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6

 SERVICE 

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ESK4... ...

www.krohne.com

10/2017 - 4001078703 - AD ESK4 Ex II2G R03 en

6.1  Maintenance

Maintenance work of a safety-relevant nature within the meaning of explosion protection may 
only be carried out by the manufacturer, his authorised representative or under the supervision 
of authorised inspectors.

For systems in hazardous areas, regular tests are required in order to maintain the proper 
condition.

The following checks are recommended:

Check the housing, connection terminals and feed lines for corrosion and/or damage.

Close the housing following any maintenance work on the electronic signal output.

6.2  Dismantling

Replacing the electronic signal output

Due to the modular design of the electronic signal output, from a safety perspective it is possible 
to replace a module with an identical spare part.

Exchanging and dismantling should take place in a de-energised state, if at all possible. If this is 
not possible, the basic conditions for intrinsic safety (e.g. no grounding or connection of different 
intrinsically safe circuits to one another) must be observed during dismantling.

The dismantling and installation is within the responsibility of the operator.

CAUTION!

There may be a risk of losing measuring accuracy!

Содержание ESK4 Series

Страница 1: ...output Equipment category II 2G EPL Gb ESK4 ESK4 ESK4 ESK4 Supplementary Instructions Supplementary Instructions Supplementary Instructions Supplementary Instructions KROHNE 10 2017 4001078703 AD ESK...

Страница 2: ...ription of device 5 2 2 Description code 5 2 3 Marking 5 2 4 Equipment category 7 2 5 Types of protection 7 2 6 Ambient temperature temperature classes 7 2 7 Electrical data 8 3 Installation 9 3 1 Mou...

Страница 3: ...th EN 60079 0 2012 A11 2013 and EN 60079 11 2012 The EU declaration of conformity is based on the EC type examination certificate of the Physikalisch Technische Bundesanstalt PTB The X after the certi...

Страница 4: ...nstructions Assembly installation start up and maintenance may only be performed by personnel trained in explosion protection CAUTION The operator or his agent is responsible for observing any additio...

Страница 5: ...s of the following elements 2 3 Marking The marking of the module is on the housing where the following identification plate can be found Figure 2 1 Description of the safety description code 1 E E E...

Страница 6: ...PTB 10 ATEX 2021 X or IECEx PTB 17 0033 X 5 Note to observe the documentation and for disposal 6 Note on electrostatic charge Figure 2 4 Example of nameplate for a version with I O 1 Type designation...

Страница 7: ...gnal outputs are approved for the following ambient temperatures Permissible ambient temperatures for ESK4 The marking contains the following information The marking contains the following information...

Страница 8: ...out on the ESK4 module cover connects internal intrinsically safe circuits Only certified modules of type ESK4 I O ESK4 FF or ESK4 PA may be connected The additional connector on the ESK4 I O module c...

Страница 9: ...onditions Housing protection Electronic signal outputs are to be protected against external influences by a housing minimum IP20 Electrostatic charge The plastic housing of the electronic signal outpu...

Страница 10: ...ta must be observed The connecting cables must be selected according to prevailing installation standards e g EN 60079 14 The connecting cables must be fixed and laid so they are sufficiently protecte...

Страница 11: ...ousing and connected has been checked for the proper state with regard to its installation and connection requirements The user of the system must have it checked before start up in compliance with th...

Страница 12: ...nd or damage Close the housing following any maintenance work on the electronic signal output 6 2 Dismantling Replacing the electronic signal output Due to the modular design of the electronic signal...

Страница 13: ...NOTES 7 13 ESK4 www krohne com 10 2017 4001078703 AD ESK4 Ex II2G R03 en...

Страница 14: ...7 NOTES 14 ESK4 www krohne com 10 2017 4001078703 AD ESK4 Ex II2G R03 en...

Страница 15: ...NOTES 7 15 ESK4 www krohne com 10 2017 4001078703 AD ESK4 Ex II2G R03 en...

Страница 16: ...ervices Head Office KROHNE Messtechnik GmbH Ludwig Krohne Str 5 47058 Duisburg Germany Tel 49 203 301 0 Fax 49 203 301 10389 info krohne com KROHNE 10 2017 4001078703 AD ESK4 Ex II2G R03 en Subject to...

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