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Important Information 

2511 

1.5 

Safety Devices 

Measures such as the following are for the safety of the operating personnel: 

electrical connection with a protective conductor (operating mode S1) and an earthing 
plug 

Motor protection device (thermal) 
“Hot Surface" label on the pump - warning notice 

The WOB-L

®

 Piston Pumps must not be operated without these elements.

1.6 

Meaning of the Warning notes 

Take note of the warning notices. They are each in the following box: 

CAUTION ! / WARNING ! 

Hazard which may lead to serious injuries or material damage. 

1.7 

Product Standards, Safety Regulations 

WOB-L

®

 Piston Pumps meet the following product standards:

Observe the standards and regulations applying in your country when you use the WOB-L

®

Piston Pumps. 

standards:

DIN EN ISO 

 

12100

:

201

1-03

Safety of machinery - 
General principles for design - Risk assessment and risk reduction 

DIN EN ISO 13857:2008-06 

Safety of machinery - Safety distances to prevent hazard zones being reached 
by upper and lower limbs 

DIN EN 1012-1

:2011-02

DIN EN 1012-2

:2011-12

Compressors and Vacuum pumps - Safety requirements - 
Part 1: Compressors 
Part 2: Vacuum pumps 

DIN EN ISO 2151

:2009-01

Acoustics - Noise test code for compressors and vacuum pumps - Engineering 
method (grade 2) 

DIN EN 60204-1

2014-10

Safety of machinery - Electrical equipment of machines - 
Part 1: General requirements 

DIN EN 61000-6-2:2011-06

DIN EN 61000-6-4:2011-09

Electromagnetic compatibility (EMC) - 
Part 6-2: Generic standards - Immunity for industrial environments 
Part 6-4: Generic standards - Emission standard for industrial environments 

DIN EN 61010-1

/A1:2015-04

Safety requirements for electrical equipment for measurement, control and 
laboratory use - Part 1: General requirements 

DIN EN 50110-1

:2014-02

Operation of electrical installations 

Directive 2012/19/E

U

Electrical and electronics - old devices (WEEE) 

Directive 2011/65/E

U

Dangerous materials in electrical and electronics devices (RoHS

 II

)

China - RoHS

 II

Environment protection law - China 20

16-01

The following additional safety regulations apply in the FR Germany: 

BGV A3 

Electrical equipment and operating materials 

VBG 5 

Power-driven machines 

BGR 120 

Guidelines for laboratories 

BGI 798 

Hazard assessment in the laboratory 

BGG 919  (VBG 16) 

Accident prevention regulations for "compressors" 

BGR 189  (BGR 195;192;197) 

Use of protective working clothes 

Summary of Contents for Welch WOB-L 2511B-02

Page 1: ...Operation Manual EN Translation of the german original manual WOB L Piston pumps Models 2511C 02 2511B 01 2511 2017 05 16...

Page 2: ...t Prospect IL 60056 USA T 1 847 676 8800 F 1 847 677 8606 welch na gardnerdenver com www welchvacuum com We are constantly working on the further development of all our product models Reprinting or re...

Page 3: ...upply 8 3 2 Protection measure against liquids in the pump 9 3 2 1 Condensate separator Suction side 9 3 3 Areas of Application 9 3 4 Scope of Delivery 9 3 5 Accessories 9 4 Technical Data 10 5 Instal...

Page 4: ...done The user must authorize the operating personnel to do the work that has to be done The personnel must have read and understood the complete Operating Manual before using the WOB L Piston Pumps T...

Page 5: ...afety requirements Part 1 Compressors Part 2 Vacuum pumps DIN EN ISO 2151 2009 01 Acoustics Noise test code for compressors and vacuum pumps Engineering method grade 2 DIN EN 60204 12014 10 Safety of...

Page 6: ...connecting to the electrical power supply system The electrical power supply system must have a protective connector according to DIN VDE 0100 410 IEC 60364 4 41 The protective connector must not have...

Page 7: ...recommended for pumping acidic basic or organic va pors Poisonous Gases Use a condensate separator eg Woulff bottle when pumping poisonous or harmful gases Prevent such substances from leaking out of...

Page 8: ...e disconnection devices current output Motor is provided with a thermal overload protection ex works protecting the vacuum pump from damage or destruction respectively WARNING Should the user change t...

Page 9: ...hemical laboratories in trade and industry Use for vacuum filtration vacuum drying and other vacuum technology applications 3 4 Scope of Delivery The scope of delivery is specified in the supply contr...

Page 10: ...er No for WOB L Piston pump 230V 50Hz inclusive mains connection cable with plug CEE and UK 2511C 02 WOB L Piston pump 115V 60Hz inclusive mains connection cable with plug US 2511B 01 The information...

Page 11: ...the cooling of the pump is guaranteed see chapter 2 3 Note that on the installation location no moisture acts on the pump 5 2 2 Connecting 5 2 2 1 Electrical Connection Before the electrical connectio...

Page 12: ...he pump 5 3 2 Decommissioning If vacuum applications with special steam load the pump needs to run after the process with an open vacuum port about 2 minutes and rinsed with atmospheric air This measu...

Page 13: ...ilding up on the surface of the pump Check the electrical and vacuum connections daily 6 2 Maintenance by the Manufacturer Repairs and maintenance going beyond the extent of the work described in chap...

Page 14: ...rvice workshop Exchange Pump does not generate a vacuum or overpressure Connected apparatus and or connecting elements leaking User or Service workshop Identify and seal the leak replace the seals and...

Page 15: ...ssessment and risk reduction S curit des machines Principes g n raux pour l valuation des risques et la r duction des risques Seguridad de las m quinas Principios generales para el dise o Evaluaci n d...

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