Related Manuals for Edwards nES EX Series
Summary of Contents for Edwards nES EX Series
- Page 1 nES SINGLE STAGE EX SERIES ROTARY VANE PUMPS INSTRUCTION MANUAL Publication Number: A351-18-880 Issue: A Original Instructions edwardsvacuum.com...
- Page 2 Edwards and the Edwards logo are trademarks of Edwards Limited. Disclaimer The content of this manual can change from time to time without notice. Edwards accepts no liability for any errors that my appear in this manual nor does it make any expressed or implied warranties regarding the content.
- Page 3 Declaration of Conformity Edwards Ltd, Innovation Drive, Burgess Hill, West Sussex, RH15 9TW, UK The following product: Product designation: nES---ex Type designation: 40 / 65 / 100 / 200 / 300 / 630 part number: nES40ex / nES65ex / nES100ex / nES200ex / nES300ex / nES630ex and their variants...
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Page 5: Table Of Contents
A351-18-880A - Contents Contents Safety Key to the symbols ......................9 Description Principle of operation ....................12 Inside the pump (process gas) ................13 Outside the pump ....................13 Ignition temperatures of gases/vapours that can be present ......13 Potential Ignition Sources ..................14 Protective measures ..................14 Technical data Technical characteristics nES40ex ................16 Technical characteristics nES65ex ................17... - Page 6 Ultimate pump pressure ....................52 Maintenance Safety Information .......................53 Spare parts ......................53 Maintenance Intervals ....................54 Service at Edwards Vacuum Service Technology Centre ..........54 Maintenance work .......................55 Checking the oil level ..................55 Checking the oil condition .................55 Observe the safety regulations ................56 Oil change ........................56...
- Page 7 A351-18-880A - List of Figures List of Figures Figure 1: Dimensional drawing nES40ex ................22 Figure 2: Dimensional drawing nES65ex ................23 Figure 3: Dimensional drawing nES100ex ................24 Figure 4: Dimensional drawing nES200ex ................25 Figure 5: Dimensional drawing nES300ex ................26 Figure 6: Dimensional drawing nES630ex ................27 Figure 7: Pumping speed nES40ex ..................28 Figure 8: Pumping speed nES65ex ..................28 Figure 9: Pumping speed nES100ex ..................29...
- Page 8 A351-18-880A - List of Tables List of Tables Table 1: Technical characteristics nES40ex ................16 Table 2: Technical characteristics nES65ex ................17 Table 3: Technical characteristics nES100ex ................18 Table 4: Technical characteristics nES200ex ................19 Table 5: Technical characteristics nES300ex ................20 Table 6: Technical data nES630ex ..................21 Table 7: Ordering information ATEX category II pumps ............31 Table 8: Ordering information bare shaft pump ..............31 Table 9: Connections ......................33...
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Page 9: Safety
Emphasises additional application information and other useful information provided within these operating instructions. Edwards nES Single Stage EX Series ATEX Cat 2 vacuum pump will be referred to as “the pump” throughout the manual. The pump has been designed for safe and efficient operation when used properly and in accordance with these operating instructions. - Page 10 A351-18-880A - Safety WARNING: Never expose any part of the body to vacuum. There is a danger of injury. Never operate the pump with an open and thus accessible inlet. Vacuum connections as well as oil fill and oil drain openings must not be opened when the pump is being operated. WARNING: When the pump is operating, some surfaces could reach a temperature greater than 80 °C (176 °F).
- Page 11 CAUTION: Liquid and solid particles or dust must not enter into the pump. Install the adequate filters, separators and/or condensers. In case of doubt consult Edwards. CAUTION: The intake line of the pump must never be connected to a device with over atmospheric pressure.
