Siemens SITRANS 7ML1105 Administrator guide

SITRANS L
Ultrasonic level transducers
Transducers
Compact Operating Instructions
7ML1100 (ST-H Transducer)
7ML1105 (Echomax XRS-5C Transducer)
7ML1106 (Echomax XRS-5 Transducer)
7ML1115 (Echomax XPS-10 Transducer)
7ML1118 (Echomax XPS-15 Transducer)
7ML1123 (Echomax XPS-30 Transducer)
7ML1127 (Echomax XPS-40 Transducer)
7ML1141 (Echomax XLT-30 Transducer)
7ML1145 (Echomax XLT-60 Transducer)
7ML1155 (Echomax XPS-30C Transducer)
7ML1160 (Echomax XPS-10D Transducer)
7ML1170 (Echomax XPS-10F Transducer)
7ML1171 (Echomax XPS-15F Transducer)
09/2021
A5E43390688-AC
Introduction 1
Safety notes 2
Installing/mounting 3
Connecting 4
Technical speci󹪝cations 5
Applications A
Certi󹪝cates B
Product documentation and
support C

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.
Quali󹪝ed Personnel
The product/system described in this documentation may be operated only by personnel quali󹪝ed for the speci󹪝c
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Quali󹪝ed 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 identi󹪝ed 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
Digital Industries
Postfach 48 48
90026 NÜRNBERG
GERMANY
Document order number: A5E43390688
Ⓟ 03/2022 Subject to change
Copyright © Siemens AG 2021.
All rights reserved

Table of contents
1 Introduction ........................................................................................................................................... 5
1.1 Purpose of this documentation ............................................................................................ 5
1.2 Checking the consignment................................................................................................... 5
1.3 Transportation and storage .................................................................................................. 5
1.4 Security information ............................................................................................................ 6
1.5 Notes on warranty ............................................................................................................... 6
1.6 About Siemens' Transducers................................................................................................. 6
2 Safety notes ........................................................................................................................................... 9
2.1 Preconditions for use ........................................................................................................... 9
2.1.1 Warning symbols on device.................................................................................................. 9
2.1.2 Laws and directives.............................................................................................................. 9
2.1.3 Improper device modi󹪝cations............................................................................................ 10
2.1.4 Safety Precautions ............................................................................................................. 10
2.2 Use in hazardous areas....................................................................................................... 11
2.3 Requirements for special applications................................................................................. 12
3 Installing/mounting ............................................................................................................................. 13
3.1 Basic safety notes............................................................................................................... 13
3.1.1 Installation location requirements ...................................................................................... 14
3.1.1.1 Insu󹪟cient air supply ......................................................................................................... 14
3.1.2 Proper mounting................................................................................................................ 15
3.2 Disassembly....................................................................................................................... 16
3.3 Outline and Dimensions..................................................................................................... 17
3.3.1 XPS Transducers................................................................................................................. 17
3.3.2 XRS-5 ................................................................................................................................ 18
3.3.3 ST-H .................................................................................................................................. 19
3.4 Mounting .......................................................................................................................... 20
3.4.1 Solids applications ............................................................................................................. 20
3.4.2 Liquids applications ........................................................................................................... 21
3.4.2.1 XPS Transducers................................................................................................................. 21
3.4.2.2 XRS-5 ................................................................................................................................ 23
3.4.2.3 ST-H .................................................................................................................................. 24
4 Connecting .......................................................................................................................................... 27
4.1 Basic safety notes............................................................................................................... 27
4.1.1 Connect or disconnect device only in a de-energized state.................................................. 28
4.2 Connecting note ................................................................................................................ 29
4.3 Direct connection .............................................................................................................. 29
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 3

