Page 1 Background coolgray 20%, without history Image should come behind the bar so that the transparency comes to the fore. Do not change the transparency of the bar! Siemens Serif OT, Semibold, 36/30/26 PT, weiss Absatzformat: 01 System 36/30/26 pt 8 mm Radar Transmitters...
Page 2 ___________________ SITRANS LR250 (mA/HART) Introduction ___________________ Safety information ___________________ SITRANS Description ___________________ Installing/mounting Radar Transmitters SITRANS LR250 (mA/HART) ___________________ Connecting ___________________ Commissioning Operating Instructions ___________________ Remote operation ___________________ Parameter reference ___________________ Service and maintenance ___________________ Diagnosing and troubleshooting ___________________ Technical data...
Page 3 Note the following: WARNING Siemens products may only be used for the applications described in the catalog and in the relevant technical documentation. If products and components from other manufacturers are used, these must be recommended or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and maintenance are required to ensure that the products operate safely and without any problems.
Page 4: Table Of Contents
CE Electromagnetic Compatibility (EMC) Conformity ............15 Improper device modifications ....................15 Requirements for special applications ..................16 Use in hazardous areas ......................16 Description ............................... 19 SITRANS LR250 overview ..................... 19 Programming .......................... 20 Applications ..........................20 Approvals and certificates ....................... 20 Installing/mounting ........................... 21 Basic safety information ......................
Page 5 4.4.3 Hygienic versions ........................36 Disassembly ........................... 37 Connecting .............................. 39 Basic safety information ......................39 Connecting SITRANS LR250 ....................39 Wiring setups for hazardous area installations ..............43 5.3.1 Intrinsically safe wiring ......................44 5.3.2 Non-sparking wiring ....................... 45 5.3.3...
Page 6 Configuring a new device via FDT ..................119 Parameter reference ..........................121 Alphabetical parameter list ....................166 Service and maintenance ........................171 Basic safety information ......................171 Cleaning ..........................171 Maintenance and repair work ....................172 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 7 Hygienic encapsulated antenna (DN100 aseptic slotted nut to DIN 11864-1) ....216 12.16 Hygienic encapsulated antenna (DN50 aseptic flange to DIN 11864-2) ......217 12.17 Hygienic encapsulated antenna (DN80 aseptic flange to DIN 11864-2) ......218 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 8 PVDF antenna ........................259 A.5.6 Hygienic encapsulated antenna .................... 260 Loop power ........................... 263 A.6.1 Allowable operating area of SITRANS LR250 ..............263 A.6.2 Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking, Non-incendive) ..... 264 A.6.3 Curve 2 (Flameproof, Increased Safety, Explosion-proof) ........... 264...
Page 9 Appendix C: Certificates and support ..................... 271 Certificates ........................... 271 Technical support ......................... 271 List of abbreviations ..........................273 LCD menu structure ..........................277 14.1 LCD menu structure ......................277 Glossary ..............................281 Index ..............................287 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 10: Introduction
Introduction LR250 mA/HART manual usage Note This manual applies to the SITRANS LR250 mA/HART version only. HART is a registered ® trademark of the HART Communication Foundation. Follow these operating instructions for quick, trouble-free installation, and maximum accuracy and reliability of your device.
Page 11 Flanged encapsulated antenna version • added Hygienic encapsulated antenna version • added 12/2015 N/A Dec 2015 Flameproof radar installation instruc- • tions added Electronic Device Description See Sensor Mode (2.2.2.) for an illustration of Distance. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 12: Designated Use
● Devices/replacement parts should be returned in their original packaging. ● If the original packaging is no longer available, ensure that all shipments are properly packaged to provide sufficient protection during transport. Siemens cannot assume liability for any costs associated with transportation damages.
Page 13: Notes On Warranty
The content reflects the technical status at the time of publishing. Siemens reserves the right to make technical changes in the course of further development.
Page 14: Safety Information
Improper device modifications Danger to personnel, system and environment can result from improper modifications to the device. • Changes or modifications not expressly approved by Siemens could void the user’s authority to operate the equipment. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 15: Industry Canada Conformity
Directive of the European Parliament and of the Council on radio terminal equipment R&TTE equipment and telecommunications terminal equipment and the mutual 1999/5/EC recognition of their conformity. The applicable directives can be found in the EC conformity declaration of the specific device. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 16: Ce Electromagnetic Compatibility (Emc) Conformity
Danger to personnel, system and environment can result from modifications to the device, particularly in hazardous areas. • Only carry out modifications that are described in the instructions for the device. Failure to observe this requirement cancels the manufacturer's warranty and the product approvals. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 17: Requirements For Special Applications
Note Operation under special ambient conditions We highly recommend that you contact your Siemens representative or our application department before you operate the device under special ambient conditions as can be encountered in nuclear power plants or when the device is used for research and development purposes.
Page 18 Safety information 2.4 Use in hazardous areas SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 20: Description
Loss of protection Danger to personnel, system and environment can result from improper use of the device. • SITRANS LR250 is to be used only in the manner outlined in this manual, otherwise protection provided by the device may be impaired.
Page 21: Programming
Approvals and certificates Note For further details see Approvals (Page 191). SITRANS LR250 is available with approvals for General purpose, sanitary or hygienic and for hazardous areas. In all cases, check the nameplate on your device, and confirm the approval rating.
Page 22: Installing/Mounting
Basic safety information Note Material compatibility Siemens can provide you with support concerning selection of sensor components wetted by process media. However, you are responsible for the selection of components. Siemens accepts no liability for faults or failures resulting from incompatible materials.
Page 23: Pressure Applications
Hot, toxic and corrosive process media could be released. • Make sure that the device is suitable for the maximum permissible operating pressure of your system. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 24: Pressure Equipment Directive, Ped, 97/23/Ec
4.1.1.1 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 and 1/20).
Page 25: Installation Location Requirements
(-40 to +176 °F) 392 °F) with FFKM O-ring:-20 to +200 °C (-4 to +392 °F) PVDF -40 to +80 °C -40 to +80 °C (-40 to +176 °F) (-40 to +176 °F) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 26 -40 to +120 °C (-40 to +248 °F) Note Details about the process connection, process temperature and materials are laser etched into the body of the flanged and hygienic versions. All other SITRANS LR250 versions have details listed on a tag. SITRANS LR250 (mA/HART)
Page 27: Proper Mounting
• When mounting, orient the front or back of the device towards the closest vessel wall or obstruction. • Do not rotate the enclosure after programming and vessel calibration, otherwise an error may occur, caused by a polarity shift of the transmit pulse. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 28: Nozzle Design
● An antenna extension (100 mm/3.93") is available for the horn antenna only. ● When installing the SITRANS LR250 with hygienic process connection, it is good hygienic practice to install the antenna in a nozzle that has a maximum length/diameter ratio of 1:1.
Page 29: Nozzle Location
Installing/mounting 4.3 Proper mounting 4.3.2 Nozzle location ● Avoid central locations on tall, narrow vessels ● Nozzle must be vertical and clear of imperfections Preferred Undesirable SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 30 ● There is a signal transmitted outside the beam angle, therefore false targets may be detected. Horn antenna Flanged encapsulated antenna Threaded PVDF antenna Hygienic encapsulated antenna ① Emission cone ② Beam angle SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 31 ● Keep emission cone free of interference from obstructions such as ladders, pipes, I-beams, or filling streams. Access for programming ● Provide easy access for viewing the display and programming via the handheld programmer. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 32: Orientation In A Vessel With Obstructions
