Roth ROTILABO CR-DS 40 User manual

Operation Manual
ROTILABO®CR-DS 40
Rotary vane pump
Two-stage
EN

2
Reprinting or reproduction of this manual, including extracts, is not allowed without the prior written permission of Carl Roth GmbH + Co. KG.
All rights under the copyright laws are expressly reserved by Carl Roth GmbH + Co. KG. We reserve the right to make changes and amendments.
Carl Roth GmbH + Co. KG
Schoemperlenstr. 3-5, D-76185 Karlsruhe · Post office box 10 01 21, Germany
Phone: [phone] - 0 · Fax: [phone] - 149 · inf[email protected] · www.carlroth.de

3
1IMPORTANT INFORMATION .........................................4
1.1 Meaning of the Warning and Information note .....................4
1.2 General Information ..............................................................4
1.3 Target Groups .......................................................................5
1.4 Intended Use.........................................................................5
1.5 Use for an Unauthorized Purpose ........................................5
1.6 Product Standards, Safety Regulations................................5
2BASIC SAFETY INSTRUCTIONS .................................6
2.1 General Information ..............................................................6
2.2 Electricity...............................................................................6
2.3 Mechanical Systems .............................................................6
2.4 Hazardous Substances.........................................................7
2.5 High Temperatures................................................................7
3DESCRIPTION...................................................................8
3.1 Design ...................................................................................8
3.2 Area of Application................................................................8
3.3 Scope of Delivery..................................................................9
3.4 Function ................................................................................9
3.4.1 Principles of Vacuum Pump Operation.................................9
3.4.2 Working Principle of Rotary vane pumps ...........................10
3.4.3
Working Principle of Two-Stage Rotary vane pumps ...... 11-12
3.4.4 Oil Functions .......................................................................13
3.4.5 Pump Lubrication ................................................................13
3.4.6 Exhaust Filter ......................................................................13
3.4.7 Gas Ballast..........................................................................14
4TECHNICAL DATA .........................................................15
4.1 Dimensions .........................................................................15
4.2 Pumping Speed / Intake Pressure – Diagram....................15
4.3 Device Data.........................................................................16
4.4 Motor Data ..........................................................................16
4.5 Lubrication Data..................................................................17
5INSTALLATION AND OPERATION.............................18
5.1 Unpacking ...........................................................................18
5.2 Pump Mounting...................................................................18
5.3 Pump Location / Environmental Conditions........................19
5.4 General References............................................................19
5.5 Installation and Connection ................................................20
5.5.1 Connecting to the Electricity Supply ...................................21
5.5.2 Change the Voltage Setting ................................................21
5.5.3 Motor Protection..................................................................22
5.6 Starting-up...........................................................................22
5.7 Operating Temperature .......................................................23
5.8 Oil for Drawing off Oxygen..................................................23
5.9 Gas Ballast Control.............................................................24
5.10 Trap installation and maintenance ......................................24
5.11 Side Panel Fitting Port ........................................................25
5.12 Closing down.......................................................................26
5.13 Storage................................................................................26
5.14 Scrap Disposal....................................................................26
6MAINTENANCE AND SERVICING .............................27
6.1 Oil Level Control..................................................................28
6.2 Oil Colour Check.................................................................28
6.3 Oil Change ..........................................................................29
6.3.1 Draining the Oil ...................................................................29
6.3.2 Filling up with Oil.................................................................29
6.3.3 Flushing...............................................................................30
6.3.4 Frequency of Oil Changes ..................................................30
6.4 Shaft Seal Replacement .....................................................30
6.5 Major Factory Repair ..........................................................30
7TROUBLESHOOTING...............................................31-32
8OVERVIEW OF ACCESSORIES..................................33
8.1 Overview and Order Numbers............................................33
9OVERVIEW OF SPARE PARTS...................................34
9.1 Service Kit...........................................................................34
9.2 List of Spare Parts .........................................................35-37
10 WARRANTY .....................................................................38
11 EC DECLARATION.........................................................39
CONTENTS

