Instruction Manual January 2009 sitrans LR250 (HART)
Safety Guidelines: Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected equipment. These warning notices are accompanied by a clarification of the level of caution to be observed. Qualified Personnel: This device/system may only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install and operate this equipment in accordance with established safety practices and standards.
Table of Contents SITRANS LR250 Overview ................................................................................................5 Specifications ....................................................................................................................7 Power............................................................................................................................................. 7 Performance...............................................................................
Table of Contents mmmmm Auto False Echo Suppression ..........................................................................................................38 Requesting an Echo Profile ..............................................................................................................38 Level application example ................................................................................................................39 Operating via SIMATIC PDM .........................................
Quick Start .................................................................................................................................. 78 Setup ............................................................................................................................................ 79 Device ................................................................................................................................79 Sensor .......................................................................
Table of Contents mmmmm Appendix D: Technical Reference .............................................................................126 Principles of Operation ....................................................................................................................126 Echo Processing ...............................................................................................................................126 Process Intelligence .............................................................
Safety Notes Special attention must be paid to warnings and notes highlighted from the rest of the text by grey boxes.1) WARNING: relates to a caution symbol on the product, and means that failure to observe the necessary precautions can result in death, serious injury, and/or considerable material damage. WARNING1): means that failure to observe the necessary precautions can result in death, serious injury, and/or considerable material damage.
CE Electromagnetic Compatibility (EMC) Conformity SITRANS LR250 mmmmm This equipment has been tested and found to comply with the following EMC Standards: EMC Standard Title CISPR 11:2004/EN 55011:1998+A1:1999&A2:2002, CLASS B Limits and methods of measurements of radio disturbance characteristics of industrial, scientific, and medical (ISM) radio-frequency equipment.
Application Examples The application examples used in this manual illustrate typical installations using SITRANS LR250 (see Appendix E: Application Examples on page 142). Because there is often a range of ways to approach an application, other configurations may also apply. In all examples, substitute your own application details. If the examples do not apply to your application, check the applicable parameter reference for the available options. Technical Support Support is available 24 hours a day.
Short form Long Form (continued) HART Highway Addressable Remote Transducer Ii Input current mA Io Output current mA IS Intrinsically Safe Li Internal inductance mH SITRANS LR250 mmmmm µF milliHenry microFarad Description Units safety approval mH 10 -3 H 10 -6 F -6 s µs microsecond 10 PED Pressure Equipment Directive safety approval pF pico Farads 10-12 ppm parts per million PV Primary Variable measured value SV Secondary Variable equivalent value TB Transducer
SITRANS LR250 Overview 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). It is ideal for small vessels and low dielectric media. The instrument consists of an electronic component coupled to a horn antenna and either a threaded or flange type process connection.
Approvals and Certificates Note: For further details see Approvals on page 10. 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 Type SITRANS LR250 mmmmm Nonhazardous LR250 Version General Purpose Intrinsically Safe (barrier required) Hazardous Approval Rating Valid for: Wiring CSAUS/C, FM, CE N.
Specifications Note: Siemens Milltronics makes every attempt to ensure the accuracy of these specifications but reserves the right to change them at any time. Power General Purpose Non-incendive (FM/CSA US/Canada only) Intrinsically Safe Nominal 24 V DC at 550 Ohm Flameproof Increased Safety Explosion-proof (FM/CSA US/Canada only) Nominal 24 V DC at 250 Ohm • Maximum 30 V DC • 4 to 20 mA • Max.
Dielectric constant of material measured • dK > 1.6 (horn and application dependent1)) Memory: • non-volatile EEPROM • no battery required. Interface Analog output • signal range • fail signal Communication: HART • Load • Max. Line Length • Protocol Configuration • remote • local Specifications mmmmm Display (local)2) 4 to 20 mA (± 0.02 mA accuracy) upper limit 20 to 23 mA adjustable 3.
Antenna: • horn standard 1.5" (40 mm), 2" (50 mm), 3" (80 mm), and 4" (100 mm) horn, optional 100 mm (4") horn extension 316L stainless steel with PTFE emitter optional Alloy N06022/2.4602 (C-22) with PTFE emitter • materials Enclosure • construction • conduit entry • ingress protection aluminum, polyester powder-coated 2 x M20x1.5, or 2 x ½" NPT Type 4X/NEMA 4X, Type 6/NEMA 6, IP 67, IP68 (see note below) Weight (excluding extensions) • 1.5" threaded connection with 1.
Process • temperature1) at process connection - with FKM O-ring - with FFKM O-ring • pressure (vessel)1 −40 to +200 °C (−40 to +392 °F) −20 to +200 °C (−4 to +392 °F) Refer to Process Pressure/Temperature derating curves on page 136. Approvals • General CSAUS/C, FM, CE • Radio Europe (R&TTE), FCC, Industry Canada • Hazardous Intrinsically Safe2) (Europe) Specifications mmmmm Note: The device nameplate lists the approvals that apply to your device.
• Hazardous (continued) Flameproof (Europe)1) Increased Safety (Europe)2) • Marine ATEX II 1/2 G, Ex dmia IIC T4 ATEX II 1D, 1/2D, 2D, Ex tD A20 IP67 Txx oC IECEx SIR 08.0107, Ex dmia IIC T4 tD A20 IP67 Txx oC ATEX II 1/2 G, Ex emia IIC T4 ATEX II 1D, 1/2D, 2D, Ex tD A20 IP67 Txx oC IECEx SIR 08.0107, Ex emia IIC T4 tD A20 IP67 Txx oC Explosion proof (US/Canada)3) FM/CSA: (barrier not required) Class I, Div. 1, Groups A, B, C, D Class II, Div.
Dimensions Threaded Horn Antenna with extension Notes: • Process temperature and pressure capabilities are dependent upon information on the process device tag. Reference drawing listed on the Tag is available on the product page of our website at www.siemens.com/LR250, under More Info/ Installation drawings/Level Measurement/Installation Drawings/LR250. Additional information on process connections is available on the Installation Drawings page under Process Connection Diagrams.
Threaded Horn dimensions Nominal Horn Size Horn O.D. a) Horn Height to sensor reference pointa) Measurement Beam Angleb) Range 40 mm (1.5") 39.8 mm (1.57”) A 135 mm (5.3") 19 degrees 50 mm (2”) 47.8 mm (1.88”) B 166 mm (6.55”) 15 degrees 80 mm (3”) 74.8 mm (2.94”) C 199 mm (7.85”) 10 degrees 100 mm (4”) 94.8 mm (3.73”) D 254 mm (10”) 8 degrees 10 m (32.8 ft) 20 m (65.
Flanged Horn with extension Notes: • Process temperature and pressure capabilities are dependent upon information on the process device tag. Reference drawing listed on the Tag is available on the product page of our website at www.siemens.com/LR250, under More Info/ Installation drawings/Level Measurement/Installation Drawings/LR250. Additional information on process connections is available on the Installation Drawings page under Process Connection Diagrams.
Flanged Horn dimensions Nominal Horn Size a) Horn O.D. Height to sensor reference pointa) Beam Angleb) 50 mm (2”) 47.8 mm (1.88”) 135.5 mm (5.33”) 15 degrees 80 mm (3”) 74.8 mm (2.94”) 168.5 mm (6.63”) 10 degrees 100 mm (4”) 94.8 mm (3.73”) 223.5 mm (8.8”) 8 degrees Measurement Range 20 m (65.6 ft) Height from bottom of horn to sensor reference point as shown: see Flanged Horn dimensions on page 15.
Raised-Face Flange per EN 1092-1 bolt hole angle of adjacent bolt holes bolt hole circle flange O.D. Specifications mmmmm waveguide mounting hole Facing height = 3 mm bolt hole circle dia. thickness Facing dia.
Raised-Face Flange markings Blind Flange Markings (Optional Manufacturer’s Logo [optional]; Flange Standard; Nominal Size; Material; Heat Code) Manufacturer’s logo; EN 1092-1 05 ’B1’; ’DN50’ ’PN16’ ’1.4404 or 1.4435’ A1B2C3 a) Welded Assembly Identificationa) Machining Identification Serial no. Logo mmddyyxxx Flange Flange Heat series series Code no. Facing XXXXX RF XXXXX A1B2C3 When flange material is Alloy N06022/2.4602, additional material and heat code identification is provided.
