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SITRANS LR 400
Instruction Manual
September 2001

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   Summary of Contents for Siemens SITRANS LR 400

  • Page 1

    SITRANS LR 400 Instruction Manual September 2001...

  • Page 2

    Contact Technical Publications at the following address: Technical Publications Siemens Milltronics Process Instruments Inc. 1954 Technology Drive, P.O. Box 4225 Peterborough, Ontario, Canada, K9J 7B1 Email: techpubs@siemens-milltronics.com For the library of SMPI instruction manuals, visit: www.siemens-milltronics.com © Siemens Milltronics Process Instruments Inc. 2001...

  • Page 3: Table Of Contents

    Symptoms, causes and their remedy ....................63 Fault messages ............................64 Maintenance and repairs ....................65 Changing the device fuse ........................65 Disconnecting the electronics part from the mechanical part ..........66 Cleaning the antenna ...........................66 Certificates .........................67 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT...

  • Page 4

    Glossary ..........................68 Appendix I ..........................69 Alphabetical Parameter List .......................69 Appendix II .........................73 Programming Chart ..........................73 Appendix III ........................77 Ambient/Operating Temperature Specification ................77 Appendix IV ........................78 Process Pressure/Temperature de-Rating ..................78 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 5: General Information

    The contents of the manual shall not become part of or modify any prior or existing agreement, commitment or relationship. The Sales Contract contains the entire obligation of Siemens. The warranty contained in the contract between the parties is the sole warranty of Siemens Milltronics.

  • Page 6

    Installation shall only be performed by qualified personnel and in accordance with local governing regulations • The SITRANS LR 400 is to be used only in the manner outlined in this manual or protection provided by equipment may be impaired. Qualified personnel Qualified personnel are familiar with the installation, commissioning, and operation of this equipment.

  • Page 7: Sitrans Lr 400

    SITRANS LR 400 The SITRANS LR 400 Radar Level Instrument is designed for level measuring of liquids and solids in storage vessels. SITRANS LR 400 operates reliably with its high microwave frequency even with poorly reflecting measuring media. The narrow antenna beam results in a sharp radiation cone, therefore SITRANS LR 400 is quite insensitive to vessel interferences.

  • Page 8: Specifications

    Specifications Note: Siemens Milltronics makes every attempt to ensure the accuracy of these specifications, but reserves the right to change them at any time. Please ensure these are the most recent specifications. Contact your representative, or check our website at www. milltronics.com for the most up-to-date information.

  • Page 9

    31.8 kg (69.9 lbs) JIS B2238 80 mm 11.9 kg (26.1 lbs) 100 mm 13.2 kg (28.9 lbs) 150 mm 19.2 kg (42.1 lbs) Use only approved, suitable sized hubs for watertight applications. 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 5...

  • Page 10

    230 to 600 Ω, 230 to 500 Ω when connecting a coupling module Line two-wire shielded: ≤ 3 km multi-wire shielded: ≤ 1.5 km Protocol HART, Version 5.1 *Note: Refer to Process/Ambient de-rating curves in Appendix III. Page 6 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 11

    Triple reflector on the main axis of the antenna main lobe Ambient temperature 25 ± 5°C (77 ± 9°F) Ambient pressure 1050 mbar ± 10 % Absolute Measuring Error Distance from flange [m] 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 7...

  • Page 12: Dimensions

    Flange acc. to DIN 2527 / ANSI B 16.5 / JIS B 2238 bolt hole pattern Customer to provide adequate bolting and gasket to retain vessel pressure and provide sufficient seating. Page 8 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 13

    20.0 mm 150 mm 19.0 mm 100 mm 10 K 210 mm 22.0 mm 175 mm 19.0 mm 150 mm 10 k 280 mm 24.0 mm 240 mm 23.0 mm 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 9...

  • Page 14

    1.00" 8.5" 6.62" 0.88" 3" 300 # 8.25" 1. 1 2" 5.0" 6.62 0.88" 4" 300 # 10.00" 1.25" 6.19" 7.88" 0.88" 6" 300 # 12.51" 1.44" 8.5" 10.62" 0.88" Page 10 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 15: Installation

    Installation Note: • The SITRANS LR 400 is rated for Type 4X/NEMA 4X, Type 6/NEMA 6, IP 67. Follow all installation and operating instructions to meet the requirements of this type of protection. Use only approved, suitable sized hubs for watertight applications.

  • Page 16

    Above flange size DN 150/6 inch, the antenna may end in the nozzle unless the radiation cone (the extension of the antenna’s angle) touches the nozzle wall. Page 12 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 17: Electrical Connection

    4-20 mA, Profibus PA, DC input circuits, 14 - 20 AWG, shielded copper wire • AC input circuit, min 14 AWG copper wire • Recommended torque on terminal clamping screws, 0.5 - 0.6 Nm 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 13...

