KROHNE OPTISONIC 7300 Wiring diagram

Ultrasonic gas flowmeter
Addendum for hazardous areas.
These instructions are an extension to the OPTISONIC 7300 Quick Start and
Handbook.
OPTISONIC 7300 Supplementary Instructions
© KROHNE 11/2022 - 4003791404 - AD EX OPTISONIC 7300 R04

CONTENTS
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OPTISONIC 7300
1 Introduction 4
1.1 Safety instructions from the manufacturer..................................................................... 4
1.1.1 Copyright and data protection ................................................................................................ 4
1.1.2 Disclaimer............................................................................................................................... 4
1.1.3 Product liability and warranty ................................................................................................ 5
1.1.4 Information concerning the documentation........................................................................... 5
1.1.5 Warnings and symbols used................................................................................................... 6
1.2 Manufacturer.................................................................................................................... 6
1.3 Safety instructions for the operator................................................................................. 7
1.4 Electrostatic charge ......................................................................................................... 7
1.5 Special notes for safe operation ...................................................................................... 8
1.6 Approvals.......................................................................................................................... 9
1.7 OPTISONIC 7300 C/...-Ex.................................................................................................. 9
1.8 OPTISONIC 7000...-Ex..................................................................................................... 10
1.9 GFC 300 F/...-Ex.............................................................................................................. 10
1.10 Biogas versions ............................................................................................................ 11
1.11 Ultrasonic gas transducers.......................................................................................... 11
1.12 Technical data............................................................................................................... 12
1.13 Marking labels ATEX/IECEx (examples)....................................................................... 13
1.13.1 Marking labels UKCA Ex (examples) .................................................................................. 16
1.13.2 I/O sticker............................................................................................................................ 20
2 Temperature limits 21
2.1 General ........................................................................................................................... 21
2.2 GFC 300 F/...-Ex.............................................................................................................. 21
2.3 OPTISONIC 7300 C/...-Ex................................................................................................ 21
2.4 OPTISONIC 7000...-Ex..................................................................................................... 23
3 Connection of separate systems 24
3.1 General ........................................................................................................................... 24
3.2 Cable marking ................................................................................................................ 24
3.3 Equipotential bonding..................................................................................................... 24
3.3.1 Flow sensor........................................................................................................................... 24
3.3.2 Signal converter.................................................................................................................... 24
3.4 Connection of signal cable to signal converter (remote version only).......................... 25
4 Electrical connections 27
4.1 General ........................................................................................................................... 27
4.2 Cable glands ................................................................................................................... 30
4.3 Field Wiring..................................................................................................................... 30
4.4 Non-"Ex i" I/O connections............................................................................................. 31
4.5 "Ex i" I/O connections..................................................................................................... 33

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OPTISONIC 7300
5 Maintenance 35
5.1 Maintenance ................................................................................................................... 35
5.2 Before and after opening................................................................................................ 35
5.3 Replacement of mains fuse............................................................................................ 36
5.4 Exchange of electronics unit.......................................................................................... 37
5.5 Service / repair information ........................................................................................... 40
5.6 Form (for copying) to accompany a returned device ..................................................... 41
5.7 Disposal .......................................................................................................................... 41
6 Notes 42

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1.1 Safety instructions from the manufacturer
1.1.1 Copyright and data protection
The contents of this document have been created with great care. Nevertheless, we provide no
guarantee that the contents are correct, complete or up-to-date.
The contents and works in this document are subject to copyright. Contributions from third
parties are identified as such. Reproduction, processing, dissemination and any type of use
beyond what is permitted under copyright requires written authorisation from the respective
author and/or the manufacturer.
The manufacturer tries always to observe the copyrights of others, and to draw on works created
in-house or works in the public domain.
The collection of personal data (such as names, street addresses or e-mail addresses) in the
manufacturer's documents is always on a voluntary basis whenever possible. Whenever
feasible, it is always possible to make use of the offerings and services without providing any
personal data.
We draw your attention to the fact that data transmission over the Internet (e.g. when
communicating by e-mail) may involve gaps in security. It is not possible to protect such data
completely against access by third parties.
We hereby expressly prohibit the use of the contact data published as part of our duty to publish
an imprint for the purpose of sending us any advertising or informational materials that we have
not expressly requested.
1.1.2 Disclaimer
The manufacturer will not be liable for any damage of any kind by using its product, including,
but not limited to direct, indirect or incidental and consequential damages.
This disclaimer does not apply in case the manufacturer has acted on purpose or with gross
negligence. In the event any applicable law does not allow such limitations on implied warranties
or the exclusion of limitation of certain damages, you may, if such law applies to you, not be
subject to some or all of the above disclaimer, exclusions or limitations.
Any product purchased from the manufacturer is warranted in accordance with the relevant
product documentation and our Terms and Conditions of Sale.
The manufacturer reserves the right to alter the content of its documents, including this
disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable
in any way for possible consequences of such changes.