Flat-Face Flange Dimensions Specifications mmmmm Flange sizea) 2” a) Flange Class Flange O.D. ASME 150 lb Bolt Hole Circle Ø 6.0” Bolt Hole No. of Thickness Ø Bolt Holes 4.75” 0.75” 4 0.88" 3” ASME 150 lb 7.5” 6.0” 0.75” 4 0.96" 4” ASME 150 lb 9.0” 7.50” 0.75” 8 1.25" 2” ASME 300 lb 6.50” 5.00” 0.75” 8 1.12" 3” ASME 300 lb 8.25” 6.62” 0.88” 8 1.38" 4” ASME 300 lb 10.00” 7.88” 0.88” 8 1.50" DN 50 EN PN 16 165 mm 125 mm 18 mm 4 24.
Notes SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 19 mmmmm Specifications 7ML19985JE03
Installation • • • • • • • • WARNINGS: Installation shall only be performed by qualified personnel and in accordance with local governing regulations. SITRANS LR250 is to be used only in the manner outlined in this manual, otherwise protection provided by the device may be impaired. Handle the device using the enclosure not the device tag, to avoid damage. Never attempt to loosen, remove, or disassemble process connection or instrument housing while vessel contents are under pressure.
Mounting location Notes: • Correct location is key to a successful application. • Avoid reflective interference from vessel walls and obstructions by following the guidelines below Nozzle design • • The end of the horn must protrude a minimum of 10 mm (0.4”) to avoid false echoes being reflected from the nozzle. Min. clearance: 10 mm (0.4") An antenna extension: (100 mm/ 3.93") is available. Nozzle location Notes: • Beam width depends on horn size: see below.
Nozzle location (continued) • • • Provide easy access for viewing the display and programming via the hand programmer. Provide an environment suitable to the housing rating and materials of construction. Provide a sunshield if the instrument will be mounted in direct sunlight.
• Joints (if unavoidable) must be machined to ± 0.25 mm (± 0.010”) and must have a welded connecting sleeve on the outside.
Wiring Power WARNINGS: 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. All field wiring must have insulation suitable for rated voltages. Connecting SITRANS LR250 • • • WARNINGS: Check the nameplate on your instrument, to verify the approval rating. Use appropriate conduit seals to maintain IP or NEMA rating. See Wiring setups for hazardous area installations on page 25.
Connecting HART 1)2) Typical PLC/mA configuration with HART active PLC power supply (1) R= 250 Ω (2) HART modem SITRANS LR250 HART communicator Wiring setups for hazardous area installations There are five wiring options for hazardous area installations: • Intrinsically Safe wiring on page 26 • Non-incendive wiring (US/Canada only) on page 28 • Flameproof wiring on page 28 • Increased safety wiring on page 29 • Explosion-proof wiring (US/Canada only) on page 29 In all cases, check the nameplate on your
1. Intrinsically Safe wiring SITRANS LR 250 7ML1234-56789-0ABC-D Serial No: GYZ / S1034567 Encl.: NEMA / TYPE 4X, 6, IP67, IP68 Amb.Temp.: – 40 °C to 80 °C Power Rating: 24V Nom., 30 V Max., 4 - 20mA Siemens Milltronics Process Instruments Inc., Peterborough Made in Canada Ii = 120 mA Ui = 30V Li = 0.1mH Pi = 0.8W Ci = 15nF HART SIRA II 1 D IP68 Txx II 1 G EEx ia IIC T4 03ATEX2142X IECEx SIR 05.0031X Ex ia IIC T4 WARNING: Possible Static Hazard, Do Not Rub Or Clean On Site.
Passive Shunt Diode Barriers Note: A well regulated supply voltage is required. Manufacturer Part Number MTL 787SP+ (Dual Channel) MTL 7787P+ (Dual Channel) Stahl 9001/01-280-100-10 (Single Channel) Stahl 9002/01-280-110-10 (Dual Channel) How to select a passive barrier for SITRANS LR250 To make sure that the barrier safety description is suitable for the LR250 Intrinsically Safe (IS) input parameters, carry out the following calculations: Re-e Rloop = = Vbarrier = 1) 2) 3) 4) 5) max.
2. Non-incendive wiring (US/Canada only) SITRANS LR 250 7ML1234-56789-0ABC-D Serial No: GYZ / S1034567 Encl.: NEMA / TYPE 4X, 6, IP67, IP68 Amb.Temp.: – 40 °C to 80 °C Power Rating: 24V Nom., 30 V CANADA: 267P - LR 250 FCC ID: NJA - LR 250 26 Ghz HART Max., 4 - 20mA Siemens Milltronics Process Instruments Inc., Peterborough Made in Canada This device complies with Part 15 of the FCC Rules.
4. Increased safety wiring NAMEPLATE TO BE UPDATED The ATEX certificate can be downloaded from the product page of our website at: www.siemens.com/LR250. See also ATEX Certificate SIRA 08ATEX1301X on page 153 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 certificate number IECEx SIR 08.0107X.
Instructions specific to hazardous area installations (Reference European ATEX Directive 94/9/EC, Annex II, 1/0/6) The following instructions apply to equipment covered by certificate number SIRA 06ATEX2358X and SIRA 08ATEX1301X. Wiring For use and assembly, refer to the main instructions. The equipment is certified for use as Category 1GD equipment. The equipment may be used with flammable gases and vapors with apparatus group IIC, IIB and IIA and temperature classes T1, T2, T3 and T4.
Operating via the handheld programmer For more complex setups see Appendix E: Application Examples on page 142, and for the complete range of parameters see Parameter Reference on page 78. Activating SITRANS LR250 Power up the instrument. SITRANS LR250 automatically starts up in Measurement mode. A transition screen showing the current firmware revision and an incrementing line of stars is displayed while the first measurement is being processed. to toggle between Measurement and Program Mode.
Quick Start: local mmmmm PROGRAM mode display Navigation view • • • • current item number current menu 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. menu bar item band current item 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. A deeper band indicates fewer items.
Key Function Result (cont’d) New value is displayed in LCD secondary region. Mode opens PROGRAM mode. Opens the menu level last displayed in this power cycle, unless power has been cycled since exiting PROGRAM mode or more than 10 minutes have elapsed since PROGRAM mode was used. Then top level menu will be displayed. RIGHT arrow opens PROGRAM mode. Opens the top level menu. UP or DOWN arrow LCD displays measured value in either linear toggles between linear units and units or percent. percent.
Enter PROGRAM mode • Quick Start: local mmmmm 1. Point the programmer at the display from a handheld programmer maximum distance of 300 mm (1 ft). • RIGHT arrow display activates PROGRAM mode and opens menu level 1. Max. 300 mm (1 ft) • Mode opens the menu level last displayed in PROGRAM mode within the last 10 minutes, or menu level 1 if power has been cycled since then. 2.
c) Press RIGHT arrow again to open Edit Scroll to a new selection. d) Press RIGHT arrow to accept it The LCD returns to parameter view and displays the new selection. Changing a numeric value parameter name a) Navigate to the desired parameter. b) Press RIGHT arrow parameter number to open parameter view. The current value is displayed. c) Press RIGHT arrow again to open Edit mode. The current value is highlighted. d) Key in a new value. e) Press RIGHT arrow to accept it.
Quick Start: local mmmmm Key Name Function (cont’d) Clear Numeric editing Erases the display. Decimal point Numeric editing Enters a decimal point. Plus or minus sign Numeric editing Changes the sign of the entered value. Numeral Numeric editing Enters the corresponding character. to Quick Start Wizard via the handheld programmer Notes: • The Quick Start wizard settings are inter-related and changes apply only after you select YES in Apply? (Apply changes) (1.8.).
LIQUID a) LIQUID LOW DKa) (low dielectric liquid – CLEF algorithm enabled) dK < 3.0 1.3. Response Rate Sets the reaction speed of the device to measurement changes in the target range. Response Rate (1.3.) Options Fill Rate (2.4.2.)/Empty rate (2.4.3.) SLOW 0.1 m/min (0.32 ft/min) MED 1.0 m/min (3.28 ft/min) FAST 10.0 m/min (32.8 ft/min) Use a setting just faster than the maximum filling or emptying rate (whichever is greater). 1.4. Units Sensor measurement units. M, CM, MM, FT, IN Options 1.
Quick Start: local mmmmm 1.6. Low Calibration Point Distance from Sensor Reference to Low Calibration Point: usually process empty level. (See Operation Mode (1.5.) for an illustration.) Range: 0.00 to 20.00 m Values 1.7. High Calibration Point Distance from Sensor Reference to High Calibration Point: usually process full level. (See Operation Mode (1.5.) for an illustration.) Range: 0.00 to 20.00 m Values 1.8.
