7MC1006-2DE1. - Siemens

SITRANS T

Explosion protected temperature

sensor

Operating Instructions

Type *X-****-* or *MX-***-*

with the order number 7MC1*** or 7MC2***

10/2006

A5E01001363-01

General information

Marking of the degree of

protection

Range of uses

Installation

Assembly and disassembly

Commissioning

Maintenance

Appendix 1

Appendix 2

Safety notes

This manual contains instructions which must be complied with for the sake of your personal safety and also to

prevent damage to property. The notes concerning your personal safety are indicated with a warning triangle; notes

solely concerning damage to property are given without a warning triangle. Depending on the level of danger, the

warnings are given in decreasing order, as follows:

Danger

means that death or severe injury will result if the corresponding precautions are not taken.

Warning

means that death or severe injury may result if the corresponding precautions are not taken.

Caution

with a warning triangle means that slight injury may result if the corresponding precautions are not taken.

Caution

without a warning triangle means that damage to property may result if the corresponding precautions are not

taken.

Notice

means that an undesirable event or condition may result if the corresponding note is not observed.

If more than one level of danger applies, warnings for the highest level will always be given. If a warning against

personal injury is given with a warning triangle, it may contain an additional warning against damage to property.

Qualified personnel

This device/system may only be installed and operated together with this document. Commissioning and operation of

devices/systems are to be carried out only by qualified personnel. Qualified personnel is defined within the context of

the safety information contained in this document as persons who have been authorized to operate, ground or mark

devices, systems and electrical circuits in accordance with accepted technical safety standards.

Correct usage

Observe the following:

Warning

The device may only be used in the cases prescribed in the catalog and in the technical description and only in

conjunction with third-party devices and components recommended or approved by Siemens. Proper shipping,

storage, installation, operation and maintenance of the product are essential for ensuring correct and safe

operation.

Trademarks

All names marked with the ® symbol are registered trademarks of Siemens AG. Other names in this document may

be trademarks whose use by a third party for their own purposes may impinge on the rights of the owner.

Exclusion of liability

We have checked to ensure that the information contained in this document corresponds to the characteristics of the

actual hardware and software. Nevertheless, we cannot assume responsibility for any deviations that may arise. The

information contained in this document is checked regularly for errors. Necessary corrections made to the text appear

in later editions.

Siemens AG

Automation and Drives

Postfach 48 48

D-90437 NÜRNBERG

GERMANY

A5E01001363-01

Edition 11/2006

Subject to changes

SITRANS T - Explosion protected temperature sensor

Operating Instructions, 10/2006, A5E01001363-01 iii

Table of contents

1 General information ................................................................................................................................... 1

1.1 Intended use ................................................................................................................................. 1

1.2 Type marking ................................................................................................................................ 1

1.2.1 Type marking for versions of device group II................................................................................ 1

1.2.2 Type marking for measuring elements.......................................................................................... 2

1.3 Protection type .............................................................................................................................. 2

2 Marking of the degree of protection ........................................................................................................... 2

3 Range of uses ........................................................................................................................................... 3

3.1 Description .................................................................................................................................... 3

3.2 Parameters.................................................................................................................................... 3

3.2.1 Type *X-*D**-* or measuring element type *MX-D**-*.................................................................. 3

3.2.2 Type *X-*E**-*, type *X-*F**-* or measuring elements type *MX-E**-*, type *MX-F**-*.............. 4

3.2.3 Thermometer type *X-*P**-*.......................................................................................................... 4

3.2.4 Thermometer type *X-*O**-*, measuring element type *MX-O**-* ............................................... 4

3.3 Thermal parameters...................................................................................................................... 4

3.3.1 Range of ambient temperature and temperature class ................................................................ 4

3.3.2 Process temperature..................................................................................................................... 5

3.4 Requirements and conditions for safe application........................................................................ 5

4 Installation ................................................................................................................................................. 6

5 Assembly and disassembly........................................................................................................................ 6

6 Commissioning .......................................................................................................................................... 6

7 Maintenance .............................................................................................................................................. 6

8 Appendix 1................................................................................................................................................. 7

9 Appendix 2................................................................................................................................................. 8

General information

SITRANS T - Explosion protected temperature sensor

Operating Instructions, 10/2006, A5E01001363-01 1

1 General information

1.1 Product information on the Internet

Manual is available on the Internet on the Siemens homepage.

