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2

Read and follow all the instructions in this manual.

Inform yourself regarding:
– Hazards which can be caused by the pump;
– Hazards which can arise in your system;
– Hazards which can be caused by the medium being

pumped.

Avoid exposing any part of your body to vacuum.

Observe all safety and accident prevention regulations.

Check regularly that all safety requirements are being
complied with.

Do not use the pump for the purpose of generating 
pressure.

Do not carry out any unauthorised conversions or
modifications on the pump.

When returning the pump to us please note the shipping
instructions in the section on 7. service.

1.1. For Your Orientation

Operating instruction in the text:

➡ 

Here, you have to do something.

Symbols used

The following symbols are used throughout in the
illustrations:

Vacuum flange

Exhaust flange

Gas ballast valve

Power connection

V

Danger of damage to the pump or system.

Modifications reserved

Danger of burns from touching hot parts.

1. Safety Precautions 

Danger of personal injury.

1.

Safety Precautions .................................. 2

1.1. For Your Orientation........................................................... 2

2.

Understanding The Pump ....................... 3

2.1. Main Features..................................................................... 3

2.2. Design .................................................................................. 3

3.

Installation ............................................... 3

3.1. Preparations For Installation............................................ 3

3.2. Pump Set-Up And Location .............................................. 3

3.3. Connecting The Vacuum Side.......................................... 4

3.4. Connecting The Exhaust Side .......................................... 4

3.5. Connecting To The Mains Power Supply....................... 5

4.

Operations................................................ 6

4.1. Filling Up And Checking The Operating Fluid ................ 6

4.2. Switching The Pump ON And OFF................................... 6

4.3. Pumping Dry Gases And Vapours ................................... 6

4.4. Gas Ballast Valve (Standard Version) ............................ 7

4.5. Gas Ballast Valve (For Corrosive Gas Processes)........ 7

4.6. Silencer................................................................................ 7

5.

What To Do In Case Of Breakdowns? ... 8

6.

Maintenance............................................ 8

6.1. Replacing The Operating Fluid......................................... 8

6.2. Shutting Down For Longer Periods ................................. 9

7.

Service...................................................... 9

8.

Technical Data....................................... 10

8.1. Dimensions........................................................................ 11

9.

Accessories ........................................... 11

10. Spare Parts............................................. 12

Declaration Of Contamination .................... 13

Conformity Declaration ................ (last page)

INDEX 

Page

Page

Position numbers

Identical pump and accessory parts have the same position
numbers in all illustrations.

Pictogram definitions

Summary of Contents for DUO 2.5 A

Page 1: ...Operating Instructions Rotary Vane Vacuum Pumps UNO 005 A UNO DUO 2 5 A UNO DUO 2 5 AC PK 800 152 BGB F 9911...

Page 2: ...em Modifications reserved Danger of burns from touching hot parts 1 Safety Precautions Danger of personal injury 1 Safety Precautions 2 1 1 For Your Orientation 2 2 Understanding The Pump 3 2 1 Main F...

Page 3: ...um connection and the pumping system The valve closes off the vacuum equipment without delay when the pump is at a standstill and vents the pump The Rotary Vane Vacuum Pumps are in two versions availa...

Page 4: ...uctance value of the accessory there is a reduction in volume flow rate For the intake lines metal or PVC hoses with small flanges are available for laboratory work 3 4 Connecting The Exhaust Side Pre...

Page 5: ...values The single phase drive motors of the UNO 005 A 2 5 A and the DUO 2 5 A AC are fitted with a built in thermal protection switch A cable with connecting plug is fitted to the motor for mains con...

Page 6: ...id is possible when the pump is in final vacuum operations If there is a noticeable loss of pump fluid the casing and the radial shaft seals should be checked for leaks see Service Instructions 4 2 Sw...

Page 7: ...cer 40 is a nozzle inside the pump housing and cannot be altered when dirty it should either be cleaned or replaced see Service Instructions 7 1 7 2 7 4 Gas ballast valve 7 for Corrosive Gas Processes...

Page 8: ...P3 can be read off from the colour scale in accordance with DIN 51578 on the supplementary sheet PK 800 219 BN B on request The colour scale enables precise colour determination Fill a specimen in a...

Page 9: ...erials in accordance with the Code of Federal Regulations CFR 49 Part 173 240 Definition and Preparation We will carry out the decontamination and invoice this work to you if you have not attached thi...

Page 10: ...mbar 5 10 2 5 10 2 5 0 10 3 Total with gas ballast mbar 1 1 6 0 10 3 Max pressure in continuous operation bar 1 5 1 5 1 5 Water vapour compatibility mbar 20 15 15 Water vapour capacity at 50 60 Hz g...

Page 11: ...s catalogue contains details of a comprehensive accessory programme which can both extend the range of application of the pump and provide protection against wear and tear under extreme operating cond...

Page 12: ...full part number When ordering spare parts please state additionally the unit type and unit number see rating plate Please use this list as an order form by taking a copy Spare parts UNO 005 A Standar...

Page 13: ...he repair and or service of vacuum components will only be carried out if a correctly completed declaration has been submitted Non completion will result in delay The manufacturer could refuse to acce...

Page 14: ...tate in basso le direttive aplicate le norme standardizzate nonch le norme e le specifiche nazionali utilizatte E E E ES S S S Declaraci n de conformidad al tenor de las siguientes Directivas de la UE...

Page 15: ...G G GR R R R Produkt Product Produit Prodotto Producto Produkt Produkt Produto UNO 005 A UNO DUO 2 5 A UNO DUO 2 5 AC Angewendete Richtlinien harmonisierte Normen und angewendete nationale Normen in...

Page 16: ...2 259 6243 U S A Pfeiffer Vacuum Inc 24 Trafalgar Square Nashua NH 03063 1988 USA telephone 1 603 578 6500 telefax 1 603 578 6550 Venezuela Secotec S A Apartado 3452 Caracas 1010 A telephone 58 2 573...

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