Level application example SITRANS LR250 1.0 m High Cal. Point sensor reference point 15.5 m Level Low Cal. Point Quick Start Parameter Setting Description Material (1.2.) LIQUID Response Rate (1.3.) SLOW Units (1.4.) m Operation Mode (1.5.) LEVEL Material level referenced from Low Cal. Point. Low Calibration Point (1.6.) 15.5 Process empty level. High Calibration Point (1.7.) 1.0 Process full level. Apply? (Apply changes) (1.8.) YES Save new settings.
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.) Functions in SIMATIC PDM SIMATIC PDM mmmmm Notes: • For a complete list of parameters see Parameter Reference on page 78.
Features of SIMATIC PDM Rev. 5.2, SP1 SIMATIC PDM Rev. 5.2 SP1 is supported only for basic configuration and troubleshooting. For advanced features such as the Quick Start wizard, Rev. 6.0 SP3 HF2 or higher is required. 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.
Quick Start Notes: • The Quick Start wizard settings are inter-related and changes apply only after you click on FINISH AND DOWNLOAD at the end of step 5 to save settings offline and transfer them to the device. • Do not use the Quick Start Wizard to modify individual parameters. For quick access to echo profile parameters see Echo Setup on page 54, or see Parameter Reference on page 78 for a complete list. • Click on BACK to return and revise settings or CANCEL to exit the Quick Start.
Step 2 – Application Select the application type (level or volume) and the material1), then click on NEXT. The vessel shapes shown are predefined. To describe a more complex shape see Using Linearization via the Quick Start wizard on page 45. For a vessel with obstructions, see Auto False Echo Suppression on page 52 Select the vessel shape, and click on NEXT. 1) See Application with Stillpipe on page 144 for a Low Dielectric Liquid application.
Step 4 – Range SIMATIC PDM mmmmm Set the parameters, and click on NEXT. Step 5 – Summary 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.
Linearization You can use the linearization feature to define a more complex vessel shape and enter up to 32 level breakpoints where the corresponding volume is known. The values corresponding to 100% and 0% levels must be entered. The breakpoints can be ordered from top to bottom, or the reverse. Example (values for example purposes only) Breakpoint number 4 Level value 19.5 1 0 1 0 0 2 5 500 3 9 3000 4 19.5 8000 0.
SIMATIC PDM mmmmm 4) In Step 4 – Ranges Linearization a) Enter parameter values. b) Click on Linearization. c) In the Linearization window click on the appropriate Breakpoint tab to open the dialog window. d) Enter the desired level and associated volume values1), and click on OK. Breakpoints 1 - 8 Note: The Reset button resets values to the values in the offline table. e) In the Step 4 window, click on NEXT.
5) In Step 5 – Summary, check parameter values. 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. Configuring a stillpipe application • • • • Launch the Quick Start wizard and follow steps 1 to 2. In step 2, select Application Type – Level in a vessel with stillpipe, Material – Liquid Low dK, and set the stillpipe diameter as desired.
Changing parameter settings using SIMATIC PDM Notes: • For a complete list of parameters, see Parameter Reference on page 78. • Clicking on Cancel during an upload from device to SIMATIC PDM will result in some parameters being updated. Many parameters are accessed via the 4-level menu in PDM. See Parameters accessed via pull-down menus below for the others. 1) SIMATIC PDM mmmmm 2) 3) Launch SIMATIC PDM, connect to SITRANS LR250, and upload data from the device.
Pull-down menus Device menus page Communication path View menus Process Variables Device Status Download to device Upload to PC/PG Update Diagnostic Status page 57 58 Toolbar Status bar Echo Profile Utilities Maintenance Wear 49 54 56 Select Analog Output 55 Self Test Loop Test 55 56 Configuration Flag Reset Master Reset 56 56 HART Communication 56 Update Echo Profile Utilities Open the menu Device – Echo Profile Utilities and click on the appropriate tab for easy access to: Echo profile o
Echo profile Notes: • Double click on each axis to see the Xscale and Data Scale values. Right-click or Left-click on the axis and drag to reposition the scale. • After saving a profile click on OK, not the x button, to close the Echo Profile Utilities window, otherwise the profile will not be saved. SIMATIC PDM mmmmm • • • • In the Echo Profile Utilities window click on the tab Echo Profile. Click on the Measure button to update the profile.
TVT Shaper Note: Double click on each axis to see the Xscale and Data Scale values. Right-click or Left-click on the axis and drag to reposition the scale. This feature allows you to manually adjust the TVT to avoid false echoes caused by obstructions. (For an explanation see Auto False Echo Suppression (2.8.7.1.) on page 130.
SIMATIC PDM mmmmm Auto False Echo Suppression Notes: • Make sure material level is below all known obstructions at the moment Auto False Echo Suppression is used to learn the echo profile. We recommend an empty or almost empty vessel. • Note the distance to material level when the environment is learned, and set Auto False Echo Suppression Range to a shorter distance to avoid the material echo being screened out.
3) 4) 5) 6) 7) Open the menu Device – Echo Profile Utilities and click on the tab Auto False Echo Suppression. Enter the value for Auto False Echo Suppression Range and select On. Click on Learn. The message appears: ’This will learn a new echo profile. Once done it cannot be undone’. Click on OK. Once Auto TVT is complete click on Transfer to Device. To exit click on OK. Auto TVT is enabled and the learned TVT will be used.
Echo Setup Provides quick access to echo profile parameters: SIMATIC PDM mmmmm Algorithm Position Detect Echo Threshold Damping Filter CLEF Range Response Rate Fill Rate/min. Empty Rate/min. Open the menu Device – Echo Profile Utilities and click on Echo Setup.
2) 3) 4) 5) Modify desired values, and click on Write. Click on Read, to see the effects of your modification. If desired, set reminders for either or both of Reminder 1 (Required)/Reminder 2 (Demanded). Click on Snooze to add a year to the Total Expected Device Life. To set Service/Calibration schedules: 1) 2) 3) 4) Allows you to set the mA Output to report Level, Distance. See Current Output Function on page 84 for an illustration.
Loop Test Note: The simulated AO (Analog Output) value influences output to the control system. Allows you to input a simulated value (4 mA, 20 mA, or a user-defined value) in order to test the functioning of the mA connections during commissioning or maintenance of the device. (The range is 3.56 mA to 22.6 mA: see mA Output Value (2.6.6.) on page 86.) SIMATIC PDM mmmmm To simulate a user-defined mA value: 1) Open the menu Device – Loop Test. 2) Select Other, enter the new value, and click on OK.
Process Variables To compare outputs in real time open the menu View – Process Variables and click on Overview to see reading (level, space, distance, volume); analog output; device status; and current electronics temperature. To see highest and lowest electronics temperatures, navigate to Level Meter > Maintenance and Diagnostics > Electronics Temperature. Open the menu View – Process Variables and click on Trend. space distance 4 trend lines can be monitored: (distinguished by color in SIMATIC PDM).
Device Status SIMATIC PDM mmmmm Open the menu View – Device Status to view Diagnostics, Device Status, Hardware/ Firmware (HW/FW) Status, and Maintenance status. update diagnostics In the Diagnostics window, click on Update diagnostics to update diagnostic information and refresh linked icons. Update Open the menu View – Update to refresh the screen. Security A password option protects security and communication control parameters from modification by a maintenance user.
SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 59 mmmmm SIMATIC PDM 7ML19985JE03
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 devices with AMS Device Manager are available on our website at: www.siemens.com/processautomation.
Device Description (DD) SITRANS LR250 requires the DD for AMS Device Manager version 9.0. You can locate the DD 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 AMS Device Manager. If you need to install a new DD see Configuring a new device below.
Master Reset • • Navigate to Configure/Setup > Operation In the General field click on Master Reset and accept the option Factory Defaults. Pull-down menu access Action menu items A pull-down menu under Actions gives alternative access to several features. Scan Device • • Open the menu Actions – Scan Device. Scan Device uploads parameters from the device (synchronizes parameters).
Quick Start Wizard via AMS Device Manager Notes: • The layout of the dialog boxes shown may vary according to the resolution setting for your computer monitor • At each step, you can accept the default values without modification and click on the next step to proceed. • After modifying parameters click on Apply inside the Quick Start window to write the new values to the device. • Click on OK only if you wish to update all parameters to the device and close AMS.
Step 3 – Vessel Shape 1) 2) 3) Click on Step 3. Select a predefined vessel shape. (To describe a more complex shape see Linearization below.) Click on Apply. Step 4 – Range 1) 2) 3) 4) 5) 6) Click on Step 4. Change units if desired (in meters by default). Set High and Low Calibration points. To convert the reading from level to volume enter a value for Maximum Volume. If a vessel shape with parabolic ends has been selected, set dimensions A and L. Click on Apply.
