Edwards E1M40, E2M40, E1M80, E2M80, E2M40S Instruction Manual

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Instruction Manual

E1M40, E1M80, E2M40 and E2M80

E2M40S and E2M80S Rotary Vacuum Pumps

A344-02-880

Issue J Original

Description

E1M40, 240 V, 50 Hz, single-phase A344-01-960 E1M80, 208 V, 50 Hz/208-230 V, 60 Hz/460 V,

E1M40, 220-240/380-415 V, 50 Hz, three-phase A344-01-935 E2M80, 220-240/380-415 V, 50 Hz, three-phase A365-01-935

E1M40, 208 V, 50 Hz/208-230 V, 60 Hz/460 V, 60 Hz, three-phase

E2M40, 240 V, 50 Hz, single-phase A364-01-960 E2M40S, 220-240/380-415 V, 50 Hz, three-phase A364-13-935

E2M40, 220-240/380-415 V, 50 Hz, three-phase A364-01-935 E2M40S, 208 V, 50 Hz/208-230 V, 60 Hz/460 V,

E2M40, 208 V, 50 Hz/208-230 V, 60 Hz/460 V, 60 Hz, three-phase

E1M80, 220-240/380-415 V, 50 Hz, three-phase A345-01-935

Item

Number

A344-02-982 E2M80, 208 V, 60 Hz/208-230 V, 60 Hz/460 V,

A364-02-982 E2M80S, 208 V, 50 Hz/208-230 V, 60 Hz/460 V,

Description

60 Hz, three-phase

Item

Number

A345-02-982

A365-02-982

A364-13-982

A365-13-982

A344-02-880 Issue J

Contents

Section Page

1Introduction .......................................................................................1

1.1 Scope and definitions ................................................................................................... 1

1.2 Description ................................................................................................................ 3

1.3 Gas-ballast ................................................................................................................ 3

2Technical data ....................................................................................5

2.1 Operating and storage conditions ..................................................................................... 5

2.2 Performance .............................................................................................................. 5

2.3 Mechanical data .......................................................................................................... 8

2.4 Electrical data: single-phase motor ................................................................................... 8

2.5 Electrical data: three-phase motors .................................................................................. 8

2.6 Lubrication data ......................................................................................................... 9

3 Installation ....................................................................................... 11

3.1 Safety ..................................................................................................................... 11

3.2 System design considerations ......................................................................................... 11

3.3 Unpack and inspect ..................................................................................................... 12

3.4 Locate the pump ........................................................................................................ 13

3.5 Fill the pump with oil .................................................................................................. 13

3.5.1 Recommended pump oils ..............................................................................................13

3.5.2 Filling procedure ........................................................................................................ 14

3.6 Electrical installation: single-phase motor .........................................................................14

3.7 Electrical installation: three-phase motors ......................................................................... 15

3.7.1 Connect the pump to your electrical supply ....................................................................... 15

3.7.2 Check the direction of rotation ...................................................................................... 17

3.8 Connect the pump inlet to your system .............................................................................17

3.8.1 General information ....................................................................................................17

3.8.2 Connect to ISO40 fittings .............................................................................................. 18

3.8.3 Connect to NW40 fittings .............................................................................................. 18

3.9 Connect the pump outlet to your system ...........................................................................19

3.10 Gas-ballast inlet connection ..........................................................................................19

3.11 Leak-test the system ...................................................................................................19

4Operation ........................................................................................21

4.1 Gas-ballast control .....................................................................................................21

4.2 Start-up procedure .....................................................................................................21

4.3 To achieve ultimate vacuum .......................................................................................... 22

4.4 To pump condensable vapours ........................................................................................ 22

4.5 To decontaminate the oil ..............................................................................................22

4.6 Unattended operation ..................................................................................................23

4.7 Shut-down ................................................................................................................23

ITR 20465

A344-02-880 Issue J

Contents

5Maintenance .....................................................................................25

5.1 Safety ..................................................................................................................... 25

5.2 Maintenance plan .......................................................................................................26