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Page 12: Description
A351-18-880A - Description Description The pump is designed to pump gases aligned to ATEX marking (gas group and instruction manual recommendations) from a Zone 1 environment between atmospheric pressure and end pressure of the pump. When removing condensable vapours, a gas ballast must be used to avoid condensation. -
Page 13: Inside The Pump (Process Gas)
A351-18-880A - Description Inside the pump (process gas) The inside (process gas side) of this vacuum pump is designed and constructed so as not to present an ignition source in cases of expected malfunction. It is therefore correct for use in situations in which explosive atmospheres caused by gases, vapours, mists can occur occasionally in normal operation (that is, Zone 1). -
Page 14: Potential Ignition Sources
Note: Higher maximum surface temperatures will occur if the pump is filled and used with oils other than Edwards type Ultragrade Extend oil. Hot gases Hot gases are produced inside the pump due to compression of the gas in normal operation and are released at the exhaust. - Page 15 Note: Only original Edwards replacement exhaust gas filter cartridges and gas inlet filter cartridges should be used as these have a special construction to make sure of proper grounding. The pump accessories must be grounded as well.
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Page 16: Technical Data
A351-18-880A - Technical data Technical data Technical characteristics nES40ex Table 1 Technical characteristics nES40ex 50 Hz 60 Hz Nominal speed Pumping speed 38.5 0.5 0.5 Ultimate total pressure mbar without gas ballast 1.5 1.5 Ultimate total pressure with mbar standard gas ballast Ambient temperature 10 to 40 °C Inlet gas temperature... -
Page 17: Technical Characteristics Nes65Ex
A351-18-880A - Technical data Technical characteristics nES65ex Table 2 Technical characteristics nES65ex 50 Hz 60 Hz Nominal speed Pumping speed 0.5 0.5 Ultimate total pressure mbar without gas ballast 1.5 1.5 Ultimate total pressure with mbar standard gas ballast Ambient temperature 10 to 40 °C ... -
Page 18: Technical Characteristics Nes100Ex
A351-18-880A - Technical data Technical characteristics nES100ex Table 3 Technical characteristics nES100ex 50 Hz 60 Hz Nominal speed 97.5 Pumping speed 87.5 0.5 0.5 Ultimate total pressure mbar without gas ballast 1.5 1.5 Ultimate total pressure with mbar standard gas ballast Ambient temperature 10 to 40 °C ... -
Page 19: Technical Characteristics Nes200Ex
A351-18-880A - Technical data Technical characteristics nES200ex Table 4 Technical characteristics nES200ex 50 Hz 60 Hz Nominal speed Pumping speed 0.15 0.15 Ultimate total pressure mbar without gas ballast 0.7 0.7 Ultimate total pressure with mbar standard gas ballast Ambient temperature 10 to 40 °C ... -
Page 20: Technical Characteristics Nes300Ex
A351-18-880A - Technical data Technical characteristics nES300ex Table 5 Technical characteristics nES300ex 50 Hz 60 Hz Nominal speed Pumping speed 0.15 0.15 Ultimate total pressure without mbar gas ballast 0.7 0.7 Ultimate total pressure with mbar standard gas ballast Ambient temperature 10 to 40 °C ... -
Page 21: Technical Data Nes630Ex
20/23 Inlet connection DN100 Exhaust connection DN100 Temperature switch (pump) According to DIN 28 400 with standard gas ballast. § Contact Edwards. ‡ Operated at ultimate pressure without gas ballast, free-field measurement at a distance of 1 meter. Page 21... -
Page 22: Figure 1 Dimensional Drawing Nes40Ex
