Honeywell EK205-M User manual

73025561
Issue date 2022-03 (a)
from software version 1.07
7
Volume Conversion Device
EK205-M
Operating
Instructions

2

3
Exclusion of liability
The information contained in this document is the property of Honeywell. The
following information may only be used for its intended purpose. This document or
its contents must not be copied, published, or made accessible to a third party in
full or in part without the express consent of Elster GmbH.
All specifications and descriptions in these operating instructions have been
compiled following careful testing. In spite of this, errors cannot be completely
ruled out. Honeywell can therefore not provide any guarantee that the content is
complete or correct. The instructions must also not be seen as a warranty of
product features. Furthermore, features are also described here which are only
available as an option.
Honeywell cannot accept liability in any case for direct, special, or consequential
damage suffered by third parties. The information and specifications in this
document may be amended without notice.
In view of extended product liability, the listed data and material properties should
only be regarded as reference values and must always be checked for each
individual case and corrected if necessary. This is especially the case when safety
aspects are affected.
Further support is available from your local branch office or agent. The address is
available on the Internet or from Honeywell.
This manual or parts of it may only be disclosed or copied with written consent
from Honeywell.
If the product described here is improperly handled, repaired, or changed by
unauthorized persons or if spare parts other than those supplied by Honeywell are
used, our warranty will be rendered void.
All rights reserved.
Copyright © 2022 Elster GmbH, D-55252 Mainz-Kastel. All rights reserved.
Mainz-Kastel, Mar 2022

4
Contents
1General.................................................................................................................................................... 9
1.1 Information in these instructions...................................................................................................... 9
1.1.1 Downloading manuals from Docuthek......................................................................................... 9
1.1.2 Device software available on the Elster-Instromet website....................................................... 10
1.2 enSuite parameterization software................................................................................................ 10
1.3 Warranty provisions....................................................................................................................... 10
1.4 Customer service and Technical Support (TAC)........................................................................... 11
1.4.1 Customer services and repairs.................................................................................................. 11
1.4.2 Technical Assistance Centre (TAC)........................................................................................... 11
1.5 Explanation of symbols.................................................................................................................. 11
1.5.1 Safety instructions...................................................................................................................... 11
1.5.2 Tips and recommendations ....................................................................................................... 12
1.6Limitation of liability........................................................................................................................ 12
1.7 Copyright........................................................................................................................................ 12
1.8 Scope of delivery ........................................................................................................................... 12
1.9 Replacement and accessory parts ................................................................................................ 13
1.10 Storage .......................................................................................................................................... 14
2Security considerations for your network ........................................................................................ 15
2.1 How to report a vulnerability.......................................................................................................... 15
2.2 Implementing stringent password guidelines................................................................................. 15
2.3 Preventing unauthorized external access using a firewall............................................................. 16
2.4 Data security for data at rest and in transit.................................................................................... 17
2.4.1 Data security for data at rest...................................................................................................... 17
2.4.2 Data security for data in transit.................................................................................................. 17
3Safety .................................................................................................................................................... 18
3.1 General.......................................................................................................................................... 18
3.2 Intended use.................................................................................................................................. 19
3.3 Specific Conditions of Use............................................................................................................. 19
3.4 Staff................................................................................................................................................ 20
3.5 Personal protective equipment...................................................................................................... 21
3.6 Special hazards ............................................................................................................................. 21
3.7 Environmental protection............................................................................................................... 22
3.8 Operator liability............................................................................................................................. 22
4Technical data...................................................................................................................................... 23
4.1 General data.................................................................................................................................. 23
4.1.1 Dimensions................................................................................................................................ 24
4.2 Power supply for EK205-M without integrated mains adapter ...................................................... 24
4.2.1 Basic device battery supply ....................................................................................................... 25
4.2.2 Modem battery supply ............................................................................................................... 25
4.2.3 External power supply for the basic device ............................................................................... 25
4.3 Pressure sensor............................................................................................................................. 25
4.3.1 CT30 Type Pressure Sensor..................................................................................................... 25