5.3 Check the oil-level ..................................................................................................... 27

5.4 Replace the oil .......................................................................................................... 27

5.5 Replace the fine oil-filter .............................................................................................28

5.6 Replace the gas-ballast filter .........................................................................................29

5.7 Inspect and clean the inlet-filter .....................................................................................30

5.8 Clean the oil-level sight-glass .........................................................................................31

5.9 Clean the motor fan-cover ............................................................................................32

5.10 Clean and overhaul the pump .........................................................................................32

5.11 Test the motor condition ..............................................................................................32

5.12 Fit new blades ........................................................................................................... 32

5.13 Basic fault-finding ......................................................................................................33

5.13.1 The pump has failed to start .......................................................................................... 33

5.13.2 The pump fails to achieve its specified performance .............................................................33

5.13.3 The pump is noisy ....................................................................................................... 34

5.13.4 The pump is too hot ....................................................................................................34

5.13.5 The vacuum is not fully maintained after the pump is switched off ........................................... 34

5.13.6 The pumping speed is poor ............................................................................................ 34

5.13.7 There is an external oil leak ..........................................................................................35

6Storage and disposal ...........................................................................37

6.1 Storage ...................................................................................................................37

6.2 Disposal ................................................................................................................... 37

7Spares and accessories .........................................................................39

7.1 Introduction ............................................................................................................. 39

7.2 Service .................................................................................................................... 39

7.3 Spares ..................................................................................................................... 40

7.4 Accessories ...............................................................................................................40

7.4.1 Inlet dust-filter .......................................................................................................... 40

7.4.2 Inlet catchpot ...........................................................................................................41

7.4.3 High-capacity inlet dust-filter ........................................................................................ 41

7.4.4 Inlet chemical-trap .....................................................................................................41

7.4.5 Outlet catchpot ......................................................................................................... 41

7.4.6 Outlet mist-filter (clean applications) .............................................................................. 42

7.4.7 Outlet mist-filter (toxic applications) ............................................................................... 42

7.4.8 External oil filter .......................................................................................................42

7.4.9 Oil-level monitor ........................................................................................................43

7.4.10 Solenoid-operated gas-ballast control valve .......................................................................43

7.4.11 Vibration isolators ......................................................................................................44

Edwards and the Edwards logo are trademarks of Edwards Limited.

A344-02-880 Issue J

Appendix A E2M40S and E2M80S (Superpumps)....................................................... 45

A1 Introduction ..................................................................................... 45

A1.1 Scope of this appendix ................................................................................................. 45

A1.2 Description ...............................................................................................................45

A1.2.1 Construction .............................................................................................................45

A1.2.2 Purpose of dry nitrogen gas-ballast .................................................................................. 45

A2 Technical data .................................................................................. 47

A2.1 Performance ............................................................................................................. 47

A2.2 Lubrication data ........................................................................................................47

A2.3 Electrical data: three-phase motors ................................................................................. 48

A3 Installation ....................................................................................... 49

A3.1 Pump external fittings, connections and controls .................................................................49

A3.2 Fill the pump with oil .................................................................................................. 51

A4 Operation ........................................................................................ 53

A4.1 Start-up ..................................................................................................................54

A4.2 Shut-down ................................................................................................................55

Contents

A5 Spares ............................................................................................ 57

For return of equipment, complete the HS Forms at the end of this manual.

Illustrations

Figure Page

1The Rotary Vacuum Pump (E1M40 shown) ...........................................................................2

2Dimensions E1M40 and E2M40 (mm) ..................................................................................6

3Dimensions E1M80 and E2M80 (mm) ..................................................................................7

4Electrical supply connection, single-phase motor, 240 V 50 Hz ................................................. 14

5Electrical supply connection, three-phase motors, 220-240 V 50Hz, 208-230 V 60Hz, or 208 V 50Hz ..15

6Electrical supply connection, three-phase motors, 380-415 V 50 Hz, or 460 V 60 Hz ........................ 16

