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Introduction1Safety ting5Commissioning6Remote operation7Service and maintenance8Technical data9Product documentation andsupportASITRANS LR250 with PROFIBUS PASITRANS LRadar level transmittersSITRANS LR250 with PROFIBUSPACompact Operating Instructions7ML5431 (LR250)7ML5432 (LR250 flanged encapsulated antenna)7ML5433 (LR250 hygienic encapsulated antenna)11/2019A5E48453206-AA
Legal informationWarning notice systemThis manual contains notices you have to observe in order to ensure your personal safety, as well as to preventdamage to property. The notices referring to your personal safety are highlighted in the manual by a safety alertsymbol, notices referring only to property damage have no safety alert symbol. These notices shown below aregraded according to the degree of danger.DANGERindicates that death or severe personal injury will result if proper precautions are not taken.WARNINGindicates that death or severe personal injury may result if proper precautions are not taken.CAUTIONindicates that minor personal injury can result if proper precautions are not taken.NOTICEindicates 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 willbe used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating toproperty damage.Qualified PersonnelThe product/system described in this documentation may be operated only by personnel qualified for the specifictask 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 andavoiding potential hazards when working with these products/systems.Proper use of Siemens productsNote the following:WARNINGSiemens products may only be used for the applications described in the catalog and in the relevant technicaldocumentation. If products and components from other manufacturers are used, these must be recommendedor approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation andmaintenance are required to ensure that the products operate safely and without any problems. The permissibleambient conditions must be complied with. The information in the relevant documentation must be observed.TrademarksAll names identified by are registered trademarks of Siemens AG. The remaining trademarks in this publicationmay be trademarks whose use by third parties for their own purposes could violate the rights of the owner.Disclaimer of LiabilityWe have reviewed the contents of this publication to ensure consistency with the hardware and softwaredescribed. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, theinformation in this publication is reviewed regularly and any necessary corrections are included in subsequenteditions.Siemens AGDigital IndustriesPostfach 48 4890026 NÜRNBERGGERMANYDocument order number: A5E48453206 01/2020 Subject to changeCopyright Siemens AG 2019.All rights reserved
Table of contents123Introduction. 51.1LR250 PA manual usage . 51.2Technical publications . 51.3Purpose of this documentation . 51.4Industrial use note . 51.5Checking the consignment . 61.6Security information. 61.7Transportation and storage. 71.8Notes on warranty . 7Safety information . ditions for safe use . 9Safety marking symbols. 9Laws and directives . 9FCC Conformity . 10Industry Canada conformity . 10Industry Canada conformity note . 11Conformity with European directives . 11Radio Equipment Directive (RED) 2014/53/EU . 12CE Electromagnetic Compatibility (EMC) Conformity . 122.2Improper device modifications . 132.3Requirements for special applications . 132.4Use in hazardous areas . 13Description . 153.14SITRANS LR250 overview . 15Installing/mounting. 174.14.1.14.1.24.1.2.1Basic safety information. 17Unsuitable cables, cable glands and/or plugs . 18Pressure applications . 18Pressure Equipment Directive, PED, 14/68/EU . 194.2Installation location requirements. 194.34.3.14.3.24.3.3Proper mounting . 20Mounting location . 20Nozzle design. 21Nozzle location . 224.44.4.1Installation instructions . 24Threaded versions. 25SITRANS LR250 with PROFIBUS PACompact Operating Instructions, 11/2019, A5E48453206-AA3
Table of contents5674.4.24.4.3Flanged versions .25Hygienic versions .274.5Disassembly.28Connecting. 295.1Basic safety information .295.2Connecting SITRANS LR250.305.35.3.15.3.2Wiring setups for hazardous area installations .32Intrinsically safe wiring.33Non-sparking wiring .345.45.4.1Instructions specific to hazardous area installations .34(Reference European ATEX Directive 2014/34/EU) .34Commissioning . 376.1Basic safety information .376.26.2.16.2.26.2.36.2.46.2.5Programming SITRANS LR250 .37The LCD display.37Device status icons .39Handheld programmer (Part No. 7ML1930-1BK) .39Programming via the handheld programmer .41Quick Start Wizard via the handheld programmer .45Remote operation . 497.189Service and maintenance. 518.1Basic safety information .518.2Cleaning .518.38.3.18.3.2Maintenance and repair work.52Unit repair and excluded liability .53Part replacement .538.4Disposal .548.58.5.1Return procedure .54Return procedure .54Technical data . 559.1ASITRANS Communications: PROFIBUS PA .49Power .56Product documentation and support . 57A.1Product documentation.57A.2Technical support .58Index . 59SITRANS LR250 with PROFIBUS PA4Compact Operating Instructions, 11/2019, A5E48453206-AA
