WIKA TR12 Series Instrucciones de funcionamiento

Additional operating instructions

Zusatz-Betriebsanleitung

Mode d’emploi complémentaire

Manual de instrucciones adicional

Additional operating instructions for hazardous areas (Ex d, Ex t)

Models TR12 and TC12

Zusatz-Betriebsaneleitung für explosionsgefährdete Bereiche

(Ex d, Ex t), Typen TR12 und TC12

Mode d’emploi complémentaire pour zones

explosives (Ex d, Ex t), types TR12 et TC12

Manual de instrucciones adicional para zonas potencialmente

explosivas (Ex d, Ex t), Modelos TR12 y TC12

Models TR12-B-xDxx, TC12-B-xDxx Models TR12-M-xDxx, TC12-M-xDxx

BVS 07 ATEX E 071 X

IECEx BVS 11.0042X

14280101.02 08/2023 EN/DE/FR/ES

2WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

Additional operating instructions

models TR12, TC12 (Ex d, Ex t)

Page

3 - 37

Zusatz-Betriebsanleitung Typen

TR12, TC12 (Ex d, Ex t)

Seite

38 - 54

Mode d’emploi complémentaire types

TR12, TC12 (Ex d, Ex t)

Page

55 - 82

Manual de instrucciones adicional

modelos TR12, TC12 (Ex d, Ex t)

Página

83 - 106

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!

14280101.02 08/2023 EN/DE/FR/ES

3WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

Contents

1. Ex marking 4

2. Safety 9

3. Commissioning, operation 15

4. Special conditions of use (X conditions) 24

5. Calculation examples for self-heating at the thermowell tip 25

Annex 1: EU declaration of conformity 27

Annex 2: WIKA ATEX and IECEx case and instrument list 28

14280101.02 08/2023 EN/DE/FR/ES

4WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

1. Ex marking

DANGER!

Danger to life from explosion

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

certificate and the relevant regulations for installation and use in hazar-

dous areas (e.g. EN IEC 60079-0, IEC 60079-1, IEC 60079-10 and

IEC 60079-14).

Check whether the classification is suitable for the application. Observe the relevant

national regulations.

1. Ex marking

Supplementary documentation:

▶

This additional information for hazardous areas applies in conjunction with the

operating instructions “Resistance thermometer TR12 and thermocouple TC12”

(article number 14064370).

14280101.02 08/2023 EN/DE/FR/ES

5WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

1. Ex marking

Series T*12-B-*DB or T*12-B-*DC (flameproof enclosure)

Variant 1: empty enclosure

Electri-

cal data

Marking Thermowell Temperatures

Temperature

class

Ambient

max

= 30 V

II 2G Ex db IIC T*

2) 3)

Gb No T1 ...T5 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 1/2G Ex db IIC T*

2) 3)

Ga/Gb

Yes T1 ...T5 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 2G Ex db IIC T6

Gb No T6 -40 ... +80 °C

[-40 ... +176 °F]

-60 ... +80 °C

[-76 ... +176 °F]

II 1/2G Ex db IIC T6

Ga/Gb

Yes T6 -40 ... +80 °C

[-40 ... +176 °F]

-60 ... +80 °C

[-76 ... +176 °F]

1) The low ambient temperature of -40 °C [-40 °F] applies to models with Rosemount or Limatherm enclosures.The

low ambient temperature of either -40 °C [-40 °F] or -60 °C [-76 °F] applies to models with WIKA enclosures series

1/4000, 5/6000, 7/8000. For explanation of symbols for the low temperature range, see page 14.

2) The temperature class depends on the ambient temperature.

3) The maximum surface temperature (T

max

) at the tip of the probe or thermowell = T

(process temperature) +

self-heating. Refer to manual for calculation method.

14280101.02 08/2023 EN/DE/FR/ES

6WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

Variant 2: empty enclosure + electronics

Electri-

cal data

Marking Thermowell Temperatures

Temperature

class

Ambient 1)

Umax = 30 V

Pmax = 2 W

II 2G Ex db IIC T* 2) 3) Gb No T1 ...T4 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 1/2G Ex db IIC T* 2) 3)

Ga/Gb

Yes T1 ... T4 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 2G Ex db IIC T5 3) Gb No T5 -40 ... +70 °C

[-40 ... +158 °F]

-60 ... +70 °C

[-76 ... +158 °F]

II 1/2G Ex db IIC T5 3) Ga/Gb Ye s T5 -40 ... +70 °C

[-40 ... +158 °F]

-60 ... +70 °C

[-76 ... +158 °F]

II 2G Ex db IIC T6 3) Gb No T6 -40 ... +55 °C

[-40 ... +131 °F]

-60 ... +55 °C

[-76 ... +131 °F]

II 1/2G Ex db IIC T6 3) Ga/Gb yes T6 -40 ... +55 °C

[-40 ... +131 °F]

-60 ... +55 °C

[-76 ... +131 °F]

1) The low ambient temperature of -40 °C [-40 °F] applies to models with Rosemount or Limatherm enclosures.The

low ambient temperature of either -40 °C [-40 °F] or -60 °C [-76 °F] applies to models with WIKA enclosures series

1/4000, 5/6000, 7/8000. For explanation of symbols for the low temperature range, see page 14.