4
IMPORTANT INFORMATION
1
1.1 Meaning of the Warning and Information notes
1.2 General Information
Take note of the warning notes which are in the following boxes:
Information which are only relevant of CE operation are marked in following boxes:
The CE sign is located on the rating plate. Observe the binding national and local regulations
when tting the pump into installations!
Note: The English version is the original version of the operation manual.
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
To reduce the risks of re or explosion, electrical shock, and the injury to persons,
read and understand all instructions included in this manual. Be familiar with the
controls and the proper usage of the equipment.
THE ROTARY VANE PUMP CONFORM TO THE FOLLOWING DIRECTIVES:
CAUTION ! / WARNING !
CAUTION !
ONLY RELEVANT
FOR CE (220-240V /
50HZ ) OPERATION
WARNING !
Hazard which may lead to serious injuries or material damage.
Hot surface which may lead to serious injuries or material damage.
ONLY RELEVANT FOR CE (220-240V / 50HZ ) OPERATION
2006/42/EG Directive on machinery
2012/19/EU Directive on waste electrical and electronic equipment
2011/65/EU Directive on the restriction of the use of certain hazardous substances
in electrical and electronic equipment

5
IMPORTANT INFORMATION 1
1.3 Target Groups
1.4 Intended Use
1.5 Use for an Unauthorized Purpose
1.6 Product Standards, Safety Regulations
This operating manual is intended for the personnel planning, operating and maintaining standard,
two-stage, Rotary vane pumps.
This group of people includes:
• Designers and tters of vacuum apparatus
•Employees working on commercial laboratory and industrial vacuum technology applications
•Service personnel for Rotary vane pumps
The personnel operating and maintaining the Rotary vane pumps must have the technical competence
required to perform the work that has to be done and understand the hazards involved. The user must
authorize the operating personnel to do the work that has to be done. The personnel must have read
and understood the complete operating manual before using the Rotary vane pumps.
The operating manual must be kept at the place of use and be available to the personnel when required.
The layout of the rotary vane pump must be appropriate for the conditions of use.
The user bears the sole responsibility for this.
The rotary vane pump may only be operated under the conditions stated:
•In the “Technical Data” chapter
•On the type plate and
• In the technical specication for the order concerned
It is forbidden to use the pump for applications deviating from the technical data stated on the type plate,
in the operating manual or the conditions stated in the supply contract, or to operate it with missing or
defective protective devices.
The ROTILABO®CR-DS 40 standard pumps are not suited for pumping liquids.
Observe the standards and regulations applying in your country when you use the rotary vane pump.
Hot surface which may lead to serious injuries or material damage.
THE ROTARY VANE PUMP MEET THE FOLLOWING PRODUCT STANDARDS:
ONLY RELEVANT
FOR CE (220-240V /
50HZ ) OPERATION
EN 60204-1 Safety of machinery - Electrical equipment of machines -
Part 1: General requirements

6
BASIC SAFETY INSTRUCTIONS
2
2.1 General Information
2.2 Electricity
2.3 Mechanical Systems
IMPORTANT SAFETY INSTRUCTIONS – SAVE THESE INSTRUCTIONS
To reduce the risks of re or explosion, electrical shock, and the injury to persons,
read and understand all instructions included in this manual.
Be familiar with the controls and the proper usage of the equipment
Solid particles in the pumping medium impair the pumping action and can lead to damage.
Prevent solid particles penetrating into the pump!
CAUTION !
CAUTION !
•Warning notices must be observed. Disregarding them may lead to damage
to health and property.
•The Rotary vane pumps must be operated by personnel who can detect impending
dangers and take action to prevent them from materializing.
•The Rotary vane pumps is intended for indoor use only.
•The manufacturer or authorized workshops will only service or maintain the rotary
vane pump if it is accompanied by a fully completed damage report.
Precise information about the contamination (also negative information if necessary)
and thorough cleaning of the rotary vane pump are legally binding parts of the contract.
•Contaminated Rotary vane pumps and their individual parts must be disposed of
in accordance with the legal regulations. The local regulations apply in foreign countries.
Please note the following when connecting to the electrical power supply system:
•The electrical power supply system must have a protective connector according to IEC 60364-4-41.
•The protective connector should not have any breaks.
•The connecting cable should not be damaged.
Improper use can lead to injuries or material damage. Observe the following instructions:
• Only operate the Rotary vane pumps with the specied ange-mounting components.
•Hazardous substances must be separated out as far as this is technically possible before
they reach the pump.
•External mechanical stresses and vibrations must not be transmitted to the pump.
Only use exible vacuum hoses for connecting Rotary vane pumps.
• The pump should not be used to suck up uids. Lay the exhaust pipe so that it slopes downwards,
so allowing condensate to ow out of the pump. Collect the condensate and dispose of it in an
environmentally compatible manner.
•Maintain a space of least 20 mm between the pump and adjacent parts in order to enable
the pump to cool.

