must be observed by all persons operating the unit.
In addition, the local rules and regulations for the prevention of accidents
must be complied with.
1.2 Intended use
CHRIST rotational vacuum concentrators are solely intended for
evaporation under rotation, e.g. for the following tasks:
• concentration of DNA/RNA, proteins etc.
• preparation of samples for HPLC/thin layer chromatography, gas
chromatography, mass-spectronomy
• isolation and synthesis of organic substances
• high-throughput-screening (HTS)
• general in-lab evaporation.
Any other use beyond this area of application is regarded as improper use.
Martin Christ Gefriertrocknungsanlagen GmbH cannot be held liable for any
damage resulting from such improper use.
The intended use also includes:
•observation of all the notes and instructions included in the operating
manual
•compliance with the inspection and maintenance instructions
•prohibition of any type of extensions to, or conversions of, the unit.
1.3 Warranty and liability
The warranty and liability are subject to our "General Terms and
Conditions" that were distributed to the operator upon the conclusion of the
contract.
Warranty and liability claims are excluded if they are due to one or several
of the following reasons:
• improper use
• non-compliance with the safety instructions and hazard warnings in the
• improper installation, start-up, operation, and maintenance of the RVC.
operating manual
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1.4 Copyright
The copyright concerning the operating manual remains with Martin Christ
Gefriertrocknungsanlagen GmbH.
The operating manual is solely intended for the operator and their
personnel. It includes instructions and information that may not be
• duplicated,
• distributed, or
• communicated in any other way neither in full nor in parts.
Non-compliance may be prosecuted under criminal law.
1.5 Explanation of symbols
In this operating manual, the specialist terms that are explained in the
glossary (see chapter 12 - "Glossary") are marked by an arrow and printed
in italics (e.g. safety pressure).
1.6 Standards and regulations
EC-Declaration of conformity (see appendix)
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1.7 Scope of supply
The scope of supply comprises:
• 1 O-ring 6x1
• 1 O-ring 10x1
• 1 O-ring 18x2
• 1 O-ring 21x3
• 1 ball bearing 608-ZR02 T9 (ceramic)
• 1 ball bearing 6001-ZR02 T9/C3 (ceramic)
• 1 oil pen (oil for precision engineering) for the lid locks
• 1 ball bearing installation tool
• 1 centring ring (Vacuum connection to the rotor chamber)
• 1 tension chain
• 1 socket wrench (size 5.5)
• 1 operating manual
Fig. 1: Scope of supply
Accessories and commissioning
According to your order, our order confirmation, and our delivery note.
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1Lid lock device
2Lid
3Rotor chamber
4User interface (see
chapter 6.5.1 - "User
interface")
5Rotor shaft
6Mains power switch
7Name plate (see
chapter 2.1.2 - "Name
plate")
8Equipotential bonding
screw (see chapter
3.7.4 - "Earth
conductor check")
9Connection for mains
cable, with a fuse
drawer
10 Electrical connection
for the stop valve
11 Vacuum connection
12 Connection for
aeration
2 Layout and mode of operation
2.1 Layout of the RVC
2.1.1 Functional and operating elements
Fig. 1: Total view of the Rotational Vacuum Concentrator
Fig. 1: Rear view of the Rotational Vacuum Concentrator
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1Serial number
2Type
3Nominal voltage
4Year of manufacture
(month/year)
5Part number
6Rated current /
apparent power
Fig. 2: Example of a name plate
2.1.2 Name plate
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2.2 Mode of operation
2.2.1 Principle of the rotational vacuum concentration
This method is used for the particularly quick and gentle evaporation,
drying, purification, and concentration of samples.
Rotational vacuum concentration is an alternative to rotary evaporators that
use high temperatures and operate nearly at normal pressure. Because of
the vacuum, the sample boils at low temperatures, and water as well as
organic solvents can be evaporated in a particularly gentle manner. Due to
the fact that the sample rotates like in a centrifuge, the Boiling retardation
is prevented so efficiently that low pressure can be used. As a result,
temperature-sensitive samples can be concentrated by evaporation without
being damaged.
The solvent can be collected in a cooling trap and disposed of immediately
if desired.
Fig. 3: Vapour pressure curve for ice and water
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Fig. 4: Vapour pressure curves of commonly used organic solvents
2.2.1.1 Advantages of the rotational vacuum concentration
• No foaming of the samples, minimum loss.
• Several samples can be dried simultaneously.
• Concentration of the sample on the bottom of the vessel. This is
particularly advantageous for small volumes or dilute solutions.
• Suitable for drying aqueous and solvent-containing samples.
• For volumes < 1 ml up to > 3 l.
• Reproducible drying processes thanks to controlled process
parameters, such as the rotor chamber temperature (energy input for
the evaporation) and vacuum (up to the automatic adjustment of the
optimum operating pressure – depending on the pump systems).
•Easy and safe solvent recovery.
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2.2.1.2 Examples of use
• DNA/RNA (mainly water, ethanol, or methanol as solvent)
• Oligo-synthesis, peptides
• PCR (polymer chain reaction)
• HPLC (mainly water/acetonitrile as solvent)
• Isolation/synthesis of organic substances
• Storage and handling of substances (substance libraries)
• Combinational chemistry
• High-throughput-screening (HTS)
• Analysis of food and environmental samples, toxicology
• Forensic applications
• General laboratory evaporation
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Dangerous voltage
I
On (Power)
Hot surface
0
Off (Power)
Caution! Risk of bruising
Name plate (see chapter
2.1.2 - "Name plate")
Attention, consult the
operating manual
CE mark in compliance
with the directive
2006/42/EC
Protective earth (ground)
Unplug the mains plug
Earth (ground)
China RoHS 2 mark
(only for China)
Arrow indicating the
direction of rotation
NOTE
Safety indications on the rotational vacuum concentrator must be kept
readable at all times. If necessary, they must be replaced.
NOTE
Not all of the symbols/labels are used for this RVC type.
3 Safety
3.1 Marking of the unit
The following symbols are used for CHRIST RVC:
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DANGER
This symbol stands for a direct hazard to the life and health of persons.
Non-observance of these symbols causes serious health problems up to
life-endangering injuries.
DANGER
This symbol stands for a direct hazard to the life and health of persons
due to electrical voltage.
Non-observance of these symbols causes serious health problems up to
life-endangering injuries.
WARNING
This symbol stands for a potential hazard to the life and health of persons.
Non-observance of these symbols can cause serious health problems up
to life-endangering injuries.
CAUTION
This symbol indicates a potentially hazardous situation
Non-observance of these notes can cause minor injuries or damage to
property.
NOTE
This symbol indicates important information.
3.2 Explanation of the symbols and notes
This operating manual uses the following names and symbols to indicate
hazards:
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3.3 Responsibility of the operator
The operator is responsible for authorising only qualified personnel to work
on the RVC (see chapter 3.4 - "Operating personnel").
The areas of responsibility of the personnel concerning the operation,
maintenance, and care of the unit must be clearly defined.
The safety-conscious work of the personnel in compliance with the
operating manual and the relevant EC and national health and safety
regulations as well as with the accident prevention regulations must be
checked at regular intervals (e.g. every month).
The RVC must be maintained regularly (see chapter 8 - "Maintenance and
service").
3.4 Operating personnel
Persons operating the unit must
•be familiar with the fundamental regulations concerning workplace
safety and accident prevention
•have read and understood this operating manual (and in particular the
safety sections and warning notes) and confirmed this with their
signature.
3.5 Informal safety instructions
This operating manual is part of the product.
•The operating manual must be kept at the location of use of the RVC.
Ensure that it is accessible at all times.
•The operating manual must be handed over to any subsequent owner
or operator of the RVC.
• Any changes made must be added to the operating manual.
• In addition to the operating manual, the general and local rules and
regulations concerning the prevention of accidents and the protection of
the environment must also be supplied.