Mounting in a pipe greater than 100 mm (4") can cause large errors, and therefore is not recommended. Suitable pipe diameters: Horn antenna 40 to 100 mm (1.5 to 4") PVDF antenna 50 mm (2") only Flanged encapsulated antenna 50 to 100 mm (2 to 4") SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 33: Device Orientation
Bypass pipe installation Stillpipe installation ① ① Vent Align front or back of device with stillpipe slots ② Align front or back of device with ② Slots vents Horn antenna version shown as example SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 34: Installation Instructions
The outer part of the lens on the flanged encapsulated antenna version may not appear to lie flush before installation and this is normal. This will flatten after installation and will not impact the performance of the device. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 35: Threaded Versions
2" 30 – 50 3" 50 – 70 4" 40 – 60 6" 70 – 90 EN1092-1, PN16 / DN50/50A 30 – 50 JIS B 2220, 10K DN80/80A DN100/100A DN150/150A 60 – 80 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 36 For instructions on replacing the lens, see Part replacement (Page 173). See Flanged Horn with extension (Page 200), Raised-Face Flange per EN 1092-1 (Page 230), Flat-Face Flange (Page 233), and Flanged encapsulated antenna (3"/DN80/80A sizes and larger) (Page 206) for dimensions. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 37: Hygienic Versions
(for example, DIN 11864-3). Hygienic encapsulated antenna leak detection port ① Orientation mark for leak detection port ② Leak detection port SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 38: Disassembly
• If the device contains dangerous media, it must be emptied prior to disassembly. Make sure that no environmentally hazardous media are released. • Secure the remaining connections so that no damage can result if the process is started unintentionally. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 39 Installing/mounting 4.5 Disassembly SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 40: Connecting
PE/ground conductor connection of the socket and power plug match each other. • Connecting terminals: Connect the terminals according to the terminal connection diagram. First connect the PE/ground conductor. Connecting SITRANS LR250 WARNING Incorrect connection to power source Danger to personnel, system and environment can result from improper power connection.
Page 41 Connecting 5.2 Connecting SITRANS LR250 WARNING Loss of protection Loss of approvals can result from improper installation. • Check the nameplate on your device, to verify the approval rating. • Use appropriate conduit seals to maintain IP or NEMA rating.
Page 42 Connecting 5.2 Connecting SITRANS LR250 ① ④ Use a 2 mm Allen key to loosen the lid-lock set screw Cable shield ② ⑤ Plug (IP68) Ground terminal ③ Optional cable gland (or NPT cable entry) a) b) May be shipped with the device.
Page 43 Connecting 5.2 Connecting SITRANS LR250 Connecting HART Typical PLC/mA configuration with HART ① ④ Power supply Active PLC ② ⑤ SITRANS LR250 HART modem ③ ⑥ R = 250 Ω HART communicator Note • Depending on the system design, the power supply may be separate from the PLC, or integral to it.
Page 44: Wiring Setups For Hazardous Area Installations
Zone 1 ② Threaded nut acts as partition wall Material: Stainless steel, aluminum, and potting compound (hardness of at least 88 SHORE D; compressive strength of at least 14,000 psi) ③ Zone 0 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 45: Intrinsically Safe Wiring
The connection drawing number listed on the nameplate can be downloaded from our website: Product page (http://www.siemens.com/LR250) Go to Support > Installation Drawings > Level Measurement > SITRANS LR250. ● For power demands see Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking, Non- incendive) (Page 264).
Page 46: Non-Sparking Wiring
The FM/CSA Class 1, Div 2 connection drawing number 23650673 can be downloaded from our website: Product page (http://www.siemens.com/LR250) Go to Support > Installation Drawings > Level Measurement > SITRANS LR250. ● For power demands see Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking, Non- incendive) (Page 264).
Page 47: Flameproof Wiring
● For power demands see Curve 2 (Flameproof, Increased Safety, Explosion-proof) (Page 264). ● For wiring requirements follow local regulations. ● See also Instructions specific to hazardous area installations (Page 48) and the ATEX certificate listed above. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 48: Increased Safety Wiring
The connection drawing number listed on the nameplate can be downloaded from our website: Product page (http://www.siemens.com/LR250) Go to Support > Installation Drawings > Level Measurement > SITRANS LR250 ● For power demands see Curve 2 (Flameproof, Increased Safety, Explosion-proof) (Page 264).
Page 49: Instructions Specific To Hazardous Area Installations
In the event of rare incidents, ignition sources due to impact and friction sparks could occur. This shall be considered when the SITRANS LR250 mA/HART is being installed in locations that specifically require group II, level of protection Ga or Da.
Page 50 ● The equipment shall be bonded to the system earth in accordance with the relevant code of practice. ● When the SITRANS LR250 mA/HART is used in the presence of combustible dust, the gland that is fitted to the equipment shall also be suitable for use in the presence of combustible dust, as certified by an ATEX notified body, in addition, the installation of the gland shall not compromise the IP6X rating of the equipment enclosure.
Page 51 Connecting 5.4 Instructions specific to hazardous area installations SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 52: Commissioning
• Do not expose to temperatures beyond the specified temperature range. • Do not incinerate. • Do not crush, puncture or open cells or disassemble. • Do not weld or solder to the battery’s body. • Do not expose contents to water. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 53: Power Up
6.2.1 Power up Power up the device. A transition screen showing first the Siemens logo and then the current firmware revision is displayed while the first measurement is being processed. The first time the device is configured, you will be prompted to select a language (English, German, French, or Spanish).
Page 54: The Lcd Display
In response to a key press request. For details, see Handheld Programmer (Page 55) for key func- tions in Measurement mode. Fault present ① Device status indicator, see Device status icons (Page 177) ② Text area displays status messages SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 55 ● 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. Parameter view Edit view ① Parameter name ② Parameter number ③ Parameter value/selection SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 56: Handheld Programmer (Part No. 7Ml1930-1Bk)
Then top level menu will be displayed. RIGHT arrow opens PROGRAM mode Opens the top level menu. UP or DOWN arrow toggles between LCD displays measured value in either linear linear units and percent units or percent. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 57: Programming
Manager (Page 97). Parameter menus Note For the complete list of parameters with instructions, see Parameter Reference (Page 121). Parameters are identified by name and organized into function groups. See LCD menu structure (Page 277). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 58 PROGRAM mode within the last 10 minutes, or menu level 1 if power has been cycled since then. ① ② ③ Handheld programmer Display Maximum distance: 300 mm (1 ft) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 59 Open Edit mode. LEFT arrow menu or pa- Open parent menu. rameter Mode menu or pa- Change to MEASUREMENT mode. rameter Home menu or pa- Open top level menu: menu 1. rameter SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 60 ● Key in a new value. ● Press RIGHT arrow to accept it. The LCD returns to parameter view and displays the new selection. ① ② ③ Parameter name Parameter number Current selection SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 61 Numeric Erases the display. editing Decimal point Numeric Enters a decimal point. editing Plus or minus sign Numeric Changes the sign of the entered value. editing Numeral Numeric Enters the corresponding character. editing SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 62: Quick Start Wizard Via The Handheld Programmer
● To change a setting, scroll to the desired item or key in a new value. ● After modifying a value, press RIGHT arrow to accept it and press DOWN arrow move to the next item. ● Quick Start settings take effect only after you select Finish. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 63 Fill rate per Minute (2.4.2.)/Empty rate per Minute (2.4.3.) SLOW 0.1 m/min (0.32 ft/min) 1.0 m/min (3.28 ft/min) FAST 10.0 m/min (32.8 ft/min) Units Sensor measurement units. Options m, cm, mm, ft, in. Default: m SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 64 The point from which High and Low Calibration points are referenced: see Dimension drawings. Low Calibration Point Distance from Sensor Reference to Low Calibration Point: usually process empty level. (See Operation for an illustration.) Values Range: 0.00 to 20.00 m SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 65: Auto False Echo Suppression
