KROHNE TRA-TCA User Manual

Handbook

OPTITEMP TRA/TCA PLUS

OPTITEMP TRA/TCA PLUSOPTITEMP TRA/TCA PLUS

Industrial thermometers for advanced requirements with replaceable measuring inserts.

HandbookHandbook

: IMPRINT :::::::::::::::::::::::::::::::::::::::

OPTITEMP TRA/TCA PLUS

Subject to change without notice.

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CONTENTS

1 Safety instructions 6

1.1 Intended use ..................................................................................................................... 6

1.2 Approvals and certifications............................................................................................. 6

1.2.1 CE ............................................................................................................................................ 6

1.2.2 ATEX ........................................................................................................................................6

1.3 Safety instructions from the manufacturer ..................................................................... 7

1.3.1 Copyright and data protection ................................................................................................ 7

1.3.2 Disclaimer ............................................................................................................................... 7

1.3.3 Product liability and warranty ................................................................................................ 8

1.3.4 Information concerning the documentation........................................................................... 8

1.3.5 Warnings and symbols used................................................................................................... 9

1.4 Safety instructions for the operator................................................................................. 9

2 Device description 10

2.1 Scope of delivery............................................................................................................. 10

2.2 Device description .......................................................................................................... 11

2.2.1 Design of industrial thermometers for advanced requirements......................................... 11

2.2.2 Types of connection heads.................................................................................................... 12

2.2.3 Measuring insert designs and measuring insert length...................................................... 14

2.2.4 Types of temperature transmitters ...................................................................................... 15

2.2.5 Neck tubes ............................................................................................................................ 17

2.2.6 Thermowells and thermowell tips........................................................................................ 18

2.3 Process connections and areas of application .............................................................. 19

2.3.1 Weld-in thermometer ........................................................................................................... 19

2.3.2 Threaded thermometer ........................................................................................................ 19

2.3.3 Flange thermometer............................................................................................................. 20

2.4 Overview of available versions ....................................................................................... 21

2.5 Nameplate ...................................................................................................................... 25

3 Installation 26

3.1 General notes on installation ......................................................................................... 26

3.2 Storage ........................................................................................................................... 26

3.3 Transport ........................................................................................................................ 26

3.4 Proper installation.......................................................................................................... 27

3.4.1 Possible installations............................................................................................................ 27

3.4.2 Other installation requirements........................................................................................... 28

3.5 Load limits ...................................................................................................................... 29

3.5.1 Typical load types.................................................................................................................. 29

3.5.2 Vibration load ........................................................................................................................ 32

3.5.3 Temperature load ................................................................................................................. 32

3.6 Installation notes on the individual device classes........................................................ 34

3.6.1 Weld-in thermometer ........................................................................................................... 34

3.6.2 Threaded thermometer ........................................................................................................ 35

3.6.3 Flange thermometer............................................................................................................. 36

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CONTENTS

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4 Electrical connections 37

4.1 Safety instructions.......................................................................................................... 37

4.2 Grounding ....................................................................................................................... 37

4.3 Protection category ........................................................................................................37

4.4 Power supply .................................................................................................................. 37

5 Operation 38

5.1 Start-up........................................................................................................................... 38

5.2 Normal operation ...........................................................................................................38

5.3 Faults and damage: reason and remedies .................................................................... 38

6 Service 40

6.1 Replacing the electronics............................................................................................... 40

6.2 Cleaning and maintenance............................................................................................. 40

6.3 Spare parts availability...................................................................................................40

6.4 Availability of services .................................................................................................... 40

6.5 Returning the device to the manufacturer..................................................................... 40

6.5.1 General information.............................................................................................................. 40

6.5.2 Form (for copying) to accompany a returned device............................................................ 42

6.6 Disposal .......................................................................................................................... 42

7 Technical data 43

7.1 Measuring principle........................................................................................................43

7.1.1 Resistance thermometer...................................................................................................... 43

7.1.2 Thermocouples ..................................................................................................................... 44

7.2 Technical data tables ..................................................................................................... 45

7.3 Dimensions ..................................................................................................................... 49

7.3.1 Cable gland ........................................................................................................................... 49

7.3.2 Neck tubes ............................................................................................................................ 50

