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Page 88

AiRanger SPL

PL-573

Technical Refer

e

nce

Echo Processing Displays (Scope Displays, P810)

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. The result (round trip distance) is divided by 2.

Distance = Sound Velocity x Time

2

The Reading Value displayed is the result of performing any additional modification to
the calculated distance (Operation P001, Units P005, Volume Conversion, P050 to
P054, Reading Value, P060 to P063.)

Sound Velocity

The sound velocity of the transmission medium is affected by the type, temperature,
and vapour pressure of the gas or vapour present. As preset, the SPL assumes the
vessel atmosphere is air at 20°C (68°F). Unless altered, the sound velocity used for
the distance calculation is 344.1 m/s (1129 ft/s).

Variable air temperature is automatically compensated when a Milltronics
ultrasonic/temperature transducer is used. If the transducer is exposed to direct
sunlight a TS-3 temperature sensor should be used.

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.
Then when Temp Source, (P660) is set for "both", the transducer and TS-3
temperature measurements are averaged.

Atmosphere composition other than air can pose a challenge for ultrasonic level
measurement. However, excellent results may be obtained if the atmosphere is

homogeneous

(well mixed), at a fixed temperature, and consistent vapour pressure,

by performing a Sound Velocity Calibration (P651).

TVT

curve

display

near blanking

(P800)

echo lock
window
display

echo
marker
display

echo profile

display

span + range extension

(P007)

(P801)

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Содержание AiRanger SPL PL-573

Страница 1: ...AIRANGER SPL Instruction Manual PL 573 March 2001 IRANGER SPL 33455730 Rev 1 2 ...

Страница 2: ...on and in electronic version We encourage users to purchase authorized bound manuals or to view electronic versions as designed and authored by Siemens Milltronics Process Instruments Inc Siemens Milltronics Process Instruments Inc will not be responsible for the contents of partial or whole reproductions of either bound or electronic versions While we have verified the contents of this manual for...

Страница 3: ...et Features 27 Special Parameters 28 Programming Security 28 Quick Start Parameters 29 Operation 31 Display 31 Keypad 32 System Performance Evaluation 33 Performance Test Results 34 Application Parameters 35 Volume Parameters P050 to P055 35 Failsafe Parameters P070 to P072 39 Relay Parameters P100 to P104 P110 to P113 P129 41 mA Output Parameters P200 to P203 P210 to P215 P219 48 Enhancement Para...

Страница 4: ...825 P830 P835 P840 P845 P850 P852 72 Test Parameters P900 to P913 80 Measurement Parameters P920 to P923 83 Master Reset P999 85 Technical Reference 87 Transmit Pulse 87 Echo Processing 87 Distance Calculation 88 Sound Velocity 88 Volume Calculation 89 Measurement Response 90 Application Examples 91 Communication Support 98 Maintenance 101 Troubleshooting Guide 103 Measurement Difficulties 104 Fla...

Страница 5: ...on volatile no back up battery required Programming via removable programmer or optional Dolphin Plus Display Custom Graphics backlit LCD with 51 mm 2 in x 127 mm 5 in viewing area Temperature Compensation 50 to 150 C 58 to 302 F integral transducer sensor TS 3 temperature sensor programmable fixed temperature Temperature Error with compensation 0 09 of range fixed temperature 0 17 C deviation fro...

Страница 6: ... Interface non invasive digital infra red Enclosure general purpose 67 mm W x 100 mm H x 25 mm D 2 6 W x 4 H x 1 D ABS plastic Weight 150 g 0 3 lb Transducer Compatible Models ST Ultrason LR STH and Echomax series Refer to the associated instruction manual Options Temperature Sensor TS 3 Buffered Interface Converter BIC II SPL bipolar communication current loop to remote RS232 or RS422 port SmartL...

Страница 7: ...ays No shielded cable necessary Bipolar current loop Belden 8760 shielded twisted pair 18 AWG 0 75 mm2 or equivalent maximum separation 1 500 m 5 000 ft Temperature Sensor Belden 8760 shielded twisted pair 18 AWG 0 75 mm 2 or equivalent 365 m 1200 ft per TS 3 maximum RJ11 Link No shielded cable necessary maximum length 3 m 10 ft RS 232 Link Belden 8770 3 conductor shielded 18 AWG 0 75mm2 or equiva...

Страница 8: ...Page 8 AiRanger SPL PL 573 Specifications ...

Страница 9: ...ogramming defines program mode display and keypad functions and general programming information Quick Start Parameters details the minimum recommended programming required to prepare the SPL for RUN mode operation Operation defines RUN mode display and keypad functions including the RUN mode entry procedure and performance evaluation recommendations Application Parameters details the programmable ...

Страница 10: ...the reflection echo from the material Using the time measured the SPL calculates the distance from the transducer face to the material The distance calculation is dependent upon the sound velocity within the vessel When a Milltronics ultrasonic temperature transducer is used variable air temperatures are automatically compensated For superior air temperature compensation a Milltronics TS 3 tempera...

Страница 11: ...ng equipment and or process control equipment As well the SPL may be connected to a Milltronics BIC II Buffered Interface Converter to provide RS 232C and or RS 422 communications for host computers Distributed Control Systems and special capable of operating as a host device Programmable Logic Controllers With the addition of a Milltronics Smartlinx protocol specific plug in communications module...

