Siemens LR250 Instruction Manual
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Siemens LR250 Instruction Manual

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Summary of Contents for Siemens LR250

  • Page 1 P R O D U C T I N S T R U C T I O N MA N U A L V 1 . 0 MA Y 2 0 1 6 S I T R A N S R A D A R L E V E L T R A N S MI T T E R MO D E L S : L R 2 5 0 2 0 1 S O U T H H O U S T O N A V E .
  • Page 2 The user is responsible for all changes and repairs made to the device by the user or the user’s agent.  All new components are to be provided by Siemens Milltronics Process Instruments.  Restrict repair to faulty components only.

  • Page 3: Table Of Contents

    Safety Notes .............................1 Safety marking symbols ......................1 FCC Conformity ............................1 CE Electromagnetic Compatibility (EMC) Conformity ..............2 The Manual ...............................2 Technical Support ............................3 SITRANS LR250 Overview ....................5 Specifications ........................8 Power............................. 8 Performance..........................8 Interface ............................9 Mechanical........................... 9 Environmental ..........................11 Process............................
  • Page 4 Instructions specific to hazardous area installations ..............32 Operating via the handheld programmer ..............33 Power up ..............................33 Handheld programmer functions ......................33 The LCD Display ...........................33 Handheld Programmer .......................34 Programming ............................35 Quick Start Wizard via the handheld programmer .............38 Auto Falso Echo Suppression ....................41 Requesting an Echo Profile .......................41 Level application example ........................42 Operating via SIMATIC PDM ..................43...
  • Page 5 Quick Start......................... 64 Linearization ........................65 Using Linearization via the Quick Start wizard ............65 Changing parameter settings using AMS Device Manager......... 66 Operation........................... 66 Setup ..........................67 Signal Processing......................68 Local Display ........................70 Maintenance and Diagnostics ......................70 Communication ............................71 Security ..............................71 Device Diagnostics ..........................72 Process Variables ......................
  • Page 6 Sensor Mode ..........................137 Current Output Function ......................137 Loss of Echo (LOE) ........................138 Maximum Process Temperature Chart ..................139 Flange Adapter versions of SITRANS LR250 ..............139 Process Pressure/Temperature derating curves ................140 Horn Antenna or Wave Guide ....................141 1.5", 2" and 3" Threaded Versions................141 2"...
  • Page 7 Appendix F: HART Communications ................150 SIMATIC PDM ............................150 HART Electronic Device Description (EDD) ..................150 HART Handheld 375/475 ........................150 HART Communicator 375 Menu Structure ...................151 HART Version ............................153 Burst Mode ..........................153 HART Multidrop Mode ......................153 Glossary ..........................154 Appendix G: Firmware Revision History ..............158 Index ..........................

  • Page 9: Safety Notes

    FCC Conformity US Installations only: Federal Communications Commission (FCC) rules WARNING: Changes or modifications not expressly approved by Siemens Milltronics could void the user’s authority to operate the equipment. Notes: • This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.

  • Page 10: Ce Electromagnetic Compatibility (Emc) Conformity

    SITRANS LR250. • This manual applies to the SITRANS LR250 mA/HART version only. This manual will help you set up your SITRANS LR250 for optimum performance. We always welcome suggestions and comments about manual content, design, and accessibility.

  • Page 11: Technical Support

    Technical Support Support is available 24 hours a day. To find your local Siemens Automation Office address, phone number and fax number go www.siemens.com/automation/partner • Click on the tab Contact, select Service, then click Service again to find your product group (+Automation Technology >...
  • Page 12 Pressure Equipment Directive safety approval pico Farads parts per million Primary Variable measured value PVDF Polyvinylidene fluoride Secondary Variable equivalent value Transducer Block sensitivity Time Varying Threshold threshold Input voltage Output voltage Page 4 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 13: Sitrans Lr250 Overview

    (ultrasonic and radar). Programming SITRANS LR250 is very easy to install and configure via a graphical local user interface (LUI). You can modify the built in parameters either locally via the Siemens infrared handheld programmer, or from a remote location using one of the following options: •...
  • Page 14 Approvals and Certificates Approvals For further details see on page 11. Note: SITRANS LR250 is available with General Purpose approval, or for hazardous areas. In all cases, check the nameplate on your instrument, and confirm the approval rating. Application LR250 Approval Rating...
  • Page 15 Process Connections A wide range of process connections and antenna options is available to suit virtually any vessel configuration. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 7...

  • Page 16: Specifications

    Specifications Siemens Milltronics makes every attempt to ensure the accuracy of these Note: specifications but reserves the right to change them at any time. Power General Purpose Intrinsically Safe Nominal 24 V DC at 550 Ohm Non-Sparking/Energy Limited Non-incendive (FM/CSA US/Canada only)

  • Page 17: Interface

     1500 m (4921 ft) • Max. Line Length • Protocol HART, Version 5.1 Configuration • remote Siemens SIMATIC PDM or AMS Device Manager (PC) • local Siemens infrared handheld programmer, or HART handheld communicator Display (local) graphic LCD, with bar graph representing level...
  • Page 18 17.4 kg (38.3 lb) • DN 50/PN 16 raised-face flange with 2" horn antenna approx. 6 kg (13.2 lb) • DN 100/PN 40 raised-face flange with 4" horn antenna approx. 11.3 kg (24.9 lb) Page 10 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 19: Environmental

    Process Pressure/Temperature derating curves on page 140. Approvals The device nameplate lists the approvals that apply to your device. Note: • General FM, CE, C-TICK US/C • Radio Europe (R&TTE), FCC, Industry Canada 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 11...
  • Page 20 29 for more details. Non-Sparking/Energy Limited wiring on page 29 for more details. Non-incendive wiring (US/Canada only) on page 30 for more details. Flameproof wiring on page 30. Increased safety wiring on page 31. Page 12 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 21: Programmer (Infrared Keypad)

    • To estimate the lifetime expectancy, check the nameplate on the back for the serial number. The first six numbers show the production date (mmddyy), for example, serial number 032608101V. Siemens Milltronics Infrared IS (Intrinsically Safe) Handheld Programmer for hazardous and all other locations. • approvals FM/CSA Class I, II, III, Div.

