Edwards EDS 200 User manual

Industrial Dry Vacuum Pumps
EDS 200 AND EDS 300
INSTRUCTION MANUAL
A41802880_C
300767970_002_C2
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.
Page 2

Contents
1. Safety and compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Denion of Warnings and Cauons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.1 Safety symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2. Important safety informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Mechanical hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Electrical hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Thermal hazards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.4 Danger through materials and substances. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5 Explosion hazard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.6 Noise hazard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3. ATEX cercaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Classicaon and marking of the pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Condions of safe use. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4. Descripon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1 Design. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Supplied equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Ordering informaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.1 Pumps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3.2 Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5. Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
6. Transport and storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1 Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7. Installaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.1 Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.2 Normal operaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.2.1 Abnormal operaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.3 Connecng the inlet and exhaust lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3.1 Inlet lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3.2 Exhaust lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.4 Connecng cooling-water. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.4.1 Water quality. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.5 Connecng purge gas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.6 Electrical connecons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.6.1 Wiring the motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.6.2 Motor thermistors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Page 3

7.6.3 Pump body thermal snap switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.6.4 Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7.6.5 Check the direcon of rotaon of the motor. . . . . . . . . . . . . . . . . . . . . . 35
7.6.6 Connecng the heat exchanger fan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.7 Leak check aer installaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8. Operaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
8.1 Media compability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.2 Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.3 Manual shut-down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8.4 Unplanned shut-down and alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9. Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.1 Return the equipment or components for service . . . . . . . . . . . . . . . . . . . . . . . . 38
9.2 Maintenance intervals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.3 Checking the oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
9.4 Inspect the closed cooling-water circuit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
9.5 Inspect pipelines and connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
10. Spares. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
11. Diagnose a fault. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11.1 Pump does not start up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11.2 Pump gets too hot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
11.3 Pump is extremely loud. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11.4 Motor power consumpon is too high. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11.5 Pump is too loud. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
11.6 Pump is losing lubricant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
11.7 Oil gets too dark. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
11.8 Lubricant in the pump chamber. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
11.9 Pump does not aain its pumping speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
12. Dimension drawings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
13. Wearing parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
14. Waste disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Page 4

List of Figures
Figure 1: EDS pump models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 2: Pumping speed curves EDS 200 and EDS 300. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3: Liing the EDS pump. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 4: Connecons and controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Figure 5: Oil level at pump standsll. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 6: Inlet age dimensions (in mm). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 7: Maximum permissible ange loads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 8: Connecons and direcon of motor rotaon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 9: Cooling water level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 10: Schemac for purge gas and switches - EDS pump with air cooling. . . . . . . . . . . . . 30
Figure 11: Schemac for purge gas and switches - EDS pump with water cooling. . . . . . . . . . . 31
Figure 12: Wiring schemac-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 13: Wiring schemac-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 14: Pump body thermal snap switch connecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 15: Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Figure 16: Heat exchanger fan connecon. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 17: Oil level check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 18: Oil level at pump standsll. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 19: Cooling water level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 20: EDS 200/300 with air cooling (dimensions in mm). . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 21: EDS 200/300 with water cooling (dimensions in mm). . . . . . . . . . . . . . . . . . . . . . . . 48
Page 5

1. Safety and compliance
1.1 Denion of Warnings and Cauons
NOTICE:
Obligaon to Provide Informaon
Read and follow these instrucons carefully before installing and commissioning to
ensure opmum and safe operaon right from the start.
Safe and proper operaon is guaranteed when used correctly and in accordance with the
instrucons contained in these operang instrucons. Please read all safety instrucons
in this secon and the rest of this manual carefully and make sure that these instrucons
are followed. The device may be operated and maintained only by trained personnel in
the proper condion and as described in the operang instrucons. Also observe local
and state requirements and regulaons. If you have any quesons regarding safety,
operaon or maintenance of the device, please contact our nearest subsidiary.
DANGER:
Danger indicates a hazard with a high level of risk which, if not avoided, will result in
death or serious injury.
WARNING:
Warning indicates a hazard with a medium level of risk which, if not avoided, could result
in death or serious injury.
CAUTION:
Cauon indicates a hazard with a low level of risk which, if not avoided, could result in
minor or moderate injury.
NOTICE:
Informaon about properes or instrucons for an acon which, if ignored, will cause
damage to the pump or the system.
We reserve the right to change the design and the stated data. The illustraons are not
binding.
Keep the instrucons for future use.
1.1.1 Safety symbols
The safety symbols on the products shows the areas where care and aenon is necessary.
The safety symbols that follow can be used on the product or throughout the product
documentaon.
Page 6
A41802880_C - Safety and compliance

