WIKA 55 Series Betriebsanleitung

Additional operating instructions

Zusatz-Betriebsanleitung

Mode d’emploi complémentaires

Manual de instrucciones adicional

Model R5502

Additional operating instructions for hazardous areas

Model 55 + option ATEX

Zusatz-Betriebsanleitung für explosionsgefährdete

Bereiche, Typ 55 + option ATEX

Mode d’emploi complémentaires concernant les zones

explosives, type 55 + option ATEX

Manual de instrucciones adicional para zonas

potencialmente explosivas, modelo 55 + option ATEX

CE Ex

II 2G Ex h IIC T6 ...T1 Gb X

II 2D Ex h IIIC T85 °C ...T450 °C Db X

WIKA®is a registered trademark in various countries.

WIKA®ist eine geschützte Marke in verschiedenen Ländern.

Prior to starting any work, read the operating instructions!

Keep for later use!

Vor Beginn aller Arbeiten Betriebsanleitung lesen!

Zum späteren Gebrauch aufbewahren!

Lire le mode d‘emploi avant de commencer toute opération !

A conserver pour une utilisation ultérieure !

¡Leer el manual de instrucciones antes de comenzar cualquier trabajo!

¡Guardar el manual para una eventual consulta!

Additional operating instructions model 55

(ATEX)

Page 3 - 14

Zusatz-Betriebsanleitung Typ 55 (ATEX)

Seite 15 - 26

Mode d‘emploi complémentaires

type 55 (ATEX)

Page 27 - 38

Manual de instrucciones adicional

modelo 55 (ATEX)

Página 39 - 50

11583747.07 12/2021 EN/DE/FR/ES

WIKA additional operating instructions model 55 (ATEX)

Declarations of conformity can be found online at www.wika.com.

11583747.07 12/2021 EN/DE/FR/ES

WIKA additional operating instructions model 55 (ATEX) 3

Contents

1. Safety 4

2. Commissioning, operation 8

3. Special conditions for use (X conditions) 9

Appendix: EU declaration of conformity 13

Supplementary documentation:

▶This additional operating instructions for hazardous areas

applies in conjunction with the operating instructions “Bimetal

thermometer, model 55” (article number 12968065).

11583747.07 12/2021 EN/DE/FR/ES

4WIKA additional operating instructions model 55 (ATEX)

1. Safety

DANGER!

Danger to life due to loss of explosion protection

Non-observance of these instructions and their contents

may result in the loss of explosion protection.

▶Observe the safety instructions in this chapter and

further explosion instructions in these operating

instructions.

▶Follow the requirements of the ATEX directive.

▶Observe the information given in the applicable

type examination certicate and the relevant

regulations for installation and use in hazardous areas

(e.g. IEC 60079-11, IEC 60079-10 and IEC 60079-14).

1.1 Explanation of symbols

DANGER!

... indicates a potentially dangerous situation in the

hazardous area that can result in serious injury or death, if

not avoided.

1. Safety

11583747.07 12/2021 EN/DE/FR/ES

WIKA additional operating instructions model 55 (ATEX) 5

1.2 Intended use

These bimetal thermometers are used for measuring temperature in

hazardous areas of industrial applications.

The instrument has been designed and built solely for the intended

use described here, and may only be used accordingly.

Check whether the classication is suitable for the application (see Ex

marking, chapter 1.5 “Labelling, safety marks”). Observe the relevant

national regulations.

The non-observance of the instructions for use in hazardous areas

can lead to the loss of the explosion protection. Adhere to the

following limit values and instructions (see data sheet).

The manufacturer shall not be liable for claims of any type based on

operation contrary to the intended use.

1.3 Responsibility of the operator

The responsibility for classication of zones lies with the plant

operator and not the manufacturer/supplier of the equipment.

1.4 Personnel qualication

The skilled personnel must have knowledge of ignition protection

types, regulations and provisions for equipment in hazardous areas.

1. Safety

11583747.07 12/2021 EN/DE/FR/ES

6WIKA additional operating instructions model 55 (ATEX)

1.5 Labelling, safety marks

Product label (example)

Model + option ATEX

Ex marking

Year of manufacture

Serial number

Before mounting and commissioning the instrument,

ensure you read the operating instructions!

