Instruction Manual May 2008 sitrans LU01
Safety Guidelines: Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected equipment. These warning notices are accompanied by a clarification of the level of caution to be observed. Qualified Personnel: This device/system may only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install and operate this equipment in accordance with established safety practices and standards.
Table of Contents Introduction ....................................................................................................................................................1 SITRANS LU01 ........................................................................................................................................1 SITRANS LU01 Features ........................................................................................................................3 Programmable Features ..............
Operation .......................................................................................................................................................23 Display in RUN Mode ...........................................................................................................................23 Keypad .....................................................................................................................................................24 System Performance Evaluation .............
Echo Processing Displays (Scope Displays, P810) .............................................................86 Dolphin Plus Display ...................................................................................................................86 Distance Calculation ............................................................................................................................86 Sound Velocity ..................................................................................................
iv
Introduction Note: • • The SITRANS LU01 is to be used only in the manner outlined in this instruction manual. This product is intended for use in industrial areas. Operation of this equipment in a residential area may cause interference to several frequency based communications. The SITRANS LU01 is an ultrasonic long-range level monitoring system for liquids and solids.
Introduction mmmmm The distance calculation can be converted to space, material level, material volume, or remaining vessel capacity. The reading chosen (and operating data) for each vessel is displayed on the LCD (liquid crystal display). The relays and mA outputs may be used as preset (or programmed as desired) to activate alarms and/or operate remote monitoring equipment and/or process control equipment.
• SmartLinx provides protocol specific hardware and software for interface with popular industrial communication systems. SITRANS LU01 Features • Enclosure: • • • • Chemical resistant, light weight, dust tight, liquid tight, easy to work with. Backlit LCD: Large digits for Reading and programming value displays. Illuminated LCD insures readability under all lighting conditions. Includes custom Graphic Symbols for continuous indication of operating conditions.
Introduction mmmmm • Material: • Response: • Units: • Volume: • Failsafe: • Relays: • mA Outputs: Liquid or solid; automatically adjusts echo processing with one entry. Slow, medium, fast, surge, or immediate response to material level changes. Display Readings in m, cm, mm, ft, in, %, or any other units desired. 8 pre-programmed tank shape options. 2 universal tank shape programming methods Failsafe options for process control equipment activation.
Specifications Electronics Power 100/115/200/230 V AC ±15%, 50/60 Hz, 31 VA 18 to 30 V DC, 25 W • AC model: • DC model: Environmental indoor / outdoor 2000 m max –20 to 50 °C (–5 to 122 °F) suitable for outdoor (Type 4X / NEMA 4X / IP65 enclosure) II 4 Scan Points • 1 point per SITRANS LU01 max. • frequency independent Range • Level Measurement: 0.3 m (1 ft) to 60 m (200 ft) max. Accuracy • 0.25% of range or 6 mm (0.24"), whichever is greater Resolution • 0.1% of program range1 or 2 mm (0.
Outputs • relays: 4 alarm/control relays 1 form "C" SPDT contact per relay, rated 5 A at 250 V AC, non-inductive 1 output max. 0.1% resolution 0-20 or 4-20 mA, scalable 750 Ω, isolated, 30V rms • analog: Specifications mmmmm Communications (see Options) • • • • SmartLinx compatible RS-232 / 485 port Dolphin Plus compatible proprietary bipolar current loop Enclosure • Type 4X / NEMA 4X / IP65 1 • 285 mm W x 209 mm H x 92 mm D (11.2" W x 8.2" H x 3.6" D) • polycarbonate Weight • 2.
Transducer Compatible Models • STH and Echomax® series • Refer to the associated instruction manual. Options Temperature Sensor • TS-3 SmartLinx Modules • Windows®-compatible configuration software connected to the unit via infrared Comverter link Refer to associated product documentation. Cable Transducer • RG-62 A/U (or equivalent), 365 m (1,200 ft) max.
RS-232 Link • Belden 8770, 3 conductor/shielded, 18 AWG (0.75 mm2) or equivalent • maximum separation 15 m (50 ft) RS-485 Link • Belden 8770, 3 conductor/shielded, 18 AWG (0.75 mm2) or equivalent • maximum separation 1200 m (4000 ft) SmartLinx module • refer to the associated instruction manual. Specifications mmmmm Safety marking symbols In manual On Product Description (Label on product: yellow background.) Caution: refer to accompanying documents (manual) for details.
Installation Installation shall only be performed by qualified personnel, and in accordance with local governing regulations. The following procedure applies to all SITRANS LU01 level monitor installations. See Application Examples on page 89 for additional installation requirements. Also, refer to the instruction manuals of all other equipment connected to the SITRANS LU01 for additional installation instructions. SITRANS LU01 Location Recommended • • • • Exposure to direct sunlight.
Mounting Inspect all cartons and packaging for possible damage during shipment, before removing the SITRANS LU01 and associated equipment. 1. Loosen the 6 enclosure lid (captivated) screws and swing the lid open. 2. Remove the 4 Board B mounting screws (outer corners) and remove the circuit board assembly. 3. Drill required holes in the enclosure bottom to meet enclosure cable/conduit entry requirements. 4. Attach the enclosure to the selected mounting surface (use four predrilled screw holes). 5.
Interconnection Before interconnecting system components to the SITRANS LU01 terminals, verify all components have been installed in accordance with the associated product instruction manuals. Connect all associated equipment cable shields to the SITRANS LU01 shield connections. To avoid differential ground potentials, do not connect cable shields to ground (earth) elsewhere. Insulate or tape cable shields at all shield junctions to prevent ground loops.