7Connect inlet to ISO40 fittings ........................................................................................18

8Connect inlet to NW40 inlet fittings .................................................................................18

9Fine oil-filter and gas-ballast bearing-plate locations ............................................................28

10 Remove and replace inlet-filter ......................................................................................30

11 Oil-level sight-glass assembly ......................................................................................... 31

12 Accessories ...............................................................................................................44

A1 External oil-filtration unit tapping points ...........................................................................49

A2 External fittings, connections and controls .........................................................................50

A3 Typical dry nitrogen gas circuit ......................................................................................54

A344-02-880 Issue J

Contents

Tables

Table Page

1Electrical data (single-phase motor) ..................................................................................8

2Electrical data (three-phase motors) ................................................................................. 9

3Checklist .................................................................................................................12

4Maintenance plan .......................................................................................................26

A1 Electrical data (three-phase motors) ................................................................................ 48

Associated publications

Publication title Publication number

Vacuum pump and vacuum system safety P300-20-000 Vibration isolators A248-01-880 MF mist filters and CP catchpots A461-03-880 E1M40/80, E2M40/80 external oil filtration system adaptor kit A540-00-880 EOF external oil filtration system A540-01-880

Trademark credits

Fomblin® is a registered trademark of Ausimont SpA.

Edwards and the Edwards logo are trademarks of Edwards Limited.

A344-02-880 Issue J

1Introduction

1.1 Scope and definitions

This manual provides installation, operation and maintenance instructions for the Edwards E1M40, E1M80, E2M40, E2M80 Rotary Vacuum Pumps. You must use your pump as specified in this manual.

Read this manual before you install and operate your pump. Important safety information is highlighted as WARNING and CAUTION instructions; you must obey these instructions. The use of WARNINGS and CAUTIONS is defined below.

WARNING

Warnings are given where failure to observe the instruction could result in injury or death to people.

CAUTION

Cautions are given where failure to observe the instruction could result in damage to the equipment, associated equipment and process.

Introduction

The units used throughout this manual conform to the SI international system of units of measurement.

The following warning symbols are on the pump:

Warning – refer to accompanying documentation.

Warning – risk of electric shock.

Warning – hot surfaces.

Warning – do not block the pump outlet.

A344-02-880 Issue J

AA/5001/A

1. Disposable oil-filter

2. Oil return, from external oil mist filter

3. Lifting-eyes

4. Inlet-port

5. Outlet-port

6. Oil filler-plug

7. Oil-level sight-glass

8. Oil drain-tap

9. Connection for oil pressure gauge accessory

10. Motor terminal-box

11. Gas-ballast control inlet and gas-ballast control

Introduction

Figure 1 - The Rotary Vacuum Pump (E1M40 shown)

Edwards and the Edwards logo are trademarks of Edwards Limited.

A344-02-880 Issue J

1.2 Description

Note: The following section refers to Figure 1 unless stated otherwise.

The E1M40, E1M80, E2M40 and E2M80 pumps are single or two-stage oil-sealed, high-vacuum pumps designed for reliable, long-term operation in both laboratory and industrial environments. A single-phase motor or a four-pole three-phase motor provides direct-drive through a flexible coupling. The pumps are free-standing mounted on steel runners.

The E1M (single-stage) pumps have a high-vacuum rotor and stator assembly with integral sliding-vane oil-pump. The E2M (two-stage) pumps have an additional low-vacuum rotor and stator assembly.

Lubrication is provided by a sliding vane oil pump. Oil is drawn into the pump through a wire mesh strainer. The oil is pumped to a spring-loaded distributor valve. The distributor valve directs a lightly-pressurised supply of oil to the main vacuum-pump and by-passes the excess back to the oil reservoir. Some of the excess oil is re-directed through a large area, fine-pore filter and some through a relief-valve. When you switch off an E2M40 or E2M80 pump with the gas ballast control closed, the spring loaded distributor valve provides oil and air suckback protection. The distributor valve provides only oil suckback protection when you switch off an E1M40 or E1M80 pump. To obtain air suckback protection when you switch off an E1M40 or E1M80 pump, you must fit a solenoid operated gas-ballast control valve: refer to the information in Section 1.3.