General warning sign
Warning of counter-rotang rollers
Warning of automac start-up
Warning of danger of slipping
Warning of electrical voltage
Warning of hot surface
Warning of explosion
Page 7
A41802880_C - Safety and compliance

2. Important safety informaon
2.1 Mechanical hazards
CAUTION: LOSS OF STABILITY DURING TRANSPORT
Uncontrolled movement due to incorrect aachment / liing / carrying / rolling or
movement of the vacuum pump. Only use the aachment points and conveying means
described in this manual for vercal and horizontal conveying.
WARNING: EJECTION OF PARTS
Ejecon of parts through bursng of vacuum system due to excessive pressure caused by
incorrect direcon of rotaon. Pressure build-up in the vacuum system or in vacuum
chambers. Check the direcon of rotaon of the vacuum pumps before each start-up,
aer each motor change and aer each electrical connecon change.
Ejecon of parts through bursng of vacuum system as a result of excessive pressure
caused by clogged or constricted exhaust. Pressure build-up in the vacuum system or
exhaust pipes. Do not start up or operate the vacuum system with the outlet closed or
throled.
Ejecon of parts through bursng of vacuum system due to excessive pressure, caused by
faulty funcon at the gas inlet into the vacuum system. Pressure build-up in the vacuum
system or inlet lines. Check correct connecon of inlet and outlet anges before
commissioning. The inlet pressure at the sucon port of the vacuum system must not
exceed atmospheric pressure. If seal gas or gas-ballast from pressure vessels is used,
secure the supply in such a way that no overpressure can occur in the vacuum system in
the event of a fault or power interrupon.
Ejecon of parts through bursng of vacuum system as a result of excessive pressure
caused by the pump running backwards aer it has been switched o under vacuum.
Danger of overpressure in the inlet lines and recipients as well as uncontrolled backward
running of rotors. In the event of a fault or during service, separate the vacuum pumps
from the vacuum vessel and connecng lines before the inlet by means of suitable valves.
WARNING: RISK OF CUTTING AND CRUSHING
Risk of cung and cung o by contact with moving parts such as couplings, shas and
rotors.
Risk of cung and crushing when reaching into open anges or covers.
Do not operate the vacuum pump with open anges or covers. When installing, rst
mechanically connect the inlets and outlets, close the covers of rotang parts and then
make the electrical connecons. Disconnect the vacuum pump from the power supply
before servicing. Only use trained service personnel.
Page 8
A41802880_C - Important safety informaon

WARNING: UNEXPECTED RESTART
Failure or malfuncon of the central control system (unexpected start-up) or danger of a
pump restarng automacally aer switching o due to a fault.
Risk of crushing, cung or cung o by touching moving parts due to recurring start
command or power supply.
Before carrying out maintenance or service work, disconnect the pump from the power
supply, secure it against being switched on again, determine that it is de-energised,
ground and short-circuited and cover / isolate adjacent live parts.
CAUTION: RISK OF INJURY
Pulling in of body parts and objects into the vacuum through open anges. Do not
operate the vacuum pump with open anges. When installing the vacuum pump, rst
mechanically connect the inlets and outlets and then make the electrical connecons.
CAUTION: HIGH PRESSURE GAS
Danger due to incorrect connecon of the pump to the system to be pumped out.
Pressure build-up in the vacuum system.
Check correct connecon of inlet and outlet anges before commissioning. When using
the pump with seal gas, protect the seal gas supply so that no overpressure can occur in
the pump system in the event of a malfuncon or power interrupon.
CAUTION: TRIP HAZARD
Slipping, tripping or falling as a result of oil leaking from the pump. Oil can escape from
the vacuum pump during pumping or depending on the work process. Risk of falling on
oil spills. Check the vacuum pump regularly for oil leaks. Take the appropriate safety
measures
2.2 Electrical hazards
DANGER: ELECTRICAL SHOCK
Risk of electrical shock caused by direct or indirect contact with live parts. Electrical
shock due to faulty electrical connecon and possible residual voltage up to 5 minutes
aer disconnecon from the mains. The electrical connecon may only be carried out by
a trained person. Observe the naonal regulaons in the user country, e.g. for Europe EN
50110 - 1. Prior to servicing, disconnect the vacuum pump from the power supply.
Risk of electrical shock due to interrupon of the protecve conductor system. In the
event of a fault, life-threatening voltages may be present on electrically conducve
components. Before commissioning, check the resistance of the earthing cable and the
suitability of the assigned overcurrent protecon device.
Page 9
A41802880_C - Important safety informaon

