Edwards E-LAB 2 Instruction Manual

Instruction Manual

E-LAB 2 Pumps

A652–07–880

Issue D Original

Description Item Number

E-LAB 2 Pump, 110-120/220-240 V, 50/60 Hz, single phase A652-07-903

E-LAB 2 Pump, 100/200 V, 50/60 Hz, single phase A652-07-904

E-LAB 2 Pump, 110-120 V, 50/60 Hz, single phase A652-07-906

Declaration of Conformity

We, Edwards,

Innovation Drive, Burgess Hill, West Sussex, RH15 9TW, UK

declare under our sole responsibility, as manufacturer and person within the EU authorised to assemble the technical file, that the product(s)

E-LAB 2 Rotary Vacuum Pumps: A652-07-903 A652-07-904 A652-07-906

to which this declaration relates is in conformity with the following standard(s) or other normative document(s)

EN1012-2:1996+A1:2009 Compressors and Vacuum Pumps. Safety Requirements.Vacuum Pumps EN61010-1:2010 Safety Requirements for Electrical Equipment for Measurement,

Control and Laboratory Use. General Requirements EN60034-1: 2010 Rotating electrical machines. Rating and performance C22.2 No77: 1995 Motors with inherent overheating protection C22.2 No100: 2004 Motors and Generators C22.2 61010-1-04: 2004 Safety requirements for electrical equipment for measurement,

Control and laboratory use – Part 1: General requirements UL61010A: 2002 Safety requirements for electrical equipment for measurement,

Control and laboratory use – Part 1: General requirements EN50581:2012 Technical Documentation for the Assessment of Electrical and Electronic Products with respect to the Restriction of Hazardous Substances

and fulfils all the relevant provisions of

2006/42/EC Machinery Directive 2014/35/EU Low Voltage Directive 2011/65/EU Restriction of Certain Hazardous Substances (RoHS) Directive

Note: This declaration covers all product serial numbers from the date this Declaration was

signed onwards.

16.05.2016, Burgess Hill

Mr Peter Meares Senior Technical Support Manager, General Vacuum

This product has been manufactured under a quality management system certified to ISO 9001:2008



Date and Place

P200-00-680 Issue C

A652–07–880 Issue D

Section Page

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

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

1.2 Description ................................................................................................................ 2

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

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

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

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

2.3.1 General .................................................................................................................... 6

2.3.2 Noise and vibration data ................................................................................................ 7

2.4 Electrical data ............................................................................................................ 7

2.5 Lubrication data ......................................................................................................... 8

2.6 Materials of construction ............................................................................................... 8

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

Contents

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

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

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

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

3.5 Fill the pump with oil ..................................................................................................11

3.6 Fit the outlet oil mist filter ...........................................................................................11

3.7 Fit the gas ballast oil return assembly ..............................................................................11

3.8 Select the gas ballast flow rate (optional) ..........................................................................14

3.9 Fit the inlet catchpot ..................................................................................................15

3.10 Electrical installation ..................................................................................................15

3.10.1 Check and configure the motor .......................................................................................15

3.10.2 Connect the pump to the electrical supply ......................................................................... 17

3.10.3 Check the direction of rotation ...................................................................................... 18

3.11 Inlet and outlet connections ..........................................................................................18

3.12 Leak test the system ...................................................................................................18

4 Operation ........................................................................................ 19

4.1 Start-up procedure .....................................................................................................19

4.2 To achieve ultimate vacuum/pump condensable vapours ....................................................... 19

4.3 To decontaminate the oil ..............................................................................................20

4.4 Unattended operation ..................................................................................................20

4.5 Shut down ................................................................................................................20

5 Maintenance ..................................................................................... 21

5.1 Safety .....................................................................................................................21

5.2 Maintenance plan .......................................................................................................22

5.3 Check the liquid level in the inlet catchpot ........................................................................ 22

5.4 Check the pump oil level ..............................................................................................23

5.5 Replace the pump oil .................................................................................................. 23

5.6 Inspect the oil mist filter elements .................................................................................. 24

5.7 Inspect and clean the pump inlet-filter .............................................................................26

5.8 Inspect the oil return assembly .......................................................................................27

5.8.1 Check the installation of the assembly .............................................................................. 27

5.8.2 Unblock the restrictor (if necessary) ................................................................................27

5.8.3 Unblock the air intake (if necessary) ................................................................................27

mv/07/14

A652–07–880 Issue D

Contents

5.9 Clean the pump oil level sight glass .................................................................................28

