Pfeiffer Vacuum HISCROLL 6 User manual

OPERATING INSTRUCTIONS
EN
Translation of the Original
HISCROLL 6 | 12 | 18
Scroll pump standard version | ATEX certification

Dear Customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new scroll pump is designed to
support you with its performance, perfect operation and without impacting your individual
application. 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 8
1.1 Validity 8
1.1.1 Applicable documents 8
1.1.2 Variants 8
1.2 Target group 8
1.3 Conventions 8
1.3.1 Pictographs 8
1.3.2 Instructions in the text 9
1.3.3 Stickers on the product 9
1.3.4 Abbreviations 11
2 Safety 12
2.1 General safety information 12
2.2 Safety instructions 12
2.3 Safety precautions 17
2.4 ATEX classification and safety measures 17
2.5 Limits of use of the product 19
2.6 Proper use 19
2.7 Foreseeable improper use 19
2.8 Personnel qualification 20
2.8.1 Ensuring personnel qualification 20
2.8.2 Personnel qualification for maintenance and repair 20
2.8.3 Advanced training with Pfeiffer Vacuum 21
3 Product description 22
3.1 Function 22
3.1.1 Drive 23
3.1.2 Cooling 23
3.1.3 Shaft bearing 23
3.1.4 Gas ballast 23
3.1.5 Pressure sensor 23
3.2 Connections 24
3.3 Identifying the product 24
3.4 Product features 24
3.5 Scope of delivery 24
4 Transportation and Storage 25
4.1 Transporting vacuum pump 25
4.2 Storing the vacuum pump 26
5 Installation 27
5.1 Set up the vacuum pump 27
5.2 Connecting vacuum side 27
5.3 Connecting the exhaust side 28
5.4 Connecting gas ballast external supply 29
5.5 Connecting to mains power supply 30
6 Interfaces 32
6.1 Interface overview 32
6.2 "Remote" interface 32
6.2.1 Inputs 33
6.2.2 Outputs 33
6.2.3 RS-485 34
6.3 Connecting control unit 34
6.4 Using RS-485 interface 34
6.5 Pfeiffer Vacuum protocol for RS-485 interface 35
6.5.1 Telegram frame 35
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6.5.2 Telegram description 36
6.5.3 Telegram example 1 36
6.5.4 Telegram example 2 36
6.5.5 Data types 37
7 Parameter set 38
7.1 General 38
7.2 Control commands 38
7.3 Status requests 40
7.4 Reference value inputs 40
8 Operation 42
8.1 Commissioning vacuum pump 42
8.2 Switch vacuum pump on 42
8.3 Configuring the connections with the Pfeiffer Vacuum parameter set 42
8.3.1 Configuring the digital outputs 43
8.3.2 Configuring the digital input 43
8.3.3 Selecting the interfaces 43
8.3.4 Configuring accessories 43
8.4 Selecting operating mode 44
8.5 Speed modes 44
8.5.1 Normal operation 45
8.5.2 Standby mode 45
8.5.3 Speed actuator operation 45
8.5.4 Auto boost 46
8.5.5 Auto standby 46
8.6 Pressure regulation operation 47
8.7 Determining effective pressure with calibration factors 47
8.8 Operating with gas ballast 48
8.8.1 Controlling gas ballast valve with a pressure sensor 50
8.8.2 Controlling gas ballast valve without a pressure sensor 50
8.9 Operating mode display via LED 51
8.10 Switching off vacuum pump 51
9 Maintenance 53
9.1 Maintenance information 53
9.2 Checklist for inspection and maintenance 54
9.3 Replacing the non-return valve on the exhaust side 54
9.3.1 Removing the non-return valve 55
9.3.2 Installing the non-return valve 55
9.4 Replacing the gas ballast valve 56
9.4.1 Removing gas ballast valve 56
9.4.2 Installing gas ballast valve 57
9.5 Changing the tip seal 58
9.5.1 Disassembling the spiral housing 58
9.5.2 Replacing the tip seal 60
9.5.3 Assembling the pump housing 62
9.6 Final inspection 63
10 Decommissioning 64
10.1 Shutting down for longer periods 64
10.2 Recommissioning 64
11 Recycling and disposal 65
11.1 General disposal information 65
11.2 Disposing of the scroll pump 65
12 Malfunctions 66
12.1 General 66
12.2 Error codes 67
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13 Service solutions by Pfeiffer Vacuum 69
