VACUUBRAND PC 620NT User Manual
page 1 of 63
Technology for Vacuum Systems
Instructions for use
PC 510 NT / PC 511 NT / PC 520 NT
PC 610 NT / PC 611 NT / PC 620 NT
Chemistry pumping unit
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 2 of 63
Dear customer,
Your VACUUBRAND diaphragm pumps should support you for many years without trouble and with
optimal performance. Thanks to our long practical experience we have much information and advice
on how you can achieve powerful application usage and personal safety through our products. Please
read these instructions for use before the initial operation of your pump. VACUUBRAND diaphragm
pumps are the result of many years of experience in design and construction and practical operation of
these pumps combined with the latest developments in material and manufacturing technology.
Our quality maxim is the „zero fault principle“: Every diaphragm pump leaving our company, is tested
intensively including an endurance run of 18 hours. Therefore faults, even those which occur rarely,
are identied and can be eliminated immediately. The achievement of the specications after the endurance run is tested for every pump.
Every VACUUBRAND pump achieves the specications.
We are committed to providing our customers with this high quality standard.
We know that the vacuum pump cannot replace all of your real work and hope that our products contribute to an effective and trouble-free realisation of your work.
Yours VACUUBRAND GMBH + CO KG
After sales service: Contact your local dealer or call +49 9342 808-193.
NOTICE
➨ Danger! Immediate danger. Death or severe injuries as well as damage
to equipment and environment can occur.
☞ Warning! Possible danger. Severe injuries as well as damage to equip-
ment and environment can occur.
• Caution! Possible danger. Slight injuries as well as damage to equip-
ment and environment can occur.
Note. Disregarding of notes may cause damage to the product.
Caution! Hot surface!
Isolate equipment from mains before removing the cover.
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 3 of 63
Reset / Language selection
1 switch off
3 turn
2 press both
CVC 3000 V2.0
Deutsch
English
Français
Italiano
Español
Türkçe
한국어
中文
Portuguê
Ρyccкий
Polski
Nederl.
日本語
CVC 3000 V2.0
Deutsch
English
Français
Italiano
4 press
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
Español
Türkçe
한국어
中文
Portuguê
Ρyccкий
Polski
Nederl.
日本語
page 4 of 63
Contents
Reset / Language selection .....................................................................................3
Safety information! .....................................................................................................5
General information ............................................................................................................................5
Intended use .......................................................................................................................................5
Setting up and installing the equipment .............................................................................................5
Ambient conditions .............................................................................................................................6
Operating conditions ..........................................................................................................................6
Safety during operation ......................................................................................................................7
Maintenance and repair ......................................................................................................................9
Technical data ...........................................................................................................10
Technical data controller .................................................................................................................. 11
Gas inlet temperatures ....................................................................................................................12
Wetted parts ....................................................................................................................................12
Pump parts ......................................................................................................................................13
Use and operation ....................................................................................................17
Installing in a vacuum system ..........................................................................................................17
During operation ...............................................................................................................................19
Attention: Important notes regarding the use of gas ballast .............................................................20
Shutdown .........................................................................................................................................21
Vacuum Controller CVC 3000 ..........................................................................................................22
Menu guide ................................................................................................................25
Function Pump down ...............................................................................................26
Function Vac control ................................................................................................27
Function Program .....................................................................................................29
Example for use ..............................................................................................................................30
Function VACUULAN ...............................................................................................31
Examples for use ......................................................................................................32
Vacuum for ltration and suction .....................................................................................................32
Vacuum for gel dryer, drying chambers and vacuum concentrators ...................................................32
Vacuum for distillation and evaporation (e. g. rotary evaporator) .................................................... 33
Vacuum for VACUU•LAN networks .................................................................................................33
Function Conguration ............................................................................................34
Readjustment of CVC 3000 ......................................................................................35
Calibration in the factory .........................................................................................36
Interface parameters ................................................................................................36
Setting of the interface ....................................................................................................................36
Read commands ”CVC 2000” .........................................................................................................37
Write commands ”CVC 2000” .........................................................................................................38
Read commands ”CVC 3000” .........................................................................................................39
Write commands ”CVC 3000” .........................................................................................................42
Troubleshooting .......................................................................................................44
Cleaning the pressure transducer ..........................................................................47
Accessories ..............................................................................................................48
Replacing diaphragms and valves..........................................................................49
Cleaning and inspecting the pump heads .......................................................................................50
Replacing the diaphragm - PC 510/511/520 NT ..............................................................................52
Replacing the valves - PC 510/511/520 NT .....................................................................................53
Notes regarding replacing diaphragms and valves at PC 610/611/620 NT .....................................57
Cleaning and assembling components ..................................................................59
Notes on return to the factory .................................................................................60
Health and safety clearance form ...........................................................................61
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
Safety information!
