WIKA TW61 User manual

ES
FR
DE
EN
Operating instructions
Betriebsanleitung
Mode d'emploi
Manual de instrucciones
Thermowells model TW61
Thermowell for sanitary applications, model TW61
Schutzrohr für die sterile Verfahrenstechnik, Typ TW61
Doigt de gant pour applications sanitaires, type TW61
Vaina para procesos estériles, modelo TW61

© 2012 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
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!
ES
FR
DE
EN
2
WIKA operating instructions thermowell, model TW61
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Operating instructions model TW61 Page 3 - 18
Betriebsanleitung Typ TW61 Seite 19 - 34
Mode d'emploi type TW61 Page 35 - 50
Manual de instrucciones modelo TW61 Página 51 - 66

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Contents
Contents
Declarations of conformity can be found online at www.wika.com.
1. General information 4
2. Safety 5
3. Specifications 7
4. Design and function 8
5. Transport, packaging and storage 13
6. Commissioning, operation 14
7. Maintenance and cleaning 15
8. Faults 16
9. Dismounting, return and disposal 17
Appendix: EU declaration of conformity 18

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1. General information
■The thermowells described in these operating instructions have been designed and
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 thermowell.
Working safely requires that all safety instructions and work instructions are observed.
■Observe the relevant local accident prevention regulations and general safety
regulations for the thermowell‘s range of use.
■The operating instructions are part of the product and must be kept in the immediate
vicinity of the thermowell and readily accessible to skilled personnel at any time.
■Skilled personnel must have carefully read and understood the operating instructions
prior to beginning any work.
■The manufacturer's liability is void in the case of any damage caused by using the
product contrary to its intended use, non-compliance with these operating instructions,
assignment of insufficiently qualified skilled personnel or unauthorised modifications to
the thermowell.
■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
- Relevant data sheet: TW 95.61
- Application consultant: Tel.: [phone]
Fax: [phone]
[e-mail]
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 equipment or the environment, if not avoided.
Information
… points out useful tips, recommendations and information for efficient and
trouble-free operation.
1. General information

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DANGER!
... identifies hazards due to electrical power. Should the safety instructions not be
observed, there is a risk of serious or fatal injury.
WARNING!
... indicates a potentially dangerous situation that can result in burns, caused by
hot surfaces or liquids, if not avoided.
2. Safety
WARNING!
Before installation, commissioning and operation, ensure that the appropriate
thermowell has been selected in terms of design and specific measuring
conditions.
Before installation, commissioning and operation, ensure that the thermowell
material used is chemically resistant/neutral to the medium being measured and
that it withstands the mechanical stresses from the process.
Non-observance can result in serious injury and/or damage to the equipment.
Further important safety instructions can be found in the individual chapters of
these operating instructions.
2.1 Intended use
Thermowells are used to protect temperature sensors from the process conditions.
Furthermore, thermowells enable the removal of the temperature sensor without having
to shut down the process; and they guard against damage to either the environment
or to personnel, which might be caused by escaping process media.The model TW61
thermowell has been specifically developed for use in sanitary applications.
The thermowell 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.
Improper handling or operation of the instrument outside of its technical specifications
requires the instrument to be taken out of service immediately and inspected by an
authorised WIKA service engineer.
The manufacturer shall not be liable for claims of any type based on operation contrary to
the intended use.
1. General information / 2. Safety

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2.2 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 personnel who have the qualifications described below.
■Keep unqualified personnel away from hazardous areas.
Skilled personnel
Skilled personnel are understood to be personnel who, based on their technical training,
knowledge of measurement and control technology and on their experience and knowledge
of country-specific regulations, current standards and directives, 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.
2.3 Special hazards
WARNING!
For hazardous media such as oxygen, acetylene, flammable or toxic gases or
liquids, and refrigeration plants, compressors, etc., in addition to all standard
regulations, the appropriate existing codes or regulations must also be followed.
DANGER!
Make sure that the thermowell is sufficiently earthed.
2.4 Labelling, safety marking
2. Safety
Outer diameter x wall thickness
Tubular body
material
Material code
(complete assembly)
Identification of the qualified
inspector (for stamping)
CE marking (required
for DN > 25 mm)
Pipe standard
Hygiene class
max. nominal pressure