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1.1.3 Product liability and warranty
The operator shall bear responsibility for the suitability of the device for the specific purpose.
The manufacturer accepts no liability for the consequences of misuse by the operator.
Improper installation or operation of the devices (systems) will cause the warranty to be void.
The respective "Standard Terms and Conditions" which form the basis for the sales contract
shall also apply.
1.1.4 Information concerning the documentation
To prevent any injury to the user or damage to the device it is essential that you read the
information in this document and observe applicable national standards, safety requirements
and accident prevention regulations.
If this document is not in your native language and if you have any problems understanding the
text, we advise you to contact your local office for assistance. The manufacturer cannot accept
responsibility for any damage or injury caused by misunderstanding of the information in this
document.
This document is provided to help you establish operating conditions, which will permit safe and
efficient use of this device. Special considerations and precautions are also described in the
document, which appear in the form of icons as shown below.

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1.1.5 Warnings and symbols used
Safety warnings are indicated by the following symbols.
•HANDLING
This symbol designates all instructions for actions to be carried out by the operator in the
specified sequence.
iRESULT
This symbol refers to all important consequences of the previous actions.
1.2 Manufacturer
The instrument is developed and manufactured by:
KROHNE Altometer
Kerkeplaat 12
3313 LC Dordrecht
The Netherlands
For information, maintenance or service please contact your nearest local KROHNE
representative.
DANGER!
This warning refers to the immediate danger when working with electricity.
DANGER!
This warning refers to the immediate danger of burns caused by heat or hot surfaces.
DANGER!
This warning refers to the immediate danger when using this device in a hazardous atmosphere.
DANGER!
These warnings must be observed without fail. Even partial disregard of this warning can lead to
serious health problems and even death. There is also the risk of seriously damaging the device
or parts of the operator's plant.
WARNING!
Disregarding this safety warning, even if only in part, poses the risk of serious health problems.
There is also the risk of damaging the device or parts of the operator's plant.
CAUTION!
Disregarding these instructions can result in damage to the device or to parts of the operator's
plant.
INFORMATION!
These instructions contain important information for the handling of the device.
LEGAL NOTICE!
This note contains information on statutory directives and standards.

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1.3 Safety instructions for the operator
The instructions in this manual are a necessary extension to the standard documentation and
only apply to the Explosion protected versions of the devices described in this document.
All technical information as described in the standard documentation is applicable, unless
excluded, completed or replaced by the specific directions in this manual.
General
•The relationship between ambient- and/or process temperature and temperature class is
described in this manual.
•For details of the flameproof joints, contact KROHNE Altometer.
•No repairs are permitted to the flameproof joints.
1.4 Electrostatic charge
Avoid the risk of ignition as a result of electrostatic charging. Do not use the device in areas:
•with processes that generate high charges
•with mechanical friction and cutting processes
•near electrostatic painting systems (spraying of electrons)
•with exposure of airborne powder or dust particles (pressurized systems)
DO NOT clean the meter and/or converter with a dry cloth.
The flowmeters are suitable for fixed installations only.
WARNING!
• Do not change the device. Unauthorized changes can have an effect on the explosion safety of
the devices.
• The instructions, precautions and regulations, as well as the electrical data described in the
EU type-examination certificate, must be obeyed.
• Beside the instructions for electrical installations in non-hazardous locations according to
the applicable (national) standard, equivalent to HD-IEC 60364 (e.g. VDE 0100), especially the
regulations in IEC/EN 60079-14 "Electrical installations in hazardous locations" or an
equivalent (national) standard (e.g. DIN VDE 0165 Part 1), must be strictly followed.
• Installation, adjustment, maintenance and operation of the device is only allowed to be done
by sufficient trained personnel with a correct knowledge in explosion safety!
CAUTION!
Electrostatic charging of the meter and/or converter housing MUST be avoided.