General information
Read and comply with this manual before installing or operating the equipment.
NOTICE
Transport the pump at the provided handle.
Remove all packing material, remove the product from its packing-box, remove the
protective covers from the inlet and outlet ports and keep, inspect the equipment.
If the equipment is damaged, notify the supplier and the carrier in writing within three
days; state the item number of the product together with the order number and the
supplier’s invoice number. Retain all packing material for inspection.
Do not use the equipment if it is damaged.
If the equipment is not used immediately, replace the protective covers. Store the
equipment in suitable conditions.
Intended use
☞ The pump and all system parts must not be used on humans or animals.
☞ Prevent any part of the human body from coming in contact with vacuum.
☞ Ensure that the individual components are only connected, combined and oper-
ated according to their design and as indicated in the instructions for use.
☞ Comply with notes on correct vacuum and electrical connections, see section
”Use and operation”.
• The pumps are designed for ambient temperatures during operation between
+10°C and +40°C. Check the maximum temperatures especially if installing the
pump in a cabinet or a housing and make sure ventilation is adequate. Install an
external automatic ventilation system if necessary. If pumping hot process gases
make sure that the maximum permitted gas inlet temperature, which depends on
several parameters like inlet pressure or ambient temperature (see ”Technical
data”), is not exceeded.
• Particles and dust must not be aspirated.
page 5 of 63
NOTICE
Use the equipment for the intended use only, i.e. for generation, control and measurement of vacuum in vessels designed for that purpose.
Setting up and installing the equipment
➨ Equipment must be connected only to a suitably fused and protected electri-
cal supply and a suitable earth point. Failure to connect the motor to ground may
result in deadly electrical shock.
The mains cable may be tted with a moulded European IEC plug or a plug suit-
able for your local electrical supply. If the plug has been removed or has to be
removed, the cable will contain wires colour coded as follows: green or green and
yellow: earth; blue or white: neutral; brown or black: live.
☞ Due to the high compression ratio of the pump, the pressure at the outlet port
might get higher than the maximum permissible pressure compatible with the
mechanical stability of the system.
☞ Do not permit any uncontrolled pressurizing (e. g. make sure that the exhaust
pipeline cannot become blocked). If there is an exhaust isolation valve, make
sure that you cannot operate the equipment with the valve closed. Risk of burst-
ing!
☞ Always provide a free and pressureless exhaust pipeline.
☞ Max. permitted pressure at the pressure transducer: 1.5 bar (absolute).
☞ Ensure that the system design does not allow the coolant outlet pipeline to be-
come blocked.
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
NOTICE
page 6 of 63
☞ Secure coolant hoses at the hose nozzles (e.g. with hose clip) to prevent their
accidental slipping.
☞ Check the overpressure safety relief device at the exhaust waste vapour con-
denser in appropriate intervals.
☞ Avoid overpressure of more than 0.2 bar in case inert gas is connected to the
pump, the gas ballast connection or to a venting valve.
