Pfeiffer Vacuum HILOBE 2704 User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
HILOBE 2704 | 4504 | 6204
Roots pump

Dear Customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new roots pump should support you
in your individual application with full performance and without malfunctions. The name
Pfeiffer Vacuum stands for high-quality vacuum technology, a comprehensive and complete
range of top-quality products and first-class service. From this extensive, practical experience
we have gained a large volume of information that can contribute to efficient deployment and
to your personal safety.
In the knowledge that our product must avoid consuming work output, we trust that our
product can offer you a solution that supports you in the effective and trouble-free
implementation of your individual application.
Please read these operating instructions before putting your product into operation for the
first time. If you have any questions or suggestions, please feel free to contact info@pfeiffer-
vacuum.de.
Further operating instructions from Pfeiffer Vacuum can be found in the Download Center on
our website.
Disclaimer of liability
These operating instructions describe all models and variants of your product. Note that your
product may not be equipped with all features described in this document. Pfeiffer Vacuum
constantly adapts its products to the latest state of the art without prior notice. Please take
into account that online operating instructions can deviate from the printed operating
instructions supplied with your product.
Furthermore, Pfeiffer Vacuum assumes no responsibility or liability for damage resulting from
the use of the product that contradicts its proper use or is explicitly defined as foreseeable
misuse.
Copyright
This document is the intellectual property of Pfeiffer Vacuum and all contents of this
document are protected by copyright. They may not be copied, altered, reproduced or
published without the prior written permission of Pfeiffer Vacuum.
We reserve the right to make changes to the technical data and information in this document.
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Table of contents
1 About this manual 7
1.1 Validity 7
1.1.1 Applicable documents 7
1.1.2 Variants 7
1.2 Target group 7
1.3 Conventions 7
1.3.1 Instructions in the text 7
1.3.2 Pictographs 8
1.3.3 Stickers on the product 8
1.3.4 Abbreviations 10
2 Safety 11
2.1 General safety information 11
2.2 Safety instructions 11
2.3 Safety precautions 14
2.4 Limits of use 15
2.5 Proper use 16
2.6 Foreseeable misuse 16
2.7 Personnel qualification 16
2.7.1 Ensuring personnel qualification 16
2.7.2 Personnel qualification for maintenance and repair 17
3 Product description 18
3.1 Function 18
3.1.1 Drive 19
3.1.2 Cooling 20
3.1.3 Mounting orientations 20
3.2 Identifying the product 20
3.3 Product features 20
3.4 Scope of delivery 20
4 Transportation and Storage 21
4.1 Transporting the vacuum pump 21
4.2 Store the vacuum pump 22
5 Installation 23
5.1 Set up the vacuum pump 23
5.2 Mounting orientations 23
5.3 Filling with lubricant 24
5.4 Connecting the vacuum side 25
5.5 Use splinter shield 26
5.6 Connecting the fore-vacuum side 27
5.7 Connect the switch box 28
5.8 Connect the temperature sensors and fan 28
5.9 Implement electrical safety measures 29
5.10 Connect to mains power supply 29
6 Interfaces 31
6.1 "Remote" interface 31
6.1.1 Voltage output 31
6.1.2 Inputs 32
6.1.3 Outputs 32
6.1.4 RS-485 32
6.2 Interface RS-485 32
6.3 Pfeiffer Vacuum protocol for RS-485 interface 33
6.3.1 Telegram frame 33
6.3.2 Telegram description 34
Table of contents
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6.3.3 Telegram example 1 34
6.3.4 Telegram example 2 34
6.3.5 Data types 35
7 Parameter set 36
7.1 General 36
7.2 Control commands 36
7.3 Status requests 37
7.4 Reference value inputs 38
7.5 Additional parameter for the DCU 38
8 Operation 39
8.1 Commissioning the vacuum pump 39
8.2 Switching on the vacuum pump 39
