Siemens SITRANS L Series Compact Operating Instructions
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Siemens SITRANS L Series Compact Operating Instructions

Siemens SITRANS L Series Compact Operating Instructions

Radar level transmitters with profibus pa
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SITRANS LR250 with PROFIBUS PA
SITRANS L
Radar level transmitters
SITRANS LR250 with PROFIBUS
PA
Compact Operating Instructions
7ML5431 (LR250)
7ML5432 (LR250 flanged encapsulated antenna)
7ML5433 (LR250 hygienic encapsulated antenna)
11/2019
A5E48453206-AA
Introduction
Safety information
Description
Installing/mounting
Connecting
Commissioning
Remote operation
Service and maintenance
Technical data
Product documentation and
support
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Summary of Contents for Siemens SITRANS L Series

  • Page 1 Introduction SITRANS LR250 with PROFIBUS PA Safety information Description SITRANS L Installing/mounting Radar level transmitters SITRANS LR250 with PROFIBUS Connecting Commissioning Compact Operating Instructions Remote operation Service and maintenance Technical data Product documentation and support 7ML5431 (LR250) 7ML5432 (LR250 flanged encapsulated antenna) 7ML5433 (LR250 hygienic encapsulated antenna) 11/2019 A5E48453206-AA...
  • Page 2 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.

  • Page 3: Table Of Contents

    Table of contents Introduction........................... 5 LR250 PA manual usage ..................... 5 Technical publications ......................5 Purpose of this documentation .................... 5 Industrial use note ....................... 5 Checking the consignment ....................6 Security information ......................6 Transportation and storage ....................7 Notes on warranty .......................
  • Page 4 Table of contents 4.4.2 Flanged versions ........................25 4.4.3 Hygienic versions .......................27 Disassembly ........................28 Connecting ..........................29 Basic safety information .....................29 Connecting SITRANS LR250....................30 Wiring setups for hazardous area installations ..............32 5.3.1 Intrinsically safe wiring......................33 5.3.2 Non-sparking wiring ......................34 Instructions specific to hazardous area installations ............34 5.4.1 (Reference European ATEX Directive 2014/34/EU) ............34 Commissioning ...........................

  • Page 5: Introduction

    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. Industrial use note NOTICE Use in a domestic environment This Class B Group 1 equipment is intended for use in industrial areas.

  • Page 6: Checking The Consignment

    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 only form one element of such a concept. Customer is responsible to prevent unauthorized access to its plants, systems, machines and networks.

  • Page 7: Transportation And Storage

    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.
  • Page 8 Introduction 1.8 Notes on warranty SITRANS LR250 with PROFIBUS PA Compact Operating Instructions, 11/2019, A5E48453206-AA...

  • Page 9: Safety Information

    Safety information Preconditions for safe 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 specifications relevant to safety. Observe the information and symbols on the device. Do not remove any information or symbols from the device.

  • Page 10: Fcc Conformity

    Safety information 2.1 Preconditions for safe use 2.1.3 FCC Conformity US Installations only: Federal Communications Commission (FCC) rules Note • This device has been tested and found to comply with the limits Class B digital device part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

  • Page 11: Industry Canada Conformity Note

    Safety information 2.1 Preconditions for safe use 2.1.5 Industry Canada conformity note Note • This device has been tested and found to comply with the limits RS- 211 - Level Probing Radar Equipment. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.

  • Page 12: Radio Equipment Directive (Red) 2014/53/Eu

    Safety information 2.1 Preconditions for safe use 2.1.7 Radio Equipment Directive (RED) 2014/53/EU For the receiver test that covers the influence of an interferer signal to the device, the performance criterion has at least the following level of performance according to ETSI TS 103 361 [6]: ●...

  • Page 13: Improper Device Modifications

    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 office or company representative. Note...
  • Page 14 Safety information 2.4 Use in hazardous areas 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.

  • Page 15: Description

    Description SITRANS LR250 overview WARNING Loss of protection Danger 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, otherwise protection provided by the device may be impaired. SITRANS LR250 is a 2-wire 25 GHz pulse radar level transmitter for continuous monitoring of liquids and slurries in storage vessels including high pressure and high temperature, to a range of 20 meters (66 feet).
  • Page 16 Description 3.1 SITRANS LR250 overview SITRANS LR250 with PROFIBUS PA Compact Operating Instructions, 11/2019, A5E48453206-AA...

  • Page 17: Installing/Mounting

    Basic safety information Note Material compatibility Siemens can provide you with support concerning selection of sensor components wetted by process media. However, you are responsible for the selection of components. Siemens accepts no liability for faults or failures resulting from incompatible materials.