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1.5 Special notes for safe operation
Connection conditions
1. When the terminal compartment of the OPTISONIC 7300 C/…-Ex compact ultrasonic gas flow-
meter and the connection box of the OPTISONIC 7000...-Ex ultrasonic gas flow sensor is de-
signed as flameproof enclosure "Ex db”, the following must be complied with:
•The device must be connected with suitable cable glands or conduit systems that meet the
requirements stipulated in IEC/EN 60079-1 and for which a separate test certificate has been
issued. If the device is connected to conduit systems, the required sealing device shall be
provided immediately at the cable entrance(s) of the enclosure.
•Cable glands and blanking plugs of simple design must not be used.
•Openings that are not used shall be sealed in compliance with the specifications in
IEC/EN 60079-1.
•If the electrical connection is made in a potentially explosive area, the connecting cable of
the remote ultrasonic gas flow sensor OPTISONIC 7000 …-Ex, shall be connected in an
enclosure that meets the requirements of an approved type of protection in accordance with
IEC/EN 60079-0.
2. The connecting cable(s) delivered with the ultrasonic gas flow meter system, shall be fixed and
routed so that it will be adequately protected against damage. The cable is rated for a continu-
ous operating temperature of maximum 100°C. The maximum temperatures listed in the
temperature classification tables in the next Chapter are limited based on the maximum
operating temperature of the connecting cable(s), cable gland(s) and/or blind plug (only in case of a
single-beam sensor).
3. The OPTISONIC 7300 C/…-Ex and OPTISONIC 7000…-Ex shall be included in the local equipo-
tential bonding system of the potentially explosive area.
Components attached or installed (i.e. terminal compartments, bushings, Ex-type cable glands,
connectors, etc.) shall be of a technical standard that comply with the specifications on the cover
sheet and shall have a separate examination certificate. The operating conditions specified in the
component certificates must be complied with.
Warning messages
In potentially explosive atmospheres, the enclosure may only be opened after it has been de-
energized and the required waiting time has been obeyed (warning sign!).
For the OPTISONIC 7300 C/...-Ex compact gas flowmeter the waiting time is 35 minutes for
temperature class T6 and 10 minutes for temperature class T5. No waiting time(s) have to be
considered for temperature classes T4 ...T1
The warning message reads as follows:
WARNING! - Do not open flameproof enclosure when energized. Minimum waiting time before
opening: T6 = 35 min., T5 = 10 min.
For the OPTISONIC 7000…-Ex remote gas flow sensor no waiting time is required. The warning
message reads:
WARNING! - Do not open when energized.