5
4.4Temperature sensor .......................................................................................................................26
4.5 Digital inputs...................................................................................................................................26
4.5.1 Pulse and reporting inputs NF....................................................................................................26
4.6 Digital outputs.................................................................................................................................27
4.7 Optical serial interface....................................................................................................................27
4.8 Electrical serial interface.................................................................................................................28
4.8.1 RS485 type.................................................................................................................................28
4.9 Supported protocols .......................................................................................................................28
4.10 Integrated Modem ..........................................................................................................................29
4.11 Antenna ..........................................................................................................................................29
4.12 Operating conditions.......................................................................................................................30
4.12.1 Environment............................................................................................................................30
4.13 Identification....................................................................................................................................30
4.13.1 Type plate and EX identification.............................................................................................30
4.13.2 Device software identification.................................................................................................31
5Construction and function...................................................................................................................32
5.1 External view ..................................................................................................................................32
5.2 Internal view....................................................................................................................................32
5.3 Brief description..............................................................................................................................33
5.4 Connections....................................................................................................................................33
5.5 Cable glands...................................................................................................................................33
6Installation, connection and commissioning ....................................................................................34
6.1 Installation.......................................................................................................................................34
6.1.1 Installation on a gas meter .........................................................................................................34
6.1.2 Installation on a pipeline.............................................................................................................34
6.1.3 Installation on a wall ...................................................................................................................35
6.1.4 Three-way cock ..........................................................................................................................35
6.2 Connection......................................................................................................................................36
6.2.1 Connecting gas meters...............................................................................................................37
6.2.2 Lead-sealing of the input terminals.............................................................................................37
6.2.3 Connect temperature sensor......................................................................................................38
6.2.4 Connect pressure line.................................................................................................................39
6.2.5 Connecting the power supply .....................................................................................................39
6.2.6 Connect outputs of the EK205-M ...............................................................................................40
6.3 Commissioning...............................................................................................................................41
6.3.1 Setting the operating parameters ...............................................................................................41
6.3.2 Sealing........................................................................................................................................47
6.3.3 Close housing.............................................................................................................................48
6.3.4 Check installation and connection..............................................................................................48
6.3.5 Data transfer...............................................................................................................................49
7Working with enSuite...........................................................................................................................50
7.1 Setting up the communication link to the EK205-M via optical interface .......................................50
7.2 Setting up the communication link to EK205-M via a modem........................................................50
7.3 Setting up the communication link to EK205-M via a network (TCP/IP)........................................50
7.4 Setting up a direct communication link to EK205-M.......................................................................51