DANGER: LIGHTNING STRIKE
Risk of re and injury from lightning strike. The operator is responsible for assessing the
hazard potenal when used outside of buildings.
2.3 Thermal hazards
CAUTION: HOT SURFACES
Burning of ngers, hands or arms on hot surfaces. Handle the pump only when venlated
and cooled down. Wear suitable protecve equipment.
Scalding by contact with hot equipment or lubricants. Danger of scalding when opening
the hot pump with hot operang uid or cooling-water. Only open the outlet or inlet port
for operang media if the operang medium has adapted to the room temperature.
Wear suitable protecve equipment.
A barrier must be placed around the pump to prevent accidental contact with hot
surfaces. The barrier must not only consist of barricade tapes or warning signs. The
barrier must be reliable and require tools (such as screwdriver or allen key) for removal.
2.4 Danger through materials and substances
DANGER: HAZARDOUS GASES
Danger due to a rapid increase in pressure due to the decomposion of pumped gases.
Uncontrolled emission of process gases by reacon products within the pump. The
pumping of reacve gases, vapours or gas mixtures is generally prohibited. The operator
is responsible for assessing the hazard potenal of the process media or mixtures.
Danger of escaping or eming pumped hazardous gases, vapours or substances. Pumped
process gases may escape from the exhaust and leaks in the vacuum system. The
pumping of pyrophoric / radioacve / oxidizing gases or gas mixtures, as well as the
pumping of oxygen of more than atmospheric concentraon (21 %) is generally
prohibited. The operator is responsible for assessing the hazard potenal of the process
media or mixtures.
2.5 Explosion hazard
DANGER: INTERNAL EXPLOSION
The pump is suitable for use with internal and external ammable atmospheres as
dened by the pump marking. There is a risk of internal explosions within the pump, or
ignion sources externally, if the pump is operated outside of the limits of operaon.
Page 10
A41802880_C - Important safety informaon

2.6 Noise hazard
CAUTION: HIGH NOISE LEVELS
The operang condions can cause higher noise levels than specied in the technical
data. Take suitable hearing protecon measures.
Pressure values in bar or mbar are absolute pressures, unless expressly stated otherwise
(e.g. bar(g)).
Page 11
A41802880_C - Important safety informaon

3. ATEX cercaon
DANGER: INTERNAL EXPLOSION
The EDS dry pump is designed to pump gas and/or vapours. Ensure that the pump
temperatures are sucient to prevent condensaon forming which may otherwise lead
to corrosion and loss of explosion protecon. The use of seal purges and correct warm-up
and shut-down procedures are necessary to prevent the formaon of condensaon. If in
any doubt, please consult Edwards.
Sha-seal purge must be maintained in order to ensure long term reliability of sha-seals
and the zoning/protecon concept.
If blockages of the exhaust are possible, exhaust pressure should be monitored,
otherwise excessive back-pressure can occur, leading to high temperatures and risk of
explosion.
The EDS ATEX Category 3 dry pump uses the protecon strategy of construconal safety for
internal atmospheres, and sases the requirements for ATEX Category 3.
Construconal safety relies on there being no ignion sources inside the pump. EDS dry
pumps are manufactured and tested to show that running clearances are maintained in the
pump during extremes of normal operaon and at trip points of pump safety instruments.
For Category 3 inside pumps, ignion hazards are prevented from occurring in normal
operaon. When using construconal safety as the protecon concept ensure that no
process deposits are formed inside the pump which could potenally create an ignion
source. This can be achieved either by process control or by the use of solvent ush. In such
systems the solvent ush operaon is safety crical and suitable safeguards must be put in
place to ensure that solvent ow is maintained to the prescribed regime. The gearbox of the
EDS pump is classied one zone lower than the pumping chamber; the high-integrity seal in
combinaon with seal purge ensures zone separaon.
The EDS is capable of pumping a potenally explosive atmosphere that is likely to occur
occasionally in normal operaon and therefore sases the essenal requirements
idened in Annex II of the ATEX Direcve 2014/34/EU for Category 3 equipment.
3.1 Classicaon and marking of the pump
The pump is marked as follows:
II 3/-G Ex h IIC T3 Gc
5 °C < Ta < 40 °C
(internal atmospheres only)
Modifying the supplied pump, voids the CE and ATEX Declaraon of Conformity.
Table 1 Key to the Symbols
ATEX logo
h The code leer “h” is valid for all non-electrical devices.
IIC Explosion group
Page 12
A41802880_C - ATEX cercaon