•Safety and danger indications on the RVC must be kept readable at all
times. If necessary, they must be replaced.
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DANGER
•Ensure that the local mains voltage matches the nominal voltage that is
stated on the name plate.
•Do not place any dangerous material, e.g. glass vessels containing
liquid substances, within the safety area of 30 cm around the RVC.
Spilled liquids may get into the RVC and damage the electrical or
mechanical components.
•Work on the power supply system must only be performed by certified
electricians.
•Inspect the electrical equipment of the unit regularly. Defects such as
loose or burnt cables must be eliminated immediately.
WARNING
• Do not use the RVC if it was installed incorrectly.
• Do not use the RVC without panels.
• Do not use the RVC with accessories that show signs of damage.
• Only use the RVC with accessories that have been approved by the
manufacturer. In case of doubt, contact the manufacturer (see chapter
7.2 - "Service contact").
•Do not hold your fingers between the lid and the housing when closing
the lid. Risk of crushing!
• Do not hit or move the RVC during its operation.
• Do not lean against or rest on the RVC during its operation.
• Check the RVC and accessories before every start-up for any visible
signs of damage.
•Do not evaporate any substances that could damage the material of
the rotors, rotor chamber or lid of the RVC in any way. Highly corrosive
substances (e.g. hydrogen chloride HCl) damage the material and
affect the mechanical strength of the rotors and accessories.
•Stop the RVC immediately in the event of a malfunction. Eliminate the
malfunction or contact the after-sales service of Martin Christ
Gefriertrocknungsanlagen GmbH (see chapter 7 - "Malfunctions and
error correction").
•Ensure that all repairs are performed only by authorised and
specialised personnel (see chapter 7.2 - "Service contact").
3.6 Safety instructions
3.6.1 Electrical safety
CHRIST rotational vacuum concentrators are units of safety class I. The
RVCs are equipped with a three-wire power cord and a 230 VAC safety
plug with earthing contact. Please comply with the following points in order
to preserve this safety feature:
3.6.2 Mechanical safety
In order to ensure the safe operation of the RVC, please comply with the
following points:
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GEFAHR
• Always use fuses of the same type and rating.
• Do not evaporate explosive or inflammable substances.
• Do not use the RVC within hazardous locations where there is a risk of
explosion.
DANGER
• Open and close the lid at the heat-insulated handle!
• Ensure that no limbs come into contact with hot unit parts or
accessories. Danger of burns!
•Wear heat-resistant gloves when inserting or removing the rotors.
DANGER
•Infectious, toxic, pathogenic, and radioactive substances must be
evaporated in suitable accessories. Take suitable precautions for your
own safety!
•Do not evaporate corrosive products (especially substances containing
acids) without special protective measures and devices such as, for
example, a cooling trap for the protection of the vacuum pump. Contact
the manufacturer (see chapter 7.2 - "Service contact").
•Special caution is necessary when handling azides, as a dangerous
explosive develops in combination with copper or nonferrous metals! It
is absolutely necessary to contact the manufacturer (see chapter 7.2 "Service contact").
•Keep informed about local measures to avoid harmful emissions
(depending on the substances to be evaporated).
•As personal protective equipment, safety gloves are required for the
use of the RVC.
The materials to be evaporated may, however, require additional
special safety measures (e.g. drying of infectious, toxic, radioactive, or
pathogenic substances)
3.6.3 Fire prevention
Fuses protect certain electrical circuits within the RVC against over-current
conditions.
3.6.4 Thermal safety
During the evaporation process, the housing, lid and interior of the RVC
can reach surface temperatures of more than +50°C.
3.6.5 Chemical and biological safety
If pathogenic, toxic, or radioactive samples are intended to be evaporated,
it is in the responsibility of the user to ensure that all necessary safety
regulations, guidelines, precautions, and practices are adhered to
accordingly.
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WARNING
•Ensure that the RVC was set up and connected properly (see chapter
5 - "Set-up and connection").
•Maintain a safety distance of at least 30 cm (12 inches) around the
RVC.
• Do not store any dangerous goods in the safety area of the RVC.
• Do not stay in the safety area longer than what is absolutely necessary
for the operation of the RVC.
•Only use accessories that have been approved by the manufacturer
(except for commercial vessels made of glass or synthetic materials).
We explicitly warn against the use of equipment of poor quality.
Breaking glass or bursting vessels can cause dangerous imbalances.
•Observe the instructions on the installation of accessories (see chapter
6.4.3 - "Installation of accessories").
3.6.6 Safety instructions for evaporation
The following instructions must be observed prior to every evaporation
process:
3.7 Safety devices
3.7.1 Lid lock device
3.7.2 System check
3.7.3 Power failure safety
3.7.4 Earth conductor check
The RVC can only be started when the lid is properly closed. The lid can
only be opened when the rotor has stopped. If the lid is open, the RVC
cannot be started.
An internal system check monitors the data transfer and sensor signals with
regard to plausibility. Errors are detected by continuous self-monitoring of
the system. Error messages are displayed in the process & equipment info
menu (see (see chapter 6.5.3.2 - "Process and equipment information") or
(see chapter 7.1.2 - "Process messages")).
The unit stores the current process parameters cyclically. In the event of a
power failure, the electromagnetic stop valve towards the vacuum pump will
close automatically, and the rotor decelerates brakeless. The rotor chamber
will not be aerated. After the restart of the power supply, the evaporation
process continues with the last stored parameters.
For the earth conductor check, there is an equipotential bonding screw on
the rear panel of the RVC. An earth conductor check can be carried out
with the aid of a suitable measuring instrument.
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DANGER
Fire:
•A fire in the electrical control system must be extinguished with a CO2
fire extinguisher!
•Burning oil must be extinguished with a CO2 fire extinguisher or powder
fire extinguisher!
Hazardous electrical incident:
•Set the mains power switch of the control system to the "0" position in
order to interrupt the power supply completely.
Burns:
•Small-area burns (e.g. finger) should be cooled immediately with
lukewarm water for approximately 2 minutes.
•Large-area burns should not be cooled because of the resulting risk of
hypothermia.
•Cover the burns loosely and in a sterile manner (e.g. with a sterile
dressing).
•Cover the injured person with a blanket.
IF IN DOUBT, CALL THE EMERGENCY PHYSICIAN (AMBULANCE)!
3.8 Procedures in the event of hazards and accidents
3.9 Remaining hazards
All CHRIST rotational vacuum concentrators were built state- of- the- art
and according to the accepted safety rules. However, danger to life and
limb of the operator, or of third parties, or impairments of the units or other
material assets cannot be completely excluded when the units are being
used.
•Use the RVC only for the purpose that it was originally intended for (see
chapter 1.2 - "Intended use").
• Use the RVC only if it is in a perfect running state.
• Immediately eliminate any problems that can affect safety.
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RVC 2-18 CDplus HCl
Height:
240 mm
Height with open lid:
410 mm
Width:
247 mm
Depth:
320 mm + 30 mm vacuum connection
Weight:
approx. 14 kg
4 Storage and transport
4.1 Storage conditions
4.2 Dimensions and weight
In order to ensure the protection against mechanical and climatic
influences, the guidelines of the German Federal Association for Wooden
Packages, Pallets, and Export Packaging (Bundesverband Holzpackmittel,
Paletten, Exportverpackung e.V.), the so-called HPE packaging guidelines,
must be applied when packing and storing the RVC.
The storage must be:
• dust-free
• dry
• free from excessive temperature fluctuations
• free from mechanical load.
Values for the RVC without a vacuum pump:
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CAUTION
The RVC 2-18 CDplus HClweighs approx. 14 kg!
4.3 Packaging
The RVC is packaged in a cardboard box or in a wooden crate, depending
on the scope of supply.
•After opening the packaging, take out the box containing the
accessories.
• Remove the packaging material.
• Lift the RVC upwards and out of the crate/cardboard box with a
sufficient number of people to lift it safely. When lifting the unit, always
reach under it from the side.