6
7.5Updating customized parameters.................................................................................................. 51
7.6 Send parameter file ....................................................................................................................... 51
8Data transfer......................................................................................................................................... 53
8.1 Internal 2G Modem - (GSM/GPRS)............................................................................................... 53
8.1.1 Distinguishing the internal modem............................................................................................. 53
8.1.2 Inserting the SIM card................................................................................................................ 54
8.1.3 Unlocking the SIM card.............................................................................................................. 56
8.1.4GSM Operation.......................................................................................................................... 56
8.1.5 National Roaming –Preferred Network Operator...................................................................... 60
8.1.6 TCPserv operation (GPRS) ....................................................................................................... 61
8.1.7 Hiding APN access data between two "market partners".......................................................... 64
8.1.8 Installing/changing the internal modem assembly..................................................................... 64
8.1.9 Installing the antenna................................................................................................................. 68
8.1.10 Position of the antenna for gas meter mounting with Encoder.............................................. 71
8.2 Devices on the serial interface....................................................................................................... 71
8.2.1 Direct connection of the RS232 interface (e.g. COM port on a PC).......................................... 72
8.2.2 RS485 interface......................................................................................................................... 76
8.3 Data transfer verification................................................................................................................ 80
8.3.1 Time window connection ........................................................................................................... 80
8.3.2 Connection configuration status StCon ..................................................................................... 81
8.3.3 Status of remote subscriber “MDst” ........................................................................................... 82
9Operation.............................................................................................................................................. 83
9.1 Safety............................................................................................................................................. 83
9.1.1 Personal protective equipment .................................................................................................. 83
9.2 Operating staff ............................................................................................................................... 83
9.2.1 Trained individual....................................................................................................................... 83
9.2.2 Specialist.................................................................................................................................... 83
9.2.3 Calibration officer....................................................................................................................... 83
9.3 Basics ............................................................................................................................................ 84
9.3.1 Display ....................................................................................................................................... 84
9.3.2 Functions of the keys................................................................................................................. 85
9.3.3 Calling up the data, navigation in the display ............................................................................ 86
9.3.4 Meaning of the status symbols .................................................................................................. 87
9.3.5 Error messages when entering values ...................................................................................... 88
9.3.6 Access rights.............................................................................................................................. 89
9.4 Content of the data register ........................................................................................................... 91
9.4.1 Access rights.............................................................................................................................. 91
9.4.2 Main tab (main display).............................................................................................................. 91
9.4.3 Customer tab ............................................................................................................................. 92
9.4.4 Admin tab (administrator) .......................................................................................................... 94
9.4.5 Serv. tab (service)...................................................................................................................... 95
9.4.6 Strg. tab (control)....................................................................................................................... 95
10 Maintenance......................................................................................................................................... 97
10.1 Safety............................................................................................................................................. 97
10.1.1 Staff........................................................................................................................................ 98
10.1.2 Personal protective equipment.............................................................................................. 98
10.1.3 Environmental protection....................................................................................................... 98
10.2 Check and replace device batteries .............................................................................................. 99
10.2.1 Replace and connect device batteries................................................................................... 99
10.2.2 Enter battery capacity.......................................................................................................... 102
10.2.3 Display remaining operating duration of the battery............................................................ 102

7
11 Faults ...................................................................................................................................................104
11.1 Safety............................................................................................................................................104
11.1.1 Staff ......................................................................................................................................104
11.1.2 Personal protective equipment.............................................................................................104
11.1.3 Improper fault rectification ....................................................................................................105
11.1.4 Conduct in the event of faults...............................................................................................105
11.2 Fault and other status messages .................................................................................................105
12 Decommissioning...............................................................................................................................109
12.1 Final decommissioning.................................................................................................................109
12.2 Disposal........................................................................................................................................109
13 Appendix .............................................................................................................................................111
13.1 Replacement and accessory parts list..........................................................................................111
13.1.1 Fastening parts.....................................................................................................................111
13.1.2 Pressure connection.............................................................................................................111
13.1.3 Temperature sensor bags ....................................................................................................112
13.1.4 Small parts and other ...........................................................................................................112
13.1.5 Documentation......................................................................................................................112
13.2 Conformity declarations................................................................................................................113
13.3 Design test certifications...............................................................................................................119
13.3.1 ATEX - EC Type Examination Certificate.............................................................................119
13.3.2 IECEx Certificate of Conformity............................................................................................122

General 9
1 General
1.1 Information in these instructions
These instructions make it possible to work with the device in a safe and efficient manner.
Compliance with all of the safety and handling instructions specified in this operating manual is a
prerequisite to working with the device in a safe manner and to use it properly. In addition,
compliance is also necessary with the guidelines, standards, local accident prevention regulations
and general safety regulations that apply for the device's area of application.
The instructions are a component of the product and must be kept in the immediate vicinity of the
device, so that installation, operational, maintenance, and cleaning personnel may access them
at any time. The graphical illustrations in these instructions serve to depict the facts that are being
explained and are therefore not necessarily true to scale and may differ from the actual design of
the device.
1.1.1 Downloading manuals from Docuthek
Elster Gas provides user documentations such as manuals, certificates, data sheets and
technical information bulletins for various device types in Docuthek. The documents are updated
on a regular basis:
https://docuthek.kromschroeder.com
Use the device type EK205-M as your search term.
Check the PDF after downloading it.
You can use SHA-1 checksum information to check the file integrity of a PDF after
downloading it using a suitable tool.
The desired value of the SHA-1 checksum for a PDF can be found in Docuthek in
the detailed information in the section entitled “Remarks” or, if you have
downloaded the PDF from the Elster-Instromet website, in brackets next to the
download link.
The data and material properties that are presented below are guidelines. They
must be reviewed for each individual case and corrected if necessary.
For the commissioning of the various communication and device applications, you
can use the application manual of the EK205-M (see section 1.1.1).