4.4 Coaxial connection ............................................................................................................ 30
4.5 2 Wire Extension ................................................................................................................ 31
4.6 3 Terminal ......................................................................................................................... 31
5 Technical speci󹪝cations ....................................................................................................................... 33
5.1 Speci󹪝cations..................................................................................................................... 33
A Applications ......................................................................................................................................... 35
A.1 Liquids applications ........................................................................................................... 35
A.1.1 Stilling well with standpipe ................................................................................................ 35
A.1.2 Submergence .................................................................................................................... 36
A.1.3 Standpipes......................................................................................................................... 37
A.1.4 Volume.............................................................................................................................. 39
A.1.5 Water/wastewater.............................................................................................................. 40
A.2 Solids applications ............................................................................................................. 41
A.2.1 Typical ............................................................................................................................... 41
A.2.2 Special............................................................................................................................... 44
BCerti󹪝cates........................................................................................................................................... 47
B.1 Wiring setups for hazardous area installations .................................................................... 47
B.2 Instructions speci󹪝c to hazardous area installations ............................................................ 49
C Product documentation and support .................................................................................................. 51
C.1 Product documentation ..................................................................................................... 51
C.2 Technical support............................................................................................................... 52
Index .................................................................................................................................................... 53
Table of contents
Transducers
4Compact Operating Instructions, 09/2021, A5E43390688-AC

Introduction 1
1.1 Purpose of this documentation
These instructions are a brief summary of important features, functions and safety information,
and contain all information required for safe use of the device. Read the instructions carefully
prior to installation and commissioning. In order to use the device correctly, 󹪝rst review its
principle of operation.
The instructions are aimed at persons who install and commission the device.
To realize optimum performance from the device, read the complete operating instructions.
1.2 Checking the consignment
1. Check the packaging and the delivered items for visible damages.
2. Report any claims for damages immediately to the shipping company.
3. Retain damaged parts for clari󹪝cation.
4. Check the scope of delivery by comparing your order to the shipping documents for
correctness and completeness.
WARNING
Using a damaged or incomplete device
Risk of explosion in hazardous areas.
• Do not use damaged or incomplete devices.
1.3 Transportation and storage
To guarantee su󹪟cient protection during transport and storage, observe the following:
• Keep the original packaging for subsequent transportation.
• Devices/replacement parts should be returned in their original packaging.
• If the original packaging is no longer available, ensure that all shipments are properly
packaged to provide su󹪟cient protection during transport. Siemens cannot assume liability
for any costs associated with transportation damages.
NOTICE
Insu󹪟cient protection during storage
The packaging only provides limited protection against moisture and in󹪝ltration.
• Provide additional packaging as necessary.
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 5

Special conditions for storage and transportation of the device are listed in Technical
speci󹪝cations (Page 33).
1.4 Security information
Siemens provides products and solutions with industrial security functions that support the
secure operation of plants, systems, machines and networks.
In order to protect plants, systems, machines and networks against cyber threats, it is necessary
to implement – and continuously maintain – a holistic, state-of-the-art industrial security
concept. Siemens’ products and solutions constitute one element of such a concept.
Customers are responsible for preventing unauthorized access to their plants, systems,
machines and networks. Such systems, machines and components should only be connected to
an enterprise network or the internet if and to the extent such a connection is necessary and only
when appropriate security measures (e.g. 󹪝rewalls and/or network segmentation) are in place.
For additional information on industrial security measures that may be implemented, please
visit
https://www.siemens.com/industrialsecurity.
Siemens’ products and solutions undergo continuous development to make them more secure.
Siemens strongly recommends that product updates are applied as soon as they are available
and that the latest product versions are used. Use of product versions that are no longer
supported, and failure to apply the latest updates may increase customer’s exposure to cyber
threats.
To stay informed about product updates, subscribe to the Siemens Industrial Security RSS Feed
under
https://www.siemens.com/cert.
1.5 Notes on warranty
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 re󹪞ects the technical status at the time of publishing. Siemens reserves the right to
make technical changes in the course of further development.
1.6 About Siemens' Transducers
Note
This product is intended for use in industrial areas. Operation of this equipment in a residential
area may cause interference to several frequency based communications.
Introduction
1.6 About Siemens' Transducers
Transducers
6Compact Operating Instructions, 09/2021, A5E43390688-AC

