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D−GF 75

Burner control

Before starting any work, please read the Operating Instructions! This burner control must be installed in accordance with the applicable regulations.

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Item number.: 120 716

GmbH · Kollaustraße 105 · D-22453 Hamburg · www.durag.de

Original translation of Operating Instructions for Burner control D−GF 75

Document: mnx_dgf75_en.docx Version: 10.05.2012

Last updated: 10.05.2012 Previous version 31.01.2011

Print date: 10.05.2012

Approved for intermittent, continuous and 72-hour operation. Registered by DVGW.

D−GF 75 Test basis EN 230: 2005 EN 298: 2003 Gas Appliances Directive 2009/142/EEC

Fuel / Appliance Oil Gas

Register number ./. CE-0085CM0234

Item number.: 120 716

DURAG GmbH Tel:: +49 (40) 55 42 18 – 0 Kollaustraße 105 Fax : +49 (40) 58 41 54 22453 Hamburg E-Mail: [email protected] Internet: www.durag.de This documentation • (approx. 106 pages) was prepared with utmost care. • is not intended for the US market. Documentation to ANSI Z535 is available on request. Order

addresses can be found on page 105. • or parts thereof may not be reproduced or distributed without express permission from DURAG

GmbH, irrespective of how this is done, in what language or by what medium, electronic or mechanical.

• always relates to the complete device, even if individual program modules or parts have not been purchased

• relates to the current design of the device at the time of update of this documentation (see above).

• contains figures which may differ due to further technical developments or to the manageable scale of their actual appearance. No claims regarding the supply of identical products can therefore be derived from the illustrations shown.

• is subject to change without prior notice.

© DURAG GmbH 2012 Alle Rechte vorbehalten - All rights reserved.

mailto:[email protected]

Contents

D−GF 75 3

Contents

0 Foreword 7

1 General 11

1.1 Information about the operating manual 11 1.2 Explanation of symbols 12 1.3 Limitation of liability 13 1.4 Information on warranty 14 1.5 Customer service 14 1.6 Copyright 14

2 Safety instructions 17

2.1 Significance of warning notices used 17 2.2 Operator’s responsibility 18 2.3 Avoidance of consequential damage in the event of a system fault 19 2.4 General safety instructions 19 2.5 Personal protective equipment 20 2.6 Specific hazards 21 2.7 Designated use 23 2.8 Personnel 24 2.9 Behaviour in case of hazards and accidents 25 2.10 Description and location of safety equipment and emergency stop mechanisms 26

3 Brief information 29

3.1 Safety 29 3.2 Brief instructions 30

4 Product description 37

4.1 Information concerning delivery, transport, packaging and storage 37 4.2 Items supplied 39 4.3 (Optional) accessories 39 4.4 Information regarding warranty 39 4.5 Indentification of the product 40 4.6 System components 42 4.7 System description 42 4.8 Applications 45

5 Layout and function 49

5.1 Functional description of the system components 49 5.2 Program sequence flow chart 50 5.3 Program sequence descriptions 51 5.4 Program sequence table 52

Contents

4 D−GF 75

5.5 Program sequence line charts 54 5.6 Opening the housing cover for configuration 59 5.7 Assignment of config switches 60 5.8 Startup safety times 62 5.9 Monitor and safety chain 63 5.10 Setting the pre-purge time 63 5.11 Flame monitor 64 5.12 Using an external flame monitor 64

6 Configuration, installation, commissioning 67

6.1 Safety 67 6.2 Preparation for installation 68 6.3 Installation 69 6.4 Commissioning 71 6.5 Dismantling and disposal of the D−GF 75 72

7 Maintenance 75

7.1 Customer service information 76 7.2 Maintenance operations 76 7.3 Faults 79

8 Technical data 83

8.1 General device data 83 8.2 Supply voltages 83 8.3 Technical data for inputs 83 8.4 Technical data for outputs 84 8.5 Default settings (ex works) 85 8.6 Description of terminals 85 8.7 List of error messages 89

9 Device fuses 94

10 Dimensional drawings, wiring diagrams 95

11 Declaration of conformity, approval 99

11.1 EC Declaration of Conformity 99 11.2 EC type test certificate 100

12 Glossary 102

13 Index 103

14 DURAG GROUP company addresses 105

Contents

D−GF 75 5

List of tables Table 3.1 Table LED status signals 33 Table 5.1 Program sequence-table 53 Table 5.2 Symbols in line charts 54 Table 5.3 Line depiction in the area of the inputs and outputs 54 Table 5.4 Assignment/function of config switches 60 Table 5.5 First safety time and FFRT for operation 62 Table 6.1 Checklist of operating conditions 69 Table 6.2 Checklist of commissioning conditions 71 Table 8.1 Description of terminals 88 Table 8.2 Error messages and remarks 93 Table 9.1 List of device fuses 94

List of figures Figure 3.1 Connection (standard connection) 31 Figure 3.2 Position of LEDs 32 Figure 4.1 Product identification 40 Figure 4.2 System components 42 Figure 4.3 View 42 Figure 4.4 Block diagram 44 Figure 5.1 Program sequence-flow chart 50 Figure 5.2 Line chart: Operation with pre-purging and air pressure test 55 Figure 5.3 Line chart: Operation with pre-purging without air pressure test 56 Figure 5.4 Line chart: Operation without pre-purging with air pressure test 57 Figure 5.5 Line chart: Operation without pre-purging and without air pressure test 58 Figure 5.6 Opening the housing cover 59 Figure 5.7 Config switch assignment 60 Figure 5.8 Position of config switches 61 Figure 5.9 Config switches: Setting of the first safety time 61 Figure 5.10 Config switches: Setting of the flame failure response time 62 Figure 5.11 Config switches: Setting of the pre-purge time 62 Figure 5.12 Config switches: Setting of the air pressure test and re-cycling 62 Figure 5.13 Example of a failsafe safety chain 63 Figure 5.14 Config switches: Setting of the pre-purge times 64 Figure 7.1 Exchanging the Burner control 78 Figure 7.2 Fitting the plugs 79 Figure 10.1 Dimensional diagram 95 Figure 10.2 Wiring diagram: Signalling to higher-level control system when operational state is reached

96 Figure 10.3 Wiring diagram: Increase in output on reaching operational state 97

0. Foreword

D−GF 75 7

0 Foreword

The aim of this manual is to help you start using your DURAG product. This publication contains information and technical data relating to the planning, functional characteristics, mounting/commissioning, operation and maintenance of the Burner control. We hope that our products and services make a significant contribution to your success. We will be delighted if the information provided achieves this.

Should you have any further questions on products or applications from the DURAG GROUP, please contact our Support & Service units. You will find the addresses and telephone numbers on page 105 (DURAG GROUP company addresses ).

Further information is also available from www.durag.de

D−GF 75 Burner control

01 1 General

1.1 Information about the operating manual 1.2 Explanation of symbols 1.3 Limitation of liability 1.4 Information on warranty 1.5 Customer service 1.6 Copyright

1. General

D−GF 75 11

1 General

The product described in this operating manual left the factory in good working order and in a flawless and tested condition. To maintain this condition and to achieve correct and safe operation of this product, it may only be used in the way described by the manufacturer. In addition, the flawless and safe operation of this product requires appropriate transport, correct storage and installation, as well as careful operation and maintenance.

This operating manual contains the necessary information for using the described product for its intended purpose. It is intended for technically qualified personnel who have been familiarised with the product, who are specially trained or have pertinent knowledge in the field of measurement and control engineering, referred to as automation technology in the following.

The knowledge and the technically flawless implementation of the safety instructions and warnings contained in this operating manual are necessary for safe assembly and commissioning, as well as for safety during operation and maintenance of the described product. Only suitably qualified personnel have the specialist knowledge necessary to interpret the generally applicable safety instructions and warnings provided in this documentation correctly in the specific, individual case and to apply the correct procedure accordingly.

This operating manual forms a constituent part of the scope of delivery. For the sake of clarity, it does not include all details relating to the different versions of the described product, nor can it take into account every conceivable scenario in respect of the installation, operation and maintenance of the product and its use as part of a wider system.

Should you require additional information or if problems occur which are not adequately described in this document, please request the necessary information from your DURAG GROUP dealer or agent (see page 104).

1.1 Information about the operating manual This operating manual provides important information on working with the Burner control D−GF 75. Compliance with all specified safety instructions and handling guidelines is a prerequisite for safe working.

The locally applicable accident prevention regulations and general safety legislation must also be adhered to for the Burner control and its field of application. This Burner control must be installed in accordance with the applicable regulations.

Before starting any work, read the operating instructions!

Pay particular attention to the safety instructions in chapter 2. The operating manual is an integral part of the product and must be kept in the immediate vicinity of the Burner control D−GF 75. It must be available to personnel at all times..

1. General

12 D−GF 75

This documentation • (approx. 106 pages) was prepared with utmost care. • is not intended for the US market. Documentation to ANSI Z535 is available

on request. Order addresses can be found on page 105. • or parts thereof may not be reproduced or distributed without express

permission from DURAG GmbH, irrespective of how this is done, in what language or by what medium, electronic or mechanical.

• always relates to the complete device, even if individual program modules or parts have not been purchased

• relates to the current design of the device at the time of update of this documentation (see above).

• contains figures which may differ due to the manageable scale of their actual appearance. No claims regarding the supply of identical products can therefore be derived from the illustrations shown.

• is subject to change without prior notice

1.2 Explanation of symbols In order to make the text in these instructions clear, text elements such as safety instructions, warnings, tips, keyboard symbols, menu addresses etc. are displayed differently.

Warning notices Safety and warning remarks in this manual look like this:

DANGER! The watchwords DANGER!, WARNING!, CAUTION! denote different danger situations. The significance of these watchwords is described in chapter 2.1 from page 17 onwards.

Tips and recommendations An instruction or tip is shown as follows:

... highlights useful tips and recommendations, as well as information aimed at ensuring efficient and fault-free operation.

Other symbols used Symbole As well as warning and safety remarks, the following remarks and the relevant pictograms are also used:

1. General

D−GF 75 13

Contains instructions for environmental protection

Before starting any work, read the operating instructions!

• This DIP switch is OFF

• This DIP switch is ON

• (→) indicates that the following term is explained in the glossary. • Unless otherwise specified: all dimensions in mm • This manual is also available as a PDF file!

1.3 Limitation of liability All information and instructions in this manual have been compiled on the basis of the applicable standards and regulations, current technology and many years of knowledge and experience. The manufacturer accepts no liability for damages arising from: • Failure to adhere to the operating instructions • Incorrect use • Employment of unauthorised personnel • Unauthorised modifications • Technical changes • Use of unapproved spare parts • Use of defective and/or improperly repaired devices The owner is required to ensure that the determined and defined configuration settings of the D−GF 75 are not (cannot be) modified without the relevant approval for as long as the Burner control is in use. This includes protection of the network against unauthorized intrusion using the latest protective measures in compliance with the state of the art. Any damage or consequential damage caused as a result of unauthorized modifications are excluded on principle from any liability on the part of DURAG GROUP member companies.

Furthermore, the obligations agreed in the contract of sale, the general conditions of business ("Conditions of supply for goods and services in the electrical industry" (ZVEI)) and the manufacturer's Conditions of Supply, together with the statutory regulations in force at the date of signing the contract are all applicable.

1. General

14 D−GF 75

1.4 Information on warranty The terms of the warranty can be found as a separate document in the General Terms and Conditions of Business.

Conversions and modifications to the Burner control are not admissible. Any tampering with the device will invalidate the warranty.

Burner controls are devices subject to type approval. Any intervention or modifications will render the approval null and void. It is expressly pointed out that the personnel qualifications mentioned above do not authorize intervention in devices with type approval. Repairs may only be performed by the manufacturer or its designated agents. Only in this way is it possible to ensure that the prescribed tests and measurements can be performed following repairs or other procedures (using the necessary special devices and with the requisite specialist expertise). Burner controls are used to ensure the safe operation of burner installations. The reliability of these devices is vital, and requires particularly careful checking of all functions with a subsequent acceptance procedure following any intervention.

Fault-free and safe operation of the device depends on appropriate transportation, correct storage, installation and assembly as well as careful operation.

1.5 Customer service Our Service Department is available to provide any technical information you may require. Information about responsible agencies, offices and partners can be obtained at any time via the Internet. See the manufacturer addresses listed on page 2, or DURAG GROUP company addresses on page 105.

1.6 Copyright This manual must be treated confidentially. It is intended exclusively for personnel employed to use the Burner control. Passing on this manual to third parties without the written consent of the manufacturer is not permitted.

No part of the operating manual may be duplicated or transferred without the written consent of the manufacturer or translated into any other languages, irrespective of the method or means, whether electronically or mechanically. © DURAG GmbH 2012 All rights reserved.