  • Page 22: Dimensions

    • Process temperature and pressure capabilities are dependent upon information on the process connection tag. Reference drawing listed on the Tag is available on the product page of our website at www.siemens.com/LR250, under Support/ Installation drawings/Level Measurement/Continuous - Radar/LR250. Additional information on process connections is available on the Installation Drawings page under Process Connection Diagrams.

  • Page 23: Threaded Horn Dimensions

    184 mm (7.24") process 146 mm (5.74") connection sensor ref. point 121 mm (4.76") 2" thread threaded PVDF 49.5 mm (1.94") antenna O.D. antenna The color of the antenna may vary. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 15...

  • Page 24: Threaded Pvdf Antenna Dimensions

    Polarization reference point – 3dB in the direction of the polarization axis (see on page 25 for an illustration). Raised-Face Optional alloy N06022/2.4602 (Hastelloy®C-22 or equivalent). See Flange Dimensions on page 18. Page 16 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 25: Flanged Horn With Extension

    • Process temperature and pressure capabilities are dependent upon information on the process connection tag. Reference drawing listed on the Tag is available on the product page of our website at www.siemens.com/LR250, under Support/ Installation drawings/Level Measurement/Continuous - Radar/LR250. Additional information on process connections is available on the Installation Drawings page under Process Connection Diagrams.

  • Page 26: Raised-Face Flange Per En 1092-1

    PN 10/PN 16 DN 100 PN 10/PN 16 DN 150 PN 10/PN 16 DN 50 PN 25/PN 40 DN 80 PN 25/PN 40 DN 100 PN 25/PN 40 DN 150 PN 25/PN 40 Page 18 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 27: Flat-Face Flange

    Serial number: a unique number allotted to each flange, including the date of manufacture (MMDDYY) followed by a number from 001 to 999 (indicating the sequential unit produced). Flange series: the Siemens Milltronics drawing identification. Heat code: a flange material batch code identification.
  • Page 28 Serial number: a unique number allotted to each flange, including the date of manufacture (MMDDYY) followed by a number from 001 to 999 (indicating the sequential unit produced). Flange series: the Siemens Milltronics drawing identification. Nominal size: the flange size followed by the hole pattern for a particular flange class. For example, –...
  • Page 29 • Pressure Tag Family Series: the identification number used to indicate specific process connection information relating to operating conditions. BACK FACE Comments/Explanation Sample Text CRN 0Fxxxxx.5 Canadian Registration Number (CRN) 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 21...
  • Page 30 Notes Page 22 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 31: Installation

    Notes: • The process connection tag shall remain with the process pressure boundary assembly • SITRANS LR250 units are hydrostatically tested, meeting or exceeding the requirements of the ASME Boiler and Pressure Vessel Code and the European Pressure Equipment Directive.

  • Page 32: Pressure Equipment Directive, Ped, 97/23/Ec

    Pressure Equipment Directive, PED, 97/23/EC 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 1/8).

  • Page 33: Orientation In A Vessel With Obstructions

    A stillpipe or bypass pipe is used for products with a low dK , or when vortex or extremely turbulent conditions exist. It can also be used to provide optimum signal conditions on foaming materials. Dielectric constant of material measured on page 9. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 25...

  • Page 34: Installation Instructions

    Flat-Face Flange 18, and on page 19, for dimensions. Bad joints create reflections. To equalize pressure and keep the liquid level in the bypass constant with the liquid level in the vessel. Page 26 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 35: Wiring

    Tighten the gland to form a good seal. Close the lid before programming and device configuration. May be shipped with the device. If cable is routed through conduit, use only approved suitable-size hubs for waterproof applications. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 27...

  • Page 36: Wiring Setups For Hazardous Area Installations

    [resistor]) must be limited according to the allowable operating area as shown in Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking/Energy Lim- either ited, Non-incendive) Curve 2 (Flameproof, Increased Safety, on page 144 or Explosion-proof) on page 145. Page 28 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 37: Intrinsically Safe Wiring

    Assembled in Canada with domestic and imported parts The ATEX certificate listed on the nameplate can be downloaded from the product page of our website at: 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: http://iecex.iec.ch and click on Ex Equipment Certificates of Conformity then enter the...

  • Page 38: Non-Incendive Wiring (Us/Canada Only)

    Assembled in Canada with domestic and imported parts FM/CSA Class 1, Div 2 connection drawing number 23650673 can be downloaded from the product page of our website at: www.siemens.com/LR250. Go to Support > Installation Drawings > Level Measurement > Continuous - Radar.

  • Page 39: Increased Safety Wiring

    Assembled in Canada with domestic and imported parts The ATEX certificate can be downloaded from the product page of our website at: 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: http://iecex.iec.ch and click on Ex Equipment Certificates of Conformity then enter the...

  • Page 40: Instructions Specific To Hazardous Area Installations

    - Aggressive substances: for example, acidic liquids or gases that may attack metals, or solvents that may affect polymeric materials. - Suitable precautions: for example, establishing from the material’s data sheet that it is resistant to specific chemicals. Page 32 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 41: Operating Via The Handheld Programmer

    Operating via the handheld programmer Power up Power up the instrument. A transition screen showing first the Siemens logo and then the current firmware revision is displayed while the first measurement is being processed. SITRANS LR250 automatically starts up in Measurement mode. The first time the device is configured, you will be prompted to select a language (English, German, French, or Language 7.