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1.6 Approvals
The OPTISONIC 7300 ultrasonic gas flowmeters are manufactured according to the European
directive 2014/34/EU (ATEX 114) and IECEx 02 Verification System. The flowmeters are approved
for installation and use in hazardous classified locations of zone 1 and 2 and are in accordance
with the European standards of the IEC/EN 60079 series.
The OPTISONIC 7300 ultrasonic gas flowmeter series has the following approval number(s):
KIWA 18ATEX0005 X / IECEx KIWA 18.0004X / CSAE 22UKEX1360X
1.7 OPTISONIC 7300 C/...-Ex
The OPTISONIC 7300 C/...-Ex is the compact configuration of the GFC 300 ultrasonic signal
converter and the OPTISONIC 7000 ultrasonic gas flow sensor. The gas flow sensor contains
flameproof (Ex db) gas transducers (type G7.nn or G11.nn) or partially "Ex db" with an
encapsulated front "Ex ma" (type G6.nn).
The gas signal converter is provided with non-Ex or intrinsically safe (Ex ia) inputs/outputs,
indicated by an "i" in the type name and listed as OPTISONIC 7300 C/i-Ex.
The I/Os and mains supply connections are located in the terminal compartment, which can
either be ordered as "Ex db" or "Ex eb".
Depending on the configuration, the marking code can be:
OPTISONIC 7300 C/...-Ex
IEC 60079-0: 2017 / EN 60079-0: 2018 Equipment - General Requirements
IEC 60079-1: 2014 / EN 60079-1: 2014 Equipment protected by flameproof enclosures "d"
IEC 60079-7: 2015 / EN 60079-7: 2015 Equipment protected by increased safety "e"
IEC 60079-11: 2011 / EN 60079-11: 2012 Equipment protection by intrinsic safety "i"
IEC 60079-18: 2014 / EN 60079-18: 2015 Equipment protection by encapsulation "m"
INFORMATION!
If you need the approval certificate, please download it from our website.
"Ex db" terminal compartment "Ex eb" terminal compartment
II 2 G Ex db IIC T6...T2 Gb II 2 G Ex db eb IIC T6...T2 Gb
II 2 G Ex db ma IIC T6...T4 Gb II 2 G Ex db eb ma IIC T6...T4 Gb
II 2 (1) G Ex db [ia Ga] IIC T6...T2 Gb II 2 (1) G Ex db eb [ia Ga] IIC T6...T2 Gb
II 2 (1) GEx db ma [ia Ga] IIC T6...T4 Gb II 2 (1) GEx db eb ma [ia Ga] IIC T6...T4 Gb

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1.8 OPTISONIC 7000...-Ex
The OPTISONIC 7000...-Ex is the remote configuration of the ultrasonic gas flow sensor and has
flameproof (Ex db) constructed gas transducers (type G7.nn and G11.nn).
Optionally it can be equipped with type G6.nn gas transducers, that are partially flameproof (Ex
db) and have an encapsulated synthetic front (Ex ma).
The marking code is listed below.
1.9 GFC 300 F/...-Ex
The GFC 300 F/...-Ex is the remote version of the ultrasonic signal converter and has flameproof
protected connections to the flameproof gas transducers of the ultrasonic flow sensor.
The ultrasonic signal converter is either provided with non-explosion protected or intrinsically
safe in-/outputs (“Ex ia” or “Ex ib”). The connection terminals of these in-/outputs are located in
the terminal compartment, which is either configured as “Ex db” or “Ex eb”.
The marking code can be:
Approvals
The GFC 300 F/…-Ex ultrasonic signal converter in remote design is manufactured according to
the European Directive 2014/34/EU, IECEx 02 Certification System and UK Regulations 2016 No.
1107. The signal converter is approved for installation and use in hazardous classified locations
of Zone 1 and 2 in accordance with the below listed international and European Standards.
The GFC 300 F/…-Ex ultrasonic signal converter has the following approval numbers:
KIWA 17ATEX0002 X - IECEx KIWA 17.0001X - CSAE 22UKEX1288X
OPTISONIC 7000...-Ex
II 2 G Ex db IIC T6...T2 Gb
II 2 G Ex db ma IIC T6...T4 Gb
The OPTISONIC 7000…-Ex remote flow sensor is always connected to the GFC 300 F/...-Ex
ultrasonic signal converter in remote design.
INFORMATION!
When thermally insulating the ultrasonic flow sensor, make sure that the temperature of the
connection box does not exceed +90°C.
Converter type "Ex db" terminal compartment "Ex eb" terminal compartment
GFC 300 F-Ex II 2 G Ex db IIC T6 Gb II 2 G Ex db eb IIC T6 Gb
GFC 300 F/i-Ex II 2 (1) G Ex db [ia Ga] IIC T6 Gb II 2 (1) G Ex db eb [ia Ga] IIC T6 Gb
IEC60079-0:2017/EN60079-0:2018 Equipment - General Requirements
IEC60079-1:2014/EN60079-1:2014 Equipment protected by flameproof enclosures "d"
IEC60079-7:2015/EN60079-7:2015 Equipment protected by increased safety "e"
IEC60079-11:2011/EN60079-11:2012 Equipment protected by increased safety "i"