The specifications, texts, drawings, pictures and other information contained in this document are protected by copyright and subject to industrial property rights. Any improper use is punishable by law.


02 2 Safety instructions

2.1 Significance of warning notices used 2.2 Operator’s responsibility 2.3 Avoidance of consequential damage in the event of a system fault 2.4 General safety instructions 2.5 Personal protective equipment 2.6 Specific hazards 2.7 Designated use 2.8 Personnel 2.9 Behaviour in case of hazards and accidents 2.10 Description and location of safety equipment and emergency stop mechanisms

2. Safety instructions

D−GF 75 17

2 Safety instructions

Read the operating manual prior to installation or commissioning of the device! The information contained in the operating manual is important for your safety and to prevent damage to the D−GF 75 and the environment. The operating manual forms a constituent element of the described device. The operating manual must be made available to operating staff at all times. This Burner control must be installed in accordance with the applicable regulations.

The law requires that we provide important information for your safety and inform you of how to prevent damage to the device and to other facilities. If you fail to take note of these instructions, the manufacturer may not be made liable for damage caused as a result of negligent or intentional disregard of the information provided in these instructions! Observe the following warning and safety instructions in this operating manual. They are there to help avoid hazards that could endanger life or cause injury to personnel, and for avoidance of damage to property. They are also intended to ensure safe and fault-free operation.

2.1 Significance of warning notices used The warning and safety notices contained in this manual are emphasized by using the signal terms defined here. They are also identified by symbols at the locations where they occur. The signal terms have the following meanings in this manual and in notices on the product itself:

Warning notices

DANGER! ... refers to an immediately hazardous situation, which if not prevented will result in death or serious injury.

WARNING! ... refers to a possibly hazardous situation, which if not prevented may result in death or serious injury.

CAUTION! ... refers to a possibly hazardous situation, which if not prevented may result in slight or minor injury.


18 D−GF 75

ATTENTION! ... refers to a possibly hazardous situation, which may result in damage to equipment and the environment if not prevented.

Specific safety instructions To draw attention to specific hazards, warning notices and signal words are used in conjunction with the following symbols:

General warning symbol

Explosion

Electric power

Electrostatically sensitive components (ESD)

Hot surface

2.2 Operator’s responsibility The Burner control is used in commercial operations. The operator of the Burner control is therefore subject to the statutory health and safety obligations, along with the applicable directives, legislation and standards. In addition to the health and safety instructions contained in this operating manual, the safety regulations, accident prevention regulations and environmental protection regulations for the application in which the Burner control is used must be complied with. The following rules in particular are applicable:

• The operator must obtain information about the applicable health and safety regulations and perform a risk assessment to determine any additional hazards that arise due to the special working conditions at the place of use of the Burner control. He must implement these in the form of operating instructions for operation of the Burner control.

• Throughout the period of use of the Burner control, the operating company must check whether the operating instructions that he has written satisfy the latest issue of the regulations, and must update them as required.

• The owner is required to ensure that the determined and defined configuration settings of the D−GF 75 are not (cannot be) modified without the relevant approval for as long as the Burner control is in use. This includes protection of the network against unauthorized intrusion using the latest protective measures in compliance with the state of the art. Any damage or consequential damage caused as a result of unauthorized modifications are excluded on principle from any liability on the part of DURAG GROUP member companies.


D−GF 75 19

• The operator must clearly regulate and specify who has responsibility for installation, operation, maintenance and cleaning.

• The operator must ensure that all employees who deal with the Burner control have read and understood the operating instructions. In addition, at regular intervals they must train the personnel and inform them about the hazards.

• Furthermore the operator is responsible for ensuring that the Burner control is in a technically fault-free condition at all times, i.e. that the maintenance work has been performed (see section ).

• The operator must provide the necessary protective equipment for personnel.

2.3 Avoidance of consequential damage in the event of a system fault

Where the D−GF 75 is used as a link in a control and instrumentation chain, the owner must take steps to guarantee that failure or a system fault in the D−GF 75 does not …

• place the overall system in a state liable to result in damage. • cause direct or indirect injury or material damage.

To prevent and limit faults, the owner must take steps to ensure that:

• responsible maintenance personnel are available at short notice at any time. • maintenance personnel have been trained to identify and rectify faults in the

D−GF 75 and the associated systems. • defective system components can be switched off immediately. • switching off the system will not result in incalculable consequential damage

or faults.

2.4 General safety instructions The DURAG Burner control D−GF 75 is designed and built using state of the art technology and complies with the recognised safety regulations. Despite this, hazards can arise.

Therefore operate the product only when it is in perfect condition, and observe the operating instructions. Any change to normal operation should be taken as a serious indication of impaired functionality. In this regard, pay attention to:

• emission of smoke or unusual smells, • excessive temperatures of system components, • changes in power consumption without obvious cause, • the tripping of monitoring devices, • abnormal operating noises in the blower, • unusual vibrations, • unusual, pronounced fluctuations or shifts in measurement results. The Burner control described here is a safety device. It consists of the control unit and an optical flame sensor. Improper use of handling can result in health


20 D−GF 75

hazards or material damage. Therefore, please read through this section thoroughly.

The following warning notices and safety instructions apply to the D−GF 75:

• The statutory stipulations applicable to the system and the technical rules which implement these stipulations must be adhered to in the preparation and execution of work.

• Persons working with the system must take account of the local, system-specific conditions and operational hazards and regulations.

• Operating manuals, instructions and documentation belonging to the D−GF 75 must be kept available on site. The information highlighted for the prevention of hazards and damage must be complied with.

• Suitable protective devices and personal safety equipment must be made available in adequate quantities on site and used by personnel in a way that is appropriate to the relevant hazard potential.

• The device may only be operated when in perfect working order and with observance of the safety instructions!

• The device as a whole and also its individual components may be used only when in their original configuration. If elements are replaced, the manufacturer's genuine parts must be used


2.5 Personal protective equipment During work, it may be necessary to wear personal protective equipment to minimise health hazards. Detailed specifications must be set out by the operator depending on the potential plant-specific hazards.

• The protective equipment necessary for the relevant work must be worn at all times.

• Observe any signs provided in the work area relating to personal safety equipment.


D−GF 75 21

2.6 Specific hazards Im folgenden Abschnitt werden verbleibende Restrisiken benannt. Die hier aufgeführten Hinweise und die Sicherheitshinweise in den weiteren Kapiteln dieser Betriebsanleitung beachten, um Gesundheitsgefahren zu reduzieren und gefährliche Situationen zu vermeiden.

2.6.1 Hazards due to electrical equipment This device system is operated by electricity. For this reason, work on this equipment must only be carried out by suitably qualified personnel. Personnel deployed for this purpose must be thoroughly familiar with all sources of danger in accordance with these operating instructions. Any intervention in the D−GF 75 or any modifications will render the approval null and void. Repairs may only be performed by the manufacturer or its designated agents.

DANGER!

Danger of fatalities due to electrical current! Coming into contact with live parts poses a direct risk of fatalities. Damage to the insulation or to individual components can lead to fatal injury.

• If there is any damage to the insulation, switch off the power and have it repaired.

• Before starting work, switch off the power supply and secure against it being inadvertently switched back on.

• Before removing the housing or contact guard, disconnect the devices from the mains supply and check that they are no longer live.

• Permit only electricians to work on electrical equipment. • Never bypass or disable fuses. When replacing fuses, always comply with

the correct amperage and the correct characteristics. • Keep live components free of moisture. Moisture can lead to short circuits. • When connecting the device, adhere to the relevant VDE regulations and

any supplementary rules imposed by the local energy utility company.

• The devices may only be connected to the supply voltage stipulated on the rating plate.

• The devices may only be operated using a power supply that includes an earth contact. The protective effect must not be lost by use of a power supply extension that lacks an earth conductor. Any discontinuity of the earth conductor within or outside the device is dangerous and is not permissible.

• Cables must be routed so as exclude the possibility of a risk of accident by persons stumbling over them or hanging from them.

This control unit was produced in such a way as to guarantee reliable isolation between the primary and secondary circuits. Low voltages that are connected must therefore also be generated with safe separation. In particular, devices connected to the fieldbus interface (M12 connector / RS485) must be safely isolated from the mains voltage (e.g. according to the requirements of DIN EN 60950 / VDE 0805).


22 D−GF 75

CAUTION! Damage to electronic components due to electrostatic discharge (ESD) Electronic components are becoming increasingly small and complex. Their susceptibility to damage from electrostatic discharge is increased accordingly. To protect these components, measures must be undertaken to prevent electrostatic discharge for all work performed on the open device (ESD protection). To prevent static discharge from the human body, servicing personnel may be equipped, for instance, with a personal earthing system.

Electronic components are becoming increasingly small and complex. Their susceptibility to damage from electrostatic discharge is increased accordingly. To protect these components, measures must be undertaken to prevent electrostatic discharge for all work performed at the open device. To prevent static discharge from the human body, servicing personnel may be equipped, for instance, with a personal earthing system.

2.6.2 Hazard due to hot, aggressive or explosive gases

DANGER! Danger due to potentially explosive atmosphere! Using the Burner control D−GF 75 in potentially explosive atmospheres or in explosive gas mixtures can pose a risk of fatal injury. Observe the warning signs. The Burner control D−GF 75 described here is not suitable for use in potentially explosive atmospheres or in explosive gas mixtures. .

CAUTION! Danger of burns due to hot surfaces! Incorrect handling of the equipment can result in serious personal injury. Never touch parts which could be hot without temperature-resistant equipment or protective gloves.

The flame sensor(s) is (are) mounted directly on the boiler. If these devices become detached from the sighting tube, gas can escape from the boiler chamber through the flange connection, particularly in the event of over-pressure, and cause serious damage to health if maintenance personnel are unprotected. The owner is required to provide suitable warning notices to this effect:

DANGER! Special danger due to gases When detaching the flange connection to the combustion chamber, it is possible for hot or injurious gases to emerge and give rise to hazards, including serious burns. Personnel must put on protective clothing and a protective mask beforehand where necessary.

Danger of blinding Never look into the opened sighting tube without eye protection. The radiation from the flames or emerging hot gases can cause lasting eye damage or blindness. Before performing this task, always put on suitable protective clothing (such as face mask and goggles). "Gas hazard", do not delete

Adhere to applicable regulations and safety requirements for the system.


D−GF 75 23

2.7 Designated use

WARNING! Danger when using for any other than the intended application! Any use above and beyond or other than the stipulated application of the burner control can give rise to hazardous situations. There is a risk of personal injury and material damage. Only ever operate the Burner control compliance with the information stated on the rating plate and the parameters mentioned in the Technical data on page 83. All specifications in this operating manual must be strictly adhered to!

No claims of any kind whatsoever may be asserted on the basis of damage caused by misuse.

The operator bears sole liability for all damage caused by non-designated use.

The Burner control D−GF 75 is a safety device suitable for controlling and monitoring gas and oil burners / gas and oil-fired igniters of any capacity using different combustion methods in single or multiple burner installations. The program sequence for pre-purging and ignition may be adjusted flexibly to the requirements of the system taking into consideration the relevant valid regulations. Applications for these devices include for example large-scale power plants through to small district heating plants, chemical process or exhaust gas combustion systems as well as industrial thermoprocessing plants and industrial ovens.

The failsafe operating Burner control is designed in accordance with standards EN 230 (oil) and EN 298 (gas) for intermittent operation and continuous operation.


We will be pleased to advise you on the design and layout of your project and to provide the background information required for successful and safe planning. Use the DURAG GROUP's Support & Service. Benefit from our many years of experience. You will find the addresses and telephone numbers on page 105 (DURAG GROUP company addresses company addresses).

The Burner control D−GF 75 is type approved by TÜV Süddeutschland test inspectorate and approved for intermittent (D−GF 75-10) and continuous (D−GF 75-20) operation. Registered by the DVGW.

The D−GF 75 has been developed, produced, tested and documented in compliance with the relevant safety standards. If the regulations and safety instructions for planning, installation, proper use and maintenance are observed, the device should normally pose no hazards in terms of material damage or potential health risks.

For this device to operate satisfactorily and safely, it must be correctly transported, stored, mounted and assembled, and also carefully operated and maintained by qualified personnel.

The device is intended solely for the purpose described above. Any other use is deemed not to be in compliance with the device's intended purpose.


24 D−GF 75

The life of the device is estimated at 10 years (or 250,000 cycles). By then at the latest it must be inspected and undergo a general overhaul by the manufacturer.(see also 1.4 Information on warranty starting on page 13).

For testing and approval information, see page 2, or chapter 11 starting on page 99.

2.8 Personnel

2.8.1 Personnel, qualifications

WARNING! The deployment of insufficiently qualified personnel poses a risk of injury! Incorrect handling and operation can result in serious injury and material damage. Only ever have work performed by suitably qualified specialist staff. In particular, ensure that the warnings provided in this manual for the protection of personnel and control systems are known, understood and observed. Original bookmark: “Personnel qualification hazard”, do not delete.