•Retain the packaging for any possible future transport of the RVC.
4.4 Transport safety device
The following transport safety devices must be removed prior to start-up:
•Remove the heat shrink tube at the hose nozzle of the aeration valve
(see the illustration below).
Fig. 5: Hose nozzle of the aeration valve with heat shrink tube (example illustration)
•Remove the layers of paper between the lid and rotor chamber; they
prevent the lid from getting stuck during the transport.
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CAUTION
The RVC 2-18 CDplus HCl weighs approx. 14 kg!
correct
incorrect
Fig. 6: Lifting the RVC
correct
incorrect
Fig. 7: Unit feet
4.5 On-site transport
•The RVC can be transported by a suitable number of persons who
reach under it from the sides.
•When lifting the RVC, always reach under it from the side. Do not grab
the unit at the plastic control panel (see figures below).
•When setting the unit down, ensure that the feet are upright (see figures
below).
•If the rotational vacuum concentrator needs to be transported over long
distances, transport it in suitable packaging, and if at all possible, the
original packaging.
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DANGER
The operating voltage on the name plate must correspond to the local
supply voltage
5 Set-up and connection
5.1 Installation site
5.2 Power supply
Operate the RVC only in closed and dry rooms.
• The table must be stable and have a solid, even tabletop.
• Ensure sufficient ventilation. Do not place any paper, cloth, or similar
material behind or under the unit, since otherwise the air circulation will
be impaired.
•Keep a safety distance of at least 30 cm from the wall so that the vents
in the unit remain fully effective.
• The ambient temperature must be in the range of +10°C to +25°C.
• Do not subject the RVC to thermal stress, e.g. by positioning it near
heat generators.
•Avoid direct sunlight (UV radiation).
5.2.1 Connection
CHRIST rotational vacuum concentrators are units of safety class I.Units of
the type RVC 2-18 CDplus HCl have a three-wire power cord with an IEC
C13 connector (see chapter 10 - "Technical data").
An equipotential bonding screw is located on the back (see chapter 2.1.1 "Functional and operating elements"). This equipotential bonding screw can
be used to perform an earth conductor check.
5.2.2 Customer-provided fuses
Typically, the RVC must be protected with 16 Amp G fuses that are to be
provided by the customer.
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NOTE
Unpressurised inert gas can also be used for aerating the rotor chamber.
NOTE
The small flange connections must be installed correctly in order to
prevent leaks (see chapter 7.1.5 - "Small flange connections ").
1Clamping chain
2Centring ring
3Flange connection
5.3 Aeration valve
The RVC is equipped with an electromagnetic aeration valve. The rotor
chamber is aerated through this valve after the end of the evaporation
process.
5.4 Vacuum connections
The vacuum connection is realised by way of a vacuum hose with standard
flange connections, clamping rings, or chains, and centring rings.
5.5 Connection of a vacuum pump and/or a cooling trap
In order to withdraw and condense the vapours that are formed, the RVC
5.5.1 BASIC: Withdrawal of the vapours by a vacuum pump
can be connected with further components.
The vapours are withdrawn by a vacuum pump, e.g. the vacuum diaphragm
pump for chemical applications "MZ 2C" or "MD 4C", followed by
condensation in a liquid-cooled emission condenser.
This method is suitable for low-boiling samples containing solvents. The
vacuum pump must be connected to the RVC. The connector of the stop
valve must be plugged into the socket on the back of the unit.
Fig. 8: Combination of the RVC with a vacuum pump and a stop valve, front and rear view
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1RVC
2Vacuum hoses
3Cover with connecting
hoses
4Aeration valve
(manual)
5Vacuum pump
6Electromagnetic stop
valve
5.5.2 STANDARD: Condensation of the vapours in a glass cooling trap
With a Rotational Vacuum Concentrator 2-18 CDplus HCl, a cooling
trap and a glass cooling trap
The characteristic feature of a rotational vacuum concentrator (RVC) is the
combination of vacuum and rotation. During the process, a gas volume is
released. The released vapours that are carried off by the RVC condenser
in the glass cooling trap. This glass cooling trap is located inside a CT 0250 SR or CT 04-50 SR cooling trap.
The method is suitable for aqueous and solvent-containing samples. The
RVC, cooling trap, and vacuum pump are connected with each other. The
electromagnetic stop valve is also connected to the RVC and its connector
is plugged into the "stop valve" socket.
An aeration valve can be installed between the vacuum pump and cooling
trap. It ensures the aeration, and facilitates the removal of the glass cooling
trap.
Fig. 9: Combination of the RVC with vacuum pump and cooling trap, front and rear view
5.5.3 PROFESSIONAL: Condensation of the vapours in a cooling trap with
distributor block
With a RVC 2-18 CDplus HCl and a cooling trap with distributor block
and glass cooling trap
The characteristic feature of a rotational vacuum concentrator (RVC) is the
combination of vacuum and rotation. During the process, a gas volume is
released. The released vapours that are carried off by the RVC condenser
in the glass cooling trap. This glass cooling trap is located inside a CT 0250 SR or CT 04-50 SR cooling trap.
The vacuum pump is connected to the distributor block. An electromagnetic
stop valve is connected to the RVC. The distributor block includes an
aeration valve. It ensures the aeration and facilitates the removal of the
glass cooling trap.
This method is suitable for aqueous and solvent-containing samples.
Fig. 3: Combination of the RVC with a vacuum pump and cooling trap with a distributor block
front and rear view
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5.5.4 PROFESSIONAL TWIN: Condensation of the vapours in a cooling trap with
distributor block and two RVCs
With two RVC 2-18 CDplus HCl and a cooling trap with distributor
block and glass cooling trap
The characteristic feature of a rotational vacuum concentrator (RVC) is the
combination of vacuum and rotation. During the process, a gas volume is
released. The released vapours that are carried off by the RVC condenser
in the glass cooling trap. This glass cooling trap is located inside a CT 0250 SR or CT 04-50 SR cooling trap.
The vacuum pump is connected to the distributor block. An electromagnetic
stop valve is connected to each of the RVCs. The distributor block includes
an aeration valve. It ensures the aeration and facilitates the removal of the
glass cooling trap.
The method is suitable for aqueous and solvent-containing samples.
Fig. 4: Combination of two RVCs with a vacuum pump and cooling trap
with a distributor block, front and rear view
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NOTE
Observe the installation direction of the stop valve!
NOTE
Only for GEMÜ solenoid valves,
type 52 (DN6):
GEMÜ solenoid valves of this type
must be installed contrary to the
marked flow direction (see the
illustration)!
Fig. 10: Gemü solenoid valve, type 52 (DN6)
5.6 Connection of an electromagnetic stop valve
The electromagnetic stop valve must be installed at the back of the
rotational vacuum concentrator between the chamber and the vacuum
pump or the cooling trap (depending on the type of application, chapter 5.5
- "Connection of a vacuum pump and/or a cooling trap".
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WARNING
Before the initial start-up, please ensure that your RVC is properly set up
and installed (see chapter 5 - "Set-up and connection")
DANGER
Do not place your fingers between the lid and the housing when closing
the lid. Risk of crushing!
NOTE
Depending on the version, up to three rotors can be pushed onto the rotor
shaft at the same time.
6 Operation
6.1 Initial start-up
6.2 Switching the RVC on
• Press the mains power switch on the right-hand side of the unit.
The CDplus control unit performs a self-test and an initialisation. This may
take several seconds.
• Follow the safety instructions and hazard warnings !
6.3 Opening and closing the lid
The lid can be opened if the rotor chamber is aerated and if the rotor is at a
standstill. The rotational vacuum concentrator cannot be started if the lid is
open.
• Select "mode" with the left-hand function key.
• Select "Open lid" with the up and down keys.
• To close, press slightly on the lid until both locks are locked.