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3. Specifications
Specifications Model TW61
Designs of connection ■Flow-through housing
■Angular housing
Nominal width of tube Pipe classes per DIN, ISO and ASME BPE
see table of dimensions, chapter 4.2 “Dimensions in mm”
Permissible temperature ranges
■Ambient
■Medium to be measured
-40 ... +85 °C
-50 ... +150 °C
Materials (wetted parts)
■Pipes to DIN 11866 series A (metric) and
series B (ISO)
■Pipes to DIN 11866 series C (ASME BPE)
Stainless steel 1.4435
Stainless steel 316L
Connection to the thermometer Model TR21-B: G 3/8 male
Model TR22-B: M24 x 1.5 rotatable male nut
Approvals ■Pressure equipment directive
PS > 200 bar, module H, pressure accessory
■EAC (option)
Import certificate
■MTSCHS (option)
Permission for commissioning
■EHEDG (option)
Hygienic Equipment Design
(Confirmation of EHEDG conformity only valid with
separately selectable 2.2 test report)
Certificates (option) ■2.2 test report
■3.1 inspection certificate
■Hygiene certificates
Certificate Flow-through
housing
Angular housing
3-A yes, for all
dimensions
yes, from
DIN 11866 series A: DN 32
DIN 11866 series B: DN 33.7
DIN 11866 series C: DN 1 ½"
Patents, property rights ■Dead-space free welding nipple, registered under
no. DE 102010037994 and US 12 897.080
■Case with easily cleanable twist crown, integ-
rated into the case cap is registered under no.
GM 000984349 (option: with BVS head)
For further specifications see WIKA data sheet TW 95.61 and the order documentation.
3. Specifications

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4. Design and function
4.1 Description
The model TW61 thermowell is used to adapt thermometers and measuring inserts to the
process and protects the sensor against harsh process conditions. Furthermore, it enables
the removal of the temperature sensor without having to open the process.
To integrate it into the process, the thermowell is directly orbitally-welded into a pipeline.
The connection ends are smooth and prepared for orbital welding.
In combination with a resistance thermometer, the rotatable threaded connection of the
connection head or the display can be loosened and turned to the desired orientation.
The measuring insert can be withdrawn together with the connection head. In this way,
it is possible to calibrate the entire measuring chain (sensor, transmitter if applicable,
connection cable) on site, without having to disconnect the electrical connection. In addition
this avoids having to open the process, and thus the risk of contamination is minimised.
The thermowell is not piggable.
4.2 Dimensions in mm
■Flow-through housing
alternative Darstellung
14000996.01
1)
1) In the event of replacement,
calculate sensor insertion
length, l1, as follows:
l1 (TR21-B) = U1+ M + 3 mm
For model TR21-B miniature resistance thermometer
4. Design and function

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4. Design and function
11528266.01
For model TR22-B resistance thermometer
2) In the event of replacement, select a resistance thermometer measuring insert model TR11-A.
The corresponding sensor length, l5, is calculated as follows:
Insertion length U1 + neck tube length M (85 mm) + 5 mm pre-load + 10 mm head dimension
14006093.04
Pre-load
2)
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
OD PN 3) 4) Ø D s TL U1M M
10 25 13 1.5 70 6 51 129
15 25 19 1.5 70 9 48 126
20 25 23 1.5 80 11 46 124
25 25 29 1.5 100 18 39 117
32 25 35 1.5 110 18 39 117
40 25 41 1.5 120 18 39 117
50 25 53 1.5 160 30 27 105
65 16 70 2.0 210 30 27 105
80 16 85 2.0 260 45 12 90
100 12.5 104 2.0 310 45 12 90
DIN 11866 series A or metric
3) Maximum operating temperature 150 °C
4) All thermowells of this model series which are exposed to internal pressure and have a nominal diameter (DN) of
> 25 mm are manufactured and tested in accordance with module H of the pressure equipment directive.