A351-18-880A - Technical data Figure 1 Dimensional drawing nES40ex Item Description Item Description Inlet port Gas ballast connection PT100 temperature sensor Gas ballast device Mounting 3 M8x7 Oil drain Exhaust port Oil sight glass Cooling air Oil filling Space for exhaust filter Exhaust port: DN40/1.5 inch ANSI exchange and cooling Inlet port: DN40/1.5 inch ANSI... -
Page 23: Figure 2 Dimensional Drawing Nes65Ex
A351-18-880A - Technical data Figure 2 Dimensional drawing nES65ex Item Description Item Description Inlet port Gas ballast connection Mounting 4 M8x7 Gas ballast device PT100 temperature sensor Oil drain Exhaust port Oil sight glass Cooling air Oil filling Space for exhaust filter Exhaust port: DN40/1.5 inch ANSI exchange and cooling Inlet port: DN40/1.5 inch ANSI... -
Page 24: Figure 3 Dimensional Drawing Nes100Ex
A351-18-880A - Technical data Figure 3 Dimensional drawing nES100ex Item Description Item Description Inlet port Gas ballast connection Mounting 4 M10x10 Gas ballast device PT100 temperature sensor Oil drain Exhaust port Oil sight glass Cooling air Oil filling Space for exhaust filter Exhaust port: DN40/1.5 inch ANSI exchange and cooling Inlet port: DN40/1.5 inch ANSI... -
Page 25: Figure 4 Dimensional Drawing Nes200Ex
A351-18-880A - Technical data Figure 4 Dimensional drawing nES200ex Item Description Item Description Inlet port Gas ballast connection 16KF Mounting 4 M10x10 Gas ballast device Exhaust port PT100 temperature sensor Cooling air Oil filling Space for exhaust filter Oil drain exchange and cooling Oil sight glass Space for the motor’s... -
Page 26: Figure 5 Dimensional Drawing Nes300Ex
A351-18-880A - Technical data Figure 5 Dimensional drawing nES300ex Item Description Item Description Inlet port Gas ballast connection 16KF Mounting 4 M10x10 Gas ballast device PT100 temperature sensor Oil drain Exhaust port Oil filling Cooling air Oil sight glass Space for exhaust filter Exhaust port: DN50/2.0 inch ANSI exchange and cooling Inlet port: DN50/2.0 inch ANSI... -
Page 27: Figure 6 Dimensional Drawing Nes630Ex
A351-18-880A - Technical data Figure 6 Dimensional drawing nES630ex Item Description Item Description Inlet port DN100 Oil filling Exhaust port DN100 Oil sight glass Motor Connection Oil drain Space to access electrical Oil level switch connections Pressure transmitter Cooling air Mounting 4 M16x14 Gas ballast connection 16KF Plugs for connection of external... -
Page 28: Figure 7 Pumping Speed Nes40Ex
A351-18-880A - Technical data Figure 7 Pumping speed nES40ex No gas ballast With gas ballast Figure 8 Pumping speed nES65ex No gas ballast With gas ballast Page 28... -
Page 29: Figure 9 Pumping Speed Nes100Ex
A351-18-880A - Technical data Figure 9 Pumping speed nES100ex No gas ballast With gas ballast Figure 10 Pumping speed nES200ex No gas ballast With gas ballast Page 29... -
Page 30: Figure 11 Pumping Speed Nes300Ex
A351-18-880A - Technical data Figure 11 Pumping speed nES300ex No gas ballast With gas ballast Figure 12 Pumping speed nES630ex No gas ballast With gas ballast Page 30... -
Page 31: Ordering Information
(10 <Ta< 40 °C) X (o) = External (i) = Internal Edwards nES single stage EX series bare shaft pumps have the same pump protection features, excluding motor related components. Pumps are supplied ready for local motor fitting. Table 8 Ordering information bare shaft pump... - Page 32 A351-18-880A - Technical data Category 2 comprises products designed to be capable of remaining within their operational parameters, stated by the manufacturer, and based on a high level of protection for their intended use, in areas in which explosive atmospheres caused by mixtures of air and gases, vapours, mists or air/dust mixtures are likely to occur.
