KROHNE ESKIIESK3PA User Manual

Handbook

Handbook

ESK

ESK

ESKESK

HandbookHandbook

Signal converter

Additional Ex manual

Additional Ex manual

Additional Ex manualAdditional Ex manual

LEGAL NOTICE!

This cocument is based on a German source document!

CONTENTS

1 GENERAL SAFETY INFORMATION ................................................. 3

2 DEVICE VERSIONS AND MARKING ................................................ 4

2.1 Description ........................................................................................................... 4

2.2 Safety description code........................................................................................ 4

2.3 Marking ................................................................................................................ 5

2.4 Category / Zone.................................................................................................... 5

2.5 Ignition protected types ....................................................................................... 6

2.6 Temperature classes........................................................................................... 6

3 INSTALLATION AND OPERATION .................................................. 7

3.1 Installation ........................................................................................................... 7

4 SAFETY FEATURES........................................................................ 8

4.1 Electrical connection ........................................................................................... 8

5 SERVICE......................................................................................... 9

5.1 Maintenance......................................................................................................... 9

5.2 Dismantling.......................................................................................................... 9

ESK

6 KROHNE measuring technology - Product overview................... 12

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ESK

GENERAL SAFETY INFORMATION 1

This supplementary “Ex” instruction applies to explosion protected versions of the
electronic signal outputs ESKII, ESK2A and ESK3-PA. It supplements the installation and
operating instructions issued for the non-hazardous-duty versions.

These instructions only contain data relevant to explosion protection. The technical
specifications of the installation and operating instructions for the non-hazardous-duty
version remain valid unless explicitly excluded or replaced by these Instructions.

Electronic signal outputs of the ESKII, ESK2A and ESK3-PA series have been certified in
accordance with European Directive 94/9 EG (ATEX 100a) to European standards EN 60079- X for
use in potentially explosive areas as stated in

by the Physikalisch-Technische Bundesanstalt (PTB).

This certification and its boundary conditions must be observed.

Installation, startup and maintenance may be carried out only by personnel trained in explosion

Installation, startup and maintenance may be carried out only by personnel trained in explosion

Installation, startup and maintenance may be carried out only by personnel trained in explosion Installation, startup and maintenance may be carried out only by personnel trained in explosion
protection !

protection !

protection !protection !

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2 DEVICE VERSIONS AND MARKING

2.1 Description

ESK II and the update version ESK2A are a 4...20mA loop transmitter in 2-wire technology, used
as a signal output. The linear analog signal output represents the volume or massflow of a VA­meter or the level of a levelmeter.

ESK3-PA provides additional information for connecting and operating a PROFIBUS-PA field bus.
The details in these instructions, especially the safety instructions, have not been modified by
this supplement, and must continue to be observed.
The signal converter ESK3-PA is designed in the context of the modular concept. Installation and
attachment are identical to the signal converter ESKII and ESK2A.

2.2 Safety description code

ESK

The safety description code consists of the following elements:

1 EEEElectronic SSSSignal output KKKKrohne
2 Designs of the signal output :

II

II - Analog signal output 4-20mA with HART signal

IIII
2A

2A - Analog signal output 4-20mA with HART signal

2A2A
3-PA

3-PA - Digital signal output for Profibus-PA in conformity with FISCO model

3-PA3-PA

1

positions not needed can be omitted from the description code.

1

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2.3 Marking

Marked housing

The housing is marked with the type designation of the electronic signal outputs ESK .... as

shown below

ESKII / ESK2A

DEVICE VERSIONS AND MARKING 2

1 Manufacturer
2 European Conformity
3 Certification details
4 Type according to description code
5 Serial number
6 Year of manufacture

ESK3-PA

1 Manufacturer
2 European Conformity
3 Certification details
4 Type according to description code
5 Serial number
6 Year of manufacture

The description code is described in the section before. The aboriginal marking of all types
according to EN50014 is registered to EEx ia IIC.

2.4 Category / Zone

The electronic signal outputs ESK .... are designed in category 2 for use in zone 1.

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2 DEVICE VERSIONS AND MARKING

2.5 Ignition protected types

The power circuits of the electronic signal outputs ESK .... are designed to conform with the

intrinsically safe type classified in level of protection “ia”. Operation with intrinsically safe
circuits in level of protection "ib" is also allowed.

2.6 Temperature classes

Depending on temperature class and ambient temperature, the electronic signal outputs

ESK .... are approved for the process temperatures contained in the following table.

ESK

Temperature class Permitted ambient temperature T

ESK II / ESK2A ESK3-PA
T6 -40 … 60 -40 … 50
T5 -40 … 75 -40 … 65
T4...T1 -40 … 85 -40 … 85

ESK .... permitted ambient temperature T

depending on temperature class

amb

amb

[°C]

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ESK

3.1 Installation

Installation to be carried out by qualified persons in conformity with installation standards
for potentially explosive areas (e.g. EN 60079-14 / VDE 0165).