The following qualifications are required for the various fields of activity in connection with the Burner control D−GF 75:

• Skilled personnel who because of their specialist training, knowledge and experience of the applicable regulations are able to make independent judgements about execution of their work and assessment of the potential hazards.

The following knowledge is specifically required:

• Exact knowledge of operational hazards (e.g. due to toxic, hot or pressurised gases, gas-liquid mixtures etc.).

• Knowledge of conditions in the system, applicable standards, directives and accident prevention regulations, familiarity with VDE directives and accident prevention regulations.

• Adequate knowledge of the system acquired by participation in relevant training courses. DURAG offers appropriate training courses in this respect. For information, please contact your DURAG agent. You will find the addresses and telephone numbers on page 105 (DURAG GROUP company addresses )

• Knowledge of first-aid measures and local emergency facilities A definition of adequately skilled personnel is provided in DIN VDE 0105 or IEC 364 or directly comparable standards.

Such personnel are accredited as persons who can be expected to perform their work reliably. Persons whose responsiveness is compromised by substances such as drugs, alcohol or medications will not be accredited. When selecting personnel, the local regulations regarding age and professional qualifications should be complied with.


D−GF 75 25

2.8.2 Unauthorised personnel

WARNING! Danger for unauthorized persons! Unauthorized persons who fail to comply with the requirements outlined here are not aware of the dangers existing within the work area. Incorrect behaviour can result in serious injury and material damage. Consequently:

• Ensure that unauthorised personnel do not enter the working area. • In case of doubt, approach personnel and instruct them to leave the

working area. • Interrupt work if necessary for as long as an unauthorized person remains

in the work area.


2.9 Behaviour in case of hazards and accidents

Preventive measures • Always be prepared for accidents or fire. Note emergency numbers. • First aid facilities (first aid kit, blankets etc.) and fire extinguishers must be

kept in easy reach. • Familiarise personnel with accident reporting, first aid and emergency

equipment. • Keep access routes for emergency vehicles clear.

In case of emergency: Correct actions • Where applicable, cease operation of the plant or machine immediately

using the emergency stop. • Only if it is possible to guarantee your own safety, help other persons to

leave the danger zone. • Initiate first aid measures. • Notify the person responsible at the place of use. • Notify a doctor and/or the fire brigade. • Clear access routes for emergency vehicles.


26 D−GF 75

Emergency reporting - Doing it correctly Dial the emergency call number. Speak slowly, loudly and clearly, ensuring the information you give is clear:

• Where did it happen? - Exact location information is required: • What happened? - Is it a fire, an explosion or an operational accident. Are

any people trapped or buried?. • How many people are injured? • What injuries do they have? - Is the patient responsive? Are there any

breathing or circulation problems? Is anyone bleeding heavily? • Wait for any queries

2.10 Description and location of safety equipment and emergency stop mechanisms

The operator must incorporate safety measures into the safety concept for the overall system. This includes the description and location of safety equipment and emergency stop mechanisms.


03 3 Brief information

3.1 Safety 3.2 Brief instructions

3. Brief information

D−GF 75 29

3 Brief information

This chapter provides a summary of the most important information for the set-up and operation of the Burner control D−GF 75. The chapter is intended for operating and maintenance staff who already have experience of working with the monitoring system, are familiar with the operating manual and wish to use the brief information to ensure that they have not overlooked any important points. You must be familiar with the comprehensive information in the other sections of this operating manual before using the brief information. Please also observe the safety instructions. They are intended to prevent the risk of fatal accident and serious injury to users and maintenance personnel, as well as avoiding material damage.

3.1 Safety

DANGER!

Danger of fatalities due to electrical current! Coming into contact with live parts poses a direct risk of fatalities. Damage to the insulation or to individual components can lead to fatal injury.

• If there is any damage to the insulation, switch off the power and have it repaired.

• Before starting work, switch off the power supply and secure against it being inadvertently switched back on.

• Before removing the housing or contact guard, disconnect the devices from the mains supply and check that they are no longer live.

• Permit only electricians to work on electrical equipment. • Never bypass or disable fuses. When replacing fuses, always comply with

the correct amperage and the correct characteristics. • Keep live components free of moisture. Moisture can lead to short circuits. • When connecting the device, adhere to the relevant VDE regulations and

any supplementary rules imposed by the local energy utility company.


CAUTION! Danger of burns due to hot surfaces! Incorrect handling of the equipment can result in serious personal injury. Never touch parts which could be hot without temperature-resistant equipment or protective gloves.


30 D−GF 75



Burner controls are devices subject to type approval. Any intervention or modifications will render the approval null and void. It is expressly pointed out that the personnel qualifications mentioned above do not authorize intervention in devices with type approval. Repairs may only be performed by the manufacturer or its designated agents. Only in this way is it possible to ensure that the prescribed tests and measurements can be performed following repairs or other procedures (using the necessary special devices and with the requisite specialist expertise). Burner controlssafe operation of burner installations. The reliability of these devices is vital, and requires particularly careful checking of all functions with a subsequent acceptance procedure following any intervention.

3.2 Brief instructions

3.2.1 Installation sequence 1. Check the prerequisites for use (see 6.2.3 starting on page 68). 2. Plan the installation locations. 3. Mount and align the burner/igniter (observe the installation instructions for

the burner/igniter). 4. Lay the connecting cable. 5. Assemble and connect the Burner control. 6. Carry out electrical connection of the components. 7. Carry out necessary settings on the Burner control. 8. Commission the Burner control and carry out a function check.


D−GF 75 31

3.2.2 Connection (standard connection)

Figure 3.1 Connection (standard connection) Other connection examples can be found starting on page 95. Also observe Table 8.1 Description of terminals (page 88).

3.2.3 LED status- and error messages The current status of the system can be read from the signals of the LEDs at the front of the Burner control housing. The significance of the standard LED signals is explained in Table 3.1 below. Detailed information on this subject can be found in the Program sequence-table (Table 5.1) starting on page 53.

The Burner control also signals an error number in case of an error, and also the program step in which the error occurred. The message is indicated by flashing LEDs.

The red LED lights up continuously while the flashing yellow LEDs display the error number. LED1 (very top, yellow) signals the tens digit and LED2 (2nd from the top, yellow) signals the unit digit of the signalled number.

The green LED also lights up when the flashing yellow LEDs display the program step in which the error has occurred.


32 D−GF 75

LED1 (very top, yellow) signals the tens digit and LED2 (2nd from the top, yellow) signals the unit digit of the program step. For further information, see chapter 7.3 Faults starting on page 79.

Figure 3.2 Position of LEDs Legend Table 3.1 and Table 5.1:

Meaning of LED signals LEDs

yello

w

yello

w

yello

w

yello

w

yello

w

gree

n

red

Abbreviations: STB Standby GEB Blower ZTR Ignition transformer

V1 Valve 1 V2 Valve 2 FLA Flame STO Fault

STB

GE

B

ZTR

V1

V2

FLA

STO

LEDs for displaying the program step / current action

LED for flame ON display

LED for fault

in error mode: Display of error number

in error mode: Display of program step

LED on LED off LED flashing

Example: Program step 12, air press. build-up


D−GF 75 33

Signals: (for detailed information see 5.4 Program sequence-table page 52)

Program step Status (current action)


yello

w

yello

w

yello

w

yello

w

yello

w

gree

n

red

STB

GE

B

ZTR

V1

V2

FLA

STO

Ps10 Air pressure OFF signal

Ps11 Standby

Ps12 Air pressure build-up

Ps20 Pre-purging

Ps30 Ambient light test

Ps31 Pre-ignition

Ps32 Open valve 1

Ps33 First safety time valve 1

Ps34 Flame stabilization

Ps40 Connect valve 2

Ps50 Shutoff

Ps51 Flame OFF signal

Table 3.1 Table LED status signals See also Table 8.2 Error messages and remarks (page 93).


04 4 Product description

4.1 Information concerning delivery, transport, packaging and storage 4.2 Items supplied 4.3 (Optional) accessories 4.4 Information regarding warranty 4.5 Indentification of the product 4.6 System components 4.7 System description 4.8 Applications

4. Product description

D−GF 75 37

4 Product description

In this section you will find information about the scope of delivery, special accessories, certifications, warranty and application areas, in short everything that has anything to do with the physical characteristics of the D−GF 75 system.

4.1 Information concerning delivery, transport, packaging and storage

The items delivered according to the valid sales contract are listed on the shipping documents enclosed with the delivery. Check that the shipment is complete and undamaged.

Where there are extreme fluctuations of temperature and moisture, condensation can cause moisture to build up within the Burner control. This can cause a short circuit. After transporting the device, wait before commissioning until the device has reached the ambient temperature, also on the inside.

4.1.1 Transport The Burner controlen is an electronic control and regulation device. As with all electronic devices it must be handled with the necessary care. No additional protective measures are required for transport. Other than the built-in electronics, it does not contain any particularly sensitive components. However, it is advisable to avoid major knocks and also moisture.

Transport inspection Upon receipt, immediately check the delivery for completeness and transport damage. If any external damage in transport is evident:

1. Immediately report any damage to the carrier and DURAG GROUP DURAG GROUP company addresses see pag 105

2. Give only qualified acceptance of the delivery. 3. Endorse the transport documents or the carrier’s delivery note with

particulars of the damage. 4. Submit the claim. Transport damage not evident at first sight must be the subject of a claim within 7 days.

Submit a claim for every defect as soon as it is detected. Claims for damages can only be made within the contractual time limits for claims.


38 D−GF 75

Packaging The individual packages are packed according to the anticipated transportation conditions. Exclusively environmentally friendly materials are used for packaging. The packaging is designed to protect the individual components from transportation damage, corrosion and other types of damage up until they are mounted. Do not destroy the packaging and only remove it shortly before installation.

Where possible, use the original packaging for future transportation. The materials and any moulded packing used is designed to ensure safe transportation.

Handling packaging materials If no return agreement has been made for the packaging, separate the materials by type and size and either store for further use or send for recycling.

Incorrect disposal can harm the environment Packaging materials are valuable raw materials and in many cases can be reused or processed and recycled. Dispose of packaging materials responsibly. The locally applicable disposal regulations must be adhered to.

Storage conditions Store the Burner control and spare parts under the following conditions:

• Do not store in areas with a risk of explosion or in the open air. • Store in a dry, dust-free location. • No not expose to aggressive media. • Avoid storage below the dew point. • Protect the Burner control from mechanical damage.

• Storage temperature: 0℃ to 45℃

• Relative humidity: Max. 60% • If stored for longer than 3 months, regularly check the general condition of

all parts and the packaging. If required, top up or replace the anti-corrosion agent. The transport packaging is not normally suitable for long-term storage

Under some circumstances, the packages may display additional storage instructions to the requirements set out here. These must be observed.


D−GF 75 39

4.2 Items supplied

Scope of delivery of the standard overall system D-GF 75:

D−GF 75-10 Burner control with attached socket strips approved for intermittent operatio D−GF 75-20 Burner control with attached socket strips approved for continuous operation

Printed Operating Instructions

4.3 (Optional) accessories

optional special accessories D-GF 75::

D-LX 100 compact flame monitor

kleZ912F0 connecting cable for connection of the ionisation electrode to the internal ionisation flame monitor of the D-GF 75 max. length 150 m

Operating Instructions on CD

4.4 Information regarding warranty We point out that the content of this operating manual is not part of, nor is it intended to change, any earlier or existing agreement, assurance or legal relationship. The warranty for the devices of the DURAG GROUP is generally 12 months from date of delivery. All obligations result from the respective sales contract, which also contains the complete and authoritative warranty provisions. These contractual warranty regulations are neither extended nor restricted by the explanations provided in this operating manual.

Conversions and modifications to the Burner control are not admissible. Any work on the device will cause the warranty to lapse.


40 D−GF 75

As Burner controls are type approved devices, any attempted modification will render the approval null and void.

Fault-free and safe operation of the device depends on appropriate transportation, correct storage, installation and assembly as well as careful operation.

Safety-relevant components such as Burner controls are expected to ensure a high degree of reliability. Careful maintenance is a fundamental requirement to ensure safe and reliable operation. Only in this way is it possible to recognize and eliminate functional anomalies at an early stage. At latest approx. 10 years (or 250,000 cycles) after first commissioning the Burner control in normal atmospheres and with normal frequency of use, the tests and maintenance measures prescribed by the manufacturer for the product must be performed by the manufacturer or its authorized agent. These measures can also result in the necessity to exchange the product.

4.5 Indentification of the product

The rating plate with serial number is located:

in the case of Burner controls on the right-hand side of the device.