5.10 Clean the motor fan cover ............................................................................................30

5.11 Clean and overhaul the pump .........................................................................................30

5.12 Test the motor condition ..............................................................................................30

5.13 Fit new blades to the pump ........................................................................................... 30

5.14 Fault finding .............................................................................................................31

5.14.1 The pump has failed to start .......................................................................................... 31

5.14.2 The pump has failed to achieve the specified performance (has failed to reach ultimate vacuum) ...... 31

5.14.3 The pump is noisy ....................................................................................................... 31

5.14.4 The pump surface temperature is above 100 °C ...................................................................32

5.14.5 The vacuum is not fully maintained after the pump is switched off ...........................................32

5.14.6 The pumping speed is poor ............................................................................................32

5.14.7 There is an external oil leak ..........................................................................................32

6 Storage and disposal ........................................................................... 33

6.1 Storage ...................................................................................................................33

6.2 Disposal ...................................................................................................................33

7 Service and spares .............................................................................. 35

7.1 Introduction .............................................................................................................35

7.2 Service ....................................................................................................................35

7.3 Spares available .........................................................................................................35

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

Edwards and the Edwards logo are trade marks of Edwards Limited.

A652–07–880 Issue D

Illustrations

Figure Page

1 The E-LAB 2 Pump ....................................................................................................... 3

2 Pumping speed curves: speed plotted against inlet pressure ..................................................... 6

3 Dimensions (mm) ........................................................................................................ 7

4 Fit the inlet trap and oil mist filter ..................................................................................12

5 Fit the gas ballast oil return assembly ..............................................................................13

6 Select the gas ballast flow rate ......................................................................................14

7 Motor voltage configuration ........................................................................................... 16

8 The outlet oil mist filter ...............................................................................................25

9 Pump inlet filter assembly ............................................................................................26

10 Sight glass assembly ....................................................................................................28

11 Part sectional view of the oil return assembly ..................................................................... 29

Tables

Contents

Table Page

1 Electrical data (pumps with Item Numbers -903 or -906) ......................................................... 8

2 Electrical data (pumps with Item Numbers -904) ................................................................... 8

3 Checklist of components ...............................................................................................10

4 Recommended time switch settings .................................................................................20

5 Maintenance plan .......................................................................................................22

Associated publications

Publication title Publication number

Vacuum pump and vacuum system safety P300–20–000

A652–07–880 Issue D

This page has been intentionally left blank.

Edwards and the Edwards logo are trade marks of Edwards Limited.

A652–07–880 Issue D

CAUTION

WARNING

1Introduction

1.1 Scope and definitions

This manual provides installation, operation and maintenance instructions for the Edwards E-LAB 2 Pump (abbreviated to E-LAB 2 in the remainder of this manual). The pump must be used as specified in this manual. Read this manual before installing and operating the pump.

Important safety information is highlighted as WARNING and CAUTION instructions; these instructions must be obeyed. The use of WARNINGS and CAUTIONS is defined below.

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

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 labels are on the pump:

Warning - refer to accompanying documentation.

Warning - risk of electric shock.

Warning - hot surface.

A652–07–880 Issue D

Introduction

1.2 Description

Refer to Figure 1. The E-LAB 2 is a complete laboratory pumping system, which has a two-stage, rotary-vane vacuum pump. An oil mist filter (6) is fitted to the outlet of the pump, to prevent the discharge of oil mist. An inlet catchpot (4) is fitted to the pump inlet to minimise the ingress of condensable vapours into the pump.

The E-LAB 2 has a gas ballast oil return assembly (16) which continuously returns oil trapped in the mist filter to the pump.

The vacuum pumping mechanism is oil sealed. The level and condition of the oil in the oil box is inspected through the sight glass (8). Diagrams on the side panels and on the oil change tag (Figure 3, item 4) give guidance on when to change the oil. Two oil filler plugs (7) and an oil drain plug (9) are provided on the oil box.

The pump mechanism is driven directly by a single-phase electric motor through a flexible motor coupling. The motor is totally enclosed and is cooled by the motor cooling fan which directs air along the motor fins. The pumps are cooled by an additional fan attached to the motor coupling.

The motor has an on/off switch (12) and 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, unless the system incorporates suitable control equipment that must be manually reset (see Section 3.10.2).

The E-LAB 2 has a gas ballast oil return assembly, which is supplied configured to automatically deliver high gas ballast flow rate into the pump; this prevents the condensation of vapours in the pumped gases and allows the use the E-LAB 2 to pump high-vapour loads. If required, the gas ballast flow rate into the pump can be reduced or switched off.