6) 7) 8) Click on the Breakpoints tab and enter values for level and volume for up to 32 breakpoints. Navigate to Configure/Setup > Setup > Linearization and click on Characteristic to preview the characteristic curve of the vessel breakpoints. In Step 5 – Summary check parameter values. Click on the appropriate step menu to return and revise values, or click on a different menu to exit Quick Start.
Setup Note: For more detailed explanations of the parameters listed below see the pages referenced. AMS Device Manger mmmmm Sensor Navigate to Configure/Setup > Setup and click on Sensor for access to: General [see Sensor (2.2.) on page 79] • • • • • Units Operating Mode Material Damping Filter Antenna (read only) Calibration [see Calibration (2.3.) on page 80] • • • Low Calibration Point High Calibration Point Sensor Offset Rate [see Rate (2.4.
Analog Output Scaling Navigate to Configure/Setup > Setup and click on Analog Output Scaling for access to: mA Output Function Start of scale Full Scale Control Range (lower limit) Control Range (upper limit) Signal Processing 7ML19985JE03 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 67 mmmmm • • • • • AMS Device Manger Analog Output Scaling [see Analog Output Scaling (2.6.
Signal Processing (continued) General Navigate to Configure/Setup > Setup > Signal Processing and click on General for access to: Range [see Signal Processing (2.8.) on page 90] • • • Near Range Far Range Propagation Factor Echo Select [see Echo select (2.8.4.) on page 91] • • • • Algorithm Position Detect Echo Threshold CLEF Range Sampling [see Sampling (2.8.5.
Navigate to Configure/Setup > Setup > Signal Processing and click on TVT. Click on one of the two tabs to access the parameters listed: TVT Setup [see TVT setup (2.8.7.) on page 94] • • • • Auto False Echo Suppression Range Auto False Echo Suppression Hover Level Shaper Mode TVT Shaper • Shaper breakpoints 1 to 40. (Turn TVT Setup/Shaper Mode on to activate.) Manual TVT Curve Displays the effects of the TVT shaper modifications.
Calibration Schedule [see Calibration Schedule (4.5.
Device Diagnostics Click on the Device Diagnostics bar at the bottom of the navigation window, for access to: Device Status Hardware/Firmware Status To compare outputs in real time click on Process Variables at the bottom of the navigation window.
Password Protection An AMS Device Manager administrator can configure the user to require a password. The use of passwords is recommended. A password should be assigned to the ’admin’ username immediately after installing AMS Device Manager. Each user is given an AMS Device Manager username and password and required to enter them when they start AMS Device Manager. Access to functions depends on the level of permissions granted.
AMS Menu Structure Configure/Setup Identification Identification Tag Description Message Date Device Manufacturer Product Name Order Number Final Assembly Number Hardware Revision Firmware Revision Loader Revision EDD number Quick Start Step 1 (Identification) Step 2 (Application Type) STep 3 (Vessel Shape) Step 4 (Range) Step 5 (Summary) Operation General Select Analog Output D/A Trim Master Reset Simulation/Test Self Test Loop-Test Setup Sensor General Units Operating Mode Material Damping Filter Antenn
Configure/Setup (continued) Calibration Low Calibration Point High Calibration Point’ Sensor Offset Rate Response Rate Fill rate/minute Empty rate/minute Fail-safe Timer Material Level Level Analog Output Scaling Analog Output Scaling mA Output Function Start of Scale Full Scale Control Range lower limit Control Range upper limit Linearization Linearization Vessel Shape Vessel dimensions Max.
Configure/Setup (continued) Setup/Signal Processing (continued) Signal Quality Confidence Echo Strength Noise average Noise Peak TVT TVT Setup Auto False Echo Suppression Range Auto False Echo Suppression Hover Level Shaper Mode TVT Shaper Manual TVT Curve Echo Profile Local Display Maintenance and Diagnostics Lifetime expected Remaining Lifetime Time in Operation Activation of Reminders Reminder 1 before Lifetime (Required) Reminder 2 before Lifetime (Demanded) Remaining Sensor Lifetime Lifetime expecte
Maintenance and Diagnostics (continued) Service Schedule Service Interval Time since last Service Total Service Interval minus Time Since Last Service Activation of Reminders Reminder 1 before Service (Required) Reminder 2 before Service (Demanded) Calibration Schedule Calibration Interval Time since last Calibration Total Until Next Calibration Activation of Reminders Reminder 1 before Calibration (Required) Reminder 2 before Calibration (Demanded) AMS Device Manger mmmmm Electronic Temperature Electro
Notes SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 77 mmmmm AMS Device Manger 7ML19985JE03
Parameter Reference Notes: • Parameter names and menu structure are almost identical for SIMATIC PDM and the local user interface (LUI)1). • Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. • Mode toggles between PROGRAM and Measurement Modes. • For Quick Access to parameters via the handheld programmer, press Home , then enter the menu number, for example: 2.2.1. • In Navigation mode, ARROW keys navigate the menu in the direction of the arrow.
1.5. 1.6. 1.7. 1.8. Operation Mode Low Calibration Point High Calibration Point Apply? (Apply changes) 2. Setup Note: Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. 2.1. Device 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.
2.2.3. Material Automatically configures the device to operate in the chosen application type, by changing one or more of the following parameters: Propagation Factor (2.8.3.), Position Detect (2.8.4.2.), and/or CLEF Range (2.8.4.4.). * LIQUID Options Related parameters a) LIQUID LOW DKa) (low dielectric liquid – CLEF algorithm enabled) Propagation Factor (2.8.3.) Position Detect (2.8.4.2.) CLEF Range (2.8.4.4.) dK < 3.
2.3.2. High Calibration Pt. Distance from sensor reference point1) to High Calibration Point. Units are defined in Units (2.2.1.). Values Range: 0 to 20 m. Default 0.00 m Related parameters Units (2.2.1.) Near Range (2.8.1.) When setting the High Calibration Point value, note that echoes are ignored within Near Range (2.2.1.11). 2.3.3. Sensor Offset A constant offset that can be added to or subtracted from sensor value1) to compensate if the sensor reference point has shifted.
2.4.2. Fill Rate Defines the maximum rate at which the reported sensor value1) is allowed to increase. Allows you to adjust the SITRANS LR250 response to increases in the actual material level. Fill Rate is automatically updated whenever Response Rate is altered. Range: 0 to 99999 m / min. Response Rate (2.4.1.) Options * Slow Fill Rate 0.1 m/min (0.32 ft/min) Medium 1.0 m/min (3.28 ft/min) Fast 10.0 m/min (32.8 ft/min) Altered by: Response Rate (2.4.1.) Related parameters Units (2.2.1.
2.5. Fail-safe Note: Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. 2.5.1. Material Level Note: The default setting depends whether your device is a standard or NAMUR NE 43-compliant device. Defines the mA output to use when the Fail-safe Timer expires. STANDARD DEVICE HI Options 20.5 mA (max. mA Limit) LO * 3.8 mA (min. mA Limit) HOLD Last valid reading (default 22.6 mA) VALUE User-selected value [defined in Level (2.5.3.
2.6. Analog Output Scaling 2.6.1. Current Output Function Notes: • Level, space, and distance, have different reference points. • Use caution when changing Current Output Function while the device is connected to a HART network. Current Output Function controls the primary value and the loop current for the device. • Current Output Function also affects the secondary, tertiary and quaternary variables in a HART network. Can be set to either Level, Space, Distance, or Volume.
2.6.2. Start of Scale (4 mA Setpoint) Sets the process level corresponding to the 4 mA value. 4 mA always defaults to 0, and Current Output Function (2.6.1.) determines whether this is a Level, Space, Distance, or Volume measurement. (See Current Output Function (2.6.1.) for an illustration.) Range: –999999 to +999999 • • Values Default: 0.00 m (set to value corresponding to 0% as defined by Current Output Function) Related Parameters Units (2.2.1.) Current Output Function (2.6.1.
2.6.6. mA Output Value Allows you to use a simulated value to test the functioning of the loop. You can enter 4 mA, 20 mA, or any other user-defined value within the range. Range: 3.56 mA to 22.6 mA Values Read Only unless Current Output Function (2.6.1.) is set to Manual. Related parameter Current Output Function (2.6.1.) a) First set Current Output Function (2.6.1.) to Manual. b) Enter the desired mA value in mA Output Value.