DC Model optional scope board A connections SmartLinx module display EPROM U31 GND TP4 SCO PE TP5 SYN C TP6 TRIP S1 NORM BIPOLAR RS-232 2 3 RELAYS RELAYS SHOWN IN DE-ENERGIZED POSITION 5AMP 250 V SEE INSTRUCTION BOOK FOR COMPLETE RATING RS-232 RS-485 COM COM BIPOLAR CURRENT LOOP 1 SYNC 27 28 29 30 31 32 33 34 35 1 2 1 2 RX 24 25 26 4 2 T EMP SEN SO R SHLDSHLD SHLD 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 TEMP SEN SOR TX 9 TX 2 ! RX 8 7 1 B 6 A 5 SHLD SHLD SHLD 4 WHT
Optional SmartLinx Module The standard SITRANS LU01 unit may also be enhanced with Siemens Milltronics SmartLinx communication modules that provide an interface to popular industrial communication systems. To change or install SmartLinx module: LCD Card SmartLinx module dummy card board A With power off and SITRANS LU01 lid opened: Note: Refer to the SmartLinx module documentation for any required hardware settings prior to replacing the LCD card or closing the SITRANS LU01 lid. 4. 5.
System Diagram 1 SITRANS LU01 optional SmartLinx 1 1 Siemens Milltronics temperature sensor mA output relay output customer device customer alarm, pump or control device point to point communication Dolphin Plus, or customer device fieldbus communication industry control system such as PLC or DCS, SCADA, etc. Note: Maximum system capability. Not all components or their maximum quantity may be required.
Temperature Sensor WHT/SHLD WHT/SHLD BLK BLK WHT TS-3 #1 TS-3 #2 TEMP TEMP SENSOR SENSOR 9 10 11 12 13 14 Note: Use TS-3 temperature sensor only. Do not jumper the terminals if TS-3 is not used. #1 to TS-3 Relays All relays are certified for use in equipment where the short circuit capacity of the circuits in which they are connected is limited by fuses having ratings not exceeding the rating of the relays.
Communication Notes: • The communication protocol is automatically detected by the SITRANS LU01 and shown via LED on the motherboard. Ground shield at one end only. • Serial Installation mmmmm RS-232 RS-485 to customer device, RS-232 port 15 m (50ft) max to customer device, RS-485 port 1200 m (4,000 ft) max SmartLinx Refer to the appropriate SmartLinx manual for installation and wiring. Level System Synchronization Avoid mounting the SITRANS LU01 near another ultrasonic level monitor.
Power Note: Before making the power connection, ensure proper voltage selection. AC Supply Wiring L2/N L1 34 35 36 37 100/115/200/230 V 50 / 60 Hz Select voltage via switch. voltage switch shown in the ’OFF’ position. Select appropriate voltage. Notes: • • DC Supply Wiring SYNC 33 34 35 SY NC 33 34 36 35 36 37 24 V 37 24 V ! BOARD B Notes: DC terminals shall be supplied from a SELV source in accordance with IEC-1010-1 Annex H.
Programmer The hand programmer fits into the docking bay and is kept there with a magnet. Use the hand programmer to change individual parameters Communications Access Communications link is through the internal RJ-11 port.
Programming Operator programmable features are identified by a Point Number and Parameter Number. The Index refers to the Relay Number as identified by the Index Type indicators. Parameter Numbers have a preset Parameter Value for each Index Number. Program the SITRANS LU01 to obtain the desired RUN mode operation. Display In PROGRAM mode, the Index Type, Index Number, Parameter Number, and Parameter Value (as well as a variety of other programming information) may be viewed.
Keypad In PROGRAM mode, use the SITRANS LU01 programmer keys to perform the identified functions. 1 2 3 4 5 6 7 8 P P mA 9 0 numeric key values C function keys Description Key DISPLAY: shift access to Index, Parameter Number, or Parameter Value display. 0 - P Programming mmmmm P 9 NUMBERS: enter the numeric value into the accessed display. DECIMAL POINT: enter a decimal point (moves Profile and TVT Pointers left).
Program Mode Entry Upon initial power application, the SITRANS LU01 displays OFF. To enter PROGRAM mode 1. 2. Secure the enclosure lid using the 6 captivated screws. Place the infrared programmer in the enclosure lid recess. and then press DISPLAY . 3. Press PROGRAM When PROGRAM mode is entered after RUN mode operation, all operating data is retained in memory.
Parameter Reset Features On initial power up, all parameters are at default values. In many cases, when a Parameter Value is altered, associated Parameter Values are automatically altered accordingly. When a Parameter Number is accessed, if the preset Parameter Value displayed is acceptable, no entry is required. To return an operator adjusted Parameter Value to the preset value, with the appropriate Index and Parameter Number displayed press CLEAR and ENTER .
Operation In RUN mode, the SITRANS LU01 detects material levels and provides control functions. The SITRANS LU01 automatically starts in RUN mode when power is applied. Display in RUN Mode In the RUN mode, the following values and indicators are observed. Many indicators are specific to certain operating conditions and so not all indicators are not displayed at any given time.
Keypad In RUN mode, the following programmer keys perform the identified functions. 1 2 3 4 5 6 7 8 P P mA 9 0 auxiliary reading keys C function keys Key Description mA selects the Auxiliary Reading "mA output value". 6 selects the Auxiliary Reading "vessel atmosphere temperature". 7 selects the Auxiliary Reading "rate of material level change". 8 selects the Auxiliary Reading "failsafe time left" (in percent).
System Performance Evaluation For initial RUN mode entry (or after any programming alteration), do not use the SITRANS LU01 to operate process control equipment until satisfactory system programming and performance is verified. 1. 2. Press to enter the RUN mode. ---- may be displayed briefly while the SITRANS LU01 takes measurements and calculates the Reading. If an alarm symbol is displayed, the corresponding relay is de-energized.
C. If the SITRANS LU01 provides accurate and repeatable measurements, however alternate Reading units, failsafe action, relay, or mA output operation is desired, proceed to Application Parameters on page 32. If all operating conditions cannot be observed during the System Performance Evaluation, refer to Enhancement Parameters Reading Measurement (P920). Perform a Reading Measurement simulation to verify programming.