• Comply with maximum permissible pressures at inlet and outlet and pressure
differences, see section ”Technical data”. Do not operate the pump with overpressure at the inlet.
• Check that mains voltage and current conform with the equipment (see rating
plate).
• Connect pipes gas tight at inlet and outlet of the pump.
• Attention: Flexible elements tend to shrink when evacuated.
Provide a rm level platform for the equipment and check that the system to be
evacuated is mechanically stable and that all ttings and hose connections are se-
cure. Ensure a stable position of the pump without any mechanical contact except of
the pump feet. Comply with all applicable safety regulations.
Keep a distance of minimum 20 cm between fan and ambient parts (e.g. housing,
walls, ...). Check fan regularly for dust/dirt, clean if necessary to avoid a cutback of
ventilation.
NOTICE
If the equipment is brought from cold environment into a room for operation, allow
the equipment to warm up (pay attention to water condensation on cold surfaces).
The diameter of the inlet and outlet pipeline should be at least as large as the diameter of the pump connection pipelines.
Comply with all applicable and relevant safety requirements (regulations and guidelines), implement the required actions and adopt suitable safety measures.
Ambient conditions
To the best of our knowledge the equipment is in compliance with the requirements
of the applicable EC-directives and harmonized standards (see ”Declaration of conformity”) with regard to design, type and model. Directive IEC 1010 (EN 61010) gives
in detail conditions under which the equipment can be operated safely (see also IP
degree of protection).
Adopt suitable measures in case of differences, e. g. using the equipment outdoors,
installation in altitudes of more than 1000 m above mean sea level, conductive pollution or bedewing.
Pay attention to the permissible maximum ambient and gas inlet temperatures
(see ”Technical data”).
Operating conditions
➨ The pumps have no approval for operation in or for pumping of potentially
explosive atmospheres.
➨ The pumps are not suitable to pump
- unstable substances and substances which react explosively under
impact (mechanical stress) and/or when being exposed to elevated
temperatures without air,
- self inammable substances,
- substances which are inammable without air and
- explosive substances.
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
NOTICE
page 7 of 63
• The pumps are not suitable for pumping substances which may form deposits
inside the pump. Deposits and condensate in the pump may lead to increased
temperatures even to the point of excessing the maximum permitted temperatures!
• If there is a danger of formation of deposits in the pump chamber (check inlet and
outlet of the pump), inspect the pump chambers regularly and clean if necessary.
• The pumps are not suitable for pumping dust and have no approval for opera-
tion below ground.
If pumping different substances, it is recommended to purge the pump with air or
inert gas prior to changing the pumped media in order to pump out residues and to
avoid reactions of the pumped substances with each other and with the pump materials.
Take into consideration interactions and chemical reactions of the pumped me-
dia. Ensure that the materials of the wetted parts are compatible with the pumped
substances, see section ”Technical data”.
Safety during operation
➨ Adopt suitable measures to prevent the release of dangerous, toxic, explosive,
corrosive, noxious or polluting uids, vapours and gases. In case install an appropriate collecting and disposal system and take protective action for pump and
environment.
➨ The user must take suitable precautions to prevent any formation of explosive
mixtures in the expansion chamber or at the outlet. In case of e.g. a diaphragm
crack, mechanically generated sparks, hot surfaces or static electricity may ignite
these mixtures. Use inert gas for gas ballast or venting if necessary.
➨ Potentially explosive mixtures at the outlet of the pump have to be drained ap-
propriately, sucked off or diluted with inert gas to non-explosive mixtures.
☞ Pay attention to the symbol ”hot surfaces” on the equipment. Adopt suitable
measures to prevent any danger arising from the formation of hot surfaces or
electric sparks. Provide a suitable protection against contact if necessary.
☞ Pumping at high inlet pressure may lead to overpressure at the gas ballast
valve. Pumped gases or condensate might be pushed out in case the valve is
open. If an inert gas supply is connected, ensure that the inlet pipeline is not contaminated.