10 General
Which manuals are relevant for earlier device software versions?
Docuthek only contains the current manual versions. If you are using an older
software version, you can find the manuals for every version in the software history
on the Elster-Instromet website. The software history is available for product
releases since 2020 in PDF format in the download area for the relevant device
type.
www.elster-instromet.com/en/volume-converter
1.1.2 Device software available on the Elster-Instromet website
The Elster-Instromet website contains the latest software releases for the Elster Gas device
series. The current versions for EK205-M and enSuite can be found in the download area:
www.elster-instromet.com/en/software-downloads
The change history provides information about new functions, improvements, bug fixes and
security problems which have been rectified. The change history is available for product releases
since 2020 in PDF format in the download area for the relevant device type.
Furthermore, the change history lists the relevant manuals for a software release.
Elster Gas newsletter
Our newsletter provides you with regular information about new software releases
and relevant manuals for the EK, DL and enCore FC device series. If you are
interested, you can register at:
https://outcomes.gasdatalab.com/techniknewsEN.html
1.2 enSuite parameterization software
The download area of the Elster-Instromet website also contains the enSuite parameterization for
Windows 64-bit (from Windows XP) required for the commissioning process:
www.elster-instromet.com/en/software-downloads
Updating enSuite
We recommend that you download the latest version of enSuite from the Elster-
Instromet website before you commission the EK205-M.
1.3 Warranty provisions
The current warranty provisions can be found in our General Terms of Business, e.g., on our
website at:
www.elster-instromet.com/en/general-terms-of-business

General 11
1.4 Customer service and Technical Support (TAC)
Our customer service department is available for technical advice as well as repairs. Furthermore,
our employees are always interested in new information and experiences that arise through use
of the device and that may be valuable for improving our products.
1.4.1 Customer services and repairs
◼Phone. [phone]
◼Fax [phone]
◼E-mail: [e-mail]
1.4.2 Technical Assistance Centre (TAC)
Our Technical Support (TAC Technical Assistance Center) is at your disposal in case of faults:
◼Phone. [phone]
◼Website: www.elster-instromet.com/en/support
◼Knowledge Base: www.honeywellprocess.com/support
◼E-mail: [e-mail]
1.5 Explanation of symbols
1.5.1 Safety instructions
Safety instructions are indicated in these instructions by symbols. The safety instructions are
introduced by keywords that express the extent of the risk.
Safety instructions must be observed and treated diligently to avoid accidents, personal injury,
and material damage.
DANGER!
…indicates an immediately hazardous situation that leads to death or severe injury
if it is not avoided.
WARNING!
…indicates an immediately hazardous situation that may lead to death or severe
injury if it is not avoided.
CAUTION!
…indicates an immediately hazardous situation that may lead to minor or slight
injury if it is not avoided.
… indicates hazards from electric current. In the event of non-observance of the
safety instructions, there is a risk of severe or fatal injuries.