You can inspect the level and condition of oil in the oil box through an oil-level sight-glass (7). An oil filler-plug (6) is fitted at the top of the oil box. An oil drain-tap (8) is fitted at the bottom of the oil box.

Introduction

The inlet-port flange (4) is compatible with ISO40 or NW40 fittings. The outlet-port (5) has an NW25 flange.

The gas-ballast control (11) allows you to control the introduction of gas-ballast when pumping high vapour loads. Refer to Section 1.3 for more information about gas-ballast.

Refer to Section 7 for details about vibration isolators and other recommended accessories.

1.3 Gas-ballast

To pump high vapour loads, gas-ballast is delivered into the pump to prevent condensation of the vapour carried by the pumped gases. This system reduces oil contamination and pump corrosion caused by condensed vapour from the pumped gases.

You can introduce air or an inert gas into the low vacuum stage of the pump through the gas-ballast inlet (Figure 9, item 3). A filter/silencer is fitted in the gas-ballast system, to prevent the entry of dust into the pump and to improve silencing. You can control the gas-ballast either manually or remotely.

Note that the E1M40 and E1M80 pumps have a permanent air bleed through the gas-ballast inlet.

A344-02-880 Issue J

Introduction

For manual control, use the gas-ballast control (Figure 9, item 4). The pumps are supplied with an open gas-ballast inlet (Figure 9, item 3). If you leave this inlet open to the atmosphere, then:

 With the gas-ballast control (Figure 9, item 4) open, when you switch the pump off, the pressure inside the

pump will rise to atmospheric pressure

 With the gas-ballast control closed, when you switch the pump off:

 E1M40 and E1M80: the pressure inside the pump will slowly rise to atmospheric pressure. (To maintain the

vacuum inside the pump, fit a solenoid operated gas-ballast control valve.)

 E2M40 and E2M80: the vacuum will be maintained inside the pump.

For remote control, fit a solenoid-operated gas-ballast control valve (available as an accessory from Edwards, refer to Section 7) to the gas-ballast inlet and open the gas-ballast control. Connect the gas-ballast valve to your control system so that the valve is closed when the pump is switched off and if the electrical supply to the pump is interrupted. Under these circumstances, when the pump is switched off, the vacuum will be maintained inside the pump.

For more information about the use of gas-ballast, refer to Sections 3.10 and 4.1.

Edwards and the Edwards logo are trademarks of Edwards Limited.

A344-02-880 Issue J

2Technical data

2.1 Operating and storage conditions

Ambient temperature range (operation) 12 to 40°C

Normal surface temperature of the pump (at ultimate vacuum, ambient temperature of 20°C)

Maximum humidity (operation) 90% RH

Ambient temperature range (storage) -30 to 70°C

2.2 Performance

Note: Where total pressures are shown in the technical data tables, measurements were taken using an untrapped

total pressure capacitance diaphragm gauge on a header, as specified by Pneurop standards.

E1M40 E2M40 E1M80 E2M80

Maximum Displacement m

50 Hz electrical supply 42.5 42.5 80 80

60 Hz electrical supply 50.5 50.5 96 96

Maximum Speed – Pneurop

50 Hz electrical supply 37 37 74 74

60 Hz electrical supply 44 44 90 90

Motor rotational speed

50 Hz electrical supply 1,410 1,410 1,420 1,420

60 Hz electrical supply 1,720 1,720 1,720 1,720

Ultimate vacuum

without gas-ballast mbar 5 x 10

(partial pressure) Pa (5) (1 x 10-2)(5)(1 x 10

without gas-ballast mbar 1 x 10

(total pressure) Pa (1 x 10-1)(1 x 10

with full gas-ballast mbar 4 x 10

(partial pressure) Pa (4 x 101)(5 x 10-1)(4 x 10

Maximum permitted outlet pressure

(at full pump throughput) bar gauge 0.5 0.5 0.5 0.5

Maximum water vapour inlet pressure mbar 40 7 30 5

Maximum water vapour pumping rate kgh

Maximum gas-ballast flow m

3h-1

Pa (1.5 x 10

Pa (4 x 10

-1

3h-1

1.1 0.2 1.7 0.3

3.5 1.7 3.5 1.4

-2

-1

)(1.5 x 105)(1.5 x 105)(1.5 x 105)