Parameter Reference Helpful Hints Please note the following: • • • • • • Default values are always indicated with an asterix (*) Global values are common for all inputs and outputs on the unit Indexed parameters can apply to more than one relay Primary index relates to a relay Secondary index allows for multiple values on an indexed point View only parameters are for display only and cannot be altered. These parameters are marked as view only in the Parameter values. In PROGRAM mode 1.
Parameters Parameter Reset Features On initial power up, all parameters are at original values. In many cases, when a Parameter Value is altered, associated Parameter Values are automatically altered accordingly. To return an operator adjusted Parameter Value to the preset value, with the appropriate Index and Parameter Number displayed, press values, refer to Master Reset (P999) on page 84. , .
Quick Start (P001 to P007) Sets the type of measurement required for the application. Values 0 Out-of-service 1 Level – how full the vessel is (Point 1 and/or 2 only) 2 Space – how empty the vessel is (Point 1 and/or 2 only) 3 Distance – distance from transducer to material (Point 1 and/ or 2 only) * P002 Material Specifies material type. If the material presents a flat surface perpendicular to the transducer beam, select liquid.
Parameters P004 Transducer Specifies the Siemens Milltronics transducer connected to the unit. Values Related 0 1 2 3 4 5 100 101 102 103 104 105 106 107 108 109 110 112 • • • • • * No transducer attached ST-25 ST-50 ST-100 LR-21 LR-13 ST-H XCT-8 XPS-10 XCT-12 XPS-15 XPS-30 XPS-40 XLT-30 XLT-60 XLS-30 XLS-60 XRS-5 P842 Short Shot Frequency P843 Long Shot Frequency P844 Short Shot Width P845 Long Shot Width P852 Short Shot Range P005 Units Specifies measurement units used for dimensional values.
P006 Empty Enter distance in units (P005) from the face of the transducer to the process empty point. Range: 0.000 to 9999 Preset: 5.000 m (or equivalent depending on units) Alters • Altered By • P007 Span P005 Units Related • • • P800 Near Blanking P921 Material Measurement P927 Distance Measurement Setting this value also sets Span (P007) unless Span was already set to another value. For distance operation (P001=3), Span is preset to Empty. P007 Span Sets the range level to be measured.
Parameters Application Parameters Volume (P050 to P055) Use these parameters to enable the SITRANS LU01 to show readings based on vessel volume (rather than level). P050 Tank Shape Enter the Tank Shape value matching the monitored vessel or wet well. When Operation is level (P001 = 1), liquid (material) volume is calculated. Alternatively, when Operation is space (P001 = 2), remaining vessel capacity is calculated. In RUN mode, readings are displayed in percent of maximum volume.
8 Sphere 9 Universal Linear 10 Universal Curved Values Alters • • • P001 Operation P051 Maximum Volume P920 Reading Measurement P051 Maximum Volume For Readings in volumetric units (rather than percent), enter the vessel volume between Empty (P006) and Span (P007). Values Range: 0.000 to 9999 Preset: 100.
Parameters P052 Tank Dimension A Dimension A as used in P050 Tank Shape. Range: 0.0 to 9999 Values Preset: 0.000 • Related P050 Tank Shape Enter one of the following: • height of the tank bottom if P050 = 2, 3, 4, or 5 or • length of one end section of the tank if P050 = 7, in Units (P005) P053 Tank Dimension L Dimension L as used in P050 Tank Shape. Range: 0.0 to 9999 Values Preset: 0.
Entering a Level Breakpoint 2. 3. 4. Press to display the index symbol. For each index enter a volume. Ensure that each volume corresponds to the same index for P055. 5. Press . For more on Volume Characterization, go to page 87. P055 Volume Breakpoints and Characterization (Universal Volume Calculation) Each segment defined by the level breakpoints (P055) requires a volume so that the SITRANS LU01 can make the level-to-volume calculations. Primary Index Breakpoint Values Range: 0.
Display and Reading (P060 to P062) Parameters These parameters are used to: • • • Change the number of decimal places displayed Convert the Reading to alternate units Reference measurements to other than Empty (P006) or Span (P007) P060 Decimal Position Defines the maximum number of decimal places used on the LCD.
P062 Offset Reading Preset: 0.000 • Related P920 Reading Measurement The operation of the device is not affected by the Offset Reading. This value is used for display purposes only. All control measurements are still referenced to Empty. vessel vessel display offset (P062) sea level Failsafe (P070 to P072) As preset, in the event of a measurement or technical difficulty, the SITRANS LU01 holds the Reading, Bar Graph, mA outputs, and relays at their last known values.
Parameters If the timer expires (before a valid measurement is made), the SITRANS LU01 advances to the Failsafe Material Level (P071) as restricted by Failsafe Advance (P072). When a valid measurement is made after the timer expires, the SITRANS LU01 advances to the new material level (if changed), as restricted by Failsafe Advance (P072) and the timer resets. If the timer expires due to a measurement difficulty, LOE flashes in the Reading display.
Relay reaction Alarm relays have P129 = OFF and so react to the Failsafe Material Level. Control relays have P129 = dE and so de-energize the relay when the unit enters Failsafe mode regardless of the Failsafe Material Level. P072 Failsafe Level Advance Sets the speed the SITRANS LU01 advances to and returns from the Failsafe Material Level. 1 Values Related * Restricted Advances to/from Failsafe Material Level as set by P003, P700 and P701.
Parameters Setpoints are set up in P112 and P113. Each relay is triggered by one or more setpoints. The setpoints can be based on absolute level (P112, P113) or rate of change (P702, P703). Each control function specifies which setpoints are required. P100 Preset Applications This parameter presets relays to operate as Standard Alarms. The Relay Allocation (relay/point number association) and Standard Alarm (P101 to P104) parameters are also preset.
