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Siemens sitrans PROBE LU Instruction Manual
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Siemens sitrans PROBE LU Instruction Manual

2-wire loop powered ultrasonic transmitter for level, volume and flow monitoring of liquids
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Instruction Manual June 2004
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  • Page 1 Instruction Manual June 2004 sitrans PROBE LU...
  • Page 2 Contact SMPI 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 our Web site: www.siemens-milltronics.com © Siemens Milltronics Process Instruments Inc. 2004...

  • Page 3: Table Of Contents

    SITRANS Probe LU (Ultrasonic) ..................4 Applications ..........................4 Level, volume or flow ......................... 4 SITRANS Probe LU System Implementation ................5 Programming ..........................5 SITRANS Probe LU Approvals and Certificates ..............5 Specifications ........................6 SITRANS Probe LU ..........................6 Power............................. 6 Performance..........................6 Interface ............................7 Programmer (infrared keypad) ....................
  • Page 4 Alphabetical Parameter List ......................65 Appendix B ........................68 Programming Chart ..........................68 Appendix C ........................71 HART Communications for the SITRANS Probe LU ..............71 HART Device Description (DD) ....................71 SIMATIC Process Device Manager (PDM): ...............71 HART Communicator 275: .......................72 Supported HART Commands:....................77 Burst mode ..........................
  • Page 5 EU Equivalency .......................... 87 Loop Voltage versus Loop Resistance .................88 IS Safety Barrier Selection .....................88 How to select a passive barrier for SITRANS Probe LU ..........88 PLC Input Modules........................89 Passive Shunt Diode Barriers ....................89 Active barriers (repeating barriers)..................89 Product Nameplate ..........................90...

  • Page 7: Safety Notes

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

  • Page 8: Application Examples

    Application Examples The application examples used in this manual illustrate typical installations using SITRANS Probe LU. Because there is often a range of ways to approach an application, other configurations may also apply. In all examples, substitute your own application details. If the examples do not apply to your application, check the applicable parameter reference for the available options.
  • Page 9 20 mA above which no PV is Upper Sensor Limit anticipated 100% is most commonly set to 20 mA, and 0% to 4 mA: however, the settings can be reversed. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 3...

  • Page 10: Sitrans Probe Lu (Ultrasonic)

    Siemens Milltronics could void the user’s authority to operate the equipment. Note: SITRANS Probe LU is to be used only in the manner outlined in this manual, otherwise protection provided by the equipment may be impaired. SITRANS Probe LU is a loop-powered continuous level monitor, using advanced ultrasonic techniques.

  • Page 11: Sitrans Probe Lu System Implementation

    By using the universal linear function of parameter P051, and entering values for Head and Flow in the breakpoint parameters P054 and 055, you can use SITRANS Probe LU to convert head levels into flow rates. SITRANS Probe LU System Implementation SITRANS Probe LU supports the HART communications protocol and SIMATIC PDM software.

  • Page 12: 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. Environmental • Please check the ambient and operating temperatures under on page Process Approvals (verify against device nameplate) 8, and on page 8;...

  • Page 13: Interface

    • display (local) multi-segment alphanumeric liquid crystal with Bar graph (representing level) Programmer (infrared keypad) Siemens Milltronics Infrared IS (Intrinsically Safe) Hand Programmer: for all locations, including hazardous. • approval ATEX II 1 G, EEx ia IIC T4, SIRA 01ATEX2147 −20 to 40°...

  • Page 14: Environmental

    , for the specific configuration you are about to use or install. • The use of approved watertight conduit hubs/glands is required for Type 4X / NEMA 4X, Type 6 / NEMA 6, IP67 (outdoor application). Page 8 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 15: Installation

    • This product is susceptible to electrostatic shock. Follow proper grounding procedures. • Ideally, mount SITRANS Probe LU so that the face of the transducer is at least 300 mm (1 ft) above the highest anticipated level. Mounting Location Recommendations: •...