8.3 Configuring the connections with the Pfeiffer Vacuum parameter set 39
8.4 Operating modes 40
8.4.1 Normal operation 41
8.4.2 Stand-by operation 41
8.4.3 Rotation speed setting mode 41
8.5 Operation monitoring 41
8.5.1 Operating mode display via LED 41
8.5.2 Temperature monitoring 42
8.5.3 Check the lubricant level 42
8.6 Switching off and venting 42
9 Maintenance 44
9.1 Maintenance information 44
9.2 Checklist for inspection and maintenance 44
9.3 Cleaning the air filter 46
9.4 Changing the lubricant 46
9.4.1 Draining the lubricant 47
9.4.2 Filling with lubricant 47
10 Decommissioning 49
10.1 Shutting down for longer periods 49
10.2 Recommissioning 49
11 Recycling and disposal 50
11.1 General disposal information 50
11.2 Dispose of HiLobe roots pumps 50
12 Malfunctions 51
12.1 General 51
12.2 Troubleshooting 51
12.3 Error codes 52
12.4 Warning and error messages when operating with DCU 53
13 Service solutions by Pfeiffer Vacuum 54
14 Ordering spare part packages 56
15 Accessories 57
15.1 Accessory information 57
15.2 Ordering accessories 57
16 Technical data and dimensions 58
16.1 General 58
16.2 Substances in contact with the media 58
16.3 Technical data 59
16.4 Dimensions 60
Declaration of conformity 64
Table of contents
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List of tables
Tbl. 1: Stickers on the product 9
Tbl. 2: Abbreviations used 10
Tbl. 3: Permissible ambient conditions 15
Tbl. 4: Features of the roots pumps 20
Tbl. 5: Required properties of the power supply cable 30
Tbl. 6: Plug arrangement of the D-Sub socket, 15-pin 31
Tbl. 7: Features of the RS-485 interface 33
Tbl. 8: Explanation and meaning of the parameters 36
Tbl. 9: Parameter set | Control commands 37
Tbl. 10: Parameter set | Status requests 38
Tbl. 11: Parameter set | Reference value inputs 38
Tbl. 12: Parameter for DCU functions 38
Tbl. 13: Configuration with parameters [P:019] and [P:024] 40
Tbl. 14: Configuration with parameters [P:060] and [P:061] 40
Tbl. 15: Meaning of the LEDs 42
Tbl. 16: Maintenance intervals 45
Tbl. 17: Troubleshooting 52
Tbl. 18: Error messages of the electronic drive unit 53
Tbl. 19: Warning messages of the electronic drive unit 53
Tbl. 20: Warning and error messages when using a DCU 53
Tbl. 21: HiLobe spare part packages 56
Tbl. 22: Accessories 57
Tbl. 23: Consumables 57
Tbl. 24: Conversion table: Pressure units 58
Tbl. 25: Conversion table: Units for gas throughput 58
Tbl. 26: Materials that make contact with the process media 58
Tbl. 27: Technical data HiLobe | vertical direction of flow 59
Tbl. 28: Technical data HiLobe | horizontal direction of flow 60
List of tables
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List of figures
Fig. 1: Position of stickers on product with vertical direction of flow 9
Fig. 2: Position of stickers on product with horizontal direction of flow 10
Fig. 3: Max. permissible pressure differential between input and output sides, in ac-
cordance with pump rotation speed
15
Fig. 4: Design, vertical direction of flow 18
Fig. 5: Design, horizontal direction of flow 19
Fig. 6: Design, switch box 19
Fig. 7: Transporting the vacuum pump 22
Fig. 8: Mounting orientation: Vertical direction of flow 24
Fig. 9: Mounting orientation: Horizontal direction of flow 24
Fig. 10: Filling with lubricant 25
Fig. 11: Splinter shield mounting orientation 26
Fig. 12: Connect the switch box 28
Fig. 13: Connect the extension cable 29
Fig. 14: Mains connection pin assignment 30
Fig. 15: Pin assignment of the D-Sub socket, 15-pin 31
Fig. 16: Cross-link via connection RS-485 using connection cables and accessories 33
Fig. 17: Replace the baffle strainer of the fan 46
Fig. 18: Drain the lubricant 47
Fig. 19: Filling with lubricant 48
Fig. 20: HiLobe 2704, HiLobe 4504, HiLobe 6204 61
Fig. 21: HiLobe 2704 H, HiLobe 4504 H, HiLobe 6204 H 62
Fig. 22: Electronic drive unit RC 7500 63
List of figures
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1 About this manual
IMPORTANT
Read carefully before use.