  • Page 18

    II 2G EEx dem [ib] IIC T6, only the cover of the connection box may be unscrewed for test purposes. The cover on the power supply terminals may not be removed! Page 14 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 19: Start Up

    "Main Menu" is displayed in the first line of the LCD. Then program the unit beginning with the Auto-Setup parameters. Auto-Setup After switching on the SITRANS LR 400, and after a successful self test, set the Auto- Setup parameters to make the system operational.: (see page 25). •...

  • Page 20: Operation

    Measuring principle The SITRANS LR 400 operates according to the FMCW (Frequency Modulated Continuous Wave) method. Its antenna sends microwaves to the surface of the measuring medium, the frequency of which is modulated continuously (see “Determining the Differential Frequency on page 17).

  • Page 21

    Every reflection at a surface generates a different frequency. The reception signal therefore consists of a frequency mix from which the disturbance frequencies must be filtered which are caused by fixed targets such as struts inside the vessel. 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 17...

  • Page 22

    The electrical connection of the PC/Laptops and the HART-Communicator to the 4-20-mA signal cable is shown below. Connection, HART Schematic Diagram Connection, Profibus Schematic Diagram Page 18 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 23: Operating The Sitrans Lr 400

    The background illumination of the LCD switches on automatically as soon as you use a control element. It goes out about three minutes after last use of a control element. 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 19...

  • Page 24: Changing A Parameter Value

    It does not save a changed setting! For an example of assigning a value from a selection list, see “Operating examples” on page 23. Page 20 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 25

    The control element now functions as a “Cancel” key. The device close the parameter input without saving the changed value. If you exceed the representable value range when entering a digit, SITRANS LR 400 automatically places the numeric value at the next highest position. For example, if you see the numeric value “0.9”...

  • Page 26: Disabling And Enabling Programming

    Enter the customer code as described in Parameter 5.2 on page 52. Note: If the customer code is “0” in Parameter 5.2, programming of parameters is always enabled. Page 22 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 27: Operating Examples

    Next to the operating path, the control elements which you need to press are indicated and the operating steps are numbered. 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 23...

  • Page 28

    And end the input with the control element 4.2.2 M e a s u r.c o n d i t (“Enter” function) f i l l i n g s p e e d Page 24 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 29: Parameters (hart)

    The following parameters are absolutely essential for proper operation of the device. They apply to all applications and are required to make the system operational. 1. Auto-Setup Language Local (F = English) Language of the local user interface English Value Deustch 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 25...

  • Page 30

    Set the LRV as the level above the bottom of the vessel (see “Functional Dimensions” on page 25) in the units system selected with Function 4.1.1. It corresponds to an output current of 4 mA. Page 26 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 31: Additional Parameters

    2.2: Level (F = m) Current level of measured medium (set unit using Length Unit in Auto-Setup). 2.3: Volume (F = m Volume of measured medium (set unit using Parameter 4.1.2: Volume Unit). 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 27...

  • Page 32

    This parameter outputs a calculated percentage which estimates the wear of the device due to aging. 3.1.1.5: Hours > 85°C Total time for which the maximum permissible temperature was exceeded, in hours Page 28 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 33: Troubleshooting

    3.1.x: Software Diagnostic messages of the software and/or 3.1.x: Application Diagnostic messages to the application and/or 3.1.x: Parameters Display of the false parameters and/or 3.1.x: Service For service purposes only 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 29...

  • Page 34

    When this parameter is accessed and a value is entered, the device sets the defined current value which can be validated. The parameter is ended after pressing so that the analog output again gives the measured value. Page 30 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 35

    S/N Ratio provides a relative measure of the strength of reflection of the measuring medium in dB. Its display can be evaluated as follows: • x > 20: very good • 20 > x > 10: good • x < 10: satisfactory 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 31...

  • Page 36

    < 20: no plausible measured value 3.4.5: SensorTemp Sensor temperature 4. Device Data 4.1: Units 4.1.1: Length Unit = Parameter 1.2 4.1.2: Volume unit (F = m bush Value bbl (liq) ImpGal Page 32 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 37

    By selecting the setting “yes” or “no” , you specify whether the device is mounted on a stilling pipe. If you have selected “yes” , the Parameter 4.2.1.3.2 is enabled in which you can specify the internal diameter of the stilling pipe. 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 33...

  • Page 38

    1 cm in height, you should select the “wavy” setting. The ”turbulent” setting is recommended for waves > 10 cm. The default setting is the “wavy” surface structure. Page 34 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 39

    This assigns a greater probability to measuring targets which move at this speed. 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 35...

  • Page 40

    4.2.3: Sensor Parameter Here you can view and change the sensor parameters which you have selected according to parameter 4.2.2. Note: The factory settings for the user vessels are not editable. Page 36 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT 7ML19985FH01...

  • Page 41

    The typical filling speed can be set in Parameter 4.2.2.5. If, however, the measured value still does not follow the level height, switching off the parameter “echo motion” could possibly improve the result. 7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 37...

  • Page 42

    A window follows the measured value which it is forced to track. The window size is calculated from the set filling speed. The parameter “window tracking” would be switched off for applications where the SITRANS LR 400 is unable to keep up to level changes.

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