  • Page 42: Handheld Programmer

    (Part No. 7ML1930-1BK) The programmer is ordered separately. Key functions in Measurement mode Function Result Updates the loop current. New value is displayed in LCD secondary region. Updates internal enclosure tem- perature reading. Page 34 SITRANS LR250 HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 43: Programming

    • While the device is in PROGRAM mode the output remains fixed and does not respond to changes in the device. • SITRANS LR250 automatically returns to Measurement mode after a period of inactivity in PROGRAM mode (between 15 seconds and 10 minutes, depending on the menu level).
  • Page 44 Open top level menu: menu 1. Editing in PROGRAM mode parameter name parameter Selecting a listed option number Navigate to the desired parameter. Press RIGHT arrow to open parameter view. current selection Page 36 SITRANS LR250 HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 45 Cancels Edit mode without changing the parameter options LEFT arrow - Moves cursor to plus/minus sign if this is the first key Numeric pressed editing - or moves cursor one space to the left. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 37...

  • Page 46: Quick Start Wizard Via The Handheld Programmer

    DOWN arrow to continue. At any time, you can press UP arrow to go back, or LEFT arrow to cancel and return to Measurement mode. Page 38 SITRANS LR250 HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 47 10.0 m/min (32.8 ft/min) Use a setting just faster than the maximum filling or emptying rate (whichever is greater). Units Sensor measurement units. m, cm, mm, ft, in. Options Default: m 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 39...
  • Page 48 EDIT Range: 0.00 to 20.00 m Values Dimensions The point from which High and Low Calibration points are referenced: see Flanged Horn with extension on page 14 and on page 17. Page 40 SITRANS LR250 HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 49: Auto Falso Echo Suppression

    Suppression to prevent false echo detection. See TVT setup (2.8.7.) on page 98 for instructions. This feature can also be used if SITRANS LR250 displays a false high level, or the reading is fluctuating between the correct level and a false high level.

  • Page 50: Level Application Example

    Resets Fill Rate and Empty Rate to 0.1 m/minute. Units Operation LEVEL Material level referenced from Low Cal. Point. Low Calibration Point 15.5 Process empty level. High Calibration Point Process full level. Page 42 SITRANS LR250 HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 51: Operating Via Simatic Pdm

    Operating via SIMATIC PDM SIMATIC PDM is a software package used to commission and maintain SITRANS LR250 and other process devices. Please consult the operating instructions or online help for details on using SIMATIC PDM. (You can find more information at www.siemens.com/simatic-pdm.)

  • Page 52: Features Of Simatic Pdm Rev. 5.2, Sp1

    If the Use FIFO buffers radio box is selected, click to deselect. Deselect Use FIFO buffers radio box Click OK to close out. Close all screens and then reboot.  Windows is a registered trademark of the Microsoft Corporation Page 44 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 53: Updating The Electronic Device Description (Edd)

    Updating the Electronic Device Description (EDD) You can locate the EDD in Device Catalog, under Sensors/Level/Echo/Siemens Milltronics/ SITRANS LR250. Check the product page of our website at: www.siemens.com/LR250, under Downloads, to make sure you have the latest version of SIMATIC PDM, the most recent Service Pack (SP) and the most recent hot fix (HF).
  • Page 54 PC/PG and ensure PDM is synchronized with the device. If required, change the language for the local user interface. Click on NEXT to accept the default values. (Description, Message, and Installation Date fields can be left blank.) Page 46 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 55 For a vessel with obstructions, see False Echo Suppression on page 53 Select the vessel shape, and click on NEXT. Application with Stillpipe on page 148 for a Low Dielectric Liquid application. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 47...
  • Page 56 Check parameter settings, and click on BACK to return and revise values, FINISH to save settings offline, or FINISH AND DOWNLOAD to save settings offline and transfer them to the device. The message Quick Start was successful will appear. Click on OK. Page 48 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 57: Changing Parameter Settings Using Simatic Pdm

    Many parameters are accessed via the 4-level menu in PDM. See pull-down menus below for the others. Launch SIMATIC PDM, connect to SITRANS LR250, and upload data from the device. Adjust parameter values in the parameter value field then click on Enter. The status fields read Changed.

  • Page 58: Echo Profile Utilities

    51 View Saved Echo Profiles • on page 51 TVT Shaper • on page 52 Auto False Echo Suppression • on page 53 Echo Setup • on page 55 Page 50 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 59: Echo Profile

    Click on the Save button and in the new window enter a name and click on OK. • Click on OK to exit. View Saved Echo Profiles To view a saved profile, click on the tab View Saved Echo Profiles. Resolution Echo Profile Time Based Storage 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 51...

  • Page 60: Tvt Shaper

    Change the position of the cursor on the TVT using the Point+ and Point– buttons: raise and lower the TVT using Offset+ and Offset–. • Alternatively, enter values for Point and Offset directly into the dialog boxes. • Click on Transfer to Device. Page 52 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 61: Auto False Echo Suppression

    Determine Auto False Echo Suppression Range. Measure the actual distance from the sensor reference point to the material surface using a rope or tape measure. Subtract 0.5 m (20") from this distance, and use the resulting value. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 53...
  • Page 62 Before Auto False Echo Suppression default TVT material level Hover false echo Level echo marker After Auto False Echo Suppression material level Auto False Echo Suppression Range default learned TVT echo false echo marker Page 54 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 63: Echo Setup

    • sensor maintenance based on its projected lifetime • service • calibration To set Device/Sensor Maintenance schedules: Open the menu Device – Maintenance, and click on the Remaining Device/Sensor Lifetime tab. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 55...