• Comply with applicable regulations when disposing of chemicals. Take into consideration that chemicals may be polluted.
Take adequate precautions to protect people from the effects of dangerous sub-
stances (chemicals, thermal decomposition products of uoroelastomers), wear
appropriate safety-clothing and safety glasses.
• Use only genuine spare parts and accessories. Otherwise safety and perform-
ance of the equipment as well as the electromagnetic compatibility of the equipment might be reduced.
Possibly the CE mark or the C/US conformity becomes void if not using genuine
spare parts.
• Attention: If the pressure is higher than approximately 1080 mbar the pressure
reading becomes incorrect (saturation of the pressure transducer). The display
ashes. Immediate pressure relief necessary! Risk of bursting!
• Provide appropriate protective measures (i.e precautions which allow for the re-
quirements of the respective application) even for the case of failure and malfunction.
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 8 of 63
Failure of the pump (e.g. due to power failure) or of connected components, of
parts of the supply or change of parameters must not lead to a critical or dangerous situation under any circumstances.
• In case of diaphragm cracks or leaks in the manifold pumped substances might
be released into the environment or into the pump housing or motor.
Comply especially with notes on operation and use and maintenance.
• Due to the residual leak rate of the equipment, there might be an exchange of
gas, albeit extremely slight, between the environment and the vacuum system.
Adopt suitable measures to prevent contamination of the pumped substances or
the environment.
• Attention: If Auto-Start is preselected, the process starts immediately after a
power failure without pressing any further key. It is the user’s responsibility to
ensure that no dangerous status of the system due to the automatic start-up can
occur and to provide appropriate safety measures. If necessary, the user has to
check prior to starting process control whether the option ”Auto-Start” is enabled.
• Switching of an isolation valve or a vacuum pump (in combination with a VMS
Module A) or opening of the venting valve of the controller must not lead to a critical dangerous situation under any circumstances.
NOTICE
Check liquid level in both catchpots regularly and drain condensate in time. In case,
install level sensor (see “Accessories“).
The controller is powered by a short circuit proof wide-range power supply with
integrated overload protection.
In case of overload the motor is shut down by a self-hold thermal cutout in the
winding.
Attention: Reset possible only manually. Switch off the pump or isolate the equipment from mains. Identify and eliminate the cause of failure. Wait approx. ve minutes before restarting the pump.
Attention: In case of supply voltage below 100V, the lock of the cutout might be
restricted and the pump might restart on its own after sufcient cooling down. Take
suitable precautions, if an automatic restart of the pump may lead to a critical dangerous situation.
Do not start the pump if the pressure difference between inlet and outlet port exceeds 1.1 bar at maximum.
Prevent any backpressure of gases and the backow of condensates.
Never suck liquids or dust into the pump.
The A-weighted emission sound pressure level of the pump does not exceed 70
dB(A). Measurement according to EN ISO 2151:2004 and EN ISO 3744:1995 with
standard silencer or exhaust tube at outlet.
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 9 of 63
Maintenance and repair
Wear parts have to be replaced regularly. In case of normal wear the lifetime of
the diaphragms and valves is > 10000 operating hours. Bearings have a typical
durability of 40000 h. Motor capacitors have a typical durability in the range of 10000
to 40000 h depending strongly on the operation conditions like ambient temperature,
humidity or load.
➨ Check every capacitor regularly by measuring its capacity and estimating its op-
eration time. Exchange old capacitors early enough to prevent a failure. If an
overaged motor capacitor fails it might get hot and even melt and may cause a
ame to form which could be dangerous for persons and equipment in the
vicinity. The capacitors have to be replaced by an electrician.
➨ Isolate equipment from mains and wait two minutes before starting mainte-
nance to allow the capacitors to discharge.
☞ Ensure that the pump cannot be operated accidentally. Never operate the pump
if covers or other parts of the pump are disassembled. Never operate a defective
or damaged pump.
