Edwards nXR60i User manual

Dry Vacuum Pumps
nXR60i and nXR90i
INSTRUCTION MANUAL
A90301880_B Original instrucons
edwardsvacuum.com

Copyright noce
©Edwards Limited 2019. All rights reserved.
Trademark credit
Edwards and the Edwards logo are trademarks of Edwards Limited, Innovaon Drive,
Burgess Hill, West Sussex RH15 9TW.
Disclaimer
The content of this manual may change from me to me without noce. We accept no
liability for any errors that may appear in this manual nor do we make any expressed or
implied warranes regarding the content. As far as praccal we have ensured that the
products have been designed and constructed to be safe and without risks when
properly installed and used in accordance with their operang instrucons.
We accept no liability for loss of prot, loss of market or any other indirect or
consequenal loss whatsoever.
Product warranty and limit of liability are dealt with in our standard terms and
condions of sale or negoated contract under which this document is supplied.
You must use this product as described in this manual. Read the manual before you
install, operate, or maintain the product.
Page 2

P20010275A
CE Declaration of Conformity
The following product
nXR60i 100-127/200-240V 1ph 50/60 Hz NW40 Inlet
A 905 02 983
nXR90i 100-127/200-240V 1ph 50/60 Hz NW40 Inlet
A 906 02 983
Is in conformity with the relevant requirements of European CE legislation:
2006/42/EC
Machinery directive
2014/35/EU
Low voltage directive (LVD) as applicable to electrical sub-assemblies
2014/30/EU
Electromagnetic compatibility (EMC) directive
2011/65/EU
Restriction of certain hazardous substances (RoHS) directive
as amended by Delegated Directive (EU) 2015/863
Based on the relevant requirements of harmonised standards:
EN 1012-2:1996 +A1:2009
Compressors and vacuum pumps. Safety requirements. Vacuum pumps
EN 61010-1:2010
Safety requirements for electrical equipment for measurement, control and laboratory
use. General requirements
EN 61326-1:2013
Electrical equipment for measurement, control and laboratory use. EMC requirements.
General requirements
Class A Emissions, Industrial Immunity
Documentation Officer:
Jelena Havelkova, Spielberk Office Centre, Holandska 10, Brno, 63900 Czech Republic,

: [phone],

: [email protected]
This declaration, based on the requirements of the listed Directives and EN ISO/IEC 17050-1, covers all product
serial numbers from this date on: 6th February 2020.
Petr Smerek - Engineering Manager
Scientific Vacuum Division
Lutin
Nin Buta – General Manager
Lutin
Edwards Ltd
Innovation Drive
Burgess Hill
West Sussex
RH15 9TW
UK

This product has been manufactured under a quality management system certified to ISO 9001:2015
Additional Legislation and Compliance Information
EU EMC Directive: Class A Industrial equipment
Caution: This equipment is not intended for use in residential environments and may not provide adequate protection to
radio reception in such environments.
EU RoHS Directive: Material Exemption Information
This product is compliant with the following Exemptions
Annex III:
•6(a) Lead as an alloying element in steel for machining purposes and in galvanised steel containing up to 0.35 %
lead by weight
•6(b) Lead as an alloying element in aluminium containing up to 0.4% by weight
•6(c) Copper alloy containing up to 4% lead by weight
EU REACH Regulation Compliance
This product is a complex article which is not designed for intentional substance release. To the best of our knowledge
the materials used comply with the requirements of REACH. The product manual provides information and instruction to
ensure the safe storage, use, maintenance and disposal of the product including any substance based requirements.
Article 33 Declaration
This product does contain Candidate List Substances of Very High Concern above 0.1%ww by article as clarified under the
2015 European Court of Justice ruling in case C-106/14.
•Lead (Pb) added to the Candidate List June 2018
As indicated by the applied RoHS exemption(s) above this substance is present in certain aluminium/brass/steel/
components.
ADDITIONAL INFORMATION
The products listed are also in scope for and comply with the requirements of the following:
2012/19/EU
Directive on waste electrical and electronic equipment (WEEE)
Product is certified to
CSA-C22.2 No.61010-1-12
Safety requirements for electrical equipment for measurement, control and
laboratory use – Part 1: General requirements
Product conforms to
UL61010-1 3
rd
Edition
Safety requirements for electrical equipment for measurement, control and
laboratory use – Part 1: General requirements