12 General
CAUTION!
…indicates an immediately hazardous situation that may lead to material damage if
it is not avoided.
1.5.2 Tips and recommendations
… highlights useful tips and recommendations as well as information for ensuring
efficient and smooth operations.
1.6 Limitation of liability
All specifications and instructions in these operating instructions were compiled under
consideration of applicable standards and regulations, the current state of the art and the
knowledge and experience we gained over the years. The manufacturer assumes no liability for
loss due to:
◼Non-compliance with these operating instructions
◼Use of the device not in accordance with its intended use
◼Use of the device by non-instructed personnel
◼Unauthorized device modifications
◼Technical changes
◼Use of non-authorized replacement parts
The actual scope of delivery may differ from the explanations and descriptions included here in
case of special device designs, the use of additional order options or because of the latest
technical changes.
The obligations arranged in the delivery contract apply, as do the General Terms and Conditions,
manufacturer delivery conditions and current legal regulations that apply at the time the contract
was concluded.
Read through these operating instructions carefully before beginning any work to
and with the device, especially before commissioning the device!
The manufacturer assumes no liability for loss and malfunctions that result from
non-compliance with these instructions.
We reserve the right to make technical changes within the scope of improving performance
characteristics and continuous development of the device.
1.7 Copyright
These instructions are copyright-protected and intended for internal purposes only. Handover to
third parties, copies of any form, including extracts, as well as utilization and/or notification of the
content without written approval of the manufacturer is not permitted, except for internal
purposes. Violations give rise to compensation. Further claims remain reserved.
1.8 Scope of delivery
The scope of delivery of the EK205-M includes:
◼Electronic Volume Conversion Device EK205-M

General 13
◼Dispatch breakdown
◼Interpretation data sheet
◼Instructions
◼Accessories bag
1.9 Replacement and accessory parts
WARNING!
Incorrect replacement parts and accessories are a safety risk!
Incorrect or defective replacement parts and accessories may detract from safety
and lead to damage, malfunction, or total device failure.
Therefore:
–Use only original replacement parts and accessories from the manufacturer.
–Always contact the manufacturer if you are in doubt.
The replacement parts and accessories list can be found in the appendix. Replacement parts and
accessories can be ordered from a contract dealership or directly from our customer service.
The accessories of the EK205-M also include the free enSuite program (see section 1.1.2). With
them, you can program the Volume Conversion Device EK205-M via its data interfaces in order to
carry out further applications.
The EK205-M is available in numerous equipment variants.
Details can be found at www.elster-instromet.com as well as in section 6 “Installation, connection
and commissioning”.

14 General
1.10 Storage
CAUTION!
Reduced performance after exceeding or falling below the valid temperature
range of the batteries.
Exceeding or falling below the valid temperature range can reduce the
performance of the batteries when storing the device.
Therefore:
–For longer-term storage, ensure that the valid temperature range of the built-
in batteries between -40 °C and +60 °C is not exceeded or fallen below.
CAUTION!
Material damage from formation of condensation!
Storing the device can lead to the formation of condensation resulting from
variations in temperature. This may result in the device malfunctioning at a later
time.
Therefore:
–After the device has been stored or transported in cold weather or if it has
been subject to extreme variations in temperature, bring it slowly to room
temperature before it is commissioned.
–The device must undergo a waiting period of at least 12 hours before it is put
into operation if condensation formed during storage.
If the power supply of the device is interrupted during storage from clamping the
batteries, the time and date need to be reset.
The following regulations apply for storage:
◼Relative humidity may not exceed 93%.
◼Do not store the packaging units outdoors.
◼The storage temperature may not fall below -40°C and exceed +60°C.
◼Avoid mechanical vibrations during storage.

General 15
2 Security considerations for your network
EK series volume converters are used in modern billing infrastructures and network control
systems to supply process information such as meter readings, measurements and messages to
a billing or control centre. A connection of this type constitutes a significant security risk which
must be given careful consideration when designing the network.
2.1 How to report a vulnerability
A vulnerability is defined as an error or weakness in the software which can be exploited to
adversely affect or reduce the operation or security of the parameterization or device software.
Honeywell reviews all reports about vulnerabilities relating to Honeywell products and services.
You can find further information about the Honeywell Security Policy at:
www.honeywell.com/product-security
If you would like to report a possible vulnerability in a Honeywell product, follow the instructions
on the Honeywell website at:
www.honeywell.com/product-security
You can find information about current malware threats at:
www.honeywellprocess.com/en-US/support/Pages/security-updates.aspx
Or
Contact your local Honeywell Process Solutions Customer Contact Centre (CCC) or our Elster
Gas Technical Support team (see section 1.4.1 “Customer services and repairs”, page 11).
2.2 Implementing stringent password guidelines
Since various types of attacks on passwords take place these days, you should follow best
practices for password management. Here are a few time-tested methods:
◼Change standard passwords
◼Use secure passwords. A secure password for LIS devices consists of eight characters.
◼Change passwords on a regular basis.
◼Change passwords immediately in case someone has tried to attack the system.
◼LIS200 uses role-based authentication, please follow best practices for shared passwords
like secured distribution and secured storage.
Passwords can be changed via so-called insecure protocols without re-
authentication!
Note that when a password is changed via IEC 62056-21 and DLMS, the initial
password is not queried again. This vulnerability enables a potential attacker to
assign a new password without specifying the old password!
It is therefore even more important to protect data communication from third-party
access.