6.4 Installation of rotors and accessories
6.4.1 Installation of angle rotors
• Only use inserts that are suitable for the rotor (see chapter 11.1 - "Rotor
program").
• Always load the opposite inserts of the rotors with the same accessories
and fill to avoid imbalance.
• Push the loaded rotor onto the rotor shaft until it reaches the stop.
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• Follow the safety instructions and hazard warnings (see chapter 3 "Safety")!
Fig. 11: Symmetrical loading of angle rotors
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6.4.2 Installation of swing-out rotors
• Push the loaded rotor onto the rotor shaft until it reaches the stop.
• Follow the safety instructions and hazard warnings (see chapter 3 -
"Safety")!
6.4.3 Installation of accessories
• Only use inserts that are suitable for the rotor (see chapter 11.1 - "Rotor
program").
• In swing-out rotors, all places of a rotor must be loaded with buckets..
• Always load the opposite inserts of the rotors with the same accessories
and fill to avoid imbalance.
Evaporation with different tube sizes
Working with different tube sizes is possible. In this case, however, it is
very important that the inserts are installed symmetrically (see figure).
Fig. 12: Permissible loading of the swing-out rotor with different tube sizes
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Evaporation with low capacity
The tubes must be installed symmetrically so that the buckets and their
inserts are loaded evenly to avoid imbalance.
Fig. 13: Permissible loading of swing-out rotors with low capacity
6.4.3.1 Tubes
• Load the tubes outside of the rotational vacuum concentrator. Solvents
• Fill the tubes carefully and arrange them according to their weight.
• Follow the safety instructions and hazard warnings(see chapter 3 -
in the buckets or rotor blocks cause corrosion.
"Safety")!
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at a standstill
under rotation
6.4.3.2 Rotor blocks
6.4.3.3 Buckets
• Always load the rotor blocks symmetrically with the same accessories
and fill to avoid imbalance.
Fig. 14: Symmetrical loading of the rotor blocks
• Load each bucket symmetrically to its pivotal point to ensure swinging
to 90° under rotation.
Fig. 15: Symmetrical loading of the buckets
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1 Pivotal point
2 Balance point
under rotation
• The balance point of the loaded bucket must be located considerably
below the pivotal point. If the balance point is too near the pivotal point,
the loaded bucket can be levered out of the bearings.
Fig. 16: Loading of buckets considering the balance point
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1 Left function key
2 Right function key
3 „Up“ key
4 „Down“ key
5 Display
6.5 CDplus control system
The control system CDplus (“Concentrator Display plus”) stands for a
convenient user interface for the intuitive control of evaporation processes
6.5.1 User interface
under rotation.
Fig. 17: User interface of the CDplus control system
Function keys (1+2)
The function of these keys depends on the menus and operating states of
the unit. The current key function is displayed in the black field next to the
key.
Fig. 18: Display of the assignment of the function keys;
here: left key "mode", right key "menu"
Up and down keys (3+4)
These keys are used to select the available functions and values or to
change the selected parameter values.
In addition, these keys also control the indication of the measurement value
channels in the value windows. The "up" key is assigned to the left value
window, whereas the "down" key controls the right value window.
• For a selection, press the "up" or "down" key repeatedly until the
desired measurement value channel is indicated in the respective value
window.
Display (5)
The main window of the display is divided into three areas: the values
windows, the assignment of the function keys and the status bar. The main
window shows the process data, e.g. set values and actual values, menus,
and process-relevant information (see figure).
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6 Values window
7 Assignment of the
function keys
8 Status bar
9 Measuring channel
10 Set value (only shown
in the run mode)
11 Unit of the measured
value
12 Actual value
13 Lid status
14 Icon for the operating
mode
15 Active phase
16 Info icon
Fig. 19: Structure of the CDplus display
Values window (6)
The values window is displayed after the initialisation of the CDplus control
system. It is divided into two areas. The indication of the measurement
value channels is controlled by way of the "up" and "down" keys (see
above). Each value window is structured as follows:
Fig. 20: Values window
The available measurement values can be displayed in the values window
on the left as well as in the values window on the right so that a
combination of the following values can be selected:
• Rotor speed
• Rotor chamber temperature
• Total time (indicates the total runtime of the process)
• Section time (indicates the runtime of an individual phase, e.g. warm-
up, evaporation)
Assignment of the function keys (7)
See "function keys" (1+2)
Status bar (8)
The status bar shows information regarding the lid status, current operating
mode, active phase, and any pending information. The status bar is visible
at all times.
Fig. 21: Status bar
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The lid is open.
The lid is closed.
The lid is not completely closed.
• Press both sides of the lid down in order to close the lid
completely.
The rotational vacuum concentrator is in the standby mode.
All aggregates are switched off.
The rotational vacuum concentrator is in the run mode. The
timer is deactivated.
The rotational vacuum concentrator is in the run mode. The
timer is activated.
Open lid
The rotor is at a standstill, and the lid can be opened.
Warm-up
The vacuum pump and/or the cooling trap are in the warmup phase.
Evaporation
manual
The RVC is in a manual-controlled evaporation run.
If any messages are pending, the info icon flashes every
second to draw the user's attention to error messages,
process messages, or general information concerning the
process or the unit.
The messages can be displayed in the process and
equipment information window (see chapter 6.5.3.2 "Process and equipment information")
Lid status (13)
Operating mode (14)
Active phases (15)
Pending information (16)
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DANGER
During the evaporation process, the housing, lid and interior of the
rotational vacuum concentrator can reach surface temperatures of more
than +50°C.
Risk of burns!
6.5.2 Mode
The mode selection can be activated by pressing the left-hand function key
in the active values window. The individual phases can be selected as
follows:
• Press the left-hand function key "mode". The menu "Start with phase…"
appears (see figure).
• Select the desired menu item with the up and down keys.
• Press the right-hand function key "enter" to confirm.
Fig. 22: Selecting the mode
Opening the lid
The lid can only be opened if the rotor is at a standstill. It is not possible to
open the lid during an evaporation process
Warm-up
Before starting an evaporation process, the vacuum pump and the cooling
trap should warm-up until they reach their respective operating
temperatures.
For this purpose, the warm-up phase can be started with or without a rotor.
The time and the temperature can be preselected (see chapter 6.5.3.3 "Options").
During the warm-up phase, the following processes take place:
• The rotor chamber is preheated - with or without a rotor - when the lid is
closed.
• The vacuum pump is switched on, the stop valve is closed. After the
warm-up phase, the following message is displayed:
Fig. 23: Message after the warm-up
• Open the lid and remove the rotor in order to load it with the product or
insert the loaded rotor.
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• Close the lid. A menu appears:
Fig. 24: Selection for continuing the evaporation
• Continue the process by selecting the desired phase.
Stopping the warm-up phase prematurely
During the warm-up phase, the functions "Open lid", "Continue with phase",
or "Stop warm-up" can be selected with the left-hand function key "mode".
If one of these functions is selected, the warm-up phase will be stopped
prematurely.
Evaporation manual
If the unit is in the standby mode, the evaporation phase can be started
directly without a warm-up phase. For this purpose, select from the menu
"Start with phase" the item "Evaporation manual".
Stopping the evaporation process prematurely
If the timer is active, the evaporation process will be stopped automatically
when the preset time is over. The process can also be aborted manually.
• Open the menu "Select mode" with the left-hand function key.
• Select the function "Stop evaporation".
• Press the right-hand function key to confirm.
Fig. 25: Stopping an evaporation process
In order to stop the evaporation process, the chamber is completely
aerated and the rotor is brought to a standstill. Then, the system inquires as
to whether the lid should be opened.