☞ Attention: The pump might be contaminated with process chemicals which have
been pumped during operation. Ensure that the pump is decontaminated before
maintenance and take adequate precautions to protect people from the effects of
dangerous substances if contamination has occurred.
• Before starting maintenance vent the pump, isolate the pump and other components from mains and the vacuum system. Allow sufcient cooling of the pump.
Drain condensate, if applicable.
Ensure that maintenance is done only by suitably trained and supervised technicians. Ensure that the maintenance technician is familiar with the safety procedures
which relate to the products processed by the pumping system.
In order to comply with law (occupational, health and safety regulations, safety at
work law and regulations for environmental protection) vacuum pumps, components
and measuring instruments returned to the manufacturer can be repaired only when
certain procedures (see section (”Notes on return to the factory”) are followed.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
Technical data
page 10 of 63
Type
Maximum pumping speed*
50/60 Hz (ISO 21360)
Ultimate vacuum (absolute) without
gas ballast
Ultimate vacuum (absolute) with
gas ballast
Maximum permissible inlet pressure (absolute)
Maximum permissible outlet pressure (absolute)
Maximum permissible pressure
(absolute) at gas ballast valve
Permissible ambient temperature
storage / operation
Permissible relative atmospheric
moisture during operation
(no condensation)
PC 510 NT
PC 511 NT
PC 520 NT
m3/h 2.0 / 2.3 3.4 / .8
mbar 7 1.5
mbar 12 3
bar 1.1
bar
bar 1.2
°C -10 to +60 / +10 to +40
% 30 to 85
1.1
PC 610 NT
PC 611 NT
PC 620 NT
Rated motor power kW 0.18 0.25
No-load speed 50/60 Hz 50/60 Hz min
Maximum permissible range of
supply voltage ( ±10% )
Attention: Observe specications of rating plate!
Maximum rated current at:
100-115 V~ 50/60 Hz, 120 V 60 Hz
230 V~ 50/60 Hz
Device fuse slow blow fuse 6.3 A
Motor protection thermal cutout, manual reset
Degree of protection IEC 529 IP 40
Inlet hose nozzle DN 10 mm
Outlet hose nozzle DN 10 mm
Coolant connection hose nozzle DN 6-8 mm
Maximum permissible pressure of
coolant at waste vapour condenser
Permissible range of coolant temperature
-1
100-115 V~ 50/60 Hz, 120V~ 60 Hz
A
A
bar 6 (absolute)
°C -15 bis +20
3.4
1.8
1500 / 1800
230 V~ 50/60 Hz
5.7
3.0
Volume of catchpot ml 500
* Pumping speed of diaphragm pump
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 11 of 63
Type
Dimensions L x W x H approx.
PC 510 NT / PC 610 NT
PC 511 NT / PC 611 NT
PC 520 NT / PC 620 NT
Weight approx.
PC 510 NT / PC 610 NT
PC 511 NT / PC 611 NT
PC 520 NT / PC 620 NT
mm
mm
mm
kg
kg
kg
PC 510 NT
PC 511 NT
PC 520 NT
422 x 256 x 520
431 x 256 x 520
431 x 274 x 520
17.7
18.1
19.3
PC 610 NT
PC 611 NT
PC 620 NT
21.0
21.2
22.4
Technical data controller
Controller CVC 3000
Pressure transducer
Display LCD graphic display, illuminated
capacitive, absolute pressure transducer; ceramic
diaphragm (alumina), independent of gas type
Pressure units / scale (selectable) mbar, Torr or hPa
Measuring range (absolute) 1080 mbar - 0.1 mbar (810 Torr - 0.1 Torr)
Maximum control range* 1060 mbar – 1 mbar (795 Torr – 1 Torr),
Resolution 0.1 mbar
Maximum permissible pressure at pressure
transducer (absolute)
Maximum permissible temperature of gaseous
media
Measurement uncertainty (absolute) after careful
adjustment and at constant temperature
Temperature coefcient <± 0.07 mbar/K (0.05 Torr/K)
Ambient temperature range (operation) 10°C to +40°C
Ambient temperature range (storage) -10°C to +70°C
Permitted relative atmospheric moisture during
operation (no condensation)
Maximum permitted current of connected valves
(connected components)
1.5 bar (1125 Torr)
continuous operation: 40°C,
for short periods up to 80°C
<±1 mbar (0.75 Torr)
30% to 85%
4A
Venting connection hose nozzle for hose ID 4 - 5 mm
Maximum admissible pressure at venting connection 1.2 bar (900 Torr) absolute
Degree of protection according to IEC 529
(front side)
Interface RS 232 C
* The actual vacuum control range in your special application might be reduced due to ultimate vacu-
um of the pump, quantity of gas occurring etc.