Keep the manual for future consultation.
1.1 Validity
This operating instructions is a customer document of Pfeiffer Vacuum. The operating instructions de-
scribe the functions of the named product and provide the most important information for the safe use of
the device. The description is written in accordance with the valid directives. The information in this op-
erating instructions refers to the product's current development status. The document shall remain valid
provided that the customer does not make any changes to the product.
1.1.1 Applicable documents
Document Number
Declaration of conformity A component of these instructions
You can find this document in the Pfeiffer Vacuum Download Center.
1.1.2 Variants
●HiLobe 2704
●HiLobe 4504
●HiLobe 6204
●HiLobe 2704 H
●HiLobe 4504 H
●HiLobe 6204 H
1.2 Target group
These operating instructions are aimed at all persons performing the following activities on the product:
●Transportation
●Setup (Installation)
●Usage and operation
●Decommissioning
●Maintenance and cleaning
●Storage or disposal
The work described in this document is only permitted to be performed by persons with the appropriate
technical qualifications (expert personnel) or who have received the relevant training from Pfeiffer Vac-
uum.
1.3 Conventions
1.3.1 Instructions in the text
Usage instructions in the document follow a general structure that is complete in itself. The required ac-
tion is indicated by an individual step or multi-part action steps.
Individual action step
A horizontal, solid triangle indicates the only step in an action.
►This is an individual action step.
About this manual
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Sequence of multi-part action steps
The numerical list indicates an action with multiple necessary steps.
1. Step 1
2. Step 2
3. ...
1.3.2 Pictographs
Pictographs used in the document indicate useful information.
Note
Tip
Qr code is linked to further online information.
We recommend viewing on a tablet computer.
Pay attention to the amount of data that is generated.
1.3.3 Stickers on the product
This section describes all the stickers on the product along with their meanings.
D-35641 Asslar
Mod .: HiLobe 6204
P/N .: PP V42 401
S/N .: 12036349
Made in Germany 2020/11
IP54 Type 12
Oil: D1 3.2 l
S(N2): max. 6200 m3/h
n: max. 10500 1/min
Mass: 280 kg
Rating plate (example)
The rating plate for the vacuum pump is located on the metal
casing near the motor connection plug.
D-35641 Asslar
Mod.: RC 7500
IP 54 Type 12
P/N PP 200 075
S/N 12345637
Input 3~ 380-480 V ± 10% 50/60 Hz 23 A
Output 3~ 400 V 16.5 A 0-525 Hz
Mass 24 kg
Made in Germany 2020/11
C US
TÜV Rheinland
Rating plate of the electronic drive unit
The rating plate is located on the switch box of the electronic
drive unit.
Supply connection
use only the original supply plug
3~/PE
Mains connection
This sticker indicates that you must use the original power sup-
ply connector.
Operating instructions note
This sticker indicates that this operating instructions must be
read before performing any tasks.
Warning hot surface
This sticker warns of injuries caused by high temperatures as a
result of contact without protection during operation.
About this manual
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warranty seal
Warranty seal
The product is sealed ex-factory. Damaging or removing a war-
ranty seal results in loss of the warranty.
Oil can
The "Oil can" icon indicates the lubricant filler screws.