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Page 33: Accessories
See specification at the end of the document. connection 4 to 20 mA output. Accessories CAUTION: Stability of pump is ensured with accessories of Edwards; mounting of any other accessory will engage the responsibility of user concerning stability of pump. Table 10 Accessories Description Part number... -
Page 34: Spare Parts
Edwards Ultragrade Extend oil is a synthetic oil particularly suited for the ATEX pumps. Only original Edwards Ultragrade Endurance Extend 110 oil is to be used in the pumps. A non respect of this will entail a loss of the pump's ATEX certification. -
Page 35: Transport And Storing
A351-18-880A - Transport and storing Transport and storing Transport and packaging The pump passes a rigorous operating test in our factory and are packaged to avoid transport damages. Check packaging on delivery for transport damages. Packing materials should be disposed of according to environmental laws or recycled. These operating instructions are part of the consignment. -
Page 36: Storage
A351-18-880A - Transport and storing CAUTION: Obey all safety regulations. CAUTION: Use only applicable lifting devices correct for the pump weight. Check the nameplate. CAUTION: Only use the lifting lugs when moving the pump. Storage CAUTION: Before storing the pump for a long time, put it back in its original condition (blank off inlet and exhaust ports with the shipping seals, and drain the oil) in a dry place at room temperature. - Page 37 (Silicagel). CAUTION: If the pump has been stored for over one year, standard maintenance must be done and the oil replaced before the pump is put into service. We recommend that you contact Edwards. Page 37...
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Page 38: Installation
A351-18-880A - Installation Installation WARNING: Obey the following instructions to make sure a safe start. Only a trained ATEX specialist can start the pump. WARNING: Before installing the pump, disconnect it from the electrical power supply. WARNING: Obey all safety regulations. The pump is only ATEX if it is controlled by an applicable control system, if all sensors and switches are connected and integrated into the controls algorithms. -
Page 39: Connection To The System
A351-18-880A - Installation Connection to the system Intake side CAUTION: The pump should be connected to the inlet line without any tension. Use the flex lines or the pipe unions in your inlet and exhaust lines so they can be easily removed for pump maintenance. -
Page 40: Electrical Connections
A351-18-880A - Installation The maximum exhaust pressure must not be more than 1.15 bara (0.15 bar relative), nor fall under atmospheric pressure minus 15 mbar. WARNING: The cross-section of the exhaust line should be at least the same as the pump's exhaust port. -
Page 41: Motor Protection Device
A351-18-880A - Installation Figure 13 Wiring Only approved personnel can do the installation procedure in accordance with the applicable safety rules, see IEC 60204-1 and IEC 61010-1. Connect the pump's motor to the right supply voltage via the connections in the junction box (see Wiring on page 41). -
Page 42: Temperature Sensor Pt100
A351-18-880A - Installation Temperature sensor PT100 A temperature sensor type PT100 is placed on the vacuum generator close to the exhaust valves. The temperature sensor monitors the pump temperature. The PT100 manual is attached at the end of the instruction manual. See next page for threshold values. -
Page 43: Figure 14 Pump System Overview
A351-18-880A - Installation Figure 14 Pump System Overview Not in scope of supply Isolation valve Inlet pressure control Inlet gas temperature control Motor temperature control Pump temperature control Oil case pressure control Oil case oil level control Exhaust filter 10. Gas ballast Page 43... -
Page 44: Figure 15 Decision Diagram
A351-18-880A - Installation Figure 15 Decision Diagram Input warning = TI1<Tmax or 1.5<PI1<1.65 bara and TI1>50 °C Enter default = TI1>Tmax or PI1 >1.65 bara and TI1<50 °C during at least 15 seconds or PI1 >1.65 bara and TI1<50 °C or PI1>2 bara or LI1 = 0 during at least 20 seconds... -
Page 45: Figure 16 Wiring Diagram
A351-18-880A - Installation Figure 16 Wiring diagram Classified zone Out of classified zone The barriers must have: U0 < Ui I0 < II P0 < Pi The cables must have: Ccable < Cmax barrier - Cgauege Lcable < Lmax barrier - Lgauge CI = 0 CI = 40 nF C = 0... -
Page 46: Figure 17 Example Of Electrical Diagram
A351-18-880A - Installation Figure 17 Example of electrical diagram Page 46... -
Page 47: Figure 18 Example Of Electrical Diagram
A351-18-880A - Installation Figure 18 Example of electrical diagram Page 47... -
Page 48: Start The Pump
A351-18-880A - Installation Start the pump Control Parameters for the Ignition Prevention System nES Single Stage EX Series ATEX Cat 2 pumps: 40 - 65 - 100 - 200 and 630 Temperature Sensor Oil Casing Pressure Oil Level Sensor PT100 Sensor Ω... - Page 49 A351-18-880A - Installation CAUTION: Before starting the pump make sure that the attached accessories meet the requirements of your application and safe operation established. WARNING: Do not expose any body parts to vacuum. Do not lay the hand on the intake. Exposure of any body part to vacuum can result in a rush of blood to the exposed part.