7
BASIC SAFETY INSTRUCTIONS 2
2.4 Hazardous Substances
2.5 High Temperatures
The operating company bears the responsibility for the use of the rotary vane pump.
CAUTION !
The rotary vane pump may heat up as a result of the temperature of the gas being pumped
and through intrinsic heating. In dependence on the operation mode, the casing temperature
can reach 90 °C (motor). Prevent the following maximum permissible temperature from
being exceeded.
•+ 40 °C for the environment
The motor is protected against overload by a suitable protective device.
Hazardous substances in the gases to be pumped can cause personal injuries and property damage.
Pay attention to the warning notices for handling hazardous substances.
The local regulations apply in foreign countries.
Combustible and explosive Gases
Examine before switching on whether that can form gas combustible gas/air mixtures which can
be promoted! Consider the regulations of the guideline 1999/92/EC.
It is not permitted to pump gases that are combustible or prone to explosion.
Aggressive gases
The Rotary vane pumps are not certied according to ATEX directive 2014/34/EU.
Poisonous gases
Use a separator when pumping poisonous or harmful gases. Prevent such substances from
leaking out of the appliance or pump.
Treat these substances according to the applicable environmental protection regulations.
Test the strength and leak-tightness of the connecting lines and the connected apparatus.
Prevent environmental poisons, e.g. mercury, getting into the Rotary vane pumps.

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3DESCRIPTION
3.1 Design
3.2 Area of Application
The ROTILABO®CR-DS 40 vacuum pumps are oil-sealed, two-stage Rotary vane pumps.
The drive motor is directly ange-mounted onto the motor cover of the pump holder and
the pump shaft and the motor shaft are connected to each other by an elastic coupling.
The bearings of the interior pump body are force-fed lubricated sliding bearings.
The range of application of our oil-sealed Rotary vane pumps encompasses the entire eld of
vacuum technology, both for use in the laboratory and in industry.
The task is to create an ultimate pressure of 10-3 mbar (ultimate pressure partial 10-4 mbar):
•As a single vacuum pump
•As a fore-vacuum pump for oil diffusion pumps or as turbomolecular pumps
The rotary vane pump can evacuate containers or vacuum installations up into the high vacuum range.
1Screw-plug for oil lling
2Rotary knob for setting the gas ballast valve
3ON / OFF switch
4Voltage selector switch
5Drive motor
6Suction port
7Exhaust port
8Oil drain screw-plug
9Type plate
10 Oil inspection glass
Fig. 1 Rotary vane pump (ROTILABO®CR-DS 40)
The rotary vane pump must not be used for extracting explosive gases or vapours.
The rotary vane pump must not be operated in rooms which might contain
explosive gases.
WARNING !