7.3.3 Lengths of thermowells........................................................................................................ 51

7.3.4 Thermowells: Diameter, wall thickness, tips....................................................................... 60

7.3.5 Sleeves .................................................................................................................................. 61

7.3.6 Flanges.................................................................................................................................. 62

7.4 Measuring accuracy ....................................................................................................... 64

7.5 Process connections ...................................................................................................... 65

7.6 Measuring range and permitted load ............................................................................ 66

7.6.1 Operating limits for multipart, welded thermowells ........................................................... 66

7.6.2 Operating limits for one-piece, straight bar stock thermowells ......................................... 67

7.6.3 Operating limits for one-piece, conical bar stock thermowells .......................................... 68

7.6.4 Operating limits for one-piece, reduced bar stock thermowells ........................................ 69

7.6.5 Operating limits for conical weld-in bar stock thermowells ............................................... 71

7.6.6 Operating limits for straight, bar stock weld-in thermowells ............................................. 71

7.7 Permissible temperatures ............................................................................................. 72

7.7.1 Connection head ................................................................................................................... 72

7.7.2 Unloaded thermowell and immersion tubes........................................................................ 72

7.8 Sensor response times .................................................................................................. 73

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CONTENTS

8 Appendix 74

8.1 Technical legislation in effect ........................................................................................ 74

9 Notes 75

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1 SAFETY INSTRUCTIONS

1.1 Intended use

DANGER!

ATEX approval is pending. Until such approval has been granted, do not install or operate the industrial thermometer for advanced requirements in potentially hazardous areas. Otherwise you could cause an explosion that could have fatal consequences.

CAUTION!

Responsibility for the use of the measurement devices with regard to suitability, intended use and corrosion resistance of the used materials against the measured fluid lies solely with the operator.

INFORMATION!

The manufacturer is not liable for any damage resulting from improper use or use for other than the intended purpose.

The thermometer for advanced requirements is used to measure the temperature of gases, liquids, vapour and solids in industrial applications. The devices are particularly suited to the measurement of

OPTITEMP TRA/TCA PLUS

• liquids with low viscosity,

• water and chemicals with low corrosiveness,

• saturated steam and superheated steam.

1.2 Approvals and certifications

1.2.1 CE

Article 1, section 2.1.4 of the Pressure Equipment Directive 97/23/EC does not apply to thermometers for advanced requirements. For this reason, neither a conformity assessment nor a CE marking is possible. The EC directives applicable to temperature transmitters are contained in the corresponding transmitter documentation.

1.2.2 ATEX

ATEX approval is pending. As soon as this is available, you have the option of ordering Exapproval according to ATEX. The relevant Ex handbook contains more detailed information.

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1.3 Safety instructions from the manufacturer

1.3.1 Copyright and data protection

The contents of this document have been created with great care. Nevertheless, we provide no guarantee that the contents are correct, complete or up-to-date.

The contents and works in this document are subject to copyright. Contributions from third parties are identified as such. Reproduction, processing, dissemination and any type of use beyond what is permitted under copyright requires written authorisation from the respective author and/or the manufacturer.

The manufacturer tries always to observe the copyrights of others, and to draw on works created in-house or works in the public domain.

The collection of personal data (such as names, street addresses or e-mail addresses) in the manufacturer's documents is always on a voluntary basis whenever possible. Whenever feasible, it is always possible to make use of the offerings and services without providing any personal data.

SAFETY INSTRUCTIONS 1

We draw your attention to the fact that data transmission over the Internet (e.g. when communicating by e-mail) may involve gaps in security. It is not possible to protect such data completely against access by third parties.

We hereby expressly prohibit the use of the contact data published as part of our duty to publish an imprint for the purpose of sending us any advertising or informational materials that we have not expressly requested.

1.3.2 Disclaimer

The manufacturer will not be liable for any damage of any kind by using its product, including, but not limited to direct, indirect or incidental and consequential damages.

This disclaimer does not apply in case the manufacturer has acted on purpose or with gross negligence. In the event any applicable law does not allow such limitations on implied warranties or the exclusion of limitation of certain damages, you may, if such law applies to you, not be subject to some or all of the above disclaimer, exclusions or limitations.

