Siemens SITRANS L User manual

Edition 10/2023
Operating Instructions
SITRANS L
Radar transmitters
SITRANS LR120, HART
https://www.siemens.com/processautomation

SITRANS L
Radar transmitters
SITRANS LR120, HART
Operating Instructions
Preface
Introduction 1
Safety notes 2
Description 3
Installing/mounting 4
Connecting 5
Access protection 6
Setup with smart device
(Bluetooth) 7
Operating 8
Setup with SIMATIC PDM
EDD 9
Diagnostics and
troubleshooting 10
Service and maintenance 11
Certificates and approvals 12
Technical data and
dimensions 13
10/2023
A5E49829026

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.
Measurement Intelligence
Process Automation
76181, Karlsruhe
Germany
Document order number: A5E49829026
© 10/2023 Subject to change
Copyright © Siemens AG 2023
All rights reserved

Table of contents
Preface ............................................................................................................................................ v
1 Introduction ........................................................................................................................... 1
1.1 Function ................................................................................................................ 1
1.2 Target group ......................................................................................................... 1
1.3 Symbols used ........................................................................................................ 1
2 Safety notes .......................................................................................................................... 3
2.1 Authorised personnel ............................................................................................ 3
2.2 Appropriate use .................................................................................................... 3
2.3 Warning about incorrect use ................................................................................. 3
2.4 General safety instructions .................................................................................... 3
2.5 Radar frequencies for worldwide use ..................................................................... 4
2.6 Installation and operation in the USA and Canada ................................................. 4
2.7 Security information .............................................................................................. 4
3 Description ............................................................................................................................ 7
3.1 Configuration ........................................................................................................ 7
3.2 Principle of operation ............................................................................................ 8
3.3 Adjustment ........................................................................................................... 8
3.4 Packaging, transport and storage .......................................................................... 9
3.5 Accessories .......................................................................................................... 10
4 Installing/mounting ............................................................................................................. 11
4.1 General instructions ............................................................................................ 11
4.2 Mounting versions .............................................................................................. 11
4.3 Mounting instructions ......................................................................................... 12
4.4 Measurement setup - Flow .................................................................................. 15
5 Connecting .......................................................................................................................... 19
5.1 Preparing the connection .................................................................................... 19
5.2 Wiring plan ......................................................................................................... 20
5.3 Switch-on phase .................................................................................................. 20
6 Access protection ................................................................................................................ 21
6.1 Bluetooth radio interface ..................................................................................... 21
6.2 Protection of the parameterization ...................................................................... 21
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Table of contents
7 Setup with smart device (Bluetooth) .................................................................................. 23
7.1 Connecting .......................................................................................................... 23
8 Operating ............................................................................................................................. 25
9 Setup with SIMATIC PDM EDD ............................................................................................ 31
9.1 Setup with SIMATICPDMEDD ............................................................................. 31
10 Diagnostics and troubleshooting ........................................................................................ 35
10.1 Maintenance ....................................................................................................... 35
10.2 Rectify faults ....................................................................................................... 35
10.3 Diagnosis, fault messages ................................................................................... 36
10.4 Status messages according to NE107 ................................................................. 36
10.5 Treatment of measurement errors ....................................................................... 40
10.6 Return procedure ................................................................................................ 45
10.7 Technical support ................................................................................................ 45
10.8 How to proceed if a repair is necessary ............................................................... 46
11 Service and maintenance .................................................................................................... 47
11.1 Dismounting steps .............................................................................................. 47
11.2 Disposal .............................................................................................................. 47
12 Certificates and approvals .................................................................................................. 49
12.1 Radio licenses ..................................................................................................... 49
12.2 Approvals for Ex areas ......................................................................................... 49
12.3 Ship approvals ..................................................................................................... 49
12.4 Approvals as overfill protection ........................................................................... 49
12.5 Food and pharmaceutical certificates ................................................................... 50
12.6 Conformity .......................................................................................................... 50
12.7 NAMUR recommendations ................................................................................... 50
13 Technical data and dimensions .......................................................................................... 51
13.1 Technical data ..................................................................................................... 51
13.2 Dimensions ......................................................................................................... 55
13.3 Licensing information for open source software .................................................. 56
13.4 Trademark ........................................................................................................... 56
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Preface
Safety instructions for Ex areas:
WARNING
Take note of the Ex specific safety instructions for Ex applications. These instructions
are attached as documents to each transmitter with Ex approval and are part of the
operating instructions.
Editing status: 2023-10-26
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Preface
vi SITRANS LR120, HART
Operating Instructions, 10/2023, A5E49829026