14 Spare parts 71
15 Accessories 73
15.1 Accessory information 73
15.2 Ordering accessories 73
16 Technical data and dimensions 75
16.1 General 75
16.2 Technical data 75
16.3 Substances in contact with the media 78
16.4 Dimensions 79
Declaration of Conformity 81
UK Declaration of Conformity 82
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List of tables
Tbl. 1: Stickers on the product 10
Tbl. 2: Abbreviations used 11
Tbl. 3: General ATEX designations 18
Tbl. 4: Permissible ambient conditions 19
Tbl. 5: Interfaces of the electronic drive unit 24
Tbl. 6: Features of scroll pumps 24
Tbl. 7: Connection assignment of 15-pin "remote" connection 33
Tbl. 8: Features of the RS-485 interface 34
Tbl. 9: Explanation and meaning of the parameters 38
Tbl. 10: Control commands 39
Tbl. 11: Status requests 40
Tbl. 12: Reference value inputs 41
Tbl. 13: Configure parameters [P:019] and [P:024] 43
Tbl. 14: Configure parameter [P:063] 43
Tbl. 15: Parameter [P:060] 43
Tbl. 16: Calibration factors for the pressure range < 1 hPa 47
Tbl. 17: HiScroll gas ballast valve switch settings 49
Tbl. 18: Behavior and meaning of the LEDS of the electronic drive unit 51
Tbl. 19: Behavior and meaning of the LED standby 51
Tbl. 20: Maintenance intervals 54
Tbl. 21: Troubleshooting with scroll pumps 67
Tbl. 22: Error messages of the electronic drive unit 68
Tbl. 23: Warning messages of the electronic drive unit 68
Tbl. 24: Spare part package 71
Tbl. 25: Spare part package 72
Tbl. 26: Accessories for HiScroll 74
Tbl. 27: Conversion table: Pressure units 75
Tbl. 28: Conversion table: Units for gas throughput 75
Tbl. 29: Technical data for HiScroll 6 76
Tbl. 30: Technical data for HiScroll 12 77
Tbl. 31: Technical data for HiScroll 18 78
Tbl. 32: Materials that make contact with the process media 78
List of tables
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List of figures
Fig. 1: Position of the stickers on the product 10
Fig. 2: Schematic compression cycle of scroll pumps 22
Fig. 3: HiScroll design 23
Fig. 4: Slinging points for transport of the scroll pump 25
Fig. 5: Minimum clearances and permissible inclination 27
Fig. 6: Example of vacuum connection 28
Fig. 7: Example of exhaust connection 29
Fig. 8: Connecting gas ballast external supply 30
Fig. 9: Connecting to mains power supply 31
Fig. 10: Interfaces of the electronic drive unit 32
Fig. 11: Connection diagram of 15-pin "remote" connection 32
Fig. 12: Connecting a control unit via the "remote" connection 34
Fig. 13: Cross-link via connection RS-485 using connection cables and accessories 35
Fig. 14: Accessory connector assignment 44
Fig. 15: Speed modes 45
Fig. 16: Displayed pressure 48
Fig. 17: Pressure-dependent gas ballast valve control in automatic mode 50
Fig. 18: Gas ballast valve control in automatic mode 50
Fig. 19: Removing valve 55
Fig. 20: Installing valve 55
Fig. 21: Removing gas ballast valve 56
Fig. 22: Removing gas ballast valve 57
Fig. 23: Assemble gas ballast valve 57
Fig. 24: Installing gas ballast valve 58
Fig. 25: Loosening the fan cover on the scroll pump 59
Fig. 26: Removing the fan cover from the scroll pump 59
Fig. 27: Removing the scroll pump spiral housing 60
Fig. 28: Replacing the tip seal on the scroll pump 61
Fig. 29: Tip seal nut in the spiral housing 61
Fig. 30: Assembling the housing parts 62
Fig. 31: HiScroll maintenance kit 1 71
Fig. 32: HiScroll valve set 72
Fig. 33: HiScroll 6 79
Fig. 34: HiScroll 12 | HiScroll 18 80
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
Operating instructions for gas ballast valve, automated PU 0104 BN
Declaration of conformity A component of these instructions
You can find this document in the Pfeiffer Vacuum Download Center.