Figure 4.1 Product identification


D−GF 75 41

4.5.1 Information about the rating plate The information on the rating plate has the following meaning:

1 0085

Declaration of conformity, type approval supplied with ID no. of inspection agency

2 Prod-ID-No: CE 085… Product ident number

3 Part-No.: Order number 4 D-GF 75 Device type designation 5 -10 Device version (as per order) 6 101254 Order number 7 230 Vac Permitted operating voltage 8 Ser.-No.: Serial number 9 O 02 Batch code

10 05 Device number 11 DURAG GmbH Manufacturer 12 22453 Hamburg Manufacturer’s address / (www.durag.de)

13 Before starting any work, read the Operating Instructions!

14 Contact load Permitted contact load 15 -20…+60°C Permitted ambient temperature 16 IP20 Protection type AP ./. Wiring diagram Figure 4.1 Example of rating plate D−GF 75


42 D−GF 75

4.6 System components

Legend

L Air

G Gas

GEB Blower

P Air pressure sensor

V1 Valve 1

V2 Valve 2

Figure 4.2 System components

4.7 System description The housing is made of high-grade plastic material.

The components complement each other to create a failsafe Burner control system. This can be used to control and monitor gas and oil burners / gas and oil-fired igniters of any capacity and using different combustion methods in single or multiple burner installations.

Legend

1 Config switches (under the housing cover)

2 Plug-in terminal block (plug)

3 Screw terminals

4 Recess

5 Reset button

6 Status display using 7 LEDs

7 Removable housing cover

8 Housing

9 Wiring diagram

10 Rating plate (on left side of housing, not visible)

Figure 4.3 View


D−GF 75 43

4.7.1 Technical features of the control unit: • The entire program sequence is made transparent by display elements. In

the event of a fault, the output of an error number permits the cause of the fault to be more easily located.

• The Burner control is equipped with an input for an external flame monitor (FLX) which can be connected as an alternative to the internal flame monitor (FLI) (logical OR operation).

• All monitoring modes are suitable for continuous operation. • The pre-purge time (0s/30s/60s/120s) can be set using the config switch. • All safety-relevant relay contact outputs are internally fed back for

verification of the contact position via () optocouplers. • The control unit performs a self-test after being switched on. This self-test is

continuously repeated during operation. • A config switch array permits flexible configuration of the Burner control.

The main parts of the control unit are: (see block diagram on page 44) • Dual-channel microprocessor units for control of times, program sequences

and flame monitor function. • Failsafe data exchange between the processors and comparison of

independently imported data. • An output circuit which operates the connected functional elements such as

blower, igniter, fuel valve and alarm signal generator. • An () optocoupler-based input circuit for failsafe import of process

statuses. • LEDs to indicate the program sequence. • A switch array comprising 8 config switches for configuration of the burner

control

The Burner control governs the following functions: • Pre-purging • Gas and oil burner start/gas and oil-fired igniter start • Safety monitoring of the gas and oil burner/gas and oil-fired igniter


44 D−GF 75

The structure of the Burner controlen is depicted in the following block diagram.

Figure 4.4 Block diagram

The inputs and outputs are explained in section "8.6 Description of terminals" on page 85 with the relevant symbols and abbreviations.


D−GF 75 45

4.8 Applications The Burner control is a type-approved safety device for the control and monitoring of gas and oil burners / gas and oil-fired igniters in installations such as:

• Refineries and other petrochemical plants • Iron foundry industry, chemical industry etc. • Waste incineration plants and soot factories • Industrial gas and fuel oil-fired furnaces, mixed-fuel furnaces • Converter installations, asphalt mixing plants • Cement manufacturing plants • Large-scale power plants • District heating power plants • Chemical process and thermal exhaust gas incineration plants • Industrial furnaces • Other industrial thermoprocessing plants n (see also chapter 2.7 Designated use starting on page 23)

The Burner control is suitable for controlling and monitoring gas and oil burners / gas and oil-fired igniters of any capacity using different combustion methods in single or multiple burner installations. The program sequence for pre-purging and ignition may be adjusted flexibly to the requirements of the system taking into consideration the relevant valid regulations.

The failsafe operating Burner control is designed in accordance with standards EN 230 (oil) and EN 298 (gas) for intermittent (D−GF 75-10) and continuous (D−GF 75-20) operation.

The parameters specified in the "Technical Data" starting on page 81 must be noted and adhered to.

The device is intended solely for the purpose described above. Any other use is deemed not to be in compliance with the device's intended purpose. The manufacturer is not liable for any resulting damage. Any risk is borne solely by the owner.


05 5 Layout and function

5.1 Functional description of the system components 5.2 Program sequence flow chart 5.3 Program sequence descriptions 5.4 Program sequence table 5.5 Program sequence line charts 5.6 Opening the housing cover for configuration 5.7 Assignment of config switches 5.8 Startup safety times 5.9 Monitor and safety chain 5.10 Setting the pre-purge time 5.11 Flame monitor 5.12 Using an external flame monitor

5. Layout and function

D−GF 75 49

5 Layout and function

This chapter describes the units which make up the Burner control system and how these units work together. The operational characteristics are explained and alternatives outlined using the different flame monitors.

5.1 Functional description of the system components The Burner control is used to control gas and oil burners and oil-fired igniters of any capacity, and monitors the flame signal via the external flame monitor. The signals from the monitor and safety contacts are also evaluated, e.g. for gas pressure, temperature and so on. All the signals of the system are linked in the safety chain. In the event of a fault, these trigger an immediate error shutoff and internal lockout. Signals corresponding to a controlled ON/OFF switching of the system (without error lockout) are forwarded to the Burner control via the monitor chain. Both inputs are designed to ensure system safety and are suitable for safety shutoff operations in accordance with the valid regulations.

Fuel types, combustion techniques and burner / igniter types occurring in practice require different functional sequences and safety times, which are electronically controlled and monitored by the Burner control.

Ensuring observance of the relevant valid regulations, the program sequence can be selected in accordance with the relevant operating conditions of the combustion system.

Both program sequences can be operated with or without re-cycling after a flame failure in the operational state.

Program sequences • Fuel gas/oil (with pre-purging) • Fuel gas/oil (without pre-purging)


50 D−GF 75

5.2 Program sequence flow chart

Figure 5.1 Program sequence-flow chart

Legend Figure 5.1

Ps Program step

Reset Start of the Burner controle after release from the error state via terminal 5 (external reset) or the reset button in the front panel (internal reset).

Block 10 Startup position Ps10 Air pressure OFF signal (t=∞) Ps11 Stand by (t=∞) Ps12 Air pressure build-up (max 30s)

Block 20 Pre-purging Ps20 Pre-purging (VLZ=0,30,60,120s)

Block 30 Burner / Igniter start Ps30 Ignition delay / ambient light test (3s) Ps31 Pre-ignition (1s) Ps32 Ignition V1 (SZ=2.5/4.5/9.5/14.5s) Ps33 First safety time (0.5s) Ps34 Valve 2 delay (2s)

Block 40 Operational state Ps40 Operation/output increase (V1+V2) (t=∞)

Block 50 Shutoff Ps50 Shutoff V1+V2=0 (5s) Ps51 Flame off signal (max. 30s)

Error loop (t=∞)

Shu

toff

whe

n W

KT=

0 or

flam

e bl

ow-o

ff if

WKT

=1 a

nd W

DA

=1 (r

e-cy

clin

g)

Restart/Initialization

Reset

Entry point after shutoff


D−GF 75 51

5.3 Program sequence descriptions The following start conditions must be fulfilled for startup of the burner/igniter:

• The Burner control must be in the "Standby" program step. • The startup signal WKT=1 must have been given. The program sequence with pre-purging is generally the normal operating mode. In this case, the Burner control governs pre-purging of the combustion chamber, switching and monitoring of the burner/igniter and switching off of the burner/igniter in a defined sequence of switching commands.

Program sequence line charts, see chapter 5.5 starting on page 53; For abbreviations, see Table 5.2 on page 54; 0 means: the input is open or set to mains zero; 1 means: the input is closed or set to mains phase.

Pre-purging (Program block 20) The blower motor is switched on in Ps12 and during the following pressure build-up period of max. 30 seconds, the build-up of air pressure is continuously monitored (signal by closing of the air pressure monitor). Over the entire pre-purge time of between 30 seconds and 2 minutes, an ambient light test is performed. If a flame signal occurs at any time via the internal flame monitor OR the external signal contact at terminal 13, a safety lockout is initiated.

Ignition of the burner/igniter (Program block 30) The ignition phase starts with the ignition delay / ambient light test in Ps30. In Ps31=pre-ignition time, the ignition transformer is switched on. In Ps32, valve 1 (V1) is actuated.

During Ps34, a flame must be signalled.

Operational state and output increase (Program block 40) In Ps40, valve 2 (V2) is additionally triggered. V1+V2 are then active. If no output increase is required, achievement of the operational state can be signalled via V2 to a higher-level control system.

Shutoff program (Program block 50) If a controlled shutoff is initiated by the monitor chain during the ignition process or while in the operational state, all active fuel valves are switched off immediately. This is followed by the program step Flame OFF signal time (Ps51). With the air pressure OFF signal (time unlimited), the control unit returns to the startup position "Standby".

Ambient light tests (Program step 20 and 30) During the program steps "Pre-purging" (Ps20) and "Ignition delay time" (Ps30) an ambient light test is performed. If the internal OR external flame monitor reports a flame ON signal within these program steps, an error shutoff will be triggered immediately.


52 D−GF 75

Operation with pre-purging The Burner control performs a pre-purging process if a pre-purging time of VLZ > 0 has been selected at the config switches.

Operation without pre-purging The Burner control performs no pre-purging process if a pre-purging time of VLZ = 0 has been selected at the config switches.

Operation without air pressure test The Burner control does not wait for the air pressure monitor in the program step "Air pressure build-up" (Ps12). If a controlled shutoff takes place in the operational state (monitor chain opens), the Burner control carries out program block 50 and returns even when air pressure is present to program step Ps11=Stand by. Consequently the Burner control does not wait for the "air pressure OFF signal" in Ps10.

5.4 Program sequence table Legend Table 3.1 and Table 5.1:

Meaning of LED signals LEDs

yello

w

yello

w

yello

w

yello

w

yello

w

gree

n

red

Abbreviations: STB Standby GEB Blower ZTR Ignition transformer

V1 Valve 1 V2 Valve 2 FLA Flame STO Fault

STB

GE

B

ZTR

V1

V2

FLA

STO


LED for flame ON display

LED for fault

in error mode: Display of error number

in error mode: Display of program step

LED on LED off LED flashing

Example: Program step 12, air press. build-up

Additional symbols / abbreviations in the program sequence Table 5.1

Program step change in the same sequence as the table.

Only in Ps11 is a step back possible after Ps10 (air pressure OFF signal).

SZ First safety time = max. ignition valve opening time without flame Adjustable = 3s, 5s, 10s, 15s

LDR Air pressure


D−GF 75 53

Program step

Designation Remark Run time Yellow LEDs

Green LED

1 2

STB

G

EB

ZT

R

V1

V2

Startup position

Ps10 Air pressure OFF signal

Air pressure must be 0 unlimited

Ps11 Standby unlimited

Ps12 Air pressure build up Air pressure must signal 1

max. 30s

Pre-purging

Ps20 Pre-purging Ambient light test max. 2min

Burner / igniter start

Ps30 Ignition delay Ambient light test 3s

Ps31 Pre-ignition Ignition transformer ZTR starts

1s

Ps32 Ignition V1 Overlap ZTR + V1 SZ –0,5s

Ps33 First safety time V1 - Flame 0,5s

Ps34 Delay V2 Flame stabilized 2s

Operational state

Ps40 Output increase V1 + V2 unlimited

Shutoff

Ps50 Shutoff Residual fuel burnt 5s

Ps51 Flame OFF signal Flame OFF signal required

max. 30s

Table 5.1 Program sequence-table (for symbols/abbreviations see legend in Table 3.1 on page 33)


54 D−GF 75

5.5 Program sequence line charts With due observance of the relevant standards EN 230 and EN 298, the program sequence can be selected in accordance with the operating conditions of the combustion system.