Tbl. 1: Stickers on the product
7
12
6
5
3
4
Fig. 1: Position of stickers on product with vertical direction of flow
1 Warranty seal 5 Warning notice: hot surface
2 Rating plate of the electronic drive unit 6 Note: Read the operating instructions
3 Note: Original power supply plug (not shown in fig.) 7 Rating plate of the vacuum pump
4 Note: Filling ports for lubricant
About this manual
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12
3
7
65
4
Fig. 2: Position of stickers on product with horizontal direction of flow
1 Warranty seal 5 Warning notice: hot surface
2 Rating plate of the electronic drive unit 6 Note: Read the operating instructions
3 Note: Original power supply plug (not shown in fig.) 7 Note: Filling ports for lubricant
4 Rating plate of the vacuum pump
1.3.4 Abbreviations
Abbreviation Explanation
DCU Display Control Unit
HPU Handheld Programming Unit
[P:xxx] Electronic drive unit control parameters. Printed in bold as a three-digit number in
square brackets. Frequently displayed in conjunction with a short description:
Example: [P:xxx] Software version
PE Protective earth (earthed conductor)
n.c. not connected
RS-485 Standard for a physical interface for asynchronous serial data transmission (Recom-
mended Standard)
remote 15-pin D-Sub connecting socket on the control panel of the switch box
Ssc Short-circuit capacity
FKM Fluoropolymer rubber
FC Frequency converter
OI Operating instructions
SI Service instructions
PV Pfeiffer Vacuum
Tbl. 2: Abbreviations used
About this manual
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2 Safety
2.1 General safety information
The following 4 risk levels and 1 information level are taken into account in this document.
DANGER
Immediately pending danger
Indicates an immediately pending danger that will result in death or serious injury if not observed.
►Instructions to avoid the danger situation
WARNING
Potential pending danger
Indicates a pending danger that could result in death or serious injury if not observed.
►Instructions to avoid the danger situation
CAUTION
Potential pending danger
Indicates a pending danger that could result in minor injuries if not observed.
►Instructions to avoid the danger situation
NOTICE
Danger of damage to property
Is used to highlight actions that are not associated with personal injury.
►Instructions to avoid damage to property
Notes, tips or examples indicate important information about the product or about this docu-
ment.
2.2 Safety instructions
All safety instructions in this document are based on the results of the risk assessment carried out in
accordance with Machinery Directive 2006/42/EC Annex I and EN ISO 12100 Section 5. Where applica-
ble, all life cycle phases of the product were taken into account.
Risks during transport
WARNING
Risk of serious injury from swinging, toppling or falling objects
During transport, there is a risk of crushing and impact on swinging, toppling or falling objects. There
is a risk of injuries to limbs, up to and including bone fractures and head injuries.
►Secure the danger zone if necessary.
►Pay attention to the center of gravity of the load during transport.
►Ensure even movements and moderate speeds.
►Observe safe handling of the transport devices.
►Avoid sloping attachment aids.
►Never stack products.
►Wear protective equipment, e.g. safety shoes.
Safety
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Risks during installation
DANGER
Danger to life from electric shock
Touching exposed and voltage-bearing elements causes an electric shock. Improper connection of
the mains supply leads to the risk of touchable live housing parts. There is a risk to life.
►Before the installation, check that the connection leads are voltage-free.
►Make sure that electrical installations are only carried out by qualified electricians.
►Provide adequate grounding for the device.
►After connection work, carry out an earthed conductor check.
DANGER
Danger to life from electric shock
When establishing the voltages that exceed the specified safety extra-low voltage (according to IEC
60449 and VDE 0100), the insulating measures will be destroyed. There is a danger to life from elec-
tric shock at the communication interfaces.
►Connect only suitable devices to the bus system.
WARNING
Risk of danger to life through missing mains disconnection device
The vacuum pump and electronic drive unit are not equipped with a mains disconnection device
(mains switch).
►Install a suitable motor protection switch.
►Obtain the power details for the setting value from the motor rating plate.
WARNING
Risk of fatal injury due to electric shock on account of incorrect installation
The device's power supply uses life-threatening voltages. Unsafe or improper installation can lead to
life-threatening situations from electric shocks obtained from working with or on the unit.
►Ensure safe integration into an emergency off safety circuit.
►Do not carry out your own conversions or modifications on the unit.
WARNING
Risk of crushing from rotating parts
Fingers and hands may be caught by rotating pistons within the connection flange. This results in se-
vere injuries.
►Keep limbs out of the reach of the roots pump.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
►Route the exhaust line without shut-off units.
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
Safety
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CAUTION
Electric shock and damage to the vacuum pump and electronic drive unit due to improper
connection and disconnection of components
With existing power supply connection to the switch box, there is a risk of electric shock when making
contact with the motor connecting plug. Even after the power supply has been switched off, the vac-
uum pump continues to deliver electrical energy during its run-down period. If the units are discon-
nected prematurely, there is the risk of electric shock, and destruction of electric components.