Do not ll the instruments with lling liquid subsequently.

"MODEL"

With variables:

Mit Variablen:

Without variables:

Ohne Variablen:

Serial number acc. to Order

Seriennummer nach Auftrag

Year of production

Produktionsjahr

"Model" NS / NG A# RI / ÄI

A5525 63 14481642 01

A5500 100 14481643 01

A5501 160 14481644 01

R5526 63 14481645 01

R5502 100 14481646 01

R5503 160 14481647 01

S55xx 63 not available -

S5550 100 14481648 01

S5551 160 14481649 01

II 2G Ex h IIC T6 ... T1 Gb X

II 2D Ex h IIIC T85°C ... T450°C Db X

Thermometer + option ATEX

Example:

Beispiel:

Model acc. to Order

Modell nach Auftrag

WIKA 63911 Klingenberg / Germany

"SERIAL-NO" "YEAR"Year

II 2G Ex h IIC T6 ... T1 Gb X

II 2D Ex h IIIC T85°C ... T450°C Db X

Thermometer + option ATEX

WIKA 63911 Klingenberg / Germany

A5500

II 2G Ex h IIC T6 ... T1 Gb X

II 2D Ex h IIIC T85°C ... T450°C Db X

Thermometer + option ATEX

WIKA 63911 Klingenberg / Germany

Serial No.:

Year

Serial No.:

Year

Serial No.: ABCD123456 2021

www.wika.com

D-63911 Klingenberg

ALEXANDER WIEGAND SE & Co. KG

Printed versions are not subject to change management and are not subject to update service and are not considered valid.

All rights as well as rights to register patents and other property rights reserved. Any reproduction or disclosure only with authorization from WIKA.

Ausgedruckte Versionen unterliegen nicht dem Änderungsdienst und haben keinen Anspruch auf Aktualität.

Alle Rechte sowie Rechte zur Anmeldung von Patenten und anderen Schutzrechten vorbehalten. Vervielfältigung und Weitergabe nur mit Genehmigung durch WIKA.

by WIKA

1 2

3 4

DEKLI1_EN_A4M_T01 15.04.2020

ISO 8015

SIZE ISO 14405

units

Check indicator

[inch]

language

GER/ENG

sheets /

reference

modified

released

size

nominal

material

raw

part

scale

UV/DR

comments

drawing number

µm

R in ±0.5±0.3±0.2

...400...120...30 >120>30>6

±0.1

...6

0.5

Tol. ISO 2768 - mK

141663-

ISO 1302 xyz

Surface texture

first created

REVISION

Workflow

Prüfung-01

15.02.21

15.02.2021

HOHMST

14475129

SCHILD

2:1 11

07.05.21 HOHMST

14113998

Rollhaftetikette PET sillber matt

Roll adhesive PET silver dull

SORT-ZCHG SHI 35*15 THERMOMETER TYP 55 ATEX (EX c) O.EZE ETK SKL

LABEL

Only for information / Nur zur Information









1. Safety

11583747.07 12/2021 EN/DE/FR/ES

WIKA additional operating instructions model 55 (ATEX) 7

Ex marking

II 2G Ex h IIC T6 ... T1 Gb X

II 2D Ex h IIIC T85 °C ... T450 °C Db X

Marking Designation Meaning

CE marking European conformity

Specic marking for

explosion protection

Ex symbol

II Symbol of the

equipment group

Equipment intended for use in other

places than underground parts of mines,

and in those parts of surface installations

of such mines, liable to be endangered by

redamp and/or combustible dust and an

explosive atmosphere.

2Symbol of the

equipment category

High safety, approved for zone 1 and 21

GEx atmosphere Concerning explosive atmospheres

caused by gases, vapours or mists

DEx atmosphere Concerning explosive atmospheres

caused by dust

Ex Ex marking Standards ISO 80079-36 and

ISO 80079-37 applied

hIgnition protection

type

Non-electrical equipment for explosive

atmospheres

An ignition protection type is not applied

to the letter “h”.

