Siemens SITRANS TH100 User manual

SITRANS T
Temperature transmitter
SITRANS TH100
Operating Instructions
7NG3211-0*N00 SITRANS TH100
09/2013
A5E00331168-04
Introduction
1
General safety information
2
Description
3
Assembly
4
Connecting
5
Operation
6
Commissioning
7
Functions
8
Service and maintenance
9
Technical data
10
Dimensional drawings
11
Spare parts and accessories
12
Appendix
A

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified
personnel are those who, based on their training and experience, are capable of identifying risks and avoiding
potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in
this publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: A5E00331168
Ⓟ 09/2013 Technical data subject to change
Copyright © Siemens AG 2013.
All rights reserved

Table of contents
1 Introduction...................................................................................................................................................5
1.1 Conformity with European directives.............................................................................................6
2General safety information...........................................................................................................................7
3Description....................................................................................................................................................9
3.1 Product features............................................................................................................................9
3.2 Nameplate structure....................................................................................................................10
3.3 Mode of operation.......................................................................................................................11
4 Assembly....................................................................................................................................................13
4.1 Installation in the connection head..............................................................................................13
4.2 Installation on DIN rail and G rail.................................................................................................15
5 Connecting.................................................................................................................................................17
5.1 Safety information when connecting...........................................................................................17
5.1.1 Safety notes when connecting in hazardous areas.....................................................................18
5.2 Connecting the auxiliary power supply........................................................................................20
5.3 Connector assignments...............................................................................................................21
5.4 Connection diagrams..................................................................................................................22
6 Operation....................................................................................................................................................23
7 Commissioning...........................................................................................................................................25
8 Functions....................................................................................................................................................27
8.1 Output current in event of fault....................................................................................................27
8.2 Broken wire monitoring................................................................................................................27
8.3 Short-circuit monitoring...............................................................................................................28
8.4 Line compensation......................................................................................................................28
8.5 Type of characteristic curve (rising or falling)..............................................................................28
9 Service and maintenance...........................................................................................................................29
10 Technical data............................................................................................................................................31
11 Dimensional drawings................................................................................................................................35
11.1 Dimension drawing for SITRANS TH100....................................................................................35
11.2 Dimension drawing for the DIN rail adapter................................................................................35
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 3

12 Spare parts and accessories......................................................................................................................37
A Appendix.....................................................................................................................................................39
A.1 Certificates..................................................................................................................................39
A.2 Control drawing...........................................................................................................................40
A.3 Technical support........................................................................................................................42
Glossary.....................................................................................................................................................43
Index...........................................................................................................................................................47
Table of contents
SITRANS TH100
4Operating Instructions, 09/2013, A5E00331168-04

Introduction 1
These instructions contain all information required to commission and use the device. It is your
responsibility to read the instructions carefully prior to installation and commissioning. In order
to use the device correctly, first review its principle of operation.
The instructions are aimed at persons mechanically installing the device, connecting it
electronically, configuring the parameters and commissioning it, as well as service and
maintenance engineers.
The following table shows the most important changes in the documentation compared to each
previous edition:
Edition Remark Firmware identification
nameplate
System integration
01
06/2006
First edition FW: 01.01.00 TH100: SIPROM T V1.07
02
06/2010
Editorial revision as
regards content
FW: 01.01.00 TH100: SIPROM T V1.07
03 Not released
04
08/2013
Editorial revision as
regards content
FW: 01.01.00 TH100: SIPROM T V1.2.3
The contents of this manual shall not become part of or modify any prior or existing agreement,
commitment or legal relationship. The sales contract contains all obligations on the part of
Siemens as well as the complete and solely applicable warranty conditions. Any statements
regarding device versions described in the manual do not create new warranties or modify the
existing warranty.
The content reflects the technical status at the time of publishing. Siemens reserves the right
to make technical changes in the course of further development.
Observe the test certification, provisions and laws applicable in your country during connection,
assembly and operation. These include, for example:
● National Electrical Code (NEC - NFPA 70) (USA)
● Canadian Electrical Code (CEC) (Canada)
Further provisions for hazardous area applications are for example:
● IEC 60079-14 (international)
● EN 60079-14 (EC)
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 5

