WIKA TC84 Mode d'emploi

Operating instructions

Betriebsanleitung

Mode d'emploi

Manual de instrucciones

EN

DE

FR

ES

Sapphire-design thermocouple for high-temperature measurements

Model TC84

Saphir-Design-Thermoelement für Hochtemperaturmessungen

Typ TC84

Thermocouple version Saphir pour la mesure de hautes

températures, type TC84

Termopar diseñado en zafiro para mediciones de alta temperatura

Modelo TC84

Model TC84

EN

DE

FR

ES

2

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WIKA operating instructions model TC84

Operating instructions model TC84

Page

3 - 20

Betriebsanleitung Typ TC84

Seite

21 - 38

Mode d‘emploi type TC84

Page

39 - 56

Manual de instrucciones modelo TC84

Página

57 - 73

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!

EN

Contents

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WIKA operating instructions model TC84 3

1. General information 4

2. Design and function 5

3. Safety 7

4. Transport, packaging and storage 10

5. Commissioning, operation 11

6. Faults 14

7. Maintenance and cleaning 16

8. Dismounting, return and disposal 17

9. Specifications 19

EN

1. General information

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WIKA operating instructions model TC844

1. General information

■

The instrument described in the operating instructions has been manufactured

using state-of-the-art technology. All components are subject to stringent quality and

environmental criteria during production. Our management systems are certified to

ISO 9001 and ISO 14001.

■

These operating instructions contain important information on handling the instrument.

Working safely requires that all safety instructions and work instructions are observed.

■

The operating instructions are part of the product and must be kept in the immediate

vicinity of the instrument and readily accessible to skilled personnel at any time. Pass

the operating instructions on to the next operator or owner of the instrument.

■

Observe the relevant local accident-prevention regulations and general safety

regulations for the instrument's range of use.

■

Skilled personnel must have carefully read and understood the operating instructions

prior to beginning any work.

■

The general terms and conditions contained in the sales documentation shall apply.

■

Subject to technical modifications.

■

Further information:

- Internet address: www.wika.de / www.wika.com

- Application consultant:

Tel.: +49 9372 132-0

Fax: +49 9372 132-406

info@wika.de

EN

2. Design and function

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WIKA operating instructions model TC84 5

2. Design and function

2.1 Overview



Solid-machined connection housing



Process flange



Metal support tube



Ceramic outer protection tube

2.2 Description

This thermocouple is used for temperature measurement in industrial applications. This

high-temperature thermocouple with a gas-tight sapphire protection tube has been

specifically developed for use in gas reactors. Through the monocrystalline structure, the

sapphire protects the precious metal of the thermocouple from poisonous toxic media in

the aggressive atmosphere of the gasification reactor.

For the connection side, the thermometer is fitted with a case. The case design contains

the connection terminals.

This document describes standard versions of instruments. For applications in hazardous

areas special instrument designs are required.

For further information for operation in hazardous areas, see the additional information for the

corresponding ignition protection type (separate document).









EN

2. Design and function

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WIKA operating instructions model TC846

Measuring point ungrounded

The model TC84 sapphire-design thermocouple consists of a precious metal

thermocouple, a sapphire or ceramic inner tube and a ceramic external protection tube.

This external protection tube is fixed into the metal support tube.

2.3 Dimensions in mm

2.4 Scope of delivery

Cross-check scope of delivery with delivery note.

Thermocouple measuring point

Ceramic outer protection tube

Measuring insert with sapphire

protection tube

Legend:

U Insertion length

SL Support tube length



Sealing cap



Cable outlet





EN

3. Safety

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WIKA operating instructions model TC84 7

3. Safety

3.1 Explanation of symbols

WARNING!

... indicates a potentially dangerous situation that can result in serious injury

or death, if not avoided.

CAUTION!

... indicates a potentially dangerous situation that can result in light injuries or

damage to property or the environment, if not avoided.

WARNING!

... indicates a potentially dangerous situation that can result in burns, caused

by hot surfaces or liquids, if not avoided.

Information

... points out useful tips, recommendations and information for efficient and

trouble-free operation.

3.2 Intended use

The model TC84 sapphire-design thermocouple, with gas-tight sapphire protection tube,

described here is suitable for temperature measurement in critical industrial applications

such as gasification or GtL reactors and is suitable for direct installation into the process.