  • Page 64: Select Analog Output

    [new value]’ appears. Click on OK. The Loop Test window remains open. When you are ready to end simulation, select End and click on OK to return the device to the actual output value. Page 56 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 65: Configuration Flag Reset

    The preamble consists of three or more hexadecimal FF characters (all 1s). This allows the receiving modem to get its frequency-detection circuits synchronized to the signal after any pause in transmission. We recommend you do not change the default value (5). 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 57...

  • Page 66: Process Variables

    Diagnostics > Electronics Temperature. Trend Open the menu View – Process Variables and click on Trend. 4 trend lines can be monitored: (distinguished by color in SIMATIC PDM). space distance volume level Page 58 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 67: Device Status

    Open a project, double-click on the device icon, and in the User window select Specialist. Open the menu Options – Settings and click on the Password tab. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 59...
  • Page 68 Enter a new password and re-enter it in the Confirmation window. Click on OK. Page 60 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 69: Operating Via Ams Device Manager

    Operating via AMS Device Manager AMS Device Manager is a software package used to commission and maintain SITRANS LR250 and other process devices. Please consult the operating instructions or online help for details on using AMS Device Manager. (You can find more information at http://www.emersonprocess.com/AMS/.) Application Guides for setting up Siemens HART...

  • Page 70: Electronic Device Description (Edd)

    Electronic Device Description (EDD) SITRANS LR250 requires the EDD for AMS Device Manager version 10.5. AMS 10. 1 and earlier versions are no longer supported. Configuring a new device Check the product page of our website at: www.siemens.com/LR250 to make sure you have the most recent EDD.

  • Page 71: Master Reset

    In the General field, click on Master Reset and perform a reset to Factory Defaults. Open the pull-down menu Actions – Scan Device to synchronize parameters (upload parameters from the device to AMS). Configure the device via the Quick Start wizard. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 63...

  • Page 72: Quick Start Wizard Via Ams Device Manager

    Step 2 – Application Click on Step 2. Select the application type (Level/vessel, Level/stillpipe, Level/bypass pipe, Volume/ vessel, Volume/stillpipe, or Volume/bypass pipe) and the material (Liquid or Low dielectric liquid). Click on Apply. Page 64 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 73: Linearization

    In Step 2 – Application, select a level application and liquid as a material. In Step 3 – Vessel Shape, choose the vessel shape option Linearization Table. In Step 4 – Ranges, enter a value for maximum volume. Breakpoints max. volume 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 65...

  • Page 74: Changing Parameter Settings Using Ams Device Manager

    56) Master Reset • Master Reset (see on page 57) Simulation/Test Self Test • Self Test (see on page 56) Loop Test • Loop Test (see on page 56) Page 66 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 75: Setup

    Rate [see on page 84] • Response Rate • Fill Rate per Minute • Empty Rate per Minute Fail-safe (2.5.) Fail-safe [see on page 86] • Material level • Timer • Level 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 67...

  • Page 76: Signal Processing

    Analog Output Scaling (2.6.) Analog Output Scaling [see on page 87] • Current Output Function • 4 mA Setpoint • 20 mA Setpoint • Minimum mA Limit • Maximum mA Limit Signal Processing Page 68 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 77 • Sampling Down Signal Quality • Confidence • Echo Strength • Noise Average Auto False Echo Suppression (2.8.7. 1 .) Modify the TVT to screen out false echoes [see page 134]. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 69...

  • Page 78: Local Display

    109] • Service Interval • Time Since Last Service • Time Until Next Service • Activation of Reminders • Reminder 1 before Service (Required) • Reminder 2 before Service (Demanded) Page 70 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 79: Communication

    Write Protect (read only) • Access Control Local Access (6.2.) Local Access [see on page 118] • Local Write Protected • PIN to Unlock Password Protection See also on page 73 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 71...

  • Page 80: Device Diagnostics

    To compare outputs in real time click on Process Variables at the bottom of the navigation window. for access to: Process Variables • Values (level, volume, space, distance) • Analog Output • Trend View Echo Profile Page 72 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 81: Password Protection

    The Add User Wizard dialog allows you to: • select a user type, standard (AMS Device Manager) or Window user. • enter the username and password, and set permissions • edit existing users 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 73...

  • Page 82: Ams Menu Structure

    Step 1 (Identification) Step 2 (Application) STep 3 (Vessel Shape) Step 4 (Ranges) Step 5 (Summary) Operation Operation General Select Analog Output Master Reset Simulation/Test Self Test Loop-Test Device Status Setup Sensor Sensor Page 74 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 83 Maximum mA Limit Device Status Linearization Vessel Shape Vessel Shape Vessel Shape Vessel Dimensions Maximum Volume Dimension A Dimension L Device Status Breakpoints Levels and Volume breakpoints Device status Vessel Shape 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 75...
  • Page 84 Auto False Echo Suppression Range Hover Level Shaper Mode Device Status TVT Shaper Breakpoints Device Status Shaper Mode Manual TVT Curve Manual TVT diagram Shaper Mode Echo Profile Echo Profile Device Status Page 76 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 85 Remaining Lifetime Activation of Reminders Reminder 1 before Lifetime (Required) Reminder 2 before Lifetime (Demanded) Device Status Service Schedule Service Schedule Service Interval Time Since Last Service Time Until Next Service 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 77...
  • Page 86 Lowest Value Highest Value Device Status Wear Wear Powered Days Poweron Resets Device Status Communication Communication Communication Manufacturer’s ID Device ID Product ID Device Revision EDD Revision Universal Command Revision Device Status Page 78 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 87 Security Security Remote Access Write Protect Access Control Local Access Local Write Protected PIN to Unlock Device Status 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 79...