)(7 x 10

-4

1 x 10

-3

5 x 10

)(3 x 10

50 to 70°C

-2

5 x 10

-1

4 x 10

)(5 x 10-1)

)(5 x 10

1 x 10

5 x 10

-4

-2

)

-3

-1

)

-3

)

Technical data

A344-02-880 Issue J

174

665

500

395

936

120

191

240

AA/5002/A

Technical data

Figure 2 - Dimensions E1M40 and E2M40 (mm)

Edwards and the Edwards logo are trademarks of Edwards Limited.

Figure 3 - Dimensions E1M80 and E2M80 (mm)

196

550

220

795

133

108

266

428

AA/5003/A

A344-02-880 Issue J

Technical data

A344-02-880 Issue J

Technical data

2.3 Mechanical data

Dimensions See Figure 2 (E1M40 and E2M40 pumps) and Figure 3 (E1M80 and

E2M80 pumps)

Degree of protection (IEC 34-5:1981) IP55

Pump inlet-port ISO40 or NW40

Pump outlet-port 25 mm flange, suitable for NW25 fittings

E1M40 E2M40 E1M80 E2M80

Maximum mass (kg) 70.5 72 95 105

Noise level at 1 metre (dB(A)) 65 65 70 70

2.4 Electrical data: single-phase motor

When you start a cold pump, the motor draws the start-up current shown in Table 1 for less than one second. To prevent unnecessary fuse failure during start-up use a slow-blow fuse. Within five minutes, as the oil in the pump warms up, the start-up current reduces to the full-load current specified in Table 1.

Tab le 1 - E le ctr ic al d ata ( si ng le- ph as e mo to r)

Pump

E1M40 E2M40

Nominal

supply

(V)

240 50 1.1 6.8 40 25 4

Frequency

(Hz)

Power

(kW)

Full- load

current

(A)

Start-up

current

(A)

Recom-

mended

fuse rating

(A)

Electrical

Supply

Connection

Figure

2.5 Electrical data: three-phase motors

Refer to the data in Table 2. You can configure the dual voltage motors to operate with either the high range or low range electrical supply: refer to the diagram specified in Table 2. Dual voltage motors are supplied preset to the highest of the selectable voltages.

When you start a cold pump, the motor draws the start-up current listed in Table 2 for less than one second. Within five minutes, as the oil in the pump warms up, the current drawn slowly reduces to the full-load current specified in

Table 2.

When you restart a hot pump, the motor draws the start-up current specified in Table 2 for up to 0.5 seconds. The current drawn then immediately falls to the full-load current value.

Edwards and the Edwards logo are trademarks of Edwards Limited.

Tab le 2 - E le ct ri cal d at a (t hr ee- ph as e mo to rs )

A344-02-880 Issue J

Technical data

Nominal

Pump

E1M40

E2M40

E1M80

E2M80

E1M40

E2M40

E1M80

E2M80

*You may need to use a different fuse rating. Use the information supplied with your circuit breaker or starter

to select the correct fuse rating.

supply

(V)

220-240 50 1.1 4.5 25 15 5

380-415 50 1.1 2.6 14 10 6

220-240 50 2.2 8.5 51 30 5

380-415 50 2.2 4.9 29 20 6

208 50 1.5 6.8 41 25 5

208-230 60 1.5 6.5 39 25 5

460 60 1.5 3.1 18.6 15 6

208 50 3.0 12.4 71 40 5

208-230 60 3.0 11.8 71 40 5

460 60 3.0 5.6 34 20 6

Frequency

(Hz)

Power

(kW)

Full load

current

(A)

Start-up

current

(A)

Recom-

mended fuse

rating

(A)*

Electrical

supply

connection,

Figure

2.6 Lubrication data

Note: An Edwards Health and Safety Data Sheet for the following oil is available on request.