►Always interrupt the power supply connection at the switch box before connecting the power sup-
ply plug to the motor.
►With existing power supply connection to the switch box or when the pistons are running, never
disconnect the motor connecting plug.
►After switching off, wait at least another 5 minutes until the capacitors have discharged before
separating the cable connection.
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C. If access to the vacuum pump is unrestricted, there is a danger of burns
due to contact with hot surfaces.
►Install suitable touch protection if the vacuum pump is accessible to untrained persons.
►Allow the vacuum pump to cool down before carrying out any work.
►Contact Pfeiffer Vacuum for suitable touch protection in system solutions.
Risks during operation
WARNING
Danger of poisoning due to toxic process media escaping from the exhaust pipe
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. There is a risk of injury and fatality due to poisoning in processes with toxic process
media.
►Observe the pertinent regulations for handling toxic process media.
►Safely purge toxic process media via an exhaust line.
►Use appropriate filter equipment to separate toxic process media.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
►Route the exhaust line without shut-off units.
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C. If access to the vacuum pump is unrestricted, there is a danger of burns
due to contact with hot surfaces.
►Install suitable touch protection if the vacuum pump is accessible to untrained persons.
►Allow the vacuum pump to cool down before carrying out any work.
►Contact Pfeiffer Vacuum for suitable touch protection in system solutions.
Safety
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Risks during maintenance, decommissioning, disposal and in event of malfunctions
WARNING
Danger to life from electric shock during maintenance and service work
There is a danger to life from electric shock when making contact with live components that still exist
after the vacuum pump has been switched off.
►Disconnect the vacuum pump safely from the mains.
►Wait until the vacuum pump comes to a standstill (rotation speed = 0).
►After switching off the vacuum pump, wait another 5 minutes until the capacitors have dis-
charged.
WARNING
Danger to life from electric shock in the event of a fault
In the event of a fault, devices connected to the mains may be live. There is a danger to life from
electric shock when making contact with live components.
►Always keep the mains connection freely accessible so you can disconnect it at any time.
WARNING
Risk of crushing from rotating parts
Fingers and hands may be caught by rotating pistons within the connection flange. This results in se-
vere injuries.
►Keep limbs out of the reach of the roots pump.
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
►Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
►Decontaminate affected parts before carrying out maintenance work.
►Wear protective equipment.
CAUTION
Scalding from hot lubricant
Danger of scalding when draining lubricant if it comes into contact with the skin.
►Wear protective equipment.
►Use a suitable collection receptacle.
2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
●Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
Safety
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General safety precautions
►Do not expose body parts to the vacuum.
►Observe the safety and accident prevention regulations, if necessary wear personal protective
equipment.
►Check all safety measures at regular intervals.
►Always ensure a secure connection to the earthed conductor (PE), protection class I.
►During operation, make sure that plug-and-socket connections are securely fitted.
►Never operate the vacuum pump with open vacuum flange.
►Never make your own conversions or modifications to the vacuum pump.
►Before returning the vacuum pump, observe the notes in the chapter Service.
2.4 Limits of use
Parameter HiLobe
Installation location weatherproof (internal space)
Installation altitude max. 2000 m above sea level1)
Installation surface flatness horizontal, max. permissible angle of inclina-
tion: ± 3°
Ambient temperature +5 ℃ to +40 ℃
Relative humidity of air max. 85 %
Permanent intake pressure in circulation mode < 1100 hPa (abs.)
Permanent intake pressure in vacuum mode depending on max. pressure differential
Max. gas temperature, pressure side 250 °C
Loss of pumping speed for backing pump ≤ 10:1
Degree of pollution 2
Protection class I
Overvoltage category II
Permissible protection degree IP54
Type 12 according to UL 50E
Tbl. 3: Permissible ambient conditions
20
10
0
30
40
50
60
n [1/min]
3000 5000 9000 110007000
[hPa]
Δpmax
Fig. 3: Max. permissible pressure differential between input and output sides, in accordance
with pump rotation speed
1) at installation altitudes > 1,000m above m.s.l. and an ambient temperature of 40 °C the rated power of the
motor reduces by around 10 %
Safety
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2.5 Proper use
►Use the vacuum pump for vacuum generation only.