  • Page 18: Unsuitable Cables, Cable Glands And/Or Plugs

    Installing/mounting 4.1 Basic safety information 4.1.1 Unsuitable cables, cable glands and/or plugs WARNING Unsuitable cables, cable glands and/or plugs Risk of explosion in hazardous areas. • Use only cable glands/plugs that comply with the requirements for the relevant type of protection.

  • Page 19: Pressure Equipment Directive, Ped, 14/68/Eu

    4.1.2.1 Pressure Equipment Directive, PED, 14/68/EU Siemens Level Transmitters with flanged, threaded, or sanitary clamp type process mounts have no pressure-bearing housing of their own and, therefore, do not come under the Pressure Equipment Directive as pressure or safety accessories (see EU Commission Guideline A-08 and A-20).

  • Page 20: Proper Mounting

    Installing/mounting 4.3 Proper mounting NOTICE Direct sunlight Device damage. 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 data (Page 55).

  • Page 21: Nozzle Design

    Installing/mounting 4.3 Proper mounting Note • On devices with a removable head, there is no limit to the number of times a device can be rotated without damage. • When mounting, orient the front or back of the device towards the closest vessel wall or obstruction.

  • Page 22: Nozzle Location

    Installing/mounting 4.3 Proper mounting ● The end of the antenna must protrude a minimum of 10 mm (0.4") to avoid false echoes being reflected from the nozzle ● Minimum recommended nozzle diameter for the threaded PVDF antenna is 50 mm (2"). ●...
  • Page 23 Installing/mounting 4.3 Proper mounting ① Emission cone ② Beam angle Emission cone type and beam angle Antenna type Antenna size Beam angle Horn 1.5" 19° 2" 15° 3" 10° 4" 8° Threaded PVDF 19° Process connection Process connection type size PTFE flanged encapsulated 2"...

  • Page 24: Installation Instructions

    Installing/mounting 4.4 Installation instructions Emission cone ● Keep emission cone free of interference from obstructions such as ladders, pipes, I- beams, or filling streams. Access for programming ● Provide easy access for viewing the display and programming via the handheld programmer.

  • Page 25: Threaded Versions

    Installing/mounting 4.4 Installation instructions Note Do not remove the PTFE or polypropylene lens. It is a critical component for operation. Note The outer part of the lens on the PTFE flanged encapsulated antenna version may not appear to lie flush before installation and this is normal. This will flatten after installation and will not impact the performance of the device.
  • Page 26 Installing/mounting 4.4 Installation instructions Flange bolting: recommended torque Pressure class Nominal pipe size Number of bolts Recommended torque (NPS) (Nm) ASME B16.5, Class 2" 30 – 50 3" 50 – 70 4" 40 – 60 6" 70 – 90 EN1092-1, PN16 / DN50/50A 30 –...

  • Page 27: Hygienic Versions

    Installing/mounting 4.4 Installation instructions Recommendations for flange bolting: ● Check bolts periodically, re-torque as required. ● Use new lens, O-ring and spring washers after removal from installation. For instructions on replacing the lens, see Part replacement (Page 53). For more details, see dimension drawings in full operating instructions. 4.4.3 Hygienic versions WARNING...

  • Page 28: Disassembly

    Installing/mounting 4.5 Disassembly Hygienic encapsulated antenna leak detection port ① Orientation mark for leak detection port ② Leak detection port Disassembly 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.

  • Page 29: Connecting

    Connecting Basic safety information NOTICE Condensation in the device Damage to device through formation of condensation if the temperature difference between transportation or storage and the mounting location exceeds 20 °C (36 °F). • Before taking the device into operation, let the device adapt for several hours in the new environment.

  • Page 30: Connecting Sitrans Lr250

    Connecting 5.2 Connecting SITRANS LR250 Connecting SITRANS LR250 WARNING Incorrect connection to power source Risk to personnel, system and environment can result from improper power connection. • The DC input terminals shall be supplied from a source providing electrical isolation between the input and output, in order to meet the applicable safety requirements of IEC 61010-1.
  • Page 31 Connecting 5.2 Connecting SITRANS LR250 Wiring instructions 1. Strip the cable jacket for approximately 70 mm (2.75") from the end of the cable, and thread the wires through the gland. (If cable is routed through conduit, use only approved suitable-size hubs for waterproof applications.) 2.