1.1.2 Variants
●HiScroll 6, Scroll pump, standard, including ATEX
●HiScroll 6, Scroll pump, without GB, including ATEX
●HiScroll 6, scroll pump, with automated GB
●HiScroll 12, Scroll pump, standard, including ATEX
●HiScroll 12, Scroll pump, without GB, including ATEX
●HiScroll 12, scroll pump, with automated GB
●HiScroll 18, Scroll pump, standard, including ATEX
●HiScroll 18, Scroll pump, without GB, including ATEX
●HiScroll 18, scroll pump, with automated GB
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 Pictographs
Pictographs used in the document indicate useful information.
About this manual
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Note
Tip
1.3.2 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.
Sequence of multi-part action steps
The numerical list indicates an action with multiple necessary steps.
1. Step 1
2. Step 2
3. ...
1.3.3 Stickers on the product
This section describes all the stickers on the product along with their meanings.
C US
TÜV Rheinland
UL/CSA 61010-1
IP20
Mod. HiScroll 6
P/N PD S10 000
S/N - - - - - - - -
Made in Germany 2022/07
S(N2)max. 6.1 m3/h
Mass 19 kg
nmax. 3000 1/min
100-127 VAC ±10% 50/60 Hz 4.0 A
200-240 VAC ±10% 50/60 Hz 2.0 A
SCCR: 500 A @ 250 VAC,
10 kA @ 125 VAC
D-35614 Asslar Berliner Str. 43
II 3/-G Ex h IIC T4 Gc X
+5 °C T +40 °C
a
≤ ≤
Rating plate, HiScroll 6
The rating plate is located clearly visible on a longitudinal side of
the vacuum pump.
C US
TÜV Rheinland
UL/CSA 61010-1
IP20
R-R-2XD-PV-
HiScroll12
Mod. HiScroll 12
P/N PD S20 000
S/N - - - - - - - -
Made in Germany 2022/07
S(N2)max. 12.1 m3/h
Mass 24 kg
nmax. 1870 1/min
100-127 VAC ±10% 50/60 Hz 8.0 A
200-240 VAC ±10% 50/60 Hz 4.0 A
SCCR: 500 A @ 250 VAC,
10 kA @ 125 VAC
D-35614 Asslar Berliner Str. 43
II 3/-G Ex h IIC T4 Gc X
+5 °C T +40 °C
a
≤ ≤
Rating plate, HiScroll 12
The rating plate is located clearly visible on a longitudinal side of
the vacuum pump.
About this manual
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C US
TÜV Rheinland
UL/CSA 61010-1
IP20
Mod. HiScroll 18
P/N PD S30 000
S/N - - - - - - - -
Made in Germany 2022/07
S(N2)max. 18.1 m3/h
Mass 23 kg
nmax. 1870 1/min
100-127 VAC ±10% 50/60 Hz 10.0 A
200-240 VAC ±10% 50/60 Hz 6.0 A
SCCR: 500 A @ 250 VAC,
10 kA @ 125 VAC
D-35614 Asslar Berliner Str. 43
II 3/-G Ex h IIC T4 Gc X
+5 °C T +40 °C
a
≤ ≤
Rating plate, HiScroll 18
The rating plate is located clearly visible on a longitudinal side of
the vacuum pump.
Warning hot surface
This sticker warns of injuries caused by high temperatures as a
result of contact without protection during operation.
