Edwards E2M0.7, E2M1, E2M1.5 Instruction Manual

A371-32-880

Issue C Original

Instruction Manual

E2M0.7, E2M1 and E2M1.5 Rotary Vacuum Pumps

Description Item Number

E2M0.7 (0.7 m

3 h-1

) 200-230 V, 50/60 Hz A371-41-919

E2M0.7 (0.7 m

3 h-1

) 100-120 V, 50/60 Hz A371-41-902

E2M1.5 (1.5 m

3 h-1

) 200-230 V, 50/60 Hz A371-32-919

E2M1.5 (1.5 m

3 h-1

) 200-230 V, 50/60 Hz (Interstage) A371-04-919

E2M1.5 (1.5 m

3 h-1

) 100-120 V, 50/60 Hz A371-32-902

E2M1.5 (1.5 m

3 h-1

) 100-120 V, 50/60 Hz (Interstage) A371-04-902

E2M1 (1.0 ft3 min-1) 200-230 V, 50/60 Hz A372-33-919

E2M1 (1.0 ft3 min-1) 100-120 V, 50/60 Hz A372-33-902

Contents

A371-32-880 Issue C

Contents

Section Page

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

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

1.2 ATEX directive implications ............................................................................................ 2

1.3 Description ................................................................................................................ 4

1.4 Gas-ballast ................................................................................................................ 4

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

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

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

2.3 Mechanical data .......................................................................................................... 6

2.4 Electrical data ............................................................................................................ 6

2.5 Lubrication data ......................................................................................................... 7

3 Installation ......................................................................................... 9

3.1 Safety ......................................................................................................................9

3.2 System design ............................................................................................................ 9

3.3 Unpack and inspect ..................................................................................................... 10

3.4 Locate the pump ........................................................................................................10

3.5 Fill the pump with oil ..................................................................................................10

3.6 Electrical installation ..................................................................................................10

3.6.1 Connect the pump to your electrical supply ....................................................................... 11

3.6.2 Check the direction of rotation ...................................................................................... 11

3.7 Inlet-port connection .................................................................................................. 11

3.7.1 General requirements ..................................................................................................11

3.7.2 Side inlet-port connection .............................................................................................12

3.8 Pump outlet connection ...............................................................................................12

3.9 Leak-test the system ...................................................................................................13

4 Operation ........................................................................................ 15

4.1 ATEX directive implications ...........................................................................................15

4.1.1 Introduction .............................................................................................................15

4.1.2 Flammable/pyrophoric materials ....................................................................................15

4.1.3 Gas purges ...............................................................................................................15

4.2 Gas-ballast control .....................................................................................................16

4.3 Start-up procedure .....................................................................................................16

4.4 To achieve ultimate vacuum .......................................................................................... 17

4.5 To pump condensable vapours ........................................................................................ 17

4.6 To decontaminate the oil ..............................................................................................17

4.7 Unattended operation ..................................................................................................18

4.8 Shut-down ................................................................................................................18

5 Maintenance ..................................................................................... 19

5.1 Safety information ...................................................................................................... 19

5.2 Maintenance plan .......................................................................................................19

5.3 Check the oil-level ..................................................................................................... 20

5.4 Replace the oil ..........................................................................................................20

5.5 Inspect and clean the inlet-filter .....................................................................................21

5.6 Clean or replace the gas-ballast o-ring ..............................................................................21

5.7 Clean the motor fan-cover and enclosure ..........................................................................22

5.8 Clean and overhaul the pump .........................................................................................22

dcs/ 8030/ 06.08

A371-32-880 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Contents

5.9 Fit new blades ........................................................................................................... 22

5.10 Test the motor condition .............................................................................................. 22

5.11 Fault finding .............................................................................................................23

6 Storage and disposal ........................................................................... 25

6.1 Storage ...................................................................................................................25

6.2 Disposal ...................................................................................................................25

7 Service, spares and accessories .............................................................. 27

7.1 Introduction .............................................................................................................27

7.2 Service ....................................................................................................................27

7.3 Spares .....................................................................................................................27

7.4 Accessories ...............................................................................................................27

7.4.1 Inlet catchpot * ......................................................................................................... 27

7.4.2 Inlet dust filter * ........................................................................................................28

7.4.3 Inlet desiccant trap * ...................................................................................................28

7.4.4 Inlet chemical trap * ...................................................................................................28

7.4.5 Solenoid operated gas-ballast control valve ........................................................................ 28

7.4.6 Foreline trap * ...........................................................................................................28

7.4.7 Solenoid operated pipeline valve * ................................................................................... 28

7.4.8 Outlet mist filter ........................................................................................................30

7.4.9 Oil drain extension .....................................................................................................30

7.4.10 Vibration isolators ......................................................................................................30