Instructions and Manuals

http://www.siemens.com/processinstrumentation/documentation

1.2 Intended use

Temperature sensors, such as resistance thermometers and thermocouples, are used to measure temperatures

in many industrial plants and test devices where explosion protected sensor units are used to convert

temperature information into electrical signals.

1.3 Type marking

The type marking is *X-****-*, or *MX-***-* and includes the markings listed in the following tables.

1.3.1 Type marking for versions of device group II

Table 1

Type key for complete thermometers # X - # # # # - #

Sensor type

Resistance thermometer W

Thermocouple T

Design of the protective fitting

Screw-in fitting E

Flanged fitting F

Flanged fitting without protective tube A

Without protective tube O

Transmitter (installed in the cover)

Without O

SITRANS TH100 (PTB 05 ATEX 2049 X, type 7NG3211-0AN00) D

SITRANS TH200 (PTB 05 ATEX 2040 X, type 7NG3211-1AN00) E

SITRANS TH300 (PTB 05 ATEX 2040 X, type 7NG3212-0AN00) F

SITRANS T3KPA (ZELM 99 ATEX 0001, type 7NG3213-1NN00) P

Number of sensors

Single 1

Dual 2

Sensor

Pt 100 Pt100

Pt 1000 Pt1000

Ni 100 Ni100

Ni – CrNi (K) K

Fe – CuNi (L) L

Fe – CuNi (J) J

NiCrSi – NiSi (N) N

Cu - CuNi (U) U

Cu – CuNi (T) T

NiCr – CuNi (E) E

Pt10%Rh – Pt (S) S

Pt13%Rh – Pt (R) R

Pt30%Rh – Pt6%Rh (B) B

Diameter

8.0 mm 8

6.0 mm 6

3.0 mm 3

Marking of the degree of protection

SITRANS T - Explosion protected temperature sensor

2 Operating Instructions, 10/2006, A5E01001363-01

1.3.2 Type marking for measuring elements

Table 2

Type key for measuring elements # MX - # # # - #

Sensor type

Resistance thermometer W

Thermocouple T

Transmitter (installed on the round blank) 1)

Without O

SITRANS TH100 (PTB 05 ATEX 2049 X, type 7NG3211-0AN00) D

SITRANS TH200 (PTB 05 ATEX 2040 X, type 7NG3211-1AN00) E

SITRANS TH300 (PTB 05 ATEX 2040 X, type 7NG3212-0AN00) F

Number of sensors

Single 1

Dual 2

Sensor

Pt 100 Pt100

Pt 1000 Pt1000

Ni 100 Ni100

NiCr – Ni (K) K

Fe – CuNi (L) L

Fe – CuNi (J) J

NiCrSi – NiSi (N) N

Cu - CuNi (U) U

Cu – CuNi (T) T

NiCr – CuNi (E) E

Pt10%Rh - Pt (S) S

Pt13%Rh - Pt (R) R

Pt30%Rh - Pt6%Rh (B) B

8.0 mm 8

6.0 mm 6

3.0 mm 3

1) Possible only in combination with single-sensors

1.4 Protection type

Thermometers listed here are in conformity with the intrinsically-safe protection type "i", category ia

2 Marking of the degree of protection

EEx ia IIC T4/T6

Range of uses

SITRANS T - Explosion protected temperature sensor

Operating Instructions, 10/2006, A5E01001363-01 3

3 Range of uses

3.1 Description

The type *X-E***-* or type *X-F***-* thermometers are suitable for applications in areas of

category II 1/2 G (installed in the divider of category II 1G, zone 0 areas) and areas of category II 2G.

Marking:

II 1/2 G EEx ia IIC T4/T6

The type *X-A***-* or type *X-O***-* as well as type *MX-***-* measuring elements are suited for applications in

the areas of category II 2G.

Marking:

II 2 G EEx ia IIC T4/T6

The temperature class (T4/T6) depends on the installed transmitters, as per the table.