When the E-LAB 2 is switched off, an inlet valve seals the inlet and prevents the suck-back of air and oil into the vacuum system.

The E-LAB 2 has a retractable lifting handle (15) and is mounted on a base plate on rubber feet (11).

Edwards and the Edwards logo are trade marks of Edwards Limited.

Figure 1 - The E-LAB 2 Pump

1. Electrical supply connector

2. Voltage indicator

3. Inlet

4. Inlet catchpot

5. Outlet

6. Outlet oil mist filter

7. Oil filler-plugs

8. Oil level sight glass

9. Oil drain plug

10. Oil change tag

11. Rubber feet (4 off)

12. On/off switch

13. Motor fan cover

14. Correct direction of rotation

15. Lifting handle

16. Gas ballast oil return assembly

A652–07–880 Issue D

Introduction

A652–07–880 Issue D

This page has been intentionally left blank.

Edwards and the Edwards logo are trade marks of Edwards Limited.

2Technical data

2.1 Operating and storage conditions

Ambient temperature range (operation) 12 to 40 °C

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

Maximum humidity (operation) 90% RH

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

Maximum altitude (operation) 2000 m

Pollution degree 2

Installation category II

2.2 Performance

Note: The pumping speed curves for the E-LAB 2 are shown in Figure 2

Suckback protection 1 x 10

Maximum displacement

50 Hz electrical supply 3.7 m3h

60 Hz electrical supply 4.5 m3h

Maximum pumping speed, Pneurop 6602 (1979)

50 Hz electrical supply 3.3 m3h

60 Hz electrical supply 3.9 m3h

Maximum permitted inlet pressure and gas ballast inlet pressure 1 bar gauge, 2 x 105Pa

Maximum permitted outlet pressure 1 bar gauge, 2 x 10

Ultimate total pressure 1 x 10

Maximum gas ballast flow 14 l.min

Maximum water vapour pumping rate

50 Hz electrical supply 0.095 kg.h

60 Hz electrical supply 0.11 kg.h

Maximum water vapour inlet pressure 40 mbar, 4 x 103Pa

50 to 70 °C

-5

mbar.ls-1, 1 x 10-3Pa.ls

-1

mbar, 10 Pa

-1

A652–07–880 Issue D

Technical data

-1

A652–07–880 Issue D

1. 60 Hz

2. 50 Hz

Technical data

Figure 2 - Pumping speed curves: speed plotted against inlet pressure

2.3 Mechanical data

2.3.1 General

Overall dimensions See Figure 3

Degree of protection (IEC 34-5: 1981) IP44

Maximum tilt angle 10°

Pump motor rotational speed

50 Hz electrical supply 1470 r.min

60 Hz electrical supply 1760 r.min

Maximum mass of pump * 25.0 kg

* Without pump oil, inlet catchpot, outlet mist filter, and gas ballast oil return kit.

Edwards and the Edwards logo are trade marks of Edwards Limited.

-1

Figure 3 - Dimensions (mm)

1. Outlet

2. Inlet

3. Baseplate mounting holes: 4 x M8

4. Oil change tag

A652–07–880 Issue D

Technical data

2.3.2 Noise and vibration data

Sound pressure: measured at ultimate vacuum 1 metre from the end of the pump to ISO 11201, 50 Hz electrical supply

Vibration severity: measured at the inlet port to ISO 2372 (1974) Class 1C

50 dB(A)

2.4 Electrical data

Note: Edwards recommends using fuses of the maximum ratings specified in Tables 1 and 2. Do not use fuses of a

higher rating.

The dual-voltage, dual-frequency motor is designed for a single-phase electrical supply and is suitable for 50 Hz or 60 Hz operation. The motor can be manually switched between nominal supply voltages of 110-120 V and 220-240 V (refer to Section 3.10.1).

When starting a cold pump, the motor will draw a start-up current for up to several seconds, therefore use a slow-blow fuse to prevent unnecessary fuse failure during pump start-up. Within five minutes, as the oil in the pump warms up, the current drawn will slowly reduce to the full load current specified in Tables 1and 2.

+ 29 hidden pages

Edwards E-LAB 2 Instruction Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

Illustrations

Tables

Associated publications

1Introduction

1.1 Scope and definitions

1.2 Description

2Technical data

2.1 Operating and storage conditions

2.2 Performance

2.3 Mechanical data

2.3.1 General

2.3.2 Noise and vibration data

2.4 Electrical data