Quick Start is successfully completed.) Press DOWN arrow (Finish). Then press LEFT arrow to return to Measurement mode. SITRANS LR250 is now ready to operate. 6.2.3.2 Auto False Echo Suppression If you have a vessel with known obstructions, we recommend using Auto False Echo Suppression to prevent false echo detection.
Page 66: Requesting An Echo Profile
Zoom, and press RIGHT arrow. Press LEFT arrow to Zoom out. ● To update the profile, select Measure and press RIGHT arrow. ● To return to the previous menu, select Exit then press RIGHT arrow. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 67: Application Examples
In each example, after performing a Quick Start, navigate to the other required parameters either via the handheld programmer, or using a Device Management tool (SIMATIC PDM or AMS Device Manager) and enter the appropriate values. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 68: Liquid Resin In Storage Vessel, Level Measurement
● 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 minutes. ① ⑤...
Page 69: 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. ①...
Page 70: Application With Stillpipe
● High Calibration Pt. is 0.5 m (1.65 ft) from the sensor reference point. ● The stillpipe inside diameter is 50 mm (1.96"). ● The maximum rate of filling or emptying is about 0.1 m (4")/min. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 71 Low calibration point - (2.8.4.4.) 0.7 m = 4.3 m (14.1 ft) The recommended values for the propagation factor and for CLEF range are dependent on the stillpipe diameter. Refer to the next table for values. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 72 Note Flanged and Hygienic encapsulated antenna For Flanged encapsulated antenna (7ML5432) and Hygienic encapsulated antenna (7ML5433 ) match the process connection size to the pipe diameter. For example, DN80/3" flange to DN80/3" pipe. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 73 Commissioning 6.3 Application examples SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 74: Remote Operation
The graphic interface in the device makes monitoring and adjustments easy. Feature Function Quick Start (Page 77) Device configuration for simple applications Echo Profile Utilities (Page 84) Easy access to echo profile viewing/comparison, TVT shaping, auto false echo suppression and echo setup SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 75: Features Of Simatic Pdm Rev. 5.2, Sp1
Check the support page of our website to make sure you have the latest version of SIMATIC PDM, the most recent Service Pack (SP) and the most recent hot fix (HF): SIMATIC PDM Version (https://support.automation.siemens.com) Browse to Product Support > Automation Technology > Process control systems > SIMATIC PCS 7 > System components > Plant Device Management >...
Page 76 4. Select the Port Settings tab and double click the Advanced button. 5. If the Use FIFO buffers radio box is selected, click to deselect. ① Deselect Use FIFO buffers radio box 6. Click OK to close out. Close all screens and then reboot. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 77: Updating The Electronic Device Description (Edd)
7.1.3 Updating the Electronic Device Description (EDD) You can locate the EDD in Device Catalog, under Sensors/Level/Echo/SiemensMilltronics/SITRANS LR250. The EDD revision must match the Firmware revision in the device. To install a new EDD: 1. Download the most current EDD from our website: Product page (http://www.siemens.com/LR250)
Page 78: Quick Start Wizard Via Simatic Pdm
• For a vessel with obstructions see Auto False Echo Suppression via SIMATIC PDM (Page 87). Launch SIMATIC PDM, open the menu Device – Wizard - Quick Start, and follow steps 1 to 5. ① Quick Start SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 79 PC/PG and ensure PDM is synchronized with the device. 2. If required, change the language for the local user interface. 3. Click on NEXT to accept the default values. (Description, Message, and Installation Date fields can be left blank.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 80 7.1 Operating via SIMATIC PDM Step 2 – Application Select the application type (level or volume) and the material, then click on NEXT. See Application with Stillpipe (Page 69) for a Low Dielectric Liquid application. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 81 For a vessel with obstructions, see Auto False Echo Suppression via SIMATIC PDM (Page 87). Select the vessel shape, and click on NEXT. Step 4 – Ranges Set the parameters, and click on NEXT. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 82 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 83: Changing Parameter Settings Using Simatic Pdm
2. Adjust parameter values in the parameter value field then Enter. The status fields read Changed. 3. Open the Device menu, click on Download to device, then use File - Save to save settings offline. The status fields are cleared. ① Value fields SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 84: Parameters Accessed Via Pull-Down Menus
Echo Profile Utilities (Page 84) Maintenance (Page 90) Wear (Page 92) Select Analog Output (Page 91) Self Test (Page 91) Loop Test (Page 91) Configuration Flag Reset (Page 91) Master Reset (Page 92) HART Communication (Page 92) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 85: Echo Profile Utilities
● It is recommended to use the Detailed resolution view of the echo profile for troubleshooting. For faster and more coarse views, the Standard resolution may be used. ● Click Save and in the new window enter a name and click OK. ● Click OK to exit. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 86: View Saved Echo Profiles
Click on OK to proceed. The new profiles will be saved with their date and time. ● Click on the tab View Saved Echo Profiles to view the stored profiles. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 87: 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 88: Auto False Echo Suppression
Subtract 0.5 m (20") from this distance, and use the resulting value. 3. Open the menu Device – Echo Profile Utilities and click on the tab Auto False Echo Suppression. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 89 Auto False Echo Suppression to Off or On, click on Transfer to Device. Before Auto False Echo Suppression ① ④ TVT Hover Level Echo marker ② ⑤ Default TVT Material level ③ False echo SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 90: Echo Setup
Auto False Echo Suppression Range Echo marker 7.1.6.6 Echo setup Provides quick access to echo selection, filtering, and response rate parameters. Open the menu Device – Echo Profile Utilities and click on Echo Setup. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 91: Maintenance
1. Open the menu Device – Maintenance, and click on the Service/Calibration Schedule tab. 2. Modify desired values and if desired, set reminders for either or both of Reminder 1 before Lifetime (Required)/Reminder 2 before Lifetime (Demanded). 3. Click Write. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 92: Select Analog Output
3. When you are ready to end simulation, select End and click on OK to return the device to the actual output value. 7.1.6.11 Configuration flag reset To reset the configuration flag to zero, open the menu Device – Configuration Flag Reset and perform a reset. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 93: Master 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). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 94: Process Variables
(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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 95: Trend
7.1.6.16 Trend Open the menu View – Process Variables and click on Trend. Four trend lines can be monitored (distinguished by color in SIMATIC PDM): ① Space ② Distance ③ Level ④ Volume SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 96: Device Status
(HW/FW) Status, and Maintenance status. ① update diagnostics In the Diagnostics window, click on Update diagnostics to update diagnostic information and refresh linked icons. 7.1.6.18 Update Open the menu View – Update to refresh the screen. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 97: Security
1. Open a project, double-click on the device icon, and in the User window select Specialist. 2. Open the menu Options – Settings and click on the Password tab. 3. Enter a new password and re-enter it in the Confirmation window. Click on OK. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 98: Operating Via Ams Device Manager
Please consult the operating instructions or online help for details on using AMS Device Manager. You can find more information at: Emerson (http://www.emersonprocess.com/AMS/) Application Guides for setting up Siemens HART devices with AMS Device Manager are available on our website: Process automation (www.siemens.com/processautomation) 7.2.1...
Page 99: Features Of Ams Device Manager
The EDDs are linked to the type, version of configuration software, and protocol being used. Select the LR250 AMS EDD for the version of AMS installed. EDDs can be downloaded from our website, see Product page (http://www.siemens.com/LR250). The HART EDD for LR250 is labeled as supporting AMS Device Manager version 9.5. This EDD is also operational with AMS version 9.0 and 10.1.
Page 100: Startup
PDM, DTM, FC375) but is reset to 0 if the reset command is sent via LUI. ● Navigate to Configure/Setup > Operation ● In the General field click on Master Reset and accept the option Factory Defaults. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 101: Pull-Down Menu Access