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the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
IP 42
Gas inlet temperatures
page 12 of 63
Operating condition Inlet pressure
Continuous operation > 100 mbar (high gas load) +10°C to +40°C
Continuous operation < 100 mbar (low gas load) 0°C to +60°C
Short-time (< 5 minutes) < 100 mbar (low gas load) -10°C to +80°C
Permitted range of gas
temperatures at inlet
Wetted parts
Components Wetted materials
Pump
Head cover ETFE carbon bre reinforced
Diaphragm clamping disc ETFE carbon bre reinforced
Diaphragm PTFE
Valves FFKM
O-rings FPM
Valve head
Gas ballast tube PTFE carbon reinforced
Pumping unit
Inlet pumping unit PBT or PP
Outlet pumping unit PET
Distribution head PPS glass bre reinforced
Valve block PP
Tubing PTFE
Screw-in ttings ETFE/ECTFE
O-ring at the catchpot FPM
Overpressure safety relief device at exhaust
vapour condenser
Exhaust waste vapour condenser / catchpot Borsilicate glass
CVC 3000
Sensor Aluminium oxide ceramic
Sensor housing PPS / glass bre
ECTFE carbon bre reinforced
Silicone rubber / PTFE foil
Sensor seal Chemically resistant uoroelastomer
Venting valve seal FPM
We reserve the right for technical modications without prior note!
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
Pump parts
page 13 of 63
Position Bezeichnung
1 Inlet
2 Outlet
3 Gas ballast valve
4 ON/OFF switch
5 Mains connection
6 Handle
7 Pump rating plate
8 Controller CVC 3000
9 Catchpot
10 Exhaust waste vapour condenser
We reserve the right for technical modication without prior notice!
Position Bezeichnung
11 Overpressure safety relief device
12 Coolant inlet
13 Coolant outlet
14 Flow control diaphragm
15 In-line valve
16 Valve block
17 Distribution head
18 Fan
PC 510 NT
2
13
12
10
6
11
9
8
3
7
15
1
4
5
18
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
17
PC 511 NT
2
13
12
page 14 of 63
8
10
6
14
3
7
1
11
15
4
9
5
16
18
PC 520 NT
2
13
12
6
15
11
9
10
for upper vacuum
8
connection
for lower vacuum
8
connection
3
7
1
4
5
16
18
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 15 of 63
PC 610 NT
2
13
12
6
11
9
8
7
10
3
15
1
4
5
17
18
PC 611 NT
2
13
12
10
6
14
11
15
9
8
7
3
1
4
5
16
18
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 16 of 63
PC 620 NT
2
13
12
6
15
11
9
10
for upper vacuum
8
connection
for lower vacuum
8
connection
7
3
1
4
5
16
18
Rear side CVC 3000
bushes for connection of
VACUU•BUS components
(e.g. coolant valve)
connection
power supply
venting connection
serial interface
RS 232 C
rating plate
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
vacuum connection
page 17 of 63
Use and operation
When switching on the controller CVC 3000 for the very rst time, a menu to select the language of the
controller menu is displayed. Select the desired language (e.g. ”English”) by turning the selection knob
and press to conrm. Then select the pressure unit (”mbar”, ”Torr” or ”hPa”) in the same way.