7.4.11 Pump inlet or outlet NW25 adaptor ..................................................................................30

Index .............................................................................................. 31

Illustrations

Figure Page

1 The E2M0.7, E2M1 and E2M1.5 pump ................................................................................. 3

2 Dimensions (mm) ........................................................................................................ 7

3 Inlet-filter removal and replacement ............................................................................... 21

4 Gas-ballast o-ring removal and replacement .......................................................................22

5 Accessories ...............................................................................................................29

Contents

A371-32-880 Issue C

Tables

Table Page

1 Electrical data ............................................................................................................ 6

2 Checklist of items .......................................................................................................10

3 Wire colour codes ....................................................................................................... 11

4 Maintenance plan .......................................................................................................20

5 Fault finding .............................................................................................................23

Associated publications

Publication title Publication number

Vacuum Pump and Vacuum System Safety P300-20-000

This page has been intentionally left blank.

A371-32-880 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

A371-32-880 Issue C

1Introduction

1.1 Scope and definitions

This manual provides installation, operation and maintenance instructions for the Edwards E2M0.7, E2M1 and E2M1.5 rotary vacuum pumps. You must use the pump as specified in this manual. Read this manual before you install and operate the 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.

CAUTION

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

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

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

Warning – refer to accompanying documentation.

Warning – risk of electric shock.

Warning – hot surfaces.

A371-32-880 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

1.2 ATEX directive implications

This equipment is designed to meet the requirements of Group II Category 3 equipment in accordance with Directive 94/9/EC of the European Parliament and the Council of 23rd March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres. (The ATEX Directive)

The ATEX Category 3 applies in respect of potential ignition sources internal to the equipment. An ATEX Category has not been assigned in respect of potential ignition sources on the outside of the equipment as the equipment has not been designed for use where there is an external potentially explosive atmosphere.

There is no potential source of ignition within the pump during normal operation but there may be potential sources of ignition under conditions of predictable and rare malfunction as defined in the Directive. Accordingly, although the pump is designed to pump flammable materials and mixtures, operating procedures should ensure that under all normal and reasonably predictable conditions, these materials and mixtures are not within explosive limits. Category 3 is considered appropriate for the avoidance of ignition in the case of a rare malfunction which allows flammable materials or mixtures to pass through the pump while within their explosive limits.

When flammable or pyrophoric materials are present within the equipment you must:

z Not allow air to enter the equipment.

z Ensure that the system is leak tight.

For further information, please contact Edwards: refer to the Addresses page at the end of this manual for details of your nearest Edwards company.

Introduction

A371-32-880 Issue C

Figure 1 – The E2M0.7, E2M1 and E2M1.5 pump

1. Motor terminal box

2. Handle (can be removed: see Section 3.4)

3. Gas-ballast control

4. Oil filler-plug

5. Outlet nozzle

6. Pump/motor shaft rotation direction arrow

7. Oil sight-glass and bezel

8. Pump identification label

9. Oil drain-plug

10. Baseplate

11. Removable side panel

12. NW10 inlet-port (adaptor flange)

A371-32-880 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Introduction

1.3 Description

The Edwards E2M0.7, E2M1 and E2M1.5 pump is shown in Figure 1. Refer to Figure 1 for item numbers in brackets in the following descriptions.

The E2M0.7 and E2M1.5 pumps are two-stage, direct drive, sliding vane pumps. The pump is oil-sealed and designed for reliable, long-term operation. The pump is a free-standing unit. The drive is provided through an Oldham coupling by a single-phase motor.

The motor is totally enclosed and is cooled by the motor-cooling fan which directs air along the motor fins. The motors are fitted with a thermal overload device. When the motor is too hot, the thermal overload device switches off the pump. The thermal overload device has an automatic reset; when the motor cools down, the device resets and the motor will restart.

An oil pressure system lubricates the pump shaft bearing surfaces and rotor sealing faces. The pump has an oil distribution valve which prevents discharge of oil to the pump interior (suckback) after the pump stops. The pumping chambers are air-tight, so this arrangement prevents oil suckback unless the gas-ballast valve is open. For protection in this case, refer to Section 1.4.

You can inspect the level and condition of oil in the oil box reservoir through a sight-glass (7). An oil filler-plug (4) is fitted to the top of the oil box. An oil drain-plug (9) is fitted at the bottom of the oil box.

The pump has a carrying handle (2), inlet-port (12), outlet nozzle (5) and gas-ballast control (3). The pump is mounted on a steel baseplate (10) on rubber pads. Details of suitable vibration isolators and other recommended accessories are given in Section 7.

1.4 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.

Air (or another gas) can be introduced into the low vacuum stage through the gas-ballast control. The gas-ballast control is a multi-turn valve which you can adjust, as required, between closed and fully open.