Program sequences: • Fuel gas/oil (with pre-purging) • Fuel gas/oil (without pre-purging)

Symbols in the line charts

Symbol Input / output Terminal Abbreviation Actuator / signal

Input

Input 14 WKT Monitor chain for START / STOP

Input 15 LDR Air pressure

Input 11 and 13 FLA Flame (OR operation from int. and

ext. flame, FLI and FLX)

Output

Output 24 ZTR Ignition transformer

Output 22 V1 Valve 1

Output 23 V2 Valve 2

Output 35 GEB Blower

Table 5.2 Symbols in line charts

Line depiction in the area of the inputs and outputs Inputs Outputs

A black line indicates that this input has to be activated

A black line indicates that this output is activated

A grey line indicates that this input has to be deactivated

A grey line indicates that this output is deactivated

A shaded line indicates that this input has no effect in the program step

A shaded line indicates that this output is activated in the program step or can be deactivated

Table 5.3 Line depiction in the area of the inputs and outputs

Pair

V1

V2


D−GF 75 55

5.5.1 Line chart: Operation with pre-purging and air pressure test (Legend on page 54 - Table 5.2)

Figure 5.2 Line chart: Operation with pre-purging and air pressure test

Remarks on the line chart: Operation with pre-purging and air pressure test During operation with pre-purging, program block 20 (pre-purging) is executed. Activation of pre-purging with air pressure test is performed by selecting a pre-purge time > 0 seconds and air pressure test LDP=1 using the config switches.

The burner / igniter is started by the monitor signal WKT=1.

When the operational state is reached, this is signalled via output V2.

If a controlled shutoff takes place (opening of the monitor chain), the Burner control executes program block 50 and waits in Ps10 for the air pressure OFF signal.

In Ps11 the burner/igniter startup begins with closure of the monitor chain, input WKT.

The air pressure input LDR=1 causes a change from "Standby" in Ps11 to "air pressure OFF signal" in Ps10 if the air pressure monitor is active. This is used to check the air pressure sensor.

The air pressure input LDR=1 causes the program to leave Ps12 (air pressure build-up).

In the operational state, re-cycling after a flame failure is possible. For this, the relevant config switch must be activated. Otherwise, an error lockout occurs.

Reset: Start of the Burner control after release from the error state via terminal 5 (external reset) or the reset button in the front panel (internal reset).


56 D−GF 75

5.5.2 Line chart: Operation with pre-purging without air pressure test (Legend on page 54 - Table 5.2)

Figure 5.3 Line chart: Operation with pre-purging without air pressure test

Remarks on the line chart: Operation with pre-purging without air pressure test When operating with pre-purging without air pressure test, program block 20 (pre-purging) is executed without waiting for the air pressure sensor LDR=1. Activation of pre-purging with deactivated air pressure test is performed by selecting a pre-purge time > 0 seconds and air pressure test LDP=0 using the config switches.



If a controlled shutoff takes place (monitor chain opens), the Burner control executes program block 50 and returns even when air pressure is present to program step Ps11= "Standby". Consequently the Burner control does not wait for the "air pressure OFF signal" in Ps10.





D−GF 75 57

5.5.3 Line chart: Operation without pre-purging with air pressure test (Legend on page 54 - Table 5.2)

Figure 5.4 Line chart: Operation without pre-purging with air pressure test

Remarks on the line chart: Operation without pre-purging with air pressure test The Burner control performs no pre-purging process if a pre-purging time of VLZ = 0 and air pressure test LDP=1 has been selected at the config switches.



If a controlled shutoff takes place (opening of the monitor chain), the Burner control executes program block 50 and waits in Ps10 for the air pressure OFF signal.

In Ps11 (Standby) the burner/igniter startup begins with closure of the monitor chain, input WKT.

The air pressure input LDR=1 causes a change from "Standby" in Ps11 to "air pressure OFF signal" in Ps10 if the air pressure test is active. This is used to check the air pressure sensor.

The air pressure input LDR=1 causes the program to leave Ps12 (air pressure build-up).




58 D−GF 75

5.5.4 Line chart: Operation without pre-purging and without air pressure test (Legend on page 54 - Table 5.2)

Figure 5.5 Line chart: Operation without pre-purging and without air pressure test

Remarks on the line chart: Operation without pre-purging and without air pressure test The Burner control does not carry out pre-purging (program block 20 is skipped) if pre-purging time = 0 and air pressure test LDP = 0 are selected at the config switches.



If a controlled shutoff takes place (monitor chain opens), the Burner control executes program block 50 and returns even when air pressure is present to program step Ps11= "Standby". Consequently the Burner control does not wait for the "air pressure OFF signal" in Ps10.



Reset: tart of the Burner control after release from the error state via terminal 5 (external reset) or the reset button in the front panel (internal reset).


D−GF 75 59

5.6 Opening the housing cover for configuration

DANGER! Danger of fatalities due to electrical current! There is a risk of fatal injury if live components are touched. Disconnect the Burner control from the mains supply! Plugs must not be pulled out or inserted when the device is live.

Legend

1 Housing cover 3 Recess (4x)

2 Side element Figure 5.6 Opening the housing cover

1. Disconnect the Burner control from the mains supply! 2. Push a screwdriver into the side recess (3) between the housing cover (1) and

the side element (2). 3. Turn the screwdriver about its longitudinal axis or press downwards. 4. Remove the housing cover (1). 5. After configuring, carefully replace the housing cover (1) and lock it fully into

place.


60 D−GF 75

5.7 Assignment of config switches

Figure 5.7 Config switch assignment

Abbreviation Config

switches Function

SZ 1

First safety time valve 1: 3, 5, 10, 15s 2

FFRT 3

Flame failure response time: 1, 2, 3, 5s 4

VLZ 5

Pre-purge time: 0, 30, 60, 120s 6

LDP 7 Air pressure test

WDA 8 Re-cycling after flame failure Table 5.4 Assignment/function of config switches

Further information about SZ, FFRT can be found in the section "Startup safety times".

Further information about VLZ can be found starting on page 63 in the section "Setting the pre-purge time".

The config switches allow different safety-relevant functions and parameters to be set. The config switches are accessible after removal of the housing cover.


D−GF 75 61

DANGER! Hazard due to electrical equipment Before removing the housing or touch guard, disconnect the Burner control from the electrical supply and safeguard against unauthorized reconnection.

Changing the configuration:

A change to the config switch array can only be performed by authorized personnel. A config switch must be set clearly to "OFF" or "ON". An open config switch will result in a fault. When the device is delivered (unless otherwise specified when ordering), all config switches are set to "OFF". The two config switches S401 (visible) and S400 (under the housing cover) must be set identically (see Figure 5.7). Changing the switches during operation is not permitted and will always lead to a fault! A permanent change to the safety times (SZ) should be logged, including the new values. Replacement or substitute devices must be configured with identical values. The current safety times set permanently on the D−GF 75 must be stated on the rating plate (SZ/ST:).

Figure 5.8 Position of config switches

Figure 5.9 Config switches: Setting of the first safety time

on12

34

56

78

S400 / S401


62 D−GF 75

Figure 5.10 Config switches: Setting of the flame failure response time

Figure 5.11 Config switches: Setting of the pre-purge time

Figure 5.12 Config switches: Setting of the air pressure test and re-cycling

5.8 Startup safety times Defined safety times for burner/igniter start and flame failure response times (FFRT) for operation:

Burner/igniter start = 3, 5, 10, 15s Operation = 1, 2, 3, 5s

Table 5.5 First safety time and FFRT for operation In case of changes to the configuration settings, be sure to observe the remarks “Changing the configuration” on page 61!

The max. safety time is defined in the standards of relevance for the overall system, e.g. EN 676 or EN 746, depending on the startup heating output of the burner/igniter. The first safety time is 3 or 5 s in most cases.

on12

34

56

78

S400 / S401on12

34

56

78

S400 / S401on12

34

56

78

S400 / S401


D−GF 75 63

When defining the admissible maximum safety time, the safety-related stipulations in the standard must be observed.

5.9 Monitor and safety chain A controlled shutoff is a process which is initiated by existing controllers, monitors or time switches. The control unit is switched by its shutoff program to the startup position “Standby". This shutoff process is carried out upon disconnection from the power supply at the Burner control input monitor chain "WKT" by opening of the contact chain. Closure of the monitor chain initiates a restart of the burner/igniter.

Error shutoff switching is a process which can be initiated by the system as a result of opening a safety chain (pressure, temperature, water level, etc.). From Ps31, opening the safety chain results in interruption of the current program sequence and initiates an error lockout and immediate closure of all valves.

Figure 5.13 Example of a failsafe safety chain

Opening of the safety chain The response time of the safety chain is 300ms. After this time has expired, an open safety chain from Ps31 triggers an error shutoff. Up to Ps31 no error shutoff occurs if the safety chain opens.

The safety chain connects terminals 7 and 8 (see Figure 3.1 on page 31 and chapter 10 Dimensional drawings, wiring diagrams starting on page 95).

5.10 Setting the pre-purge time The preselectable time range for pre-purging at the control unit is between 30 and 120 seconds. The time can be set using the config switch.

In case of changes to the configuration settings, be sure to observe the remarks “Changing the configuration” on page 61!


64 D−GF 75

Figure 5.14 Config switches: Setting of the pre-purge times

5.11 Flame monitor The Burner control can evaluate the signal of any optional external flame monitor via the FLX input at terminal 13, and also process an ionization signal at the FLI input at terminal 11. This is possible thanks to a failsafe flame monitor integrated into the Burner control. The switching threshold of the „Flame ON“ signal is approx. ≥ 1 μA.

For terminal assignment see Figure 3.1 on page 31 and chapter 10 Dimensional drawings, wiring diagrams starting on page 95.

5.12 Using an external flame monitor It is possible to connect an external flame monitor in parallel (OR operation) with the internal flame monitor of the Burner control.

The safety time (flame failure response time FFRT) of the internal and external flame monitor function can be selected between 1, 2, 3, and 5 seconds.

External flame monitor For continuous operation of the Burner control, an external flame monitor connected to terminal 13 must be approved for continuous operation. The flame failure response time of the external flame monitor may be no more than 1s. Durag or Hegwein can provide a suitable flame monitor. These can be procured through our sales partners.

on12

34

56

78

S400 / S401


06 6 Configuration, installation, commissioning

6.1 Safety 6.2 Preparation for installation 6.3 Installation 6.4 Commissioning 6.5 Dismantling and disposal of the D−GF 75

6. Configuration, installation, commissioning

D−GF 75 67

6 Configuration, installation, commissioning

In this chapter, we set out the conditions for utilization of the Burner control. We explain points to be noted in particular when mounting and connecting the device.

6.1 Safety

WARNING! Risk of electric shock After removing the housing / touch guard, live components are exposed. Before working on the device, the mains power leads must therefore be disconnected from the power and protected against unauthorised reconnection. If the guards have been removed, they must be replaced before switching on the mains power. Only the manufacturer may carry out work on this device. Burner controls are devices subject to type approval. Any intervention or modifications will render the approval null and void.



CAUTION! Damage to electronic components due to electrostatic discharge (ESD) Electronic components are becoming increasingly small and complex. Their susceptibility to damage from electrostatic discharge is increased accordingly. To protect these components, measures must be undertaken to prevent electrostatic discharge for all work performed on the open device (ESD protection). To prevent static discharge from the human , for instance, with a personal earthing system.

See also “Personnel” on page 24.

The technical documentation required for commissioning is provided on the following pages. The technical data is provided in the Annex (starting on page 81), and wiring diagrams and special circuit diagrams in section 10 starting on page 95.


68 D−GF 75

6.2 Preparation for installation

6.2.1 System installation sequence: 1. Check the prerequisites for use (see 6.2.3 starting on page 68). 2. Plan the installation locations.

Is the planned installation location safe for service personnel? Is there sufficient space available to perform maintenance work on the components?

3. Mount and align the burner/igniter (observe the installation instructions for the burner/igniter).

4. Lay the connecting cable. When selecting the cable, where applicable observe the permitted ambient temperatures.

5. Assemble and connect the Burner control. 6. Carry out electrical connection of the components. 7. Carry out necessary settings on the Burner control. 8. Commission the Burner control.

6.2.2 Transport The Burner control is an electronic control and regulation device. As with all electronic devices it must be handled with the necessary care. No additional protective measures are required for transport. Other than the built-in electronics, it does not contain any particularly sensitive components. However, it is advisable to avoid major knocks and also moisture.

6.2.3 Prerequisites for use Certain preconditions must be checked in order to use the Burner control. Based on the following checklist the suitability of the device can be quickly and easily determined.

Are the preconditions for operation of the Burner control satisfied? Is the Burner control suitable for the fuel used and the required output of the burner/igniter?

The Burner control can monitor and control gas and oil burners / gas and oil igniters with any capacity.

□

Is the Burner control required to be located in potentially explosive atmospheres or in explosive gas mixtures?

The Burner control is suitable for this type of environment only after the relevant project engineering process.

□

Is the Burner control intended for operation in the open air or in wet rooms?

Information on the required protection rating, the admissible ambient temperature and humidity is provided in chapter 8, Technical data on page 83.

□

Is the necessary voltage available? For connection data, see chapter 8, Technical data on page 83.

□


D−GF 75 69

Is the planned installation location safe for service personnel?

The working platform should be appr. 1.5 m below the mounting location. All parts of the system must be reachable safely without any risk of accidents. The valid country-specific regulations on accident prevention must be observed.