Operating instructions note
This sticker indicates that this operating instructions must be
read before performing any tasks.
warranty seal
Warranty seal
The product is sealed ex factory. Damaging or removing a war-
ranty seal results in loss of the warranty.
Tbl. 1: Stickers on the product
1
3
4
2
Fig. 1: Position of the stickers on the product
1Note: Read the operating instructions
2Rating plate
3Hot surface warning sign
4Warranty seal
About this manual
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1.3.4 Abbreviations
Abbreviation Explanation
ATEX ATmosphères EXplosibles
ATM Atmospheric pressure
OI Operating instructions
fRotation speed value of a vacuum pump (frequency, in rpm or Hz)
FKM Fluorinated rubber
GB Gas ballast
HV High vacuum
[P:xxx] Parameters are printed in bold as three-digit numbers in square brackets. Example:
[P:xxx] Software version
PC Personal computer
PTFE Polytetrafluoroethylene
RCD Residual Current Device
RPT Digital pressure sensor (RPT 010)
RS-485 Standard for a physical interface for asynchronous serial data transmission (Recom-
mended Standard)
SI Service instructions
SCCR Short Circuit Current Rating
USB Universal Serial Bus
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
Inadequate or incorrect grounding of the unit leads to contact-sensitive voltage on the housing. When
making contact, increased leakage currents will cause a life-threatening electric shock.
►Before the installation, check that the connection leads are voltage-free.
►Conduct the electrical connection in accordance with locally applicable regulations.
►Make sure that the local mains voltage and frequency match rating plate specifications.
►Make sure that the mains cable and extension cable meet the requirements for double isolation
between input voltage and output voltage, in accordance with IEC 61010 and IEC 60950.
►Use only a 3-pin mains cable and extension cable with properly connected protective earthing
(earthed conductor).
►Plug the mains plug into a socket with earthing contact only.
►Always connect the mains cable prior to all other cables, to ensure continuous protective earth-
ing.
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
Explosion hazard when using accessories outside the limits of use
When using accessories, there is a risk of an ignition source forming that could potentially result in an
explosion when pumping explosive gases.
►When pumping explosive media, use only accessories that comply with the requirements of Di-
rective 2014/34/EU.
WARNING
Explosion hazard if particles enter the vacuum connection
During commissioning, there is a risk of foreign particles entering the vacuum chamber, forming a
source of ignition, and potentially resulting in an explosion in combination with explosive gases.
►Use a suitable protective strainer at the vacuum connection.
►Do not remove the strainer until you are sure that no solid particles can enter the vacuum pump.
WARNING
Explosion hazard if particles enter at the gas ballast valve
When connecting the gas ballast line, there is a risk of foreign particles entering, which may cause an
exothermic reaction if the material pairing in the suction chamber is unfavorable.
►When connecting the external gas ballast supply, ensure that the gas ballast valve is closed.
►Clean the inlet area of the gas ballast valve by activating the gas supply with slight overpressure
when the valve is closed.
WARNING
Risk of injury from reactive, potentially explosive or otherwise hazardous gas/air mixtures
Uncontrolled gas inlet of air or gases containing oxygen may lead to the formation of potentially ex-
plosive gas/air mixtures in the vacuum system. Ignition can cause very serious injuries.
►Use inert gases only for the supply of ballast gas in order to prevent the formation of a potentially
explosive atmosphere.
►Ensure a closed inert gas system in order to avoid zone entrainment as a result of process gas
entering into the inert gas line.
Safety
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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 fatal injury due to electric shock caused by water damage
The device meets protection degree IP 20 according to EN 60529: 2014 and is not protected against
water ingress. Vacuum pumps operated on the floor lead to leakage current in penetrating and sur-
rounding water. There is a danger to life from electric shock when making contact with live water.
►In case of water damage, disconnect the complete power supply from the area affected.
►Provide an on-site electrical fuse protection (e.g. RCD) in hazardous areas.
►When selecting the installation location, observe potential damage from water.
WARNING
Danger to life from poisoning where toxic process gases leak with no exhaust line
During normal operation, the vacuum pump expels exhaust gases and vapors freely into the air. In
processes involving toxic media, there is a risk of injury and danger to life due to poisoning.