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Page 50: Operation
A351-18-880A - Operation Operation Operation WARNING: Do not start the pump more than six times within one hour to avoid overloading the motor. If frequent starts are needed, the pump shall run continuously and be linked to the vacuum vessel by means of a valve. In that case, regulation will be made by the valve and not by start/stop of the pump. - Page 51 Changing the type of gas ballast can change the ATEX temperature class. Consult us before any gas ballast retrofit is undertaken. Such a modification must be done by Edwards Service only, and the pump will be given a new part number.
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Page 52: Shut Down
A351-18-880A - Operation In cyclic process operation, the pump should not be switched off during the intervals between the individual working phases, but should continue to run with gas ballast valve open and intake port closed (if possible via a valve). Power consumption is minimal when the pump is operating at ultimate pressure. -
Page 53: Maintenance
The cleaning must be done with cloths/products avoiding static charges. Never mount used seals; always mount new seals. Only the use of genuine Edwards parts is allowed. Any integration of non Edwards parts or non authorized repairs will cancel the pump ATEX certification and will waive all Edwards ATEX responsibilities. -
Page 54: Maintenance Intervals
To simplify the maintenance work we recommend combining several jobs. Service at Edwards Vacuum Service Technology Centre WARNING: If you send a pump to us, indicate whether the pump is free of substances damaging to health or whether it is contaminated. -
Page 55: Maintenance Work
Also incorrect maintenance can cause a pump temperature increase, which can influence the pump ATEX temperature rating. In connection with this, you may be interested in the Edwards Vacuum practical seminars, in which maintenance and testing information for the pumps is conveyed by qualified trainers. -
Page 56: Observe The Safety Regulations
A351-18-880A - Maintenance Observe the safety regulations Check to be done, depending of process, at least weekly. Oil change Tool required: oil filter key. Always change the oil when the pump is switched off but still at working temperature. If there is a risk of the oil being polymerized by the connected process, change the oil immediately after operation of the pump. -
Page 57: Replacing The Exhaust Filters
A351-18-880A - Maintenance Replacing the exhaust filters The pumps: nES40ex, nES65ex, nES100 Tools required: Allen key 6 mm Box wrench 10 mm. When the exhaust filter elements are clogged, the overpressure (bypass) valves open and the filters are bypassed. Oil mist at the exhaust and/or high oil consumption are signs that the exhaust filters are clogged. -
Page 58: Obey The Safety Regulations
A351-18-880A - Maintenance 7. Assemble the flat gasket, item 2. 8. Assemble the whole exhaust filter unit in the oil casing, torque of the 4 screws: 23 N.m. 9. Check the earth continuity between the nut, item 3, and the motor ground connection. -
Page 59: Figure 21 Replace The Exhaust Filters
A351-18-880A - Maintenance The exhaust filters must be replaced more frequently if subjected to increased oil cracking products at high operating temperatures and/or aggressive media. Figure 21 Replace the exhaust filters Exhaust filter cover Earth lid Screw Spring Flat gasket ExF grid Gasket Disassemble the exhaust filter cover, item 1 (4 screws, item 2). - Page 60 A351-18-880A - Maintenance Check the earthing continuity between each ExF grid, item 4, and the motor Ω grounding: the measured value shall be lower than 0.1 under an a.c. current of around 10 ampere, the no-load voltage should not be more than 12 volts. Reassemble the flat gasket, item 3.