  • Page 16: Mounting Instructions

    Note: • Ideally, mount SITRANS Probe LU so that the face of the transducer is at least 300 mm (1 ft) above the highest anticipated level. SITRANS Probe LU is available in three thread types: 2" NPT, 2" BSP , or PF2/G.

  • Page 17: Sitrans Probe Lu Dimensions

    51. 1 mm (2.01") 54.0 mm (2. 1 3") Flange Adaptor (optional) SITRANS Probe LU can be fitted with the optional 3" (80 mm) flange adaptor for mating to 3" ANSI, DIN 65PN10 and JIS 10K3B flanges. SITRANS Probe LU "A"...

  • Page 18: Wiring

    Strip the cable jacket for approximately 70 mm (2.75") from the end of the cable, and thread the wires through the gland Safety Extra Low Voltage If cable is routed through conduit, use only approved suitable-size hubs for waterproof applications. Page 12 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 19 Tighten the gland to form a good seal. Close the cover and tighten screws: please do not overtighten screws. Recommended torque is 1.1 to 1.7 N-m (10 to 15 in-lb). 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 13...

  • Page 20: Operating The Sitrans Probe Lu

    SITRANS Probe LU has two modes of operation: RUN and PROGRAM. RUN Mode SITRANS Probe LU automatically starts in RUN mode when power is applied, and detects the material level. The primary reading displays the material level (in meters) referenced from Empty (process empty level).

  • Page 21: Program Mode

    Activate PROGRAM mode at any time, to change parameter values and set operating conditions. • For local programming, use the Siemens Milltronics hand programmer. • For programming from a distance, use either a PC running SIMATIC PDM, or a HART handheld communicator.

  • Page 22: Low Temperature Effects On Run/Program Modes

    RUN mode will operate normally, with the following exceptions: • hand programmer operation is disabled • the LCD displays only limited information: the bar graph and the reliable/ unreliable echo indicator PROGRAM mode: • hand programmer operation is disabled Page 16 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 23: Security

    Note: For detailed instructions on using the hand programmer, see the next page. For direct access to SITRANS Probe LU, point the hand programmer at the display from a maximum distance of 600 mm (2 ft), and press the keys.

  • Page 24: Accessing A Parameter

    Press ENTER to set the value. Parameter Reset to Factory Default Scroll to the parameter or enter its address. Press CLEAR then ENTER . The value returns to the default setting. Page 18 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 25: Master Reset (P999)

    Enable Auto False-Echo Suppression P837. Return to RUN mode. The language options are English, German, French, or Spanish. The parameter title appears in the language selected, for the first 10 parameters. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 19...

  • Page 26: Setup Instructions

    To measure how much space remains in the vessel, select Space: • Space returns a reading for the distance between current level and process full level (Span) To measure the distance from the transducer face to the current level, select Distance. Page 20 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 27 29.) Select type of measurement units required (P005: Units) meters centimeters Values millimeters feet inches Blanking Distance Blanking distance is 0.25 m (10"). See on page 82 for more details. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 21...
  • Page 28 This provides a 0.05 m (2") safety margin, as the minimum detectable distance is 0.25 m (10"). Blanking Distance Blanking distance is 0.25 m (10"). See on page 82 for more details. Page 22 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 29 Minimize false reflections (P838: Auto False-Echo Suppression Distance) If SITRANS Probe LU displays an incorrect full level, or if the reading fluctuates between a false high level and a correct level, you can use the TVT (Time Varying Threshold) shaper parameters P838 and P837 together to prevent false-echo detection.
  • Page 30 Press PROGRAM to return to RUN mode. False echoes can be caused by obstructions within the beam path. For more detail, see TVT adjustment parameters, page 57, and TVT curves, page 82. Page 24 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 31: Additional Settings

    TVT curve adjustments - Auto False Echo Suppression (P830 to P839) • Software diagnostic tests (P900 and P901) • Adjust measurements (P911 to P924) Parameter Reference For a full list of available parameters, see , starting on page 26. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 25...