  • Page 88: Operating Via Fdt (Field Device Tool)

    Product Information/Automation Technology/Sensor systems/Process Instrumentation/Software & Communications. The instrument EDD The SITRANS LR250 HART EDD for SITRANS DTM can be downloaded from the product page of our website at: www.siemens.com/LR250. Go to Support > Software Downloads. Configuring a new device via FDT An Application Guide can be downloaded from the product page of our website at: www.siemens.com/LR250 under Support.

  • Page 89: Parameter Reference

    64. 2. Setup Note: Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. 2.1. Device For AMS Device Manager the structure varies slightly. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 81...

  • Page 90: Sensor

    2.1.1. Hardware Revision Corresponds to the electronics hardware of the SITRANS LR250. 2.1.2. Firmware Revision Corresponds to the firmware that is embedded in the SITRANS LR250. 2.1.3. Loader Revision Corresponds to the software used to update the SITRANS LR250. 2.1.4. Order Option Read only.

  • Page 91: Calibration

    Units (2.2.1.) Related Far Range (2.8.2.) parameters Threaded Horn Antenna The point from which level measurement is referenced (see with extension Flanged Horn with extension on page 14 and on page 17, 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 83...

  • Page 92: Rate

    The value produced by the echo processing which represents the distance from sen- Threaded Horn Antenna with extension sor reference point to the target. (see on page Flanged Horn with extension 14 and on page 17). Page 84 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 93 2.4.2. Fill Rate per Minute Defines the maximum rate at which the reported sensor value is allowed to decrease. Allows you to adjust the SITRANS LR250 response to decreases in the actual material level. Fill Rate is automatically updated whenever Response Rate is altered.

  • Page 94: Fail-Safe

    Allows the user to define the mA value to be reported when the Fail-safe timer expires. NAMUR NE43- STANDARD Device Type COMPLIANT Range 3.56 mA to 22.6 mA Values Default 22.60 mA 3.58 mA Page 86 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 95: Analog Output Scaling

    To modify Current Output Function via SIMATIC PDM: Select Analog Output • Open the menu Device – Select Analog Output. (See on page 56 for more detail). 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 87...
  • Page 96 Prevents the mA output from rising above this maximum level for a measurement value. This does not restrict the Fail-safe or Manual settings. Range: 3.8 to 20.5 (mA) Values Default: 20.5 (mA) Page 88 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 97: Linearization

    Carries out a volume conversion from a level value. 2.7.1.1. Vessel Shape Defines the vessel shape and allows the LR250 to calculate volume instead of level. If None is selected, no volume conversion is performed. Select the vessel shape matching the monitored vessel or reservoir.
  • Page 98 LINEAR TABLE 1-32 level and Linearization table volume break- (level/volume breakpoints) points Linearization Table must be selected in order for level/volume values [see Table 1-8 (2.7.2.)] to be transferred. Page 90 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 99 Level values are defined in Units (2.2.1.). Volume units are defined by the user but are not explicitly stated in the SITRANS LR250. Range: 0.0 to span Span = High Calibration Pt. (2.3.2.) Low Calibration Pt.
  • Page 100 Example (values are for example purposes only) Level Breakpoint value number Breakpoint Level value Volume Number value (l) 19.5 3000 19.5 8000 2.7.3. Table 9-16 2.7.4. Table 17-24 2.7.5. Table 25-32 Page 92 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 101: Signal Processing

    Default: Value for Low Calibration Pt. + 1 m (3.28 ft) Related Units parameters Use this feature if the measured surface can drop below the Low Cal. Point in normal operation. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 93...
  • Page 102 (at low level conditions), or if the dielectric constant of the liquid to be monitored is less than 3, we recommend setting Position Detect to Hybrid and CLEF Range (2.8.4.4.) to 0.5 m (1.64 ft). Page 94 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 103 CLEF Range Low Calibration Point (process empty level) In applications with low dK materials we recommend setting CLEF Range to 0.5 m (1.64 ft) and Position Detect (2.8.4.2.) to Hybrid. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 95...
  • Page 104 2.8.5.1. Echo Lock Note: Ensure the agitator is always running while SITRANS LR250 is monitoring the vessel, to avoid stationary blade detection. Selects the measurement verification process. Lock Off...
  • Page 105 Displays the average ambient noise (in dB above 1 μV rms) of a noise profile. Noise level is a combination of transient noise and receiving circuitry. After a measurement, the values from the previous noise shot will be displayed. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 97...
  • Page 106 Determine Auto False Echo Suppression Range. Measure the actual distance from the sensor reference point to the material surface using a rope or tape measure. Subtract 0.5 m (20") from this distance, and use the resulting value. Page 98 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 107 Go to Auto False Echo Suppression (2.8.7.1.) and press RIGHT arrow to open Edit Mode Select Learn. The device will automatically revert to On (Use Learned TVT) after a few seconds. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 99...
  • Page 108 Adjusts the TVT (Time Varying Threshold) at a specified range (breakpoint on the TVT). This allows you to reshape the TVT to avoid unwanted echoes. There are 40 breakpoints arranged in 5 groups. (We recommend using SIMATIC PDM to access this feature.) Page 100 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 109 Open the menu View – Process Variables. 2.8.9.1. Level Measurement The value for level. 2.8.9.2. Space Measurement The value for space. 2.8.9.3. Distance Measurement The value for distance. 2.8.9.4. Volume Measurement The value for volume. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 101...

