WELCH 2154 Diaphragm Pump Instruction Manual

WELCH 2154 Diaphragm Pump

We are constantly working on the further development of all our product models.
Reprinting or reproduction of this manual, including extracts, is not allowed without the prior written permission of Co.
Gardner Denver Thomas GmbH.
All rights under the copyright laws are expressly reserved by Co. Gardner Denver Thomas GmbH.

We reserve the right to make changes and amendments.

Gardner Denver Thomas GmbH Am Vogelherd 20
98693 Ilmenau
Germany
T +49 3677 604 0
F +49 3677 604 131
welch.emea@gardnerdenver.com
www.gardnerdenver.com/de-de/welch
Customer Support +49 3677 604 0

For USA, Canada and other Americas
Gardner Denver Thomas, Inc.
1601 Feehanville Drive
Suite 550
Mt. Prospect, IL 60056
USA
T +1 847 676-8800
F +1 847 677-8606
welch.na@gardnerdenver.com
www.welchvacuum.com

Important Information

General Information

The Diaphragm Pumps conform to the following directives:

The CE sign is located on the rating plate. Observe the binding national and local regulations when fitting the pump into installations!
Our products are sold worldwide and can therefore be equipped with the typical national plugs and for the various voltages. You will find more information about the available pump designs on our web page in the internet.

Target Groups
This Operating Manual is intended for the personnel planning, operating and maintaining Di-phragma Pumps.

This group of people includes:

• Designers and fitters of vacuum apparatus,
• Employees working on commercial laboratory and industrial vacuum technology applications and
• Service personnel for diaphragm pumps

The personnel operating and maintaining the diaphragm pumps must have the technical competence required to perform the work that has to be 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 diaphragm pumps.
The Operating Manual must be kept at the place of use and be available to the personnel when required.

Intended Use

• The layout of the diaphragm pump must be appropriate for the conditions of use. The user bears the sole responsibility for this.
• The diaphragm pump may only be operated under the conditions stated
  • in the “Technical Data” section,
  • on the type plate, and
  • in the technical specification for the order concerned.
• Diaphragm pumps are approved for extracting, pumping and compressing gases and vapours. If these gases and vapours are toxic or explosive, then the user must observe the currently valid safety regulations for this application. Special types of diaphragm pumps are available for aggressive and explosive gas mixtures.

Use for an Unauthorized Purpose

It is forbidden to use the pump for applications deviating from the technical data stated on the type plate or the conditions stated in the supply contract, or to operate it with missing or defective protective devices.

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 switch (thermal) and “Hot Surface” label on the pump body – warning notice

The diaphragm pump must not be operated without these elements.

Meaning of the Warning notes

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

CAUTION ! / WARNING !
Hazard which may lead to serious injuries or material damage.

Product Standards, Safety Regulations

The Diaphragm Pumps meet the following product standards:

DIN EN ISO 12100:2011-03| 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 1012-2:2011-12| Compressors and vacuum pumps – Safety requirements –
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| Electromagnetic compatibility (EMC) –
Part 6-2: Generic standards – Immunity for industrial environments
DIN EN 61000-6-4:2011-09| Electromagnetic compatibility (EMC) –
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 50110-1:2015-02| Operation of electrical installations
Directive 2012/19/EU| Electrical and electronics – old devices (WEEE)
Directive 2011/65/EU| Dangerous materials in electrical and electronics devices (RoHS II)
China – RoHS II| Environment protection law – China 2016-01

The following additional safety regulations apply in the FR Germany:

DGUV Regulation 1| Accident prevention regulations, principles of prevention
---|---
DGUV Regulation 3| Safety and testing of electrical equipment and equipment
DGUV Rule 100-500| Operation of work equipment
DGUV Information 213-850| Safe working in laboratories

Observe the standards and regulations applying in your country when you use the diaphragm pumps.

Basic Safety Instructions

General Information

Warning notices must be observed. Disregarding them may lead to damage to health and property.
The diaphragm pumps must be operated by personnel who can detect impending dangers and take action to prevent them from materializing.
The manufacturer or authorized workshops will only service or maintain the diaphragm pump if it is accompanied by a fully completed damage report. Precise information about the contamination (also negative information if necessary) and thorough cleaning of the diaphragm pump are legally binding parts of the contract.
Contaminated diaphragm pumps and their individual parts must be disposed of in accordance with the legal regulations.
The local regulations apply in foreign countries.

Electricity
The diaphragm pumps of operation mode S1 are supplied.
When the location of operation mode S1 devices is changed, please note that the testing must be repeated in accordance with DIN EN 0105, DIN EN 0702 and DGUV Regulation 3.
The local regulations apply in foreign countries.
Please note the following when connecting to the electrical power supply system:

• The electrical power supply system must have a protective connector according to DIN IEC 60364-4-41.
• The protective connector must not have any breaks.
• The connecting cable must not be damaged.

Mechanical Systems

Improper use can lead to injuries or material damage. Observe the following instructions:

• Only operate the diaphragm pumps with hoses of the specified dimensions.

• The maximum permissible pressure of 1 bar at the suction connection must not be exceeded.

• Hazardous substances must be separated out as far as this is technically possible before they reach the pump.

• External mechanical stresses and vibrations must not be transmitted to the pump. Only use flexible laboratory hoses for connecting diaphragm pumps.

• The overpressure generated at the pressure port must not exceed 1 bar.

• The pump must not be used to suck up fluids. Lay the exhaust pipe so that it slopes downwards, so allowing condensate to flow out of the pump.

• Collect the condensate and dispose of it in an environmentally compatible manner.
  Prevent dyes exuding.

• Maintain a space of least 20 cm between the pump and adjacent parts in order to enable the pump to cool.

CAUTION !
Solid particles in the pumping medium impair the pumping action and can lead to damage. Prevent solid particles penetrating into the pump.

Hazardous Substances

The operating company bears the responsibility for the use of the diaphragm pump. Hazardous substances in the gases to be pumped can cause personal injuries and property damage. Pay attention to the warning notices for handling hazardous substances.
The local regulations apply in foreign countries.

Combustible Gases
Examine before switching on whether that can form gas combustible gas/air mixtures which can be promoted! Consider the regulations of the guideline 1999/92/EC.

Explosive gases
The diaphragm pumps are not certified according to ATEX guidelines 2014/34/EU.

Aggressive gases
The use of diaphragm pumps of the Model 2154 is not recommended for pumping chemical vapors.

Poisonous gases
Use a separator when pumping poisonous or harmful gases. Prevent such substances from leaking out of the appliance or pump.
Treat these substances according to the applicable environmental protection regulations.
Test the strength and leak-tightness of the connecting lines and the connected apparatus.
Prevent environmental poisons, e.g. mercury, getting into the diaphragm pumps.

Fulfil the requirements, for example:

• German Hazardous Substances Regulation (GefStoffV) of 01. December 2010
• Regulations 2016/1179/EU (classification, packaging and identification of hazardous substances),
• Manufacturer’s safety data sheets on hazardous substances.

High Temperatures

The diaphragm pump may heat up as a result of the temperature of the gas being pumped and through compression heat.
Prevent the following maximum permissible temperatures from being exceeded + 40 °C for the environment and the gas to be pumped.
The motor for single phase alternating current is protected against overload by an integrated motor protection switch.

Description

Design

• The diaphragm pump consists of a pump casing and a drive motor.
• The pump casing contains the drive unit and two four pump heads.
• Each pump head contains a diaphragm and the work valves.
• Two pairs of pump heads are arranged opposite each other.
• The pump heads are driven via an eccentric shaft with a connecting rod.
• Two-stage pumps are supplied, depending upon the circuitry of the pump heads.

Principle of Operation

Motor, eccentric shaft and connecting rod set the diaphragms in stroke movement. This changes the size of the space between the diaphragms and pump head (pump chamber). Increasing the size of the pump chamber opens the inlet valve while the outlet valve is closed (intake process).
Decreasing the size of the pump chamber ejects the gas through the outlet valve.
The valves are actuated by the gas being pumped. A large proportion of fluid in the diaphragm pump minimizes the pumping efficiency.

Areas of Application

The Diaphragm Pumps are intended to:

• Pumping and compressing neutral and aggressive gases and vapours.
• Generating a vacuum down to an ultimate pressure < 8 mbar.
• Use in physical and chemical laboratories in trade and industry.
• Use for vacuum filtration, vacuum distillation and vacuum drying, and other vacuum technology applications.

Pump head circuitry

Two- stage:| Three pump heads are in parallel, the fourth in series. 8 mbar (6 Torr) 2154
---|---
Ultimate pressure:
Model:

Special designs:

• Special diaphragm pumps can be supplied after consultation with the manufacturer or for a corresponding supply contract.
• Explosion protection motors.
• Motors for different voltages.

Materials of the medium-affecting pump parts

Component| Materials
(not resistant to aggressive gases)
---|---
Seal| EPDM
Screw fitting / Connecting element| PA, PP
Valve| PEEK
Diaphragm| Elastomer + PTFE layer
Vacuum hose| PTFE
Connection head / Pump head| Aluminum

Scope of Delivery

The scope of delivery is specified in the supply contract.

Accessories

600053
Vacuum Regulator with dial gauge DBR-A| for intake allows the adjustment of the ultimate pressure| 700458
Gas ballast valve| manually operated| 400599-02

Description

Connection variants A – K
Into the connection head with PTFE-insert one can screw only parts with extension ø15 – 12 long and for thread in M12x1.
To all distributors only screw connections with G1/4 are screwed. Into the small flange DN16KF additionally e.g. a hose nozzle with connection G 1/4″ can be screwed in.

Item

no.

| Order no.| Designation| Material| Dimensions| Fig. in

Variant:

---|---|---|---|---|---
1| 829972| Threaded elbow joint| PVDF| M12 x 1; 10| G
2| 710798-04| Hose nozzle| PP| M12 x 1; DN 8| G
3| 400905| Manifold 1| PP| M12 x 1; 1x G ¼ inch| F
4| 400903| Manifold 2| PP| M12 x 1; 2x G ¼ inch; L| C, D, E
5| 710957| Adapter| PP| M12 x 1; G ¼ inch| A
6| 400933| Manifold 8| PP| M12 x 1; 2x G ¼ inch; L upward| K
7| 400917-01| Manifold 5| PP| M12 x 1; 1x G ¼ inch; DN 16 KF| I, J
8| 400911| Manifold 4| PP| M12 x 1; 2x G ¼ inch; I| H
9| 829217-3| O-ring| EPDM| ø12 x 2| all
10| 829931| Straight threaded joint with seal edge| PVDF| 10 – ¼ inch| C, D, E, H, I, K
11| 710798| Hose nozzle| PP| G ¼ inch; DN 8| E, F, J, K
12| 710116| Threaded flange| PP| G ¼ inch; DN 16 KF| H
13| 400568| Blind plug| PP| G ¼ inch| J
14| 829901| Exhaust silencer| PA| G ¼ inch| D,
15| 400941| Exhaust silencer| PP / PA| A – 10| C
16| 400596| Exhaust silencer| PA| M12 x 1 male thread| B

Technical Data

Dimensions

Device Data

(two-stage)
**Free Air Displacement @ 60 Hz| cfm| 4.4
l / min| 125
Ultimate pressure| mbar| 8
Max. inlet pressure| bar| 1
Max. outlet pressure| 1
IN – Intake connection (1)| standard| Small flange DN 16 KF
optional| Hose nozzle DN 8 for hose inside diameter 8 mm (enclosed)
EX – Exhaust connection (2)| standard| Hose nozzle DN 8 for hose inside diameter 8 mm
Ambient temperature| °C| + 10 to + 40
Max. operating gas temperature| + 40
Bearing| –| maintenance-free
Reference surface sound pressure level DIN EN ISO 2151| dB (A)| 44
Voltage| V| 230; 115
(generally with motor protection switch, switch and cable)
Frequency| Hz| 50/60
Power| W| 370
Operating mode| **

–

| S 1
Type of protection DIN EN 60529| IP 54
Class of insulation DIN EN 600034-1| F (160°C)
Weight| kg| 18.3
Dimensions (W/D/H)
(without connections)| mm| 230 / 380 / 170
Order numbers for Diaphragm pumps inclusive mains connection cables IEC with:| ****

–

|
– 230 V Schuko and UK plug| 2154C- 02
– 115 V American plug| 2154B- 01

The information presented in this material is based on technical data and test results of nominal units.
It is believed to be accurate and reliable and is offered as and aid to help in the selection of products.
It is the responsibility of the user to determine the suitability of the product for the intended use and the user assumes all risk and liability whatsoever in connection therewith. Gardner Denver Thomas GmbH does not warrant, guarantee or assume any obligation or liability in connection with this information.

Installation and Operation

Unpacking
Carefully unpack the diaphragm pump.

Check the pump for:

• Transport damage,
• Conformity with the specifications of the supply contract (type, electrical supply data),
• Completeness of the delivery.

Please inform us without delay if there are discrepancies between the delivery and the contractually agreed scope of delivery, or if damage is detected.
Please take note of the general terms of business of the manufacturing firm.
In case of a claim under warranty, the device must be returned in packaging that is suitable for protecting it during transport.

Installation and Connection

1. Set the diaphragm pump on a flat and horizontal surface.
2. Remove the protective caps on the intake and exhaust ports.
3. Prepare the connections.
4. Connect the vacuum connector to the intake port.
5. Connect the exhaust pipe to the pressure connection.
6. Connect the diaphragm pump to the electrical supply.

Operation

Observe the basic safety instructions when using the pump.
The diaphragm pump is switched on and off at the operating switch.
The operating company must install a main switch for pumps with terminal boxes.

Storage
The pumps are to be stored in a low-dust, interior room within the temperature range from + 5 to + 40 °C and at a relative air humidity < 90%.
Leave the protective elements on the suction and pressure ports. Another equally good protection may be used.

Scrap Disposal

CAUTION !
The Diaphragm pumps must be disposed of in accordance with the 2012/19/EU guideline and the specific national regulations.
Contaminated diaphragm pumps must be decontaminated according to the laws.

Maintenance and Servicing

General Requirements

• Check the pump daily for unusual running noises and heat building up on the surface of the pump.
• We recommend changing the diaphragm after 10,000 operating hours. The user may specify that the exchange be made earlier, depending upon the application process.
• Check the electrical and vacuum connections daily.

Maintenance Performed by the User

WARNING !
Only perform the work that is described here, and that which is permitted to be done by the user.
All other maintenance and service work may only be performed by the manufacturer or a dealer authorized by him.
Beware of the pump parts being possibly contaminated by hazardous substances. Wear protective clothing if there is contamination.

Scope of permissible work:

• Loosen and remove the hoses
• Open and remove the pump heads
• Inspect the pump chambers, diaphragms and valves
• Deposits in the inside of the pump must be cleaned out
• Change the diaphragms, valves and seals

WARNING !
Before opening the pump unplug it from the mains.

Tools required:
Tool kit: Order no. 402106, consists of:

• Order no. 826801 Pin type face wrench, adjustable, size 3,
• Order no. 826801-6 Allan key, size 4,
• Order no. 826801-5 Open spanner, size 17.

Disassembly

1. Disconnect the power supply and ensure that it cannot be switched on again.
2. Open the screw clamps (9) of the hoses (10) on the pump body with the size 17 open spanner.
3. Remove four machine screws (1) from each connection head with an Allan key, size 4.
4. Lift off the connection head (2) and the pump head (5). The valves (3), orings (4) and diaphragm (7) are now freely exposed.
5. Loosen the diaphragm (7) at the strain washer (6) by turning the size 3 pin type face wrench anticlockwise.
6. Clean the valves (3), the pump head (5) and the diaphragm (7) with a soft cloth and ace-tone.
7. Check that the drive is in good working order.

WARNING !
Renew defective parts, if necessary! Wear protective gloves!
Parts must be renewed at the intervals stated in this Operating Manual or as specified by the user internally!
Do not clean with compressed air!

Assembly (see Fig. 3)

1. Place the pump so that the diaphragm is lying in a horizontal position.

2. Use the size 3 pin-type face wrench to tighten the pressure disc (8), the diaphragm (7) and the strain washer (6) with the correct torque of 5 – 6 Nm.

3. Bring the connecting rod (see Fig. 4) and the diaphragm (7) into the central position.

4. Replace the pump head (5).

5. Insert the valves (3) and the orings (4).
   Ensure that they are lying completely flat. Do not insert the burred side facing the sealing surface. Align the connection head flush with the pin.

6. Tighten the four machine screws (1) symmetrically with a torque of 3 to 4 Nm.

7. Reattach the hose connections (10) with clamping ring screw fittings (9).

Test

• Connect a vacuum measuring device to the suction connector and measure the ultimate pressure.
  If the device is working properly, then the figure stated in the technical data must be at-tained within a maximum of one minute.

• The pump must not make any abnormal noises.

• Moving parts must not touch each other.

Maintenance by the Manufacturer

Repairs and maintenance going beyond the extent of the work described in chapter 6.2 or reconditioning or modification may only be performed by the manufacturer or authorized workshops.

WARNING !
The user shall be liable for the consequences of an incorrect damage report or a contaminated pump.
The statements in the damage report are legally binding.

Damage Report
You find the form of the damage report to the Download on our web page in the menu “service” and “Downloads”.
www.gardnerdenver.com/de-de/welch
If you should not have an entrance to the Internet, you can request the form also gladly with us, under phone +49 3677 604 0.

WARNING !
Incomplete or incorrectly completed damage reports may endanger the service per-sonnel!
Give full information in the damage report, in particular regarding a possible contaminating.

Troubleshooting

During the warranty period, intervention in the diaphragm pumps and accessory components may only be made by manufacturing firm.

necessary.
Vacuum pump leaking| Check the hose connections between the pump heads, replace the hoses and/or fittings if necessary.
Pump head leaking| Service workshop| Repair and/or exchange
Diaphragm defective| User or Service workshop| Exchange of the diaphragm (see chapter 6.2)
Valve defective| Exchange of the valve (see chapter 6.2)
Vacuum pump dirty| General maintenance / cleaning
Valves dirty| Cleaning condensates and foreign objects out of the valves.
Running noise| Vacuum pump dirty| User or Service workshop| General maintenance / cleaning
Cable(s)| defective and/or brittle| Qualified electrician| Exchange of the cable(s)

Spare Parts Overview

The spare parts lists contain all the spare parts and all the information necessary for ordering.
When ordering, please quote the description, quantity, serial number and order number!

CAUTION !
We are not liable for any damage caused by the installation of any parts not supplied by the manufacturer.

Service kit

The Service kit consists of:

Caution, the number of supplied construction units in the service kit corresponds to the maximum need of the series!

Spare Parts Overview

Spare parts view

Spare parts list – Diaphragm pumps – Models 2154

Item no.| Designation| Piece| 2154C- 02| 2154B- 01
---|---|---|---|---
230 V| 115 V
Order no.| Order no.
– *)| Basic pump complete        (consisting of position: 1 – 9)| 1| 410403| 410403-01
1| – Pump casing 1| 1| 410430-01| 410430-01
2| – Pump casing 2| 1| 410430-3| 410430-3
3| – O-Ring ø 47.22 x 3.53| 1| 829269| 829269
–| – Drive complete (consisting of position: 4 – 8)| 1| 400844| 400844
4| – Piston rod with ball bearing| 4| 400647-01| 400647-01
5| – Close tolerance spacer 25 x 35 x 1| 6| 824957-1| 824957-1
6| – Eccentric shaft| 1| 400742-1| 400742-1
7| – Ball bearing| 1| 824949-3| 824949-3
8| – Mass balance| 2| 400678-1| 400678-1
9| – Alternating-current motor| 1| 826390-1| 826446-1
10| Handle| 1| 828634| 828634
11| Rubber metal-pad| 2| 829141-2| 829141-2
12| Spacer distance PP, Foot| 2| 400784-01| 400784-01
13| Rubber pad| 1| 400785-1| 400785-1
14| Pump head| 4| 400643-01| 400643-01
15| Connection head| 4| 410432| 410432
16| Aluminum insert| 4| 400902-01| 400902-01
17| Pressure washer| 4| 400680| 400680
18| Tightening washer| 4| 400707| 400707
19| Diaphragm| 4| 400732| 400732
20| Valve| 6| 400656| 400656
Valve with hole| 2| 400656-4| 400656-4
21| Manifold 5| 1| 400917-01| 400917-01
22| Manifold 2| 1| 400903| 400903
23| Manifold 4| 1| 400911| 400911
24| Manifold 8| 1| 400933| 400933
25| Hose nozzle PP, DN 8 – ¼“ (2x enclosed)| 2| 710798| 710798
26| Straight threaded joint with seal edge PVDF, 10 – ¼“| 5| 829931| 829931
27| T – screw connection PP, 10-10-10| 2| 829930-02| 829930-02
28| Threaded elbow joint 10, PVDF, M12 x 1| 4| 829972| 829972
29| Threaded elbow joint PVDF, 10 – ¼“| 1| 829984| 829984
31| Vacuum hose PTFE, 10 / 8 x 1 mm| 0.7 m| 828332| 828332
30| Threaded elbow joint with attitude taps PVDF, 10 – A10| 1| 829913-1| 829913-1
32| O-Ring EPDM ø 25 x 2| 8| 829250-1| 829250-1
33| O-Ring EPDM ø 12 x 2| 7| 829217-3| 829217-3
34| Check valve| 1| 829909| 829909
–| Exhaust silencer ¼“| 1| 829901| 829901

–

| Mains connection cable IEC with plug CEE (D)| 1| 825885| –
Mains connection cable IEC with plug NEMA5-15 (US)| 1| –| 825903

*The “basic pump” module (items 1 – 9) can only be supplied complete under order numbers 410403 or 410403-01.

EC Declaration of Conformity

Gardner Denver Thomas GmbH Am Vogelherd 20
98693 Ilmenau
Germany

T +49 3677 604 0
F +49 3677 604 131
welch.emea@gardnerdenver.com
www.gardnerdenver.com/de-de/welch

We (Gardner Denver Thomas GmbH) herewith declare under our sole responsibility that the product described below is in accordance with the following Directives standards and other technical specifications regarding design and version when delivered from our factory.
This declaration becomes invalid whenever the product has been modified without our consent.

Description of product (pumps / pump systems)
Diaphragm pumps / Models: 2154
2154B-01, 2154C-02

The product is in conformity with the following Directives and standards:

The product is in conformity with the following Directives and standards:

X| 2006/42/EG| EC machinery directive
X| 2014/34/EU| ATEX Guideline for use in potentially explosive atmospheres, Appendix III
X| 2014/30/EU| EC Electromagnetic Compatibility Directive
X| 2011/65/EU| Dangerous materials in electrical and electronics devices (RoHS II)
X| 2012/19/EU| Electrical and electronics – old devices (WEEE)
X| China – RoHS II| China 2016-01 / Environment protection law
Applied harmonized standards:

X

| DIN EN 1127-1:

2011- 10

| Explosive atmospheres – Explosion prevention and protection – part 1: Basic concepts and methodology
X| DIN EN 13463-1: 2009- 07| Non- electrical equipment for use in potentially explosive atmospheres – part 1: Basic method and requirements
X| DIN EN 13463-5: 2011- 10| Non-electrical equipment for use in potentially explosive atmospheres – part 5: Protection by constructional safety ‘c’
X| DIN EN ISO 12100: 2011-03| Safety of machinery – General principles for design – Risk assessment and risk reduction
X| DIN EN ISO 13857: 2008-06| Safety of machinery – Safety distances to prevent hazard zones being reached by upper and lower limbs
X| DIN EN 1012-2: 2011- 12| Compressors and vacuum pumps – Safety requirements – part 2: Vacuum pumps
X| DIN EN ISO 2151: 2009-01| Acoustics – Noise test code for compressors and vacuum pumps – Engineering method (grade 2)
X| DIN EN 60204-1: 2014- 10| Safety of machinery – Electrical equipment of machines – part 1: General requirements
X| EN 61000-6- 2: 2011- 06| Electromagnetic compatibility (EMC) – part 6-2: Generic standards – Immunity for industrial environments
X| EN 61000-6- 4: 2011- 09| Electromagnetic compatibility (EMC) – part 6-4: Generic standards – Emission standard for industrial environments environments
X| DIN EN 50110-1: 2014- 02| Operation of electrical installations
X| DIN EN 61010- 1/A1:2015-04| Safety requirements for electrical equipment for measurement, control and laboratory use – part 1: General requirements

Authorized representative established in the European Community and person, who is authorized to compile the technical file.

References

• Welch | Angewandte Vakuumtechnik für Labor und Industrie
• welchvacuum.com
• Welch | Angewandte Vakuumtechnik für Labor und Industrie

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