Introduction 1
1.1 Function
This instruction provides all the information you need for mounting, connection
and setup as well as important instructions for maintenance, fault rectification,
safety and the exchange of parts. Please read this information before putting the
transmitter into operation and keep this manual accessible in the immediate vicinity
of the device.
1.2 Target group
This operating instructions manual is directed to trained personnel. The contents of
this manual must be made available to the qualified personnel and implemented.
1.3 Symbols used
Information, note, tip: This symbol indicates helpful additional information and
tips for successful work.
Note: This symbol indicates notes to prevent failures, malfunctions, damage to
devices or plants.
Caution: Non-observance of the information marked with this symbol may result
in personal injury.
Warning: Non-observance of the information marked with this symbol may result
in serious or fatal personal injury.
Danger: Non-observance of the information marked with this symbol results in
serious or fatal personal injury.
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Introduction
1.3Symbols used
Ex applications
This symbol indicates special instructions for Ex applications.
• List
The dot set in front indicates a list with no implied sequence.
1 Sequence of actions
Numbers set in front indicate successive steps in a procedure.
Disposal
This symbol indicates special instructions for disposal.
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Safety notes 2
2.1 Authorised personnel
All operations described in this documentation must be carried out only by trained
and authorized personnel.
During work on and with the device, the required personal protective equipment
must always be worn.
2.2 Appropriate use
SITRANS LR120 is a transmitter for continuous level measurement.
You can find detailed information about the area of application in chapter ""Product
description".
Operational reliability is ensured only if the transmitter is properly used according
to the specifications in the operating instructions manual as well as possible
supplementary instructions.
2.3 Warning about incorrect use
Inappropriate or incorrect use of this product can give rise to application-specific
hazards, e.g. vessel overfill through incorrect mounting or adjustment. Damage to
property and persons or environmental contamination can result. Also, the protective
characteristics of the transmitter can be impaired.
2.4 General safety instructions
This is a state-of-the-art transmitter complying with all prevailing regulations
and directives. The transmitter must only be operated in a technically flawless
and reliable condition. The operating company is responsible for the trouble-free
operation of the transmitter. When measuring aggressive or corrosive media that can
cause a dangerous situation if the transmitter malfunctions, the operating company
has to implement suitable measures to make sure the transmitter is functioning
properly.
The safety instructions in this operating instructions manual, the national installation
standards as well as the valid safety regulations and accident prevention rules must
be observed.
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Safety notes
2.5Radar frequencies for worldwide use
For safety and warranty reasons, any invasive work on the device beyond that
described in the operating instructions manual may be carried out only by personnel
authorised by us. Arbitrary conversions or modifications are explicitly forbidden. For
safety reasons, only the accessory specified by us must be used.
To avoid any danger, the safety approval markings and safety tips on the device must
also be observed.
The low transmitting power of the radar transmitter is far below the internationally
approved limits. No health impairments are to be expected with intended use. The
band range of the measuring frequency can be found in chapter ""Technical data".
2.5 Radar frequencies for worldwide use
Country or region specific settings for the radar signals are determined via the
frequency. The operating mode must be set in the operating menu via Sitrans mobile
IQ App at the beginning of the setup.
WARNING
Operating the device without selecting the frequency for the appropriate country or
region group constitutes a violation of the regulations of the radio approvals of the
respective country or region.
2.6 Installation and operation in the USA and Canada
This information is only valid for USA and Canada. Hence the following text is only
available in the English language.
Installations in the US shall comply with the relevant requirements of the National
Electrical Code (NEC - NFPA70) (USA).
Installations in Canada shall comply with the relevant requirements of the Canadian
Electrical Code (CEC Part I) (Canada).
A Class 2 power supply unit has to be used for the installation in the USA and
Canada.
2.7 Security information
Siemens provides products and solutions with industrial security functions that
support the secure operation of plants, systems, machines and networks.
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.
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Safety notes
2.7Security information
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.
firewalls 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 continous 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/industrialsecurity
SITRANS LR120, HART
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Safety notes
2.7Security information
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Description 3
3.1 Configuration
Scope of delivery
The scope of delivery encompasses:
• SITRANS LR120 radar transmitter
• Information sheet ""Documents and software" with:
• Transmitter serial number
• QR code with link for direct scanning
• Information sheet ""Device Bluetooth and Parameter Access Codes" with:
• Bluetooth PIN
• Bluetooth PUK
• Device Access PUK
The further scope of delivery encompasses:
• Documentation
• Ex-specific ""Safety instructions" (with Ex versions)
• Radio licenses
• If necessary, further certificates
Note
Optional transmitter features are also described in this operating instructions
manual. The respective scope of delivery results from the order specification.
Constituent parts
1 Radar antenna
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Description
3.2Principle of operation
2 Electronics housing
3 Mounting thread
4 Connection cable
Figure3.1 Components of SITRANS LR120
Nameplate