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1.10 Biogas versions
The biogas versions are low-pressure (maximum 10 bar / 145 psi) designs of the gas flowmeters
and available as compact flowmeter (OPTISONIC 7300 C/…-Ex) and as remote flow sensor
(OPTISONIC 7000…-Ex). The biogas flow sensors have one or two additionally G½" BSPP screw-
in connections for the ATEX/IECEx/UKCA-approved ("Ex ia" and/or "Ex db") temperature sensor
and (optional) pressure sensor.
1.11 Ultrasonic gas transducers
The OPTISONIC 7000...-Ex gas flow sensor, which is either part of the compact gas flow meter or
available as remote design gas flow sensor, can be equipped with ultrasonic gas transducers
made of Titanium (type G7.nn) or Inconel (type G11.nn) or stainless steel/synthetic (type G6.nn)
front.
Gas transducers (type G7.nn and G11.nn) have type of protection "flameproof enclosure" (Ex db)
according to IEC/EN 60079-1. The electrical connections are established in specially designed
flameproof enclosures with a free volume far below 100 cm3.
Gas transducers of type G6.nn have a combination of "Ex ma" (encapsulation) and "flameproof
enclosure" (Ex db).
The ultrasonic gas transducers are approved as a component and have the following approval
number(s): FTZU 17 ATEX 0057U / IECEx FTZU 17.0029 U

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1.12 Technical data
Process medium Flammable and non-flammable gases
Protection category acc. to
IEC/EN 60529 IP66/IP67
Ambient temperature range
Signal converter GFC 300 F/...-Ex -40...+65°C (+60°C) ①
Titanium transducers type G7.nn and
Inconel transducers type G11.nn OPTISONIC 7300 C/...-Ex: -40...+65°C ①
OPTISONIC 7000...-Ex : -40...+70°C
Stainless steel /Synthetic transducers ②
type G6.nn
Temp class T6: -40...+70°C
Temp class T5: -40...+85°C
Temp class T4: -40...+100°C
Process medium temperature range
Titanium transducers ②
type G7.nn
OPTISONIC 7300 C/...-Ex: -50...+185°C
OPTISONIC 7000-Ex: -50...+185°C
Inconel steel transducer
type G11.nn OPTISONIC 7300 C/...-Ex: -50...+185°C
OPTISONIC 7000-Ex: -50...+185°C
Stainless steel /Synthetic transducers ②
type G6.nn
Temp class T6: -40...+70°C
Temp class T5: -40...+85°C
Temp class T4: -40...+100°C
INFORMATION!
①
Maximum ambient temperature of 65°C applies to aluminium MH-300-Ex converter housing.
The stainless steel version is limited to +60°C.
②
The process medium temperature range of -50...+185°C applies to the flow sensor equipped
with gas transducers of type G7.nn or G11.nn.
The process medium temperature range of -40...+100°C applies to the flow sensor equipped
with gas transducers of type G6.nn The process temperature is the temperature of the medium
that surrounds the transducers. The ambient temperature is the (air) temperature at the
location where the meter is installed.

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1.13 Marking labels ATEX/IECEx (examples)
The marking labels shown here are configuration examples. The examples shown are valid for
ATEX and IECEx.
Figure 1-1: Example: OPTISONIC 7000-Ex nameplate
1 Ex approval mark, marking code, ATEX/IECEx approval number and ambient temperature range
2 Explosion safety notes
3 PED data (max. pressure and temperature) and Tag number
4 Auto ID according to DIN SPEC 91406 (data matrix)
5 Year of manufacturing and country of origin, China RoHS logo and CE sign with number(s) of notified body / bodies.
6 Protection class
7 Calibration data
8 Type designation of the flow meter with serial number
9 Name and address of the manufacturer.
Figure 1-2: Example of the nameplate for the GFC 300 F-Ex signal converter
1 Ex approval mark, marking code, ATEX /IECEx approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 Main supply data
6 Calibration data / CG number
7 Type designation of the flow meter and manufacturing date
8 Name and address of the manufacturer.
a: CE mark with number of notified body
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)

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Figure 1-3: Example of the nameplate for the GFC 300 F/i-Ex signal converter
1 Ex approval mark, marking code, ATEX /IECEx approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 Main supply data
6 Calibration data / CG number
7 Type designation of the flow meter and manufacturing date
8 Name and address of the manufacturer.
a: CE mark with number of notified body
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)