Technical data

A371-32-880 Issue C

2Technical data

Note: To comply with CSA standards, the pump must be installed and used indoors, and within the operating

conditions specified below.

2.1 Operating and storage conditions

2.2 Performance

Note: Where total pressures are shown below, the measurements were taken using an untrapped total pressure

capacitance diaphragm gauge on a header, as specified by Pneurop 6602.

Ambient temperature range (operation) 12 to 40 °C (53.6 to 104 °F)

Ambient temperature range (storage) -30 to 70 °C (-22 to 158 °F)

Normal surface temperature of the pump-body

At ultimate vacuum, with ambient temperature of 20 °C (68°F).

50 to 70 °C (122 to 158 °F)

Maximum humidity (operation) 90% RH

Maximum altitude (operation) 2000 m (6561 ft)

Pollution degree 2

Installation category II

Maximum displacement E2M0.7 E2M1 E2M1.5

50 Hz electrical supply 0.9 m

3 h-1

1.0 ft3 min

-1

1.8 m3 h

-1

60 Hz electrical supply 1.1 m3 h

-1

1.3 ft3 min

-1

2.2 m3 h

-1

Maximum pumping speed – Pneurop

50 Hz electrical supply 0.75 m3 h

-1

0.94 ft3 h

-1

1.6 m3 h

-1

60 Hz electrical supply 0.95 m3 h

-1

1.2 ft3 h

-1

2.0 m3 h

-1

Motor rotational speed

50 Hz electrical supply 1400 r min

-1

2800 r min

-1

2800 r min

-1

60 Hz electrical supply 1700 r min

-1

3400 r min

-1

3400 r min

-1

Ultimate vacuum

without gas-ballast (partial pressure) 7 x 10-4 mbar

(7 x 10

-2

Pa)

3.8 x 10

-4

torr

(5 x 10

-2

Pa)

5 x 10

-4

mbar

(5 x 10

-2

Pa)

without gas-ballast (total pressure) 3 x 10-3 mbar

(3 x 10-1 Pa)

1.1 x 10-3 torr (1.5 x 10-1 Pa)

1.5 x 10-3 mbar (1.5 x 10-1 Pa)

with full gas-ballast (partial pressure) 2 x 10

-1

mbar

(2 x 10-1 Pa)

1.9 x 10-2 torr (2.5 Pa)

2.5 x 10-2 mbar (2.5 Pa)

Maximum water vapour inlet pressure 15 mbar 11.3 torr 15 mbar

Maximum water vapour pumping rate 8 g h

-1

16 g h

-1

16 g h

-1

(1.5 x 105 Pa)

Maximum permitted outlet pressure (at full pump throughout)

0.5 bar gauge

1.5 bar absolute (1.5 x 10

Pa)

0.5 bar gauge

1.5 bar absolute (1.5 x 105 Pa)

0.5 bar gauge

1.5 bar absolute (1.5 x 105 Pa)

A371-32-880 Issue C

Edwards and the Edwards logo are trademarks of Edwards Limited.

Technical data

2.3 Mechanical data

2.4 Electrical data

The motor start-up current is drawn for less than one second, so you must use slow-blow fuses to prevent unnecessary fuse failure when the pump starts. If you use the pump at temperatures lower than 12 °C (53.6 °F), the start-up current will be drawn for longer; this may cause the motor thermal overload device to open.

Approximate pump mass 10 kg (22 lbs)

Dimensions See Figure 2

Degree of protection (IEC34-5:1981) IP44

Pump inlet port NW10 (the flange can be removed from the

/8 inch BSP tapped hole)

Pump outlet port 11 mm external diameter nozzle (the nozzle can be removed from

the 3/8 inch BSP tapped hole)

Noise level at 1 metre 54 dB(A)

E2M0.7 pump

Motor output rating – continuous 0.09 kW

Motor electrical supply Single phase

E2M1 and E2M1.5 pumps

Motor output rating – continuous 0.16 kW

Motor electrical supply Single phase

Table 1 – Electrical data

Pump

Nominal supply

(V)

Frequency

(Hz)

Full load current

(A)

Start-up current

(A)

Maximum fuse

rating (A)

Fuses should be EN60269 Section 2.2 or to BS 1362.

E2M0.7 100-115 50 1.8 5.7 10

100-120 60 1.9 5.3 10

200-230 50 0.85 2.8 6

200-240 60 1.0 2.3 6

E2M1 and E2M1.5 100-115 50 3.1 12.0 10

100-120 60 3.0 11.2 10

200-230 50 1.3 5.5 6

200-230 60 1.4 5.2 6

+ 26 hidden pages

Edwards E2M0.7, E2M1, E2M1.5 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual