Pepperl+Fuchs 7500 Series Bedienungsanleitung

7500 Purge System

User Manual

Bebco EPS® 7500 Series Type Z and

Ex pzc Purge and Pressurization System

With regard to the supply of products, the current issue of the following document is applicable:

The General Terms of Delivery for Products and Services of the Electrical Industry, published by the

Central Association of the Electrical Industry (Zentralverband Elektrotechnik und Elektroindustrie

(ZVEI) e.V.) in its most recent version as well as the supplementary clause: “Expanded reservation of

proprietorship”.

Worldwide

Pepperl+Fuchs Group

Lilienthalstr. 200

68307 Mannheim

Germany

Phone: +49 621 776 - 0

E-mail: info@de.pepperl-fuchs.com

North American Headquarters

Pepperl+Fuchs Inc.

1600 Enterprise Parkway

Twinsburg, Ohio 44087

USA

Phone: +1 330 425-3555

E-mail: [email protected].com

Asia Headquarters

Pepperl+Fuchs Pte. Ltd.

P+F Building

18 Ayer Rajah Crescent

Singapore 139942

Phone: +65 6779-9091

E-mail: [email protected]

https://www.pepperl-fuchs.com

•

Table of contents

1. Introduction.............................................................................................6

1.1. Content of this Document ............................................................................. 6

1.2. Target Group, Personnel................................................................................7

1.3. Symbols Used...............................................................................................7

1.4. Pertinent Laws, Standards, Directives, and Further Documentation.............. 9

1.5. Declaration of Conformity..............................................................................9

2. Product Description .............................................................................10

2.1. Introduction.................................................................................................10

2.2. 7500 System Overview ...............................................................................10

2.3. Control Unit................................................................................................. 10

2.3.1 Technical Data: Control Unit ...................................................................11

2.3.2 Terminal Connection Data ......................................................................14

2.3.3 Wiring Requirements and Electrical Connections...................................14

2.3.4 Dimensions: Control Units......................................................................16

2.3.5 Panel Cut-Out Dimensions ..................................................................... 16

2.3.6 Pressure Kit............................................................................................17

2.3.7 Torque Requirements: Control Unit.........................................................17

2.3.8 Dimensions: 7500-MTD-* Mount Systems .............................................18

2.3.9 External/Panel Mounting Illustration ....................................................... 22

2.4. EPV-7500 Vents .......................................................................................... 23

2.4.1 Technical Data: EPV-7500 Vents ............................................................23

2.4.2 Flow Rate Curves................................................................................... 25

2.4.3 Dimensions: EPV-7500 Vents.................................................................28

2.4.4 Torque Requirements: EPV-7500 Vents.................................................. 28

2.5. 7500-MAN-MV-01 Manual Manifold............................................................ 29

2.5.1 Technical Data: 7500-MAN-MV-01 .........................................................29

2.5.2 Dimensions: 7500-MAN-MV-01..............................................................30

2.5.3 Torque Requirements: 7500-MAN-MV-01 ..............................................30

2.6. Automatic Manifolds ................................................................................... 31

2.6.2 Components: 5500 Manifolds.................................................................32

2.6.1 Technical Data: 5500 Manifolds (Automatic) ..........................................33

2.6.3 Dimensions: 5500 Manifolds ..................................................................36

7500 SerieS Manual  Table of conTenTS

DOCT-B3R9 • 10/2023

2.6.4 Torque Requirements: 5500 Manifolds................................................... 37

2.6.5 Technical Data: 7500 Manifolds (Automatic) ..........................................38

2.6.6 Components: 7500 Manifolds.................................................................39

2.6.8 Dimensions: 7500 Manifolds ..................................................................39

2.6.7 Torque Requirements: 7500 Manifolds................................................... 39

3. Installation and Operation...................................................................40

3.1. For Gas Atmospheres................................................................................. 40

3.2. For Dust Atmospheres ................................................................................41

3.3. For Gas and Dust Atmospheres..................................................................41

3.4. Setting up the System ................................................................................. 41

3.5. Operating the System ................................................................................. 42

4. Programming ........................................................................................43

4.1. Touchscreen Display...................................................................................43

4.1.1 Contrast and Back Light ........................................................................43

4.1.2 LED Indication....................................................................................... 44

4.2. Default Settings...........................................................................................44

4.3. Menu Structure ........................................................................................... 45

4.4. Purge Programming Setting........................................................................ 46

4.4.1 Program 1...............................................................................................47

4.4.2 Program 2...............................................................................................48

4.4.3 Program 3...............................................................................................49

4.4.4 Program 4...............................................................................................50

4.4.5 Program 5...............................................................................................51

4.5. Purging Timer..............................................................................................53

4.5.1 Determining Purge Time.........................................................................53

4.5.2 Pressure Settings................................................................................... 54

4.5.2.1 Minimum Enclosure Pressure “P1”...................................................... 55

4.5.2.2 Alarm Pressure “P2”...........................................................................55

4.5.2.3 Purging Pressure “P3”.........................................................................55

4.5.2.4 Maximum Internal Pressure “P4”........................................................ 55

4.5.3 Programming K2 .................................................................................... 57

4.6. Shutdown Timer for K1................................................................................ 59

7500 SerieS Manual  Table of conTenTS

DOCT-B3R9 •10/2023

4.7. Bypass........................................................................................................59

4.8. Units............................................................................................................60

4.9. Change Password....................................................................................... 61

4.10. User Parameter Setting Sheet ..................................................................... 62

5. ProductIdentication ..........................................................................63

5.1. Specic Conditions of Use ......................................................................... 63

5.2. Applied Standards ...................................................................................... 63

5.3. Type Codes.................................................................................................64

5.4. Markings (Labelling) ...................................................................................66

6. Product Lifetime Care ..........................................................................68

6.1. Maintenance and Repair.............................................................................68

7500 SerieS Manual  Table of conTenTS

2018-12

1. Introduction

1.1. Content of this Document

This document contains information required to meet the safety and protection

requirements for systems with explosion protection in equipment Group II Zones 2 or

22, Class I or II, Division 2 when installing, commissioning, and using the 7500 control

unit and its components.This important information will help you use the 7500 purge

and pressurization system safely and correctly.

This may include information on the following:

 Product identication

 Delivery, transport, and storage

 Mounting and installation

 Maintenance and repair

 Disposal

Knowledge of the basic safety regulations and additional training and experience in

the area of explosion protection are essential for the safe handling and failure-free

operation of the 7500 series purge and pressurization system.

These operating instructions contain important data and information to ensure the

safe use of the 7500 system in hazardous areas and to meet the requirements of

Directive 2014/34/EU. This manual, particularly the safety information, must be

followed by all personnel who work on the system.

WARNING!

Failure to follow these instructions may impair the safety protection and

function of the equipment.

Note

For complete information on this product, see further documentation at

www.pepperl-fuchs.com.

Information about individual components can be provided on request.

The documentation comprises the following parts:

 This document

 Safety instruction manual

 Datasheet

7500 SerieS Manual  inTroducTion

DOCT-B3R9 • 10/2023

In addition, the documentation may comprise the following parts, if applicable:

 Manufacturer declaration of conformity

 EU declaration of conformity

 Additional documents

1.2. Target Group, Personnel

Responsibility for planning, assembly, commissioning, operation, maintenance, and

dismounting of the 7500 series lies with the plant operator. Personnel working on this

system must:

 be familiar with the occupational safety and accident prevention regulations and

have been briefed regarding handling of the unit.

 have the additional knowledge of explosion protection that is requied for work on

explosion-protected components.

 be familar with the relevant rules and regulations for the installation, operation,

and maintenance of explosion-protected systems.

 have read the safety section and warnings in this manual.

The operator and/or installer must also ensure that:

 the system is installed in accordance with the Specic Conditions of Use

 that the 7500 system is used as a purge controller and not protected by purging

and pressurization

 all electrical, mechanical, and pneumatic connections have been made in

accordance with this manual and any other applicable standards and laws.

1.3. Symbols Used

This document contains symbols to identify warning messages and information

messages.

Warnings

You will always nd warning messages whenever hazards could result from your

actions. It is essential that you observe these warning messages to ensure your

personal safety and to prevent property damage.

Warning messages are shown in descending order according to the risk level, as

follows:

7500 Series Manual

7500 SerieS Manual  inTroducTion

DOCT-B3R9 • 10/2023

DANGER!

This symbol warns you of an immediate and present danger.

If you do not observe this warning message, there is a risk of personal injury and

even death.

WARNING!

This symbol warns you of a potential fault or hazard.

If you do not observe this warning message, there is a risk of personal injury or

severe property damage.

CAUTION!

This symbol warns you of a potential fault.

Failure to observe this warning message may result in the malfunctioning or

complete failure of the product or any systems and plants connected to it.

Information Messages

Note

This symbol draws your attention to important information.

Action instructions

This symbol highlights an action.You are prompted to perform an action or sequence

of actions.

7500 SerieS Manual  inTroducTion

DOCT-B3R9 • 10/2023

1.4. Pertinent Laws, Standards, Directives, and

Further Documentation

NEC, CEC, and other national and local laws, standards, or Directives that are

applicable to the intended use and installation location must be observed. In relation

to hazardous areas, Directive 1999/92/EC must be observed.

The corresponding datasheets, EU Declaration of Conformity, EU Type Examination

Certicates, NEC/NFPA and CEC certicates, and control drawings, if applicable

(see datasheet), are an integral part of this document. You can nd this information

at www.pepperl-fuchs.com.

Due to constant revisions, documentation is always subject to change. Please refer

only to the most up-to-date version, which can be found at www.pepperl-fuchs.com.

1.5. Declaration of Conformity

All products were developed and manufactured under observance of the applicable

European standards and guidelines.

Note

A Declaration of Conformity is included with these instructions and can be

requested from the manufacturer or obtained online at www.pepperl-fuchs.com.

Additional documentation can also be provided for individual components.

The product manufacturer, the Pepperl+Fuchs Group, 68307 Mannheim, has a

certied quality assurance system that conforms to ISO 9001.

ISO9001

7500 SerieS Manual  inTroducTion

DOCT-B3R9 • 10/2023

2. Product Description

2.1. Introduction

Purge and pressurization is one of the most versatile ignition protection classes.

Purge and pressurization systems are based on the principle that in Zone 2/Class I

Division 2 (gas), the gas mixture in the ambient atmosphere, which may ignite under

certain circumstances, is removed from the housing by an initial purge process.

After the purge phase, suciently compressed inert gas, usually air, is supplied to

compensate for leaks in the housing and any installed equipment.This permanent

overpressure prevents any potentially explosive atmosphere in the ambient air from

entering the housing. During the purge phase, an internal pressure is achieved.

Any hot spots that may occur on individual components in the control cabinet are

monitored by temperature sensors (optional).

For applications in Zone 22/Class II Division 2 (dust), the purge process is omitted

because purging would raise explosive dust into a cloud, creating a possible hazard.

Instead of pre-purging, the interior of the housing is inspected for dust and cleaned

manually if dust is present.

Purge and pressurization systems are particularly suitable for installed equipment that

is not approved for use in hazardous areas.The equipment can then be used directly

in the hazardous area.

2.2. 7500 System Overview

The 7500 series system consists of a control unit, an enclosure protection vent, and

manual or automatic manifold. The control unit has a touch screen display that is

menu driven and will easily guide the user in selecting pre-programmed and user-

selected variables.The 7500 can be used with a digital valve/manifold system like the

7500-MAN-... or 5500-MAN-... unit to make a fully automatic system.The enclosure

pressure and leakage can be monitored and, in the event of a loss in enclosure

pressure, the solenoid valve can engage to restore the dened pressure settings and/

or alarm for the pressure drop. An easy-to-see display also has 4 LEDs for system

condition indication from a distance.

2.3. Control Unit

The 7500 control unit is a control device for Type Z & Ex pz purge systems and is

suitable for purge time and pressure monitoring in Class I or II, Division 2, Zone 2 or

22. It controls the volume of purge gas owing into the explosion-protected control

cabinet, and it maintains and monitors an overpressure relative to the ambient air

when purging is complete.

The 7500 control unit can be ordered as a stand-alone unit for panel mounting to your

enclosure or mounted to a panel with the 7500-MAN-MV-01 valve in a conguration.

7500 SerieS Manual  ProducT deScriPTion

DOCT-B3R9 • 10/2023

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