This product has been manufactured under a quality management system certified to ISO 9001:2015
材料成分声明
China Material Content Declaration
有害物质
Hazardous Substances
部件名称
Part name
铅
Lead
(Pb)
汞
Mercury
(Hg)
镉
Cadmium
(Cd)
六价铬
Hexavalent
Chromium
(Cr VI)
多溴联苯
Polybrominated
biphenyls
(PBB)
多溴二苯醚
Polybrominated
diphenyl ethers
(PBDE)
铸铝及铝合金制品
Aluminium alloys
X O O O O O
铜管管件
Brass pipe fitting
X O O O O O
铜接头
Brass connectors
X O O O O O
O: 表示该有害物质在该部件的所有均质材料中的含量低于 GB/T 26572 标准规定的限量要求。
O: Indicates that the hazardous substance contained in all of the homogeneous materials for this part is below the limit
requirement in GB/T 26572.
X: 表示该有害物质在该部件的至少一种均质材料中的含量超出 GB/T26572 标准规定的限量要求。
X: Indicates that the hazardous substance contained in at least one of the homogeneous materials used for this part is
above the limit requirement of GB/T26572.

This page has been intentionally left blank.

Contents
1. Safety and compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Denion of Warnings and Cauons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Safety symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. General descripon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Pump controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Interface control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3.1 Auxiliary connector socket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Logic interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Auto-run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6 Pump controller conguraon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3. Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Operang and storage condions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.3 Materials exposed to gases pumped. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Electrical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4. Installaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Installaon safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Unpack and inspect. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Mechanical installaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4 Leak test the system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.5 Electrical installaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.5.1 Pump voltage seng. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.5.2 Connect the electrical supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.6 Connecon for remote control and monitoring. . . . . . . . . . . . . . . . . . . . . . . . 20
5. Commission the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6. Operaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.1 Operaon safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Operaonal modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2.1 Manual control mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.3 Logic interface data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.4 Parallel control and monitoring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6.5 Analogue speed control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.6 Hardware conguraon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.7 Operaonal modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Page 3

6.8 Start the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.9 Shut down the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.10 Restart the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7. Maintenance and service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.1 General maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2 Maintenance plan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.3 Inspect and clean the inlet strainer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.4 Clean the external fan grill. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.5 Replace the pump bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.6 Replace the pump controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.7 Electrical safety check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.8 Service indicator codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.9 Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7.9.1 Return the equipment or components for service . . . . . . . . . . . . . . 33
8. Fault nding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.1 The pump has failed to start or has stopped. . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.2 The pump has failed to achieve the required performance. . . . . . . . . . . . . . 34
8.3 The pump is noisy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.4 The pumping speed is poor or pump down me is too long. . . . . . . . . . . . . 35
8.5 Alarm indicator codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9. Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
10. Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
11. Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
11.1 Electrical cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Page 4

List of Figures
Figure 1: nXRi pumps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2: Interface panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3: Valve connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4: Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5: nXR60i Performance curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 6: nXR90i Performance curve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 7: Voltage selecon plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 8: Logic interface connecons - parallel control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 9: Logic interface connecons - analogue speed control. . . . . . . . . . . . . . . . . . . . . . 27
Figure 10: Analogue speed control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Page 5