Type Marking Ambient temperature

*X-ED**-*, *X-FD**-* II 1/2G EEx ia IIC T4/T6 - 40°C < Ta < + 85°C (T4)

- 40°C < Ta < + 55°C (T6)

*X-EP**-*, *X-EO**-*,

*X-FP**-*, *X-FO**-* II 1/2G EEx ia IIC T4/T6 - 40°C < Ta < + 80°C (T4)

- 40°C < Ta < + 60°C (T6)

*X-EE**-*, *X-EF**-*,

*X-FE**-*, *X-FF**-* II 1/2G EEx ia IIC T4/T6 - 40°C < Ta < + 85°C (T4)

- 40°C < Ta < + 60°C (T6)

*X-OP**-*, *X-OO**-*,

*MX-O**-*

*X-AP**-*, *X-AO**-*

II 2G EEx ia IIC T4/T6 - 40°C < Ta < + 80°C (T4)

- 40°C < Ta < + 60°C (T6)

*X-AD**-*, *X-OD**-*,

*MX-D**-* II 2G EEx ia IIC T4/T6 - 40°C < Ta < + 85°C (T4)

- 40°C < Ta < + 55°C (T6)

*X-AE**-*, *X-AF**-*,

*X-OE**-*, *X-OF**-*,

*MX-E**-*, *MX-F**-*

II 2G EEx ia IIC T4/T6 - 40°C < Ta < + 85°C (T4)

- 40°C < Ta < + 60°C (T6)

3.2 Parameters

3.2.1 Type *X-*D**-* or measuring element type *MX-D**-*

(Connection through a built-in or fitted SITRANS TH100 type 7NG3211-0AN00 transmitter, connections 1(+) and

2(-), certificate number: PTB 05 ATEX 2049 X)

Power supply and signal circuit (electrical specifications as per PTB 05 ATEX 2049 X)

Maximum input voltage Ui DC 30 V

Maximum input current Ii 100 mA

Maximum input power Pi 750 mW

Maximum internal capacitance Ci 7.3 nF

Maximum internal inductance Li 106 µH

Range of uses

SITRANS T - Explosion protected temperature sensor

4 Operating Instructions, 10/2006, A5E01001363-01

3.2.2 Type *X-*E**-*, type *X-*F**-* or measuring elements type *MX-E**-*, type *MX-F**-*

(Connection through a built-in or fitted SITRANS TH200 type 7NG3211-1AN00 or SITRANS TH300 type

7NG3212-0AN00 transmitter, connections 1(+) and 2(-), certificate number: PTB 05 ATEX 2040 X)

Power supply and signal circuit (electrical specifications as per PTB 05 ATEX 2040 X)

Maximum input voltage Ui DC 30 V

Maximum input current Ii 100 mA

Maximum input power Pi 750 mW

Maximum internal capacitance Ci 13 nF

Maximum internal inductance Li 106 µH

3.2.3 Thermometer type *X-*P**-*

(Connection through a built-in or fitted SITRANS T3K PA type 7NG3213-1NN00 TH100 transmitter, terminals 5

and 6, certificate number: ZELM 99 ATEX 0001)

Power supply/signal circuit (electrical specifications as per ZELM 99 ATEX 0001)

FISCO supply unit Linear barrier

Maximum input voltage Ui 17.5 V 24 V

Maximum input power Pi -- 1.2 W

Maximum internal capacitance Ci 1.1 nF

Maximum internal inductance Li 5.5 µH

3.2.4 Thermometer type *X-*O**-*, measuring element type *MX-O**-*

Power/data flow circuit

Maximum input voltage Ui DC 30 V

Maximum input power Pi 200 mW

Maximum internal capacitance Ci negligible

Maximum internal inductance Li negligible

i 15 µH

3.3 Thermal parameters

3.3.1 Range of ambient temperature and temperature class

Thermometer type *X-*D**-* or measuring element type *MX-D**-*

Temperature class T4, range of ambient temperature: - 40°C to + 85°C

Temperature class T6, range of ambient temperature: - 40°C to + 55°C

Thermometer type *X-*E**-*, type *X-*F**-* or measuring elements type *MX-E**-*, type *MX-F**-*