T3 Temperature class. Pumps belonging to temperature class T3 must only be
operated with gases or vapors which exhibit an ignion temperature of over 200
°C.
3.2 Condions of safe use
The EDS pump must be operated in accordance with the denions of normal use and
operaonal limits as specied within this manual.
Accessories and addional parts ed to the EDS pump must full the requirements of the
ATEX Direcve 2014/34/EU regarding the equipment group and category and they must be
applicable for use in explosive atmospheres of the respecve gas group and temperature
class. Accessories and addional parts should be approved by Edwards otherwise they may
have a detrimental eect on the pump performance and safety.
The mandatory safety instruments specied in this manual must be used and must not be
replaced with alternaves from other manufacturers without consultaon with Edwards.
Only processes which fulll the condions of the normal operaon as specied in this
manual must be used.
EDS pumps must only be used on processes if their materials resist the mechanical and/or
chemical inuences and corrosion, under the respecve operang condions, so that the
explosion protecon is always maintained.
Means for prevenng back-ow of the pumped media must be used if back-ow can result
in process hazards.
Opening the EDS pump is only permied with the pump switched o, isolated from the
electrical supply and in the absence of explosive atmosphere.
Process limits
Inlet pressure: The range of allowable inlet pressures is 0 – 1013 mbar.
Exhaust pressure: The maximum allowable exhaust pressure is 1200 mbar for T3 pumps and
1100 mbar for T4 pumps.
Inlet gas temperature: The maximum allowable inlet gas temperature is 110 °C for inlet
pressures < 150 mbar, and 80 °C for inlet pressures > 150 mbar.
Safety instruments
Refer to Pump body thermal snap switch (on page 34)
and install and connect all mandatory
safety switches.
4. Descripon
Figure 1 EDS pump models
Page 13
A41802880_C - Descripon

EDS 200 and EDS 300 look the same, they dier only in their performance.
A. EDS 200/300 water-cooled B. EDS 200/300 air-cooled (with heat exchanger)A. EDS 200/300 water-cooled B. EDS 200/300 air-cooled (with heat exchanger)
4.1 Design
The EDS dry pump range has been developed to meet the demanding requirements for
pumping soluons in industrial and chemical applicaons. The EDS pumps in general are
designed for general vacuum use only and operaon in rough and ne vacuum to evacuate
vessels and to pump gas mixtures.
The pump is a dry, posive displacement screw vacuum pump in which pairs of
intermeshing, non-contacng screw rotors are turning contrawise in phase by ming-gears.
The screw rotors are driven by an asynchronous electrical motor. Blow-o valves within the
mechanism minimize pumping power at high pressures and allow the pump to be started
direct-on-line. The rotaonal speed of screw rotors is increased by transmission gears. Gears
and bearings are oil lubricated.
The EDS pumps are supplied with dierent motors concerning main voltage and supply
frequencies.
Cooling system
The motor is air-cooled by an integrated cooling-fan. The EDS pump itself is water or air
cooled.
Water cooled: cooling-water circulates around the pump-body and then passes out of the
pump. The cooling system is open-loop and unregulated such that the cooling water ow
rate and temperature will directly the temperature of the pump.
Air cooled: glycol/water mixture circulates around the pump-body and through the water to
air cooled heat exchanger via an integrated water pump. The cooling system is closed-loop.
The pumps have a thermal snap-switch on the pump-body as temperature monitoring.
The output of the thermal snap-switch has two connecons: one will open circuit when the
temperature of pump-body is higher than 90 °C. Use this output to provide a warning of high
temperature. The second output will open circuit when the temperature of pump-body is
higher than 110 °C. Use this output to shut-down the pump when it is too hot.
Gas system
The EDS pumps have a sha-seal purge system and a gas-ballast system.
The sha-seal purge delivers the supplied gas, e.g. dry compressed air or nitrogen, to the
internal sha seal system to protect it and ensure lifeme and funconality. Sha-seal purge
ensures that the sha-seals are maintained at a posive pressure gradient to pumping
chamber during pump operaon; therefore it prevents the entry of corrosive or toxic
process vapours into the pump gearbox; prevents contaminaon of the process gases by
pump oil; prevents damage to sha-seals by debris.
As supplied, the gas-ballast system can deliver ambient air to the pump gas-ballast inlet.
Gas-ballast use depends on your applicaon and can e.g. reduce temperature load or
increase water vapour capability. The air-ow is ltered and is controlled by a valve. A check-
valve in the system prevents the escape of process gases out of the gas ballast. If required
for your applicaon, it is possible to connect dry nitrogen supplies to the pump, to deliver
nitrogen gas ballast and nitrogen sha-seal purge instead of air.
Page 14