The nameplate contains the most important data for identification and use of the
transmitter:
• Transmitter type
• Information about approvals
• Configuration information
• Technical data
• Serial number of the transmitter
• QR code for device identification
• Numerical code for Bluetooth access (optional)
• Manufacturer information
3.2 Principle of operation
Application area
SITRANS LR120 is a radar transmitter for non-contact, continuous level
measurement. It is suitable for liquids and solids in practically all industries.
Functional principle
The transmitter emits a continuous, frequency-modulated radar signal through its
antenna. The emitted signal is reflected by the medium and received by the antenna
as an echo with modified frequency. The frequency change is proportional to the
distance and is converted into the level.
3.3 Adjustment
Wireless adjustment
Devices with integrated Bluetooth module can be adjusted wirelessly via
SiemensmobileIQapp.
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Description
3.4Packaging, transport and storage
1 Transmitter
2 Smart device
Figure3.2 Wireless connection to standard operating devices with integrated BluetoothLE
Adjustment via the signal cable
Devices with signal output 4…20mA/HART can also be operated via a signal cable.
This is done via an interface adapter and a PC/notebook using SIMATICPDM.
1 Transmitter
2 HART resistance 250Ω (optional depending on evaluation)
3 Control system
4 Handheld
Figure3.3 Connecting the PC to the signal cable
3.4 Packaging, transport and storage
Packaging
Your transmitter was protected by packaging during transport. Its capacity to handle
normal loads during transport is assured by a test based on ISO4180.
The packaging consists of environment-friendly, recyclable cardboard. For special
versions, PE foam or PE foil is also used. Dispose of the packaging material via
specialised recycling companies.
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Description
3.5Accessories
Transport
Transport must be carried out in due consideration of the notes on the transport
packaging. Nonobservance of these instructions can cause damage to the device.
Transport inspection
The delivery must be checked for completeness and possible transit damage
immediately at receipt. Ascertained transit damage or concealed defects must be
appropriately dealt with.
Storage
Up to the time of installation, the packages must be left closed and stored according
to the orientation and storage markings on the outside.
Unless otherwise indicated, the packages must be stored only under the following
conditions:
• Not in the open
• Dry and dust free
• Not exposed to corrosive media
• Protected against solar radiation
• Avoiding mechanical shock and vibration
Storage and transport temperature
• Storage and transport temperature see chapter ""Supplement - Technical data -
Ambient conditions"
• Relative moisture 20…85%
3.5 Accessories
Mounting strap
The mounting accessories are used for stable mounting of the device at the
measuring point. The parts are available in various versions and sizes.
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Installing/mounting 4
4.1 General instructions
Ambient conditions
The transmitter is suitable for standard and extended ambient conditions acc. to DIN/
EN/BSEN/IEC/ANSI/ISA/UL/CSA61010-1. It can be used indoors as well as outdoors.
Process conditions
Note
For safety reasons, the transmitter must only be operated within the permissible
process conditions. You can find detailed information on the process conditions in
chapter ""Technical data" of the operating instructions or on the nameplate.
Hence make sure before mounting that all parts of the transmitter exposed to the
process are suitable for the existing process conditions.
These are mainly:
• Active measuring component
• Process fitting
• Process seal
Process conditions in particular are:
• Process pressure
• Process temperature
• Chemical properties of the medium
• Abrasion and mechanical influences
4.2 Mounting versions
Mounting bracket
For the wall mounting, a mounting bracket with opening for thread G1 is
recommended. The mounting of the device in the bracket is carried out via the
supplied G1 counter nut of plastic. Take note of chapter ""Mounting instructions" for
the recommended distance to the wall.
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Installing/mounting
4.3Mounting instructions
Figure4.1 Mounting via a mounting bracket
4.3 Mounting instructions
Installation position
When mounting the device, keep a distance of at least 200mm (7.874in) from the
vessel wall. If the device is installed in the center of dished or round vessel tops,
multiple echoes can arise. However, these can be suppressed by an appropriate
adjustment (see chapter ""Setup").
If you cannot maintain this distance, you should carry out a auto false echo
suppression during setup. This applies particularly if buildup on the vessel wall is
expected. In such cases, we recommend repeating the auto false echo suppression at
a later date with existing buildup.
Figure4.2 Mounting of the radar transmitter on round vessel tops
Reference point
The centre of the antenna lens is the beginning of the measuring range and at the
same time the reference point for the min./max. adjustment, see following diagram:
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Installing/mounting
4.3Mounting instructions
1 Reference point
Figure4.3 Reference point
Inflowing medium
Do not mount the transmitters in or above the filling stream. Make sure that you
detect the medium surface, not the inflowing product.
Figure4.4 Mounting of the radar transmitter with inflowing medium
Nozzle
For nozzle mounting, the nozzle should be as short as possible and its end rounded.
This reduces false reflections from the nozzle.
The antenna edge should protrude at least 5mm (0.2in) out of the nozzle.
Figure4.5 Recommended nozzle mounting of SITRANS LR120
If the reflective properties of the medium are good, you can mount SITRANS LR120
on nozzles longer than the antenna. The nozzle end should be smooth and burr-free,
if possible also rounded.
Note
When mounting on longer nozzles, we recommend carrying out a auto false echo
suppression (see chapter ""Parameter adjustment").
You will find recommended values for nozzle heights in the following illustration or
the table. The values come from typical applications. Deviating from the proposed
dimensions, also longer nozzles are possible, however the local conditions must be
taken into account.
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