The information given in the installation and operating instructions as well as in the
supplementary instructions (Ex) and the EU certificate must be observed.

The suitability of the electronic signal output for the intended use should be checked by
referring to the nameplate.

Special attention must be given to the following points.

INSTALLATION AND OPERATION 3

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4 SAFETY FEATURES

4.1 Electrical connection

The electronic signal outputs must be connected to intrinsically safe circuits. The maximum
safety-related values are listed below.

ESKII / ESK2A

Connection by way of a certified intrinsically safe isolation amplifier with the following
maximum values:

• Ui =30 V

• Ii =100 mA

• Pi =1,0 W

For the interconnection to intrinsically safe circuits note the following values:

• Ci = 20 nF

• Li ≈ 0 µH

ESK

ESK3-PA

Connection by way of a certified segment coupler with the following maximum values:

• Pi =5,32W

• Ui =24 V

• Ii =380mA

For the interconnection, the permissible limit values for the Profibus-PA in conformity with
the FISCO model must be observed.

Pinning

The electronic signal outputs are electrically connected at the terminals. The table shows
the polarity at the terminals

Terminal Polarity of terminals for electronic signal output
Number ESKII ESK2A / ESK3-PA
11 + Not polarity sensitive
12 -

Terminal polarity of ESK ....

Connection lines

The connection lines for the intrinsically safe circuits must be selected in keeping with the
applicable installation standard (e.g. EN 60079-14 / VDE 0165).

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ESK

Repairs relevant to safety in relation to explosion protection may only be carried out by the
manufacturer, his authorized agent, or under the supervision of qualified experts.

5.1 Maintenance

The electronic signal outputs are maintenance-free under normal operating conditions and
when used as intended.

Within the scope of checks required to be carried out in hazardous areas to maintain systems in
proper working order, the following visual inspections should be carried out at regular intervals:

• Inspect the housing, the terminals and the incoming lines for signs of corrosion and

damage.

SERVICE 5

5.2 Dismantling

Due to the intrinsically safe supply of the electronic signal output ESK ..., replacement
during operation is possible, but should preferably be carried out in off-load condition.
If this is not possible, the boundary conditions for intrinsic safety (e.g. no grounding or
interconnection of different intrinsically safe circuits) must be observed during dismantling.

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5 SERVICE

.

ESK

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SERVICE 5

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KROHNE measuring technology - Product overview

• Electromagnetic flowmeters • Level measuring instruments

• Variable area flowmeters • Temperature measuring instruments

• Mass flowmeters • Pressure measuring instruments

• Ultrasonic flowmeters • Analysis

• Vortex flowmeters • Oil and gas industry

• Flow controllers

Addresses:

Great Britain

Germany

Northern sales office

KROHNE Messtechnik GmbH & Co. KG
Bremer Str. 133
D-21073 Hamburg
Phone:[phone]
Fax:[phone]
[e-mail]
ZIP code: 10000 - 29999, 49000 - 49999

Western and middle sales office

KROHNE Messtechnik GmbH & Co. KG
Ludwig-Krohne-Straße
D-47058 Duisburg
Phone:[phone]
Fax:[phone]
[e-mail]
ZIP code: 30000 - 34999, 37000 ­48000, 50000 - 53999, 57000 - 59999,
98000 - 99999

Southern sales office

KROHNE Messtechnik GmbH & Co. KG
Landsberger Str. 392
D-81241 Munich
Phone:[phone]
Fax:[phone]
[e-mail]
ZIP code: 0 - 9999, 80000 - 89999,
90000 - 97999

Southwestern sales office

KROHNE Messtechnik GmbH & Co. KG
Rüdesheimer Str. 40
D-65239 Hochheim/Main
Phone: [phone]
Fax:[phone]
[e-mail]
ZIP code: 35000 - 36999, 54000 ­56999, 60000 - 79999

Instrumentation and control
equipment catalog

TABLAR Messtechnik GmbH
Ludwig-Krohne-Str. 5
D-47058 Duisburg
Phone:[phone]
Fax:[phone]
[e-mail]; www.tab lar.de

KROHNE sales
companies

International

Australia

Australia

AustraliaAustralia
KROHNE Australia Pty Ltd
Quantum Business Park 10/287
Victoria Rd Rydalmere NSW 2116
Phone: [phone]
Fax: [phone]
[e-mail]

Austria

Austria

AustriaAustria
KROHNE Gesellschaft m.b.H.
Modecenterstraße 14
A-1030 Vienna
Phone:[phone]
Fax:[phone]
[e-mail]

Belgium

Belgium

Belgium Belgium
KROHNE Belgium N.V.
Brusselstraat 320
B-1702 Groot Bijgaarden
Phone:[phone]
Fax:[phone]
[e-mail]