It is possible to access the language selection menu at any time by switching on the controller
while keeping the selection knob pressed.
Installing in a vacuum system
• Connection lines at the pump inlet have to be gas tight. Particles and dust must
not be aspirated, the user has to provide appropriate lters if necessary. The user
must ensure their suitability concerning gas ow, chemical resistance and safe-
ness against clogging prior to use.
• Connect an exhaust line gas tight at the pump outlet if necessary. Always dispose
of exhaust gases appropriately (e.g. into a fume hood). If there is risk of release of
dangerous or polluting uids, install an appropriate system to catch and dispose
of those uids.
• Reduce the transmission of vibration and prevent loading due to rigid pipelines.
Insert elastic hoses or exible elements as couplings between the pump and rigid
pipes. Attention: Flexible elements tend to shrink when evacuated.
• The exhaust line has always to be free (pressureless) to ensure an unimpeded
discharge of gas.
• Especially if the gas ballast valve is open, a power failure may cause unintentional ventilation of the pump and the vacuum system. In case this constitutes a
potential source of danger, take appropriate safety measures.
• Make sure ventilation is adequate if the pumping unit is installed in a housing or
if ambient temperature is elevated. Provide external venting if necessary. Keep a
distance of minimum 20cm between fan and ambient parts.
NOTICE
Avoid throttling losses by using connecting pipes with large diameter and keep them
as short as possible.
In case of perturbing exhaust noise connect an exhaust hose or use a silencer (see
”Accessories”).
Install outlet pipelines always falling to avoid backow of condensate towards the pump.
When assembling, ensure vacuum-tightness. After assembly, check the complete
system for leaks.
Secure hose connections at the pump appropriately against accidental detaching.
The VACUUBRAND controller CVC 3000 can only be operated with components
which are compatible to the VACUUBRAND VACUU•BUS system, see accessories.
The vacuum controller controls VACUUBRAND diaphragm pumps NT as well as optional coolant and venting valves. Connected components (e.g. venting valve, level
sensor, external pressure transducer 3000 series) are detected and congurated
automatically.
Do not use more than one controller within the same VACUU•BUS system. Several controllers in the same VACUU•BUS system will interfere with each other
and result in error messages of the connected components (pumps, valves).
The vacuum controller CVC 3000 is equipped with an integrated capacitive pressure
transducer with ceramic diaphragm to measure the actual pressure independent of
the gas type and depending on the vacuum, i. e. absolute.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
page 18 of 63
Max. permitted pressure at the pressure transducer: 1.5 bar
(absolute).
☞ The display ashes at a pressure higher than 1080 mbar.
Release pressure immediately. Risk of bursting!
☞ Inside a vacuum system where evaporation occurs (e.g.
rotary evaporator) the vacuum is not uniform, e. g. a condenser acts as pump or the vacuum in the pipeline is lower
than in the system. Therefore carefully choose position
where to connect an external gauge head (if applicable).
☞ Condensate and deposits in the pressure transducer affect the measuring result.
☞ Clean pressure transducer if necessary, see section “maintenance“.
Connection of components at the controller
At the rear side of the controller are connections for coolant
valve and/or external pressure transducer and/or external
venting valve, a venting connection and a serial interface RS
232C.
- Insert cable of components into the controller. Do not cant
when assembling or removing plug connections!
overpressure
safety relief
device
catchpot at the
outlet
catchpot at the
inlet
coolant outlet
(hose nozzle 6-8 mm)
outlet
(gas!; hose nozzle
10 mm)
coolant inlet
(hose nozzle 6-8 mm)
Separator at the inlet and exhaust waste vapour condenser
Assembling the hose nozzle with union nut at the inlet:
➨ Take the hose nozzle with attached compression ferrule and union nut out of the
round bottom ask and put onto inlet connection.