Covers
The pump is equipped with covers. These must always be mounted during operaon of the
pump, because they protect the operators from touching hot surfaces and they are required
for the cooling air ow.
4.2 Supplied equipment
1. Pump as described in Design and Pumps
2. The pumps are lled with lubricant: Ultragrade® Endurance Extend 110
3. The pump anges have been blanked o with a sealing cap
4. 4x crane eyes M16
5. Inlet diuser
6. NW 40 clamping ring & O-ring for exhaust, O-ring for inlet
7. Pump body thermal snap switch
4.3 Ordering informaon
4.3.1 Pumps
Table 2 Pumps ordering informaon
EDS ATEX Electrical Supply Part No.
EDS 200 water cooled
II 3/-G Ex h IIC T3 Gc
5 °C < Ta < 40 °C
(internal atmospheres only)
200/400 V 50 Hz A41820945
230/460 V 60 Hz A41820946
200 V 50 Hz A41820934
200/380 V 60 Hz A41820936
575 V 60 Hz A41820957
EDS 200 air cooled
200/400 V 50 Hz A41821945
230/460 V 60 Hz A41821946
200 V 50 Hz A41821934
200/380 V 60 Hz A41821936
575 V 60 Hz A41821957
EDS 300 water cooled
200/400 V 50 Hz A41830945
230/460 V 60 Hz A41830946
200/380 V 50 Hz A41830934
200/380 V 60 Hz A41830936
575 V 60 Hz A41830957
EDS 300 air cooled
200/400 V 50 Hz A41831945
230/460 V 60 Hz A41831946
200/380 V 50 Hz A41831934
200/380 V 60 Hz A41831936
575 V 60 Hz A41831957
Page 15

4.3.2 Accessories
Table 3 Accessories
Accessories Part number
Exhaust pressure transmier (PS1) A41894000
Exhaust gas temperature transmier (TS3) A41895001
Stator temperature transmier (Pt 100) A41895000
Roots adapter A41893000
Ultragrade® Endurance Extend 110, 1 l H11032010
Ultragrade® Endurance Extend 110, 4 l H11032012
Roots adapter for EH 500 A41893001
TCV direct cooled A41890000
Silencer kit NW40 A41896009
Solenoid valve for purge system A41891001
Page 16

5. Technical data
Table 4 Technical data
EDS 200 300
Pumping speed without gas-ballast > 210 m3/h > 280 m3/h
Ulmate paral pressure < 0.05 mbar < 0.01 mbar
Maximum permissible inlet pressure 1013 mbar
Max. permanent discharge pressure
(absolute pressure) 1200 mbar
Swept volume maximum pressure rang 11 bar
Integral leak rate < 10-4 mbar l/s
Water vapour capacity without
condensaon between 10 – 50 mbar 1.5 - 7 kg/h 2 - 10 kg/h
Permissible ambient temperature 5 to 40 °C
Storage temperature -30 to +50°C
Typical connuous A-weighted sound
pressure level at ulmate pressure
(without silencer but with long exhaust
line)
≤ 72 dB(A)
Relave atmospheric humidity max. 90%
Installaon locaon up to 2000 m (m ASL)
Cooling Water and water/ glycol mixture
Mains voltage 200 - 230 V or 380 - 460 V AC ± 10% or 575 V
Frequency 50/60 Hz
Phases 3-ph
Motor rang 5.5 kW (7.5 HP) 7.5 kW (10 HP)
Current rang (200 – 230 V systems) @
full load 23 A 29 A
Current rang (380 – 460 V systems) @
full load 11.5 A 14.5 A
Recommended branch circuit fuse:
UL (200 – 230 V systems)
IEC (200 – 230 V systems)
UL (380 – 460 V systems)
IEC (380 – 460 V systems)
UL (575 V systems)
IEC (575 V systems)
32 A
32 A
16 A
16 A
16 A
16 A
Min cable size for:
200 – 230 V systems
380 – 460 V systems
575 V systems
6 mm2
4 mm2
4 mm2
Power consumpon at ulmate pressure 4.1 kW (5.5 HP) 4.5 kW (6 HP)
Installaon category II (IEC 60664-1)
Input supply voltage unbalance Should not exceed 2% when assessed over any one
minute period
Page 17
A41802880_C - Technical data