Fig. 26: Message after stopping an evaporation process
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1 Menu list
2 Menu title
3 Focus
4 Scrollbar
5 Function key
„Quit menu“
6 Function key
„Open menu“
6.5.3 Main menu
The main menu can be activated by pressing the right-hand function key
"menu" in the main window. It includes the following submenus:
• Changing the set values for the manual mode (see chapter 6.5.3.1 "Changing the set values for the manual mode ")
• Process- & equipment information system (see chapter 6.5.3.2 "Process and equipment information")
6.5.3.1 Changing the set values for the manual mode
• Options (see chapter 6.5.3.3 - "Options")
Fig. 27: Structure of the main menu
• Select the set value with the up and down keys. The selected value is
displayed in the focus.
Fig. 28: Manual mode – selecting a set value
• Press the right-hand function key to start the editing mode. The focus is
Fig. 29: The selected set value is displayed in an inverted manner
• Change the set value with the up/down keys.
• Press the right-hand function key "ok" to confirm.
The set value is edited. For the manual evaporation process, several set
values must be defined.
displayed in an inverted manner.
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NOTE
Because the RVC has no active cooling, it is not possible to reach
temperatures below room temperature. Under certain conditions (e.g. if a
frozen product is loaded into the unit) it may be reasonable to select a
temperature below room temperature.
1 Message
2 Status of the
Information
3 Number of messages
pending
4 Function key for
quitting the menu
5 Function key for
acknowledging the
message
NOTE
A detailed list of all messages can be found in chapter 7 "Malfunctions and
error correction".
Timer Evaporation
The time can be set between 1 minute and 200 hours. Using the down key
as of the time 00:01 h:m calls up the symbol . The timer is now
deactivated and the RVC operates continuously.
Timer Heating
The value that is set under “Timer Evaporation” is also used for “Timer
Heating”.
For some evaporation processes, however, it makes sense to reduce the
heating time. In this case, the value “Timer Heating” must be changed. The
value “Timer Heating” is always lower or equal to the value “Timer
Evaporation”.
Temperature
The temperature can be set between –80°C and +60°C.
6.5.3.2 Process and equipment information
The "Process & equipment Information " menu informs the user about any
error, process, or system messages.
In the event of a message, a sound signal can be heard and the symbol
"" is displayed on the status bar. In addition, the process and equipment
information is displayed. If the user is in a menu, the window will not be
displayed until the user quits the main menu.
Fig. 30: Structure of the process & equipment info window
In addition, the menu can be opened at any time to check whether any
messages are pending.
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Information present, not acknowledged
Information present, acknowledged
Error no longer present, information not acknowledged
Information status
Every piece of information shown in the process & equipment information
window receives a certain status:
6.5.3.3 Options
The sound signal continues until all the information is acknowledged.
Once some information is no longer present but has been acknowledged,
the information will be removed from the process & equipment information
window.
In order to quit the process & equipment information window, you have to
acknowledge all of the pieces of information so that the left-hand function
key "back" can be displayed.
Fig. 31: Menu “Options”
Change display contrast
• Select the menu "Change display contrast".
• Change the contrast by pressing the up/down keys.
• Confirm the new setting by pressing the right-hand function key.
Fig. 32: Changing the contrast
Select language
The CDplus control system can be used in German or English.
• Select the menu "Select language".
• Select the language using the up/down keys.
• Confirm the input by pressing the right-hand function key.
Fig. 33: Selecting a language
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NOTE
We guarantee that a speed of 1,350 rpm can be reached with all of the
available rotors. Higher speeds are possible in individual cases.
Settings
The Settings menu is used to customise the operation and process
management of the control system.
• Select the desired menu.
• Change the value using the up/down keys.
• Confirm the input by pressing the right-hand function key.
Fig. 34: Settings menu
Timer warm-up
You can set a warm-up time between 5 and 99 minutes.
Temperature warm-up
During the warm-up phase, the rotor temperature is set to the set
temperature.
Click at button push
If this function is activated, a brief sound signal can be heard whenever a
key is pressed.
High temperature resolution
Temperatures are displayed in the values window with a resolution of 1/10°C
(instead of a resolution of 1°C).
Rotor speed
The rotor speed can be set in a range between 100 rpm and 1,750 rpm.
Continuous operation VP
If this option is set to “yes”, the vacuum pump will not be switched off after
the evaporation. Instead, it will remain active. This is useful if several
evaporation processes are started in succession.
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Service menu
Fig. 35: Service menu
Load default settings
All set values and parameters are reset to the delivery status of the RVC.
The reset requires confirmation.
Extended service menu
The extended service menu is exclusively reserved for service engineers.
This area is password-protected and not available to the user.
6.6 Switching the RVC off
The RVC must be in the standby status.
• Switch the RVC off by pressing the mains power switch on the righthand side panel.
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Error
Possible reason
Correction
Lid cannot be opened
•The rotor chamber is not
aerated completely
•Aerate the rotor chamber
completely
Lid contacts error
•The system has detected an
open lid during the evaporation.
The rotor will be stopped
immediately. The lid must be
closed while the rotor is moving.
•Check the lid contacts. If
necessary, contact the aftersales service (see chapter 7.2 "Service contact")
Rotor overtemperature
•The maximum permissible rotor
temperature has been
exceeded
•If the system does not cool
down, disconnect it immediately
from the power supply.
•Contact the after-sales service
(see chapter 7.2 - "Service
contact")
Chamber overtemperature
•The maximum permissible
chamber temperature has been
exceeded.
•If the system does not cool
down, disconnect it immediately
from the power supply.
•Contact the after-sales-service
(see chapter 7.2 - "Service
contact").
Permissible imbalance exceeded
•The rotor will be stopped
immediately, the process will
also be stopped.
– improper loading of the
rotor
– glass breakage during the
evaporation
– uneven evaporation
• Eliminate the imbalance and
restart the unit. If the error is still
present, contact the after salesservice (see chapter 7.2 "Service contact")
VSK3000 calibration error
•Incorrect calibration of the
vacuum sensor VSK3000
•The sensor must be recalibrated
(see the separate operating
manual).
7 Malfunctions and error correction
7.1 General malfunctions
7.1.1 Error messages
Malfunctions are displayed in the menu "Process & equipment info" (see
chapter 6.5.3.2 - "Process and equipment information"). A sound signal
sounds when an error message is generated.
• Eliminate the source of the problem (see the following chapters).
• Acknowledge the error messages by pressing the right-hand function
key.
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Error
Possible reason
Correction
Mains power failure
•A mains power failure will be
detected if the power supply is
interrupted under normal
conditions (run mode).
•The process will continue once
the mains power is available
again. The process times will be
reset to zero. The set control
values will be preserved.
Factory settings loaded
•All parameters are reset to the
delivery status of the system.
•The factory settings will be
loaded if the corresponding
menu command is executed in
the service menu or if an error
occurred in the parameter
memory.
Nominal rotor speed not reached
•After two minutes, the rotor has
still not reached 90% of its
nominal speed.
– set speed is too high
– drive moves sluggishly
• Check the set speed.
• When the rotor is at a standstill
and the system is switched off,
check whether the drive moves
sluggishly, by hand. Contact the
after-sales service (see chapter
7.2 - "Service contact").
Safety pressure not reached
•The safety pressure inside the
rotor chamber must be reached
within 5 minutes after the start
of an evaporation process.
•Check whether the value that
was entered for the safety
pressure is not too low.
•Check the components for any
possible leaks.
Error
Possible reason
Correction
Invalid system type
•Contact the after-sales service
(see chapter 7.2 - "Service
contact").
IO communication error 0x21
• Failure of the CDplus IO module
• Switch the system off and then
on again. If the error occurs
again, contact the after-sales
service (see chapter 7.2 "Service contact")
IO communication error 0x30
•Failure of the reading unit of the
electronic rotor system
•Switch the system off and then
on again. If the error occurs
again, contact the after-sales
service (see chapter 7.2 "Service contact")
IO communication error 0x40
•Failure of the motor control
system
•Switch the system off and then
on again. If the error occurs
again, contact the after-sales
service (see chapter 7.2 "Service contact")
IO communication error 0x41
•Failure of the imbalance
detection module
•Switch the system off and then
on again. If the error occurs
again, contact the after-sales
service (see chapter 7.2 "Service contact")
7.1.2 Process messages
7.1.3 System messages
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WARNING
• Do not actuate the emergency lid release before the rotor has stopped
and the pressure has been relieved.