Any product purchased from the manufacturer is warranted in accordance with the relevant product documentation and our Terms and Conditions of Sale.

The manufacturer reserves the right to alter the content of its documents, including this disclaimer in any way, at any time, for any reason, without prior notification, and will not be liable in any way for possible consequences of such changes.

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1 SAFETY INSTRUCTIONS

1.3.3 Product liability and warranty

The operator shall bear responsibility for the suitability of the device for the specific purpose. The manufacturer accepts no liability for the consequences of misuse by the operator. Improper installation and operation of the devices (systems) will cause the warranty to be void. The respective "Standard Terms and Conditions" which form the basis for the sales contract shall also apply.

1.3.4 Information concerning the documentation

To prevent any injury to the user or damage to the device it is essential that you read the information in this document and observe applicable national standards, safety requirements and accident prevention regulations.

If this document is not in your native language and if you have any problems understanding the text, we advise you to contact your local office for assistance. The manufacturer can not accept responsibility for any damage or injury caused by misunderstanding of the information in this document.

This document is provided to help you establish operating conditions, which will permit safe and efficient use of this device. Special considerations and precautions are also described in the document, which appear in the form of underneath icons.

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1.3.5 Warnings and symbols used

Safety warnings are indicated by the following symbols.

DANGER!

This information refers to the immediate danger when working with electricity.

DANGER!

This warning refers to the immediate danger of burns caused by heat or hot surfaces.

DANGER!

This warning refers to the immediate danger when using this device in a hazardous atmosphere.

DANGER!

These warnings must be observed without fail. Even partial disregard of this warning can lead to serious health problems and even death. There is also the risk of seriously damaging the device or parts of the operator's plant.

SAFETY INSTRUCTIONS 1

WARNING!

Disregarding this safety warning, even if only in part, poses the risk of serious health problems. There is also the risk of damaging the device or parts of the operator's plant.

CAUTION!

Disregarding these instructions can result in damage to the device or to parts of the operator's plant.

INFORMATION!

These instructions contain important information for the handling of the device.

LEGAL NOTICE!

This note contains information on statutory directives and standards.

• HANDLING

HANDLING

HANDLINGHANDLING

This symbol designates all instructions for actions to be carried out by the operator in the specified sequence.

i RESULT

RESULT

RESULTRESULT This symbol refers to all important consequences of the previous actions.

1.4 Safety instructions for the operator

WARNING!

In general, devices from the manufacturer may only be installed, commissioned, operated and maintained by properly trained and authorized personnel. This document is provided to help you establish operating conditions, which will permit safe and efficient use of this device.

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2 DEVICE DESCRIPTION

2.1 Scope of delivery

INFORMATION!

Inspect the cartons carefully for damages or signs of rough handling. Report damage to the carrier and to the local office of the manufacturer.

INFORMATION!

Do a check of the packing list to make sure that you have all the elements given in the order.

INFORMATION!

Look at the device nameplate to ensure that the device is delivered according to your order.

The manufacturer delivers all industrial thermometersfor advanced requirements with the relevant technical documentation. The following table illustrates which thermometer for advanced requirements is delivered with which documentation (HB = Handbook):

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Scope of order Hb. for

thermometer s

Thermometer without transmitter

Thermometer with transmitter

Ex-thermometer without transmitter

Ex-thermometer with transmitter

Ex-hb. for thermometer s

X - X - -

X - X - X

X X X X -

X X X X X

Hb. for measuring inserts

Ex-hb. for measuring inserts

Hb. for transmitters

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DEVICE DESCRIPTION 2

2.2 Device description

2.2.1 Design of industrial thermometers for advanced requirements

INFORMATION!

In this documentation, the name "Industrial thermometer for advanced requirements" refers to thermometer assemblies with multipart, welded thermowells as well as those with one-piece bar stock thermowells.