Introduction1.11LR250 PA manual usageNoteThis manual applies to the SITRANS LR250 (PROFIBUS PA) only.1.2Technical publicationsFollow these operating instructions for quick, trouble-free installation, and maximumaccuracy and reliability of your device.We always welcome suggestions and comments about manual content, design, andaccessibility. Please direct your comments to:Technical publications (mailto:techpubs.smpi@siemens.com)1.3Purpose of this documentationThese instructions are a brief summary of important features, functions and safetyinformation, and contain all information required for safe use of the device. Read theinstructions carefully prior to installation and commissioning. In order to use the devicecorrectly, first 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.Complete operating instructions can be downloaded from our web site:Product page (http://www.siemens.com/LR250)The printed manual is available from your local Siemens representative.1.4Industrial use noteNOTICEUse in a domestic environmentThis Class B Group 1 equipment is intended for use in industrial areas.In a domestic environment this device may cause radio interference.SITRANS LR250 with PROFIBUS PACompact Operating Instructions, 11/2019, A5E48453206-AA5
Introduction1.5 Checking the consignment1.5Checking the consignment1. 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 clarification.4. Check the scope of delivery by comparing your order to the shipping documents forcorrectness and completeness.WARNINGUsing a damaged or incomplete deviceRisk of explosion in hazardous areas. Do not use damaged or incomplete devices.1.6Security informationSiemens provides products and solutions with industrial security functions that support thesecure operation of plants, systems, machines, and networks.In order to protect plants, systems, machines and networks against cyber threats, it isnecessary to implement – and continuously maintain – a holistic, state-of-the-art industrialsecurity concept. Siemens’ products and solutions only form one element of such a concept.Customer is responsible to prevent unauthorized access to its plants, systems, machinesand networks. Systems, machines and components should only be connected to theenterprise network or the internet if and to the extent necessary and with appropriate securitymeasures (e.g. use of firewalls and network segmentation) in place.Additionally, Siemens’ guidance on appropriate security measures should be taken intoaccount. You can find more information about industrial security by .Siemens’ products and solutions undergo continuous development to make them moresecure. Siemens strongly recommends to apply product updates as soon as available and toalways use the latest product versions. Use of product versions that are no longer supported,and failure to apply latest updates may increase customer’s exposure to cyber threats.To stay informed about product updates, subscribe to the Siemens Industrial Security RSSFeed RANS LR250 with PROFIBUS PA6Compact Operating Instructions, 11/2019, A5E48453206-AA
Introduction1.7 Transportation and storage1.7Transportation and storageTo guarantee sufficient 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 properlypackaged to provide sufficient protection during transport. Siemens cannot assumeliability for any costs associated with transportation damages.CAUTIONInsufficient protection during storageThe packaging only provides limited protection against moisture and infiltration. Provide additional packaging as necessary.1.8Notes on warrantyThe contents of this manual shall not become part of or modify any prior or existingagreement, commitment or legal relationship. The sales contract contains all obligations onthe part of Siemens as well as the complete and solely applicable warranty conditions. Anystatements regarding device versions described in the manual do not create new warrantiesor modify the existing warranty.The content reflects the technical status at the time of publishing. Siemens reserves the rightto make technical changes in the course of further development.SITRANS LR250 with PROFIBUS PACompact Operating Instructions, 11/2019, A5E48453206-AA7
Introduction1.8 Notes on warrantySITRANS LR250 with PROFIBUS PA8Compact Operating Instructions, 11/2019, A5E48453206-AA
2Safety information2.1Preconditions for safe useThis device left the factory in good working condition. In order to maintain this status and toensure safe operation of the device, observe these instructions and all the specificationsrelevant to safety.Observe the information and symbols on the device. Do not remove any information orsymbols from the device. Always keep the information and symbols in a completely legiblestate.2.1.1Safety marking symbolsIn manualOn productDescriptionWARNING: refer to accompanying documents (manual) fordetails.(Label on product:yellow background.)2.1.2Laws and directivesObserve the test certification, provisions and laws applicable in your country duringconnection, assembly and operation.SITRANS LR250 with PROFIBUS PACompact Operating Instructions, 11/2019, A5E48453206-AA9