• Do not use the emergency lid release to open the lid during normal
operation. Unlocked lid locks increase the risk of accidents!
1 Release string
2 Plastic screw
3 Stopper
7.1.4 Emergency lid release
In the event of a power failure, it is possible to manually open the lid of the
rotational vacuum concentrator.
• Switch off the mains power switch and disconnect the power cord from
the socket.
• Check if the rotor is at a standstill and the rotor chamber is completely
aerated.
• Pull the unit a bit over the edge of the table and jack it up (see figure
below). Ensure that the centre of gravity of the unit is still on the table. If
necessary, the unit must be secured by a second person.
• Unscrew the black plastic screw (approx. 8 mm).
Fig. 36: Loosening of the plastic screw
• Remove the stopper, e.g. with a screwdriver. The stopper is connected
to a mechanical release string (see figure).
Fig. 37: Release string with stopper and screw
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• Pull the stopper with the string vertically downwards until the lid lock
unlocks.
Fig. 38: Unlocking the lid locks
• Open the lid.
• After the emergency lid release has been used, reinstall the stopper in
the reverse order.
• Try to locate the error source and contact the service if necessary (see
chapter 7.2 - "Service contact").
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Fig. 39: Small flange and centring ring
Fig. 40: Small flange with centring ring
and small flange
Fig. 41: Attaching the clamping ring
Fig. 42: Tightened clamping ring
7.1.5 Small flange connections
Leakages are often due to improper small flange connections between the
various components and hose connections or to leakages in the valves.
• Loosen the connection and place the centring ring (with sealing ring
inside) in a centred manner between the flange connections.
• Seal the connection with the clamping ring or clamping chain by
tightening the wing nut.
• Ensure that the centring ring neither slips out of place nor gets jammed.
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NOTE
If you would like to utilise our after-sales-service, please state the type of
your RVC and its serial number.
7.2 Service contact
In the event of queries, malfunctions, or spare part enquiries:
From Germany:
Contact
Martin Christ Gefriertrocknungsanlagen GmbH
An der Unteren Söse 50
37520 Osterode (Germany)
Tel. +49 (0) 55 22 / 50 07-44 44
E-mail: [email protected]
Outside Germany:
Contact our agency in your country. All agencies are listed at
www.martinchrist.de [Sales Partners]
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CAUTION
If corrosion or other damage occurs due to improper care, the
manufacturer cannot be held liable or subject to any warranty claims.
WARNING
Take suitable precautions for your own safety if there is a risk of toxic,
radioactive, or pathogenic contamination.
8 Maintenance and service
The rotational vacuum concentrator and the accessories are subject to high
mechanical stress. Thorough maintenance performed by the user extends
the service life and prevents premature failure.
• Use soap water or other water-soluble, mild cleaning agents for
cleaning the RVC and the accessories.
• Do not use any corrosive or aggressive substances.
• Do not use solvents.
• Do not use agents with abrasive particles.
• Do not expose the RVC or its accessories to intensive UV radiation (e.g.
sunlight) or thermal stress (e.g. by heat generators).
8.1 Maintenance
8.1.1 Rotational vacuum concentrator
• Switch off the rotational vacuum concentrator via the mains power
switch and disconnect the power cord before cleaning.
• Carefully remove all product residues from the rotor chamber using a
cloth.
• If the rotational vacuum concentrator has been contaminated with toxic,
radioactive, or pathogenic substances, clean the rotor chamber
immediately with a suitable decontamination agent (depending on the
type of contamination).
• Check the safety guard of the fan (at the front of the bottom side) at
least once a year for dirt and clean it if necessary (e.g. with a vacuum
cleaner).
• Open the rotational vacuum concentrator when it is not in use so that
moisture can evaporate.
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1 Rotor chamber
2 Cap
3 Rotor shaft
DANGER
Hot surface!
Let the rotor chamber cool down to room temperature!
8.1.2 Rotor chamber
If the rotor chamber is contaminated or if glass is broken, the rotor
chamber, the rotor shaft and the rotor must be cleaned immediately in order
to prevent corrosion and damage to the ball bearings.
Cleaning of the rotor chamber
Fig. 43: Rotor chamber with rotor shaft
• Open the lid.
• Switch off the mains power switch and disconnect the power cord.
• Hold the rotor shaft and remove the cap by twisting it slightly and by
pulling it off upwards.
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4 Hexagon socket
screw
5 Thrust piece
6 Compression spring
• Remove the hexagon socket screw with the supplied hexagon socket
key (size 5.5).
Fig. 44: Removing the hexagon socket screw
• Pull the thrust piece with the compression spring vertically upwards in
order to remove it from the axle.
Fig. 45: Thrust piece and compression spring
• Pull the rotor shaft vertically upwards in order to remove it from the axle.
Fig. 46: Removing the rotor shaft
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CAUTION
Ensure that no cleaning agent or disinfectant gets into the ball bearings of
the rotor shaft as it may wash out the ball bearing grease.
This can lead to irreparable damage.
7 Rotor shaft with
magnetic coupling
8 Lower ball bearing in
the rotor shaft
9 Upper ball bearing
• Clean the lid with a disinfectant or soap water.
• Wipe the rotor chamber clean and clean it with soap water or a suitable
disinfectant.
Cleaning the rotor shaft and magnetic coupling
Fig. 47: Rotor shaft and lower ball bearing
• Remove the upper ball bearing from the rotor shaft.
Fig. 48: Rotor shaft and upper ball bearing
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7 Slotted screws
8 Magnetic coupling,
separate
• Separate the magnetic coupling from the rotor shaft. To do so, unscrew
the four slotted screws that join the magnetic coupling with the rotor
shaft.
Fig. 49: Rotor shaft and upper ball bearing
• Remove the lower ball bearing.
Fig. 50: Removal of the lower ball bearing
• Clean the rotor shaft and magnetic coupling.
• Insert a new lower ball bearing.
• Screw the magnetic coupling and rotor shaft together.
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9 Installation tool
NOTE
If the unit does not reach the necessary speed, the gap between the
magnetic coupling and rotor chamber bottom may be too wide (optimum
value: 2.4 0.3mm).
• In this case, press the rotor shaft down until it reaches the stop!
Installation of the rotor shaft
• Clean the thrust piece, compression spring, and hexagon socket key.
• Clean the cap and grease the O-ring of the cap slightly with vacuum
grease.
• Insert a new upper ball bearing.
• Attach the installation tool (order no. 169181, included in the scope of
the supply) to the rotor shaft.
Fig. 51: Positioning of the installation tool
• Push the rotor shaft together with the magnetic coupling vertically onto
the axle and push the entire group of components down with the aid of
the installation tool until it reaches the stop.
• Remove the installation tool.
• Install the thrust piece and the compression spring on the axle and
secure them in place with the hexagon socket screw with 1.5 Nm.
• Attach the cap.
• Connect the power cord and switch the RVC on via the mains power
switch.
• Perform a test run.
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CAUTION
For the care of the accessories, special safety measures must be
considered as these are measures that will ensure operational safety at
the same time.
8.1.3 Lid locks
The locking bolts of both lid locks are exposed to HCl vapours during
operation of the RVC and must be protected against corrosion by greasing
them with oil for precision engineering at least once a year.
• Open the lid.
• Switch off the mains power switch and disconnect the power cord.
• Let the RVC cool down to room temperature, if necessary.
• Put a drop of oil for precision engineering to the locking bolts of both lid
locks by inserting the oil-pen in the hook opening.
8.1.4 Accessories
Abb. 52: Hook openings of the lid lock
Chemical reactions as well as stress-corrosion (combination of oscillating
pressure and chemical reaction) can affect or destroy the metals. Barely
detectable cracks on the surface can expand and weaken the material
without any visible signs.