►Observe the relevant regulations for handling toxic substances.
►Safely purge toxic process gases via an exhaust line.
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.
►Open shut-off units immediately before or at the same time as starting the pump.
►Observe the maximum permissible pressure of 1,500 hPa (absolute).
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
Risks during operation
WARNING
Risk of explosion in the medium to be pumped as a result of increased pressure
With installation on the exhaust side, there is a risk of the exhaust pressure of the vacuum pump ex-
ceeding the atmospheric conditions. The ignition temperature of the medium to be pumped is lowered
in the suction chamber. If the ignition temperature of the medium to be pumped falls below a temper-
ature of T4 = +135°C, there is a risk of explosion, and consequently serious injury.
►Ensure that the ignition temperature of the medium to be pumped is maintained above a temper-
ature of +135 °C at 3500 hPa abs.
WARNING
Risk of injury from reactive, potentially explosive or otherwise hazardous gas/air mixtures
Uncontrolled gas inlet of air or gases containing oxygen may lead to the formation of potentially ex-
plosive gas/air mixtures in the vacuum system. Ignition can cause very serious injuries.
►Use inert gases only for the supply of ballast gas in order to prevent the formation of a potentially
explosive atmosphere.
►Ensure a closed inert gas system in order to avoid zone entrainment as a result of process gas
entering into the inert gas line.
Safety
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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.
WARNING
Risk of poisoning from incorrect use of the gas ballast system
The gas ballast system of the scroll pump is vacuum sealed only when used in valid, snapped posi-
tions "0", "1" and "2". When operating the valves in intermediate stages, there is a risk that process
media can escape to the environment uncontrolled. When using toxic process media, there is a risk
of poisoning.
►Change the positions of the valve only for setting the gas ballast stages.
►Operate the gas ballast valve only in the snap positions.
WARNING
Mortal danger from electric shock during operation caused by transport damage
Damage to the transport packaging may favor the ingress of moisture or electrically conductive media
into the vacuum pump. Devices connected to the mains may still be live. There is a danger to life
from electric shock when making contact with live components.
►Before commissioning, convince yourself of the trouble-free state of your vacuum pump.
►Pay attention to residues of fluids or condensate.
►Do not put the vacuum pump into operation if there is obvious external damage.
WARNING
Risk of fatal injury due to electric shock caused by water damage
The device meets protection degree IP 20 according to EN 60529: 2014 and is not protected against
water ingress. Vacuum pumps operated on the floor lead to leakage current in penetrating and sur-
rounding water. There is a danger to life from electric shock when making contact with live water.
►In case of water damage, disconnect the complete power supply from the area affected.
►Provide an on-site electrical fuse protection (e.g. RCD) in hazardous areas.
►When selecting the installation location, observe potential damage from water.
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.
►Open shut-off units immediately before or at the same time as starting the pump.
►Observe the maximum permissible pressure of 1,500 hPa (absolute).
►Observe the permissible pressures and pressure differentials for the product.
►Check the function of the exhaust line on a regular basis.
CAUTION
Risk of injury from burns where hot process gases leak with no exhaust line
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. For processes with high temperatures, there is a risk of burns on hot exhaust gas-
es.
►If necessary, safely purge hot process gases via an exhaust line.
►Wear personal protective equipment if necessary.
Safety
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Risks during maintenance
WARNING
Risk of injury from reactive, potentially explosive, or otherwise hazardous gas/air mixtures
during maintenance
Uncontrolled leakage of process gases may result in the formation of explosive gas-air mixtures after
opening the vacuum pump. Ignition can cause very serious injuries.
►Ensure that the suction chamber is sufficiently inert before starting maintenance work.
►Ensure a closed inert gas system in order to avoid zone entrainment as a result of process gas
escaping.
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
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.
WARNING
Crushing and cutting danger on unprotected parts from unforeseeable automatic run-up dur-
ing maintenance.
During activities on exposed mechanical components, there is a risk of crushing or cut injuries from
sudden run-up.