Safety information2.1 Preconditions for safe use2.1.3FCC ConformityUS Installations only: Federal Communications Commission (FCC) rulesNote This device has been tested and found to comply with the limits Class B digital devicepart 15 of the FCC Rules. These limits are designed to provide reasonable protectionagainst harmful interference when the equipment is operated in a commercialenvironment. This device has also been tested and found to comply with the limits §15.256, Subpart CIntentional radiators, pursuant to Part 15 of the FCC Rules. These limits are designed toprovide reasonable protection against harmful interference when the equipment isoperated in a commercial environment. This device generates, uses, and can radiate radio frequency energy and, if not installedand used in accordance with the instruction manual, may cause harmful interference toradio communications, in which case the user will be required to correct the interferenceat his/her own expense. This device is certified to measure levels in fixed or mobile enclosed tanks made frommetal, concrete or materials with similar RF attenuating properties. Devices equipped with the aluminum horn or the 3 inch or 4 inch stainless horn antennasmay be used to measure levels in open air environments or outside enclosed tanks,subject to the following conditions:– Devices shall be installed and maintained to ensure a vertically downward orientationof the transmit antenna’s main beam.– Devices shall be installed only at fixed locations. Devices shall not operate while beingmoved or while inside a moving container.– Hand-held applications and residential use are prohibited.2.1.4Industry Canada conformityCanada Installations only: Industry Canada (IC) rulesNOTICEUse on a "no-interference, no-protection" basisThe installation of the LPR/TLPR device shall be done by trained installers, in strictcompliance with the manufacturer's instructions. The use of this device is on a "no-interference, no-protection" basis. That is, the usershall accept operations of high-powered radar in the same frequency band which mayinterfere with or damage this device. However, devices found to interfere with primarylicensing operations will be required to be removed at the user's expense.SITRANS LR250 with PROFIBUS PA10Compact Operating Instructions, 11/2019, A5E48453206-AA
Safety information2.1 Preconditions for safe use2.1.5Industry Canada conformity noteNote This device has been tested and found to comply with the limits RS- 211 - Level ProbingRadar Equipment. These limits are designed to provide reasonable protection againstharmful interference when the equipment is operated in a commercial environment. This device is certified to measure levels in fixed or mobile enclosed tanks made frommetal, concrete or materials with similar RF attenuating properties. Devices equipped with the aluminum horn or the 3 inch or 4 inch stainless horn antennasmay be used to measure levels in open air environments or outside enclosed tanks,subject to the following conditions:– Devices shall be installed and maintained to ensure a vertically downward orientationof the transmit antenna’s main beam.– Devices shall be installed only at fixed locations. Devices shall not operate while beingmoved or while inside a moving container.– Hand-held applications and residential use are prohibited.2.1.6Conformity with European directivesThe CE marking on the device symbolizes the conformity with the following Europeandirectives:Electromagnetic compatibility EMC2014/30/EULow voltage directive LVD2014/35/EUAtmosphère explosibleATEX2014/34/EUPressure equipment directive PED2014/68/EURED2014/53/EUDirective of the European Parliament and of the Council on theharmonisation of the laws of the Member States relating to electromagnetic compatibilityDirective of the European Parliament and of the Council on theharmonisation of the laws of the Member States relating to themaking available on the market of electrical equipment designed for use within certain voltage limitsDirective of the European Parliament and the Council on theharmonisation of the laws of the Member States relating toequipment and protective systems intended for use in potentially explosive atmospheresDirective of the European Parliament and of the Council on theharmonisation of the laws of the Member States relating to themaking available on the market of pressure equipmentDirective of the European Parliament and of the Council on theharmonisation of the laws of the Member States relating to themaking available on the market of radio equipment and repealing Directive 1999/5/ECThe applicable directives can be found in the EC conformity declaration of the specificdevice.SITRANS LR250 with PROFIBUS PACompact Operating Instructions, 11/2019, A5E48453206-AA11
Safety information2.1 Preconditions for safe use2.1.7Radio Equipment Directive (RED) 2014/53/EUFor the receiver test that covers the influence of an interferer signal to the device, theperformance criterion has at least the following level of performance according to ETSI TS103 361 [6]: Performance criterion: measurement value variation Δd over time during a distancemeasurement Level of performance: Δd 50 mm2.1.8CE Electromagnetic Compatibility (EMC) ConformityThis equipment has been tested and found to comply with the following EMC Standards:EMC StandardTitleCISPR 11:2009 A1:2010/EN55011:2009 A1:2010, Class BLimits and methods of measurements of radio disturbance characteristics of industrial, scientific, andmedical (ISM) radio-frequency equipment.EN 61326:2013(IEC 61326:2012)Electrical Equipment for Measurement, Control andLaboratory Use – Electromagnetic Compatibility.EN61000-4-2:2009Electromagnetic Compatibility (EMC) Part 4-2: Testing and measurement techniques – Electrostatic