2. In the General field, click on Master Reset and perform a reset to Factory Defaults. 3. Open the pull-down menu Actions – Scan Device to synchronize parameters (upload parameters from the device to AMS). 4. Configure the device via the Quick Start wizard. ① Master reset SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 102: Quick Start Wizard Via Ams Device Manager
1. Navigate to Configure/Setup > Wizard > Quick Start. 2. Click on Step 1. 3. You can accept the default values without modification. (Description, Message, and Installation Date fields can be left blank.) If desired, make changes then click on Apply. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 103 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 104 3. 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 105 ● Select Analog Output [see Select Analog Output (Page 91)] ● Master Reset [see Master Reset (Page 92)] Simulation/Test ● Self Test [see Self Test (Page 91)] ● Loop Test [see Loop Test (Page 91)] SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 106 ● Damping Filter Calibration [see Calibration (2.3.)] ● Low Calibration Point ● High Calibration Point ● Sensor Offset Rate [see Rate (2.4.)] ● Response Rate ● Fill Rate per Minute ● Empty Rate per Minute SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 107 Navigate to Configure/Setup > Setup and click on Analog Output Scaling for access to: Analog Output Scaling [see Analog Output Scaling (2.6.)] ● Current Output Function ● 4 mA Setpoint ● 20 mA Setpoint ● Minimum mA Limit ● Maximum mA Limit SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 108 ● Algorithm ● Position Detect ● Echo Threshold ● CLEF Range Sampling [see Sampling (2.8.5.)] ● Echo Lock ● Sampling Up ● Sampling Down Signal Quality ● Confidence ● Echo Strength ● Noise Average SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 109 Displays the effects of the TVT shaper modifications. Navigate to Configure/Setup > Setup > Signal Processing and click on Manual TVT Curve. Echo Profile ● Navigate to Configure/Setup > Setup > Signal Processing and click on Echo Profile. ● Select Standard operation for faster display. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 110: Maintenance And Diagnostics
● Activation of Reminders ● Reminder 1 before Service (Required) ● Reminder 2 before Service (Demanded) Calibration Schedule [see Calibration Schedule (4.5.)] ● Calibration Interval ● Time Since Last Calibration ● Time Until Next Calibration SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 111: Communication
See Access Control (6.1.1.). ● Write Protect (read only) ● Access Control Local Access [see Local Access (6.2.)] ● Local Write Protected ● PIN to Unlock See also Password Protection (Page 112). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 112: 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 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 113: Password Protection
A standard user can change their password in AMS Device Manager. A Local or Domain Windows user cannot change their password using AMS Device Manager and must request their network administrator to do so. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 114: User Manager Utility
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 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 115: Ams Menu Structure
Remote operation 7.2 Operating via AMS Device Manager 7.2.6 AMS menu structure SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 116 Remote operation 7.2 Operating via AMS Device Manager SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 117 Remote operation 7.2 Operating via AMS Device Manager SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 118 Remote operation 7.2 Operating via AMS Device Manager SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 119: Operating Via Fdt (Field Device Tool)
EDD is independent of the operating system. 7.3.2 SITRANS DTM ● SITRANS DTM is an EDDL interpreter developed by Siemens to interpret the EDD for that device. ● To use SITRANS DTM to connect to a device, you must first install SITRANS DTM on your system and then install the device EDD written for SITRANS DTM.
Page 120: Configuring A New Device Via Fdt
Configuring a new device via FDT The full process to configure a field device via FDT is outlined in an Application Guide which can be downloaded from our website under Support > Application Guides. Product page (http://www.siemens.com/LR250) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 121 Remote operation 7.3 Operating via FDT (Field Device Tool) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 122: Parameter Reference
Select a wizard, press RIGHT arrow to open the first step, and follow the instructions. Note Do not use the Quick Start Wizard to modify individual parameters. (Perform customization only after the Quick Start has been completed.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 123 Hardware Revision (2.1.1.) Corresponds to the electronics hardware of the SITRANS LR250. Firmware Revision (2.1.2.) Corresponds to the firmware that is embedded in the SITRANS LR250. Loader Revision (2.1.3.) Corresponds to the software used to update the SITRANS LR250. Order Option (2.1.4.) Read only.
Page 124 Distance to material surface Low Calibration Point (process empty level) SPACE Distance to material surface High Calibration Point (process full level) DISTANCE Distance to material surface Sensor reference point See Material Level (2.5.1.) for more detail. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 125 Far Range (2.8.2.) The point from which level measurement is referenced, see Threaded Horn Antenna with extension (Page 195), Flanged Horn with extension (Page 200), and Flanged encapsulated antenna (3"/DN80/80A sizes and larger) (Page 206). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 126 0.1 m/min (0.32 ft/min) 10 s Medium 1.0 m/min (3.28 ft/min) 10 s Fast 10.0 m/min (32.8 ft/min) Use a setting just faster than the maximum filling or emptying rate (whichever is faster). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 127 Fill Rate per Minute (2.4.2.) 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 128 Fail-safe timer expires. See Loss of Echo (LOE) (Page 248) for more detail. Sets the time to elapse since the last valid reading, before the Fail-safe Level is reported. Values Range: 0.00 to 7200 seconds Default: 100 s SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 129 ① ⑤ Sensor reference point 4 mA 0% ② ⑥ High calibration point Distance ③ ⑦ 20 mA 100% Level ④ ⑧ Space Low calibration point SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 130 Current Output Function (2.6.1.) ● Enter the reading that is to correspond to a 4 mA output. ● Units are defined in Units (2.2.1.) for Level, Space, or Distance. Units are unspecified for Volume. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 131 3. After completing the test, remember to reset Current Output Function (2.6.1.) to the previous setting. Via SIMATIC PDM: Open the menu Device – Loop Test. For more detail, see Loop Test (Page 91). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 132 NONE/ No volume calculation required CYLINDER/ Maximum volume Flat end horizontal cylinder SPHERE/ Maximum volume Sphere LINEAR/ Maximum volume Upright, linear (flat bottom) CONICAL BOT/ Maximum volume, Conical or pyramidal bot- dimension A SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 133 LINEAR TABLE / Linear- Maximum volume, ization table (level/volume tables 1-32 level and breakpoints) volume breakpoints Linearization Table must be selected in order for level/volume values [see Table 1-8 (2.7.2.)] to be transferred. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 134 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 or shown in the SITRANS LR250. Values Range: 0.0 to 99999 m...
Page 135 6. Repeat steps 3 to 5, until values have been entered for all required breakpoints. Level 1 (2.7.2.1.) 1. Press RIGHT arrow to open Edit mode. 2. Enter level value and press RIGHT arrow to except it. 3. Press DOWN arrow to move to corresponding volume breakpoint. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 136 Volume value (l) 3000 19.5 8000 Table 9-16 (2.7.3.) Table 17-24 (2.7.4.) Table 25-32 (2.7.5.) Signal Processing (2.8.) Note Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 137 Max. = 23 m (75.45 ft) Default: Value for Low Calibration Pt. + 1 m (3.28 ft) Related parameters Units (2.2.1.) Use this feature if the measured surface can drop below the Low Cal. Point in normal operation. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 138 700 or 1000 mm Note Flanged encapsulated antenna For Flanged encapsulated antenna (7ML5432) match the process connection size to the pipe diameter whenever possible (for example, mount a DN80/3" flange on DN80/3" pipe). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 139 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 Range: 0 to 99 Default: 5 Related Parameters LOE Timer (2.5.2.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 140 Position Detect (2.8.4.2.) to Hybrid. Sampling (2.8.5.) Provides a method of checking the reliability of a new echo before accepting it as the valid reading, based on numbers of samples above or below the currently selected echo. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 141 Parameter reference Echo Lock (2.8.5.1.) Note Ensure the agitator is always running while SITRANS LR250 is monitoring the vessel, to avoid stationary blade detection. Selects the measurement verification process. Options Lock Off Maximum Verification (not recommended for radar) Material Agitator...