►To protect the lubricant and the bearing, use sealing gas if high boiling, corrosive or particle-laden
media (e.g. solvents) are pumped.
►Operate the vacuum pump within the application limits of the product and in compliance with the
technical data.
►Adhere to the installation, commissioning, operating, and maintenance instructions.
►Use only accessory parts recommended by Pfeiffer Vacuum.
2.6 Foreseeable misuse
Misuse of the product invalidates all warranty and liability claims. Any use that is counter to the purpose
of the product, whether intentional or unintentional, is regarded as misuse.
●Pumping of explosive media
●Pumping radioactive media
●Pumping media that can corrode or not be withstood by the vacuum pump materials
●Pumping media that introduce an ignition source to the suction chamber
●Pumping media that form adhesive deposits inside the suction chamber and cause the pistons to
touch or jam
●Pumping pressurized media (> atmospheric pressure)
●Pumping fluids that do not serve cleaning
●Pumping media prone to spontaneous, specific exothermic reactions
●Use in potentially explosive areas
●Use in systems in which the equipment is subjected to dynamic loads and vibrations or periodic
forces
●Use in strong electrical, magnetic, or electromagnetic fields
●Use with vacuum and/or fore-vacuum flange open to the atmosphere
●Modification of frequency converter parameters in the electronic drive unit
●Using lubricants not specified by Pfeiffer Vacuum
●Using pipes to lift the vacuum pump
●Use of accessories or spare parts that are not listed in these instructions
●Using the vacuum pump as a climbing aid
●Use of mineral-based lubricants, such as P3, with an oxygen concentration > 21 %
Mineral-based lubricants are combustible and ignite at high temperatures, and when they come
into contact with pure oxygen. These lubricants oxidize heavily and thus lose their lubricating ca-
pacity.
2.7 Personnel qualification
The work described in this document may only be carried out by persons who have appropriate profes-
sional qualifications and the necessary experience.
Training people
1. Train the technical personnel on the product.
2. Only let personnel to be trained work with and on the product when under the supervision of
trained personnel.
3. Only allow trained technical personnel to work with the product.
4. Before starting work, make sure that the commissioned personnel have read and understood
these operating instructions and all applicable documents, in particular the safety, maintenance
and repair information.
2.7.1 Ensuring personnel qualification
Specialist for mechanical work
Only a trained specialist may carry out mechanical work. Within the meaning of this document, special-
ists are people responsible for construction, mechanical installation, troubleshooting, and maintenance
of the product, and who have the following qualifications:
●Qualification in the mechanical field in accordance with nationally applicable regulations
●Knowledge of this documentation
Safety
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Specialist for electrical engineering work
Only a trained electrician may carry out electrical engineering work. Within the meaning of this docu-
ment, electricians are people responsible for electrical installation, commissioning, troubleshooting, and
maintenance of the product, and who have the following qualifications:
●Qualification in the electrical engineering field in accordance with nationally applicable regulations
●Knowledge of this documentation
In addition, these individuals must be familiar with applicable safety regulations and laws, as well as the
other standards, guidelines, and laws referred to in this documentation. The above individuals must
have expressly granted operational authorization, to commission, program, configure, mark, and earth
devices, systems, and circuits in accordance with safety technology standards.
Trained individuals
Only adequately trained individuals may carry out all works in other transport, storage, operation, and
disposal fields. Such training must ensure that individuals are capable of carrying out the required activi-
ties and work steps safely and properly.