Figure 2-1: Design of an industrial thermometer for advanced requirements

1 Connection head cover 2 Measuring insert 3 Cable gland M20 x 1.5 (only available if the process connection has the dimensions M24 x 1.5, otherwise there is a blind

plug here instead)

4 Neck tube 5 Connection head

All thermometers for advanced requirements consist of a thermowell with process connection, a neck tube and a connection head. The connection head and the thermowell are largely thermally decoupled by way of the neck tube. The neck tubes for thermometers with advanced requirements are available with two different thread types:

• As per DIN: M24 x 1.5 mm

• As per ASME/ANSI: ½"NPT

The connection head is screwed onto the neck tube using the thread. The M24 x 1.5 thread makes it possible to align the connection head so that the cable gland always faces in the desired direction (during assembly, the connection head is aligned first before screwing in the thread

using hex nut). In contrast, the alignment of the connection head with ½" NPT threads is only

possible to a limited extent, depending on the type of neck tube.

You can insert either a measuring insert with RTD (OPTITEMP TR 100) or with thermocouple (OPTITEMP TC 100) into the thermometer assembly. Both measuring inserts are available in three different versions (for more information see refer to

measuring insert length

(for more information see refer to

on page 14), the manufacturer also offers a variety of thermowell tips

Thermowells and thermowell tips

Measuring insert designs and

on page 18).

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2 DEVICE DESCRIPTION

2.2.2 Types of connection heads

A connection head protects the terminals and the temperature transmitter from environmental effects (e. g. dirt or dust). The cable gland for the connection head on the industrial thermometer for advanced requirements depends on the process connection for the connection head

(M20 x 1.5 for process connections with the dimensions M24 x 1.5 and ½" NPT for all process connections with ½" NPT threads, for more information see refer to

There are oil-resistant rubber seals on the covers of all connection heads (can be used up to

100°C / 212°F ambient temperature). The connection heads are available in the following

materials:

• Die-cast aluminium for standard applications (Types: BA, BUZ-T/S/H/HW, BGK and AXD). The

surface of these connection heads features a 70µm thick powder coating made of polyester.

• Stainless steel (type BVA), especially for the pharmaceutical and food and beverage industries

• Plastic (type BBK)

The type "BUZ-HW" is the only connection head with an integrated, head-mounted display fed by the 4...20 mA current loop.

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Cable gland

on page 49).

INFORMATION!

The inside dimensions of the connection heads depicted here comply with DIN 43735.

DANGER!

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Connection heads available

BA (aluminium, IP65)

BA (aluminium, IP65) BUZ-T (aluminium, IP65)

BA (aluminium, IP65)BA (aluminium, IP65)

BUZ-H (aluminium IP65)

BUZ-H (aluminium IP65) BUZ-HW (aluminium, IP65)

BUZ-H (aluminium IP65)BUZ-H (aluminium IP65)

DEVICE DESCRIPTION 2

BUZ-T (aluminium, IP65) BUZ-S (aluminium, IP65)

BUZ-T (aluminium, IP65)BUZ-T (aluminium, IP65)

BUZ-HW (aluminium, IP65) BGK (aluminium, IP67)

BUZ-HW (aluminium, IP65)BUZ-HW (aluminium, IP65)

BUZ-S (aluminium, IP65)

BUZ-S (aluminium, IP65)BUZ-S (aluminium, IP65)

BGK (aluminium, IP67)

BGK (aluminium, IP67)BGK (aluminium, IP67)

BBK (PA, IP54)

BBK (PA, IP54) BVA (VA, IP65)

BBK (PA, IP54)BBK (PA, IP54)

BVA (VA, IP65) AXD (aluminium, IP68)

BVA (VA, IP65)BVA (VA, IP65)

AXD (aluminium, IP68)

AXD (aluminium, IP68)AXD (aluminium, IP68)

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2 DEVICE DESCRIPTION

2.2.3 Measuring insert designs and measuring insert length

INFORMATION!

The versions, dimensions and other construction features of the measuring inserts are standardised in DIN 43735.

The replaceable measuring insert contains the temperature sensor, which may be either a Pt100 RTD or a thermocouple. The measuring insert is pushed through the open connection head into the thermometer assembly and attached using two spring loaded M4 screws (this guarantees that the tip of the measuring insert is in constant contact with the bottom of the thermowell). The following versions of measuring insert are available:

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Figure 2-2: Available measuring insert versions

1 Measuring insert with flying wires 2 Measuring insert with ceramic terminal block 3 Measuring insert with head-mounted transmitter

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One distinguishing dimension of the measuring insert is its length. The length is measured from the bottom edge of the base to the tip of the immersion tube ("a" in the drawing below):

Figure 2-3: Measuring insert length

The selection of the right measuring insert depends on the conditions of use:

• A measuring insert with a thermocouple is better suited to heavy thermal or mechanical loads.