  • Page 32: Parameter Reference

    SITRANS Probe LU is configured through its parameters, and the application determines the parameter values which are entered into the instrument. Please check your value entries carefully before operating SITRANS Probe LU, to ensure optimum performance. Helpful Hints •...

  • Page 33: To Access A Secondary Index And Change A Value

    • This lock only applies to the hand programmer: it does not lock access through communications. • A remote master can change configuration if P799 is set to allow this. Secures SITRANS Probe LU from parameter changes via the hand programmer. Unlocked Value (P069) Unlocked: programming permitted...

  • Page 34: Quick Start (P001 To P010)

    (P001 = 1) transducer 4 mA face 20 mA 4 mA Span Span Distance Span 100% Space P007 P006 Level Empty Empty 100% 100% Empty 20 mA 20 mA 4 mA Page 28 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 35 (distance measurement). In this case Span is set to the same value as Empty (P006). • Changing P001 may reset Output Function (P201). P002 Material to be monitored Note: For use only by Siemens Milltronics service personnel. P003 Measurement Response 1* Liquid or flat surface Values...
  • Page 36 See note on next page for more details. Enter the distance between Empty (process empty level) and Span (process full level), in units set in P005. Span can be set at any distance above Empty level. Page 30 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 37: Volume (Or Flow) P050 To P055

    (See the table on page 20 for the titles displayed.) Volume (or Flow) P050 to P055 Set SITRANS Probe LU to calculate readings based on reservoir volume instead of level: see P050 Vessel (or Channel) Shape on page 32 for details on displaying flowrate.
  • Page 38 P050 Vessel (or Channel) Shape Defines the vessel (or open channel) shape (see chart on next page) and allows SITRANS Probe LU to calculate volume or flow instead of level. The default setting for P050 is 0 (volume calculation not required).
  • Page 39 P051, P052 spherical bottom P051, P052 angled bottom P051, P052 flat end cylinder P051 parabolic end cylinder P051, P052, P053 P051 sphere universal linear P051, P054, P055 level/volume/flow breakpoints 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 33...
  • Page 40 In P055 you assign a corresponding volume value to each breakpoint. Primary Index P054 Secondary Index Breakpoint number Range 0.0000 to 99999 in units (P005) Values Default 0.000 Related Parameters P055 Volume or Flow Breakpoints Page 34 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 41 Volume breakpoint Breakpoints Level value number (P054) (P055) 1200 3200 Note: Illustrated values for P054 and P055 are for example purposes only. For more details on secondary index operation, see page 27. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 35...
  • Page 42 0.4 m 113.5 0.3 m 55.3 0.2 m 20.07 head Note: Illustrated values for P054 and P055 are for example purposes only. For more details on secondary index operation, see page 27. Page 36 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 43 If you are measuring head and flow, follow the Flow Breakpoints instructions on page 38. Volume breakpoints Each segment defined by the level breakpoints (P054) requires a corresponding volume, so that SITRANS Probe LU can make the level-to-volume calculations. Primary Index P055...
  • Page 44 Flow breakpoints Each segment defined by the head breakpoints (P054) requires a corresponding flow value, so that SITRANS Probe LU can make the head-to-flow calculations. Primary Index P055 Secondary Index Breakpoint number Range 0.0000 to 99999 in units Values Default 0.0000...

  • Page 45: Lock (P069)

    • Default setting for P000 is unlocked. • After a new value has been stored at P069, that value will be recalled after a master reset (P999). • Consult your Siemens Milltronics representative, if you have forgotten the unlocked value. Failsafe (P070 to P073)

  • Page 46: Ma Output (P201 To P215)