□

Is there sufficient space available to perform maintenance work on the components?

When opening the Burner control and system components it may be necessary to remove the cover. Sufficient space must be provided to allow the housings to be pulled downwards.

□

Table 6.1 Checklist of operating conditions

6.3 Installation The Burner control must be installed in accordance with the dimensional diagrams. It can be installed in any position.

Electrical installation is performed in accordance with customary regulations in the country of installation (e.g. VDE regulations) and with the wiring diagram.

In the installed condition, protection rating IP 40 (for open air installations: IP 54) must be ensured as a minimum requirement by means of suitable installation measures.

To guarantee optimum and selective flame monitoring, it is also necessary to define the correct sensor position, as the flame must be detected by the ionization electrode in all load ranges of the burner/igniter.

To avoid interference with the ionization flame monitor, the following points must be observed for the ionization electrode at input FLI (terminal 11):

• Use only the special signal cable (screened cable) (part no. 113267). • The screening must not touch earth. • Only connect the screening to terminal 12 of the flame monitor. • Fit an insulation sleeve on the wire ends in the connection chamber housing

of the burner/igniter. If major distortions are to be expected in the mains supply (e.g. blower motors on frequency inverters), the use of mains filters or mains stabilizers upstream from the burner control can improve the availability of the system.

WARNING! Hazard due to electrical equipment Before removing the housing or touch guard, disconnect the devices from the electrical supply and safeguard against unauthorized reconnection. When connecting the device, adhere to the relevant VDE regulations and any supplementary rules imposed by the local energy utility company.

Once the burners/igniters and control units are mounted and wired in accordance with the wiring diagram, the Burner control is ready for operation immediately once the supply voltage is switched on.


70 D−GF 75

6.3.1 Electrical installation During electrical installation, note the following:

• The local mains voltage and frequency must be compared to the data on the rating plate. For details, see the supply voltages specified in Chapter 8.2.Supply voltages

• Carry out electrical connection in accordance with the relevant wiring diagram in chapter 10 starting on page 95.

For all devices controlled by the Burner control (valves, external flame monitors, air dampers, sensors etc.) always ensure that the same phase is used (e.g. L1). The device checks the voltage zero crossover of all incoming phases for safety reasons. If these are not synchronous, after 3 seconds an error shutoff is initiated. See also error no. 44 in Table 8.2 Error messages and remarks.

6.3.2 Error messages Error messages are indicated on the Burner control by flashing LEDs.

Information on faults and error messages can be found in chapter 7.3 starting on page 79. A list of error messages is provided in chapter 8.7 starting on page 89.


D−GF 75 71

6.4 Commissioning

Are the prerequisites for commissioning satisfied? Is the system suitable for the application in terms of its components? see chapter 4.6 System components 41 ff.

□ Has the wiring work as illustrated in the circuit diagrams in chapter 10, and described in Table 8.1 been carried out?

□ Have the settings of the switches and the parameters described in chapter 5 been carried out? □

Table 6.2 Checklist of commissioning conditions


Danger of blinding Never look into the opened sighting tube without eye protection. The radiation from the flames or emerging hot gases can cause lasting eye damage or blindness. Before performing this task, always put on suitable protective clothing"Gas hazard", do not delete


WARNING! Never install the flame monitor without an active purge air supply at the sighting tube. The flame monitor or where applicable the burner/igniter can be irreparably damaged as a result of overheating and dust.


After installing the burner/igniter and Burner control and carrying out the relevant settings (see chapter 5 starting on page 49) the D−GF 75 is ready for operation immediately after switching on the supply voltage.


72 D−GF 75

In case of changes to the configuration settings, be sure to observe the remarks “Changing the configuration“ on page 61!

Function testing is carried out permanently by the device itself (self-monitoring).

6.5 Dismantling and disposal of the D−GF 75

Dismantling: • Switch off the system and secure against inadvertently being switched back

on. • Disconnect all electrical cables from the D−GF 75. • Remove the D−GF 75 and send it for recycling.

Disposal: After the end of its service life, the Burner control must be dismantled and sent for environmentally responsible recycling.

Disposal of used electrical and electronic devices (to be applied in European Union countries and other European countries with a separate collection system for these devices)

The symbol on the product or its packaging indicates this product cannot be treated as normal household waste, but must be taken to a collection point for the recycling of electrical and electronic devices.

Your contribution to the correct disposal of this product protects the environment and the health of other people. Irresponsible disposal places the environment and our health at risk. Material recycling helps to reduce the consumption of raw materials. Current information on the recycling of this product can be obtained from your local authority and municipal waste management agency.


07 7 Maintenance

7.1 Customer service information 7.2 Maintenance operations 7.3 Faults

7. Maintenance

D−GF 75 75

7 Maintenance

The D−GF 75 is an easy-maintenance Burner control system. This chapter describes the necessary work such as visual inspections, troubleshooting etc.

The Burner control works practically without the need for maintenance. In order to ensure the availability of the Burner control, visual inspections of the Burner control and the wiring can be performed (terminals screwed tight, condensation on the device etc.). Where there are special environmental influences such as strong vibrations or high humidity, suitable intervals must be set for these tests, or for observing a burner/igniter startup where applicable with a check of the relevant times and switching processes.

For more detailed information and safety instructions, see the relevant DURAG or Hegwein operating manuals. Safety

WARNING! Risk of electric shock After removing the housing / touch guard, live components are exposed. Before working on the device, the mains power leads must therefore be disconnected from the power and protected against unauthorised reconnection. If the guards have been removed, they must be replaced before switching on the mains power. Only the manufacturer may carry out work on this device. Burner controls are devices subject to type approval. Any intervention or modifications will render the approval null and void.



7. Maintenance

76 D−GF 75


7.1 Customer service information If desired the maintenance can also be undertaken by DURAG GmbH. We will gladly explain the advantages of a maintenance contract for your company to you. DURAG / Hegwein can also perform commissioning of the Burner control. You will find our service addresses and telephone numbers in the appendix on page 105.

7.2 Maintenance operations The D−GF 75 is a practically maintenance-free Burner control.

Recommended, every 4 weeks:

Visual inspection and cleaning of external parts

Check that all terminals and fastenings are firmly secured

Carry out visual inspection, clean the ionization electrode if necessary

Because the Burner control performs continuous self checks, no further maintenance measures are required.

7.2.1 Visual inspection and cleaning of external parts In line with the maintenance intervals set by the operator, the Burner control is subjected to a regular visual inspection. During this process, attention is paid to external changes such as discoloration on the housing etc. The firm fit of screw connections, seals and devices is also checked.

Before tightening cable terminals, make sure the device is not live!

7. Maintenance

D−GF 75 77

Visible deposits can be removed with oil-free compressed air or a soft lint-free cloth, moistened with water and/or alcohol if necessary, after first making sure the parts are not live.

7.2.2 Cleaning the ionization electrode


Danger of blinding Never look into the opened sighting tube without eye protection. The radiation from the flames or emerging hot gases can cause lasting eye damage or blindness. Before performing this task, always put on suitable protective clothing (such as face mask and goggles). "Gas hazard", do not delete

To avoid interference with the ionization flame monitor, the following points must be observed for the ionization electrode at input FLI (terminal 11):

• Use only the special signal cable (screened cable) (part no. 113267). • The screening must not touch earth. • Only connect the screening to terminal 12 of the flame monitor. • Fit an insulation sleeve on the wire ends in the connection chamber housing

of the burner/igniter. If major distortions are to be expected in the mains supply (e.g. blower motors on frequency inverters), the use of mains filters or mains stabilizers upstream from the burner control can improve the availability of the system.

7. Maintenance

78 D−GF 75

7.2.3 Exchanging the Burner control

The Burner control can be exchanged without the connecting wires having to be detached from the plug-in terminal blocks (plugs).

DANGER! Danger of fatalities due to electrical current! There is a risk of fatal injury if live components are touched. Disconnect the Burner control from the mains supply! Plugs must not be pulled out or inserted when the device is live.

Legend

1 Housing cover 5 Recess

2 Side element 6 Snap fastener

3 Housing (complete) 7 Top hat rail

4 Plug Figure 7.1 Exchanging the Burner control

1. Disconnect the Burner control from the mains supply! 2. Push a screw driver into the recess at the front (5) between the housing

cover (1) or side element (2) and plug (4). 3. Turn the screwdriver about its longitudinal axis or press downwards. 4. Detach the 8 plugs (4). 5. Push back the snap fastener (6) on the top hat rail (7) using the

screwdriver. 6. Remove the housing (3) from the top hat rail. 7. If applicable, configure the config switches of the new Burner control. In

case of changes to the configuration settings, be sure to observe the remarks „Changing the configuration“ on page 61!

7. Maintenance

D−GF 75 79

8. Mount the new Burner control on the top hat rail. 9. Push the plugs (4) over the contacts in the direction shown by the arrows

(Figure 7.2).

Figure 7.2 Fitting the plugs

7.3 Faults In the event of a fault, a "non-changeable error shutoff" is triggered. Both microprocessors quit the normal operation program loop and lock into an error program loop for all safety-relevant outputs (relay for fuel valves, error message relay, etc.). The cause of the error is checked and an error number determined. The LEDs signal this error number and the program step in which the fault occurred.

Resumption of operation is only possible after unlocking (reset). This unlocking process can be carried out manually using the button on the front plate of the Burner control. A reset button positioned remotely or similar device connected to terminal 5 (external reset) is also possible.

WARNING! The external reset button must be positioned in such a way that combustion can be seen from the place of actuation. A reset may only be performed if: • The cause of the fault has been eliminated and • There is no danger of injury or material damage as a result of

combustion re-cycling.

7. Maintenance

80 D−GF 75

7.3.1 Information relating to error messages The Burner control signals an error number in case of an error, and also the program step in which the error occurred. The message is indicated by LEDs. The error number and program step can be determined by flashing LEDs.

LED1 (very top, yellow) signals the tens digit and LED2 (2nd from the top, yellow) signals the unit digit of the signalled number.

The red LED lights up continuously while the flashing yellow LEDs display the error number.

The green LED also lights up when the flashing yellow LEDs display the program step in which the error has occurred.

Example of an error message via LED:

The air pressure input signals 0 (error no. 12) during pre-ignition in program step Ps31.

The red LED7 signals a fault while an error lockout is under way.

The Burner control now displays the error in the following way: Initially the error number is output. To signal this, the red LED7 lights up. In addition, the yellow LED1 flashes once and then the yellow LED2 flashes twice (error no. 12).

LEDs

1 2 3 4 5 6 7

The program step is then signalled. In order to signal this, the red LED7 lights up and at the same time the green LED6.

In addition, the yellow LED1 flashes three times and then the yellow LED2 Error no. 12

LEDs

1 2 3 4 5 6 7

Then the error no. etc. is displayed.

Displayed by No. flashes LED1 No. flashes LED2

Fehler-Nr. 12 red LED7 1

red LED7 2

Program step 31 red LED7 + green LED6 3

red LED7 + green LED6 1

A List of error messages can be found in the Annex starting on page 89.


Annex 8 Technical data

9 Device fuses

10 Dimensional drawings, wiring diagrams

11 Declaration of conformity, approval

12 Glossary

13 Index

14 DURAG GROUP company addresses

8. Technical data

Burner control D−GF 75 83

8 Technical data

8.1 General device data Permitted operating modes: Intermittent operation (D−GF 75-10) and

continuous operation (D−GF 75-20) EMC interference immunity: EN 298 section 8 (2004) and

EN 61000-6-2 (2006) EMC V radiated emissions: EN 61000-6-4 (2007) EMV-Störausstrahlung: EN 61000-6-4 (2007) Weight: approx. 1 kg Protection rating, housing (in accordance with EN 60529)

IP 40

Protection rating of plug-in terminal block (plugs) (in accordance with EN 60529):

In the installed condition, protection rating IP 40 (for open air installations: IP 54) must be ensured as a minimum requirement by means of suitable installation measures.

Permitted ambient temperature

- 20°C to + 60°C

Relative humidity ≤ 95% relative humidity Fastening on top hat rail TS35 Mechanical dimensions: approx. 90.5 x 103 x 118 (WxHxD) Length of ionization cable (screened)

Max. 150 m

8.2 Supply voltages

Mains voltage UN = 115/230VAC +10% -15%

Mains frequency fN = 50/60Hz ±5%

Power consumption 20 VA

Fuse protection See page 94

8.3 Technical data for inputs The wiring diagram illustrates the inputs and the relevant terminals. The majority of inputs are read in via optocouplers. The current consumption of these 230VAC or 115VAC inputs is approx. 2mA at 230VAC and 1mA at 115VAC.