1.1 Conformity with European directives
The CE marking on the device symbolizes the conformity with the following European
directives:
Electromagnetic
compatibility EMC
2004/108/EC
Directive of the European Parliament and of the Council on the
approximation of the laws of the Member States relating to
electromagnetic compatibility and repealing Directive 89/336/
EEC.
Atmosphère explosible
ATEX
94/9/EC
Directive of the European Parliament and the Council on the
approximation of the laws of the Member States concerning
equipment and protective systems intended for use in potentially
explosive atmospheres.
The applicable directives can be found in the EC conformity declaration of the specific device.
Introduction
1.1 Conformity with European directives
SITRANS TH100
6Operating Instructions, 09/2013, A5E00331168-04

General safety information 2
This device left the factory in good working condition. In order to maintain this status and to
ensure safe operation of the device, observe these instructions and all the specifications
relevant to safety.
Observe the information and symbols on the device. Do not remove any information or symbols
from the device. Always keep the information and symbols in a completely legible state.
WARNING
Improper device modifications
Danger to personnel, system and environment can result from modifications to the device,
particularly in hazardous areas.
●Only carry out modifications that are described in the instructions for the device. Failure
to observe this requirement cancels the manufacturer's warranty and the product
approvals.
Qualified personnel for hazardous area applications
Persons who install, assemble, commission, operate and service the device in a hazardous
area must have the following specific qualifications:
● They are authorized, trained or instructed in operating and maintaining devices and systems
according to the safety regulations for electrical circuits, high pressures, aggressive and
hazardous media.
● They are authorized, trained, or instructed in carrying out work on electrical circuits for
hazardous systems.
● They are trained or instructed in maintenance and use of appropriate safety equipment
according to the pertinent safety regulations.
WARNING
Unsuitable device for the hazardous area
Danger of explosion.
● Only use equipment that is approved for use in the intended hazardous area and labelled
accordingly.
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 7

WARNING
Loss of safety of device with type of protection "Intrinsic safety Ex i"
If the device has already been operated in non-intrinsically safe circuits or the electrical
specifications have not been observed, the safety of the device is no longer ensured for use
in hazardous areas. There is a danger of explosion.
● Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
circuit.
● Observe the specifications for the electrical data on the certificate and in Chapter
"Technical data".
WARNING
Incorrect selection of type of protection
Danger of explosion in areas subject to explosion hazard.
This device is approved for several types of protection.
1. Decide in favor of one type of protection.
2. Connect the device in accordance with the selected type of protection.
3. In order to avoid incorrect use at a later point, make the types of protection that are not
used permanently unrecognizable on the nameplate.
CAUTION
Device damage due to electrical discharge
●Avoid contact with the device or electrical connections without being electrostatically
discharged
General safety information
SITRANS TH100
8Operating Instructions, 09/2013, A5E00331168-04

Description 3
The SITRANS TH100 transmitter can be used in all fields. Its compact size means that it can
be installed in connection heads of type B (DIN 43729) or larger. The following sensor can be
connected:
● Pt100 resistance thermometer
The output signal is a load-independent direct current of 4 to 20 mA which is proportional to
the temperature.
Explosion-proof transmitters can be installed and operated within potentially explosive
atmospheres in compliance with the information given in the relevant certificates and approvals
and in these Operating Instructions.
3.1 Product features
● Transmitter with two-wire technology
● Installation in connection head of type B (in accordance with DIN 43729) or larger, or on a
DIN rail
● Programming e.g. of sensor connection and measuring range
● Intrinsically-safe and non-sparking version for use in hazardous areas
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 9

3.2 Nameplate structure
The nameplate is located on the enclosure and carries the Order No. and other important
product information; see following example.
nnnn
7NG3211-0AN00-Z
Serial-No.: nnn/nnnnnnnn
4...20mA
XXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXX

①Product name ②Version
③Order No. ④Additional data, optional
⑤CE mark ⑥Pay attention to the operating instructions
⑦Firmware revision ⑧Hardware revision
⑨Serial number ⑩Country of origin
⑪Manufacturer's address ⑫Manufacturer
Figure 3-1 Nameplate structure
Note
Information about explosion protection
With explosion-proof devices, the information about explosion protection is noted on an
additional plate on the enclosure.
Information regarding the certified types of protection can be found in Chapter Technical
data (Page 31).
Description
3.2 Nameplate structure
SITRANS TH100
10 Operating Instructions, 09/2013, A5E00331168-04