2.7.2 Personnel qualification for maintenance and repair
Adequately trained individuals are:
●Maintenance level 1
─Customer with technical education
─Pfeiffer Vacuum service technician
●Maintenance level 3
─Pfeiffer Vacuum service technician
Safety
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3 Product description
3.1 Function
The operating principle of the HiLobe roots pump is based on 2 synchronous pistons that rotate in a
housing without touching. The pumping effect is produced as a result of the opposing rotation of 2 fig-
ure-of-eight shaped roots pistons. While suction chambers are formed between the rolling pistons and
the housing, the rolling pistons continuously form a mutual seal without touching each other or the hous-
ing. A pair of gears positioned on the extended shaft ends, causes the opposing, synchronous running
of the roots pistons. Lubrication is limited to the two bearing and gear chambers which are arranged
separately from the suction chambers.
Scan the QR code or click here and see how Pfeiffer Vacuum roots pumps work.
8
36
7
9
10
2
11
12
13
1
5
4
Fig. 4: Design, vertical direction of flow
1 Filler screw 8 Fore-vacuum flange
2 Vacuum flange with flange cover (foil) 9 Drain screw
3 Motor power supply plug 10 Measurement connection vacuum side
4 Filler screw 11 Measurement connection fore-vacuum side
5 Fan cover 12 Sight glass, opposite side
6 Sight glass motor side 13 Connecting cable, fan/temperature sensor
7 Connecting cable, fan/temperature sensor
Product description
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125
6
7
8
9
10
11
12
4
3
Fig. 5: Design, horizontal direction of flow
1 Filler screw 7 Connecting cable, fan/temperature sensor
2 Measurement connection vacuum side 8 Sight glass motor side
3 Motor power supply plug 9 Fan cover
4 Filler screw 10 Vacuum flange with flange cover (foil)
5 Measurement connection fore-vacuum side 11 Sight glass, opposite side
6 Fore-vacuum flange with flange cover (foil) 12 Connecting cable, fan/temperature sensor
Temp. 1
Temp. water
(optional)
Temp. exhaust
gas (optional)
Temp. 2
Fan 1
n. c.
cooling water
mon. (optional)
Fan 2
86
2
7
3
4
5
1
Fig. 6: Design, switch box
1 Switch box 5 Sensor connections
2 Operator panel 6 Motor connection
3 Fan grille, inlet 7 Mains connection
4 Underside of control cabinet 8 Fan grille, outlet
3.1.1 Drive
The drive of the vacuum pump is carried out coupling-free in "Cantilever design". Due to the motor de-
sign, the vacuum pump is compact, hermetically sealed and also has a high efficiency. The frequency
converter takes over the control of the vacuum pump and permits the adjustment of the speed to the
actual process requirements (in the valid speed range).
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3.1.2 Cooling
The vacuum pump is equipped with active sensor-monitored air cooling.
3.1.3 Mounting orientations
The vacuum pump is available in 2 versions; for either vertical or horizontal direction of flow. The
mounting orientation is defined at the factory prior to delivery. Subsequent alteration of the mounting
orientation by the user is not permissible. The oil supply is different for each version, whereby an imper-
missible mounting orientation will lead to deficient lubrication of the bearing.
3.2 Identifying the product
To ensure for a clear identification of the product when communicating with Pfeiffer Vacuum, always
keep all of the information on the rating plate to hand.
The following information is shown on the rating plate:
●Pump model
●Model number
●Type and quantity of the lubricant
●Max. allowable pump rotation speed
●Date of manufacture
●Input voltage range
3.3 Product features
Pump type Nominal pumping speed Inlet/direction of flow
HiLobe 2704 890 – 2700 m3/h top/vertical
HiLobe 4504 890 – 4440 m3/h top/vertical
HiLobe 6204 890 – 6220 m3/h top/vertical
HiLobe 2704 H 890 – 2700 m3/h lateral/horizontal
HiLobe 4504 H 890 – 4440 m3/h lateral/horizontal
HiLobe 6204 H 890 – 6220 m3/h lateral/horizontal
Tbl. 4: Features of the roots pumps
3.4 Scope of delivery
●Vacuum pump with switch box and frequency converter
●Flange cover (foil) for the connection flange
●Seal for the connection flange
●Screw kit for the connection flange
●2 ring bolts for lifting the vacuum pump
●Mating plug for the mains connection
●2 temperature sensors
●Cable set, 2 m
●Lubricant D1 (for standard pump)
●Operating instructions
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