P101 High Alarm Relay Primary Index Range: -999 to 9999 Values Preset 80.00% of Span or equivalent units P102 Low Alarm Enter the Low Alarm material level for the index displayed. . Primary Index Values Relay Range: -999 to 9999 Preset 20.00% of Span or equivalent units P103 High High Alarm Enter the High High Alarm material level for the index displayed, (Relay Set Up 2 or 4 only). Primary Index Values Relay Range: -999 to 9999 Preset 90.
Parameters Custom Relays (P111 to P113) P111 Relay Control Function Sets the control algorithm used to trip the relay. When accessed, the Parameter Type display changes to the Relay symbol and the Index display changes to the Relay Number (corresponding to the SITRANS LU01 terminals). Primary Index Relay Values See chart on next page Altered by • P100 Preset Applications Use zero 0 (preset) to disable control of the indexed relay.
To reset the Relay Function to use Standard Alarms, enter the desired Relay Set Up (P100). Type Off Level In Bounds Out of Bounds General Rate of Change Temperature Loss of Echo (LOE) Cable Fault Fixed Duty Assist Pump 1.
Parameters Setpoints Action ON OFF Status Alarm Level H or HH Level L or LL In bounds ! Out of bounds ! 85% 15% 80% 80% 70% 30% 50% 50% Rate of change +10% +5% -10% Temperature 60 55 -30 Pump -5% 80% 20% -25 20% 80% When Relay On On de-energizes Level rises to 85% Off Off energizes Level falls to 70% On On de-energizes Level falls to 15% Off Off energizes Level rises to 30% On On de-energizes Level falls to 78% Off Off energizes Level rises to 82% On On de-energize
P112 Relay ON Setpoint Relay Primary Index Range: -999 to 9999 Values Preset: ---- Altered by • P007 Span Related • • • P100 Preset Applications P111 Relay Control Function P113 Relay OFF Setpoint For most applications, the relay is tripped at this point. For IN-BOUNDS and OUT-OFBOUNDS alarms, it is the high point in the specified range. This parameter is set according to Span (P007) even when another reading, such as volume, is shown on the LCD.
Parameters For IN-BOUNDS and OUT-OF-BOUNDS Relay Functions (P111 = 2 and 3 respectively), a dead band prevents relay chatter due to material level fluctuations at both the upper and lower setpoints. Actual ON or OFF setpoint Enter the dead band in either percent of span or units of measure (P005). The deadband value is applied both above and below the upper and lower bound setpoints as shown in the figure.
mA Output (P200 to P219) Determines the mA output range. Primary Index Values Related mA output 0 off 1 0 to 20 mA 2 * 20 mA = high level (unless P001 = 2 or 3, then 20 mA = low) 4 to 20 mA 3 20 to 0 mA 4 20 to 4 mA • P911 mA Output Value 20 mA = low level (unless P001 = 2 or 3, then 20 mA = high) If either 1 or 2 is selected, the mA output is directly proportional to the mA Function. If either 3 or 4 is selected, then the output is inversely proportional.
Parameters Independent mA Setpoints (P210 and P211) Use these features to reference the minimum and/or maximum mA output to any point in the measurement range. P201—mA Function Settings Action Level, Space, or Distance Enter the material level in Units (P005) or percent of Span (P007) as referenced to Empty (P006). Volume Enter the volume in Max Volume (P051) units or as a percent of Max Volume. Volume Rate Enter the volume rate in volume/min.
Sets the maximum mA output value (in mA) to be produced. Primary Index Values Related mA output Range: 0.000 to 22.00 Preset: 20.2 mA • P200 mA Output Range / P212 mA Output Min LImit mA Output Trim (P214 to P215) This does not affect the P203 value shown, and is used when recalibration of an external device is impractical. P214 4 mA Output Trim Calibrates the 4 mA output. Primary Index Values Related mA output Range: -1.00 to 1.000 Preset: 0.
Parameters mA Output Failsafe (P219) P219 mA Output Failsafe Use for failsafe operation, independent of the Failsafe Material Level (P071). mA output Primary Index Range: 0.000 to 22.00 OFF Values * HOLd LO produce the Empty mA output immediately HI • Related mA output responds to Failsafe Material Level (P071). last known value is held until normal operation resumes produce the Span mA output immediately P201 mA Output Function Selecting an independent mA Failsafe option: 1.
P302 Temperature, Sensor Maximum Press CLEAR Range: - 50 to 150°C (view only) Preset: - 50°C keys to reset the log after a short circuit on the transducer wiring. Profile Records (P330 to P337) WARNING: These parameters are for authorized service personnel or technicians familiar with Siemens Milltronics echo processing techniques. These features can record up to ten Echo profiles, initiated manually (P330), or automatically (P331 et al) for viewing at a later time using Dolphin Plus or an oscilloscope.
Parameters To manually record a profile Press TRANSDUCER to fire the transducer and record the echo profile into the internal scope buffer for display. For differential or average operation (P001 = 4 or 5), access Scope Displays (P810) parameter to select the transducer number. To save a manual record Press ENTER to copy the echo profile record in the scope buffer and save it in the selected address in the record library. The parameter value field displays the new record information.
P334 Auto Record ON Setpoint Range: -999 to 9999 Related • • • P335 Auto Record OFF Setpoint P336 Auto Record Filling / Emptying P337 Auto Record LOE Time P335 Auto Record OFF Setpoint Enter the critical level which, in conjunction with Auto Record ON Setpoint, defines the boundaries for Auto Profile Records to be saved.