2) The temperature class depends on the ambient temperature.

3) The maximum surface temperature (Tmax) at the tip of the probe or thermowell = Tp(process temperature) +

self-heating. Refer to manual for calculation method.

Variant 3: certified equipment (field transmitter)

Electri-

cal data

Marking Temperatures

Temperature class Ambient

See trans-

mitter 1)

II 2G Ex db IIC T* Gb 2) See transmitter 1) See transmitter 1)

1) The parameters for certified equipment (field transmitter) must be taken from the relevant manual.

2) The maximum surface temperature (Tmax) at the tip of the probe or thermowell = Tp(process temperature) +

self-heating. Refer to manual for calculation method.

1. Ex marking

14280101.02 08/2023 EN/DE/FR/ES

7WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

Series T*12-B-*DG (flameproof and dustproof enclosure)

Variant 1: empty enclosure

Electri-

cal data

Marking Thermowell Temperatures

Temperature

class

Ambient 1)

Umax = 30 V

II 2G Ex db IIC T* 2) 3) Gb

II 2D Ex tb IIIC T* 3) Db

No T1 ...T5 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 1/2G Ex db IIC T* 2) 3)

Ga/Gb

II 2D Ex tb IIIC T* 3) Db

Yes T1 ... T5 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 2G Ex db IIC T6 3) Gb

II 2D Ex tb IIIC T* 3) Db

No T6 -40 ... +80 °C

[-40 ... +176 °F]

-60 ... +80 °C

[-76 ... +176 °F]

II 1/2G Ex db IIC T6 Ga/Gb

II 2D Ex tb IIIC T* 3) Db

Yes T6 -40 ... +80 °C

[-40 ... +176 °F]

-60 ... +80 °C

[-76 ... +176 °F]

1) The low ambient temperature of -40 °C [-40 °F] applies to models with Rosemount or Limatherm enclosures.The

low ambient temperature of either -40 °C [-40 °F] or -60 °C [-76 °F] applies to models with WIKA enclosures series

1/4000, 5/6000, 7/8000. For an explanation of symbols for the low temperature range, see page 14

2) The temperature class depends on the ambient temperature.

3) The maximum surface temperature (Tmax) at the tip of the probe or thermowell = Tp(process temperature) +

self-heating. Refer to manual for calculation method.

1. Ex marking

14280101.02 08/2023 EN/DE/FR/ES

8WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

Variant 2: empty enclosure + electronics

Electri-

cal data

Marking Thermowell Temperatures

Temperature

class

Ambient 1)

Umax = 30 V

Pmax = 2 W

II 2G Ex db IIC T* 2) 3) Gb

II 2D Ex tb IIIC T* 3) Db

No T1 ...T4 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 1/2G Ex db IIC T* 2) Ga/Gb

II 2D Ex tb IIIC T* 3) Db

Yes T1 ... T4 -40 ... +85 °C

[-40 ... +185 °F]

-60 ... +85 °C

[-76 ... +185 °F]

II 2G Ex db IIC T5 3) Gb

II 2D Ex tb IIIC T* 3) Db

No T5 -40 ... +70 °C

[-40 ... +158 °F]

-60 ... +70 °C

[-76 ... +158 °F]

II 1/2G Ex db IIC T5 Ga/Gb

II 2D Ex tb IIIC T* 3) Db

Yes T5 -40 ... +70 °C

[-40 ... +158 °F]

-60 ... +70 °C

[-76 ... +158 °F]

II 2G Ex db IIC T6 3) Gb

II 2D Ex tb IIIC T* 3) Db

No T6 -40 ... +55 °C

[-40 ... +131 °F]

-60 ... +55 °C

[-76 ... +131 °F]

II 1/2G Ex db IIC T6 3) Ga/Gb

II 2D Ex tb IIIC T* 3) Db

yes T6 -40 ... +55 °C

[-40 ... +131 °F]

-60 ... +55 °C

[-76 ... +131 °F]

1) The low ambient temperature of -40 °C [-40 °F] applies to models with Rosemount or Limatherm enclosures.The

low ambient temperature of either -40 °C [-40 °F] or -60 °C [-76 °F] applies to models with WIKA enclosures series

1/4000, 5/6000, 7/8000. For an explanation of symbols for the low temperature range, see page 14.

2) The temperature class depends on the ambient temperature.

3) The maximum surface temperature (Tmax) at the tip of the probe or thermowell = Tp(process temperature) +

self-heating. Refer to manual for calculation method.