1. Safety and compliance
1.1 Denion of Warnings and Cauons
Important safety informaon is highlighted as WARNING and CAUTION instrucons.
These instrucons must be obeyed.
The use of WARNINGs and CAUTIONs is dened below.
WARNING:
Warnings are given where failure to observe the instrucon could result in injury or
death to people. The actual symbol shown varies according to the hazard.
CAUTION:
Cauons are given where failure to observe the instrucon could result in minor
injury or damage to the equipment, associated equipment or process.
1.2 Safety symbols
The safety symbols on the products shows the areas where care and aenon is
necessary.
The safety symbols that follow are used on the product or in the product
documentaon.
Warning/Cauon
An appropriate safety instrucon must be followed or cauon to a potenal hazard
exists.
Warning - Heavy object
Indicates the potenal hazard arising from a heavy object.
Warning - Dangerous voltage
Indicates hazards arising from dangerous voltages.
Warning - Protecve earth (ground)
Indicates that the equipment must be grounded.
Warning - WEEE symbol
Indicates that the equipment must be disposed of carefully.
Warning - Use protecve equipment
Indicates that appropriate protecve equipment must be used.
Page 6
A90301880_B - Safety and compliance

2. General descripon
2.1 Overview
WARNING: INCORRECT USE OF EQUIPMENT
Risk of injury or damage to the equipment. Incorrect use of the equipment can cause
damage to the equipment or injury to people. The user is responsible for the safe
operaon, installaon and monitoring of the system.
The nXRi product family is a range of dry, mul-stage roots vacuum pumps that gives
high pumping density in a compact form. The pump is connected by a cord and is
designed for use on clean duty applicaons.
The cord rangs are:
Supply voltage (V) Current (A) Frequency (Hz)
100 ‑ 127 14 50 or 60
200 ‑ 240 7
The pump is not designed for use with ammable, corrosive, toxic or other hazardous
gases. Gas or oxygen can mix in the pump system.
The dry-pumping system operates in steady-state gas load condions. The pump can
sustain connuous operaon with a maximum power consumpon of 850 W. If the inlet
pressure exceeds the specied pressure, the pump controller reduces the motor speed.
The motor speed is increased when the pressure is reduced, or when the transient
overload protecon has recovered. Refer to Table: Performance data on page 13 for
informaon on maximum inlet pressure.
Refer to Figure: nXRi pumps on page 8, the system is supplied with either a NW40 inlet
port (1) and a NW25 exhaust port (10).
The pump mechanism is operated by a three‑phase electric motor. The pump controller
controls the motor.
The system is air cooled by a fan installed internally in the pump enclosure. The pump
has a thermal protecon device that will stop the motor if a thermal overload, for
example in high ambient temperature occurs. You must restart the pump aer the pump
is cooled down.
The pump is designed to pump the residual gases used in high vacuum systems. The
gases are:
▪Air
▪Nitrogen
▪Krypton
▪Argon
▪Helium
You can use the pump to pump water vapour. You must use the gas ballast when water
vapour is pumped. The water vapour must not condense in the pump.
Page 7
A90301880_B - General descripon

To use the pump for a gas that is not listed, contact the supplier for advice. Failure to
contact the supplier can invalidate the warranty of the pump. Do not use the pump for
aggressive or corrosive gases.
Figure 1 nXRi pumps
CS/5008/B
100 - 127 V (14A)V
200-240 V (7A)
50/60 Hz
200-240V
50/60Hz
100-127V
50/60Hz
5
1
2
3
4
5
6
7
8
9
10
11
12
13
1
14
1. Inlet port 2. Dashboard or interface
3. Gas ballast 4. Levelling feet x 2
5. Castors x 2 6. 15-way D-type connector
7. Auxiliary connector 8. Mains circuit breaker
9. Mains connector port 10. Exhaust port
11. Protecve earth stud 12. Voltage selecon plate or cover
13. Liing eye posion
1. Inlet port 2. Dashboard or interface
3. Gas ballast 4. Levelling feet x 2
5. Castors x 2 6. 15-way D-type connector
7. Auxiliary connector 8. Mains circuit breaker
9. Mains connector port 10. Exhaust port
11. Protecve earth stud 12. Voltage selecon plate or cover
13. Liing eye posion
2.2 Pump controller
The pump controller contains the drive electronics to controls the pump operaon. The
pump controller controls the supply of electric current to the motor as per the operang
condions.
The interface control panel is installed on the pump controller. The pump can be
operated:
▪manually, with the buons on the user interface control panel. Refer to Figure:
Interface control panel on page 9.
Page 8
A90301880_B - General descripon