3.3 Mode of operation
The following function block diagram clarifies the transmitter's mode of operation:
(0&B3W08;$''$w&8,8UHI(0&BP$8UHI,F8DX[,out

①Pt100 resistance thermometer ②Input stage with protection components
③Constant current source ④Multiplexer
⑤Analog-to-digital converter ⑥Microcontroller: arithmetic functions and
saving of all parameters
⑦Digital-to-analog converter ⑧Auxiliary power supply (Uaux)/ output
current (Iout)
⑨Output stage with protection components ⑩Voltage converter, current converter,
constant voltage source, and reference
voltage source
Figure 3-2 Function block diagram SITRANS TH100
Mode of operation of the transmitter
The signal delivered by a Pt100 resistance thermometer (two-wire, three-wire, four-wire
system) is amplified in the input stage. The voltage proportional to the input variable is then
converted into digital signals by a multiplexer in an analog-to-digital converter. These are
converted in the microcontroller in accordance with the sensor characteristic and further data,
e.g. measuring range or damping.
The signal prepared in this manner is then converted in a digital-to-analog converter to a load-
independent direct current of 4 to 20 mA.
The input and output circuits are each protected against electromagnetic interference through
the use of EMC filters.
Description
3.3 Mode of operation
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 11

Assembly 4
WARNING
Mounting in hazardous areas
Make sure you observe the following information before installing the transmitter:
●Install the transmitter in an enclosure appropriate for the envisaged application
● In hazardous areas, also observe the requirements specified in the Ex certificates and
approvals.
WARNING
Exceeded maximum ambient or process media temperature
Danger of explosion in hazardous areas.
Device damage.
●Make sure that the maximum permissible ambient and process media temperatures of
the device are not exceeded. Refer to the information in Chapter "Nameplate structure
(Page 10)".
4.1 Installation in the connection head
Note
The transmitter is only designed for installation in a type B connection head or larger.
The transmitter is either secured in the base of the connection head or in the raised cover of
the connection head. Included in the transmitter's scope of delivery are:
●Springs
● Fixing screws
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 13

Securing the transmitter in the connection head base
①Transmitter ②Connection head
Securing the transmitter in the connection head cover

①Transmitter ②Ceramic base of the measuring element
③Connection head
Assembly
4.1 Installation in the connection head
SITRANS TH100
14 Operating Instructions, 09/2013, A5E00331168-04

4.2 Installation on DIN rail and G rail
You can either install the transmitter on a DIN rail with 35 mm or on a G rail with 32 mm.
DIN EN 60715 applies to DIN rails and G rails in this context. The DIN rail adapter required
for installation can be ordered as an accessory under the Order No. 7NG3092-8KA.
Adhere to the ambient conditions specified in the technical data.
Figure 4-1 Securing the transmitter on DIN rails
Figure 4-2 Securing the transmitter on G rails
Assembly
4.2 Installation on DIN rail and G rail
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 15

Connecting 5
5.1 Safety information when connecting
WARNING
Connecting device in energized state
Danger of explosion in hazardous areas.
●Connect devices in hazardous areas only in a de-energized state.
Exceptions:
● Circuits of limited energy may also be connected in the energized state in hazardous areas.
● Exceptions for type of protection "Non-sparking nA" (Zone 2) are regulated in the relevant
certificate
WARNING
Unsuitable cables and/or cable glands
Danger of explosion in hazardous areas.
●Only use suitable cables and cable glands complying with the requirements specified in
Chapter "Technical data".
● Tighten the cable glands in accordance with the torques specified in Chapter "Technical
data".
● When replacing cable glands use only cable glands of the same type.
● After installation check that the cables are seated firmly.
Note
Improvement of interference immunity
●Lay signal cables separate from cables with voltages > 60 V.
● Use cables with twisted wires.
● Keep device and cables distant to strong electromagnetic fields.
● Use cables with wires that have a maximum cross-sectional area of 2.5 mm2.
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 17