Variant 3: certified equipment (field transmitter)

Elec-

trical

data

Marking Temperatures

Temperature class Ambient

See

transmit-

ter 1)

II 2G Ex db IIC T* 2) 3) Gb

II 2D Ex tb IIIC T* 3) Db

See transmitter 1) See transmitter 1)

1) The parameters for certified equipment (field transmitter) must be taken from the relevant manual.

2) The temperature class depends on the ambient temperature.

3) The maximum surface temperature (Tmax) at the tip of the probe or thermowell = Tp(process temperature) +

self-heating. Refer to manual for calculation method.

1. Ex marking

14280101.02 08/2023 EN/DE/FR/ES

9WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

When there is a built-in transmitter and/or a digital indicator, the special conditions from

the type examination certificate ,see chapter 4 “Special conditions of use (X conditions)”

apply.

2. Safety

2.1 Explanation of symbols

DANGER!

... indicates a potentially dangerous situation in the hazardous area that

can result in serious injury or death, if not avoided.

2.2 Intended use

Thermometers of this series are suitable for temperature measurement in zone 1 hazar-

dous areas. If the thermometer is installed in a thermowell, it is suitable for zone 21, for

zone separation between zones 20 and 21 or zone separation between zones 0 and 1.

Possible sensor measuring ranges: -196 ... +1,200 °C [-321 ... +2,192 °F].The selection

of the suitable thermowell material, dependent on the medium to be measured, must

be ensured by the operator.The replaceable, centrically spring-loaded measuring insert

and its extended spring travel enable combination with the widest range of connection

head designs.

Technical description models series T*12-B-*DB or T*12-B-*DC (flameproof

enclosure)

The electrical thermometers TR12-B-*DB, TR12-B-*DC (resistance thermome-

ters) respectively TC12-B-*DB, TC12-B-*DC (thermocouple) are made of a module

TR12-M-*D* or TC12-M-*D* which is fitted to an Ex d certified enclosure.The module

consists of a spring-loaded measuring insert TR12-A-*** or TC12-A-*** installed in a

flameproof neck tube.The measuring insert in combination with the neck tube works as

a flameproof joint.The measuring insert of the standard variants is exchangeable and

suitable to fit in a thermowell.

Variants according to drawing 14207105 are designed to install directly into the process.

The measuring insert of those variants is not exchangeable.

The probe part of the measuring insert is made of a welded tube or mineral-insulated

cable.The temperature sensor is embedded in ceramic powder, a temperature-resistant

potting compound, a cement compound or thermal compound.

If the temperature sensor is designed as grounded thermocouple, the wires of the

thermocouple are in direct contact with the sheath. Models with diameters smaller than

3 mm [0.12 in] as well as grounded thermocouples shall be considered as galvanically

connected to the ground potential.

1. Ex marking / 2. Safety

14280101.02 08/2023 EN/DE/FR/ES

10 WIKA additional operating instructions TR12/TC12, flameproof enclosure (Ex d, Ex t)

The connection side of the measuring insert consists of a welded sleeve (transition)

including the attached connection wires.

The thermometers model TR12-M-*DB, TR12-M-*DC, TC12-M-*DB or TC12-M-*DC

will be fitted to an Ex d and Ex t certified enclosure in accordance with IECEX TUN

18.0010U or TÜV 18 ATEX 211394 U manufactured by WIKA series 1/4000, 7/8000 or

5/6000.The enclosure and covers are made of stainless steel or aluminium. The cover

could be optionally provided with a glass lens (window).

Alternatively, the thermometers can be fitted to other certified cases or assemblies, so

long as they are listed in the “WIKA ATEX and IECEx Ex d and Ex t case and instrument

list” article no.: 14011281.08 ,see „Annex 2:WIKA ATEX and IECEx case and instru-

ment list“.

3 different variants of process thermometers model T*12-B-*DB or T*12-B-*DC are

available:

■

Variant 1:The thermometer (module) model TR12-M-*D* or TC12-M-*D* is fitted to a

certified empty enclosure in the ignition protection type “flameproof enclosure”.Termi-

nals are mounted inside the case.

■

Variant 2:The thermometer (module) model TR12-M-*D* or TC12-M-*D* is fitted to

a certified empty enclosure in the ignition protection type “flameproof enclosure”.

Electronic equipment is mounted inside the case.

■

Variant 3:The thermometer (module) model TR12-M-*D* or TC12-M-*D* is fitted to

a certified equipment (field transmitter) in the ignition protection type “flameproof

enclosure”.

The modules TR12-M-*DB, TR12-M-*DC, TC12-M-*DB or TC12-M-*DC are designed

to fit to an Ex d certified enclosure by the end user.The module is marked without a

temperature class, either II 2G Ex db IIC Gb or II 1/2G Ex db IIC Ga/Gb. All conditions

and limitations as described for variants 1 to 3 apply to this combined equipment. The

responsibility rests with the operator.

2. Safety

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