Parameters Installation Records (P340 to P342) P340 Date of Manufacture View the date of manufacture of this SITRANS LU01 unit. Values Format: YY:MM:DD (view only) Related • • P341 RUN Time P342 Start Ups P341 RUN Time View the number of days this SITRANS LU01 has been in operation. Values Range: 0.000 to 9999 (view only) Related • • P340 Date of Manufacture P342 Start Ups The RUN Time value is updated once a day, and cannot be reset.
Before using this feature, verify the following parameters are correct: Empty (P006) Temperature (P664) Offset Reading (P062) Offset Calibration Begin with a steady level. 1. Press TRANSDUCER to display the calculated reading. 2. Repeat Step One at least five times to verify repeatability. 3. Measure the actual reading (use tape measure). 4. Enter the actual value. The deviation between the entered Empty (P006) value and the calibrated Empty value is stored in Offset Correction (P652).
Parameters P652 Offset Correction The value altered when an Offset Calibration is performed. Values Range: -999 to 9999 Related • P650 Offset Calibration Alternatively, if the amount of Offset Correction required is known, enter the amount to be added to the Reading before display. P653 Velocity The value adjusted based on the Sound Velocity at 20 °C (P654) vs. Temperature (P664) characteristics of air. Values Range: 50.01 to 2001 m/s (164.
Temperature Compensation (P660 to P664) Source of the temperature reading used to adjust the speed of sound. 1 Values * AUTO 2 Temp Fixed 3 Ultrasonic/Temperature Transducer 4 TS-3 Temperature Sensor 5 Average (TS-3 and transducer) Alters • P664 Temperature Related • • • • P651 Sound Velocity P653 Velocity P654 Velocity at 20°C P661 Temp Fixed The SITRANS LU01 uses the TS-3 temperature sensor assigned to the transducer.
Parameters If Temp Source (P660) is set to any value other than Fixed Temp, the value displayed is the temperature measured. If Temp Source is set to Fixed Temp, the P661 value is displayed. Rate (P700 to P707) These parameters determine how material level changes are reported. P700 Max Fill Rate Adjusts the SITRANS LU01 response to increases in the actual material level (or advance to a higher Failsafe Material Level, P071). Values Range: 0.
P702 Filling Indicator The fill rate required to activate the LCD Filling indicator ( ). Altered by • P003 Maximum Process Speed Related • • • P005 Units P007 Span P700 Max Fill Rate This value (in Units (P005) or % of Span (P007) per minute) is automatically set to 1/10 of the Max Fill Rate (P700). P703 Emptying Indicator The empty rate required to activate the LCD Emptying indicator ( ).
Parameters P705 Rate Update Time The time period (in seconds) over which the material level rate of change is averaged before Rate Value update. Values Range: 0.000 to 9999 Related • P707 Rate Value P706 Rate Update Distance The material level change (in metres) to initiate a Rate Value update. Values Range: 0.000 to 9999 Related • P707 Rate Value P707 Rate Value The rate of material level change (in Units (P005) or % of Span (P007) per minute).
P711 Echo Lock Use this feature to select the measurement verification process. Maximum verification 2 3 Related • • • • • * Material agitator Total lock P700 Max Fill Rate P701 Max Empty Rate P712 Echo Lock Sampling P713 Echo Lock Window P820 Algorithm If a material agitator (mixer) is used in the vessel monitored, set Echo Lock for maximum verification or material agitator to avoid agitator blade detection.
Example: Parameters Setting • • P711 = 2, material agitator P712 = 5:2 Result • a new reading will not be validated unless five consecutive measurements higher or two consecutive measurements lower than the current reading occur Resetting P711 returns P712 to the respective preset values • P713 Echo Lock Window Adjusts the size of the Echo Lock Window. Range: 0.000 to 9999 Values Preset: 0.
This feature may only be used to adjust the delay before the next point is scanned. Enter the amount of delay in seconds. This value is automatically altered when Maximum Process Speed (P003) is altered. The delay, in seconds, between transducer shots. Range: 0.1 to 4.0 Values Preset: 0.5 Use this if transient acoustic noise within the vessel is causing measurement difficulties due to echoes from one shot being received on the next.
Parameters P731 Auxiliary Reading Key Enter the Parameter Number whose value is to be displayed in the Auxiliary Reading field Values Range: 000 to 999 Preset: Material Reading, P921 P is pressed in the RUN mode. See the Keypad section on page 24 for RUN mode auxiliary readings. P732 Display Delay Adjusts the Point Number display scroll speed. Values Related Range: 0.5 to 10 Preset: 1.5 seconds • P001 Operation Use this feature to adjust the delay before the display advances to the next Point Number.
Peripheral Communication Support Parameters (P740 to P749) Use this feature to select the SITRANS LU01 to communication message format. 0 1 Values * 2 Off if comm port is not used, OFF increases LU01 processing speed. normal messages (preset) messages transmitted as a continuous string of characters formatted messages commas inserted between message fields for easier message distinction Note: Refer to Technical Reference / Communication Support on page 94 if Peripheral Communication is required.
Parameters Communications (P772) The SITRANS LU01 communication ports are configured by a series of parameters that are indexed by port. Communication parameters are indexed to these communication ports, unless otherwise noted: Port Description 1 RS-232 port (RJ-11 modular telephone) 2 RS 485 port on terminal block P772 Baud Rate The communication rate with the master device. Primary Index Communications Port 4.8 Values * 4800 baud 9.6 9600 baud 19.2 19,200 baud 115.
P791 Bus Error 0 Related • No error Error code; refer to SmartLinx module documentation for explanation of error code. P790 Hardware Error P792 Bus Error Count A count that increments by 1 each time a bus error (P791) is reported.. Range: 0* to 9999 Values Error count; provide this number to your Siemens Milltronics representative for troubleshooting. Related • P790 Hardware Error P794 SmartLinx Module Type This parameter is used to identify the module type when SmartLinx is used.