Page 142 After a measurement, the values from the previous noise shot will be displayed. TVT Setup (2.8.7.) Note Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 143 2. Subtract 0.5 m (20") from this distance, and use the resulting value. 3. Go to Auto False Echo Suppression Range (2.8.7.2.) and enter the value calculated in step 2. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 144 To set Auto False Echo Suppression via the handheld programmer: Options Default TVT will be used. ’Learned’ TVT will be used. LEARN ’Learn’ the TVT The learned TVT takes effect only at the next measurement. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 145 When the device is located in the center of the vessel, the TVT hover level may be lowered to increase the confidence level of the largest echo. Shaper Mode (2.8.7.4.) Enables/disables the TVT shaper. Options SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 146 Values Range: –50 to 50 dB Default: 0 dB Breakpoint 19-27 (2.8.8.3.) Values Range: –50 to 50 dB Default: 0 dB Breakpoint 28-36 (2.8.8.4.) Values Range: –50 to 50 dB Default: 0 dB SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 147 1. In PROGRAM mode, navigate to Level Meter > Diagnostics (3.) > Echo Profile (3.1.) 2. Press RIGHT arrow to request a profile. [For more detail see Requesting an Echo Profile (Page 65)]. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 148 PDM, DTM, FC375) but is reset to 0 if the reset command is sent via LUI. ● 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 and Auto False Echo Suppression Range (2.8.7.2.) are not lost. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 149 ● Click on Snooze to add a year to the Total Expected Device Life. Time Units Options Hours; days; years Default: years Selectable only via SIMATIC PDM. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 150 Units are selectable only via SIMATIC PDM. Time in Operation (4.2.2.) Read only. The amount of time the device has been operating. Remaining Lifetime (4.2.3.) Read only. Lifetime (Expected) (4.2.1.) less Time in Operation (4.2.2.). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 151 Maintenance Status (4.2.7.) 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 152 ● 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 153 Remaining Sensor Life parameters in SIMATIC PDM. Allows you to override the factory default. Values Units : hours, days, years Range: 0 to 20 years Default: 10.00 years Units are selectable only via SIMATIC PDM. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 154 If Remaining Lifetime (4.3.3.) is equal to or less than this value, the device generates a Maintenance Required reminder. Values Range: 0 to Lifetime (Expected) (4.3.1.) Default: 0.164 years 1. Modify values as required. 2. Set Activation of Reminders (4.3.4.) to the desired option. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 155 2. In the Sensor Lifetime section, click on Acknowledge Warnings. To acknowledge a reminder via the handheld programmer: 1. Press RIGHT arrow twice to open parameter view and activate Edit Mode. 2. Press RIGHT arrow to acknowledge the reminder. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 156 ● Click on Service Performed to restart the timer and clear any fault messages. Time Units Options Hours; days; years Default: years Selectable only via SIMATIC PDM. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 157 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. Time Until Next Service (4.4.3.) Read only. Service Interval (4.4.1.) less Time Since Last Service (4.4.2.). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 158 2. Set Activation of Reminders (4.4.4.) to the desired option. Maintenance Status (4.4.7.) 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 159 ● 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. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 160 Remaining Sensor Life parameters in SIMATIC PDM. User-configurable recommended time between product calibrations. Values Units : hours, days, years Range: 0 to 20 years Default: 1.0 year Units are selectable only via SIMATIC PDM. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 161 If Time Until Next Calibration (4.5.3.) is equal to or less than this value, the device generates a Maintenance Required reminder. Values Range: 0 to Calibration Interval (4.5.1.) Default: 0.164 years 1. Modify values as required. 2. Set Activation of Reminders (4.5.4.) to the desired option. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 162 2. Press RIGHT arrow to acknowledge the reminder. Manufacture Date (4.6.) Read only. The date of manufacture of the SITRANS LR250 (yy mm dd). Powered Hours (4.7.) Read only. Displays the number of hours the unit has been powered up since manufacture.
Page 163 Secondary Value, and displays the value for that parameter on the LCD display when in Measurement mode. See The LCD Display (Page 53) for an illustration. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 164 Parameter reference Memory Test (4.12.) Allows verification of the RAM, EEPROM, and Flash memory of the SITRANS LR250. LCD Display IDLE No test in progress. BUSY Test in progress. PASS Memory test successful. FAIL Test failed. Err1 Test returned unexpected results.
Page 165 No changes are permitted via remote com- munications. Read Write Changes are permitted. Restricted Sets the status to Read only, with the poten- tial for another HART device to change this parameter only, via remote communications. Local Access (6.2.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 166 Value when shipped: 1954. Not restored by a reset to Factory Defaults. – – – – Display when Lock is on Language (7.) Selects the language to be used on the LCD. Options English Deutsch Français Español SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 167: Alphabetical Parameter List
Current Output Function (2.6.1.) Damping Filter (2.2.4.) Device (2.1.) Device Address (5.1.) Diagnostics (3.) Distance Measurement (2.8.9.3.) Echo Lock (2.8.5.1.) Echo Profile (3.1.) Echo Quality (2.8.6.) Echo Select (2.8.4.) Echo Strength (2.8.6.2.) Echo Threshold (2.8.4.3.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 168 Master Reset (4.1.) Material (2.2.3.) Material Level (2.5.1.) Maximum mA limit (2.6.5.) Maximum Volume (2.7.1.2.) Measured Values (2.8.9.) Memory Test (4.12.) Menu Timeout (2.1.5.) Minimum mA limit (2.6.4.) Near Range (2.8.1.) Noise Average (2.8.6.3.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 169 Table 1-8 (2.7.2.) Table 9-16 (2.7.3.) Table 17-24 (2.7.4.) Table 25-32 (2.7.5.) TVT Setup (2.8.7.) TVT Shaper (2.8.8.) Units (2.2.1.) Vessel Dimension A (2.7.1.3.) Vessel Dimension L (2.7.1.4.) Vessel Shape (2.7.1.1.) Volume (2.7.1.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 170 Parameter reference 8.1 Alphabetical parameter list Volume 1 (2.7.2.2.) Volume Measurement (2.8.9.4.) Write Protect (6.2.1.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 171 Parameter reference 8.1 Alphabetical parameter list SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 172: Service And Maintenance
Service and maintenance Basic safety information WARNING Impermissible repair of the device • Repair must be carried out by Siemens authorized personnel only. CAUTION Releasing key lock Improper modification of parameters could influence process safety. • Make sure that only authorized personnel may cancel the key locking of devices for safety-related applications.
Page 173: Maintenance And Repair Work
• If working on an energized device is necessary, ensure that the environment is dry. • Make sure when carrying out cleaning and maintenance work that no moisture penetrates the inside of the device. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 174: Unit Repair And Excluded Liability
Replacing the antenna Changing to a different antenna type may be performed by a Siemens authorized repair center or personnel. If the electronics or enclosure require replacement due to damage or failure, please ensure the correct antenna version is used, otherwise a re-calibration will need to be performed by Siemens authorized personnel.
Page 175 Tuchenhagen, Hygienic encapsulated antenna Lens and silicon Type F A5E32572794 O-ring Type N A5E32572795 Note For more information about accessories such as clamps, seals and process connections, please see the catalog on the product page (http://www.siemens.com/LR250). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 176: Disposal
Service and maintenance 9.4 Disposal Disposal Note Special disposal required The device includes components that require special disposal. • Dispose of the device properly and environmentally through a local waste disposal contractor. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 177 Service and maintenance 9.4 Disposal SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 178: Diagnosing And Troubleshooting
Ensure Write Protect (6.2.1.) is set to the unlock • handheld programmer. value. You try to set a SITRANS LR250 parame- Ensure Write Protect (6.2.1.) is set to the unlock • ter via remote communications but the value, then try setting the parameter via the handheld parameter remains unchanged.
Page 179 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. • Data exchanged • No data exchange • Write access enabled • Write access disabled • SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 180: General Fault Codes
Adjust process conditions to minimize foam or other tions, invalid configuration range. • adverse conditions. Correct configuration range. • If fault persists, contact your local Siemens repre- • sentative. S: 2 Unable to collect profile because of a power Repair required: contact your local Siemens representa- condition that is outside the operating range of tive.