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4. Design and function
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
DN (OD) PN 3) 4) Ø D s TL U1M M
8 (13.5) 25 13.5 1.6 64 6 51 129
10 (17.2) 25 17.2 1.6 68 9 48 126
15 (21.3) 25 21.3 1.6 72 11 46 124
20 (26.9) 25 26.9 1.6 110 11 46 124
25 (33.7) 25 33.7 2.0 120 18 39 117
32 (42.4) 25 42.4 2.0 130 18 39 117
40 (48.3) 25 48.3 2.0 130 18 39 117
50 (60.3) 25 60.3 2.0 180 30 27 105
65 (76.1) 16 76.1 2.0 220 30 27 105
80 (88.9) 16 88.9 2.3 260 45 12 90
DIN 11866 series B or ISO tubes
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
OD PN 3) 4) Ø D s TL U1M M
½" 13.8 12.7 1.65 95.2 6 51 129
¾" 13.8 19.05 1.65 101.6 9 48 126
1" 13.8 25.4 1.65 108.0 11 46 124
1 ½" 13.8 38.1 1.65 120.6 18 39 117
2" 13.8 50.8 1.65 146.0 18 39 117
2 ½" 13.8 63.5 1.65 158.8 30 27 105
3" 13.8 76.2 1.65 171.4 30 27 105
4" 13.8 101.6 2.11 209.6 45 12 90
DIN 11866 series C or ASME BPE
3) Maximum operating temperature 150 °C
4) All thermowells of this model series which are exposed to internal pressure and have a nominal diameter (DN) of
> 25 mm are manufactured and tested in accordance with module H of the pressure equipment directive.

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■
Angular housing
(recommended mounting position, see chapter 6 “Commissioning, operation”)
4. Design and function
11528452.01
11575795.02
1) In the event of replacement, calculate
sensor insertion length, l1, as follows:
l1 (TR21-B) = U1+ M + 3 mm
For model TR21-B miniature resistance thermometer
For model TR22-B resistance thermometer 2) In the event of replacement, select a resistance
thermometer measuring insert model TR11-A.
The corresponding sensor length, l5, is calculated
as follows:
Insertion length U1 + neck tube length M (85 mm)
+ 5 mm pre-load + 10 mm head dimension
alternative Darstellung
14000996.01
1)
2)

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4. Design and function
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
DN (OD) PN 3) 4) Ø D s TL L1U1M M
8 (13.5) 25 13.5 1.6 32 55 14 43 121
10 (17.2) 25 17.2 1.6 34 55 16 41 119
15 (21.3) 25 21.3 1.6 36 58 18 39 117
20 (26.9) 25 26.9 1.6 55 81 30 27 105
25 (33.7) 25 33.7 2.0 60 91 30 27 105
32 (42.4) 25 42.4 2.0 65 102 30 27 105
40 (48.3) 25 48.3 2.0 65 108 30 27 105
50 (60.3) 25 60.3 2.0 90 145 45 12 90
65 (76.1) 16 76.1 2.0 110 173 45 12 90
80 (88.9) 16 88.9 2.3 130 203 45 12 90
DIN 11866 series B or ISO tubes
DIN 11866 series A or metric
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
OD PN 3) 4) Ø D s TL L1U1M M
10 25 13 1.5 35 55 14 43 121
15 25 19 1.5 35 55 18 39 117
20 25 23 1.5 40 63 18 39 117
25 25 29 1.5 50 77 30 27 105
32 25 35 1.5 55 87 30 27 105
40 25 41 1.5 60 97 30 27 105
50 25 53 1.5 80 126 30 27 105
65 16 70 2.0 105 165 45 12 90
80 16 85 2.0 130 201 45 12 90
100 12.5 104 2.0 155 241 45 12 90
3) Maximum operating temperature 150 °C
4) All thermowells of this model series which are exposed to internal pressure and have a nominal diameter (DN) of
> 25 mm are manufactured and tested in accordance with module H of the pressure equipment directive.