• Check the material regularly (at least once a month) for
– cracks
– visible damage of the surface
– pressure marks
– signs of corrosion
– other changes.
• Replace any damaged components immediately for your own safety.
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CAUTION
In the case of glass breakage, immediately remove all glass particles (e.g.
with a vacuum cleaner). Replace the rubber cushions since even thorough
cleaning will not remove all glass particles.
• Immediately rinse off the rotors or accessories if any liquids that may
cause corrosion come into contact with them.
• Clean the accessories outside the rotational vacuum concentrator once
a week or preferably after each use.
• If the rotors or accessories have been contaminated with toxic,
radioactive, or pathogenic substances, clean them immediately with a
suitable decontamination agent (depending on the type of
contamination). Take suitable precautions for your own safety if there is
a risk of toxic, radioactive, or pathogenic contamination.
8.1.4.1 Aluminium accessories
Especially aluminium parts are susceptible to corrosion.
• Acid-containing cleaning agents and alkaline cleaning agents must be
avoided.
• Grease aluminium parts at least once a week with slushing oil for the
protection against corrosion.
This essentially increases their service life and reduces susceptibility to
corrosion.
8.1.5 Glass breakage
Glass particles will damage the surface coating (e.g. anodising) of the
buckets, which will then lead to corrosion.
Glass particles in the rubber cushions of the buckets will cause glass
breakage again.
Glass particles on the pivot bearing of the load- bearing bolts prevent the
buckets and rotor blocks from swinging evenly, which will cause an
imbalance.
Glass particles in the rotor chamber will cause metal abrasion due to the
circulation. This metal dust will not only pollute the rotor chamber, rotor,
and materials to be evaporated but also damage the surfaces of the
accessories, rotors, and rotor chamber.
In order to completely remove the glass particles and metal dust from
the rotor chamber
• Grease the upper third of the rotor chamber with e.g. Vaseline.
• Then, let the rotor rotate for a few minutes at maximum speed and
atmospheric pressure. The glass and metal particles will now collect at
the greased part.
• Remove the grease with the glass and metal particles with a cloth.
• If necessary, repeat this procedure.
• Clean the rotor shaft.
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DANGER
If dangerous materials (e.g. infectious and pathogenic substances) are
used, the RVC and the accessories must be disinfected.
Accessories
Max. temp
[°C]
Min. time
[min]
Max. time
[min]
Max. cycles
Glass tubes
134-138
3
40
-
Polycarbonate tubes
115-118
30
40
20
Polypropylene tubes
115-118
30
40
30
Teflon tubes
134-138
3 5 100
Aluminium rotors
134-138
3
20
-
Aluminium accessories
134-138
3
20
-
8.2 Disinfection of the rotor chamber and accessories
• Use commercially-available disinfectants such as, for example, Incidur®,
Meliseptol®, Sagrotan®, Buraton® or Terralin® (available at chemist’s
shops or drugstores).
• The rotational vacuum concentrator and the accessories consist of
various materials. A possible incompatibility must be considered.
• Before using cleaning or decontamination agents that were not
recommended by us, contact the manufacturer to ensure that such a
procedure will not damage the rotational vacuum concentrator.
• For autoclaving, consider the continuous heat resistance of the
individual materials.
• Please contact us if you have any queries (see chapter 8.4 - "Service").
8.3 Autoclaving
The service life of the accessories essentially depends on the frequency of
autoclaving and use.
• Remove the existing O-rings so that the trapezoid notch can be reached
by the hot steam. This prevents the formation of humidity in the notch..
• Replace the accessories immediately when the parts show changes in
colour or structure or in the occurrence of leaks etc.
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DANGER
In the event of service work that requires the removal of the panels, there
is a risk of electric shock or mechanical injury. Only qualified specialist
personnel is authorised to perform this service work.
NOTE
If you would like to utilise our service, please state the type of your RVC
and its serial number.
8.4 Service
The rotational vacuum concentrator is subject to high mechanical stress. In
order to be able to withstand this high level of stress, high-quality
components were used during the production of the rotational vacuum
concentrators. Nevertheless, wear cannot be excluded and it may not be
visible from the outside.
This is why we recommend having the rotational vacuum concentrator
checked by the manufacturer during an inspection once per year in the
operating state and once every three years in the dismantled state.
Information and appointments:
In Germany:
Contact
Martin Christ Gefriertrocknungsanlagen GmbH
An der Unteren Söse 50
37520 Osterode
Tel. +49 (0) 55 22 / 50 07-44 44
E-mail: [email protected]
Outside Germany:
• Contact our agency in your country. All agencies are listed at
www.martinchrist.de [Sales Partners]
8.5 Return of defective parts
Although we exercise great care during the production of our products, it
may be necessary to return a unit or accessory to the manufacturer.
In order to ensure the quick and economical processing of returns of
freeze-dryers, rotational vacuum concentrators, spare parts, or
accessories, we require complete and extensive information concerning the
process. Please fill in the following forms completely, sign them, enclose
them with the return package, and send them together with the product to:
Martin Christ Gefriertrocknungsanlagen GmbH
An der Unteren Söse 50
37520 Osterode (Germany)
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NOTE
We will return the unit if no declaration of decontamination is provided!
NOTE
The unit must be packaged in a transport-safe manner. Please use the
original packaging, if at all possible.
If the product is dispatched to us in unsuitable packaging, you will be
charged the cost for returning it to you in new packaging.
1. Declaration of decontamination
As a certified company and due to the legal regulations for the
protection of our employees and of the environment, we are obliged to
certify the harmlessness of all incoming goods. For this purpose, we
require a declaration of decontamination.
• The form must be filled in completely and signed by authorised and
specialised personnel only.
• Affix the original form in a clearly visible manner to the outside of the
packaging.
2. Form for the return of defective parts
This form is for the product-related data. They facilitate the assignment,
and they enable the quick processing of the return. If several parts are
returned together in one packaging, please enclose a separate problem
description for every defective part.
• A detailed problem description is necessary in order to perform the
repair quickly and economically.
• Upon request, we will prepare and submit to you a cost estimate
prior to performing the repair. Please confirm such cost estimate
within 14 days. If the cost estimate has still not been confirmed after
4 weeks, we will return the unit. Please note that you must bear the
incurred costs.
The forms can be downloaded online from
www.martinchrist.de [Service] [Overhaul, repair and leak testing].
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9 Disposal
9.1 Disposal of the RVC
Martin Christ Gefriertrocknungsanlagen GmbH is a registered manufacturer
of electric and electronic devices that are solely intended for commercial
use.
• Comply with all local rules and regulations.
9.2 Disposal of the packaging
• Dispose of the packaging, after having separated the individual
materials.
• Comply with all local rules and regulations.
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Manufacturer:
Martin Christ
Gefriertrocknungsanlagen GmbH
Type:
RVC 2-18 CDplus HCl
Order number:
100246
Performance data
Temperature:
+30 °C to +60 °C
Speed:
1,500 rpm
Relative centrifugal force:
210 x g
Max. permissible imbalance:
30 g
Max. density of material at process start:
2 kg / dm3
Connection requirements
(without vacuum pump and accessories)
Electrical connection
1 x 230 V / 50/60 Hz
Protection class:
I
IP code:
11
Apparent power:
0.3 kVA
Rated current:
1.5 A
Mains fuse:
2 A F, 5 mm x 20 mm
Stop valve connection:
230 V, 50/60 Hz, 20 W max.
Physical data
Dimensions of the unit
Height:
Height with open lid:
Width:
Depth:
240 mm
410 mm
247 mm
320 mm + 30 mm vacuum connection
Dimensions of the rotor chamber
Inside diameter:
Height, inside:
180 mm
139 mm
Lid opening angle:
approx. 80°
Weight:
approx. 14 kg
Noise level according to DIN 45635:
40 dB (A)
EMC according to EN 55011:
Class B
10 Technical data
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Equipment connections
Vacuum connection:
Small flange connection DN16KF
(ISO 28403, DIN 2861)
Aeration valve:
Hose nozzle, outside diameter 5.5 mm max.