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Figure 1-4: Example of the nameplate for the OPTISONIC 7300 C-Ex compact version
1 Ex approval mark, marking code, ATEX /IECEx approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 PED data
6 Mains supply data and Electronic Revision number
7 Calibration data / size info and serial number
8 Type designation of the flow meter and manufacturing date
9 Name and address of the manufacturer.
a: CE mark with number of notified body and CG number
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)
Figure 1-5: Example of the nameplate for the OPTISONIC 7300 C/i-Ex compact version
1 Ex approval mark, marking code, ATEX /IECEx approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 PED data
6 Mains supply data and Electronic Revision number
7 Calibration data / size info and serial number
8 Type designation of the flow meter and manufacturing date
9 Name and address of the manufacturer.
a: CE mark with number of notified body and CG number
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)

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1.13.1 Marking labels UKCA Ex (examples)
The marking labels shown here are configuration examples. The examples shown are valid for
UKCA.
Figure 1-6: Example: OPTISONIC 7000-Ex nameplate
1 Ex approval mark, marking code, UKCA Ex approval number and ambient temperature range
2 Explosion safety notes
3 PED data (max. pressure and temperature) and Tag number
4 Auto ID according to DIN SPEC 91406 (data matrix)
5 Year of manufacturing and country of origin, China RoHS logo and UKCA sign with number(s) of notified body / bodies.
6 Protection class
7 Calibration data
8 Type designation of the flow meter with serial number
9 Name and address of the manufacturer.
Figure 1-7: Example of the nameplate for the GFC 300 F-Ex signal converter
1 Ex approval mark, marking code, UKCA approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 Main supply data
6 Calibration data / CG number
7 Type designation of the flow meter and manufacturing date
8 Name and address of the manufacturer.
a: UKCA mark with number of notified body
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)

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Figure 1-8: Example of the nameplate for the GFC 300 F/i-Ex signal converter
1 Ex approval mark, marking code, UKCA approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 Main supply data
6 Calibration data / CG number
7 Type designation of the flow meter and manufacturing date
8 Name and address of the manufacturer.
a: UKCA mark with number of notified body
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)

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Figure 1-9: Example of the nameplate for the OPTISONIC 7300 C-Ex compact version
1 Ex approval mark, marking code, UKCA Ex approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 PED data
6 Mains supply data and Electronic Revision number
7 Calibration data / size info and serial number
8 Type designation of the flow meter and manufacturing date
9 Name and address of the manufacturer.
a: UKCA mark with number of notified body and CG number
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)
Figure 1-10: Example of the nameplate for the OPTISONIC 7300 C/i-Ex compact version
1 Ex approval mark, marking code, UKCA Ex approval number and ambient temperature range
2 Additional information (intrinsically safe circuits)
3 Explosion safety notes and warning messages
4 Protection class and Tag number
5 PED data
6 Mains supply data and Electronic Revision number
7 Calibration data / size info and serial number
8 Type designation of the flow meter and manufacturing date
9 Name and address of the manufacturer.
a: UKCA mark with number of notified body and CG number
b Manufacturer website, safety instructions, disposal and China RoHs marking
c: Auto ID according to DIN SPEC 91406 (data matrix)

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Auto ID according to DIN specifications
The auto ID code (data matrix) guides you directly to the PICK server (Product Information Center
KROHNE).
Scan the auto ID code on the device nameplate to download all product specific information.
•Handbooks, Quick Starts and Supplementary instructions
•Calibration certificates
•Factory settings as bin file
•Parameter data sheets
•Digital nameplates

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1.13.2 I/O sticker (Example)
Example of I/O sticker for modules on the inside of the terminal compartment cover
•Fieldbus IO PA on IO board 1.
•Intrinsic safety option with current out active
•Pulse/Status Out/Control in on IO board 2
Other combinations are possible, for details. refer to
General on page 27
Figure 1-11: I/O sticker (non-Ex ia) on cover of terminal compartment
Figure 1-12: I/O sticker (Ex ia) on cover of terminal compartment