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DIN 11866 series C or ASME BPE
Nominal
width of
tube
Nominal
pressure
in bar
Outer
diameter
of pipe
Tube wall
thickness
Tube
length
Thermowell
insertion
length
Neck tube
length
TR21-B TR22-B
OD PN 3) 4) Ø D s TL L1U1M M
½" 13.8 12.7 1.65 47.6 71 14 43 121
¾" 13.8 19.05 1.65 50.8 71 18 39 117
1" 13.8 25.4 1.65 54.0 79 18 39 117
1 ½" 13.8 38.1 1.65 60.3 94 30 27 105
2" 13.8 50.8 1.65 73.0 118 30 27 105
2 ½" 13.8 63.5 1.65 79.4 134 45 12 90
3" 13.8 76.2 1.65 85.7 150 45 12 90
4" 13.8 101.6 2.11 104.8 190 45 12 90
3) Maximum operating temperature 150 °C
4) All thermowells of this model series which are exposed to internal pressure and have a nominal diameter (DN) of
> 25 mm are manufactured and tested in accordance with module H of the pressure equipment directive.
4.3 Scope of delivery
Cross-check the scope of delivery with the delivery note.
5. Transport, packaging and storage
5.1 Transport
Check the thermowell for any damage that may have been caused by transport.
Obvious damage must be reported immediately.
5.2 Packaging
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport (e.g. change in
installation site, sending for repair).
5.3 Storage
Permissible conditions at the place of storage:
■Storage temperature: 0 ... 70 °C
■Humidity: 35 ... 85 % r. h. (non-condensing)
WARNING!
Before storing the thermowell (following operation), remove any residual media.
This is of particular importance if the medium is hazardous to health, e.g. caustic,
toxic, carcinogenic, radioactive, etc.
4. Design and function / 5. Transport, packaging and storage

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6. Commissioning, operation
CAUTION!
Before commissioning the thermowell, clean the plant in accordance with the
cleaning specifications.
The thermowell must not be bent or altered in order to mount it.The fitting should be carried
out such that there can be no damage to the thermowell as a result of the plant operation
or the operator. If necessary, one of the thermowell/pipeline mountings mentioned below
(e.g. using a pipe clamp) will be required. In particular, the neck should be secured by
appropriate methods against bending.
Version for orbital welding
In the orbital welding version, the TW61 is directly welded into the pipeline.Weld the
thermowell centered, without axial offset (without irregularities), orbitally in the pipeline.The
weld joint should therefore be made with appropriate care and in line with the applicable
and accredited welding procedures and tested. Likewise, the requirements of the pressure
equipment directive should be followed.
For general information on the design of a hygienic weld, we recommend the following
documents (among others):
■EHEDG guideline 35 - Welding of stainless steel tubing in the food industry
■EHEDG guideline 9 - Welding stainless steel to meet hygienic requirements
■EHEDG guideline 8 - Hygienic equipment design criteria, 7.5
Recommended installation for the angular housing design
Concerning the angular housing design it is recommended, to install the sensor horizontally
and not vertically in the pipeline. Consequently the formation of an air pocket during
sterilization in the cupola is avoided.
6. Commissioning, operation

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7. Maintenance and cleaning
7.1 Maintenance
In general, thermowells are maintenance-free.
We recommend a visual check of the thermowell for leaks and damages at regular intervals.
Make sure that the seal is in perfect condition!
Repairs should only be carried out by the manufacturer or, following prior consultation, by
correspondingly qualified skilled personnel.
7.2 Cleaning
CAUTION!
■Wash or clean the dismounted instrument before returning it, in order to
protect personnel and the environment from exposure to residual media.
■
Residual media in the dismounted thermowell can result in a risk to persons, the
environment and equipment. Sufficient precautionary measures must be taken.
For information on returning the instrument see chapter 9.2 “Return”.
7. Maintenance and cleaning

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8. Faults
8. Faults
Faults Causes Measures
Not possible
to insert the
temperature
sensor into the
thermowell
Foreign bodies in the thermowell Remove foreign bodies
Damaged or contaminated fastening thread
on thermowell or temperature sensor
Clean the threads
Damaged fastening thread on thermowell or
temperature sensor
Return the thermowell
(see chapter 9.2 “Return”)
Thermowell or sensor has been bent or
damaged during installation
Return for repair
Escape of process
medium
Where there is an escape of process medium
at the process connection, errors in mounting
or faulty seals can be the cause.
Check the seal and also
check the tightening torques
Should process media escape at the interface
between the thermowell and the temperature
sensor or at the temperature sensor itself,
safe operation of the plant can no longer be
guaranteed
Remove the thermowell
from operation and contact
WIKA
CAUTION!
If faults cannot be eliminated by means of the measures listed above, shut
down the instrument immediately, and ensure that pressure and/or signal are no
longer present, and secure the instrument from being put back into operation
inadvertently.
In this case, contact the manufacturer.
If a return is needed, follow the instructions given in chapter 9.2 “Return”.