The transducers operate in association with Siemens' ultrasonic level monitoring products by
converting electrical pulses that are provided by the transceiver into ultrasonic pulses. When
transmitted, these ultrasonic pulses re󹪞ect from the material surface and echo back to the
transducer. The echo is converted back to an electrical signal, and is interpreted by the Siemens
transceiver using our proven Sonic Intelligence™ algorithms.
The e󹪜ective acoustical energy is emitted from the transducer face and radiated outward,
decreasing in amplitude at a rate inversely proportional to the square of the distance.
Maximum power is radiated axially (perpendicular) from the transducer face in a line referred to
as the axis of transmission. Where power is reduced by half (– 3 dB), a conical boundary
de󹪝ning the sound beam, centered about the axis of transmission, is established. The diametric
measurement of the cone in degrees de󹪝nes the beam angle. Impedance matching techniques
are used to optimize the transfer of power from the transducer into air and vice versa.
All transducers incorporate an integral temperature sensor that reports the air temperature at
the transducer to the transceiver. The connection is transparent, in that both the ultrasonic and
temperature components of the transducer use the same leads.
XPS-10, XPS-15/15F,
XPS-30, XRS-5/5C
ST-H Transducer with explosion proof
conduit seal



①Explosion proof conduit seal1)
②Transducer
③Transducer face
④3 db boundary
⑤Axis of transmission2)
1) Optional
Introduction
1.6 About Siemens' Transducers
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 7

2) Perpendicular to Transducer face
Note
Use in hazardous areas
The XPS-15F and XRS-5C already have a built-in explosion proof conduit seal.
All other transducers may need the optional explosion proof conduit seal for use in hazardous
areas according to local codes and guidelines.
Introduction
1.6 About Siemens' Transducers
Transducers
8Compact Operating Instructions, 09/2021, A5E43390688-AC

Safety notes 2
2.1 Preconditions for use
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 speci󹪝cations 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.
2.1.1 Warning symbols on device
Symbol Explanation
Consult operating instructions
2.1.2 Laws and directives
Observe the safety rules, 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 Part I) (Canada)
Further provisions for hazardous area applications are for example:
• IEC 60079-14 (international)
• EN 60079-14 (EU and UK)
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 9

2.1.3 Improper device modi󹪝cations
WARNING
Improper device modi󹪝cations
Risk to personnel, system and environment can result from modi󹪝cations to the device,
particularly in hazardous areas.
• Only carry out modi󹪝cations that are described in the instructions for the device. Failure to
observe this requirement cancels the manufacturer's warranty and the product approvals.
2.1.4 Safety Precautions
The ST-H transducer body is a two part design molded in PVDF or ETFE with internal parts potted
in epoxy. The joint between the upper and lower sections is not a hermetic seal. The structural
integrity of the transducer will be compromised if the joint is exposed to an environment that
attacks epoxy. As a result, the top section will separate from the main body of the transducer.
For environments that are compatible with PVDF or ETFE but may degrade epoxy, the transducer
must be mounted through a 󹪞ange or stub mount using the 2" thread on the lower section of the
transducer. The joint between upper and lower sections of the transducer must be isolated from
the corrosive environment.

①Suitable for use in a corrosive environment
②Not suitable for use in a corrosive environment
Safety notes
2.1 Preconditions for use
Transducers
10 Compact Operating Instructions, 09/2021, A5E43390688-AC

WARNING
Risk of explosion
If the top section separates from the main body of the transducer, live circuitry will be exposed
to the hazardous environment, increasing the risk of an explosion if volatile or explosive dusts
or gases are in su󹪟cient concentration. A malfunction of the level system may also occur,
which may a󹪜ect the process using the ultrasonic ranging system.
2.2 Use in hazardous areas
Quali󹪝ed personnel for hazardous area applications
Persons who install, connect, commission, operate, and service the device in a hazardous area
must have the following speci󹪝c quali󹪝cations:
• 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
Use in hazardous area
Risk of explosion.
• Only use equipment that is approved for use in the intended hazardous area and labeled
accordingly.
• Do not use devices that have been operated outside the conditions speci󹪝ed for hazardous
areas. If you have used the device outside the conditions for hazardous areas, make all Ex
markings unrecognizable on the nameplate.
Safety notes
2.2 Use in hazardous areas
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 11