  • Page 32: Wiring Setups For Hazardous Area Installations

    Connecting 5.3 Wiring setups for hazardous area installations Basic PLC configuration with PROFIBUS PA ① ④ Active PLC DP/PA coupler ② ⑤ PROFIBUS DP PROFIBUS PA ③ ⑥ PC/laptop SITRANS LR250 (PROFIBUS PA) Wiring setups for hazardous area installations In all cases, check the device nameplate, full operating instructions, and process connection tag to confirm the approval rating, and perform installation and wiring according to your local safety codes.

  • Page 33: Intrinsically Safe Wiring

    The ATEX and INMETRO certificates listed on the nameplate can be downloaded from our website: Product page (http://www.siemens.com/LR250) Go to Support > Approvals / Certificates. The IECEx certificate listed on the nameplate can be viewed on the IECEx website. Go to: IECEx (http://iecex.iec.ch/)

  • Page 34: Non-Sparking Wiring

    5.4 Instructions specific to hazardous area installations 5.3.2 Non-sparking wiring The ATEX certificate listed on the nameplate can be downloaded from our website: Product page (http://www.siemens.com/LR250) Instructions specific to hazardous area installations 5.4.1 (Reference European ATEX Directive 2014/34/EU) The following instructions apply to equipment covered by certificate number SIRA 06ATEX2359X and SIRA 09ATEX4154X: 1.
  • Page 35 Connecting 5.4 Instructions specific to hazardous area installations Special conditions for safe use (denoted by X after the certificate number) ● Parts of the enclosure may be non-conducting and may generate an ignition-capable level of electrostatic charge under certain extreme conditions. The user should ensure that the equipment is not installed in a location where it may be subjected to external conditions (such as high-pressure steam), which might cause a build-up of electrostatic charge on non-conducting surfaces.
  • Page 36 Connecting 5.4 Instructions specific to hazardous area installations SITRANS LR250 with PROFIBUS PA Compact Operating Instructions, 11/2019, A5E48453206-AA...

  • Page 37: Commissioning

    Commissioning Basic safety information WARNING Loss of explosion protection Risk of explosion when device is not properly commissioned If opening device • Isolate from power. - or - • Ensure that the atmosphere is explosion-free (hot work permit). Ensure device is properly closed before returning to operation. Programming SITRANS LR250 ●...
  • Page 38 Commissioning 6.2 Programming SITRANS LR250 Normal operation ① ⑤ Toggle indicator for analog input function Bar graph indicates level blocks (AIFB 1 or AIFB 2) ② ⑥ Identifies which AIFB is source of dis- Secondary region indicates on request played value electronics temperature, echo confidence, or distance ③...

  • Page 39: Device Status Icons

    Commissioning 6.2 Programming SITRANS LR250 ● A visible menu bar indicates the menu list is too long to display all items. ● A band halfway down the menu bar indicates the current item is halfway down the list. ● The depth and relative position of the item band on the menu bar indicates the length of the menu list, and approximate position of the current item in the list.
  • Page 40 Commissioning 6.2 Programming SITRANS LR250 Lithium batteries are primary power sources with high energy content designed to provide the highest possible degree of safety. WARNING Potential hazard Lithium batteries may present a potential hazard if they are abused electrically or mechanically.

  • Page 41: Programming Via The Handheld Programmer

    Commissioning 6.2 Programming SITRANS LR250 6.2.4 Programming via the handheld programmer Note • While the device is in PROGRAM mode the output remains active and continues to respond to changes in the device. • The device automatically returns to Measurement mode after a period of inactivity in PROGRAM mode (between 15 seconds and 2 minutes, depending on the menu level).
  • Page 42 Commissioning 6.2 Programming SITRANS LR250 2. Navigating: key functions in Navigation mode Note • In navigation mode ARROW keys move to the next menu item in the direction of the arrow. • For Quick Access to parameters via the handheld programmer, press Home , then enter the menu number, for example: (2.4.1.) Volume.
  • Page 43 Commissioning 6.2 Programming SITRANS LR250 4. Changing a numeric value ● Navigate to the desired parameter. ● Press RIGHT arrow to open parameter view. The current value is displayed. ● Press RIGHT arrow again to open Edit mode. The current value is highlighted. ●...
  • Page 44 Commissioning 6.2 Programming SITRANS LR250 Key functions in edit mode Name Function UP or DOWN arrow Selecting Scrolls to item. options Numeric Increments or decrements digits • editing Toggles plus and minus sign • RIGHT arrow Selecting Accepts the data (writes the parame- •...