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Page 61: Nes300Ex
A351-18-880A - Maintenance Figure 22 nES200ex earth continuity check The measured value shall be lower than 0.1 Ω under an AC current of around 10 ampere, the no-load voltage shouldn’t be greater than 12 volts. Exhaust filter support. Check earth continuity between the exhaust filter grid and the motor ground (4 check points). -
Page 62: Earthing Continuity Test
A351-18-880A - Maintenance Remove them from the oil casing (ET1/1). Make sure that the new exhaust filters (ET3/25) have the O-ring (opposite side of overpressure valve) and lubricate them using Vacuum Grease 850. Replace the O-ring (ET3/26p) of the exhaust plate (ET3/18). ... -
Page 63: Nes300Ex
A351-18-880A - Maintenance Figure 23 nES300ex earth continuity check Check earth continuity between the inner metal sheet and the motor ground. Check earth continuity between the grid and the motor ground. Check earth continuity between the filter and the motor ground. Check earth continuity between the inlet flange and the motor ground. -
Page 64: Checking The Float Valve
A351-18-880A - Maintenance Test the earth continuity Before carrying out the test, check visually to see if all earth conductors are connected. Acceptance criteria: Ω Resistance <0.3 at 10 A a.c. and 12 V a.c. Motor not connected to the mains. ... -
Page 65: Cleaning The Intake Port Dirt Trap
A351-18-880A - Maintenance Cleaning the intake port dirt trap and checking the isolation valve. Cleaning the intake port dirt trap Required tools: Allen key male 8 mm. A dirt trap for coarse particles is located in the intake flange of the pump. It should be kept clean to avoid reduction of the pumping speed. Remove four screws and take off the intake flange and gasket. -
Page 66: Cleaning The Gas Ballast Air Filter
A351-18-880A - Maintenance Cleaning the gas ballast air filter Required tools: none. On the big flow gas ballast, the inlet filter must be changed when the gas ballast flow decreases. Filter P/N 710 20 852. CAUTION: A clogged gas ballast filter can reduce the gas flow and change dilution conditions, altering ATEX risk analysis conditions. -
Page 67: Figure 25 Using The Tension Meter
A351-18-880A - Maintenance Figure 25 Using the tension meter Set the O-ring to 10 mm position. Place the tool on the centre of the longest V-belt and mark the belt. Push the tool downward until you reach a 10 mm bending. The result of the measurement should be between 15 N and 58 N. -
Page 68: Lubricating The Bearings
To do so, remove the rear and front covers (97 and 136) and check the grease on the bearings. If the grease has resinified, remove the frontal and coupling end bearings, clean and re-lubricate them. Use special Edwards high temperature grease. This is available in Edwards service kits. Table 16 Amount of grease per bearing... -
Page 69: Replacement Of Electrical Motor
A351-18-880A - Maintenance Replacement of electrical motor Please consult us for specific maintenance work to be done, for example, bearing replacement. The motor can only be exchanged with an identical one from the same manufacturer and ATEX marking. In case other motors are used, the pump loses its ATEX certification. Procedure for checking the ignition prevention system A complete functionality test of the ignition prevention system has to be done before the pump is brought into service and after each maintenance operation at the pump or at least... -
Page 70: Motor Installation (For Bare Shaft Non-Atex Pumps)
A351-18-880A - Maintenance General Remarks We reserve the right to alter the design or any data given in these operating instructions. The illustrations are not binding. Never mount used seals; always mount new seals. Motor installation (for bare shaft non-ATEX pumps) It is possible to install any type of electric or hydraulic motor of which the specifications comply to the technical data, with flange and shaft corresponding to: M112 - B14 (FT130) size as per standard IEC60072-1 (for Europe and wide motor... -