Vessel Shape (cont’d) LCD DISPLAY/ Description LINEAR/ Upright, linear (flat bottom) maximum volume CONICAL BOT/ Conical or pyramidal bottom maximum volume, dimension A A PARABOLIC BOT/Parabolic bottom A HALF SPHERE BOT/ Half-sphere bottom A A 7ML19985JE03 maximum volume, dimension A FLAT SLOPED BOT/ Flat sloped bottom maximum volume, dimension A PARABOLIC ENDS/ Parabolic end horizontal cylinder maximum volume, dimension A, dimension L LINEAR TABLEa)/ Linearization table (level/volume brea
2.7.1.2. Maximum Volume The maximum volume of the vessel. Enter the vessel volume corresponding to High Calibration Point. For example, if your maximum vessel volume is 8000 L, enter a value of 8000. Volume units are defined by the user but are not explicitly stated in the SITRANS LR250 Values Related Parameters 2.7.1.3. Range: 0.0000 to 99999 Default: 100.0 Low Calibration Pt. (2.3.1.) High Calibration Pt. (2.3.2.) Vessel Shape (2.7.1.1.
Enter up to 32 level breakpoints, where the corresponding volume is known. The values corresponding to 100% and 0% levels must be entered. The breakpoints can be ordered from top to bottom, or the reverse. Breakpoints are grouped into four tables: Table 1-8, Table 9-16, Table 17-24, and Table 25-32. Entering breakpoints via SIMATIC PDM: • See Using Linearization via the Quick Start wizard on page 45.
2.8. Signal Processing Note: Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. 2.8.1. Near Range The range in front of the device (measured from the sensor reference point) within which any echoes will be ignored. This is sometimes referred to as blanking or a dead zone. The factory setting is 50 mm past the end of the horn, and the range is dependent on the horn type. Range: 0 to 20 m (0 to 65.6 ft) Values Default depends on antenna. Examples: 1.
2.8.3. Propagation Factor Notes: • When operating in a stillpipe, values for CLEF Range (2.8.4.4.) on page 92, and for the propagation factor, should be set according to the pipe size. See the table below. • For reliable results the horn size must be close to the pipe size. Compensates for the change in microwave velocity due to propagation within a metal stillpipe instead of in free space. Range: 0.3 to 1.5 depending on pipe size. Values Default: 1.0000 Nominal Pipe Sizea) 40 mm (1.
2.8.4.3. Echo Threshold Sets the minimum echo confidence that the echo must meet in order to prevent a Loss of Echo condition and the expiration of the Fail-safe (LOE) timer. When Confidence (2.8.6.1.) exceeds Echo Threshold (2.8.4.3.), the echo is accepted as a valid echo and is evaluated. Values Related Parameters Range: 0 to 99 Default: 5 Timer (2.5.2.) Use this feature when an incorrect material level is reported. 2.8.4.4.
2.8.5.2. Sampling Up Specifies the number of consecutive echoes that must appear above the echo currently selected, before the measurement is accepted as valid. Values 2.8.5.3. Range: 1 to 50 Default: 5 Sampling Down Specifies the number of consecutive echoes that must appear below the echo currently selected, before the measurement is accepted as valid. Values Range: 1 to 50 Default: 2 2.8.6. Echo Quality 2.8.6.1. Confidence Indicates echo reliability: higher values represent better echo quality.
2.8.7. TVT setup Note: Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. 2.8.7.1. Auto False Echo Suppression Used together with Auto False Echo Suppression Range (2.8.7.2.) to screen out false echoes in a vessel with known obstructions. A ’learned TVT’ (time varying threshold) replaces the default TVT over a specified range. See Auto False Echo Suppression (2.8.7.1.) on page 130 for a more detailed explanation.
After Auto False Echo Suppression material level Level (db) Auto False Echo Suppression Range learned TVT false echo default TVT echo marker To set Auto False Echo Suppression via SIMATIC PDM: Open the menu Device – Echo Profile Utilities and click on the tab Auto False Echo Suppression. (For more detailed instructions see Auto False Echo Suppression on page 52.) To set Auto False Echo Suppression via the handheld programmer: OFF Options * ON Default TVT will be used. ’Learned’ TVT will be used.
2.8.7.2. Auto False Echo Suppression Range Specifies the range within which Learned TVT is used (see Auto False Echo Suppression (2.8.7.1.) on page 130 for more detail). Values Related parameters a) b) c) d) 2.8.7.3. Range: 0.00 to 20.00 m Default: 1.00 m Units (1.4.) Calculate range according to Auto False Echo Suppression (2.8.7.1.) steps a) and b). Press RIGHT arrow to open Edit mode. Enter the new value and press RIGHT arrow to accept it. Set Auto False Echo Suppression (2.8.7.1.).
To use TVT shaper via SIMATIC PDM: a) Go to Level Meter > Setup > Signal Processing > TVT setup > Shaper Mode and select On. b) Open the menu Device – Echo Profile Utilities and click on TVT Shaper. For more detail see page 51. To use TVT shaper via LUI (local user interface): a) Go to Shaper Mode (2.8.7.4.) and select On. b) Go to TVT Breakpoint 1-9 (2.8.8.1.). c) Open Shaper 1 and enter the TVT Offset value (between –50 and 50).
3. Diagnostics 3.1. Echo Profile Allows you to request the current echo profile either locally via the handheld programmer, or remotely via SIMATIC PDM, or AMS Device Manager. (For more detail see Echo Processing on page 126.) To request a profile via SIMATIC PDM open the menu Device – Echo Profile Utilities. (For more detail see Echo Profile Utilities on page 49.) To request a profile via the handheld programmer: a) In PROGRAM mode, navigate to LEVEL METER > DIAGNOSTICS (3) > ECHO PROFILE (3.
4. Service Note: Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. 4.1. Master Reset Note: Following a reset to Factory Defaults, complete reprogramming is required. Resets all parameter to factory defaults, with the following exceptions: • • • Device Address (5.1.) remains unchanged. Write Protect (6.2.1.) and PIN to Unlock (6.2.2.) values are not reset. Auto False Echo Suppression (2.8.7.1.) learned TVT is not lost.
Time Units Optionsa) a) Hours; days; years Default: years Selectable only via SIMATIC PDM. 4.2.1. Lifetime Expected Note: The device always operates in years. Changing the units affects only the parameter view of the Remaining Device Lifetime parameters in SIMATIC PDM. Allows you to override the factory default. Unitsa): hours, days, years Range: 0 to 20 years Default: 10.00 years Parameters mmmmm Values a) Units are selectable only via SIMATIC PDM. 4.2.2. Time in Operation Read only.
4.2.4. Reminder Activation Note: To modify this parameter via SIMATIC PDM it must be accessed via the pull-down menu Device – Maintenance. Allows you to enable a maintenance reminder. Reminder 1 (Maintenance Required) Options Reminder 2 (Maintenance Demanded) Reminders 1 and 2 * OFF a) First set the values in Reminder 1 (Required) (4.2.5.)/Reminder 2 (Demanded) (4.2.6.). b) Select the desired Reminder Activation option. 4.2.5. Reminder 1 (Required) If Remaining Lifetime (4.2.3.
4.2.8. Acknowledge Status Indicates which level of maintenance reminder has been acknowledged. In SIMATIC PDM, open the menu View – Device Status, click on the Maintenance tab, and check the Device Lifetime Status window. 4.2.9. Acknowledge Acknowledges the current maintenance reminder. To acknowledge a reminder via SIMATIC PDM: a) Open the menu View – Device Status and click on the tab Maintenance. b) In the Device Lifetime section, click on Acknowledge Warnings.
Time Units Optionsa) a) Hours; days; years Default: years Selectable only via SIMATIC PDM. 4.3.1. Lifetime Expected Note: The device always operates in years. Changing the units affects only the parameter view of Remaining Sensor Life parameters in SIMATIC PDM. Allows you to override the factory default. Unitsa): hours, days, years Values Range: 0 to 20 years Default: 10.00 years Units are selectable only via SIMATIC PDM. The amount of time the sensor has been operating.
4.3.3. Remaining Lifetime Read only. Lifetime Expected (4.3.1.) less Time in Operation (4.3.2.). 4.3.4. Reminder Activation Note: To modify this parameter via SIMATIC PDM it must be accessed via the pull-down menu Device – Maintenance. Allows you to enable a maintenance reminder. Reminder 1 (Maintenance Required) Options Reminder 2 (Maintenance Demanded) Reminders 1 and 2 * OFF a) First set the values in Reminder 1 (Required) (4.3.5.)/Reminder 2 (Demanded) (4.3.6.).