    For HART, 4 mA and 20 mA represent the upper and lower range limits for the primary variable. Page 40 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 47 Enter the reading that is to correspond to a 4 mA output. Use percent or units, depending on the setting for P051. P050 Vessel (or Channel) Shape To display flowrate instead of volume, see page 32. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 41...
  • Page 48 Prevents the mA output from rising above this maximum level for a measurement value. This does not restrict the Failsafe or manual settings. Range 3.800 to 20.500 (mA) Values Default 20.500 (mA) Page 42 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 49: Installation Records (P300 To P346)

    P214 4 mA Output Trim Note: This parameter is for use only by Siemens Milltronics service personnel. Calibrates the 4 mA output. P215 20 mA Output Trim Note: This parameter is for use only by Siemens Milltronics service personnel. Calibrates the 20 mA output.
  • Page 50 Key in the index number required, and press ENTER The temperature value associated with the new secondary index appears. Press DISPLAY twice and use the ARROW keys or enter the value for the next desired parameter. Page 44 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 51: Range Calibration (P650 To P654)

    Do Offset calibration at any steady level, unless a Sound Velocity calibration is also done. If both calibrations are done, then do Offset at a known high level, and Sound Velocity at a known low level. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 45...
  • Page 52 The acoustic beam atmosphere temperature is unknown. • The reading accuracy is acceptable only at higher material levels. For best results, calibrate with the level at a known value close to empty. Page 46 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 53 P654 Sound Velocity at 20 • P660/P661 Temperature setting The units used depend on the setting for P005: • m/s if P005 = 1, 2, or 3 • ft/s if P005 = 4 or 5. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 47...

  • Page 54: Temperature Compensation (P660 To P664)

    Use this function when you want to manually override the temperature sensor with a fixed temperature value. • Set P660 to 2. • Enter the fixed temperature value you want to use in place of the sensor temperature. Page 48 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 55: Rate (P700 And P701)

    These parameters determine how material level changes are reported. P700 Maximum Fill Rate Allows you to further adjust the SITRANS Probe LU response to increases in the actual material level (or an advance to a higher Failsafe Material Level, P071). P700 is automatically updated whenever Measurement Response (P003) is altered.

  • Page 56: Measurement Verification (P709 To P713)

    Use this feature to select the measurement verification process. Maximum Verification Values Material Agitator Total Lock P700 Maximum Fill Rate P701 Maximum Empty Rate Related P712 Echo Lock Sampling P713 Echo Lock Window P820 Algorithm Page 50 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 57 The window then returns to its normal width. When Echo Lock is Off, SITRANS Probe LU responds immediately to a new measurement, as restricted by the Maximum Fill / Empty Rate (P700 / P701). However, measurement reliability is affected.

  • Page 58: P752 Hart Address

    Sets the device address or poll ID on a HART network. Any address other than 0 will cause the output current to be a fixed value, and the current will not indicate the reading. Values Range 0 to 16 Units are those set in P005. Page 52 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 59: Communications (P799)

    Restricted access – read only except for P799 which is read/write Notes: • P799 controls the access if you are using a HART master. • P000 controls the lock access if you are using the Siemens Milltronics hand programmer. Echo Processing (P800 to P825) The following parameters are for authorized Siemens Milltronics Service personnel or technicians familiar with Siemens Milltronics echo processing techniques.
  • Page 60 P801 Range Extension Note: SITRANS Probe LU has an absolute maximum range of 7.2 m (23.6 ft). or 14.4 m (47.24 ft), depending on the model. Allows the material level to drop below Empty (process empty level), without generating an LOE state.
  • Page 61 Displays the absolute strength (in dB above 1 µV rms) of the echo selected as the measurement echo. Values (view only) –20 to 99 Display Press the measurement key to get a new reading that will update echo strength. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 55...