Due to its monocrystalline structure, the sapphire protection tube extends the life of the

thermocouple's precious metal by 3 times, in comparison to purely ceramic protection

tube materials. As a result of the pressure-tight, hermetically sealed junctions between the

sapphire and metal protection tube, and also a multifold sealing system in the connection

housing, toxic gases are prevented from being able to escape from the reactor.

Neither repairs nor structural modifications are permitted, and any would void the

guarantee and the respective certification. The manufacturer shall not be responsible for

constructional modifications after delivery of the instruments.

The instrument has been designed and built solely for the intended use described here,

and may only be used accordingly.

The technical specifications contained in these operating instructions must be observed.

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

the intended use.

EN

3. Safety

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WIKA operating instructions model TC848

3.3 Responsibility of the operator

The system operator is responsible for selecting the thermometer or protection tube, and

for the selection of their materials, so as to guarantee their safe operation within the plant

or machine. When preparing a quote, WIKA can only give recommendations which are

based on our experience in similar applications.

The safety instructions within these operating instructions, as well as the safety, accident

prevention and environmental protection regulations for the application area must be

maintained.

The operator is obliged to maintain the product label in a legible condition.

3.4 Personnel qualification

WARNING!

Risk of injury should qualification be insufficient

Improper handling can result in considerable injury and damage to

equipment.

▶

The activities described in these operating instructions may only be

carried out by skilled electrical personnel who have the qualifications

described below.

Skilled electrical personnel

Skilled electrical personnel are understood to be personnel who, based on their technical

training, know-how and experience as well as their knowledge of country-specific

regulations, current standards and directives, are capable of carrying out work on

electrical systems and independently recognising and avoiding potential hazards. The

skilled electrical personnel have been specifically trained for the work environment they

are working in and know the relevant standards and regulations. The skilled electrical

personnel must comply with current legal accident prevention regulations.

Operating personnel

The personnel trained by the operator are understood to be personnel who, based on their

education, knowledge and experience, are capable of carrying out the work described and

independently recognising potential hazards.

Special operating conditions require further appropriate knowledge, e.g. of aggressive

media.

EN

3. Safety

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WIKA operating instructions model TC84 9

3.5 Personal protective equipment

The personal protective equipment is designed to protect the skilled personnel from

hazards that could impair their safety or health during work. When carrying out the various

tasks on and with the instrument, the skilled personnel must wear personal protective

equipment (e.g. gas detector, harness, etc.).

Follow the instructions displayed in the work area regarding personal protective

equipment!

The requisite personal protective equipment must be provided by the operating company.

3.6 Labelling, safety marks

Product label (example)



Model



Serial number



Information on version (measuring element, measuring range...)



Year of manufacture

Before mounting and commissioning the instrument, ensure you

read the operating instructions!

TC84

1 x Type K / 1 / .

0 ... 1260 °C

IEC 60584

Made in Germany

2015

11012345

D-63911 Klingenberg

 





EN

4. Transport, packaging and storage

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WIKA operating instructions model TC8410

4. Transport, packaging and storage

4.1 Transport

Check the instrument for any damage that may have been caused by transport.

Obvious damage must be reported immediately.

CAUTION!

Damage through improper transport

With improper transport, a high level of damage to property can occur.

▶

When unloading packed goods upon delivery as well as during internal

transport, proceed carefully and observe the symbols on the packaging.

▶

With internal transport, observe the instructions in chapter 4.2 “Packaging

and storage”.

If the instrument is transported from a cold into a warm environment, the formation of

condensation may result in instrument malfunction. Before putting it back into operation,

wait for the instrument temperature and the room temperature to equalise.

4.2 Packaging and storage

Do not remove packaging until just before mounting.

Store the Styrofoam packaging as well as the protective transport tube of the probe for any

return transport (repair option).

To unpack the TC84 thermocouple, follow chapter 5.1 “Unpacking the thermocouple and

dismounting the protective transport tube”.