  • Page 110: Diagnostics

    Read only. Displays (in degrees C) the minimum temperature recorded by the internal electronics. The high and low values are maintained over a power cycle. Via SIMATIC PDM navigate to Maintenance and Diagnostics > Electronics Temperature. Page 102 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 111: Service

    After modifying values/units as required, click on Write to accept the change, and Read to view the effect of the change. • Click on Snooze to add a year to the Total Expected Device Life. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 103...
  • Page 112 Units are selectable only via SIMATIC PDM. 4.2.2. Time in Operation Read only. The amount of time the device has been operating. 4.2.3. Remaining Lifetime Read only. Lifetime (Expected) (4.2.1.) less Time in Operation (4.2.2.). Page 104 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 113 4.2.7. Maintenance Status Indicates which level of maintenance reminder is active. In SIMATIC PDM, open the menu View – Device Status, click on the Maintenance tab, and check the Device Lifetime Status window. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 105...

  • Page 114: Remaining Sensor Lifetime

    Read to view the effect of the change. • Click on Snooze to add a year to the Total Expected Sensor Life. • Click on Sensor Replaced to restart the timer and clear any fault messages. Page 106 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 115 Remaining Sensor Lifetime tab, and click on Sensor Replaced to restart the timer and clear any fault messages. • Via the handheld programmer, manually reset Time in Operation (4.3.2.) to zero. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 107...
  • Page 116 4.3.7. Maintenance Status Indicates which level of maintenance reminder is active. In SIMATIC PDM, open the menu View – Device Status, click on the Maintenance tab, and check the Sensor Lifetime Status window. Page 108 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 117: Service Schedule

    After modifying values/units as required, click on Write to accept the change, and Read to view the effect of the change. • Click on Service Performed to restart the timer and clear any fault messages. (see next page for an illustration) 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 109...
  • Page 118 Service Schedule tab, and click on Service Performed to restart the timer and clear any fault messages. • Via the handheld programmer, manually reset Time Since Last Service (4.4.2.) to zero. Page 110 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 119 Set Activation of Reminders (4.4.4.) to the desired option. 4.4.7. Maintenance Status Indicates which level of maintenance reminder is active. Open the menu View – Device Status, click on the Maintenance tab and check the Service Schedule Status window. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 111...

  • Page 120: Calibration Schedule

    After modifying values/units as required, click on Write to accept the change, and Read to view the effect of the change. • Click on Calibration Performed to restart the timer and clear any fault messages. Page 112 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 121 Calibration Interval parameters in SIMATIC PDM. User-configurable recommended time between product calibrations. Units : hours, days, years Range: 0 to 20 years Values Default: 1.0 year Units are selectable only via SIMATIC PDM. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 113...
  • Page 122 Range: 0 to Calibration interval Calibration Interval 4.5. 1 .on page 113 Values Default: 0.164 years a) Modify values as required. b) Set Activation of Reminders (4.5.4.) to the desired option. Page 114 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 123: Manufacture Date

    Press RIGHT arrow to acknowledge the reminder. 4.6. Manufacture Date Read only. The date of manufacture of the SITRANS LR250 (yy mm dd). 4.7. Powered Hours Read only. Displays the number of hours the unit has been powered up since manufacture.

  • Page 124: Lcd Fast Mode

    The LCD Display Normal in Measurement Mode. [See on page 33, area (6) under operation 4.12. Memory Test Allows verification of the RAM, EEPROM, and Flash memory of the SITRANS LR250 IDLE No test in progress. BUSY Test in progress. PASS Memory test successful.

  • Page 125: Communication

    Read only tions. Read Write Changes are permitted. Options Sets the status to Read only, with the potential for Restricted another HART device to change this parameter only, via remote communications. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 117...

  • Page 126: Local Access

    Value when shipped: 1954. Not restored by a reset to Factory Programmer Defaults. Values – – – – Display when Lock is on 7. Language Selects the language to be used on the LCD. English Deutsch Options Français Español Page 118 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 127: Appendix A: Alphabetical Parameter List

    Fail-Safe mA Value (2.5.3.) Fill Rate per Minute (2.4.2.) Firmware Revision (2. 1 .2.) Hardware Revision (2.1.1.) High Calibration Pt. (2.3.2.) Highest value (3.2.2.) Hover Level (2.8.7.3.) Language (7.) LCD Contrast (4. 1 0.) 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 119...
  • Page 128 Response Rate (2.4.1.) Sensor Mode (2.2.2.) Sensor Offset (2.3.3.) Space Measurement (2.8.9.2.) LOE Timer (2.5.2.) Measured Values (2.8.9.) Units (2.2.1.) Vessel Shape (2.7.1.1.) Volume 1 (2.7.2.2.) Volume Measurement (2.8.9.4.) Write Protect (6.2.1.) Page 120 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 129: Appendix B: Troubleshooting

    Try pressing Mode to put the device into PROGRAM mode. If you continue to experience problems, go to our website at: www.siemens.com/LR250, and check the FAQs for SITRANS LR250, or contact your Siemens Milltronics representative. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL...

  • Page 130: Device Status Icons

    • Simulation or substitute value • Communication is good; device is in simulation mode or works with substi- tute values. • Out of operation • Communication is good; device is out of action. Page 122 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 131: General Fault Codes

    S: 3 Device is nearing its lifetime limit according to the value set in Maintenance Required Replacement is recommended. Limit. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 123...
  • Page 132 Calibration interval as defined in Mainte- Perform calibration. nance Demanded Limit has expired. S: 28 Internal device failure caused by a RAM Repair required: contact your local Sie- memory error. mens representative. Page 124 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 133 Calibration Point, Volume breakpoints, and/ bration Point and Low Calibration Point is or Auto False-Echo Suppression, are set to not less than or equal to zero; do a Mas- invalid values. ter Reset. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 125...