discharge immunity test.EN61000-4-3:2006 A1:2008 A2:2010Electromagnetic Compatibility (EMC) Part 4-3: Testing and measurement techniques – Radiated, radiofrequency, electromagnetic field immunity test 2006 A1:2008 A2:2010.EN61000-4-4:2004 A1:2010Electromagnetic Compatibility (EMC) Part 4-4: Testing and measurement techniques – Electrical fasttransient/burst immunity test.EN61000-4-5:2006Electromagnetic Compatibility (EMC) Part 4-5: Testing and measurement techniques – Surge immunitytest.EN61000-4-6:2010Electromagnetic Compatibility (EMC) Part 4-6: Testing and measurement techniques – Immunity to conducted disturbances, induced by tic Compatibility (EMC) Part 4-8: Testing and measurement techniques – Power frequencymagnetic field immunity test.SITRANS LR250 with PROFIBUS PA12Compact Operating Instructions, 11/2019, A5E48453206-AA
Safety information2.2 Improper device modifications2.2Improper device modificationsWARNINGImproper device modificationsRisk 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. Failureto observe this requirement cancels the manufacturer's warranty and the productapprovals.2.3Requirements for special applicationsDue to the large number of possible applications, each detail of the described deviceversions for each possible scenario during commissioning, operation, maintenance oroperation in systems cannot be considered in the instructions. If you need additionalinformation not covered by these instructions, contact your local Siemens office or companyrepresentative.NoteOperation under special ambient conditionsWe highly recommend that you contact your Siemens representative or our applicationdepartment before you operate the device under special ambient conditions as can beencountered in nuclear power plants or when the device is used for research anddevelopment purposes.2.4Use in hazardous areasQualified personnel for hazardous area applicationsPersons who install, connect, commission, operate, and service the device in a hazardousarea must have the following specific qualifications: They are authorized, trained or instructed in operating and maintaining devices andsystems 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 forhazardous systems. They are trained or instructed in maintenance and use of appropriate safety equipmentaccording to the pertinent safety regulations.SITRANS LR250 with PROFIBUS PACompact Operating Instructions, 11/2019, A5E48453206-AA13
Safety information2.4 Use in hazardous areasWARNINGLoss 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 electricalspecifications have not been observed, the safety of the device is no longer ensured for usein hazardous areas. There is a danger of explosion. Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safecircuit. Observe the specifications for the electrical data on the certificate.SITRANS LR250 with PROFIBUS PA14Compact Operating Instructions, 11/2019, A5E48453206-AA
3Description3.1SITRANS LR250 overviewWARNINGLoss of protectionDanger to personnel, system and environment can result from improper use of the device. SITRANS LR250 is to be used only in the manner outlined in this manual, otherwiseprotection provided by the device may be impaired.SITRANS LR250 is a 2-wire 25 GHz pulse radar level transmitter for continuous monitoringof liquids and slurries in storage vessels including high pressure and high temperature, to arange of 20 meters (66 feet). It is ideal for small vessels, material such as chemicals, food,beverages, solvents (including those of corrosive or aggressive nature), and low dielectricmedia.The device consists of an electronic circuit coupled to a permanently attached antenna andeither a threaded or flange type process connection.This device supports PROFIBUS PA communication protocol, and SIMATIC PDM software.Signals are processed using Process Intelligence which has been field-proven in over1,000,000 applications worldwide (ultrasonic and radar). This device supports acycliccommunications from both a PROFIBUS Class I and Class II master.SITRANS LR250 with PROFIBUS PACompact Operating Instructions, 11/2019, A5E48453206-AA15
Description3.1 SITRANS LR250 overviewSITRANS LR250 with PROFIBUS PA16Compact Operating Instructions, 11/2019, A5E48453206-AA
Installing/mounting4.14Basic safety informationNoteMaterial compatibilitySiemens can provide you with support concerning selection of sensor components wetted byprocess media. However, you are responsible for the selection of components. Siemensaccepts no liability for faults or failures resulting from incompatible materials.WARNINGUnsuitable connecting partsRisk of injury or poisoning.In case of improper mounting, hot, toxic, and corrosive process media could be released atthe connections. Ensure that connecting parts (such as flange gaskets and bolts) are suitable forconnection and process media.WARNINGExceeded maximum ambient or process media temperatureDanger of explosion in hazardous areas.Device damage. Make sure that the maximum permissible ambient and process media temperatures ofthe de
SITRANS LR250 with PROFIBUS PA . SITRANS L Radar level transmitters SITRANS LR250 with PROFIBUS PA . machines and networks against cyber threats, it is necessary to implement - and continuously maintain - a holistic, state-of-the-art industrial . to make technical changes in the course of further development. Introduction 1.8 Notes on .