Page 71: Motor Installation Instructions For Nes200Ex Pump
A351-18-880A - Maintenance Figure 27 nES300ex Motor coupling half position CEI Motor NEMA Motor 18 Nm Loctite® 243 Never seize for anti-fretting corrosion Lock ring in contact with end of shaft Motor installation instructions for nES200ex pump 1. Place a suitable container underneath the pump to catch the oil spillage. Remove the drain plug. -
Page 72: Figure 29 Remove The Pump Coupling Housing
A351-18-880A - Maintenance 2. Remove the pump coupling housing, disconnect the finned oil cooler and unscrew the two connectors (1 on oil casing and 1 on tube) as explained in following steps: Figure 29 Remove the pump coupling housing Disconnect the finned oil cooler, unscrew the two (2) connectors (1 on oil casing and 1 on tube) Figure 30 Coupling housing removal A Remove three screws securing coupling housing. -
Page 73: Figure 31 Proper Orientation
A351-18-880A - Maintenance 3. Place motor in vertical orientation so that motor shaft facing upwards. Figure 31 Proper orientation 4. Make sure the turbine support on a 3mm thickness spacer. Figure 32 Turbine support spacing 3 ±0.5 mm thickness spacer Page 73... -
Page 74: Figure 33 Tighten Assembly
A351-18-880A - Maintenance 5. Tighten the screw to 2 nM torque. Apply Loctite® 243. Figure 33 Tighten assembly 6. In order to assemble motor and coupling housing on pump, follow step 2 in reverse order. Figure 34 Reassemble Connect finned oil cooler to the connectors Page 74... -
Page 75: Electrical Connections
A351-18-880A - Maintenance 7. Cover the pump. Mount lifting bar on the pump. Figure 35 Replace pump cover Cover pump and lifting bar mounting Pump oil filling 8. Refit the drain plug. Pour recommended quantity of oil in the pump. Electrical connections Always use a protection system, including an over-current protection and an electrical disconnecting device, between the pump and the electric power supply. -
Page 76: Fault Finding
A351-18-880A - Fault finding Fault finding Table 17 Fault finding Fault Possible cause Remedy Pump does not Pump is connected incorrectly Connect the pump correctly. start Motor protection switch Set motor protection switch properly. incorrectly set. Operating voltage does not Replace the motor. - Page 77 A351-18-880A - Fault finding Table 17 Fault finding Fault Possible cause Remedy Pump gets too Cooling air supply is obstructed Set the pump up correctly. Cooler is dirty. Clean the cooler. Ambient temperature is too Set the pump up correctly. high.
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Page 78: Spare Parts
You can find part numbers in the spare parts list. The pump loses its ATEX certification if non-genuine Edwards parts are used. Consumables and main spare parts kits for the pump are usually available on stock. The list of these parts is given here after and in the spare parts table where the contents of each kit is detailed. -
Page 79: Figure 36 Nes40 Ex Atex Cat 2 Spares Parts
A351-18-880A - Spare parts Figure 36 nES40 Ex ATEX CAT 2 Spares Parts Item Description MOTOR 1.5 kW 230/400 V, 50 Hz & 460 V, 60 Hz IICT4 RUBBER FEET KIT ATEX CAT 2 COUPLING HOUSING ATEX CAT 2 COUPLING ATEX CAT2 SUCTION FLANGE G1 1/4 PIPE GB STEEL GAS BALLAST ATEX CAT 2... -
Page 80: Table 18 Nes40 Ex Atex Cat 2 Maintenance Kit
A351-18-880A - Spare parts Table 18 nES40 Ex ATEX CAT 2 maintenance kit Quantity Description Protection cover Sticker Exhaust flange gasket O-ring Plug G 1'' Plug G 3/4'' O-ring Sticker Exhaust filter Spring for Exhaust filter in stainless steel. Table 19 nES40 Ex ATEX CAT 2 repair kit Quantity Description Exhaust valve Valve stop... -