  • Page 62: Algorithm (P820)

    Echo Lock Window to be set so that it intersects the Echo Profile at the sharpest rising portion of the Echo Profile. Range 5 to 90% Values Default 50 (%) Page 56 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 63: Tvt (Time Varying Threshold) Adjustment Parameters (P830 To P839)

    TVT (Time Varying Threshold) Adjustment Parameters (P830 to P839) First SITRANS Probe LU learns the echo profile. Then the learned profile, or part of the learned profile, is used to screen out false echoes. The following parameters are for authorized Siemens Milltronics Service personnel or technicians familiar with Siemens Milltronics echo processing techniques.
  • Page 64 • If the vessel contains an agitator, the agitator should be running. If SITRANS Probe LU displays a full level, or if the reading fluctuates between a false high level and a correct level, set P837 to elevate the TVT in this region and to de-sensitize the receiver from any ‘base noise’...
  • Page 65 6. Press 2 and then press ENTER . P837 will revert to 1 (use Learned TVT) automatically after a few seconds. Display after Auto False Echo Suppression TVT curve material (learned) level false echo Distance (meters) 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 59...

  • Page 66: Diagnostic Tests (P900 To P924)

    P839 TVT Hover Level Defines (in percent) how high the TVT curve is placed above the profile, relative to the largest echo. When SITRANS Probe LU is located in the center of the vessel, lower this parameter to prevent multiple echo detections.

  • Page 67: Measurement

    P201 to the previous setting after the test! P912 Temperature Displays the temperature in C (as monitored by the connected transducer). This value is not affected by Temperature Source (P660). Values (view only) Range –40 to 85 ( 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 61...
  • Page 68 Values (view only) Range –99999 to 99999 P922 Space Measurement Displays the distance between the monitored surface and Span / process full level (P007). Values (view only) Range –99999 to 99999 Page 62 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 69 The learned TVT curve is not lost. Use this feature after upgrading software: 1. Select P999. 2. Press CLEAR then ENTER to Clear All and initiate reset. 3. Reset complete. (Note: Reset takes several seconds to complete.) 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 63...
  • Page 70 Notes Page 64 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 71: Alphabetical Parameter List

    Echo Marker Trigger Echo Strength Empty (process empty level) Failsafe Level Fail-Safe Material Level Fail-Safe Timer Internal Temperature Language Level (or Head) Breakpoints Lock mA Output Function Maximum mA Limit Minimum mA Limit 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 65...
  • Page 72 Reading Measurement RUN Time Serial Number Software Revision Number Sound Velocity at 20 Sound Velocity Calibration Space Measurement Span (process full level) Temperature Temperature Temperature fixed Temperature source Temperature, transducer maximum Page 66 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 73 TVT Hover Level TVT Shaper TVT Shaper Adjust TVT Type Units Unlocked value Velocity Vessel Dimension ‘ A ’ Vessel Dimension ‘L’ Vessel Shape Volume (or Flow) Breakpoints Volume (or Flow) Measurement 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 67...

  • Page 74: Programming Chart

    P210 4 mA Setpoint (low output) P211 20 mA Setpoint (high output) P212 Minimum mA limit P213 Maximum mA limit P214 4 mA Output Trim P215 20 mA Output Trim P300 Temperature, transducer maximum Page 68 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 75 P807 Noise P820 Algorithm P825 Echo marker trigger P830 TVT Type P831 TVT Shaper P832 TVT Shaper Adjust P837 Auto False-Echo Suppression P838 Auto False-Echo Suppression Distance P839 TVT Hover Level 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 69...
  • Page 76 P900 Software Revision Number P901 Memory Test P911 mA Output Value P912 Temperature P920 Reading Measurement P921 Material Measurement P922 Space Measurement P923 Distance Measurement P924 Volume (or Flow) Measurement P999 Master Reset Page 70 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 77: Hart Communications For The Sitrans Probe Lu

    Descriptor for the unit in question. HART DD’s are controlled by the HART Communication Foundation. Please contact your local representative concerning the availability of the HART DD for SITRANS Probe LU. Older versions of the library will have to be updated in order to use all the features in the SITRANS Probe LU.