4.3.8. Acknowledge Status Indicates which level of maintenance reminder has been acknowledged. In SIMATIC PDM, open the menu View – Device Status, click on the Maintenance tab and check the Sensor Lifetime Status window. 4.3.9. Acknowledge Acknowledges the current maintenance reminder. To acknowledge a reminder via SIMATIC PDM: a) Open the menu View – Device Status and click on the Maintenance tab. b) In the Sensor Lifetime section click on Acknowledge Warnings.
Time Units Optionsa) a) Hours; days; years Default: years Selectable only via SIMATIC PDM. 4.4.1. Service interval Note: The device always operates in years. Changing the units affects only the parameter view of the Service Interval parameters in SIMATIC PDM. User-configurable recommended time between product inspections. Unitsa): hours, days, years Values Range: 0 to 20 years Default: 1.0 year Parameters mmmmm a) Units are selectable only via SIMATIC PDM. 4.4.2.
4.4.3. Time until Next Service Read only. Service interval (4.4.1.) less Time since Last Service (4.4.2.). 4.4.4. Reminder Activation Note: To modify this parameter via SIMATIC PDM it must be accessed via the pull-down menu Device – Maintenance. Allows you to enable a maintenance reminder.
4.4.8. Acknowledge Status Indicates which level of maintenance reminder has been acknowledged. Open the menu View – Device Status, click on the Maintenance tab and check the Service Schedule Status window. 4.4.9. Acknowledge Acknowledges the current maintenance reminder. To acknowledge a reminder via SIMATIC PDM: a) Open the menu View – Device Status and click on the Maintenance tab. b) In the Service Schedule Status section click on Acknowledge Warnings.
Time Units Optionsa) a) Hours; days; years Default: years Selectable only via SIMATIC PDM. 4.5.1. Calibration Interval Note: The device always operates in years. Changing the units affects only the parameter view of the Calibration Interval parameters in SIMATIC PDM. User-configurable recommended time between product calibrations. Unitsa): hours, days, years Values Range: 0 to 20 years 7ML19985JE03 Units are selectable only via SIMATIC PDM.
4.5.2. Time since Last Calibration Time elapsed since last calibration. Can be reset to zero after performing a calibration. To reset to zero: • In SIMATIC PDM, open the menu Device – Maintenance, click on the Calibration Schedule tab, and click on Calibration Performed to restart the timer and clear any fault messages. • Via the handheld programmer, manually reset Time since Last Calibration (4.5.2.) to zero. 4.5.3. Time until Next Calibration Read only. Calibration Interval (4.5.1.
4.5.6. Reminder 2 (Demanded) If Time until Next Calibration (4.5.3.) is equal to or less than this value, the device generates a Maintenance Demanded reminder. Values Range: 0 to 20 years Default: 0.019 years a) Modify values as required. b) Set Reminder Activation (4.5.4.) to the desired option. 4.5.7. Maintenance Status Indicates which level of maintenance reminder is active.
4.9. LCD Fast Mode Notes: • LCD Fast Mode takes effect only after 30 minutes of inactivity. (Each time the device is powered up, a further 30 minutes of inactivity is required.) • LCD Fast Mode affects Measurement mode only; it has no effect on Navigation mode. Enables a faster rate of measurement from the device by disabling most of the display area. Only the bar graph will be refreshed when LCD Fast Mode is set to ON. ON or OFF Values Default: OFF 4.10.
5. Communication Note: Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. 5.1. Device Address Sets the device address or poll ID on a HART network. Any address other than 0 will cause the output current to be a fixed value, and the current will not indicate the reading. Range: 0 to 15 Values Default: 0 To reset Device Address via SIMATIC PDM: • Open the project in Process Device Network View then right-click on the device.
6.2. Local Access 6.2.1. Write Protect Note: This lock affects only the handheld programmer. A remote master can change configuration if Access Control (6.1.1.) is set to allow this. Prevents any changes to parameters via the handheld programmer. Range: 0 to 9999 Options • * Unlock value (stored in PIN to Unlock (6.2.2.) Lock Off Any other value Lock On To turn Lock On, key in any value other than the Unlock Value stored in PIN to Unlock (6.2.2.).
Parameter Name (Parameter Number) Full Scale (20 mA Setpoint) (2.6.3.) Start of Scale (4 mA Setpoint) (2.6.2.) Access Control (6.1.1.) Algorithm (2.8.4.1.) Auto False Echo Suppression (2.8.7.1.) Auto False Echo Suppression Range (2.8.7.2.) CLEF Range (2.8.4.4.) Confidence (2.8.6.1.) Control Range: upper limit (Max. mA limit) (2.6.5.) Control Range: lower limit (Min. mA limit) (2.6.4.) Current Internal Temperature (3.2.1.) Current Output Function (2.6.1.) Damping Filter (2.2.4.) Device Address (5.1.
A: Parameter List mmmmm Parameter Name (Parameter Number) LCD Fast Mode (4.9.) Level Measurement (2.8.9.1.) Loader Revision (2.1.3.) Low Calibration Pt. (2.3.1.) Lowest value (3.2.3.) mA Output Value (2.6.6.) Manufacture Date (4.6.) Master Reset (4.1.) Material (2.2.3.) Material Level (2.5.1.) Maximum Volume (2.7.1.2.) Memory Test (4.11.) Control Range: lower limit (Min. mA limit) (2.6.4.) Near Range (2.8.1.) PIN to Unlock (6.2.2.) Position Detect (2.8.4.2.) Powered Hours (4.7.) Power-on Resets (4.8.
Appendix B: Troubleshooting Communication Troubleshooting 1) Check the following: • • • • There is power at the instrument. The LCD shows the relevant data. The device can be programmed using the handheld programmer. If any fault codes are being displayed see General Fault Codes on page 119 for a detailed list. Verify that the wiring connections are correct. 3) See the table below for specific symptoms. Corrective action The device cannot be programmed via the handheld programmer.
Device Status Icons B: Troubleshooting mmmmm Icon Page 118 Priority Level Meaning 1 • Maintenance alarm • Measurement values are not valid 2 • Maintenance warning: maintenance demanded immediately • Measured signal still valid 3 • Maintenance required • Measured signal still valid 1 • Process value has reached an alarm limit 2 • Process value has reached a warning limit 3 • Process value has reached a tolerance limit 1 • Configuration error • Device will not work because one or more para
Priority Level Icon Meaning (cont’d) • Data exchanged • No data exchange • Write access enabled Notes: • If more than one fault is present, the device status indicator and text for each fault alternate at 2 second intervals. • Some faults cause the device to go to Fail-safe mode (Fault 52). These are indicated with an asterisk (*). General Fault Codes Code / Icon Meaning Corrective Action * The device was unable to get a measurement within the Fail-safe LOE Timer period.
General Fault Codes (cont’d) B: Troubleshooting mmmmm Code / Icon Meaning Corrective Action S: 4 Device is nearing its lifetime limit according to the value set in Maintenance Demanded Replacement is recommended. Limit. S: 6 Sensor is nearing its lifetime limit according to the value set in Maintenance Required Replacement is recommended. Limit. S: 7 Sensor is nearing its lifetime limit according to the value set in Maintenance Demanded Replacement is recommended. Limit.
General Fault Codes (cont’d) Code / Icon * EEPROM damaged. Repair required: contact your local Siemens representative. * Flash error. Repair required: contact your local Siemens representative. * Factory calibration for the internal temper- Repair required: contact your local Sieature sensor has been lost. mens representative. * Factory calibration for the device has been Repair required: contact your local Sielost. mens representative.
General Fault Codes (cont’d) Code / Icon Meaning Corrective Action * EEPROM corrupt. Repair required: contact your local Siemens representative. * EEPROM corrupt. Repair required: contact your local Siemens representative. * EEPROM corrupt. Repair required: contact your local Siemens representative. S: 49 S: 50 B: Troubleshooting mmmmm S: 51 Fail-safe is activated.
Symptom Operation Troubleshooting (cont’d) Cause Action Display shows S: 0 LOE antenna malfunction: • temperature too high • physical damage • excessive foam • multiple echoes • • • • • check Current Internal Temperature (3.2.1.) use foam deflector or stillpipe relocate use a defoamer set Algorithm (2.8.4.1.
Operation Troubleshooting (cont’d) Cause Action Symptom Fill Rate (2.4.2.) setting incorrect • increase measurement response if possible Reads correctly but occasionally reads high when • vessel is not full • detecting close range echo build up near top of vessel or nozzle • nozzle problem • clean the antenna • use Auto False Echo Suppression (2.8.7.1.) and Auto False Echo Suppression Range (2.8.7.2.