Temperature class T4, range of ambient temperature: - 40°C to + 85°C

Temperature class T6, range of ambient temperature: - 40°C to + 60°C

For thermometer type *X-*P**-* and thermometer type *X-*O**-*, measuring element type *MX-O**-*

Temperature class T4, range of ambient temperature: - 40°C to + 80°C

Temperature class T6, range of ambient temperature: - 40°C to + 60°C

When measuring process temperatures deviating from these values, the determination of the range of ambient

temperature and the temperature class exclusively refers to the connection head or connection terminals; the

Range of uses

SITRANS T - Explosion protected temperature sensor

Operating Instructions, 10/2006, A5E01001363-01 5

effect of the process temperature on the temperature of the neck tube must be taken into account separately

when operating the thermometer or the measuring element.

3.3.2 Process temperature

Depending on the design and other process conditions:

For resistance thermometers - 200°C to + 600°C

For thermocouples - 50°C to + 900°C

3.4 Requirements and conditions for safe application

Take suitable measures, e.g. by selecting a neck tube of adequate length, to ensure the decoupling of the

connection head temperature from the process temperature in case of type *X-****-* and the decoupling of the

connection terminal temperature from the process temperature in case of type *MX-***-*.

Follow the manufacturer's application instructions regarding permissible process conditions.

Follow the requirements / conditions for safe operation that are listed in the corresponding transmitter certificates

The following also applies to the measuring elements of type *MX-***-*:

Install the measuring element in a suitable housing that ensures at least an IP20 degree of protection. The

internal wiring must fulfill conditions specified in section 6.4.11 of EN 50020.

Install it such that there is a gap of at least 3 mm between the bare parts of the intrinsically-safe

electrical circuits and the metallic parts of the housing.

Installation

SITRANS T - Explosion protected temperature sensor

6 Operating Instructions, 10/2006, A5E01001363-01

4 Installation

Adhere to standards such as EN 60079-14, "Electrical apparatus for explosive gas atmospheres" when carrying

out the installation

If types # X - E # # # - # or # X - F # # # - # are installed in the boundary wall of the hazardous area having

category 1 requirements, the installation must be sufficiently thick or flashover-proof.

5 Assembly and disassembly

The temperature sensors must be connected to the process equipment in a sealed, firm and secure manner, as

per recognized technical standards. Also ensure that the thermometers have adequate "heat exchange surface"

with the medium to be measured and that the error due to heat dissipation through the protective tube is kept to a

minimum. The thermometers must be firmly connected to the connecting leads. Ensure correct connection of the

circuit type in the case of resistance thermometers, and correct polarity in case of thermocouples. Notes

regarding the use of cables and leads are given in chapter 9 of EN 60079-14. When exchanging measuring

elements, ensure that they can be pulled out from the protective fitting slightly and re-installed. If complete

protective fittings are to be replaced, the process should be shut down and the container should be empty and

depressurized in order avoid risk of injuries due to escaping medium.

In general, damaged parts must be replaced with new parts.

6 Commissioning

Check all Ex-relevant parameters of connected components before commissioning. Check the correct connection

of the circuit type in the case of resistance thermometers, and the correct polarity in the case of thermocouples.

7 Maintenance

Adhere to European and national directives for maintenance. As a rule, check the functioning of temperature

sensors regularly. This is especially applicable for the parts that the type of protection depends upon. Only

replace defective sensors with new ones of the same type.

Appendix 1

SITRANS T - Explosion protected temperature sensor

Operating Instructions, 10/2006, A5E01001363-01 7

8 Appendix 1

EC-type examination certificate page 1

Appendix 2

SITRANS T - Explosion protected temperature sensor

8 Operating Instructions, 10/2006, A5E01001363-01

9 Appendix 2

EC declaration of conformity

Appendix 2

SITRANS T - Explosion protected temperature sensor

Operating Instructions, 10/2006, A5E01001363-01 9

Appendix 2

SITRANS T - Explosion protected temperature sensor

10 Operating Instructions, 10/2006, A5E01001363-01