►Switch off the vacuum pump before any maintenance work and work.
►Vent the vacuum pump to atmospheric pressure.
►Disconnect the vacuum pump safely from the mains.
►Secure the vacuum pump against re-start.
►Disconnect the mains cable from the vacuum pump.
Risks in the event of malfunctions
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.
Safety
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CAUTION
Danger of burns on hot surfaces in case of malfunctions
Failure of the ventilation due to transport damage or disregarded previous damage lead to impermis-
sibly high temperatures. There is a danger of burns by accidental contact. There is a risk of property
damage to, and even destruction of the vacuum pump.
►Disconnect the vacuum pump from the mains.
►Allow the vacuum pump to cool down before carrying out any maintenance work.
►Wear personal protective equipment if necessary.
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.
General safety precautions when handling the product
►Observe all applicable safety and accident prevention regulations.
►Check that all safety measures are observed at regular intervals.
►Do not expose body parts to the vacuum.
►Always ensure a secure connection to the earthed conductor (PE).
►Never disconnect plug connections during operation.
►Observe the above shutdown procedures.
►Before working on the vacuum pump, wait until complete standstill (rotation speed f = 0).
►Never put the device into operation with the vacuum connection open.
►Keep lines and cables away from hot surfaces (> 70°C).
►Never fill or operate the unit with cleaning agents or cleaning agent residues.
►Do not carry out your own conversions or modifications on the unit.
►Observe the unit's protection degree prior to installation or operation in other environments.
2.4 ATEX classification and safety measures
WARNING
Explosion hazard when using accessories outside the limits of use
When using accessories, there is a risk of an ignition source forming that could potentially result in an
explosion when pumping explosive gases.
►When pumping explosive media, use only accessories that comply with the requirements of Di-
rective 2014/34/EU.
The HiScroll vacuum pumps comply with the requirements of Directive 2014/34/EU for equipment and
protective systems intended for use in potentially explosive atmospheres with the following marking:
●II 3/-G Ex h IIC T4 Gc X +5 °C ≤ Ta ≤ +40 °C
─Cat. 3G = can be used in Zone 2 inside
─Cat. /- G = installation only in environments without Ex zone; operation in outdoor hazardous
areas is not permitted.
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Classification Description
Device group Devices which can be used for applications in potentially explosive atmospheres
are divided into two groups:
Device group I: Devices for mines susceptible to firedamp (will not be discussed
in any more detail here)
Device group II: Devices for all other potentially explosive areas with the excep-
tion of underground operations in mines and their surface installations which are
susceptible to hazardous firedamp and / or combustible dust.
Device category Device group II is divided into three categories which vary in their respective de-
gree of safety.
Devices of Device category 1 are designed to guarantee an extremely high de-
gree of safety. They must guarantee the necessary degree of safety even if mal-
functions occur only rarely on the device.
Devices of Device category 2 are designed to guarantee a high degree of safe-
ty. They must guarantee the necessary degree of safety even with regular occur-
rences of malfunctions or fault conditions which are generally to be expected.
Devices of Device category 3 are designed to guarantee a normal degree of
safety. They guarantee the necessary degree of safety for normal operation.
Combustible ma-
terials
G: Gases or vapors
D: Dust (will not be discussed in any more detail here)
Type of protec-
tion
Identification code “Ex h” designated in the standard DIN EN ISO 80079-36 for
non-electrical equipment. A protection type established for electrical equipment is
not used.
Explosion groups Gases and vapors are divided into three Explosion groups based on their particu-
lar ignition capability (IIA, IIB and IIC). The ignition power in this regard decreas-
es from Explosion group IIA to IIC. (The higher Explosion group, e.g. IIC incorpo-
rates the respectively lower IIB and IIA).
Temperature
class
Classification of equipment depending on their maximum surface temperature, in
accordance with assignment as follows:
Temperature class --> Maximum surface temperature/gas temperature:
● T1 --> +450 °C
● T2 --> +300 °C
● T3 --> +200 °C
● T4 --> +135 °C
● T5 --> +100 °C
● T6 --> +85 °C
The temperature class and the actual maximum surface temperature of the
equipment includes a safety margin to the minimum ignition temperature of the
potentially explosive atmospheres as stipulated in DIN EN ISO 80079-36.