Page 181 S: 34 Factory calibration for the device has been lost. Repair required: contact your local Siemens representa- tive S: 35 Factory calibration for the device has been lost. Repair required: contact your local Siemens representa-...
Page 182 • conditions, invalid calibration range. If fault persists, or for 1 and 2, contact your local Siemens representative. S: 53 Configuration lost: one or more parameter Restore user parameters using SIMATIC PDM.
Page 183: Operation Troubleshooting
Low Calibration Pt. (2.3.1.) • increase Confidence (2.8.6.1.) • Display shows material build-up on antenna clean the antenna • re-locate SITRANS LR250 • Display shows location or aiming: check to ensure nozzle is vertical • poor installation • ensure end of antenna protrudes from end of nozzle •...
Page 184 Fill Rate per Minute (2.4.2.) • relocate device to side pipe • increase confidence threshold in Echo Threshold (2.8.4.3.) • material filling Re-locate SITRANS LR250 • Reading response Fill Rate per Minute (2.4.2.) set- increase measurement response if possible • slow...
Page 186: Technical Data
Technical data Note Device specifications Siemens makes every attempt to ensure the accuracy of these specifications but reserves the right to change them at any time. 11.1 Power General Purpose Intrinsically Safe Nominal 24 V DC at 550 Ohm Non-Sparking...
Page 187 Tuchenhagen Types F and N hygienic encapsulated antenna the minimum dK is limited to 3 unless a stillpipe is used. See Flanged horn antenna (Page 200). See Flanged encapsulated antenna (3"/DN80/80A sizes and larger) (Page 206). See Hygienic encapsulated antenna (2" ISO 2852 sanitary clamp) (Page 208). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 188: Interface
Max. line length multi-wire: ≤ 1500 m (4921 ft) 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 See A.6.3 for details on version exclusions...
Page 189 2" horn antenna DN100 PN25/40 or 4" ASME 300 lb flat-face approximately 17.4 kg (38.3 lb) flange with 4" horn antenna DN50 PN10/16 raised-face flange with 2" approximately 6 kg (13.2 lb) horn antenna SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 190 DN100 DIN 11851 HEA approximately 7.2 kg (15.9 lb) Tuchenhagen Type F HEA approximately 4.8 kg (10.6 lb) Tuchenhagen Type N HEA approximately 4.9 kg (10.8 lb) For use with 1.5" (40 mm) horn antennas only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 191: Environmental
-20 to +170 °C (-4 to +338 °F) with EPDM seals used on process connection: - 40 to +120 °C (-40 to +248 °F) Pressure (vessel) Refer to process connection tag and Process Pressure/Temperature derating curves (Page 253). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 192: Approvals
-40 °C ≤ Ta ≤ +80 °C = 250 V DNV #OCP 0017 ABNT NBR IEC 60079-0:2008, ABNT NBR IEC 60079-1:2009, ABNT NBR IEC 60079-11:2009, ABNT NBR IEC 60079-18:2010, ABNT NBR IEC 60079-26:2008, ABNT NBR IEC 60079-31:2011 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 193 Class II, Div. 1, Groups E, F, G Class III T4 Marine Lloyd's Register of Shipping ABS Type Approval BV Type Approval Hygienic/Sanitary EHEDG EL Class I International EHEDG EL Class I Aseptic 3-A Sanitary Standards SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 194: 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 was produced on March 26, 2008. Siemens Milltronics Infrared IS (Intrinsically Safe) Handheld Programmer for hazardous and all other locations (battery is non-replaceable). Approvals FM/CSA Class I, II, III, Div.
Page 195 Technical data 11.8 Programmer (infrared keypad) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 196: Dimension Drawings
• Process connection drawings are also available for download from the Installation Drawings page. • Signal amplitude increases with horn diameter, so use the largest practical size. • Optional extensions can be installed below the threads. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 197 ② ⑧ threaded cover retaining collar ③ ⑨ 2" horn process connection tag ④ ⑩ 3" horn horn ⑤ ⑪ 4" horn sensor reference point ⑥ horn O.D. Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 198 20 (65.6) Height from bottom of horn to sensor reference point as shown: see dimension drawing. -3dB in the direction of the polarization axis. For an illustration, see Polarization reference point (Page 31). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 199: Threaded Horn Antenna With Extension
② ⑧ threaded cover retaining collar ③ ⑨ 2" horn process connection tag ④ ⑩ 3" horn horn ⑤ ⑪ 4" horn sensor reference point ⑥ horn O.D. Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 200 20 (65.6) Height from bottom of horn to sensor reference point as shown: see dimension drawing. -3dB in the direction of the polarization axis. For an illustration, see Polarization reference point (Page 31). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 201: Flanged Horn Antenna
½" NPT cable entry, or M20 cable gland flange ② ⑦ threaded cover name-plate ③ ⑧ horn retaining collar ④ ⑨ horn O.D. process connection tag ⑤ ⑩ enclosure/electronics sensor reference point Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 202 C-22 or equivalent). See Raised-Face Flange ® Dimensions (Page 227). Note Heights to sensor reference point are for stainless steel flanges. For optional alloy N06022/2.4602 (Hastelloy C-22 or equivalent) see Flanged Horn dimensions above. © SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 203: Flanged Horn Antenna With Extension
½" NPT cable entry, or M20 cable gland flange ② ⑦ threaded cover name-plate ③ ⑧ horn retaining collar ④ ⑨ horn O.D. process connection tag ⑤ ⑩ enclosure/electronics sensor reference point Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 204 C-22 or equivalent). See Raised-Face flange ® (Page 227). Note Heights to sensor reference point are for stainless steel flanges. For optional alloy N06022/2.4602 (Hastelloy C-22 or equivalent) see Flanged Horn dimensions above. © SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 205: Flanged Encapsulated Antenna (2"/Dn50/50A Sizes Only)
② ⑦ threaded cover see table below ③ ⑧ see table below see table below ④ ⑨ enclosure sensor reference point ⑤ ⑩ retaining collar see table below Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 206 DN50 PN10/16 165 (6.50) 155 (6.10) -3 dB in the direction of the polarization axis. 20m if installed in stillpipe See Raised-Face Flange per EN 1092-1, (Page 230)and Polarization reference point (Page 31). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 207: Flanged Encapsulated Antenna (3"/Dn80/80A Sizes And Larger)
② ⑦ threaded cover see table below ③ ⑧ see table below see table below ④ ⑨ enclosure sensor reference point ⑤ ⑩ flange see table below Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 208 75 (2.95) 20 (65.6) DN150 PN10/16 285 (11.22) 150A 280 (11.02) -3 dB in the direction of the polarization axis. See Raised-Face Flange per EN 1092-1 (Page 230), and Polarization reference point (Page 31). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 209: Hygienic Encapsulated Antenna (2" Iso 2852 Sanitary Clamp)
Dimension drawings 12.7 Hygienic encapsulated antenna (2" ISO 2852 sanitary clamp) 12.7 Hygienic encapsulated antenna (2" ISO 2852 sanitary clamp) Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 210: Hygienic Encapsulated Antenna (3" Iso 2852 Sanitary Clamp)
Dimension drawings 12.8 Hygienic encapsulated antenna (3" ISO 2852 sanitary clamp) 12.8 Hygienic encapsulated antenna (3" ISO 2852 sanitary clamp) Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 211: Hygienic Encapsulated Antenna (4" Iso 2852 Sanitary Clamp)
Dimension drawings 12.9 Hygienic encapsulated antenna (4" ISO 2852 sanitary clamp) 12.9 Hygienic encapsulated antenna (4" ISO 2852 sanitary clamp) Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 212: Hygienic Encapsulated Antenna (Dn50 Nozzle/Slotted Nut To Din 11851)
12.10 Hygienic encapsulated antenna (DN50 nozzle/slotted nut to DIN 11851) 12.10 Hygienic encapsulated antenna (DN50 nozzle/slotted nut to DIN 11851) Dimensions in mm (inch) Note Cut out of process connection and placement of threaded nut are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 213: Hygienic Encapsulated Antenna (Dn80 Nozzle/Slotted Nut To Din 11851)
12.11 Hygienic encapsulated antenna (DN80 nozzle/slotted nut to DIN 11851) 12.11 Hygienic encapsulated antenna (DN80 nozzle/slotted nut to DIN 11851) Dimensions in mm (inch) Note Cut out of process connection and placement of threaded nut are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 214: Hygienic Encapsulated Antenna (Dn100 Nozzle/Slotted Nut To Din 11851)
12.12 Hygienic encapsulated antenna (DN100 nozzle/slotted nut to DIN 11851) 12.12 Hygienic encapsulated antenna (DN100 nozzle/slotted nut to DIN 11851) Dimensions in mm (inch) Note Cut out of process connection and placement of threaded nut are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 215: Hygienic Encapsulated Antenna (Dn50 Aseptic Slotted Nut To Din 11864-1)
12.13 Hygienic encapsulated antenna (DN50 aseptic slotted nut to DIN 11864-1) 12.13 Hygienic encapsulated antenna (DN50 aseptic slotted nut to DIN 11864-1) Dimensions in mm (inch) Note Cut out of process connection and placement of threaded nut are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 216: Hygienic Encapsulated Antenna (Dn80 Aseptic Slotted Nut To Din 11864-1)