9
3
DESCRIPTION
3.3 Scope of Delivery
Followed the scope of delivery for standard model numbers.
3.4 Function
3.4.1 Principles of Vacuum Pump Operation
The main purpose of a vacuum pump is to reduce the pressure in a vessel or a closed system.
The degree of pressure reduction is dependent upon the requirements of the application
and the type of vacuum pump employed.
EMEA
Description 230 V, Standard
Ordering Information ROTILABO®CR-DS 40: 1A9E.1
Factory wired for 220-240 V/50 Hz, 230 V/60 Hz
Voltage switchable Yes
Centering ring with dirt trap (DN 16 KF) 1
Centering ring (DN 16 KF) 1
Clamping ring (DN 16 KF) 2
Oil mist lter OME10/16 1
Connection ange 1
Manual (English) 1
Manual (German) 1
Manual (French) 1
1 liter vacuum oil bottle 1
Line cord (EU-plug; CEE 7/4) 1
Line cord (UK-plug; BS 1363) 1
Line cord (CH-plug; SEV 1011) 1

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3.4 Function
3.4.2 Working Principle of Rotary vane pumps
Pressure reduction in a closed system is accomplished by repeatedly removing a portion of the original
volume of gas contained in the system. Removal is performed by the action of the rotating elements of
the pump which cause a given space to be successfully enlarged and diminished. Figure 2 illustrates
a chapter through a typical stage of rotary-vane pump. Note that this gure is not intended to illustrate
exactly the internal components of the pumps; its purpose is to illustrate the general operating principles
of vacuum pumps.
The rotary action of the pump creates a hollow space of chamber (1) which expands as the pump rotates.
As the chamber expands, the pressure in the chamber decreases. As a result, gas is drawn into
the chamber due to the difference in pressure between the chamber and the inlet (4) to the chamber
(The inlet is the only place where gas can ow into the chamber).
Once the vane (3) moves past the inlet (4), it seals the inlet against the chamber (1) and the gas becomes
trapped between the vanes (2 and 3). The chamber (1) formed by the enclosed space between the
vanes then begins to decrease in volume as the rotor revolves, compressing the gas. The pressure
of the compressed gas becomes greater than atmospheric pressure.
When the vane (2) moves past the exhaust port (5) the compressed gas in the chamber is forced out
through the exhaust port. This expansion/compression cycle constitutes one complete cycle of the
pump operation. This cycle is repeated as the vane (2) passes the intake port and seals it against
the atmosphere. Therefore, two pump cycles are performed during each revolution of the pump rotor.
Fig. 2 Rotary vane pump Principle
3DESCRIPTION

11
3.4 Function
3.4.3 Working Principle of Two-Stage Rotary vane pumps (ROTILABO®CR-DS 40)
Two pump stages (fore-stage and high-stage) are arranged in series in order to improve the end pressure
and the pumping speed at lower pressures. The intake takes place in the rst stage (high-stage),
the compression and the outlet in the second stage (fore-stage).
When in operation, the intake stage is at lower pressure and the exhaust stage is at higher pressure.
Each stage contains a rotor assembly consisting of a rotor with two vanes and a stator. The two rotors
are combined on one shaft, and the two stators are combined in a common housing. The pump shaft
turns the rotors, causing the vanes in each chapter to sweep the surface of their stators. The vanes are
pressed against the stators by centrifugal force. Each stage has an exhaust valve. Gas expelled from
the rst stage exhaust passes through an inter stage port to the intake of the second stage.
The second stage compresses the gas further, then expels it from the second stage exhaust valve to
the atmosphere. The oil carried along with the gas is separated out by a lter (available accessory).
An adjustable gas ballast valve is located in the pump’s exhaust stage. The purpose of the gas ballast
is to prevent vapours condensing in the vacuum pump. A dosed quantity of air (gas ballast) can be let
into the pump body during the compression by opening the gas ballast valve. The function of the
gas ballast valve is described more in detail in chapter 3.4.7 “Gas Ballast”.
Fig. 3 Pre-stage / high stage
Outlet opening with
exhaust valve
Outlet opening with
over pressure valve Inlet opening
High stagePre-stage
3
DESCRIPTION