Parameters Use this feature if the surface is reported to be near the transducer face but is in fact much further away. Extend this value when changing transducer location, mounting, or aiming. Please note that changing the Near Blanking cannot correct measurement problems. Ensure that Span (P007) < Empty (P006) minus Near Blanking (P800). P801 Range Extension Used if incorrect level is reporated (when material level is lower than Empty, P006). Values Related Range: 0.
Determines which echoes are evaluated by software. Values Related Range: x.y [x = short (0 to 99), y = long (0 to 99)] Preset: 10:5 • P805 Echo Confidence The short and long shot Confidence Thresholds are preset to 10 and 5 respectively. When Echo Confidence (P805) exceeds the Confidence Threshold, the echo is evaluated by Sonic Intelligence. Values are entered as two numbers separated by a decimal point. The first number is the short shot confidence and the second number is the long shot confidence.
Parameters P806 Echo Strength Displays the strength (in dB above 1 μV rms) of the echo which was selected as the measurement echo. Format: 0 to 99 (view only) Values P807 Noise Displays the average and peak ambient noise (in dB above 1 μV rms) being processed. Format: x:y (view only) x = average (-99 to 99) Values y = peak (-99 to 99) The noise level is a combination of transient acoustic noise and electrical noise (induced into the transducer cable or receiving circuitry).
P810 Scope Displays Display: P, C, n, u, _ Values Preset: _ _ _ _ (display is off) • Related P832 TVT Shaper Adjust Use this feature to monitor the effects of Echo Processing changes. Connect an oscilloscope to Display Board TP4, TP5, and TP6. Sweep = 10 us / div. to 1 ms / div. (x 100 for real time) Amplitude = 1 V / div. Trigger = external Note: Use of an analog oscilloscope is preferred over a digital oscilloscope. Any combination of the following Scope Displays is available.
Parameters P816 Echo Time Raw The time (in ms) from the transmit pulse to the processed echo. Values Range: 0.0 to 9999 (view only) Profile Pointer (P817 to P825) When one of these parameters is accessed, the scope display changes: The Echo Lock Window becomes the Profile Pointer. The Profile Pointer may be moved to any point on the Echo Profile to gain specific information about the profile according to the selected parameter.
P819 Profile Pointer Amplitude Range: 00 to 99 (view only) Related • • • • • • • P817 Profile Pointer Time P818 Profile Pointer Distance P820 Algorithm P821 Spike Filter P822 Narrow Echo Filter P823 Reform Echo P825 Echo Marker Trigger P820 Algorithm Chooses the algorithm to generate the measured value from the profile.
Parameters P821 Spike Filter Dampens spikes in the echo profile to reduce false readings. 0 Values 1 • • • • • • • Related Off * On P817 Profile Pointer Time P818 Profile Pointer Distance P819 Profile Pointer Amplitude P820 Algorithm P822 Narrow Echo Filter P823 Reform Echo P825 Echo Marker Trigger Use P821 if interference spikes are on the long shot Echo Profile display. P822 Narrow Echo Filter Filters out echoes of a specific width. Enter width of false echo in msec.
The point on the primary echo on which the measured value is based. Values Related Range: 5 to 95% Preset: 90% when P002=1 (Liquid) or 50% when P002=2 (Solid) • • • • • • • P817 Profile Pointer Time P818 Profile Pointer Distance P819 Profile Pointer Amplitude P820 Algorithm P821 Spike Filter P822 Narrow Echo Filter P823 Reform Echo Use this feature if the reported material level fluctuates slightly, due to a variable rise in the leading edge of the true echo on the Echo Profile.
Parameters Select the TVT type which gives the highest confidence (P805) under all level conditions. Use this parameter with caution, and do not use TVT Slopes with the bF or bLF Algorithm (P820). P831 TVT Shaper Turns the TVT Shaper ON or OFF. Values Related 0 * 1 • Off On P832 TVT Shaper Adjust Turn the TVT Shaper ON before using P832 and afterwards. Turn the TVT Shaper ON and OFF while monitoring the effect to pick up the true echo.
6. Press ARROWS to change the bias value of the breakpoint, –50 to 50. 7. Press ENTER 8. Press TRANSDUCER . Use this feature to adjust the TVT Curve height to ignore false echoes (or pick up true echoes) near the start of the Echo Profile. Values Related Range: -30 to 225 Preset: 50 • • P800 Near Blanking P834 TVT Start Duration Enter the minimum TVT Curve start point (in dB above 1 μV rms).
Parameters Advanced Shot Adjustment (P840 to P852) Note: These parameters are for Siemens Milltronics service personnel only. P840 Short Shot Number The number of short shots to be fired (and results averaged) per transmit pulse.
P843 Long Shot Frequency Adjust the long shot transmit pulse frequency (in kHz). Altered By • P004 Transducer Related • • • • P841 Long Shot Number P842 Short Shot Frequency P844 Short Shot Width P845 Long Shot Width This feature is automatically altered when Transducer (P004) is altered. P844 Short Shot Width Adjust the width (in ms) of the short shot transmit pulse. Values Range: 0.000 to 5.
Parameters P851 Short Shot Floor Enter the minimum echo strength (in dB above 1 μV rms) derived from a short shot to be considered for evaluation. Range: 30 to 100 Values Preset: 50 • • • • • Related P840 Short Shot Number P842 Short Shot Frequency P844 Short Shot Width P850 Short Shot Bias P852 Short Shot Range P852 Short Shot Range Enter the maximum distance in Units (P005) to be measured using short shot echoes. Values Range: 0.
P902 Watchdog to put the CPU into an infinite loop to test the watchdog timer. P903 Display Press ENTER to activate the display test. All LCD segments and symbols are temporarily displayed. P904 Keypad Press ENTER 1 2 , then press each keypad key in the following sequence: 3 4 5 6 7 mA 8 9 0 P P As each key is pressed, the associated keypad number is displayed. On successful test completion, PASS is displayed.