• When increased accuracy is required, a measuring insert with a resistance thermometer is

better suited for temperatures up to +500°C / +932°F and in exceptional cases up to +600°C/ +1112°F.

DEVICE DESCRIPTION 2

INFORMATION!

Consult the handbook "OPTITEMP TR/TC 100" for more detailed information on the measuring inserts.

2.2.4 Types of temperature transmitters

Electrical thermometers have just one, weak, interference-prone output signal. If this signal has to travel a great distance or if a standard signal of 4...20 mA is required, use of a temperature transmitter is recommended:

INFORMATION!

The manufacturer cannot make any general statement as to the distance from which the use of a temperature transmitter is necessary as it depends on the specific interference associated with the installation site. The operator alone is responsible for this decision.

There are two types of temperature transmitters:

• Head-mounted transmitter: Located on the measuring insert and thus in the connection head of the thermometer during operation, recognisable by the "C" in the product name (e.g.TT10C)

• Rail-mounted transmitter: Located in the control cabinet or field housing, recognisable by the "R" in the product name (e. g. TT 11 R); they are usually used when the temperature in the connection head does not allow for the use of a head-mounted transmitter

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2 DEVICE DESCRIPTION

Figure 2-4: Example of a head-mounted transmitter

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Figure 2-5: Example of a rail-mounted transmitter

Head-mounted and rail-mounted transmitters both convert the temperature sensor's small signal into a standardised output signal of 4...20 mA, not susceptible to interference, or into a digital signal. The output signal depends on the type of temperature transmitter. The following three 2-wire technology options are currently available:

• 4...20 mA

• 4...20 mA with HART

• Profibus-PA

You can parameterise almost any temperature transmitter using a PC and a computer program. The only exceptions are the TT 10 C/R and TT 11 C/R versions, whose measuring ranges must be set using solder bridges. The following temperature transmitters are currently available:

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DEVICE DESCRIPTION 2

Available in both head-mounted and railmounted version

TT 10 C/R (analogue, standard, 4...20 mA) TT 31 R (3-wire circuit, 0/4...20 mA, outputs:

TT 11 C/R (analogue, 3- or 4-wire circuit, output:

0...10 VDC)

TT 20 C/R (analogue, 4...20 mA)

TT 30 C/R (digital, 4...20 mA, standard)

TT 40 C/R (digital, 4...20 mA, precise)

TT 50 C/R (digital, 4...20 mA, HART®)

TT 51 C/R (digital, 4...20 mA, HART®, SIL2)

TT 60 C/R (digital, Profibus-PA)

INFORMATION!

Consult the relevant transmitter handbook for more detailed information on the temperature transmitters.

2.2.5 Neck tubes

The neck tube connects the process connection (i.e. screw socket or flange) to the connection head. Its function is to largely thermally decouple the connection head so that it and any existing temperature transmitter do not heat up too much. Depending on both the standard and the version of the thermowell, there are different threads:

Only available in rail-mounted version

0/1...5 VDC, 0/2...10 VDC)

TT 32 R (4-wire circuit, 0/4...20 mA, outputs: 0/1...5 VDC, 0/2...10 VDC)

INFORMATION!

The thread for the connection head is the top thread in the following drawing. The dimension "a" denotes the length of the neck tube.

Figure 2-6: Thread types on neck tubes

1 DIN neck tube, process connection with metric thread (left) and NPT thread (right) 2 DIN neck tube, process connection with union nut 3 ASME neck tube with Nipple-Nipple (NN) connection 4 ASME neck tube with Nipple-Union-Nipple (NUN) connection

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2 DEVICE DESCRIPTION

The neck tubes for industrial thermometers for advanced requirements are made of stainless steel.

INFORMATION!

The neck tube material may differ from the thermowell material.

The standard neck tube length of a DIN neck tube is 165 mm / 6.5", that of a NUN connection

with ½" NPT thread is 152 mm / 6". Other neck tube lengths are available on request.