12.14 Hygienic encapsulated antenna (DN80 aseptic slotted nut to DIN 11864-1) 12.14 Hygienic encapsulated antenna (DN80 aseptic slotted nut to DIN 11864-1) Dimensions in mm (inch) Note Cut out of process connection and placement of threaded nut are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 217: Hygienic Encapsulated Antenna (Dn100 Aseptic Slotted Nut To Din 11864-1)
12.15 Hygienic encapsulated antenna (DN100 aseptic slotted nut to DIN 11864-1) 12.15 Hygienic encapsulated antenna (DN100 aseptic slotted nut to DIN 11864-1) Dimensions in mm (inch) Note Cut out of process connection and placement of threaded nut are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 218: Hygienic Encapsulated Antenna (Dn50 Aseptic Flange To Din 11864-2)
12.16 Hygienic encapsulated antenna (DN50 aseptic flange to DIN 11864-2) 12.16 Hygienic encapsulated antenna (DN50 aseptic flange to DIN 11864-2) Dimensions in mm (inch) Note Cut out of process connection and flange are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 219: Hygienic Encapsulated Antenna (Dn80 Aseptic Flange To Din 11864-2)
12.17 Hygienic encapsulated antenna (DN80 aseptic flange to DIN 11864-2) 12.17 Hygienic encapsulated antenna (DN80 aseptic flange to DIN 11864-2) Dimensions in mm (inch) Note Cut out of process connection and flange are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 220: Hygienic Encapsulated Antenna (Dn100 Aseptic Flange To Din 11864-2)
12.18 Hygienic encapsulated antenna (DN100 aseptic flange to DIN 11864-2) 12.18 Hygienic encapsulated antenna (DN100 aseptic flange to DIN 11864-2) Dimensions in mm (inch) Note The cut out of the process connection and the flange are shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 221: Hygienic Encapsulated Antenna (Dn50 Aseptic Clamp To Din 11864-3)
12.19 Hygienic encapsulated antenna (DN50 aseptic clamp to DIN 11864-3) 12.19 Hygienic encapsulated antenna (DN50 aseptic clamp to DIN 11864-3) Dimensions in mm (inch) Note Cut out of process connection is shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 222: Hygienic Encapsulated Antenna (Dn80 Aseptic Clamp To Din 11864-3)
12.20 Hygienic encapsulated antenna (DN80 aseptic clamp to DIN 11864-3) 12.20 Hygienic encapsulated antenna (DN80 aseptic clamp to DIN 11864-3) Dimensions in mm (inch) Note Cut out of process connection is shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 223: Hygienic Encapsulated Antenna (Dn100 Aseptic Clamp To Din 11864-3)
12.21 Hygienic encapsulated antenna (DN100 aseptic clamp to DIN 11864-3) 12.21 Hygienic encapsulated antenna (DN100 aseptic clamp to DIN 11864-3) Dimensions in mm (inch) Note Cut out of process connection is shown for illustration purposes only. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 224: Hygienic Encapsulated Antenna (Tuchenhagen Type N)
Dimension drawings 12.22 Hygienic encapsulated antenna (Tuchenhagen Type N) 12.22 Hygienic encapsulated antenna (Tuchenhagen Type N) Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 225: Hygienic Encapsulated Antenna (Tuchenhagen Type F)
Dimension drawings 12.23 Hygienic encapsulated antenna (Tuchenhagen Type F) 12.23 Hygienic encapsulated antenna (Tuchenhagen Type F) Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 226: Threaded Pvdf Antenna
Height from bottom of antenna to sensor reference point as shown: see dimension drawing. -3dB in the direction of the polarization axis. See Polarization reference point (Page 31) for an illustration. 20m when installed in stillpipe. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 227: Threaded Connection Markings
Serial number: a unique number allotted to each process connection, including the date of manufacture (MMDDYY) followed by a number from 001 to 999, (indicating the sequential unit produced). SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 228: Raised-Face Flange
② ⑦ bolt hole diameter facing height ③ ⑧ bolt hole circle diameter facing diameter ④ ⑨ waveguide mounting hole sensor reference point ⑤ ⑩ Flange O.D. thickness SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 229 19.1 24.4 76.2 127.0 4" 228.6 190.5 19.1 31.8 22.5 95.3 157.2 2" 165.1 127.0 19.1 28.4 63.5 92.1 3" 209.6 168.3 22.3 35.1 84.2 127.0 4" 254.0 200.2 22.3 38.1 100.1 157.2 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 230 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 231: Raised-Face Flange Per En 1092-1 For Flanged Encapsulated Antenna
Raised-Face flange per EN 1092-1 for flanged encapsulated antenna Stainless steel ① ⑤ angle of adjacent bolt holes flange O.D. ② ⑥ bolt hole diameter facing height ③ ⑦ bolt hole circle diameter facing diameter ④ ⑧ antenna flange thickness SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 232 16 (0.63) 2 (0.08) (6.10) 150 (5.91) 126 (4.96) 18 (0.71) 2 (0.08) (7.28) 100A 175 (6.89) 151 (5.94) 2 (0.08) (8.27) 150A 240 (9.45) 23 (0.91) 212 (8.35) 22 (0.87) 2 (0.08) (11.02) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 233 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 234: Flat-Face Flange
Dimension drawings 12.28 Flat-Face flange 12.28 Flat-Face flange SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 235 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 236: Aseptic/Hygienic Flange Dn50, Dn80, Dn100 For Din 11864-2
Dimension drawings 12.29 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2 12.29 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2 Aseptic/hygienic flange DN50 Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 237 Dimension drawings 12.29 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2 Aseptic/hygienic flange DN80 Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 238 Dimension drawings 12.29 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2 Aseptic/hygienic flange DN100 Dimensions in mm (inch) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 239: Process Connection Tag (Pressure Rated Versions)
● Pressure Tag Family Series: the identification number used to indicate specific process connection information relating to operating conditions. ● For Flanged encapsulated antenna: this information is laser-etched on antenna body BACK FACE Sample Text Comments/Explanation CRN 0Fxxxxx.5 Canadian Registration Number (CRN) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 240: Appendix A: Technical Reference
(Page 121) 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. (The microwave output level is significantly less than that emitted from cellular phones.) Radar level measurement uses the time of flight principle to determine distance...
Page 241: Echo Selection
In most cases the material echo is the only one which rises above the default TVT. In a vessel with obstructions, a false echo may occur. See Auto False Echo Suppression (Page 244) for more details. ① default TVT ② echo profile ③ material level ④ echo marker SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 242 The CLEF algorithm enables the device to report the level correctly. Example: CLEF off: Position set to Hybrid Vessel height: 1.5 m; CLEF range set to 0 (Center algorithm gives the same result.) SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 243 ④ echo marker Example: CLEF enabled Vessel height: 1.5 m; CLEF range set to 0.5 m ① default TVT ② material echo selected ③ vessel bottom echo ④ echo marker SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 244: Clef Range
In radar applications, two measurement verification options are used with Echo Lock (2.8.5.1.): 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 245: Auto False Echo Suppression
Example before Auto False Echo Suppression ① ⑤ default TVT high calibration point = 0 ② ⑥ false echo obstruction at 1.3. m ③ ⑦ material echo material level at 3.2 m ④ sensor reference point SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 246: 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 (2.8.7.1.) is generally recommended in preference to extending the blanking...
Page 247: Measurement Response
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. Damping example time constant = 2 seconds input (level) change = 2 m SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 248: 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). It stores the most recent measurement, and holds the associated readings and mA signal output.
Page 249: Current Output Function
Service Required icon, and the text region displays the fault code S: 0 and the text LOE. If two faults are present at the same time, the fault code, error text, and error icon for each fault are displayed alternately. For example, Loss of Echo and Fail-safe. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 250: Fail-Safe Mode
• 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 sunlight exposure.
Page 251: Process Pressure/Temperature Derating Curves
• Make sure that the device is suitable for the maximum permissible operating pressure of your system. DANGER Pressure applications Danger to personnel, system and environment will result from improper disassembly. • Never attempt to loosen, remove, or disassemble process connection while vessel contents are under pressure. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 252: Pressure Equipment Directive, Ped, 97/23/Ec
Note Material compatibility Siemens can provide you with support concerning selection of sensor components wetted by process media. However, you are responsible for the selection of components. Siemens accepts no liability for faults or failures resulting from incompatible materials.
Page 253: Horn Antenna
Appendix A: Technical reference A.5 Process Pressure/Temperature derating curves A.5.2 Horn antenna 1.5", 2" and 3" [NPT, G (BSPP), R (BSPT)] Threaded Versions ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 254: Flanged Horn Antenna