Parameters P907 Programmer Interface Press ENTER to activate the programmer interface (two way infrared communications) test. On successful test completion, PASS is displayed. Otherwise, FAIL is displayed. P910 Relay Access this parameter to display the current state of the specified relay. Values 0 = de-energized 1 = energized Press ENTER to alter the relay state (energized / de-energized) or enter the value corresponding to the specific relay state desired.
Measurement (P920 to P927) been verified, disable all associated process control equipment before accessing the following parameters. To take an ultrasonic measurement, access one of the following parameters, and press (repeat five times to overcome Echo Lock, P711). Alternatively, press ENTER to simulate a rising and falling material level.
Parameters P924 Volume Measurement The calculated vessel capacity in Max Volume (P051) or % of Max Volume. Press ENTER as required to display in Max. Volume units. P927 Distance Percent The distance between the surface and the transducer face. Use P923 unless the distance information is required in percent (press ENTER ). Master Reset (P999) This feature resets all parameters to original values. Values Range: 0.
Technical Reference Transmit Pulse The SITRANS LU01 transmit pulse consists of one or more electrical shot pulses, which are supplied to the scanning relay. The scanning relay is activated as required, to supply the transmit pulse to the Transducer(s) connected to the SITRANS LU01 terminals. Echo Processing Echo processing consists of echo enhancement, true echo selection, and selected echo verification.
Echo Processing Displays (Scope Displays, P810) span + range extension (P007) (P801) TVT Curve display echo lock window display Technical Reference mmmmm echo progile display echo marker display near blanking (P800) Dolphin Plus Display Cursor Echo Marker TVT Curve Echo Profile Distance Calculation To calculate the transducer to material level (object) distance, the transmission medium (atmosphere) sound velocity (P653) is multiplied by the acoustic transmission to reception time period.
Variable air temperature is automatically compensated when a Siemens Milltronics ultrasonic/temperature transducer is used. If the transducer(s) are exposed to direct sunlight, use a sun shield or a separate TS-3 temperature sensor. Also, if the temperature varies between the transducer face and the object monitored, a TS-3 temperature sensor, mounted near the material surface (solids) or submerged (liquids), should be used in combination with the ultrasonic/temperature transducer.
This volume calculation creates a piece-wise linear approximation of the level/volume curve. This option provides best results if the curve has sharp angles joining relatively linear sections. Enter a Level Breakpoint at each point where the level/volume curve bends sharply (2 minimum). For combination curves (mostly linear but include 1 or more arcs), ensure numerous breakpoints are entered along the arc, for best volume calculation accuracy.
The Process Speed setting automatically adjusts various parameters affecting the SITRANS LU01 response to material level changes as in the table that follows. Parameter Values Dependent on Measurement Response (P003) Value # Name (Units) 1(slow) 2(medium) 3(fast) 4(surge) (5imm.) P070 Failsafe Timer (min) 100 10 1 0.1 0 0.1 1 10 100 1000 Max Empty Rate (m/min) 0.1 1 10 100 1000 P702 Filling Indicator (m/min) 0.01 0.1 1 10 100 P703 Emptying Indicator (m/min) 0.01 0.
Example 1 - Level Measurement Material Level This is the most common application of the SITRANS LU01 level monitor. For this example we'll assume the following: Technical Reference mmmmm • • • • • • • • one 30 m high cement silo is to be monitored. the maximum vessel filling rate is 0.08 m per minute. alarm indicators are required when the cement level exceeds 25 m or falls below 10 m. filling equipment is to be automatically deactivated at 27 m.
Parameter Settings for Point # 1 Number Description Instructions P001 Operation Enter "1" for level. P002 Material Enter "2" for solid. P003 Measurement Response Enter "1" for slow (0.1 m/min). P004 Transducer Enter "107" for XLT-30. P005 Units No entry required, (preset for metres). P006 Empty P007 Span No entry required, (preset to 29.01 metres). P070 Failsafe Timer Enter "2" for failsafe activation after 2 minutes without a valid echo.
When the dust settles (and the echo is regained) the reported level advances toward the actual level. When the reported level reaches 25.55 m (5% of Span less than the high high alarm trip point), the high high alarm goes off, restarting the infeed and filling the vessel to 27.00 m. Material Volume To perform a volume conversion for the preceding example, we'll assume: Technical Reference mmmmm • • the vessel is cylindrically shaped with a flat bottom. the vessel volume for Empty to 29.
Parameter Settings for Point # 1 Number Description Instructions Operation Enter "2" for space. P002 Material No entry required (preset for liquid). P003 Measurement Response Enter "4" for surge (100 m/min, Failsafe Timer = 0.1 minutes). P004 Transducer Enter "101" for XCT-8. P005 Units Enter "4" for feet. P006 Empty Enter "4.5" for 4.50 ft (3 feet diameter plus 1.5 ft in standpipe). P007 Span Enter "3" for 3 ft (vessel diameter).
Remaining Vessel Capacity To perform a volume conversion for the preceding example, complete the following programming. Volume Parameter Settings Technical Reference mmmmm Number Description Instructions P050 Tank Shape Enter "7"* for horizontal cylinder with parabolic ends. P051 Max Volume Enter "117" for 117 cubic feet (Use vessel fabricators value). P052 Tank Dimension A Enter "1.5" for 1.5 ft (the horizontal length of one parabolic end).
26 through 32. The mode of communication is established by the configuration of the connection made at the SITRANS LU01, either RS-232, RS-485 or bipolar current loop. The SITRANS LU01 uses simplex convention communication protocol. Data messages are continuously transmitted at regular intervals (no poll is required) at 4800 baud. All data is transmitted in structured messages of ASCII characters consisting of 8 data bits, no parity, and 1 stop bit.