16 General
Document any changes from time-tested methods.
If your system does not allow one of these time-tested methods to be used, you
should document this. For example, if special symbols such as the equals sign “=”
are not allowed in passwords.
Un
2.3 Preventing unauthorized external access using a firewall
To reduce the risk for your network, we recommend that you use a firewall or another mechanism
to restrict network traffic between the “external” central billing or control system and the “internal”
network of the gas metering systems. Furthermore, EK devices should only be installed in the gas
metering system, where access control is guaranteed, i.e., protective action is taken to prevent
unauthorized persons gaining access to the device.
We also recommend that you only allow protocols and ports which are actually used for data
exchange with the external network and that these are added, for example, to the firewall’s
whitelist.
Refer to the information in section 2.4 Data security for data at rest and in transit.
Fig. 1: Router and firewall between the metering systems and control centre –example with
indication of security zones L0..L3 and higher according to IEC 62443

General 17
We recommend opening safety zone L0 only for zone L1 and not for zones L2, L3
and L4.
2.4 Data security for data at rest and in transit
2.4.1 Data security for data at rest
Data at rest are the data which are temporarily or permanently stored in the EK205-M. These
data are unencrypted in the EK series. This means it is even more important to protect the device
from unauthorized access.
See section 2.3 “Preventing unauthorized external access using a firewall”.
2.4.2 Data security for data in transit
Data in transit are data which are currently being transferred between the EK205-M and, for
example, a control station in a public or trustworthy network.
The protocols used with the EK205-M normally transfer the data in plain text form. If possible, you
should therefore use the secure version of a protocol (see section 4.9 “Supported protocols”,
page 28).
See section 2.3 “Preventing unauthorized external access using a firewall”.
Using an encrypted VPN connection
We recommend that you use a VPN connection whenever you require a secure
data connection, but a secure protocol is not supported for the data transfer.
In a VPN, the data are transferred between two or more subscribers in encrypted
form. Therefore, a VPN connection is extremely important, for example for mobile
access to a volume conversion device, for accessing a private network or for data
communication using different systems.

18 Safety
3 Safety
This section provides an overview of all key safety aspects for optimal protection of the staff as
well as for safe and fault-free operation.
Non-observance of these operating and safety instructions may result in considerable hazards.
3.1 General
The EK205-M is an intrinsically safe device and is suitable for operation within the zone at risk of
gas explosion 2 for gases of temperature class T4.
Check for use in zone 2 in accordance with the currently applicable rules of the art: see section
13.3:
DANGER!
Risk of explosion by connection to non-intrinsically safe and associated
equipment.
When operating the EK205-M in an area at risk of explosion (zones 2) and
connecting devices without certification as an "associated piece of equipment",
there is a risk of explosion.
Therefore:
–When used in an area at risk of explosion, connect the EK205-M to certified,
associated pieces of equipment only in accordance with the valid rules of the art
stated in the design test certificates.
–Connect the EK205-M only to intrinsically safe pieces of equipment whose
electric data correspond to the requirements stated in the design test certificates
of the EK205-M (see section 13.3).
DANGER!
Risk of explosion from use of wrong batteries.
Use only batteries stated in the design test certificates of the EK205-M (see section
13.3). Order number see section 13.1.4.
DANGER!
Risk of explosion from incorrect use or connection!
During connection and operation of the EK205-M in areas at risk of gas explosion,
observe the associated norms:
DIN EN 60079-0
The device may only be used in an area at risk of gas explosion if the installation is
carried out in accordance with the general requirements of DIN EN 60079-0 and the
operating conditions (see section Technical data) and connection conditions (see
section Installation, connection, and commissioning) are observed.
The device can be hazardous if it is used by staff not trained correctly in an improper or
unintended manner.
◼Anyone appointed to perform work to or with the device must read and understand these
operating instructions before beginning work on the device. This also applies if the