Appendix C: Maintenance SITRANS LR250 requires no maintenance or cleaning under normal operating conditions. Under severe operating conditions, the horn antenna may require periodic cleaning. If cleaning becomes necessary: • Note the antenna material and the process medium, and select a cleaning solution that will not react adversely with either. • Remove the instrument from service and wipe the antenna clean using a cloth and suitable cleaning solution.
Appendix D: Technical Reference Note: Where a number follows the parameter name (for example, Algorithm (2.8.4.1.) this is the parameter access number via the handheld programmer. See Parameter Reference on page 78 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 slurries1). Radar level measurement uses the time of flight principle to determine distance to a material surface.
Process Intelligence is able to differentiate between the true microwave reflections from the surface of the material and unwanted reflections being returned from obstructions such as seam welds or supports within a vessel. The result is repeatable, fast and reliable measurement. This technology was developed as result of field data gained over some twenty years from more than 1,000,000 installations in many industries around the world.
Center Uses center of the echo. Hybrid Uses the Center algorithm for the top part of the vessel, and the CLEF algorithm for the part nearest the vessel bottom, according to the setting for CLEF range. CLEF (Constrained Leading Edge Fit) • • Uses the leading edge of the echo. Is used mainly to process the echo from materials with a low dK value. In an almost empty flat-bottomed vessel, a low dK material may reflect an echo weaker than the echo from the vessel bottom.
Example: CLEF enabled Vessel height: 1.5 m; CLEF range set to 0.5 m default TVT material echo selected vessel bottom echo echo marker CLEF Range (2.8.4.4.) Determines the level below which the CLEF algorithm will be used. Above this level the Center algorithm is used. Echo Threshold (2.8.4.3.) Confidence (2.8.6.1.) describes the quality of an echo. Higher values represent higher quality. Echo Threshold defines the minimum confidence value required for an echo to be accepted as valid and evaluated.
Auto False Echo Suppression (2.8.7.1.) Notes: • For detailed instructions on using this feature via PDM see Auto False Echo Suppression on page 52. • For detailed instructions on using this feature via the handheld programmer see Auto False Echo Suppression (2.8.7.1.) on page 94.
Example after Auto False Echo Suppression Auto False Echo Suppression Range default TVT material echo learned TVT Auto False Echo Suppression Range set to 2 m echo marker false echo 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 end of horn antenna. Near Range allows you to increase the blanking value from its factory default. But Auto False Echo Suppression (2.8.7.1.
Damping Damping Filter (2.2.4.) smooths out the response to a sudden change in level. This is an exponential filter and the engineering unit is always in seconds. In 5 time constants the output rises exponentially: from 63.2% of the change in the first time constant, to almost 100% of the change by the end of the 5th time constant. 4.5 4 3.5 3 Level (m) Damping example time constant = 2 seconds input (level) change = 2 m 2.5 2 1.5 1 0.
Sensor Mode This parameter controls the input. Depending on the reference point used, the measurement reports either Level, Space, or Distance. By default Sensor Mode is set to Level. Operation Description Measurement and associated loop current not being updated. Device defaults to Fail-safe modea).
Loss of Echo (LOE) A loss of echo (LOE) occurs when the calculated measurement is judged to be unreliable because the echo confidence value has dropped below the echo confidence threshold. Confidence (2.8.6.1.) describes the quality of an echo. Higher values represent higher quality. Echo Threshold (2.8.4.3.) defines the minimum confidence value required for an echo to be accepted as valid and evaluated. If the LOE condition persists beyond the time limit set in Timer (2.5.2.
Maximum Process Temperature Chart Flange Adapter versions of SITRANS LR250 WARNING: Internal temperature must not exceed 80 °C (176 °F). Notes: • 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. .
Process Pressure/Temperature derating curves WARNINGS: Never attempt to loosen, remove or disassemble process connection or instrument housing while vessel contents are under pressure. This product is designated as a Pressure Accessory per Directive 97/ 23 / EC and is not intended for use as a safety device. Materials of construction are chosen based on their chemical compatibility (or inertness) for general purposes.
Horn Antenna or Wave Guide WARNING: Never attempt to loosen, remove or disassemble process connection or instrument housing while vessel contents are under pressure. Note: Customer to provide adequate bolting and gasketing to retain vessel pressure and provide sufficient sealing. 1.5" and 2" Threaded Versions pressure (bar, gauge) Process Connection Series: • 51209 or 51251 series fittings.
WARNING: Never attempt to loosen, remove or disassemble process connection or instrument housing while vessel contents are under pressure. Note: Customer to provide adequate bolting and gasketing to retain vessel pressure and provide sufficient sealing. DN50, DN80, DN100, and DN150 Flanged Versions: PN16 pressure (bar, gauge) Process Connection Series: • 51242 or 51252 series flange.
WARNING: Never attempt to loosen, remove or disassemble process connection or instrument housing while vessel contents are under pressure. Note: Customer to provide adequate bolting and gasketing to retain vessel pressure and provide sufficient sealing. 2", 3", and 4" Flanged Versions: 150 lb pressure (bar, gauge) Process Connection Series: • 51242 or 51252 series flange. • Ensure your instrument has the process identification Tag showing one of this series, and 25546 or 25580 stamped on flange.
Loop power Typical Connection Drawing Note: Loop voltage is the voltage at the terminals of the power supply (not the voltage at the terminals of the device).
Curve 2 (Flameproof, Increased Safety, Explosion-proof) Loop Voltage versus Loop Resistance Power Supply Requirements Power Supply Requirements 400 RL = 14.88 * VL - 71.43 Loop Resistance - R L Loop Resistance – RL (30.0V, 375 ohms) 350 300 (21.6V, 250 ohms) 250 200 RL = 73.53 * VL - 1338.24 ALLOWABLE OPERATING AREA 150 100 (18.
Appendix E: Application Examples Note: In the applications illustrated below, values are for example purposes only. You can use these examples as setup references. Enter the values in the parameter tables to select the corresponding functions. Configure the basic settings using the Quick Start wizard parameters. (These parameters are inter-related, and changes take effect only after you select YES to apply changes in the last step.
Horizontal vessel with volume measurement Note: The minimum distance from the flange face to the target is limited by Near Range (2.8.1.). To obtain level measurement/4 to 20 mA output proportional to vessel volume in a chemical vessel: Low Calibration Point = 3.5 m (11.48 ft) from sensor reference point High Calibration Point = 0.5 m (1.64 ft) from sensor reference point Max. fill/empty rate = 0.2 m/min (0.
Application with Stillpipe Notes: • Near Range (2.8.1.) (Blanking) will be set at the factory. Check the Process Device Tag for specific values. • Suitable pipe diameters are 40 mm (1.5”) to 100 mm (4”). • The pipe diameter must be matched with the horn size. Use the largest horn size that will fit the stillpipe/bypass pipe (see Dimensions on page 12). • See Mounting on a Stillpipe or Bypass Pipe on page 22 for installation guidelines.
Propagation Factor/Stillpipe Diameter Nominal Pipe Size a) Propagation Factor CLEF Range (2.8.4.4.) settings a) 40 mm (1.5”) 0.9828 Low Cal Pt. – 700 mm 50 mm (2”) 0.990 Low Cal Pt. – 700 mm 80 mm (3”) 0.991 Low Cal Pt. – 1000 mm 100 mm (4”) 0.9965 Low Cal Pt. – 1000 mm Since pipe dimensions may vary slightly, the propagation factor may also vary.
F: HART Communications mmmmm Appendix F: HART Communications Highway Addressable Remote Transducer, HART, is an industrial protocol that is superimposed on the 4-20 mA signal. It is an open standard, and full details about HART can be obtained from the HART Communication Foundation at www.hartcomm.org SITRANS LR250 can be configured over the HART network using either the HART Communicator 375 by Fisher-Rosemount, or a software package.