Permissible conditions at the place of storage:

Storage temperature: -40 ... +80 °C [-40 ... +176 °F]

Avoid exposure to the following factors:

■

Direct sunlight or proximity to hot objects

■

Mechanical vibration, mechanical shock (putting it down hard)

■

Soot, vapour, dust and corrosive gases

■

Hazardous environments, flammable atmospheres

Store the instrument in its original packaging in a location that fulfils the conditions listed

above. If the original packaging is not available, pack and store the instrument as described

below:

1. Place the instrument, along with shock-absorbent material, in the packaging.

2. If stored for a prolonged period of time (more than 30 days), place a bag containing a

desiccant inside the packaging.

EN

5. Commissioning, operation

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WIKA operating instructions model TC84 11

5. Commissioning, operation

Personnel: Skilled electrical personnel

Protective equipment: Safety clothing, helmet, harness, gas detector etc.

WARNING!

Damage to the measuring instrument by operation outside the upper or

lower limits of the operating temperature

Failure to observe the permissible operating temperature, also taking into

account convection and radiation, can even cause damage to the thermometer

during mounting.

▶

The upper and lower limits of the specified operating temperature range

must not be exceeded.

WARNING!

Physical injuries and damage to property and the environment caused

by hazardous media

Upon contact with hazardous media (e.g. oxygen, acetylene, flammable

or toxic substances), harmful media (e.g. corrosive, toxic, carcinogenic,

radioactive), and also with refrigeration plants and compressors, there is a

danger of physical injuries and damage to property and the environment.

Should a failure occur, aggressive media with extremely high temperature

and under high pressure or vacuum may be present at the instrument.

▶

For these media, in addition to all standard regulations, the appropriate

existing codes or regulations must also be followed.

▶

Wear the requisite protective equipment.

5.1 Unpacking the thermocouple and dismounting the protective transport tube

When unpacking the TC84 thermocouple, and also when removing the protective transport

tube, carry out the following steps:

1. Check the packaging for damage.

2. Open cardboard packaging.

3. Remove foam padding.

4. Lift out the TC84 thermocouple with two people.

5. Clamp the process flange in the vice

1)

using suitable protective jaws.

6. Remove the additional protection from between the ceramic tube and the protective

transport tube.

7. Carefully and alternately loosen the three clamping screws on the protective transport

tube in order to prevent any tilting of the protective transport tube. At the same time, a

second person must observe the opening of the protective transport tube at the lower

end in order to prevent any contact of the tube wall with the ceramic.

8. After loosening the clamping screws, carefully pull the protective transport tube off.

1) If no vice is available, we recommend disassembling on a workbench. The first person must support the connection

head and at the same time loosen the threaded connection as described in point 7. The second person, in the meantime,

supports the protective transport tube and pulls it off carefully.

EN

5. Commissioning, operation

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WIKA operating instructions model TC8412

5.2 Mechanical mounting

Ceramic protection tube materials withstand changes in temperature only to a limited

extent. A temperature shock can therefore easily result in stress cracks and consequently

in damage to the protection tube.

For this reason, preheat thermocouples with ceramic or sapphire protection tubes before

installation, and then slowly immerse them into the hot process.

In accordance with DIN 43724, an insertion speed of 1 cm/min is recommended for

protection tubes with a diameter of 24/26 mm. For smaller diameters of 10/15 mm, the

speed can be increased to 50 cm/min. As a basic principle, higher process temperatures

require a lower insertion speed.

In addition to the protection from thermal stress, ceramic protection tubes must also be

protected from mechanical loads. The reason for these harmful stresses are bending forces

in case of a horizontal mounting position. As a consequence, an additional support must

be provided in case of a horizontal mounting position depending on the diameter, greater

nominal lengths and the design.

In principle, the deflection problem also occurs for metal protection tubes, particularly for

insertion lengths > 500 mm. For process temperatures > 1,200 °C [> 2,192 °F], vertical

mounting should be preferred.

The flange dimensions must match those of the mating flange on the process side. The

seals used must be suitable for the process and the flange geometries (consult the delivery

note). When mounting, depending on the seals used, use the appropriate tightening

torques and tools (e.g. torque spanner).

5.3 Electrical mounting

Cable glands

Requirements for meeting ingress protection:

■

Only use cable glands within their indicated clamping range and operating temperature

(cable diameter suitable for the cable gland).

■

Do not use the lower clamping area with very soft cable types.

■

Only use round cables (if necessary, slightly oval in cross-section).

■

Do not twist the cable.