  • Page 45: Quick Start Wizard Via The Handheld Programmer

    Commissioning 6.2 Programming SITRANS LR250 6.2.5 Quick Start Wizard via the handheld programmer Parameter menus Note For the complete list of parameters with instructions, and Dimension drawings, see the full operating instructions. 1. Quick Start ● Point the programmer at the display from a maximum distance of 300 mm (1 ft), then press RIGHT arrow to activate PROGRAM mode and open menu level 1.
  • Page 46 Commissioning 6.2 Programming SITRANS LR250 1.4 Units Sensor measurement units. Options m, cm, mm, ft, in. 1.5 Operating mode Operation Description NO SERVICE Measurement and associated loop current are not updated, and the device de- faults to Fail-safe mode LEVEL Distance to material surface referenced from Low Calibration Point SPACE Distance to material surface referenced from High Calibration Point...
  • Page 47 Commissioning 6.2 Programming SITRANS LR250 SITRANS LR250 with PROFIBUS PA Compact Operating Instructions, 11/2019, A5E48453206-AA...

  • Page 49: Remote Operation

    Remote operation SITRANS Communications: PROFIBUS PA ● You will need the full operating instructions to acquire the list of applicable parameters. ● We recommend that you use SIMATIC Process Device Manager (PDM) to program your device. SITRANS LR250 with PROFIBUS PA Compact Operating Instructions, 11/2019, A5E48453206-AA...
  • Page 50 Remote operation 7.1 SITRANS Communications: PROFIBUS PA SITRANS LR250 with PROFIBUS PA Compact Operating Instructions, 11/2019, A5E48453206-AA...

  • Page 51: Service And Maintenance

    Service and maintenance Basic safety information WARNING Impermissible repair of the device • Repair must be carried out by Siemens authorized personnel only. CAUTION Releasing button lock Improper modification of parameters could influence process safety. • Make sure that only authorized personnel may cancel the button locking of devices for safety-related applications.

  • Page 52: Maintenance And Repair Work

    Service and maintenance 8.3 Maintenance and repair work WARNING Electrostatic charge Danger of explosion in hazardous areas if electrostatic charges develop, for example, when cleaning plastic surfaces with a dry cloth. • Prevent electrostatic charging in hazardous areas. Maintenance and repair work The device is maintenance-free.

  • Page 53: Unit Repair And Excluded Liability

    Replacing the antenna Changing to a different antenna type may be performed by a Siemens authorized repair center or personnel. If the electronics or enclosure require replacement due to damage or failure, please ensure the correct antenna version is used, otherwise a re-calibration will need to be performed by Siemens authorized personnel.

  • Page 54: Disposal

    Observe the specific regulations valid in your country. Further information about devices containing batteries can be found at: Information about battery / product return (WEEE) (https://support.industry.siemens.com/cs/document/109479891/) Return procedure 8.5.1 Return procedure Enclose the bill of lading, return document and decontamination certificate in a clear plastic pouch and attach it firmly to the outside of the packaging.

  • Page 55: Technical Data

    Technical data Note Device specifications Siemens makes every attempt to ensure the accuracy of these specifications but reserves the right to change them at any time. For a complete listing, including Approvals, see the full operating instructions. Note • The maximum temperature is dependent on the process connection, antenna materials, and vessel pressure.

  • Page 56: Power

    Technical data 9.1 Power Power Bus powered Per IEC 61158-2 (PROFIBUS PA) Current consumed 15 mA SITRANS LR250 with PROFIBUS PA Compact Operating Instructions, 11/2019, A5E48453206-AA...

  • Page 57: Product Documentation And Support

    Entering a serial number 1. Open the PIA Life Cycle Portal (https://www.pia-portal.automation.siemens.com). 2. Select the desired language. 3. Enter the serial number of your device. The product documentation relevant for your device is displayed and can be downloaded.

  • Page 58: Technical Support

    In addition to our technical support, Siemens offers comprehensive online services at Service & Support (http://www.siemens.com/automation/service&support). Contact If you have further questions about the device, contact your local Siemens representative at Personal Contact (http://www.automation.siemens.com/partner). To find the contact for your product, go to "all products and branches" and select "Products &...

  • Page 59: Index

    Index ambient temperature, 55 flange antenna bolting instructions, 26 replacement, 53 function keys edit mode, 44 navigation mode, 42 Function keys measurement mode, 40 bolting instructions, 26 handheld programmer cables edit mode, 42, 44 requirements, 30 measurement mode, 40 Catalog navigation, 42, 42 catalog sheets, 57 programming, 41...
  • Page 60 Index Lithium batteries Safety, 40 repair Local User Interface (LUI), 38 cautions, 53 LUI (Local User Interface excluded liability, 53 contrast adjustment, 38 Return procedure, 54 maintenance Scope of delivery, 6 repairs, 51 Service, 58 replacing antenna, 53 Service and support replacing lens, 53 Internet, 58 Maintenance, 52...

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