2.3 Requirements for special applications
Due to the large number of possible applications, each detail of the described device versions for
each possible scenario during commissioning, operation, maintenance or operation in systems
cannot be considered in the instructions. If you need additional information not covered by
these instructions, contact your local Siemens o󹪟ce or company representative.
Note
Operation under special ambient conditions
We highly recommend that you contact your Siemens representative or our application
department before you operate the device under special ambient conditions as can be
encountered in nuclear power plants or when the device is used for research and development
purposes.
Note
Operation under special atmospheric conditions
Ultrasonic measurement requires that the sound wave travel through the atmosphere in a
consistent manner. Applications with atmospheric conditions di󹪜erent from air (including, but
not limited to, gas layer strati󹪝cation, very high methane or CO2 concentrations), should be
properly assessed to ensure safe, reliable use in the event of measurement errors due to sound
wave velocity changes.
Safety notes
2.3 Requirements for special applications
Transducers
12 Compact Operating Instructions, 09/2021, A5E43390688-AC

Installing/mounting 3
3.1 Basic safety notes
DANGER
Pressure applications
Danger to personnel, system and environment will result from improper disassembly.
• Never attempt to loosen, remove, or disassemble process connection while vessel contents
are under pressure.
WARNING
Wetted parts unsuitable for the process media
Risk of injury or damage to device.
Hot, toxic and corrosive media could be released if the wetted parts are unsuitable for the
process medium.
• Ensure that the material of the device parts wetted by the process medium is suitable for the
medium. Refer to the information in Technical speci󹪝cations (Page 33).
Note
Material compatibility
Siemens can provide you with support concerning selection of parts wetted by process media.
However, you are responsible for the selection of parts. Siemens accepts no liability for faults or
failures resulting from incompatible materials.
WARNING
Unsuitable connecting parts
Risk of injury or poisoning.
In case of improper mounting, hot, toxic, and corrosive process media could be released at the
connections.
• Ensure that connecting parts (such as 󹪞ange gaskets and bolts) are suitable for connection
and process media.
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 13

WARNING
Exceeded maximum permissible operating pressure
Risk of injury or poisoning.
The maximum permissible operating pressure depends on the device version, pressure limit
and temperature rating. The device can be damaged if the operating pressure is exceeded. Hot,
toxic and corrosive process media could be released.
Ensure that maximum permissible operating pressure of the device is not exceeded. Refer to
the information on the nameplate and/or in Technical speci󹪝cations (Page 33).
CAUTION
Hot surfaces resulting from hot process media
Risk of burns resulting from surface temperatures above 65 °C (149 °F).
• Take appropriate protective measures, for example contact protection.
• Make sure that protective measures do not cause the maximum permissible ambient
temperature to be exceeded. Refer to the information in Technical speci󹪝cations (Page 33).
CAUTION
External stresses and loads
Damage to device by severe external stresses and loads (e.g. thermal expansion or pipe
tension). Process media can be released.
• Prevent severe external stresses and loads from acting on the device.
3.1.1 Installation location requirements
3.1.1.1 Insu󹪟cient air supply
WARNING
Insu󹪟cient air supply
The device may overheat if there is an insu󹪟cient supply of air.
• Install the device so that there is su󹪟cient air supply in the room.
• Observe the maximum permissible ambient temperature. Refer to the information in the
section Technical speci󹪝cations (Page 33).
Installing/mounting
3.1 Basic safety notes
Transducers
14 Compact Operating Instructions, 09/2021, A5E43390688-AC