Note: HART Communicator 375 is supported by SITRANS LR250 HART. LEVEL METER 1. IDENTIFICATION 1. TAG 2. DESCRIPTION 3. MESSAGE 4. INSTALLATION DATE 5. DEVICE ORDER NUMBER 2. SETUP 1. DEVICE 2. INPUT 7ML19985JE03 1. FIRMWARE REVISION 2. LOADER REVISION 3. HARDWARE REVISION 1. SENSOR CALIBRATION 1. MATERIAL 2. SENSOR UNITS 3. OPERATION 4. LOW CALIBRATION PT. 5. HIGH CALIBRATION PT. 6. NEAR RANGE 7. FAR RANGE 8. PROPAG. FACTOR 9. SENSOR OFFSET 2. VOLUME CONVERSION 1. VESSEL SHAPE 2. MAXIMUM VOLUME 3.
mmmmm F: HART Communications 3. OUTPUT ECHO PROC (continued) 5. NOISE 1. ECHO CONFIDENCE 2. ECHO STRENGTH 3. NOISE AVERAGE 5. TVT SETUP 1. TVT HOVER LEVEL 2. AUTO FALSE ECHO SUPPRESSION 3. AUTO SUPPRESSION RANGE 4. SHAPER MODE 6. TVT SHAPER 1. SHAPER 1-9 (Shaper Points 1-9) 2. SHAPER 10-18 (Shaper Points 10-18) 3. SHAPER 19-27 (Shaper Points 19-27) 4. SHAPER 28-36 (Shaper Points 28-36) 5. SHAPER 37-40 (Shaper Points 37-40) 7. RATE 1. RESPONSE RATE 2. FILL RATE PER MINUTE 3. EMPTY RATE PER MINUTE 1.
5. COMMUNICATION 1. COMMUNICATION CONTROL 6. SECURITY 1. LOCK 2. UNLOCK VALUE 7. 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. 7ML19985JE03 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 149 mmmmm SERVICE 1. LCD FAST MODE 2. LCD CONTRAST 3. SERVICE INTERVAL 1. TIME ELAPSED SINCE LAST SERVICE 2. REMAINING LIFETIME 3.
Appendix G: ATEX Certificates ATEX Certificate SIRA 06ATEX2358X G: ATEX Certificates mmmmm Note: AT EX certificates can be downloaded from the product page of our website at www.siemens.com/LR250.
SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 151 mmmmm G: ATEX Certificates 7ML19985JE03
mmmmm G: ATEX Certificates Page 152 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
ATEX Certificate SIRA 08ATEX1301X 7ML19985JE03 SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 153 mmmmm G: ATEX Certificates CERTIFICATE TO BE ADDED
mmmmm G: ATEX Certificates Page 154 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
SITRANS LR250 (HART) – INSTRUCTION MANUAL Page 155 mmmmm G: ATEX Certificates 7ML19985JE03
Appendix H: Firmware Revision History Firmware Rev. PDM EDD Rev. Date Changes 1.00.03 1.00.03 25/02/2007 • Initial release 1.01.00 1.01.00 27/072007 • EDDa)/SIMATIC PDM: View > Display > Distanceb) correctly reported. EDD/SIMATIC PDM: Improved rendering of the echo profile and TVT. H: Firmware Revision mmmmm • 1.01.01 1.01.01 10/06/2008 • Maintenance release of firmware and EDDa). 1.01.01 1.01.03 17/06/2008 • The internal EDD revision has been incremented. 1.02.01 1.02.
Glossary accuracy: degree of conformity of a measure to a standard or a true value. agitator: mechanical apparatus for mixing or aerating. A device for creating turbulence. algorithm: a prescribed set of well-defined rules or processes for the solution of a problem in a finite number of steps. ambient temperature: the temperature of the surrounding air that comes in contact with the enclosure of the device. antenna: an aerial which sends out and receives a signal in a specific direction.
derating: to decrease a rating suitable for normal conditions according to guidelines specified for different conditions. dielectric: a nonconductor of direct electric current.1) dielectric constant (dK): the ability of a dielectric to store electrical potential energy under the influence of an electric field. Also known as Relative Permittivity. An increase in the dielectric constant is directly proportional to an increase in signal amplitude.
multiple echoes: secondary echoes that appear as double, triple, or quadruple echoes in the distance from the target echo. Near Blanking: see Blanking nozzle: a length of pipe mounted onto a vessel that supports the flange. parameters: in programming, variables that are given constant values for specific purposes or processes. polarization: the property of a radiated electromagnetic wave describing the time-varying direction and amplitude of the electric field vector.
stilling-well: see stillpipe. two wire radar: a low-energy radar. Can be loop powered, analog, intrinsically safe 4 to 20 mA, or a digital (BUS) transmitter. TVT (Time Varying Threshold): a time-varying curve that determines the threshold level above which echoes are determined to be valid. Glossary mmmmm waveguide antenna: a hollow, metallic tube that transmits a microwave signal to the product target.
Index A Abbreviations and Identifications list 3 access control remote access 113 activating LR250 31 agitator blade detection avoiding 92 AMS Device Manager features 60 analog output explanation 132 fail signal 8 select 55 signal range 8 simulate via PDM 56 analog output scale setup 84 approvals 10 Auto False Echo Suppression 130 explanation 130 setup 94 setup via PDM 52 B beam angle values 13, 15 blanking (see Near Range) 131 bypass pipe installation 22 C Damping explanation 132 Damping Filter setup 80
handheld programmer 34 key functions 35 electronic device description (EDD) 41 enclosure opening 24 F factory defaults Master Reset 99 Fail-safe settings 83 Fail-safe Mode explanation 134 Fail-safe Timer explanation 134 false echo see Auto False Echo Suppression 130 Far Range explanation 131 setup 90 flange markings 16, 18 flange sizes chart 16, 18 function keys measurement mode 32 navigation mode 34 H handheld programmer edit mode 34 measurement mode 32 navigation 34 HART device description 146 multidrop
stillpipe requirements 22 sunshield recommended 22 multidrop mode 149 N Near Range explanation 131 setup 90 O operating principles 126 P password protection via AMS 72 via PDM 58 performance specifications 7 PIN to unlock local access 114 pipe sizes flange mounting 16, 18 polarization reference point 22 power 7 power source requirements 24 power supply requirements loop voltage vs.
curves 136 test loop test 56 threaded connection markings 17, 18 trend view trend line 57 troubleshooting communication 117 operation 122 TVT (time varying threshold) explanation 127 TVT Shaper manual adjustment via PDM 51 U unlock value local access 114 uploads/downloads accelerated 87, 96 V vessel shape selection 86 W wear Index mmmmm view via PDM 58 wiring cables 24 connecting HART 25 hazardous areas 25 write protect local access 114 Page 164 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE0
Appendix C: menu chart LCD menu structure SITRANS LR 250 (HART) – INSTRUCTION MANUAL Page 165 SITRANS LR 250 (HART) – INSTRUCTION MANUAL 7ML19985JE02
Appendix C: menu chart LCD menu structure Notes: • In Navigation mode ARROW keys navigate the menu in the direction of the arrow.. • See Parameter Reference on page 78 for detailed information and instructions. LEVEL METER 1. QUICK START 1.1 LANGUAGE 1.2 MATERIAL 1.3 RESPONSE RATE 1.4 UNITS 1.5 OPERAT. MODE 1.6 LOW CALIB. PT. 1.7 HIGH CALIB. PT. 1.8 APPLY? 2. SETUP 2.1 DEVICE 2.1.1 HARDWARE REV 2.1.2 FIRMWARE REV 2.1.3 LOADER REV 2.1.4 ORDER OPTION 2.2 SENSOR 2.2.1 UNITS 2.2.2 SENSOR MODE 2.2.
4.2.7 MAINT STAT 4.2.8 ACK STATUS 4.2.9 ACK 4.3 REMAIN. SENS. LIFE 4.3.1 LIFETIME EXPECTE.. 4.3.2 TIME IN OPER.. 4.3.3 REMAIN. LIFETIME 4.3.4 REMINDER ACTIV. 4.3.5 REMIND. 1 (REQ) 4.3.6 REMIND. 2 (DEM) 4.3.7 MAINT STAT 4.3.8 ACK STATUS 4.3.9 ACK 4.4 SERVICE SCHED. 4.4.1 SERV. INTERVAL 4.4.2 TIME LAST SERV. 4.4.3 TIME NEXT SERV. 4.4.4 REMINDER ACTIV. 4.4.5 REMIND. 1 (REQ) 4.4.6 REMIND. 2 (DEM) 4.4.7 MAINT STAT 4.4.8 ACK STATUS 4.4.9 ACK 4.5 CALIB. SCHED. 4.5.1 CALIB. INTERVAL 4.5.2 TIME LAST CALIB. 4.5.
LCD menus mmmmm Notes Page 168 SITRANS LR250 (HART) – INSTRUCTION MANUAL 7ML19985JE03
www.siemens.com/processautomation Siemens Milltronics Process Instruments Inc. 1954Technology Drive, P.O. Box 4225 Peterborough, ON, Canada K9J 7B1 Tel: (705) 745-2431 Fax: (705) 741-0466 Email: techpubs.smpi@siemens.com Siemens Milltronics Process Instruments Inc. 2009 Subject to change without prior notice *7ml19985JE03* Printed in Canada Rev. 3.