12
3.4.3 Working Principle of Two-Stage Rotary vane pumps (ROTILABO®CR-DS 40)
Effects of Continued Pressure Reduction
The quantity of gas in the vessel (6) is reduced with each evacuation cycle. The gas remaining in the
vessel expands to ll the vessel and consequently with each cycle the pressure in the vessel is reduced.
This is a manifestation of Boyle’s Law which states that, for a constant temperature, the volume of a body
of gas is inversely proportional to its pressure; i.e., if the volume is enlarged the pressure must be reduced.
As the amount of gas in the vessel is steadily diminished, its pressure is correspondingly reduced.
The action of the pump must therefore compress a successively smaller quantity of gas with each
cycle to something greater than atmospheric pressure in order to expel it from the pump.
At the beginning of an evacuation sequence, the compression ratio is very small.
In the rst cycle of operation the pump draws in a volume of gas at atmospheric pressure and expels it
at approximately atmospheric pressure. Since the exhaust valve is generally spring loaded to provide
a good seal, the pressure required to open it is somewhat greater than atmospheric pressure.
Ultimate Pressure
As described previously, a quantity of gas is removed from the system with each cycle of the pump.
Therefore, the pressure of the gas remaining in the system is reduced with each pump cycle. Since the
pump can remove only a small portion of the gas with each pump cycle, it is obvious that this method of
evacuation can never completely remove all the gas in the vessel. In addition to this, all the components
of the system contain minute sources of gas leakage which are impossible to seal completely against
atmospheric pressure. Outgassing of materials within the system provide additional sources of gas.
As a result, after prolonged pumping, a state of equilibrium is reached in which the gas introduced from
all the leakage sources is balanced by the ability of the pump to remove gas from the system. This state
of equilibrium is referred to as the ultimate pressure or blank off pressure of the pump and its system.
No matter how much additional pumping time is provided, no further reduction in system pressure will be
accomplished once ultimate pressure is attained.
Intake Anti-suck back Protection
When power to the pump is turned off, this device closes automatically, maintaining vacuum in the
system being evacuated, and vents the inside of the pump to atmospheric pressure.
3.4 Function
3DESCRIPTION

13
3.4 Function
3.4.4 Oil Functions
3.4.5 Pump Lubrication
To ensure efcient operation and proper maintenance, and to minimize noise and oil vapours, it is important
to use the correct type and quantity of oil. Directorr™ Premium vacuum oil has been especially developed
to have the proper viscosity, low vapour pressure, and chemical stability needed to produce peak pumping
efciency. The ultimate vacuum guarantee on Welch pumps applies only when this oil is used. Each pump
is supplied with sufcient oil for lling. Additional oil is available. See chapter 8 Overview of Accessories.
3.4.6 Exhaust Filter
Any oil-sealed vacuum pump tends to discharge oil mist from its exhaust port when the pump operates
under high-ow conditions, such as when the pump’s intake is at or near atmospheric pressure. Typically,
oil mist in the form of a white puff of “smoke” can be seen from the exhaust port when no lter is used.
Once the vacuum level and the corresponding air ow through the pump are reduced, very little, if any,
oil mist will be emitted.
An exhaust lter is recommended for any vacuum pump installation where the pump operates at high
intake pressures for a prolonged period of time. Oil droplets entrained in the pump’s exhaust are removed
by the exhaust lter element. Use of an exhaust lter typically reduces or bafes pump noise as well.
Exhaust lters are sometimes referred to as oil mist eliminators. See chapter 8 Overview of Accessories.
Vacuum pump is shipped without oil inside to prevent possible spillage during shipment.
Oil must be added prior to use!
WARNING !
The oil fulls the following functions in the vacuum pump:
•Lubricating the sliding parts, such as rotor, vane, radial shaft seals
•Sealing the moving parts against the stator wall to reduce leaks
•Conducting the heat of compression to the metal walls (cooling)
The oil transports the polluted particles and corrosive media and thus effects continuous cleaning of
the internal surfaces.
3
DESCRIPTION