NOTICE
Aggressive atmospheres
Damage to device through penetration of aggressive vapors.
• Ensure that the device is suitable for the application.
NOTICE
Direct sunlight
Damage to device.
The device can overheat or materials become brittle due to UV exposure.
• Protect the device from direct sunlight.
• Make sure that the maximum permissible ambient temperature is not exceeded. Refer to
the information in Technical speci󹪝cations (Page 33).
NOTICE
Strong vibrations
Damage to device.
• In installations with strong vibrations, mount the transmitter in a low vibration
environment.
3.1.2 Proper mounting
WARNING
Loss of type of protection
Risk of explosion. Damage to device if the enclosure is open or not properly closed. The type of
protection speci󹪝ed on the nameplate or in Technical speci󹪝cations (Page 33) is no longer
guaranteed.
• Make sure that the device is securely closed.
Installing/mounting
3.1 Basic safety notes
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 15

NOTICE
Incorrect mounting
The device can be damaged, destroyed, or its functionality impaired through improper
mounting.
• Before installing ensure there is no visible damage to the device.
• Make sure that process connectors are clean, and suitable gaskets and glands are used.
• Mount the device using suitable tools. Refer to the information in Technical speci󹪝cations
(Page 33).
3.2 Disassembly
WARNING
Incorrect disassembly
The following risks may result from incorrect disassembly:
- Injury through electric shock
- Risk through emerging media when connected to the process
- Risk of explosion in hazardous area
In order to disassemble correctly, observe the following:
• Before starting work, make sure that you have switched o󹪜 all physical variables such as
pressure, temperature, electricity etc. or that they have a harmless value.
• If the device contains hazardous media, it must be emptied prior to disassembly. Make sure
that no environmentally hazardous media are released.
• Secure the remaining connections so that no damage can result if the process is started
unintentionally.
Installing/mounting
3.2 Disassembly
Transducers
16 Compact Operating Instructions, 09/2021, A5E43390688-AC

3.3 Outline and Dimensions
3.3.1 XPS Transducers
'&()*%$
①Radiating face
Dimension XPS-10 XPS-15 XPS-30
A 88 mm (3.4") 121 mm (4.8") 175 mm (6.9")
B 122 mm (4.8") 132 mm (5.2") 198 mm (7.8")
C to suit ANSI, DIN and JIS standards
D1) 128 mm (5.0") 138 mm (5.4") 204 mm (8.0")
E 124 mm (4.9") 158 mm (6.2") n/a
F 152 mm (6.0") 198 mm (7.8") n/a
G 28 mm (1.1") 28 mm (1.1") 28 mm (1.1")
1) Nominal
WARNING
Potential hazard
Optional Split Flange, Bonded Flange, and Easy Aimer con󹪝gurations are not suitable for
pressure applications.
Installing/mounting
3.3 Outline and Dimensions
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 17

3.3.2 XRS-5
PP$16,',1RU-,6ᚔDQGDUGVPPPPPPPPPP
①Standard
②Flange (Optional)
③Submergence Shield (Optional)
Installing/mounting
3.3 Outline and Dimensions
Transducers
18 Compact Operating Instructions, 09/2021, A5E43390688-AC

3.3.3 ST-H
PPPPPPPPPP
①87 mm Ø (3.4")
②2" NPT, R 2" (BSPT), or G 2" (BSPP) mounting thread (process connection)
③1" NPT conduit thread
Flange Adapter

①Plastic type coupling
②Siemens 󹪞ange adapter
Installing/mounting
3.3 Outline and Dimensions
Transducers
Compact Operating Instructions, 09/2021, A5E43390688-AC 19

3.4 Mounting
Note
• The transducer is to be used only in the manner outlined in this operating instructions.
• Normally, the transducer requires no cleaning or maintenance. However, if performance
changes are observed, immediately shut down the level measurement system and perform
a thorough inspection, especially on the transducer.
• An XPS-15F transducer is shown in these examples. An explosion proof conduit seal may not
be required.
3.4.1 Solids applications
XPS-15F,
XRS-5C
XPS-10, XPS-15,
XPS-30, XRS-5
ST-H



①Easy aimer (typical model)
②Safety chain
③Transducer
Installing/mounting
3.4 Mounting
Transducers
20 Compact Operating Instructions, 09/2021, A5E43390688-AC