Status B 1 character, $0 to $F (convert to binary, e.g. scan point is in high alarm) MSB LSB # # # # Technical Reference mmmmm 1 = low low alarm 1 = low alarm 1 = high alarm 1 = high high alarm Status C 1 character, $0 to $F (convert to binary, e.g. scan point is not in rate or band alarm) MSB LSB # # # # 1 = rate alarm 2 1 = rate alarm 1 1 = band alarm 1 1 = band alarm 2 Field Name Definition Temp 2 characters, $32 to $FA (convert to decimal and subtract 100, e.g.
MT-03 Point Not Scanned start of message message type end of message Definition STX ($02) Message Type 2 characters, 03 (indicates the Point Number is not in service) Point # 3 characters, 001 to 003 (e.g.
Maintenance The SITRANS LU01 should require no maintenance or cleaning, though good housekeeping practices in and around the area of the enclosure are recommended. Wipe out the area of the enclosure lid docking bay recess with a clean dry cloth (if necessary) before installing the programmer. Transducer inspection, to verify the effectiveness of the self cleaning design, is recommended.
Troubleshooting Guide Symptom Cause Display blank, Transmit Neon not flashing, trans- No power ducer not pulsing Action Check Power supply, wiring, and voltage switch. No response to programmer. Obstructed infrared interface, or defective programmer Clean enclosure “docking bay” and programmer magnet slot. Displays “Short” and “tb:(#)”. Short circuited transducer cable or defective transducer. Repair or replace as necessary. Displays “Open” and “tb:(#)”.
Measurement Difficulties If a measurement difficulty occurs for greater than the Failsafe Timer (P070) setting, LOE is flashed alternately with the Reading display. Under certain conditions, a measurement difficulty may cause the SITRANS LU01 to lock on to a false echo and report a fixed or wrong reading. Flashing LOE Display If LOE is displayed, ensure that the: 1. 2. 3. Material (object) surface monitored is within the maximum range of the transducer. Transducer (P004) value matches the transducer used.
If a discernible echo is observed (representative of the material/object surface), reduce the Confidence Threshold (P804) while taking new measurements (in the RUN or PROGRAM mode). Sometimes, material simply cannot be detected during vessel filling. In these cases, set up failsafe operation so the SITRANS LU01 anticipates the rate of material level increase and adjusts the reported Reading accordingly. This operation is reliable, as long as when the dust (or foam) settles a valid echo can be received.
If the preceding remedies have not produced satisfactory results, the false echo has to be ignored. Extend Near Blanking (P800) to a distance (from the transducer face) to just beyond the distance represented by the Reading. This also increases the nearest distance the material level/object may come within the transducer face and still be detected. If increasing Near Blanking is unacceptable (the transducer cannot be mounted higher) see Auxiliary Transducer (P725).
Increase the Confidence Threshold (small amounts at a time) while observing the results. If performance is not improved return the Confidence Threshold to the preset value. Connect an oscilloscope to the SITRANS LU01, (see Enhancement Parameters Scope Displays, P810). While monitoring the Echo Marker, select the Algorithm (P820) best suited to the material/conditions.
Programming Charts Parameter # Name Altered Values for Indices/Point Numbers 1 2 3 Security P000 Lock (G) Quickstart P001 Operation P002 Material P003 Max. Process Speed P004 Transducer P005 Units (G) P006 Empty P007 Span Volume P050 Tank Shape P051 Max Volume P052 Tank Dimension A P053 Tank Dimension L P054 Level Breakpoints record values on a seperate sheet. P055 Volume Breakpoints record values on a seperate sheet.
Parameter # Name Altered Values for Indices/Point Numbers 1 2 3 P116 Bound Alarm Deadband P129 Relay Failsafe mA Outputs P200 mA Range P201 mA Function P202 mA Allocation P203 mA Value / Transducer (V) P210 0/4 mA Setpoint P211 20 mA Setpoint P212 mA Min Limit P213 mA Max limit P214 4 mA Trim P215 20 mA Trim P219 mA Failsafe Data Logging P300 Temp, Transducer max (V) P302 Temperature, Sensor max (V) P330 Profile Record P331 Auto Record Enable (G) P332 Auto Record Transducer (G) P333 Auto Record Interva
Parameter # Name Altered Values for Indices/Point Numbers 1 2 3 P661 Temp fixed P664 Temperature (V) Rate P700 Max Fill Rate P701 Max Empty Rate P702 Filling Indicator P703 Emptying Indicator P704 Rate Filler P705 Rate Update Time P706 Rate Update Distance P707 Rate Value (V) Measurement Verification P710 Fuzz Filter P711 Echo lock P712 Reserved P713 Echo lock Window Scanning P726 Level System Sync (G) P728 Shot Delay (G) P729 Scan Time Display P730 Auxiliary Reading (G) P731 Auxiliary Reading Key (G)
Parameter # Name Altered Values for Indices/Point Numbers 1 2 3 P802 Submergence Transducer P803 Shot/Pulse Mode P804 Confidence Threshold P805 Echo Confidence (V) P806 Echo Strength (V) P807 Noise (V) Advanced Echo Processing P810 Scope Displays P816 Echo Time P817 Profile Pointer Time P818 Profile Pointer Distance P819 Profile Pointer Amplitude P820 Algorithm P821 Spike Filter P822 Narrow Echo Filter P823 Reform Echo P824 (reserved) P825 Echo Marker Trigger P830 TVT Type P831 TVT Shaper P832 TVT Shap
www.siemens.com/processautomation Siemens Milltronics Process Instruments Inc. 1954Technology Drive, P.O. Box 4225 Peterborough, ON, Canada K9J 7B1 Tel: (705) 745-2431 Fax: (705) 741-0466 Email: techpubs.smpi@siemens.com Siemens Milltronics Process Instruments Inc. 2008 Subject to change without prior notice *7ml19985BE02* Printed in Canada Rev. 2.