(DN3)
Mains input:
IEC C13 connector
Stop valve:
IEC C14 connector
10.1 Umgebungsbedingungen
10.1 Ambient conditions
10.1 Umgebungsbedingungen
• The figures are valid for an ambient temperature of +20°C.
• Allowable ambient temperature +10 °C to +25 °C.
• Max. humidity 80%.
10.2 Technical documentation
The technical documentation of this rotational vacuum concentrator (e.g.
circuit diagrams and the safety data sheets of the manufacturers are not
attached to this operating manual.
You can order these documents from our service department (see chapter
7.2 - "Service contact").
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11 Appendix
11.1 Rotor program
The actual rotor program can be downloaded from
www.martinchrist.de/Products/RVC [unit type].
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Vessel
Number
of
samples
Sample
volume
(ml)
Temperature
(°C)
Pump
Cooling
trap
Total
time
(min)
Water
10 ml test tube
24 9 45
MZ 2C
yes
635
10 ml test tube
24 9 60
MZ 2C
yes
510
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
330
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
270
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
215
1.5 ml Eppendorf caps
36 1 30
KnF
no
330
1.5 ml Eppendorf caps
36 1 45
KnF
no
290
1.5 ml Eppendorf caps
36 1 60
KnF
no
230
Toluol
10 ml test tube
24 9 30
MZ 2C
yes
120
C6H5CH3
10 ml test tube
24 9 45
MZ 2C
yes
91
10 ml test tube
24 9 60
MZ 2C
yes
65
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
40
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
40
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
30
Acetonitrile
10 ml test tube
24 9 30
MZ 2C
yes
120
C2H3N
10 ml test tube
24 9 45
MZ 2C
yes
100
10 ml test tube
24 9 60
MZ 2C
yes
80
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
45
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
40
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
30
1,4 Dioxane
10 ml test tube
24 9 30
MZ 2C
yes
165
C4H8O2
10 ml test tube
24 9 45
MZ 2C
yes
110
10 ml test tube
24 9 60
MZ 2C
yes
80
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
55
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
45
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
35
11.2 Overview of evaporation times
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Vessel
Number
of
samples
Sample
volume
(ml)
Temperature
(°C)
Pump
Cooling
trap
Total
time
(min)
Tert. butanol
10 ml test tube
24 9 30
MZ 2C
yes
150
C4 H10O
10 ml test tube
24 9 45
MZ 2C
yes
105
10 ml test tube
24 9 60
MZ 2C
yes
80
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
55
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
45
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
35
Methanol
10 ml test tube
24 9 30
MZ 2C
yes
160
CH3OH
10 ml test tube
24 9 45
MZ 2C
yes
130
10 ml test tube
24 9 60
MZ 2C
yes
110
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
65
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
55
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
45
Ethanol
10 ml test tube
24 9 30
MZ 2C
yes
165
C2H6O
10 ml test tube
24 9 45
MZ 2C
yes
120
10 ml test tube
24 9 60
MZ 2C
yes
105
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
60
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
50
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
40
1,2 Dichlorethane
10 ml test tube
24 9 30
MZ 2C
yes
100
C2H4Cl2
10 ml test tube
24 9 45
MZ 2C
yes
75
10 ml test tube
24 9 60
MZ 2C
yes
60
1.5 ml Eppendorf caps
36 1 30
MZ 2C
yes
45
1.5 ml Eppendorf caps
36 1 45
MZ 2C
yes
35
1.5 ml Eppendorf caps
36 1 60
MZ 2C
yes
30
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11.3 Brief operating instructions
1. Switch the system on via the mains power switch on the right side of the
unit.
2. Switch the vacuum pump and/or the cooling trap on.
3. Close the lid.
4. Starting the warm-up phase:
• Enter the set values for the warm-up phase under "menu"
"options" "timer warm-up" and "temperature warm-up". Confirm
your entries and quit the menu.
• Press the left-hand function key "mode".
• Select the "warm-up" menu and confirm.
• Open the lid when the warm-up phase has ended.
• Install the rotors and close the lid.
5. Changing the set values for time, temperature, vacuum and safety
pressure:
• Select "menu" with the right-hand function key.
• Select "change set values for manual mode" from the main menu.
• Select the set value with the aid of the up/down keys and confirm
with the right-hand function key "edit".
• Change the set value with the aid of the up/down keys and confirm
with the right-hand function key "ok".
• Quit the menu with the left-hand function key.
6. Starting the process "evaporation manual":
• Open the "mode" menu with the left-hand function key.
• Select "evaporation manual" using the up/down keys.
• Start the evaporation process by pressing the right-hand function
key "enter".
The start of the evaporation process starts the following automatic
process run:
• The rotor speed increases (direction of rotation: anti-clockwise)
• At 70% of the selected maximum speed: the aeration valve closes
automatically (to avoid boiling retardation).
• At 80% of the selected maximum speed: the stop valve opens the
connection to the vacuum pump
• Further speed increase until the preselected maximum rotor speed
is reached.
7. Interrupting an evaporation process:
• Press the left-hand function key "mode".
• Select "stop evaporation" and confirm with the right-hand function
key.
Without an interruption, the evaporation process ends after the
preselected time. The following process runs automatically:
• At maximum speed: the stop valve closes the connection to the
vacuum pump, the aeration valve opens; the rotor speed is
maintained for 30 sec (aeration phase, to avoid boiling retardation).
• The rotor decelerates until it is at a standstill. After the standstill of
the rotor the lid can be opened in order to remove the rotors.
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1 Lid lock device
2 Lid
3 Rotor chamber
4 User interface
5 Rotor shaft
6 Mains power switch
7 Name plate
8 Equipotential bonding screw
9 Connection for mains cable,
with a fuse drawer
10 Electrical connection for the
stop valve
11 Vacuum connection
12 Connection for aeration
Functional and operating elements:
Fig. 53: Total view of the RVC
Fig. 54: Rear view of the RVC
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11.4 EC declaration of conformity
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11.5 Declaration of conformity – China RoHS 2
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12 Glossary
Boiling retardation
The temperature of a liquid can rise above the boiling point without the
liquid actually starting to boil. Vibrations or shocks quickly lead to the
formation of a large gas bubble that escapes explosively from the vessel.
This phenomenon is known as boiling retardation. It occurs when neither
the liquid nor the wall of the vessel include any condensation nuclei at
which vapour bubbles might form.
Pressure increase test
The pressure increase test is used to determine whether the evaporation in
the rotor chamber is complete. During the pressure increase test, the rotor
chamber is separated from the cooling trap or vacuum pump by way of the
stop valve. The system evaluates the pressure increase that is caused by
any additionally released steam.
In order to perform the pressure increase test, limits for the pressure
increase as well as the test duration must be defined beforehand.
Relative centrifugal force
The relative centrifugal force is the acceleration that the samples are
subjected to during the rotation. The acceleration is stated as a multiple of
the mean gravitational acceleration g. It can be increased by increasing the
radius inside the rotor chamber and by increasing the speed. These three
parameters are interdependent and linked with each other via the following
formula:
Relative centrifugal force RCF = 11.18 x 10-6 x r x n2
r = radius in cm
n = speed in rpm
RCF without any dimension
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Safety pressure
Since the vacuum has a dominating influence on the product temperature,
Martin Christ Gefriertrocknungsanlagen GmbH has integrated a so-called
safety pressure function into their units in order to protect the products. If
the pressure inside the rotor chamber rises too quickly – above the safety
limit – the energy supply of the unit will be interrupted so that the
evaporation process slows down.
Fig. 55: Diagram describing the safety pressure function