14
3.4.7 Gas Ballast
Condensates could have collected in the vacuum pump if:
•The vacuum pump is new
•It has not been used for long periods
•The pump's maximum tolerance of water vapour pressure has been exceeded
When pumping condensable vapours, they may be compressed during the compression phase
above the saturated vapour pressure and condense.
This causes considerable deterioration in the vacuum pump’s performance:
•Ultimate pressure is not achieved
•Corrosion occurs
•Heavy oil contamination and formation of emulsions
The gas ballast valve can increase the pump’s water vapour tolerance. In many vacuum pump applications
the gases being pumped from a system are a combination of permanent gases and undesirable vapours
such as water vapour. Under some conditions, the vapours condense in the second stage of the pump
and contaminate the oil. The gas ballast valve reduces oil contamination by decreasing or eliminating
vapour condensation.
Vapour condensation is most likely to take place when the gas compression ratio is high, i.e. when
the pump compresses a relatively large volume of gas to a small volume. Whether or not condensation
takes place is dependent upon several factors, including the proportion of permanent gases to vapours
at the pump intake. If the gases being pumped consist entirely of vapours, condensation will denitely
occur unless the gas ballast valve is opened. The gas ballast valve adds a small amount of air at
atmospheric pressure to the gas being compressed in the second stage. This reduces the compression
required to push the gas out past the exhaust valve (less reduction in volume is required), and therefore
reduces or eliminates condensation.
When the gas ballast valve is open, the pump has to work a little harder, resulting in a slight increase
in operating temperature. The increase in temperature is small, however, and is not harmful to the pump.
Also, the pump is slightly noisier, and the pump’s ultimate pressure is somewhat reduced.
Therefore, the gas ballast valve should be kept closed when it is not needed. Note that the gas ballast
is not equally effective on all different types of chemical vapors, so it may not always eliminate
condensation completely.
Should condensate form despite actuation of the gas ballast device, the suction port must be closed
and the pump operated with gas ballast for a lengthy period (about 2 hours).
Operating with gas ballast increases the operating temperature of the vacuum pump
by 5 – 10 °C.
CAUTION !
3DESCRIPTION
3.4 Funktion

15
Fig. 4 Dimensions (in mm)
4.1 Dimensions
4.2 Pumping Speed / Intake Pressure – Diagram
A B C D E F G H I
384 mm 183 mm 30 mm 135,5 mm 184 mm 210,5 mm 90 mm 138 mm 224 mm
Fig. 5 Pumping Speed / Intake Pressure - Diagram ROTILABO®CR-DS 40
4
TECHNICAL DATA
Pumping speed (m3/h)
Pumping speed (l/min)
Intake pressure (mbar) without gas ballst
with gas ballst

16
4TECHNICAL DATA
4.3 Device Data
Parameter Unit ROTILABO®CR-DS 40
Free Air Displacement (max. pumping speed)
- @ 50Hz m3/h (l/min) 2.5 (41.7)
- @ 60Hz CFM (l/min) 1.8 (50)
Pumping speed (Ø-data 133 to 1013 mbar)
- @ 50Hz m³/h (l/min) 2.3 (38.3)
- @ 60Hz CFM (l/min) 1.6 (46.7)
Ultimate pressure (ISO 21360)
- without gas ballast partial mbar (Torr) 3×10-4 (2×10-4)
- without gas ballast total mbar (Torr) 3×10-3 (2×10-3)
- with gas ballast total mbar (Torr) 9×10-2 (7×10-2)
Max. inlet pressure bar 1
Max. outlet pressure bar 1,35
Connection flanges DN 16 KF
Ambient temperature °C 10 bis 40
Noise level (50Hz) dB(A) ≤ 50
Type of protection IP54
Oil filling ml 450
Dimensions (W/D/H) mm (inch) 380 x 138 x 235 (15.1/5.4/9.2)
Shipping Carton Dimensions (W/D/H) mm (inch) 500 x 320 x 330 (19.7/12.5/13.0)
Weight kg (lbs.) 15 (33)
Shipping Weight kg (lbs.) 18 (40)
4.4 Motor Data
Parameter Unit 115 V/230 V, 50/60-Hz version
50 Hz 60 Hz
Frequency Hz Frequency 50 Hz Frequency 60 Hz
Voltage V 220–240 115 / 230
(switchable)
Motor power kW 0.29 0.27/0.3
Nominal current A 1.5 3.0 /
1.5
Motor speed 50/60Hz U/min 1440 1720