▪ remotely, with the serial communicaons or digital and analogue process control
(parallel), through the 15-way D-type interface connector. Refer to Connecon for
remote control and monitoring on page 20.
2.3 Interface control panel
Figure 2 Interface panel
14 13 6789101112 5
1 2 3 4
CS/3075/A
1. Start buon 2. Standby buon
3. Standby increase buon 4. Standby decrease buon
5. Alarm indicator LED 6. Service indicator LED
7. Auto‑run indicator LED 8. Standby decrease indicator LED
9. USB port (not for operaon) 10. Standby increase indicator LED
11. Standby indicator LED 12. Run indicator LED
13. Stop buon 14. Power status LED
1. Start buon 2. Standby buon
3. Standby increase buon 4. Standby decrease buon
5. Alarm indicator LED 6. Service indicator LED
7. Auto‑run indicator LED 8. Standby decrease indicator LED
9. USB port (not for operaon) 10. Standby increase indicator LED
11. Standby indicator LED 12. Run indicator LED
13. Stop buon 14. Power status LED
2.3.1 Auxiliary connector socket
An auxiliary control connecon on the rear panel controls an oponal inlet valve. This
inlet valve can be operated in parallel with the normal pump output signal. Refer to
Figure: nXRi pumps on page 8, (7). The valve is usually closed and:
▪will open when the normal signal becomes acve (pump at speed)
▪ will close when you select the stop buon or if there is a fault condion
The reacon me will be in line with the valve selecon and the output signal is 24 V d.c.
Refer to Figure: Valve connector on page 10 for polarity of the connector pins when the
connector is energized.
The auxiliary connector is regulated to 24 V d.c. to control the accessories. If the
auxiliary load current exceeds the value in Table: Auxiliary load currents on page 10, the
output will shut down to protect the pump controller. Refer to Table: Recommended
mang plugs on page 10 for the recommended mang plugs.
Page 9
A90301880_B - General descripon

Figure 3 Valve connector
Pin number Signal Polarity
1 Valve 1 - Control output Posive
2 Valve 2 - Control output Posive
3 Valve 1 - Return Negave
4 Valve 2 - Return Negave
Table 1 Auxiliary load currents
Descripon Data
Connector plug Phoenix part number SACC-DSI-M 8FS-4CON-M12/0.5
Voltage output 24 V d.c. -25%, +10% (18 V d.c. to 26.4 V d.c.)
Output power 2 Channels with 4 was per channel
Table 2 Recommended mang plugs
Mang connector plug Phoenix part number
Screw connecon, straight SACC-M 8MS-4CON-M-SW
Solder connecon, straight SACC-M 8MS-4CON-M
Screw connecon, right angle SACC-M 8MR-4CON-M-SW
Solder connecon, right angle SACC-M 8MR-4CON-M
2.4 Logic interface
The logic interface is designed to support the serial control, the parallel control, monitor
and operate through one connector.
The pump controller can be operated through the 15-way D-type logic interface
connector. The signals on the logic interface are:
▪control inputs: switch type and analogue signals that controls the pump.
▪status outputs: to idenfy the status of the system Tab.
For serial control select RS232 or RS485.
For control modes refer to Table: Manual control mode on page 23.
For logic interface data refer to Logic interface data on page 24.
Page 10
A90301880_B - General descripon