8. Technical data

84 D−GF 75

Inputs via optocoupler Abbreviation Terminal

Air pressure LDR 15

External flame monitor FLX 13

Monitor chain WKT 14

External reset RSX 5

As the wiring diagrams (from page 95) illustrate, the safety chain input is used as a basis for the supply to the relay outputs. The current flowing to this input is consequently dependent upon the relay loads. The limit value for loading the relay K3 is 250 VAC / 2.0A at cos ϕ = 0.6.

Input Terminal Fuse protection

Safety chain 7 and 8 F2 = 2A inert* *) Safety-relevant, may only be replaced in the factory!

Input flame monitor Terminal Threshold

Ionisation FLI 11 ≥ 1 μA

8.4 Technical data for outputs The wiring diagram illustrates the outputs and the relevant terminals. The outputs for the blower, ignition transformer and the valves are supplied via L1.

The contact outputs correspond to the requirements for safety devices. These contacts are supplied in a series circuit made up of the safety chain, a contact of the dynamic shutoff circuit and a contact of the fault relay. This circuit is safeguarded by the fuse F2 = 2A inert inside the device.

Relay outputs Terminal Max. contact load **

Ignition transformer 24 250VAC, 1A, cosϕ = 0.6

Valve 1 22 250VAC, 1A, cosϕ = 0.6

Valve 2 23 250VAC, 1A, cosϕ = 0.6

Blower 35 250VAC, 1A, cosϕ = 0.6

Fault 36 250VAC, 1A, cosϕ = 0.6 **) The maximum permitted switching current of the relay outputs is 1A.

8. Technical data

D−GF 75 85

8.5 Default settings (ex works) The Burner control is supplied with the following settings:

Value Default settings

First safety time (SZ) 3s

Flame failure response time (FFRT) 1s

Pre-purge time (VLZ) 0s

Compressed air test (LDP) No

Re-cycling (WDA) No

8.6 Description of terminals

Terminal no.

Symbol / abbre-viation

Type Designation, Description

1 L1 L1 Mains terminal phase

2 L1 L1 Mains terminal phase

3 N N Mains terminal neutral

4 N N Mains terminal neutral

5

RSX

External reset input

Input external reset The reset returns the burner control from the error state to the operational state (unlocking). This input acts on the microcontroller system (MC) and the control of remanence relay K3, which saves an error state. The MCs are reset and quit the error program loop. The remanence relay K3 is switched to the operational state and so permits the fuel valves and ignition transformer to be actuated.

7/8 SKA/ SKE

Safety chain output/input

Safety chain output/input The safety chain comprises a series connection of contacts which may not be opened during operation, otherwise an error lockout occurs which can only be cancelled manually by a reset (unlocking). By opening the safety chain, the remanence relay K3 is set to the error state. The supply to the relay for actuation of the fuel valves and the ignition transformer is consequently interrupted twice. The reaction time to an opened safety chain is 300ms during operation of the burner/igniter. In "Standby" mode, no error shutoff takes place when the safety chain is opened. See also chapter 5.9 "Monitor and safety chain".

9 PE PE Mains terminal protective earth

10 PE PE Mains terminal protective earth

8. Technical data

86 D−GF 75

Terminal no.



11 FLI Interner Flammen-wächter

onization signal input The flame is monitored by the ionization electrode, which must be immersed in the flame direction. AC voltage is applied to this ionization electrode. The burning flame forms an electrically conductive connection with the burner/igniter earth and at the same time acts as a rectifier for the ionization current. This direct current signal is measured and amplified by the downstream ionization flame monitor. The signal of the ionization electrode can be led over a long distance to the Burner control see chapter 8 „Technical data“) and depends on the type of cable, amongst other things.

12 SCR Internal flame monitor

Ionization signal input / cable screen The one-sided cable screen is connected on the Burner control side. The ignition transformer is often responsible for interference. The interference intensity of the ignition spark can often be reduced without impairing the ignition capability. To this end the "spark plug" is given a cap with a built-in series resistor, as commonly found in motor vehicles. The laying of ionization electrode cables in parallel over several meters with lines that transmit switching processes or large currents may be responsible for faults of the burner/igniter or Burner control. In this case, cables should be spatially separated. Potential differences between the protective earth connection of the Burner control and the earth potential of the boiler with which the burner/igniter is in contact may be the cause of interference.

13 FLX (input)

Mains input External flame monitor input An external flame monitor can be evaluated by the Burner control. During burner/igniter operation, the external OR internal flame monitor must signal a flame. Note: Due to use of a debouncing technique, the response time of the input is 300 ms. This time must be taken into account when determining the safety time on flame failure.

14

WKT

Mains input Monitor chain input This input controls the start and stop of burner/igniter operation from "Standby" in program step Ps11 to "Operation" in Ps40.

8. Technical data

D−GF 75 87

Terminal no.



15

LDR

Mains input Air pressure input The air pressure sensor LDR checks that the blower is functional. If air pressure testing of the boiler is activated, the LDR must first signal the state 0 (mains off in program step Ps10= "Air pressure OFF signal") before the Burner control burner control signals ready to start in program step Ps11 "Standby". After closing the monitor chain WKT, the blower is started. In Ps12, the message LDR=1 is expected. By making the transition from 0 to 1, the LDR has demonstrated that it is functional. With this step, the LDR has been tested. The air pressure must now signal LDR=1 in all program steps other than program block 10, otherwise an error shutoff occurs. If the air pressure test is deactivated, no LDR test takes place in the program steps.

17

µA (+)

Ionization current output *

Use terminals only for short-term measuring purposes on site. Do not use terminals as measuring device output for remote or permanent display. On no account bridge the terminals. * Flame signal 0 - 25 µA (measuring range max. 50 µA)

18

µA (-)

Ionization current output *

Use terminals only for short-term measuring purposes on site. Do not use terminals as measuring device output for remote or permanent display. On no account bridge the terminals. * Flame signal 0 - 25 µA (measuring range max. 50 µA)

22

V1

Relay output Valve 1 output The safety-relevant relay outputs from K5 to K7 are supplied over several "shutoff routes" and the internal fuse F2. The voltage at the relay output terminal can be switched off by a contact of the remanence relay K3, the external safety chain, a contact of relay K4 and finally the contact of K6. Valve 1 is activated in program step Ps32 = Overlapping ignition transformer valve 1, and remains opened until a controlled or error shutoff.

23

V2

Relay output Valve 2 output The safety-relevant relay outputs from K5 to K7 are supplied over several "shutoff routes" and the internal fuse F2. The voltage at the relay output terminal can be switched off by a contact of the remanence relay K3, the external safety chain, a contact of relay K4 and finally the contact of K7. Valve 2 is activated in program step Ps40 = connection V2 and is used to increase the capacity. Valve 2 can also be used for forwarding the operational state signal.

Pair

µA

µA

V1

V2

8. Technical data

88 D−GF 75

Terminal no.



24 ZTR

Relay output Ignition transformer output The safety-relevant relay outputs from K5 to K7 are supplied over several "shutoff routes" and the internal fuse F2. The voltage at the relay output terminal can be switched off by a contact of the remanence relay K3, the external safety chain, a contact of relay K4 and finally the contact of K5. The ignition transformer is activated in program step Ps31 = Pre-ignition and remains active until Ps32.

35 GEB

Relay output Blower output Actuation of the blower takes place from Ps12 via the internal fuse F3 and relay K4.

36 STO

Remanence relay output

Output of remanence relay K3 for error message The remanence relay K3 is switched not by spring force but by polarity reversal. If not energized, this relay retains its position. An error is consequently stored also in case of a power failure. Readiness for operation of the Burner control with supply of the relay outputs (unlocking) is restored by an external reset via terminal 5 or the internal reset button at the Burner control.

Table 8.1 Description of terminals

8. Technical data

D−GF 75 89

8.7 List of error messages Information relating to error messages can be found starting on page 80.

Error no.

Error type

Tolerance time

Error message, explanation remedy

12 Process 0.3s • Incorrect input in program step: Air pressure • In the current program step, the input air pressure status = 0 was read.

If the air pressure test is activated, in almost all program steps air pressure is required to be present. Only in the startup position (program block 10: Ps10, Ps11 and Ps12) is the status air pressure=0 admissible.

Check contact / pressure sensor. Check wiring.

16 Process Process Flame

monitors Ext. 0.3s

Int. 1s

• Incorrect input/signal in program step: Flame. • During ambient light test in Ps20 (pre-purging) or Ps30 a flame was

detected. Or: During Ps34 and Ps40 no flame was detected.

Check ambient light influence. Check flame monitor. Check connection.

17 Process 0 • Time out in program step • The maximum admissible time in a program step (Ps) was exceeded.

The times for the relevant program steps are shown in the program step tables. In the case of this error, the conditions for moving to the next program step have not been fulfilled in time (e.g. air pressure build-up within 30s).

Check contacts/sensors. Check wiring.

21 Switching output

0.3s • Feedback K5 (ZTR) • The signal at the switching output does not correspond to the control

signal of the Burner control. Check whether the output has shorted.

Check whether the output is being externally supplied. Check whether the safety chain (SKE) is open.

22 Switching output

0.3s • Feedback K6 (V1) • The signal at the switching output does not correspond to the control



23 Switching output

0.3s • Feedback K7 (V2) • The signal at the switching output does not correspond to the control



8. Technical data

90 D−GF 75

Error no.

Error type

Tolerance time


27 Interlocking 0 • Error state K3 on startup • The Burner control has saved an error state. When switching the mains

voltage back on, the Burner control signals the stored error state. Unlock the Burner control with a reset.

28 Hardware 2s • Driver test remanence relay K3 • The circuit to actuate the remanence relay K3 is tested every 400ms. If

the test result is continuously negative for over 2 secs., K3 is switched to the error state.

The defective circuit must be tested in the factory.

29 Hardware 0.2s • Driver test relay K4 • K4 is switched before the valve outputs and the ignition transformer

output. This relay consequently has a special safety function. The circuit for actuation of the dynamically actuated relay K4 is tested every 50ms. If the test result is negative 4 times in succession, K4 is switched to the error state. .

The defective circuit must be tested in the factory.

31 Internal flame

monitor

8s • The internal flame monitor is checked every second for correct operation in the test phase, as soon as a flame signal is detected. If the test result is negative 8 times in succession, this error is output.

Check the ionization electrode. Check connection. Check the mounting flange is seated correctly. Investigate faults due to operation of large consumers at the time of the fault. Check cable-laying, if necessary lay the ionization cable separately.

36 Input hardware

8s • Config switch: Input changes continuously • Over a period of more than 8 seconds, changed switch values are read

in continuously. Move the config switch so that the contact problems are remedied

(change switch with mains power off and opened housing). Actuate reset (unlock Burner control) and check whether the error recurs It may be necessary to exchange the switch in the factory or to have the circuit checked.

37 Input hardware

8s • Config switch: Change after start • Over a period of more than 8 seconds, a switch value is read in which

does not agree with the value read in and stored after Burner control reset.

Move the config switch so that the contact problems are remedied (change switch with mains power off and opened housing). Actuate reset (unlock Burner control) and check whether the error recurs. It may be necessary to exchange the switch in the factory or to have the circuit checked.

8. Technical data

D−GF 75 91

Error no.

Error type

Tolerance time


38 Hardware 8s • Two-channel data comparison: Config switch input • Safety relevant data such as the values of the config switches or mains

power inputs are read in and compared independently by the two microcontrollers (MC). With this error, there was no data exchange and comparison between the two MCs for 500 ms..

If no error sources are found, the Burner control circuits must be checked in the factory.

Move the config switch so that the contact problems are remedied (change switch with mains power off and opened housing). Actuate reset (unlock Burner control) and check whether the error recurs. It may be necessary to exchange the switch in the factory or to have the circuit checked.

39 Internal flame

monitor

8s • The internal flame monitor is checked every second for correct operation in the test phase, as soon as a flame signal is detected. If the test result is negative 8 times in succession, this error is output.

Check the ionization electrode. Check connection. Check the mounting flange is seated correctly.

Investigate faults due to operation of large consumers at the time of the fault. Check cable-laying, if necessary lay the ionization cable separately.

41 - 46 Mains input 3s • Error in the area of the optocoupler inputs • The Burner control is equipped with alternating current inputs which are

led via optocouplers to the inputs of the microcontrollers. During the positive and negative mains half-cycle, input data are read. During zero crossover, a check is carried out of whether all optocouplers are functional.

Check wiring. Check that the input terminals are secure. Check mains voltage for extreme distortions. If the mains voltage is

satisfactory, the mains inputs and circuits of the Burner control must be checked in the factory.

51 Hardware 0.5s • Two-channel data exchange: Timeout receiving data • Safety relevant data such as the values of the config switches or mains

power inputs are read in and compared independently by the two microcontrollers (MC). With this error, there was no data exchange and comparison between the two MCs for 500 ms.