2.2.6 Thermowells and thermowell tips

The thermowell is designed to prevent external loads (e. g. static pressure, flowing and aggressive media) from damaging the measuring insert. As a rule, thermowells are made of the same material as the system in which the measuring is done. In terms of the material and design, we can distinguish between two types of thermowells:

• Multipart, welded thermowells

• One-piece bar stock thermowells

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This handbook covers thermometers for advanced requirements such as high pressure and high flow velocities. For this reason, one-piece thermowells manufactured using bar stock are used in addition to multipart welded thermowells.

INFORMATION!

The manufacturer checks all of the thermowells for leaks. An optional certified pressure test is available for a fee.

Thermowells and thermowell tips in different versions are manufactured for the industrial thermometers for advanced requirements. For more information refer to

Diameter, wall thickness, tips

on page 60.

Thermowells:

All thermowells require a measuring insert with a diameter of 6 mm / 0.24".

Thermowell/thermowell tip Ø Similarity to

standard

[mm] ["]

Straight, multipart, welded 9 / 10 / 11 /12 0.35 / 0.39 / 0.43 /

0.47

Straight, one-piece 17 / 23 0.67 / 0.91 DIN 43772, Form 6, 7

16 / 19 0.63 / 0.75 ASME

Conical, one-piece 24 to 12.5

0.94 to 0.49

16 to 13 0.63 to 0.51 ASME

19 to 16 0.75 to 0.63

22 to 16 0.87 to 0.63

25 to 19 0.98 to 0.75

DIN 43772, Form 5 and 8

and 9

DIN 43772, Form 4 and 4F

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Thermowell/thermowell tip Ø Similarity to

[mm] ["]

Reduced tip, one-piece 12 to 9 0.47 to 0.35 ASME

16 to 13 0.63 to 0.51

19 to 13 0.75 to 0.51

19 to 16 0.75 to 0.63

22 to 13 0.87 to 0.51

23 to 13 0.91 to 0.51

INFORMATION!

Both the reduced and the conical tip feature a shorter response time than a straight thermowell. However, compared to the reduced tip, the conical tip withstands higher pressures.

2.3 Process connections and areas of application

2.3.1 Weld-in thermometer

DEVICE DESCRIPTION 2

standard

Weld-in thermometers for advanced requirements are always the first choice when you want to measure temperatures in quickly flowing product under high pressure. Compared to threaded thermometers for advanced requirements, weld-in thermometers are more resilient as they are not weakened by the notch effect of a thread on the joint.

A typical area of application for weld-in thermometers with advanced requirements is the measurement of temperature in process vapour lines and cooling water lines, especially in power plants.

2.3.2 Threaded thermometer

Threaded thermometers with separate neck tubes are particularly well suited to measuring tasks in process technology or machine building and plant engineering. In this case, screwing into the pipelines and tanks is the most common process adaption.

The neck tube increases the distance between the process connection and the connection head so that the latter does not overheat. It also makes it possible to install connection heads outside of the insulation of pipelines and tanks.

The threaded thermometers for advanced requirements are offered with three different thermowell shapes forms which are similar to or comply with DIN and ASME standards. These include a straight thermowell, a conical thermowell and a reduced thermowell. G or NPT thread variants are available.

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2 DEVICE DESCRIPTION

2.3.3 Flange thermometer

All of the flange thermometers for advanced requirements available from the manufacturer feature a separate neck tube to thermally decouple the process connection and connection head. They are typically used in the mid and upper temperature range in industrial applications (up

to +600°C / +1112°F).

Flange thermometers for advanced requirements are predominantly suited to measuring the temperature in the chemical and petrochemical industries (particularly for pipelines, tanks and reactors). This area of application opens up because optional coating of the surface is possible. According to the requirements for chemical resistance, the manufacturer can coat the flange thermometer with Teflon, PTFE or a customer-specific material.

When it comes to flanges, you can choose between DIN and ASME flanges. The surface roughness of the flange raised face is R

= 3.2...6.3 μm (ASME flanges).

As with the threaded thermometers for advanced requirements, the flange thermometers for advanced requirements also give you the choice between different thermowell forms which are similar to or comply with valid DIN and ASME standards. Also included are a straight thermowell, a conical thermowell and a reduced thermowell.