  • Page 78: Hart Communicator 275

    5. Last config 6. Manufacturer data 1. Serial No 2. Revision HART information 1. Manufacturer 2. Model 3. HART Dev ID 4. Universal rev 5. Fld dev rev 6. Software rev 7. Hardware rev Page 72 SITRANS Probe LU – PRELIMINARY 7ML19985HT01...
  • Page 79 1. mA Function cylinder parabol end 2. FS Timer sphere 3. FS default measure universal linear 4. FS Advance 5. FS level val Bk LevVol Gr Bk LevVol 11_11 7ML19985HT01 SITRANS Probe LU – PRELIMINARY Page 73...
  • Page 80 2. TVT breakpoint 32 3. TVT breakpoint 33 4. TVT breakpoint 34 5. TVT breakpoint 35 6. TVT breakpoint 36 7. TVT breakpoint 37 8. TVT breakpoint 38 9. TVT breakpoint 39 TVT breakpoint 40 Page 74 SITRANS Probe LU – PRELIMINARY 7ML19985HT01...
  • Page 81 6. Low Setpoint 7. High Setpoint select Local Display 1. Write protect 2. Lock 3. Write Protect 4. unlock value HART Output 1. Poll addr 2. Num req preams 3. Num resp preams 7ML19985HT01 SITRANS Probe LU – PRELIMINARY Page 75...
  • Page 82 45. Marker 46. TVT Type 47. P831-Mode 48. Auto TVT 49. Range 50. Hover 51. Revision 52. mA Output 53. Sensor Temp 54. Reading 55. Material 56. Space 57. Distance 58. Volume Page 76 SITRANS Probe LU – PRELIMINARY 7ML19985HT01...

  • Page 83: Supported Hart Commands

    Supported HART Commands: The SITRANS Probe LU conforms to HART rev. 5 and supports the following: Universal Commands 0, 1, 2, 6, 7, 8, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22 Common Practice Commands 33, 34, 35, 36, 37, 38, 40,41, 42, 44, 45, 46, 48, 50, 51, 53, 54, 59, 110...

  • Page 84: Appendix D: Troubleshooting

    The device can be programmed using the hand programmer Verify that the wiring connections are correct. Specifically: If you try to set a SITRANS Probe LU parameter via remote communications, but the parameter remains unchanged: • Some parameters can only be changed when the device is not scanning. Try putting the device in program mode using the operating mode function.

  • Page 85: General Fault Codes

    The device was unable to get a measurement for the Check the application and echo failsafe timer period. profile, to determine optimum configuration for the application, to ensure the device can obtain a measurement. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 79...
  • Page 86 The error will not occur on SITRANS Probe LU, but is included to complete the list and match industry standards. EEPROM can become corrupted due to operating the device outside its operating range (power and temperature) or other damage.

  • Page 87: Operation Troubleshooting

    Please note the following: • The user is responsible for all changes and repairs made to the device. • All new components must be provided by Siemens Milltronics Process Instruments Inc. • Restrict repair to faulty components only. •...

  • Page 88: Appendix E: Technical References

    The transducer emits a series of ultrasonic pulses: each pulse is reflected as an echo from the material and sensed by the transducer. The echo is processed by SITRANS Probe LU, using Siemens Milltronics’ proven Sonic Intelligence techniques. Filtering is applied to help discriminate between the true echo from the material, and false echoes from acoustic and electrical noises and agitator blades in motion.

  • Page 89: Auto False-Echo Suppression

    (or when P837 = 0) default TVT true P839 echo Hover Level false echo Distance (meters) Display after Auto False Echo Suppression TVT curve material (learned) level false echo Distance (meters) 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 83...

  • Page 90: Open Channel Monitoring (Ocm)

    Open Channel Monitoring (OCM) OCM converts a level reading (head) into a flow value using a linear algorithm. SITRANS Probe LU can convert a head level measurement into a flow rate, using an eleven breakpoint head-versus-flow characteristic curve. This chart is usually available from the manufacturer of the v-notch weir, Parshall flume, or other open channel device.