EDS 200 300
Short circuit current rang according
IEC/EN 60947 suitable for motors with
eciency class IE3.
225 A
Second protecve earth (ground)
conductor
Must be ed with cross-seconal area at least equal to
phase conductor size
Cooling fan for heat exchanger
Supply voltage 1-phase 24 V DC
Nominal current consumpon 5 A
Pump body thermal snap switch
Supply voltage 1-phase 6 - 230 V AC
Rotor speed 6600 rpm 7500 rpm
Min. permissible motor speed1) 1200 rpm
Protecon class
Water cooled
Air cooled
IP 54
IP 20
Approx warm-up me to a temperature
of 40 °C (stator), with a cooling-water
ow of 4 l·min-1 @20°C
60 min
Oil lling Ultragrade® Endurance Extend 110
Oil quanty
Drive (gearbox)
Inlet side
1250 ml
250 ml
Inlet ange ISO 63
Exhaust ange NW 40
Materials
Rotors, Stators, Shas, Gearbox Cast SG Iron
Seals PTFE and uroelastome
Coupling cover Cast grey iron, steel, aluminium, brass, rubber
Timing gears Steel
Closed water circuit lling Drystar water mixture 50:50
Oil lling Synthec
Weight (approximate) 420 kg
Water
Water connecon G½˝ female threads
Water supply temperature 5 °C - 35 °C
Required water pressure dierenal (to
achieve minimum 8 l/min) 0.2 bar
Maximum supply pressure 7 bar(g)**
Primary cooling circuit volume
(Drystar water mixture volume in case of
variant with indirect cooling)
6 l
Purge
Connecon G¼˝ female thread
Purge gas supply pressure range 4 to 10 bar (g)
Purge gas regulated pressure > 2.2 bar (g)
Page 18
A41802880_C - Technical data

EDS 200 300
Purge gas supply quality < 5 μm
Seal purge ow rate 12 slm total
Gas-ballast ow rate 0 to 50 slm (adjustable)
1) The minimum permissible speed is relevant for the oil lubricaon of bearings and gears. Running the pump at
less than the minimum speed for more than 1 hour can cause damage to the pump due to a lack of lubricaon.
**bar(g): bar (gauge) is the overpressure, i.e. atmospheric pressure = 0 bar(g)
Figure 2 Pumping speed curves EDS 200 and EDS 300
Page 19
A41802880_C - Technical data

6. Transport and storage
CAUTION: LOSS OF STABILITY DURING TRANSPORT
Uncontrolled movement due to faulty aaching/liing/carrying/rolling or moving the
vacuum pump. For vercal and horizontal transport, use only the aachment points and
transport means described in this manual.
NOTICE:
The pumps are supplied lled with synthec oil. For this reason they should, while being
transported or shipped, not be subjected to much lng (10° max.). Store the pumps only
horizontally standing on their feet.
Use a suitable fork-li truck or pallet truck to move the pump on its pallet, close to where
you will install it.
Remove all packing materials.
Li the pump at the crane eyes. Use all crane eyes. Ensure that it cannot p over.
Figure 3 Liing the EDS pump
A - max. 450
6.1 Storage
Store the pumps only horizontally standing on their feet.
Open the pumps only immediately before installing them.
NOTICE:
If there is the danger of frost, the cooling-water must be drained.
You may use a water glycol mixture of up to 50 %
Page 20
A41802880_C - Transport and storage