EPL according to
DIN EN 60079
Equipment protection level
EPL Ga: Equipment with “extremely high” protection level for use in potentially
explosive gas atmospheres in which no risk of ignition exists during normal oper-
ation, with foreseeable or infrequent faults/malfunctions.
EPL Gb: Equipment with “high” protection level for use in potentially explosive
gas atmospheres in which no risk of ignition exists during normal operation, with
foreseeable faults/malfunctions.
EPL Gc: Equipment with “extended” protection level for use in potentially explo-
sive gas atmospheres in which no risk of ignition exists during normal operation.
X Special operating conditions apply that must be observed when pumping in an
explosive atmosphere. These include:
● The limits of use of the product shown in chapter 2.5.
● The prohibition of using accessories (e.g., pressure sensor) without ATEX
approval.
Ta Permissible ambient temperature for operation of the vacuum pump prescribed
on the rating plate.
Tbl. 3: General ATEX designations
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2.5 Limits of use of the product
Installation location Interiors, protected against the accumulation of dust and
weather influences, in a non-explosive, dry environment
Air pressure 750 hPa to 1060 hPa
Installation altitude max. 2500 m
Recommended constant intake pressure 200 hPa1)
Installation surface flatness ±10 %
Rel. air humidity max. 90 %, non-condensing
Ambient temperature 5 ℃ to 40 ℃
Transport temperature -25 °C to 55 °C
Storage temperature -10 °C to 50 °C
Protection class I
Overvoltage category II
Permissible protection degree IP20
Housing type: NEMA Type 1 (according to UL 50E)
Degree of pollution 2
Tbl. 4: Permissible ambient conditions
2.6 Proper use
►Use the scroll pump only for generating vacuum.
►Use the vacuum pump to convey potentially explosive atmospheres in accordance with the label-
ing.
►Use the scroll pump only in closed indoor areas.
►Use the scroll pump for the evacuation of dry and inert gases.
►Use the scroll pump with gas ballast to evacuate moist gases.
►Use only inert gases as gas ballast when evacuating explosive gases.
2.7 Foreseeable improper use
Improper use 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.
●Transporting, installing, or operating the vacuum pump in an impermissible spatial position
●Establishing the voltage supply without correct installation
●Connecting the vacuum pump to unsuitable operating voltages
●Pumping of explosive media when using accessories that do not comply with the pump classifica-
tion.
●Pumping of corrosive media
●Pumping of dust and media containing particles
●Pumping of fluids
●Operating with impermissible high gas throughput
●Operating with impermissible gas ballast quantities
●Operating with impermissibly set stages of the gas ballast valve
●Operating with excessive irradiated heat output
●Operating with impermissibly high exhaust pressure
●Operating in impermissible high magnetic fields
●Using the vacuum pump outside the specified range of application
●Using for pressure generation
●Using in areas with ionizing radiation
●Using in potentially explosive areas
●Using in systems in which sporadic loads and vibrations or periodic forces act on the device
●Using the vacuum pump as a climbing aid
1) Higher permanent intake pressures can lead to increased wear
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●Using of accessories or spare parts that are not listed in these instructions
●Separating, replacing, or reusing the electronic drive unit.
2.8 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 or who have completed the necessary training as
provided by Pfeiffer Vacuum.
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.
2.8.1 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
Specialist for electrotechnical 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 an explicitly 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.
2.8.2 Personnel qualification for maintenance and repair
Advanced training courses
Pfeiffer Vacuum offers advanced training courses to maintenance levels 2 and 3.
Adequately trained individuals are:
●Maintenance level 1
─Customer (trained specialist)
●Maintenance level 2
─Customer with technical education
─Pfeiffer Vacuum service technician
●Maintenance level 3
─Customer with Pfeiffer Vacuum service training
─Pfeiffer Vacuum service technician
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