■

Repeated opening/closing is possible; however only if necessary, as it might have a

detrimental effect on the ingress protection

■

For cables with a pronounced cold-flow behaviour the screw connection must be fully

tightened.

EN

5. Commissioning, operation

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WIKA operating instructions model TC84 13

5.4 Electrical connection

CAUTION!

Danger of short circuit

Damage to cables, wires and connection points can lead to malfunction of

the instrument.

▶

Avoid damaging the cables and wires. Fine-stranded leads with bare ends

must be finished with end splices.

Open the G 1 ¼ sealing caps of the connection head on the head side of the cable entry

and after fitting the connection leads, tighten to at least 50 Nm. Opening the plug screws

on the top of the connection housing and the sealing caps opposite is not permitted.

5.5 Temperature carry-over from the process

Any heat reflux from the process which exceeds the operating temperature of the

connection housing of a maximum of 200 °C [392 °F], is not permitted and must be

prevented by suitable thermal insulation or a corresponding structural design. Furthermore,

make sure that only suitable connection cables and cable glands are used.

14274948.01

EN

6. Faults

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WIKA operating instructions model TC8414

6. Faults

Personnel: Skilled electrical personnel

Protective equipment: Safety clothing, helmet, harness, gas detector etc.

CAUTION!

Physical injuries and damage to property and the environment

If faults cannot be eliminated by means of the listed measures, the instrument

must be taken out of operation immediately.

▶

Ensure that there is no longer any signal present and protect against being

put into operation accidentally.

▶

Contact the manufacturer.

▶

If a return is needed, please follow the instructions given in chapter 8.2

“Return”.

WARNING!

Physical injuries and damage to property and the environment caused

by hazardous media

Upon contact with hazardous media (e.g. oxygen, acetylene, flammable

or toxic substances), harmful media (e.g. corrosive, toxic, carcinogenic,

radioactive), and also with refrigeration plants and compressors, there is a

danger of physical injuries and damage to property and the environment.

Should a failure occur, aggressive media with extremely high temperature

and under high pressure or vacuum may be present at the instrument.

▶

For these media, in addition to all standard regulations, the appropriate

existing codes or regulations must also be followed.

▶

Wear the required protective equipment (depending on the application; the

thermometer itself is basically not dangerous).

For contact details see chapter 1 “General information” or the back page of

the operating instructions.

Faults Causes Measures

No signal/cable break Mechanical load too high or

damage

Replace the thermometer

Erroneous measured

values and response

times too long

Wrong mounting geometry, for

example mounting depth too

deep or heat dissipation too high

The temperature-sensitive area

of the sensor must be within the

medium

Deposits on the sensor or

protection tube

Remove deposits

Erroneous

measured values (of

thermocouples)

Parasitic voltages (thermal

voltages, galvanic voltage) or

wrong compensating cable

Use suitable compensating cable

EN

6. Faults

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WIKA operating instructions model TC84 15

Faults Causes Measures

Display of measured

value jumps

Cable break in connection cable

or loose contact caused by

mechanical overload

Replace the connection cable e.g.

with bend protection or thicker

conductor cross-section

Corrosion Composition of the medium

not as expected or modified or

unsuitable material selected

Analyse medium and then select a

more-suitable material or check the

protection tube regularly

Signal interference Stray currents caused by electric

fields or earth circuits

Use shielded connection leads, and

increase the distance from motors

and power cables

Earth circuits Eliminate potential differences by

using galvanically isolated barriers

or transmitters

EN

7. Maintenance and cleaning

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WIKA operating instructions model TC8416

7. Maintenance and cleaning

For contact details see chapter 1 “General information” or the back page of

the operating instructions.

7.1 Maintenance

The thermometers described here are maintenance-free.

Repairs must only be carried out by the manufacturer.

7.2 Cleaning

CAUTION!

Physical injuries and damage to property and the environment

Improper cleaning may lead to physical injuries and damage to property and

the environment. Residual media in the dismounted instrument can result in a

risk to persons, the environment and equipment.

▶

Carry out the cleaning process as described below.

1. Prior to cleaning, properly disconnect the instrument.

2. Use the required protective equipment (depending on the application; the thermometer

itself is basically not dangerous).

3. Clean the instrument with a moist cloth.

This applies in particular to thermometers with a case made of plastic and cable probes

with plastic-insulated connection lead, to ensure that any risk of electrostatic charge is

avoided.