Brazil

Brazil

Brazil Brazil
KROHNE Conaut Controles
Automaticos Ltda.
Estrada Das Águas Espraiadas, 230
C.P. 56 06835 - 080 EMBU - SP
Phone:[phone]
Fax:[phone]
[e-mail]

China

China

ChinaChina
KROHNE Measurement Instruments
(Shanghai) Co. Ltd., (KMIC)
9th Floor, Puyuan Science Park,
Building A
396 Guilin Road
Shanghai 200233
Tel.: [phone]
Fax: [phone]
[e-mail]

Czech Republic

Czech Republic

Czech RepublicCzech Republic
Krohne CZ, spol. s r.o.
Sobìsická 156
63800 Brno
Phone: [phone]
Fax: [phone]
[e-mail]

France

France

FranceFrance
KROHNE S.A.S.
Les Ors BP 98
F-26103 ROMANS Cedex
Phone:[phone]
Fax:[phone]
[e-mail]

Great Britain

Great BritainGreat Britain
KROHNE Ltd.
Rutherford Drive
Park Farm Industrial Estate
Wellingborough
Northants NN8 6AE
Phone:[phone]
Fax:[phone]
[e-mail]

CIS

CIS

CISCIS
Kanex KROHNE Engineering AG
Business Centre "POLLARS", office
164
Derbenevskaya nab., 11-B
113114 Moscow/Russia
Tel. / Fax: [phone]
Tel. / Fax: [phone]
Tel. / Fax: [phone]
Tel. / Fax: [phone]
[e-mail]

India

India

IndiaIndia
Krohne Marshall Ltd.
A-34/35, M.I.D.C. Industrial Area,
H-Block
Pimpri Poona 411018
Phone:[phone]
Fax:[phone]
[e-mail]

Iran

Iran

IranIran
KROHNE Liaison Office
North Sohrevardi Ave. 26,
Sarmad St., Apt. #9
Tehran 15539
Phone: [phone]
Fax: [phone]
[e-mail]

Italy

Italy

ItalyItaly
KROHNE Italia Srl.
Via V. Monti 75
I-20145 Milan
Phone:[phone]
Fax:[phone]
[e-mail]

Korea

Korea

KoreaKorea
KROHNE Korea
Room 508 Miwon Bldg 43
Yoido-Dong Youngd eungpo-Ku
Seoul, Korea
Phone: [phone]
Fax: [phone]
[e-mail]

Netherlands

Netherlands

NetherlandsNetherlands
KROHNE Nederland B.V.
Kerkeplaat 14
NL-3313 LC Dordrecht
Phone:[phone]
Fax:[phone]
Service Direct: [phone]
[e-mail]

Norway

Norway

NorwayNo rway
KROHNE Norway A.S.
Ekholtveien 114
NO-1521 Moss
Phone:[phone]
Fax:[phone]
[e-mail]

Poland

Poland

PolandPoland
KROHNE Polska Sp.z.o.o.
ul. Stary Rynek Oliwski 8a
80-324 Gdansk
Phone: [phone]
Fax.:[phone]
[e-mail]

Switzerland

Switzerland

SwitzerlandSwitzerland
KROHNE AG
Uferstr. 90
CH-4019 Basel
Phone:[phone]
Fax:[phone]
[e-mail]

Singapore

Singapore

SingaporeSingapore
Tokyo Keiso - KROHNE (Singapore)
Pte. Ltd.
14, International Bus iness Park,
Jurong East
Chiyoda Building, #01-01/02
Singapore 609922
Phone: [phone]
Fax : [phone]
[e-mail]

Republic of South Africa

Republic of South Africa

Republic of South AfricaRepublic of South Africa
KROHNE Pty. Ltd.
Bushbock Close
Corporate Park South
Midrand, Gauteng
P.O. Box 2069
Midrand, 1685
Tel.: [phone]
Fax: [phone]
[e-mail]

Spain

Spain

SpainSpain
I.I. KROHNE IBERIA, S.r.l.
Poligono Indust rial Nilo
Calle Brasil, nº. 5
28806 Alcalá de Henares Madrid
Phone: [phone]
Fax: [phone]
[e-mail]

USA

USA

USAUSA
KROHNE, Inc.
7 Dearborn Road
Peabody, MA 01960
Phone: +1 (800) FLOWING
Phone: [phone] (in MA)
[e-mail]

Representatives

Algeria
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Slovenia
Sweden
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Thailand
Tunisia
Turkey
Venezuela
Yugoslavia

Other countries

KROHNE Messtechnik GmbH & Co. KG
Ludwig-Krohne-Str. 5
D-47058 Duisburg
Phone:[phone]
Fax:[phone]
[e-mail]

© KROHNE 09/2008 4000333901 MA ESK-Ex- II2G-AD-R01 en Subject to change without notice

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