➨ Tighten the union nut by hand until you can feel the stop. Then tighten an addi-
tional 1/4 rotation with an open-ended wrench size 17 for nal installation.
Round bottom asks:
The catchpot at the inlet prevents droplets and particles from
entering the pump.
☞ Lifetimes of diaphragms and valves are enhanced.
☞ Improves vacuum in case of condensation.
Both round bottom asks are coated with a protective layer to
prevent disintegration in case of breakage or implosion.
➨ Assemble the catchpots at the inlet and at the outlet using
joint clips.
Exhaust waste vapour condenser:
➨ Assemble hose nozzles for coolant inlet and coolant outlet
pipelines at the exhaust waste vapour condenser.
The exhaust waste vapour condenser enables an efcient
condensation of the pumped vapours at the outlet.
☞ No backow of condensates.
☞ Controlled recovery of condensates.
☞ Next to 100% solvent recovery.
☞ The isolation cover protects against glass splinters in case
of breaking, acts as thermal isolation to avoid condensation of humidity and is intended to absorb shocks.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
NOTICE
page 19 of 63
Attach the pipelines of the coolant circuit to the respective hose nozzles (hose nozzles 6 mm, see image) at the waste vapour condenser. Check hose connections
prior to starting operation of the cooling system.
Secure coolant hoses at the hose nozzles (e.g. with hose clip) to prevent their accidental slipping.
• The gas outlet (hose nozzle 10 mm) must not be blocked. The exhaust pipeline has
always to be free and pressureless to enable an unhindered discharge of gases.
• If necessary connect the exhaust to a suitable treatment plant to prevent the discharge of dangerous gases and vapours to the surrounding atmosphere.
• Attention: Install hoses of the cooling system in a way to avoid ow / dropping of
condensed water onto the pumping unit (especially cables and electronic parts).
• Ensure that the coolant outlet pipeline is always free and that it cannot get
blocked.
• Maximum permissible coolant pressure at the exhaust waste vapour condenser:
6 bar (absolute)
• Comply with the maximum permissible coolant pressures of additional components in the coolant circuit (e.g coolant valve).
• Avoid overpressure in the coolant circuit (e.g. caused by blocked or squeezed
coolant hoses).
• Install a coolant valve always in the supply line of the exhaust waste vapour condenser if applicable.
NOTICE
During operation
• Maximum ambient temperature: 40 °C
• Make sure ventilation is adequate if pump is installed in a housing or if ambient
temperature is elevated.
• Potentially dangerous gases or vapours at the outlet of the pump have to be
drained and disposed appropriately.
• Due to the high compression ratio of the pumps, pressure at the outlet port might
be generated being higher than the maximum permissible pressure compatible
with the mechanical stability of the system. Ensure that the pump outlet cannot
become blocked or restricted.
If pump is installed in altitudes of more than 1000 m above mean sea level check
compatibility with applicable safety requirements, e. g. IEC 60034 (motor may over-
heat due to insufcient cooling).
Do not start the pump if the pressure at outlet port exceeds maximum 1.1 bar
(absolute). Attempts to start the pump at higher pressures may cause blockade and
damage of the motor.
Check compatibility with maximally permitted pressure at inlet and outlet.
Prevent internal condensation, transfer of liquids or dust. The diaphragm and valves
will be damaged, if liquids are pumped in signicant amounts.
Check the pump regularly for external soiling and deposits, clean if necessary to
avoid an increase of the pump‘s operating temperature.
If pumping condensable vapours (water vapour, solvents, ....), let the pump run with
gas ballast to reduce condensation in the pump.
In case of overload the motor is shut down by a self-hold thermal cutout in the
winding.
Attention: Reset possible only manually. Switch off the pump or isolate the equipment from mains. Identify and eliminate the cause of failure. Wait approx. ve minutes before restarting the pump.
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. Manual-no.: 999188 / 19/05/2009
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