Electrical connections must not come into contact with moisture!

CAUTION!

Damage to the instrument

Improper cleaning may lead to damage to the instrument!

▶

Do not use any aggressive cleaning agents.

▶

Do not use any hard or pointed objects for cleaning.

4. Wash or clean the dismounted instrument, in order to protect persons and the

environment from exposure to residual media.

EN

8. Dismounting, return and disposal

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WIKA operating instructions model TC84 17

8. Dismounting, return and disposal

8.1 Dismounting

WARNING!

Physical injuries and damage to property and the environment

through residual media

Upon contact with hazardous media (e.g. oxygen, acetylene, flammable

or toxic substances), harmful media (e.g. corrosive, toxic, carcinogenic,

radioactive), and also with refrigeration plants and compressors, there is a

danger of physical injuries and damage to property and the environment.

▶

Before storage of the dismounted instrument (following use) wash or

clean it, in order to protect persons and the environment from exposure to

residual media.

▶

Use the required protective equipment (depending on the application; the

thermometer itself is basically not dangerous).

▶

Observe the information in the material safety data sheet for the

corresponding medium.

Only disconnect the thermometer once the system has been depressurised.

WARNING!

Risk of burns

During dismounting there is a risk of dangerously hot media escaping.

▶

Let the instrument cool down sufficiently before dismounting it!

8.2 Return

Strictly observe the following when shipping the instrument:

All instruments delivered to WIKA must be free from any kind of hazardous substances

(acids, bases, solutions, etc.) and must therefore be cleaned before being returned.

WARNING!

Physical injuries and damage to property and the environment

through residual media

Residual media in the dismounted instrument can result in a risk to persons,

the environment and equipment.

▶

With hazardous substances, include the material safety data sheet for the

corresponding medium.

▶

Clean the instrument, see chapter 7.2 “Cleaning”.

When returning the instrument, use the original packaging or a suitable transport

packaging.

EN

8. Dismounting, return and disposal

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WIKA operating instructions model TC8418

To avoid damage:

1. Place the instrument, along with shock-absorbent material, in the packaging.

Place shock-absorbent material evenly on all sides of the transport packaging.

2. If possible, place a bag containing a desiccant inside the packaging.

3. Label the shipment as carriage of a highly sensitive measuring instrument.

Information on returns can be found under the heading “Service” on our local

website.

8.3 Disposal

Incorrect disposal can put the environment at risk.

Dispose of instrument components and packaging materials in an environmentally

compatible way and in accordance with the country-specific waste disposal regulations.

EN

9. Specifications

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WIKA operating instructions model TC84 19

9. Specifications

Sapphire-design thermocouple, model TC84

Sensor Types S, R, B

Process connection

■

Nominal width

■

Pressure ratings

■

Sealing face

ASME: 1 ½" ... 4"

EN 1092-1: DN40 ... DN100

ASME: 300 ... 1,500 lbs

EN 1092-1: PN40 ... PN100

ASME: RF, RTJ, LT, S

EN 1092-1: Form B1, B2, E, C

Materials

■

Connection housing and flange

■

Outer protection tube

■

Protection tube material for

measuring insert

1.4541 / 1.5415 / 1.7335 / 1.7380 / F11 / F22 / SS321

Ceramic C799 / Ceramic C610

Sapphire or ceramic C799

Outer protection tube ceramic

■

Ceramic C799

■

Ceramic C610

Ø 15 x 2.5 mm

Ø 15 x 2 mm

Support tube length SL Min. 148 mm (5.8")

Max. 953 mm (37.5")

Insertion length U Min. 395 mm (15.6")

Max. 1.200 mm (47.2")

Measuring insert Sapphire or ceramic

Ø 8 mm

Tests

■

Measuring insert at 100 bar (1,450 psi)

■

Ceramic feed-through of the secondary sealing at

100 bar (1,450 psi)

■

Entire measuring instrument at 1.5 times flange

pressure rating

■

Option: Calibration at 3 test points (1,000 °C [1,832 °F],

1,100 °C [2,012 °F] and 1,200 °C [2,192 °F])

For further specifications see WIKA data sheet TE 65.84 and the order documentation.

EN

14274725.02 08/2018 EN/DE/FR/ES

WIKA operating instructions model TC8420

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