NOTICE
Ambient temperature too high
Damage to cable sheath.
●At an ambient temperature ≥ 60 °C (140 °F), use heat-resistant cables suitable for an
ambient temperature at least 20 °C (68 °F) higher.
5.1.1 Safety notes when connecting in hazardous areas
WARNING
Improper power supply
Danger of explosion in hazardous areas as result of incorrect power supply, e.g. using direct
current instead of alternating current.
● Connect the device in accordance with the specified power supply and signal circuits. The
relevant specifications can be found in the certificates, in Chapter "Technical data
(Page 31)" or on the nameplate.
NOTICE
Limited range of use
If the device has been operated outside the ambient conditions specified for potentially
explosive atmospheres, you may no longer operate the device in potentially explosive
atmospheres. Make sure to permanently mask all Ex markings on the nameplate.
Zone 0 and Zone 1 in type of protection "i" - intrinsic safety
●Only connect the transmitter, in accordance with the certificate of compliance, to devices
certified as intrinsically-safe.
Maximum values of the auxiliary power supply and signal circuits:
Ui = 30 V DC Ii = 100 mA Pi = 750 mW
Li = 106 μH Ci = 7.3 nF
Connecting
5.1 Safety information when connecting
SITRANS TH100
18 Operating Instructions, 09/2013, A5E00331168-04

Maximum values of the sensor circuit:
U0= 9.6 V DC: I0 = 7.6 mA P0 = 12.5 mW
L0 [mH] 50 10 2 0,5
C0 [nF] 560 700 940 1250
● If the connection head is made of aluminum, the requirements of EN 60079-26, section
4.3.3, must be observed for uses where the device category 1 G is required.
Zone 2 in type of protection "nL"
● Install the transmitter in an enclosure meeting the degree of protection IP54 per EN 60529,
e.g. in a type B connection head per DIN 43729.
● Only connect the transmitter to devices that have at least been approved as "nL" certified
devices (limited energy resources) of Category 3.
● Be sure to observe the respective values.
Maximum values of the auxiliary power supply and signal circuits:
Ui = 32 V DC Ii = 100 mA Pi = 750 mW
Li = 106 μH Ci = 7.3 nF
Maximum values of the sensor circuit
U0= 9.6 V DC: I0 = 7.6 mA P0 = 12.5 mW
L0 [mH] 50 10 2 0,5
C0 [nF] 560 700 940 1250
Zone 2 in type of protection "ic"
●Only connect the transmitter to devices that have at least been approved as "ic" certified
devices (intrinsically safe) of Category 3.
● Be sure to observe the respective values.
Maximum values of the auxiliary power supply and signal circuits:
Ui = 32 V DC Ii = 100 mA Pi = 750 mW
Li = 106 μH Ci = 7.3 nF
Maximum values of the sensor circuit
U0= 9.6 V DC: I0 = 7.6 mA P0 = 12.5 mW
L0 [mH] 50 10 2 0,5
C0 [nF] 560 700 940 1250
Connecting
5.1 Safety information when connecting
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04 19

Zone 2 in type of protection "nA" - non-sparking resources
● Install the transmitter in an enclosure meeting the degree of protection IP54 per EN 60529,
e.g. in a type B connection head per DIN 43729.
● Adhere to the conditions for installers applicable to this type of protection.
● The maximum approved input voltage is Un = 35 V DC.
● Take measures to ensure that the supply voltage (including transients) does not rise above
140 % of the rated voltage.
Maximum values of the sensor circuit
U0= 9.6 V DC: I0 = 7.6 mA P0 = 12.5 mW
L0 [mH] 50 10 2 0,5
C0 [nF] 560 700 940 1250
Additional requirements for use in dust explosion protected areas
Install the transmitter in an enclosure suitable for the respective type of dust and corresponding
Zone in accordance with the inspection certificate valid in your country. The enclosure shall
have at least IP5x protection in accordance with IEC 60529.
5.2 Connecting the auxiliary power supply
Procedure
Connect the wires for the auxiliary power supply to terminals "1"(+) and "2"(‑). Ensure that the
polarity is correct. The device is reverse polarity protected.
Connecting
5.2 Connecting the auxiliary power supply
SITRANS TH100
20 Operating Instructions, 09/2013, A5E00331168-04