Recommended oil* Ultragrade 70

E1M40 E2M40 E1M80 E2M80

Oil capacity (litres)

Maximum 4.6 4.07 7.0 6.3

Minimum 2.2 2.2 4.0 4.0

*To operate your pump when the ambient temperature is outside the limits specified in Section 2.1, or to

optimise your pump performance when you pump condensable vapours, you may need to use a different oil.

A344-02-880 Issue J

This page has been intentionally left blank.

Edwards and the Edwards logo are trademarks of Edwards Limited.

A344-02-880 Issue J

WARNING

3Installation

3.1 Safety

You must ensure that the pump is suitable for your application. If you have any doubt about the suitability of the pump for your application, refer to the Edwards guidelines on vacuum pump and vacuum system safety. (See Associated Publications at the end of the contents list).

Obey the safety instructions given below and take note of appropriate precautions. If you do not, you may cause injury to people and damage to equipment.

Obey the safety instructions listed below when you install the pump, especially when you connect the pump into an existing system. Details of specific safety precautions are given at the appropriate point in the instructions.

 The installation of your pump must be performed by a suitably trained and supervised technician.

 Wear the appropriate safety-clothing when you come into contact with contaminated components.

 Vent and pu rge your vac uum syst em before you start installation work.

Installation

 Ensure that the installation technician is familiar with the safety procedures which relate to the pump-oil

and the products handled by the pumping system. Take suitable precautions to avoid the inhalation of oil mist and excessive skin contact with pump-oil, as prolonged exposure can be harmful.

 Disconnect the other components in the pumping system from the electrical supply so that they cannot be

operated accidentally.

3.2 System design considerations

Consider the following points when you design your pumping system:

 Use a suitable valve to isolate the pump from your vacuum system if you need to allow the pump to warm up

before you pump condensable vapours or if you need to maintain vacuum when the pump is switched off.

 Avoid hig h level s o f heat inp ut to the pump from the process gases, otherwise the pump may overheat and

seize.

 If you use the pump in a high ambient temperature and have a high gas throughput, the temperature of the

pump-body may exceed 70°C. You must fit suitable guards to prevent contact with hot surfaces.

 Make sure that the exhaust pipeline cannot become blocked. If you have an exhaust-isolation valve, make

sure that you cannot operate the pump with the valve closed.

 Provide for a purge of inert gas when you shut down the pumping system, to dilute dangerous gases to safe

concentrations. A suitable solenoid operated gas-ballast control valve for introduction of purge-gas into the pump is available as an accessory (see Section 7).

A344-02-880 Issue J

Installation

3.3 Unpack and inspect

Use suitable lifting equipment to move the pump. The mass of the pump is between 70.5 kg and 105 kg.

 Remove all packing materials, remove the pump from its packing-box, remove the protective covers from the

inlet and outlet-ports and inspect the pump.

 If the pump is damaged, notify your supplier and the carrier in writing within three days; state the Item

Number of the pump together with your order number and your supplier's invoice number.

 Retain all the packing materials for inspection.

 Do not use the pump if it is damaged.

Check that your package contains the following items:

Qty. Description Check ()

1E1M/E2M40 or 80 Rotary Vacuum Pump

Inlet fitting packs, containing:

2ISO40 Co-seal halves

1NW40 Co-seal half (aluminium)

1ISO40/NW40 seal (nitrile)

1'C clamp

2 M8 x 25 hexagon head bolts

2Washers

Outlet fitting pack, containing:

1'C clamp

1Tube adaptor

1Centering ring NW25

1'O' ring

2Fixing screws, M8 x 20mm

2Fixing washers, M8 shakeproof

WARNING

Tab le 3 - C he ck li st



If the pump is not to be used immediately, replace the protective covers. Store the pump in suitable conditions, as described in Section 6.1.