  • Page 134: Operation Troubleshooting

    • check Low Calibration Pt. (2.3.1.) • increase Confidence (2.8.6.1.) Display shows • clean the antenna S: 0 LOE material build-up on antenna • re-locate SITRANS LR250 Page 126 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 135 • decrease Fill Rate per Minute (2.4.2.) • relocate instrument to side pipe liquid surface vortexed • increase confidence threshold in Echo Reading erratic Threshold (2.8.4.3.) material filling • re-locate SITRANS LR250 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 127...
  • Page 136 • ensure Material (2.2.3.) selection is LIQ- • vessel near empty and UID LOW DK low dK material • set Position Detect (2.8.4.2.) to Hybrid • set CLEF Range (2.8.4.4.) to 0.5 m Page 128 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 137: Appendix C: Maintenance

    If the antenna requires replacement due to damage or failure, it may be replaced without the need for re-calibration. • 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, plesase ensure the correct antenna version is used, otherwise a re-calibration will need to be performed by Siemens authorized personnel.

  • Page 138: Appendix D: Technical Reference

    81 for a complete list of parameters. Principles of Operation SITRANS LR250 is a 2-wire 25 GHz pulse radar level transmitter for continuous monitoring of liquids and slurries . Radar level measurement uses the time of flight principle to determine distance to a material surface.

  • Page 139: Echo Selection

    (see Propagation Factor (2.8.3.) for values). There are three options: • Center • Hybrid • CLEF (Constrained Leading Edge Fit) 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 131...
  • Page 140 Example: CLEF enabled Vessel height: 1.5 m; CLEF range set to 0.5 m default TVT vessel bottom material echo echo selected echo marker Page 132 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 141 In radar applications, two measurement verification options are used: Lock Off SITRANS LR250 responds immediately to a new selected echo (within the restrictions set by the Maximum Fill / Empty Rate), but measurement reliability is affected. Material Agitator A new measurement outside the Echo Lock Window must meet the sampling criteria before the window will move to include it.
  • Page 142 Example before Auto False Echo Suppression sensor reference point High Cal. Pt. obstruction at 1.3 m default material false material level at echo echo 3.2 m Page 134 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 143: Measurement Range

    Measurement Range Near Range (2.8.1.) Near Range programs SITRANS LR250 to ignore the zone in front of the antenna. The default blanking distance is 50 mm (1.97") from the end of the antenna. Near Range allows you to increase the blanking value from its factory default. But Auto False Echo Suppression (2.8.7.

  • Page 144: Analog Output

    4 mA equals 0% and 20 mA equals 100%. When SITRANS LR250 is put into PROGRAM mode (for example, by navigating through the menu) it stops updating the output of the device (local user interface and mA Output).

  • Page 145: Sensor Mode

    When a volume application type is chosen, Sensor Mode remains as Level and the mA Output is automatically converted to Volume. To view the mA reading in the secondary region of the LCD, press on the handheld programmer. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 137...

  • Page 146: Loss Of Echo (Loe)

    Upon receiving a reliable echo, the loss of echo condition is aborted, the Service Required icon and error message are cleared, and the reading and mA output return to the current material level. Page 138 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 147: Maximum Process Temperature Chart

    • The chart below is for guidance only. • The chart does not represent every possible process connection arrangement. For example, it will NOT apply if you are mounting SITRANS LR250 directly on a metallic vessel surface. • The chart does not take into consideration heating from direct sunshine exposure.

  • Page 148: Process Pressure/Temperature Derating Curves

    . In the event the instrument package is replaced, the process connection tag shall be transferred to the replacement unit. • SITRANS LR250 units are hydrostatically tested, meeting or exceeding the requirements of the ASME Boiler and Pressure Vessel Code and the European Pressure Equipment Directive.

  • Page 149: Horn Antenna Or Wave Guide

    1.5", 2" and 3" Threaded Versions OPERATING AREA process temperature (°C) 1.5", 2" and 3" NPT / BSPT / G 2" Threaded PVDF Antenna Versions OPERATING AREA process temperature (°C) 2" NPT / BSPT / G 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 141...

  • Page 150: 80A And 100A Flanged Versions: Jis 10K

    (°C) JIS 10K DN50, DN80, DN100, and DN150 Flanged Versions: PN16 OPERATING AREA process temperature (°C) PN16 DN50, DN80, DN100, and DN150 Flanged Versions: PN40 OPERATING AREA process temperature (°C) PN40 Page 142 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 151: 2", 3", And 4" Flanged Versions: 150 Lb

    2", 3", and 4" Flanged Versions: 150 lb OPERATING AREA process temperature (°C) 150 lb 2", 3", and 4" Flanged Versions: 300 lb OPERATING AREA process temperature (°C) 300 lb 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 143...

  • Page 152: Loop Power

    LR250 loop current IL Allowable operating area of SITRANS LR250 Note: The curves below apply to a standalone device, configured via the Siemens handheld programmer. Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking/Energy Limited, Non-incendive) Loop Voltage versus Loop Resistance...

  • Page 153: Startup Behavior

    Note: When using HART communications, the minimum voltage with 220 Ohms (RL) is 20.94 VDC. Startup Behavior • The device draws less than 3.6 mA at startup. • Time to first measurement is less than 50 seconds. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 145...

  • Page 154: Appendix E: Application Examples

    High Calibration Pt.= 0.5 m (1.64 ft) from sensor reference point Max.fill/empty rate = 0.2 m/min (0.65 ft/min) In the event of a loss of echo: SITRANS LR250 is to go into Fail-safe High after 2 Low Cal 0% Level minutes.