  • Page 91: Failsafe

    Failsafe mode without delay. Chemical compatibility The plastic materials used in the construction of SITRANS Probe LU (ETFE, PBT, and PVDF) are resistant to attack from most chemicals. For exposure to specific environments, check with chemical compatibility charts before installing and operating SITRANS Probe LU in your application.

  • Page 92: Appendix F: Hazardous Area Installations

    Wiring Details Intrinsically Safe Model (reference drawing 23650516: see page 91) (reference drawing 23650517: see page 92) Under the entity evaluation concept, SITRANS Probe LU has the following characteristics: = 30 V DC (max.) (input voltage) U (input current) I = 120 mA DC (max.)

  • Page 93: Fm/Csa

    [ EEx ia ] IIC, its output voltage (U ) not exceeding 30 V and its output current (I ) limited by load resistance (R ); such that I , does not exceed 120 mA. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 87...

  • Page 94: Loop Voltage Versus Loop Resistance

    How to select a passive barrier for SITRANS Probe LU Make sure that the barrier safety description is suitable for the SITRANS Probe LU Intrinsically Safe (IS) input parameters. Determine the maximum end-to-end resistance of the barrier (Re-e) from the data sheet.

  • Page 95: Plc Input Modules

    Notes: • The following list is not complete: there are many safety barriers on the market, which will work with the SITRANS Probe LU. • The barriers listed below have all been tested and are functionally compatible with the SITRANS Probe LU.

  • Page 96: Product Nameplate

    Class II, Div 1, Group E, F, G SIRA 03ATEX2142X C i = 3.6 nF, Class III L i = 0 HART WARNING: Possible static hazard, do not rub or clean on site. Page 90 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 97: Intrinsically Safe Connection Drawing (Fm)

    Intrinsically safe connection drawing (FM) 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 91...

  • Page 98: Intrinsically Safe Connection Drawing (Csa)

    Intrinsically safe connection drawing (CSA) Page 92 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 99: Instructions Specific To Hazardous Area Installations

    (Reference European ATEX Directive 94/9/EC, Annex II, 1/0/6) The following instructions apply to the SITRANS Probe LU covered by certificate number SIRA 03ATEX2142X: For use and assembly, refer to the main instructions. The equipment is certified for use as Category 1G equipment.
  • Page 100 12. Equipment Marking The equipment marking contains at least the information on the product nameplate, shown on page 67. Page 94 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 101: Glossary

    (decibel): a unit used to measure the amplitude of signals. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 95...
  • Page 102 Near Blanking: see Blanking nozzle: a length of pipe mounted onto a vessel that supports the flange. parameters: in programming, variables that are given constant values for specific purposes or processes. Page 96 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 103 TVT (time varying threshold): a time-varying curve that determines the threshold level above which echoes are determined to be valid. ultrasonic: having a frequency above the human ear’s audibility limit: about 20,000 hertz. 7ML19985HT01 SITRANS Probe LU – INSTRUCTION MANUAL Page 97...
  • Page 104 Notes Page 98 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...

  • Page 105: Index

    (RUN) avoiding 51 display echo confidence 15 agitators 51 algorithm hand programmer select for true echo 56 access to SITRANS Probe LU 17 Approvals 8 detailed instructions 18 ARROW keys HART Communications primary/secondary index function 27 detailed information 71...
  • Page 106 26 accessing 27 changing value 27 security lock value 39 unlock value 39 setup instructions quick start programming 20 SIMATIC Process Device Manager 71 SIMATIC Process Device Manager (PDM) 71 Page 100 SITRANS Probe LU – INSTRUCTION MANUAL 7ML19985HT01...
  • Page 108 Siemens Milltronics Process Instruments Inc. Siemens Milltronics Process Instruments Inc. 2004 1954Technology Drive, P .O. Box 4225 Subject to change without prior notice Peterborough, ON, Canada K9J 7B1 Rev. 1.0 Tel: (705) 745-2431 Fax: (705) 741-0466 *7ml19985HT01* Email: techpubs@siemens-milltronics.com...

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