IIC Suitable atmosphere Gas atmosphere group IIC

IIIC Suitable atmosphere Combustible yings, non-conductive dust

and conductive dust

T6 ... T1 Maximum surface

temperature

Symbol indicating the temperature class

The actual maximum surface temperature

depends not on the equipment itself, but

mainly on the operating conditions.

1. Safety

11583747.07 12/2021 EN/DE/FR/ES

8WIKA additional operating instructions model 55 (ATEX)

Marking Designation Meaning

T85 °C ...

T450 °C

Maximum surface

temperature

Maximum surface temperature

The actual maximum surface temperature

depends not on the equipment itself, but

mainly on the operating conditions.

Gb Equipment Protection

Level (EPL)

Potential ignition sources that are eective

or may become eective during normal

operation and expected malfunction

XSpecic conditions

of use see operating

instructions

Ambient temperature with special range

Specic conditions of use apply.

2. Commissioning, operation

DANGER!

Danger to life from missing instrument grounding

With missing or incorrect grounding, there exists a risk of

dangerous voltages (leading to, for example, mechanical

damage, electrostatic charge or induction).

▶Ground thermometer!

Observe the special conditions (see chapter 3 “Special conditions for

use (X conditions)”, point 4).

1. Safety / 2. Commissioning, operation

11583747.07 12/2021 EN/DE/FR/ES

WIKA additional operating instructions model 55 (ATEX) 9

3. Special conditions for use (X conditions)

1) Design temperatures

Permissible ambient temperature at case:

Temperature ranges

Unlled instrument -40 ...+70 °C

Filled instrument -40 ... +70 °C

Option: low temperature -50 ... +70 °C

Option: POLARgauge®-70 ... +60 °C

Permissible medium temperature: max. end of scale

Observe the surface temperature for ATEX application:

The permissible medium temperature does not only depend on

the instrument design, but also on the ignition temperature of the

surrounding gases, vapours or dust.Take both aspects into account.

2) Maximum surface temperature

The surface temperature mainly depends on the medium and

ambient temperature. The instrument itself does not contain any

heating sources. For prevention, consider the maximum medium

temperature as maximum surface temperature, if it is not possible

to determine the real surface temperature even in the case of

expected malfunctions.

Instruments for use in hazardous gas/air, vapour/air and mist/air

atmospheres:

Temperature class

(gas application)

Maximum permissible surface

temperature (for the end application)

T6 80 °C

T5 95 °C

T4 130 °C

T3 195 °C

T2 250 °C (290 °C) 1)

T1 250 °C (440 °C) 1)

1) only for instruments without liquid lling

11583747.07 12/2021 EN/DE/FR/ES

10 WIKA additional operating instructions model 55 (ATEX)

Hazardous dust atmosphere

For dusts, the procedure specied in ISO/IEC 80079-20-2 for

determining the ignition temperature has to be applied.The

ignition temperature is determined separately for dust clouds and

dust layers, respectively. For dust layers, the ignition temperature

depends on the dust layer thickness per EN/IEC 60079-14.

Ignition temperature

of dust

Maximum permissible medium

temperature (in the measuring system)

Dust cloud T

cloud < 2/3 Tcloud

Dust layer Tlayer < Tlayer − 75 K − (reduction depending on the

layer thickness)

The permissible maximum medium temperature must not exceed

the lowest determined value, even in case of a malfunction.

Explosive atmosphere consisting of hybrid mixtures

The instruments must not be used in areas in which an

atmosphere consisting of explosive hybrid mixtures (dusts mixed

with gases) can occur.

3) Mount the instrument in such a way that, taking into consideration

the inuence of convection and heat radiation, no deviation above or

below the permissible ambient and medium temperatures can occur.

4) The instruments must be earthed via the process connection.

This is why electrically conductive sealing should be used at

the process connection. Alternatively, take other measures for

grounding. External sources of stray electric currents depend on

end use application and must be assessed by the end user.

5) Avoid handling of materials that react dangerously with the

materials used for the instrument, and substances liable to

spontaneous combustion.

3. Special conditions for use (X conditions)

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