2.5 Auto-run
The auto‑run seng congures the pump to start automacally when the power is
switched on, without any customer intervenon.
You can congure the auto‑run through serial communicaons, or with the start or stop
buon. Push and hold the start or stop buon for more than eight seconds to enable or
disable the auto-run seng. The auto-run LED displays the auto-run seng.
The pump can be stopped by either manual, parallel or serial control modes when in
auto‑run mode.
2.6 Pump controller conguraon
The integral pump controller monitors the power and temperature of the pump. The
pump controller protects the user and the pump when the pump is operated under
sustained high load or in fault condions.
The pump controller has the interface control panel and the pump can be operated:
▪manually, with the buons on the user interface control panel. Refer to Figure:
Interface control panel on page 9.
▪ remotely, through serial communicaons or digital and analogue process control
(parallel), via the 15-way D-type interface connector. Refer to Connecon for
remote control and monitoring on page 20.
Page 11
A90301880_B - General descripon

3. Technical data
3.1 Operang and storage condions
Table 3 Operang and storage condions
Range Data
Ambient operang temperature range 5 °C to 40 °C
Ambient operang humidity range 80% up to 31 °C
Reducing linearly to 50% at 40 °C
Maximum operang altude 3000 m
Ambient storage temperature range -30 °C to 70 °C
Maximum humidity (storage in original packaging) ≤ 95 % RH
Equipment type Indoor use
Enclosure protecon IP20
Table 4 Environmental condions
Polluon Polluon degree 2
Installaon Installaon category II
Altude restricon Maximum 3000 m
Area of use Indoor
Table 5 Mechanical data
nXR60i nXR90i
Mass 29.5 kg 30 kg
Inlet connecon NW40
Overall dimensions (L x W x H) 494 x 217 x 301 mm
Maximum lt angle for operaon +/- 5°
Maximum lt angle for transport 30°
Nominal rotaonal speed 15000 rpm
Outlet connecon NW25
Figure 4 Dimensions
217 mm 461 mm
494 mm
107 mm
301 mm 268 mm
370 mm
150 mm
291 mm
Page 12
A90301880_B - Technical data

3.2 Performance
Table 6 Performance data
nXR60i nXR90i
Maximum pumping speed (m3/hr)* 60 90
Maximum connuous inlet pressure ambient (mbar) 1013
Maximum chamber size for evacuaon (l) No limit
Time to evacuate 40 l chamber from 1000 mbar to 0.1 mbar (s)** 40
Maximum connuous exhaust pressure (mbar) 200
Suck-back protecon Exhaust valve design
Leak ghtness (stac) (mbar l/s ) < 1x10-6
* Values for maximum pumping speed are obtained with the inlet strainer. The pumping
speed is measured at standard ambient temperature and pressure. At higher temperature or
dierent ambient pressures pump performance may be compromised and the rotaonal
speed may drop below nominal.
** contact us if the value for your pump is more than the specied value.
Table 7 Sound data
Declared dual-number noise emission values in accordance with ISO 4871
nXR60i nXR90i
Measured A-weighted emission sound pressure
level, LpA at ulmate vacuum 1 m from the
pump in free space
55.0 dB(A)
Measured A-weighted emission sound pressure
level, LpA at 15 mbar at inlet 1 m from the pump
in free space
57.0 dB(A)
Uncertainty, KpA 2.5 dB(A)
Values from ISO 3744: 2010
Figure 5 nXR60i Performance curve
0.001 0.01 0.1 1 10 100 1000 mbar
0
10
20
30
40
50
60
70
0
200
400
600
800
1000
1200
1400
m3h-1
W
1
2
nXR60i
1. Pumping speed 2. Power1. Pumping speed 2. Power
Page 13
A90301880_B - Technical data