Edwards and the Edwards logo are trademarks of Edwards Limited.

A344-02-880 Issue J

WARNING

3.4 Locate the pump

Use suitable lifting equipment to move the pump. The mass of the pump is between 70.5 kg and 105 kg.

Attach your mechanical lifting equipment to the lifting eyes on the pump.

Provide a firm, level platform for the pump. Locate the pump so that the oil-level sight-glass is visible and the oil filler-plug, oil drain-tap, disposable oil-filter and gas-ballast control are accessible.

If your pump will be located inside an enclosure, make sure that there is adequate ventilation at both ends of the pump, so that the ambient temperature around the pump does not exceed 40°C. There must be a minimum space of 25 mm between the pump and the enclosure walls.

3.5 Fill the pump with oil

3.5.1 Recommended pump oils

Installation

If you use a hyrdocarbon oil in this pump, you must not use the pump to process oxygen in concentrations greater than 25% in volume. If you do, there is a risk of fire or explosion in the oil-box of the pump.

When the ambient temperature is 12°C or higher, we recommend that you use Edwards Ultragrade 70 oil. This tested and proven oil will give you the best performance, maintenance intervals and pump life. Otherwise, use another oil with the specification VG ISO 68.

If you pump oxygen or other dangerous gases and vapours, you must use a chemically inert and stable oil (such as perfluoropolyether). For information on pumping dangerous gases and vapours, refer to the Edwards guidelines on vacuum pump and vacuum system safety (see Associated Publications at the end of the contents list).

A344-02-880 Issue J

Edwards and the Edwards logo are trademarks of Edwards Limited.

Installation

3.5.2 Filling procedure

Fill the pump with oil as described below. Refer to Figure 1 for the item numbers in brackets.

1. Remove the oil filler-plug (6)

2. Pour oil into the pump until the oil-level just reaches the MAX mark on the bezel at the top of the sight-glass (7). If the oil-level goes above the MAX mark, open the oil drain-tap (8) and drain the excess oil from the pump. When the oil-level falls to the MAX mark close the oil drain-tap (8).

3. After a few minutes, recheck the oil-level. If the oil-level is now below the MAX mark, pour more oil into the pump.

4. Refit the oil filler-plug (6). Tighten the plug firmly by hand. Do not over-tighten.

3.6 Electrical installation: single-phase motor

Note: The pump will restart automatically when the electrical supply is restored after an interruption. If you do

not want the pump to restart automatically, use electrical control equipment which must be reset manually.

1. Remove the motor terminal-box cover (Figure 1, item 10) and remove the 20 mm diameter plugs from the cable-entry hole that you will use for the electrical supply cable. Choose the most suitable hole for your application.

2. Fit a suitable cable-gland and nut to the entry hole. After the supply cable is fitted, the cable-gland must be a protective seal to the standard of IP44 in IEC 529 or better.

3. Pass the motor electrical supply cable through the cable-gland.

4. Connect the cables to the terminals as shown in Figure 4.

Figure 4 - Electrical supply connection, single-phase motor, 240 V 50 Hz

WARNING

Ensure that the electrical installation of your pump-motor conforms with your local and national safety requirements. It must be connected to a suitably fused and protected electrical supply and a suitable earth point.

L N

AA/5004/A

+ 44 hidden pages

Edwards E1M40, E2M40, E1M80, E2M80, E2M40S Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1Introduction

1.1 Scope and definitions

1.2 Description

1.3 Gas-ballast

2Technical data

2.1 Operating and storage conditions

2.2 Performance

2.3 Mechanical data

2.4 Electrical data: single-phase motor

2.5 Electrical data: three-phase motors

2.6 Lubrication data

3Installation

3.1 Safety

3.2 System design considerations

3.3 Unpack and inspect

3.4 Locate the pump

3.5 Fill the pump with oil

3.5.1 Recommended pump oils

3.5.2 Filling procedure

3.6 Electrical installation: single-phase motor