  • Page 155: Horizontal Vessel With Volume Measurement

    Select vessel shape, Parabolic Ends, and enter values for A and L, to obtain a volume reading instead of level. In the event of a loss of echo: SITRANS LR250 is to go into Fail-safe High after 2 minutes. sensor reference 0.5 m...

  • Page 156: Application With Stillpipe

    5 m (16.5 ft) The recommended values for the propagation factor and for CLEF range are dependent Propagation Factor/Stillpipe Diameter on the stillpipe diameter. See on page 149 for val- ues. Page 148 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 157 Nominal Pipe Size 0.9844 0.9900 0.9961 0.9975 Propagation Factor CLEF Range (2.8.4.4.) 700 mm 700 mm 1000 mm 1000 mm settings Since pipe dimensions may vary slightly, the propagation factor may also vary. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 149...

  • Page 158: Appendix F: Hart Communications

    SITRANS LR250. HART Handheld 375/475 If the SITRANS LR250 HART device revision is higher than Rev. 2, the FC375 will report that the Device Description is not installed and will ask whether you wish to proceed in forward compatibility mode. It is recommended to choose YES in order to use Rev. 3 with the FC375.

  • Page 159: Hart Communicator 375 Menu Structure

    HART Communicator 375 Menu Structure Note: HART Communicator 375 is supported by SITRANS LR250 HART. LEVEL METER IDENTIFICATION 1. TAG 2. DESCRIPTION 3. MESSAGE 4. INSTALLATION DATE 5. DEVICE ORDER NUMBER SETUP 1. DEVICE 1. FIRMWARE REVISION 2. LOADER REVISION 3.
  • Page 160 1. TOTAL EXPECTED SENSOR LIFE 2. TOTAL SENSOR OPERATING TIME 3. REMAINING SENSOR LIFETIME 4. MAINTENANCE REQUIRED LIMIT 5. MAINTENANCE DEMANDED LIMIT 6. MAINTENANCE ALERT ACTIVATION 7. SENSOR LIFETIME MAINTENANCE ACKNOWLEDGE Page 152 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 161: Hart Version

    1. WRITE PROTECT 2. PIN TO UNLOCK LANGUAGE 1. LANGUAGE HART Version SITRANS LR250 conforms to HART rev. 5. Burst Mode SITRANS LR250 does not support burst mode. HART Multidrop Mode We do not recommend the use of HART Multidrop Mode.

  • Page 162: Glossary

    (decibel): a unit used to measure the amplitude of signals. Page 154 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 163 1 GHz to 300 GHz. Many conductive liquids/electrolytes exhibit dielectric properties; the relative dielec- tric constant of water is 80. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 155...
  • Page 164 Light speed is a constant 299, 792, 458 meters per second. stillpipe: a pipe that is mounted inside a vessel parallel to the vessel wall, and is open to the vessel at the bottom. Page 156 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 165 TVT (Time Varying Threshold): a time-varying curve that determines the threshold level above which echoes are determined to be valid. waveguide antenna: a hollow, metallic tube that transmits a microwave signal to the product target. 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 157...

  • Page 166: Appendix G: Firmware Revision History

    • antenna parameter removed, default near range set at factory Electronic Device Description See Sensor Mode (2.2.2.) on page 82 for an illustration of Distance. Page 158 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 167: Index

    LUI 41 setup 95 view via PDM 59 communication Echo Profile Utilities 50 load 9 echo selection max. line length 9 Algorithm 131 conduits CLEF (Constrained Leading Edge Fit) requirements 27 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 159...
  • Page 168 103 details 150 factory defaults via AMS 63 HART version 9 measurement range hazardous area installations blanking via Near Range 135 wiring requirements 28 extension via Far Range 135 Measurement Response Page 160 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 169 11 adjust parameters via PDM 49 performance 8 via the handheld programmer 35 power 8 propagation factor pressure 11 values 94 process connections 9 process temperature 11 Quick Start Wizard 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 161...
  • Page 170 118 uploads/downloads accelerated 90 vessel shape selection 89 wear view via PDM 60 wiring cables 27 connecting HART 28 hazardous areas 28 write protect local access 118 Page 162 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...

  • Page 171: Lcd Menu Structure

    LCD menu structure SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 163 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 172 4.2.3 REMAIN. LIFETIM.. 2.7 LINEARIZATION 4.2.4 REMINDER ACTIV. 2.7. 1 VOLUME 4.2.5 REMIND. 1 (REQ) 2.7.1.1 VESSEL SHAPE 4.2.6 REMIND. 2 (DEM) 2.7.1.2 MAX. VOLUME Page 164 SITRANS LR250 (HART) – INSTRUCTION MANUAL SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE06...
  • Page 173 4.10 LCD CONTRAST 4.11 SECONDARY VALUE 4.12 MEM. TEST COMMUNICATION 5.1 DEVICE ADDRESS SECURITY 6.1 REMOTE ACCESS 6.1.1 ACCESS CONTROL 6.2 LOCAL ACCESS 6.2.1 WRITE PROTECT 6.2.2 PIN TO UNLOCK LANGUAGE 7ML19985JE06 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 165...
  • Page 174 Notes...
  • Page 175 S I E ME N S ® S I T R A N S R A D A R L E V E L T R A N S MI T T E R MO D E L S : L R 2 5 0 E R N I E G R A V E S S E R V I C E A N D S U P P O R T E E r n i e G r a v e s i s c o mmi t t e d t o a s s u r i n g a l l o f o u r c u s t o me r s r e c e i v e t h e i d e a l f l o w s o l u t i o n f o r t h e i r a p p l i c a t i o n , a l o n g w i t h o u t s t a n d i n g s e r v i c e a n d s u p p o r t t o b a c k i t u p .

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