Figure 6 nXR90i Performance curve
0.01 0.1 1 10 100 mbar
0
90
10
20
30
50
60
70
80
40
m3h-1
W
0
200
400
600
800
1000
1200
1400
1600
10
100
1
2
nXR90i
1. Pumping speed 2. Power1. Pumping speed 2. Power
3.3 Materials exposed to gases pumped
The materials and the components exposed to the gases in the pump are:
▪ Iron
▪ Aluminium alloy
▪Steel
▪Fluoroelastomer (seals)
▪ PFPE lubricant
3.4 Electrical data
Table 8 Electrical rang for connuous operaon
Pump Supply voltage
(V a.c. rms)
Phase Frequency
(Hz)
Input current
(A rms)
All variants 200 - 240 ± 10% Single 50 or 60 7.0
100 - 127 ± 10% Single 50 or 60 14.0
Table 9 Recommended regional supply protecon
Area Voltage Rang
UK 230 V 10 A, 250 V a.c. rms
Europe 230 V 10 A, 250 V a.c. rms
US 120 V 16 A, 250 V a.c. rms
Japan 100 V 16 A, 250 V a.c. rms
Page 14
A90301880_B - Technical data

4. Installaon
4.1 Installaon safety
CAUTION: SAFETY INSTRUCTIONS
Follow all safety instrucons and take note of all appropriate precauons.
Possible hazards on the dry pumping system include electricity, process chemicals, and
Fomblin® (PFPE) oil:
▪Refer to the safety manual P40040100 for safety informaon for the specicaon,
design, operaon and maintenance of vacuum pumps and vacuum systems.
Contact us for the safety manual.
▪Contact us or the local service centre for more informaon for advice or assistance
on installaon.
▪Do not remove the temporary covers from the system inlet and exhaust unl ready
to connect.
▪ Do not operate the system unless the inlet and exhaust are connected to the
vacuum and exhaust extracon system.
▪Isolate the other components in the process system from the electrical supply to
prevent accidental operaon.
▪ Electrical supplies are potenally hazardous energy sources. Lockout and tagout
before you do the maintenance.
▪ Obey all naonal and local rules and safety regulaons when you install the system.
▪Tighten the cables, hoses and pipework during installaon to prevent a trip hazard.
▪ Make sure that the installaon area is clean and free from debris and
contaminaon before you install the pump.
▪ Make sure that all facilies given in this manual are available for the system to
perform correctly.
WARNING: BLOCKED EXHAUST PIPELINE
Risk of damage to equipment. Make sure the exhaust pipeline is not blocked. If an
exhaust isolaon valve is used, make sure that the pump is not operated with the
valve closed.
4.2 Unpack and inspect
WARNING: DAMAGED PUMP
Risk of injury to people or damage to equipment. Do not use the pump if it is
damaged. Failure to do so can result in injury to people and/or damage to
equipment.
Page 15
A90301880_B - Installaon

CAUTION: PUMP LIFE
Risk of damage to equipment. Unpack the pump carefully and avoid excessive shock
to the pump. Excessive shock will damage the bearings and reduce the life of the
pump.
Refer to Table: Mechanical data on page 12 for the mass of the pump.
The pump is supplied in a recyclable packaging.
1. Open the cardboard box from the top.
2. Remove the packing material. Keep all the packing materials for use in inspecon
and if the pump is returned for service.
3. Examine the pump for damage. If the pump is damaged, nofy your supplier and
the carrier immediately. Give the supplier and the carrier the informaon that
follows:
▪part number of the pump
▪serial number of the pump
▪order number
▪ supplier's invoice number
4. Do not use the pump if the pump is damaged.
5. Check that the package has the items listed in Table: Checklist of items on page 16.
If any of these items are missing, nofy the supplier in wring within three days.
6. If the pump is not to be used immediately, store the pump in the condions given
in Storage on page 37.
7. Do not remove the seals unl the pump is ready to be installed on the vacuum
system. The pump is supplied with sealed inlets and outlet to prevent the entry of
dust and vapour.
Table 10 Item checklist
Quanty Descripon Check
1 nXRi vacuum pump q
2Liing eye q
1Instrucon manual CD (P45000000) q
4.3 Mechanical installaon
WARNING: HEAVY OBJECT
Risk of physical injury. Use suitable equipment to li the pump.
WARNING: LOOSE CABLES/PIPEWORK
Tripping hazard. Make sure that any cables and/or pipe work aached to the pump
are xed carefully to avoid a slip/trip hazard and to prevent any damage to the cable.
Page 16
A90301880_B - Installaon