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9. Dismounting, return and disposal
WARNING!
Residual media in the dismounted thermowell can result in a risk to persons, the
environment and equipment. Sufficient precautionary measures must be taken.
9.1 Dismounting
WARNING!
Risk of burns!
Let the instrument cool down sufficiently before dismounting! During dismounting
there is a risk of dangerously hot pressure media escaping.
Only disconnect thermowells once the system has been depressurised!
9.2 Return
WARNING!
Absolutely observe the following when shipping the instrument:
All instruments delivered to WIKA must be free from any kind of hazardous
substances (acids, leachate, solutions, etc.).
When returning the instrument, use the original packaging or a suitable transport package.
To avoid damage:
1. Wrap the instrument in an antistatic plastic film.
2. Place the instrument, along with shock-absorbent material, in the packaging.
Place shock-absorbent material evenly on all sides of the shipping box.
3. If possible, place a bag containing a desiccant inside the packaging.
4. 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.
9.3 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.
9. Dismounting, return and disposal

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Appendix: EU declaration of conformity

WIKA Betriebsanleitung Schutzrohr, Typ TW61
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Inhalt
Inhalt
Konformitätserklärungen finden Sie online unter www.wika.de.
1. Allgemeines 20
2. Sicherheit 21
3. Technische Daten 23
4. Aufbau und Funktion 24
5. Transport, Verpackung und Lagerung 29
6. Inbetriebnahme, Betrieb 30
7. Wartung und Reinigung 31
8. Störungen 32
9. Demontage, Rücksendung und Entsorgung 33
Anlage: EU-Konformitätserklärung 34

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WIKA Betriebsanleitung Schutzrohr, Typ TW61
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1. Allgemeines
■Die in der Betriebsanleitung beschriebenen Schutzrohre werden nach dem aktuellen
Stand der Technik gefertigt. Alle Komponenten unterliegen während der Fertigung stren-
gen Qualitäts- und Umweltkriterien. Unsere Managementsysteme sind nach ISO 9001
und ISO 14001 zertifiziert.
■Diese Betriebsanleitung gibt wichtige Hinweise zum Umgang mit dem Schutzrohr.
Voraussetzung für sicheres Arbeiten ist die Einhaltung aller angegebenen
Sicherheitshinweise und Handlungsanweisungen.
■Die für den Einsatzbereich des Schutzrohres geltenden örtlichen Unfallverhütungsvor-
schriften und allgemeinen Sicherheitsbestimmungen einhalten.
■Die Betriebsanleitung ist Produktbestandteil und muss in unmittelbarer Nähe des
Schutzrohres für das Fachpersonal jederzeit zugänglich aufbewahrt werden.
■Das Fachpersonal muss die Betriebsanleitung vor Beginn aller Arbeiten sorgfältig durch-
gelesen und verstanden haben.
■Die Haftung des Herstellers erlischt bei Schäden durch bestimmungswidrige Verwen-
dung, Nichtbeachten dieser Betriebsanleitung, Einsatz ungenügend qualifizierten
Fachpersonals sowie eigenmächtiger Veränderung am Schutzrohr.
■Es gelten die allgemeinen Geschäftsbedingungen in den Verkaufsunterlagen.
■Technische Änderungen vorbehalten.
■Weitere Informationen:
- Internet-Adresse: www.wika.de / www.wika.com
- zugehöriges Datenblatt: TW 95.61
- Anwendungsberater: Tel.: [phone]
Fax: [phone]
[e-mail]
Symbolerklärung
WARNUNG!
… weist auf eine möglicherweise gefährliche Situation hin, die zum Tod oder zu
schweren Verletzungen führen kann, wenn sie nicht gemieden wird.
VORSICHT!
… weist auf eine möglicherweise gefährliche Situation hin, die zu geringfügigen
oder leichten Verletzungen bzw. Sach- und Umweltschäden führen kann, wenn
sie nicht gemieden wird.
Information
… hebt nützliche Tipps und Empfehlungen sowie Informationen für einen effizi-
enten und störungsfreien Betrieb hervor.
1. Allgemeines