Safety 19
individuals concerned have already worked with such a device or a similar one or were
instructed by the manufacturer.
◼Knowledge of the content is one of the requirements of protecting staff from hazards and
avoiding faults and therefore operating the device in a safe and fault-free manner.
◼In order to avoid risks and to ensure that the device performs in an optimal manner, no
changes or modifications that were not expressly authorized by the manufacturer may be
performed to the device.
◼Always keep all operating instructions on the device in easily legible condition. Renew
damaged or illegible instructions.
◼Observe settings values or value ranges stated in the instructions.
3.2 Intended use
The device is designed and constructed exclusively for its intended use as described here.
The Volume Conversion Device EK205-M serves to convert a gas volume of a
gas line in basic condition measured by a meter in measurement conditions as
well as to assign the volumes measured to tariffs. In addition, using the device,
further parameters can be measured, recorded, and monitored depending on
the configuration set by the user.
Compliance with all the specifications in these operating instructions also falls under the device's
intended use. Any use of the device that goes beyond or deviates from its intended use is
considered a misuse of the device and may lead to hazardous situations. Claims of any kind due
to loss resulting from non-intended use of the device are excluded.
WARNING!
Hazard from incorrect use!
Incorrect use of the device may result in hazardous situations.
Therefore:
–Use the device only as intended.
–Do not use the device to control the gas flow or other parameters influencing the
gas volume within the framework of the overall system.
3.3 Specific Conditions of Use
◼The equipment must be only connected to a certified associated intrinsically safe
equipment. This combination must be compatible as regards the intrinsically safe rules.
◼Only temperature or pressure sensor defined in the manufacturer’s technical file can be
used.

20 Safety
3.4 Staff
WARNING!
Risk of injury in the event of insufficient qualification!
Improper use may result in considerable personal injury and material damage.
Therefore:
–Have all activities carried out by qualified staff only.
The following qualifications for different areas of activity are listed below in the instructions:
◼Instructed staff
was instructed by the plant operator in an informational session on the tasks assigned to
him or her, and on possible hazards in case of improper behaviour.
◼Specialist staff
has the ability, because of his or her technical training, knowledge, and experience, as
well as his or her knowledge of the relevant regulations, to carry out the work to the device
assigned to him or her, and to recognize and avoid possible hazards on his or her own.
◼Gas specialist
has the ability, because of his or her technical training, knowledge, and experience, as
well as his or her knowledge of the relevant standards and regulations, to carry out work to
gas systems, and to recognize possible hazards on his or her own. A gas specialist
receives training for the specific location in which he or she works and is acquainted with
the relevant standards and regulations.
◼Calibration officer
has the ability, because of his or her technical training, knowledge, and experience, as
well as his or her knowledge of the relevant standards and regulations, to carry out
calibration-protected work to gas systems. The calibration officer is trained to work with
calibration-protected devices and systems and is acquainted with the relevant standards
and regulations that apply.
◼Electrical expert
has the ability, because of his or her technical training, knowledge, and experience, as
well as his or her knowledge of the relevant standards and regulations, to carry out work to
electrical systems, and to recognize and avoid possible hazards on his or her own. A
qualified electrician receives training for the specific location in which he/she works and is
acquainted with the relevant standards and regulations.
WARNING!
Risk for unauthorized persons!
Unauthorized persons who do not fulfil the requirements described do not know the
hazards in the work area.
Therefore:
–Keep unauthorized persons away.
–In the event of doubt, speak to people and direct them out of the working area.
–Interrupt the work as long as unauthorized persons are in the working area.