Appendix A: Technical reference A.5 Process Pressure/Temperature derating curves A.5.3 Flanged horn antenna JIS B 2220, 10K: 50A, 80A, and 100A ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 255 Appendix A: Technical reference A.5 Process Pressure/Temperature derating curves EN1092-1, PN16: DN50, DN80, DN100, and DN150 ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 256 Appendix A: Technical reference A.5 Process Pressure/Temperature derating curves EN1092-1, PN40: DN50, DN80, DN100, and DN150 ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 257 ASME B16.5, Class 150: 2", 3", and 4" NPS ① Atmospheric Allowable operating pressures Allowable operating temperatures ASME B16.5, Class 300: 2", 3", and 4" NPS ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 258: Flanged Encapsulated Antenna
ASME B16.5, Class 150: 2", 3", 4", and 6" NPS ① Atmospheric Allowable operating pressures Allowable operating temperatures JIS B 2220, 10K: 50A, 80A, 100A, and 150A ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 259 Appendix A: Technical reference A.5 Process Pressure/Temperature derating curves EN1092-1, PN10/16: DN50, DN80, DN100, and DN150 ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 260: Pvdf Antenna
Appendix A: Technical reference A.5 Process Pressure/Temperature derating curves A.5.5 PVDF antenna ASME B1.20.1 2" NPT, EN ISO 228-1 2" G (BSPP), EN 10226-1 2" R (BSPT) ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 261: Hygienic Encapsulated Antenna
A.5 Process Pressure/Temperature derating curves A.5.6 Hygienic encapsulated antenna DIN 11851 Sanitary/Hygienic nozzle/slotted nut: DN50, DN80, and DN100 DIN 11864-1 Aseptic/Hygienic nozzle/slotted nut: DN50, DN80, and DN100 ① Atmospheric Allowable operating pressures Allowable operating temperatures SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 262 Appendix A: Technical reference A.5 Process Pressure/Temperature derating curves DIN 11864-2 Aseptic/Hygienic flanged: DN50, DN80, and DN100 ① Atmospheric Allowable operating pressures Allowable operating temperatures Note For pressure applications, all attachment hardware must be suitably rated. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 263 IS0 2852 Sanitary/Hygienic clamp: 2", 3", and 4" Tuchenhagen Varivent face seal clamp: Type N (68 mm) and Type F (50 mm) ① Atmospheric Allowable operating pressures Allowable operating temperatures Note For pressure applications, all clamps must be rated accordingly. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 264: Loop Power
Power supply ③ Loop resistance RL ④ Loop current IL ⑤ LR250 A.6.1 Allowable operating area of SITRANS LR250 Note The curves below apply to a standalone device, configured via the Siemens handheld programmer. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 265: Curve 1 (General Purpose, Intrinsically Safe, Non-Sparking, Non-Incendive)
When using HART communications, the minimum voltage with 220 Ohms (RL) is 16.3 V DC. A.6.3 Curve 2 (Flameproof, Increased Safety, Explosion-proof) Loop Voltage versus Loop Resistance Note When using HART communications, the minimum voltage with 220 Ohms (RL) is 20.94 V SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 266: Startup Behavior
Appendix A: Technical reference A.7 Startup behavior Startup behavior ● The device draws less than 3.6 mA at startup. ● Time to first measurement is less than 50 seconds. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 267 Appendix A: Technical reference A.7 Startup behavior SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 268: Appendix B: Hart Communications
HART Handheld 375/475 If the SITRANS LR250 HART device revision is higher than revision 2, the FC375 will report that the Device Description is not installed and will ask whether you wish to proceed in forward compatibility mode.
Page 269: Hart Communicator 375 Menu Structure
Appendix B: HART communications B.4 HART Communicator 375 menu structure HART Communicator 375 menu structure Note HART Communicator 375 is supported by SITRANS LR250 HART. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 270 Appendix B: HART communications B.4 HART Communicator 375 menu structure SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 271: Hart Version
Appendix B: HART communications B.5 HART version HART version SITRANS LR250 conforms to HART rev. 5. B.5.1 Burst Mode SITRANS LR250 does not support burst mode. B.5.2 HART Multidrop Mode We do not recommend the use of HART Multidrop Mode.
Page 272: Appendix C: Certificates And Support
● Information about field service, repairs, spare parts and lots more under "Services." Additional Support Please contact your local Siemens representative and offices if you have additional questions about the device Find your contact partner at: Local contact person (http://www.siemens.com/automation/partner)
Page 274: List Of Abbreviations
Primary Variable measured value PVDF Polyvinylidene fluoride Secondary Variable equivalent value Transducer Block Time Varying Threshold sensitivity threshold TFM1600 PTFE Modified PTFE polytetrafluoroethylene with perfluoropropyl vinyl ether (PPVE) modifier Input voltage Output voltage SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 275 List of abbreviations SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 276 List of abbreviations SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 278: Lcd Menu Structure
LCD menu structure 14.1 LCD menu structure Note • In Navigation mode, ARROW keys ( ) navigate the menu in the direction of the arrow. See Parameter Reference (Page 121) for detailed information and instructions. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 279 LCD menu structure 14.1 LCD menu structure SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 280 LCD menu structure 14.1 LCD menu structure SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 282: Glossary
TVT distance. (See TVT.) This is used in conjunction with auto false echo suppression. beam spreading the divergence of a beam as it travels through a medium. beam width the angle diametrically subtended by the one-half power limits (-3 dB) of the microwave beam. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 283 Echoes are frequently measured in decibels relative to the directly transmitted signal. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 284 Frequency may be stated in cycles per second. HART Highway Addressable Remote Transducer. An open communication protocol used to address field instruments. Hertz (Hz): unit of frequency, one cycle per second. 1 Gigahertz (GHz) is equal to 10 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 285 (pf) where the maximum velocity is 1.0, pf is a value that represents a reduction in propagation velocity as a result of the wave travelling through a pipe or medium. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 286 (see Sensor Mode (2.2.2.) for an illustration). shot one transmit pulse or measurement. speed of light the speed of electromagnetic waves (including microwave and light) in free space. Light speed is a constant 299, 792, 458 meters per second. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 287 Can be loop powered, analog, intrinsically safe 4 to 20 mA, or a digital (BUS) transmitter. waveguide antenna a hollow, metallic tube that transmits a microwave signal to the product target. SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 288: Index
205, 207 bypass pipe flanged horn, 201, 203 see stillpipe, 31 flat face flange, 234 raised face flange, 228, 228, 231 threaded horn with extension, 197, 199 threaded PVDF antenna, 225 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 289 245 Language, 165 setup, 136 LCD display flange contrast adjustment, 162 echo profile viewing, 65 bolting instructions, 35 flange markings fast mode, 162 flat face, 234 measurement mode, 53 raised face, 229, 232 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 290 56 handheld programmer access, 30 propogation factor housing construction, 24, 31 values, 137 nozzle design, 27 nozzle location, 28 on vessel with obstructions, 31 sunshield recommended, 31 multidrop mode, 270 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 291 PDM, 90 explanation, 240 settings TVT Shaper adjust parameters via PDM, 82 manual adjustment via PDM, 86 sidepipe via PDM, 84 see bypass pipe, 31 SIMATIC PDM functions and features, 73 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 292 164 vessel shape selection, 131 Wear powered hours, 92 poweron resets, 92 view via PDM, 92 wiring cables, 40 connecting HART, 42 hazardous areas, 43 write protect local access, 165 SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 293 Index SITRANS LR250 (mA/HART) Operating Instructions, 12/2015, A5E32220602-AD...
Page 294: For More Information
Find any font sizes for the text fields in the Panel "Paragraph styles"! Background coolgray 100 %, Siemens Sans OT, Bold, 13 PT, schwarz Absatzformat: 01 Weitere Info 13 pt Siemens Sans OT, Roman, 9 PT, schwarz Absatzformat: 01 Info Text 9 pt...

Siemens SITRANS LR250 Operating Instructions Manual

1 Introduction

2 Safety Information

3 Description

4 Installing/Mounting

5 Connecting

6 Commissioning

7 Remote Operation

8 Parameter Reference

9 Service and Maintenance

10 Diagnosing and Troubleshooting

11 Technical Data

12 Dimension Drawings

Appendix A: Technical Reference

Appendix B: HART Communications

Appendix C: Certificates and Support

13 List of Abbreviations

14 LCD Menu Structure

Quick Links

Troubleshooting

Related Manuals for Siemens SITRANS LR250

Summary of Contents for Siemens SITRANS LR250