Page 81: Figure 37 Nes65 Ex Atex Cat 2 Spares Parts
A351-18-880A - Spare parts Figure 37 nES65 Ex ATEX CAT 2 Spares Parts Item Description MOTOR 2.2 kW 230/400 V, 50 Hz & 460 V, 60 Hz IICT4 RUBBER FEET KIT ATEX CAT 2 COUPLING HOUSING ATEX CAT 2 COUPLING ATEX CAT2 SUCTION FLANGE G1 1/4 PIPE GB STEEL GAS BALLAST ATEX CAT 2... -
Page 82: Table 20 Nes65 Ex Atex Cat 2 Maintenance Kit
A351-18-880A - Spare parts Table 20 nES65 Ex ATEX CAT 2 maintenance kit Quantity Description Protection cover Sticker Exhaust flange gasket O-ring Plug G 1'' Plug G 3/4'' O-ring Sticker Exhaust filter Spring for Exhaust filter in stainless steel Table 21 nES65 Ex ATEX CAT 2 repair kit Quantity Description Exhaust valve Valve stop... -
Page 83: Figure 38 Nes100 Ex Atex Cat 2 Spares Parts
A351-18-880A - Spare parts Figure 38 nES100 Ex ATEX CAT 2 Spares Parts Item Description MOTOR 3 kW 230/400 V, 50 Hz & 460 V, 60 Hz IICT4 RUBBER FEET KIT ATEX CAT 2 COUPLING HOUSING ATEX CAT 2 COUPLING ATEX CAT2 SUCTION FLANGE G1 1/4"... -
Page 84: Table 22 Nes100 Ex Atex Cat 2 Maintenance Kit
A351-18-880A - Spare parts Table 22 nES100 Ex ATEX CAT 2 maintenance kit Quantity Description Protection cover Sticker Exhaust flange gasket O-ring Plug G 1'' Plug G 3/4'' O-ring Sticker Exhaust filter Spring for Exhaust filter in stainless steel Table 23 nES100 Ex ATEX CAT 2 repair kit Quantity Description Exhaust valve Valve stop... -
Page 85: Figure 39 Nes200 Ex Atex Cat 2 Spares Parts
A351-18-880A - Spare parts Figure 39 nES200 Ex ATEX CAT 2 Spares Parts Item Description MOTOR 5.5 kW 230/400 V, 50 Hz & 460 V, 60 Hz IICT4 PIPE KIT ATEX CAT 2 COUPLING HOUSING SV200 ATEX CAT 2 COUPLING ATEX CAT2 SUCTION FLANGE G2"... -
Page 86: Table 24 Nes200 Ex Atex Cat 2 Maintenance Kit
A351-18-880A - Spare parts Table 24 nES200 Ex ATEX CAT 2 maintenance kit Quantity Description O-ring Plug G 1'' O-ring Plug G 3/4'' Exhaust filter Spring for Exhaust filter in stainless steel. Protection cover Exhaust flange gasket Table 25 nES200 Ex ATEX CAT 2 repair kit Quantity Description Exhaust valve Valve stop... -
Page 87: Figure 40 Nes300 Ex Atex Cat 2 Spares Parts (1 Of 3)
A351-18-880A - Spare parts Figure 40 nES300 Ex ATEX CAT 2 Spares Parts (1 of 3) Item Description MOTOR EUR IEC 230 / 400 V ± 10%, 50 Hz 460 V ± 10%, 60 Hz COUPLING EUR IEC MOTORS FLOAT VALVE KIT INTAKE FLANGE EUR G2'' VACUUM GENERATOR EUR G2'' RADIATOR... -
Page 88: Table 26 Nes300 Ex Atex Cat 2 Maintenance Kit
Set of 3 vanes Gasket set Ball bearing Motor coupling Exhaust filter Spring for Exhaust filter in stainless steel. GB Filter Oil Filter Rotor sleeves Glass oil sight glass For additional information regarding servicing and spares, contact Edwards. Page 88... - Page 89 Complete the Declaration (HS2) and send it to Edwards before you dispatch the equipment. It is important to note that this declaration is for Edwards internal use only, and has no relationship to local, national or international transportation safety or environmental requirements.
- Page 90 Read the Return of Edwards Equipment – Procedure (HS1) before you complete this Declaration • Contact Edwards to obtain a Return Authorisation Number and to obtain advice if you have any questions • Send this form to Edwards before you return your equipment as per the procedure in HS1...
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- Page 95 Download the latest documents from www.edwardsvacuum.com/HSForms/, follow the procedure in HS1, fill in the electronic HS2 form, print it, sign it, and return the signed copy to Edwards. Note: If we do not receive a completed HS2 form, we will not accept the return of the...
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