17
4
TECHNICAL DATA
4.5 Lubrication Data
Welch Directorr™ Premium vacuum oil is a triple-distilled hydrocarbon oil using severely hydro treated
base stock. The oil is designed to resist breakdown at higher RPMs and operating temperatures of
direct-drive vacuum pumps. The hydro treating virtually eliminates aromatics and sulfur to give good
resistance to sludge and varnish formation over time in corrosive environments. Directorr™ Premium
vacuum oil enables Welch direct-drive vacuum pumps to maintain the highest vacuum performance
over time. The oil is light yellow.
CAS No. 64742-65-0
Vapour Pressure (at 25°C) 1×10-6 mbar (1×10-6 torr)
Viscosity (at 40°C) 65 cSt (305 SUS)
Specific Gravity 0.87
The technical data and operating characteristics of Rotary vane pumps are only guaranteed
if original Welch Directorr™ Premium vacuum oil is used!

18
5INSTALLATION AND OPERATION
5.1 Unpacking
Carefully unpack the rotary vane pump. Keep all paperwork and inspection tags for future reference.
Check the pump for:
•Transport damage
• Conformity with the specications of the supply contract (model, electrical supply data)
•Completeness of the delivery
Please inform us without delay if there are discrepancies between the delivery and the contractually
agreed scope of delivery, or if damage is detected. Please take note of the general terms of business
of the manufacturing rm.
In case of a claim under warranty, the device must be returned in packaging that is suitable for
protecting it during transport.
5.2 Pump Mounting
For more rigid mounting requirements the pump base can be bolted directly to a surface using
the 2 mounting holes and 2 slots featured on the base.
Fig. 7 Pump mounting

19
5.4 General References
According to its intended use the capacity of the vacuum pump depends on:
•The kind of assembly
•Accessories
•The oil used
•Additional connections
•Vacuum piping system
In addition, fail-safe operation is determined by the mode of maintenance. Elements such as valves,
lters, condensers should be provided as early as in the conception. The materials of the vacuum piping
should be selected in such a way that they will be resistant to the media to be delivered!
5.3 Pump Location / Environmental Conditions
The pump should be located in a clean and well-ventilated area and adequate space
should be provided wherever possible for routine maintenance such as oil changes.
For best performance, the pump should be located as closely as possible to its system.
Determining factors for pump location should include length and size of connections,
the number of bends, and the type of exhaust connections.
5
INSTALLATION AND OPERATION
CAUTION !
On continuous operation it’s recommended to run the pump below 10 mbar
maximum vacuum pressure.

20
5.5 Installation and Connection
1. Set the rotary vane pump on a at and horizontal surface. If more rigid mounting is required,
bolt the pump base to the surface. See chapter 5.2 Pump Mounting
2. Remove the clamping ring and the protection cap of the suction and exhaust ports
3. Attach the vacuum connection to the suction port and the exhaust pipe on the exhaust port.
The suction and pressure ports must not be connected the wrong way round by mistake
4. The pumps are factory wired for high voltage (HV) 220-240V/50Hz; 230V/60Hz.
If necessary the voltage setting can be changed to low voltage (LV) 115V/60Hz.
How to switch the mode is described in chapter 5.5.2 Change the Voltage Setting.
5. Check the AC power outlet to be sure that it is the same voltage and phase as the pump motor.
6. Recheck the oil level. If needed rell oil – see chapter 6.3.2 Filling up with Oil. Please note that
the pump are delivered without oil lling. Initial oil lling has to be done by the user.
7. Connect the rotary vane pump to the electrical supply. Please note the explanations on
chapter 5.5.1 Connecting to the Electricity Supply.
8. How to operate the pump see chapter 5.6 Starting-up.
5INSTALLATION AND OPERATION
WARNING !
Never block or impede air ow from the exhaust port. High pressure can build up
within the oil reservoir if the exhaust port is blocked. Check frequently, especially if
exhaust is piped out of the building.
WARNING !
Consider the warning reference on the terminal box of the motor!