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= 12.5...50 μm (DIN EN flanges) or

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2.4 Overview of available versions

INFORMATION!

The beginning of the product name refers to the type of sensor in the measuring insert:

•

TRA: Thermometer with Pt100 RTD

•

TCA: Thermometer with thermocouple

Thermometer with separate neck tube according to DIN 43722

Thermometer with separate neck tube according to DIN 43722Thermometer with separate neck tube according to DIN 43722

Threaded thermometer

TRA / TCA-S34

TRA / TCA-S34 TRA / TCA-S34

TRA / TCA-S34TRA / TCA-S34

TRA / TCA-S34 TRA / TCA-TS32

TRA / TCA-S34TRA / TCA-S34

DEVICE DESCRIPTION 2

TRA / TCA-TS32

TRA / TCA-TS32TRA / TCA-TS32

Connection head with DIN neck tube, no thermowell

TRA / TCA-TS35

TRA / TCA-TS35 TRA / TCA-TS36

TRA / TCA-TS35TRA / TCA-TS35

Multipart thermowell, neck tube with union nut, similar to Form 8

Connection head with DIN neck tube and union nut, no thermowell

TRA / TCA-TS36 TRA / TCA-TS37

TRA / TCA-TS36TRA / TCA-TS36

One-piece thermowell, neck tube with external thread, similar to Form 7

Multipart thermowell, neck tube with external thread, similar to Form 5

TRA / TCA-TS37

TRA / TCA-TS37TRA / TCA-TS37

One-piece thermowell, neck tube with union nut, similar to Form 9

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2 DEVICE DESCRIPTION

Flange and weld-in thermometers

TRA / TCA-TF33

TRA / TCA-TF33 TRA / TCA-TF31

TRA / TCA-TF33TRA / TCA-TF33

OPTITEMP TRA/TCA PLUS

TRA / TCA-TF31 TRA / TCA-T30

TRA / TCA-TF31TRA / TCA-TF31

TRA / TCA-T30

TRA / TCA-T30TRA / TCA-T30

Multipart thermowell, neck tube with external thread

Thermometer with separate neck tube according to ASME standard

Thermometer with separate neck tube according to ASME standardThermometer with separate neck tube according to ASME standard

One-piece thermowell, neck tube with external thread, similar to Form 4F

One-piece thermowell, neck tube with external thread, similar to Form 4

Threaded thermometer

TRA / TCA-S50 (NN neck tube)

TRA / TCA-S50 (NN neck tube) TRA / TCA-S50 (NUN neck tube)

TRA / TCA-S50 (NN neck tube)TRA / TCA-S50 (NN neck tube)

TRA / TCA-S50 (NUN neck tube)

TRA / TCA-S50 (NUN neck tube)TRA / TCA-S50 (NUN neck tube)

Head with NN neck tube, no thermowell

Head with NUN neck tube, no thermowell

www.krohne.com 01/2012 - 4000630301 - MA OPTITEMP TRA/TCA Plus R01

OPTITEMP TRA/TCA PLUS

Threaded thermometer

TRA / TCA-TS52

TRA / TCA-TS52 TRA / TCA-TS53

TRA / TCA-TS52TRA / TCA-TS52

DEVICE DESCRIPTION 2

TRA / TCA-TS53 TRA / TCA-TS54

TRA / TCA-TS53TRA / TCA-TS53

TRA / TCA-TS54

TRA / TCA-TS54TRA / TCA-TS54

Screw-in thermowell, one-piece, straight

Screw-in thermowell, one-piece, conical

Flange thermometer

TRA / TCA-TF55

TRA / TCA-TF55 TRA / TCA-TF56

TRA / TCA-TF55TRA / TCA-TF55

TRA / TCA-TF56 TRA / TCA-TF57

TRA / TCA-TF56TRA / TCA-TF56

Screw-in thermowell, one-piece, reduced

TRA / TCA-TF57

TRA / TCA-TF57TRA / TCA-TF57

Flange thermowell, one-piece, straight

Flange thermowell, one-piece, conical

www.krohne.com01/2012 - 4000630301 - MA OPTITEMP TRA/TCA Plus R01

Flange thermowell, one-piece, reduced

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