An MC or a quartz is defective. A connection has been interrupted. The Burner control must be tested and repaired in the factory.

52 - 57 Hardware 0.5s • Error in the area of the two-channel data comparison • Due to external errors or a fault in the circuit, deviations were found

during the data comparison between the two channels. Check wiring . Check that the input terminals are secure. Check the mains voltage for extreme distortions or voltage peaks,

e.g. as a result of switching processes. If no error sources are found, the Burner control circuits must be

checked in the factory.

8. Technical data

92 D−GF 75

Error no.

Error type

Tolerance time


58 Hardware 0.5s • Data bus test • Over the data bus, safety-relevant data such as the value of the config

switches or mains inputs are read in independently by the two microcontrollers (MCs) and the output values are forwarded to the relay via the data bus. The data bus is periodically checked for faults against a changing test pattern. A separate data bus is connected to each MC. The MCs carry out the test independently. With this error, no agreement existed between the test pattern and the value read back from the data bus for 500m.

Check the mains voltage for extreme distortions or voltage peaks, e.g. as a result of switching processes.

59 Hardware 0.5s • Chipselect line test • Different driver modules at the data bus are activated over the

chipselect lines. Data is forwarded to the relays or read in from the config switches etc. via these driver modules. The lines are checked periodically for errors as in the data bus test. Each MC is connected to separate chipselect lines. The MCs carry out the test independently. With this error, no agreement existed between the test pattern and the value read back from the data bus for 500m.

Check the mains voltage for extreme distortions or voltage peaks, e.g. as a result of switching processes.

61 Undefined 0 • Error: no signal from 2nd microcontroller (MC2) • The Burner control has a dual-channel construction on the input side.

Safety-relevant data is read in from 2 independent microcontroller systems (MC1+MC2) via the dual channel circuits and components such as the config switches and optocouplers. After data exchange and comparison, MC1 actuates the outputs. These include the relays and LEDs. Errors are signalled via the LEDs by MC1. Both MC1 and MC2 can recognize critical errors and immediately trigger an error shutoff, but only MC1 can signal it. If MC2 reacts first to an error, it locks out all outputs and transmits the cause of the error to MC1. MC1 registers the deactivated outputs, evaluates the output position as incorrect and also initiates an error shutoff. Before output of the error cause, MC1 checks whether MC2 has first locked out all outputs. In this case, MC1 takes over the error message from MC2 and rejects its own error cause. With this error, MC1 has recognized that MC2 has carried out an error shutoff. However, MC1 was unable to receive the error message from MC2 / MC2 was not able to send the error message.

• The error message does not indicate the error cause. Microcrontroller MC2 has clearly executed the error lockout but was not able to send the error message to MC1. This can be an indication of a defect in MC2.

By resetting the Burner control (unlock) check whether the error recurs. If the Burner control signals the error again, MC2 is defective. The Burner control must be tested and repaired in the factory.

If the Burner control works satisfactorily after the reset, then a one-off event triggered the error. Check the mains voltage for extreme distortions or voltage peaks, e.g. as a result of switching processes.

8. Technical data

D−GF 75 93

Error no.

Error type

Tolerance time


62 - 87 Hardware 0 • The internal test processes have identified faulty behaviour By resetting the Burner control (unlock) check whether the error recurs.

If the Burner control signals the error again, then an MC, a quartz or a connection is defective. The Burner control must be tested and repaired in the factory.

If the Burner control works satisfactorily after the reset, then a one-off event triggered the error. Check the mains voltage for extreme distortions or voltage peaks, e.g. as a result of switching processes.

Table 8.2 Error messages and remarks

9. Device fuses

94 D−GF 75

9 Device fuses

The device fuses are permanently soldered onto the circuit boards.

In accordance with EN 298 repairs on Burner controls which are used in the area of applicability of the EU Gas Appliances Directive must be performed not by the user but by the manufacturer (this also includes the replacement of fuses).

Fus e Circuit Value

F1 Power supply to the device/power supply unit

200mA inert (at 230VAC) 315mA inert (at 115VAC)

F2 Relay supply 2A inert

F3 Blower control 1A inert

Table 9.1 List of device fuses

Where Burner controls are used outside the area of applicability of the EU Gas Appliances Directive, we also recommend only having repairs performed by the manufacturer. The components protected by the relevant fuse are then tested using specified testing and measurement processes (using the requisite special devices and specialist expertise). This ensures that all component functions can be performed after replacement and that, for example, relay contacts are not fused together. Burner controls are used to ensure the safe operation of burner installations. The reliability of these devices is vital. Following any intervention, a particularly careful check must be made of all safety-relevant functions with final acceptance / logging by the manufacturer.

10. Dimensional drawings, wiring diagrams

D−GF 75 95

10 Dimensional drawings, wiring diagrams

Figure 10.1 Dimensional diagram


96 D−GF 75

Figure 10.2 Wiring diagram: Signalling to higher-level control system when operational state is reached


D−GF 75 97

Figure 10.3 Wiring diagram: Increase in output on reaching operational state


98 D−GF 75

Remarks relating to the complete wiring diagram For operation of the burner/igniter, the safety chain must be permanently closed. From Ps31 onwards, an opened safety chain will trigger a fault with lockout of the Burner control.

The valves are actuated via the failsafe relay outputs K6 and K7.

The Burner control is equipped with an integrated flame monitor. One external flame monitor can also be operated.

11. Declaration of conformity, approval

D−GF 75 99

11 Declaration of conformity, approval

11.1 EC Declaration of Conformity


100 D−GF 75

11.2 EC type test certificate


D−GF 75 101

12. Glossary

102 D−GF 75

12 Glossary

Optokoppler An optocoupler is an optoelectronic coupling device comprising an element which usually emits an infrared signal beam and a receiver. Both elements are accommodated in a common housing protected from the effects of ambient light. The purpose of optocouplers is to transmit an electrical signal between an input and output circuit while maintaining galvanic (electrical) isolation. Typical applications of optocouplers include: - Actuation of circuit components connected to different voltage potentials (e.g. signal transmission to and from mains circuits) -Protection of modules: If the optocoupler's LED input is thermally damaged by

overvoltage, the output component (phototransistor) and the downstream circuit remain protected - only the optocoupler has to be exchanged.

Range Range

Watchdog timer is used in cases where the system must continue to be operable after an error. For this purpose, the watchdog uses a timer which must be reset to zero each time by the application. If the application is not able to do this because of an error, the watchdog triggers a reset. The system starts again and remains operational.

13. Index

D−GF 75 103

13 Index

A Accessories, optional 39 Accidents 25 Ambient light tests 51 Applications 45 approval 99

C Checklist

Preconditions for operation 71 Preconditions for use 68

company addresses DURAG GROUP 105 Config switches 60 Customer service 14 Customer service information 76

D Declarations of conformity 99 Default settings 85 Device fuses 94 Device number 41 dimension drawing 95 Disposal 72

E Error Code 70 error messages

List of 89 Error messages 70

Information relating to 80 Explanation of symbols 12

F Failsafe safety chain 63 Faults 79 Flame monitor 64

external 64 Functional description 49 Fuses 94

H Hazard

due to gases 22 Hazards 25

due to electrical equipment 21

I Identification of the product 40 Ignition of the burner/igniter 51 Ignition safety time 62 Installation

Preparation 68 Sequence D−GF 75 68

Installation D−GF 75 69 Instructions

for environmental protection 72 Ionisation current 64, 84 Items supplied Standard system 39

L LEDs, Position of 32 Limitation of liability 13 Line chart 55, 56, 57, 58

symbols 54 Line depiction in the area of the inputs and

outputs 54

M Maintenance 75 Maintenance operations 76 Monitor 63, 85

N Note

Environmental protection 13

O Öffnen Gehäusedeckel 59 Operating voltage 41 Operational state and output increase 51

P Personnel, qualifications 24 Pre-purge time 63 Pre-purging 51

13. Index

104 D−GF 75

Program block 20 51 30 51

Program sequence Table 52

Program sequence descriptions 51 Program sequence flow chart 50 Program sequence line charts 54 Program step

21 and 31 51 50 51

Protection type 41

Q questions on products 7

R Rating plate 41 Rating plate, position of 40 Rating plates 40 Registrations 99

S safety chain 63 Safety instructions

specific 18 Safety instructions, general 19 Safety times 61, 62 Serial number 40, 41 Shutoff program 51 standard connection 31 Start conditions 51 Symbols in the line charts 54 Symbols, other 12 System components 42, 49 System description 42

T Technical data 83

Default settings 85 Descriptions of terminals 85 Device data D−GF 75, general 83 inputs 83 outputs 84 Supply voltages 83

Technical features 43 Tips, recommendations 12 Transport 37, 68

-damage 37 -inspection 37

U Use, designated 23

W Warning notices

Specific ESD 18 Warning notices, general

High risk - danger 17 Lesser risk - Caution 17 Medium risk - warning 17

Warning notices, general. Risk of equipment/environmental damage - Notice 18

Warning notices, significance. 17 Warning notices, specific

Electric power 18 Explosion 18 Hot surface 18

Warning notices, specific. General warning symbol 18

Warning notices, specific. read the operating instructions 13

Warranty 14, 39

14. DURAG GROUP company addresses

D−GF 75 105

14 DURAG GROUP company addresses

DURAG GmbH

Kollaustr. 105 22453 Hamburg Germany

Tel. +49 (0)40 55 42 18 – 0 Fax +49 (0)40 58 41 54 E-Mail: [email protected]

DVN – DURAG Vertrieb/Service Nord

DVO – DURAG Vertrieb/Service Ost

DVS – DURAG Vertrieb/Service Süd

DVW – DURAG Vertrieb/Service West

E-Mail: [email protected] E-Mail: [email protected] E-mail: [email protected] E-Mail: [email protected]

Kollaustr. 105 22453 Hamburg Tel. +49 (0)40 55 42 18 – 0 Fax +49 (0)40 58 41 54

Halsbrücker Str. 34 09599 Freiberg Tel. +49 (0)37 31 30 04 – 0 Fax +49 (0)37 31 30 04 – 22

Weidenweg 16 73087 Bad Boll Tel. +49 (0)71 64 9 12 25 – 0 Fax +49 (0)71 64 9 12 25 – 50

An der Pönt 53a 40885 Ratingen Tel. +49 (0)21 02 74 00 – 0 Fax +49 (0)21 02 74 00 – 28

DURAG UK Office DURAG France Sarl DURAG Italia S.r.l

E-Mail: [email protected] E-Mail: [email protected] E-Mail: [email protected]

Suite 17 Brookside Business Park Cold Meece, Stone ST15 0RZ Great Britain Tel. +44 (0)17 85 76 00 07 Fax +44 (0)17 85 76 00 14

49 rue Léonard de Vinci BP 70166 95691 Goussainville France Tel. +33 (0)1 30 18 11 80 Fax +33 (0)1 39 33 83 60

Via Carlo Panseri, 118 28100 Novara Italy Tel. +39 03 21 67 95 69 Fax +39 03 21 47 41 65

DURAG, Inc. Durag India Instrumentation Private Limited

E-Mail: [email protected] E-Mail: [email protected]

1355 Mendota Heights Road, Suite 200 Mendota Heights, Minnesota MN 55120 USA Tel. +1 (0)65 14 51 – 17 10 Fax +1 (0)65 14 57 – 76 84

#143/16, 4th Main Road, Industrial Town, Rajajinagar Bangalore 560 044 India Tel.: + 91 (0)80 23 14 56 26 Ext 20 Fax: + 91 (0)80 23 14 56 27

DURAG proces s & s ys tems technology gmbh

DURAG data s ys tems GmbH Hegwein GmbH Smitsvonk Holland B.V.

E-Mail: [email protected] E-Mail: [email protected] E-Mail: [email protected] E-Mail: [email protected]

Kollaustr. 105 22453 Hamburg Germany Tel. +49 (0)40 55 42 18 – 0 Fax +49 (0)40 58 41 54

Kollaustr. 105 22453 Hamburg Germany Tel. +49 (0)40 55 42 18 – 30 00 Fax +49 (0)40 55 42 18 – 30 99

Am Boschwerk 7 70469 Stuttgart Germany Tel. +49 (0)7 11 13 57 88 – 0 Fax +49 (0) 7 11 13 57 88 – 5

P.O.Box 180 · 2700AD Zoetermeer Loodstraat 57 · 2718 RV Zoetermeer The Netherlands Tel. +31 (0)79 361 35 33 Fax +31 (0)79 361 13 78

VEREWA Umwelt- und Prozessmesstechnik GmbH

E-Mail: [email protected]

Kollaustr. 105 22453 Hamburg Germany Tel. +49 (0)40 55 42 18 – 0 Fax +49 (0)40 58 41 54

GmbH · Kollaustraße 105 · 22453 Hamburg · www.durag.de

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