Страница 12: ...face with popular industrial communication systems While the SPL is typically used to monitor material level in open or closed vessels any process which requires a distance measurement within the system range is a candidate for SPL application Refer to Technical Reference Application Examples for detailed descriptions of a small sample of process measurement requirements to which the SPL may be ap...

Страница 13: ...or RS 232 RS 485 or Milltronics bipolar current loop The current loop provides remote communication via Milltronics BIC II to the peripheral device The BIC II converts the current loop to RS 232 or RS 422 signal Dolphin Compatible Communications Dolphin Plus is Milltronics Windows95 compatible software It offers local interface through the infrared ComVerter or remote connection through the RS 232...

Страница 14: ...y features Operation Select level space distance difference average or tripper operation Material Liquid or Solid automatically adjusts echo processing with one entry Response Slow medium fast surge or immediate response to material level changes one entry Units Display Readings in m cm mm ft in or any other units desired Additional Features use as desired Volume 8 pre programmed tank shape option...

Страница 15: ...l SPL mounting location is conformant to the units specifications provides clearance to swing open the front cover and perform the required wiring connections provides access for viewing is vibration free Avoid a location that is exposed to continuous direct sunlight Otherwise provide a sun shield close to high voltage or current runs contactors or SCR control drives Cable Conduit Entry Requiremen...

Страница 16: ...not provide grounding between connections Use grounding type bushings and jumpers This product is susceptable to electrostatic shock Follow proper grounding procedures Transducer Mounting Objects near the transducer face cannot be reliably detected Mount the transducer above the highest material level away from the nearest monitored object by the following Nearest Distance NearestDistance Transduc...

Страница 17: ...s do not connect cable shields to ground earth elsewhere Insulate tape cable shields at all shield junctions to prevent ground loops Warnings All field wiring must have insulation suitable for at least 250V Hazardous voltage present on transducer terminals during operation Relay contact terminals are for use with equipment having no accessible live parts and wiring having insulation suitable for a...

Страница 18: ... are ready to install you SmartLinx module or want to change it follow the procedure as outlined on page 21 System Diagram Note Maximum system capability Not all components or their maximum quantity may be required AiRanger SPL fieldbus communication point to point communication Milltronics transducer see Specifications Milltronics temperature sensor Milltronics BIC 2 Dolphin or customer device cu...

Страница 19: ...r terminals during operation Temperature Sensor to TS 3 Note Use TS 3 temperature sensors only Don t jumper the terminals if TS 3 s are not used 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 Note Relays are shown in de energized state See Spe...

Страница 20: ...o 750Ω max Communication Notes The communication protocol is automatically detected by the SPL and shown via LED on the motherboard Ground shield at one end only Serial RS 232 RS 485 to customer device RS 232 port 15m 50 ft max to customer device RS 485 port 1200m 4 000 ft max ...

Страница 21: ...ew and the card itself 3 Mount the card by mating the connectors and secure the card in place using the two screws provided Note Refer to the Smartlinx module documentation for any required hardware settings prior to replacing the LCD card or closing the SPL lid 4 Replace the LCD card and secure in place using the screws removed in Step 1 Belden 8760 or equivalent 18 AWG 2 wire shielded twisted 15...

Страница 22: ...of the level monitors to be synchronized Note To synchronize the SPL with other Milltronics ultrasonic level monitors contact Milltronics or your local distributor Power Note Before making the power connection ensure proper voltage selection AC Supply Wiring Notes The equipment must be protected by a 15 A fuse or circuit breaker in the building installation A circuit breaker or switch in the build...

Страница 23: ... into the docking bay and is kept there by a magnet Use the hand programmer to change individual parameters Dolphin ComVerter The ComVerter fits into the docking bay similarly to the hand programmer and provides communications with a PC running Dolphin Plus available separately ...

Страница 24: ...Page 24 AiRanger SPL PL 573 Installation ...

Страница 25: ... specific to certain programming conditions and therefore all indicators are not displayed at any given time Display Segment Description Parameter Number the programmable feature the Parameter Value pertains to Point Type the Point Number refers to a Relay mA Output or TS 3 Point Number the Relay or Index number the Parameter Value pertains to Parameter Value the current value of the Parameter Num...

Страница 26: ...ue decimal point moves Profile and TVT Pointers left input a negative Parameter Value moves Profile and TVT Pointers right delete the current Parameter Value display initiate a parameter reset store the current Parameter Value in memory complete a parameter reset switch the Parameter Value to or Units access Auxiliary Parameter Function increase the accessed display value decrease the accessed dis...

Страница 27: ...s required scroll access As preset Quick Start Parameters and previously altered parameters may be scroll accessed 2 Press as required to underline the Point Number display field and a Key in the desired Point Number direct access or b Press or as required scroll access To alter the Parameter Value for all Point Numbers at once select Point Number 00 3 With the desired Parameter Number and Point N...

Страница 28: ...returns to the Point Number previously selected when a non global parameter is accessed In the parameters sections of this manual Global parameters are identified by a G beside the Parameter Number Programming Security All operator programming is retained in non volatile memory immune to power interruptions When programming is complete the programmer may be removed and locked away to prevent inadv...

Страница 29: ...transducer face to material level distance out of service the transducer is not fired alarm relay s energize pump relay s de energize and mA output s go to the Empty vessel value Values 0 out of service 1 level 2 space 3 distance preset P002 Material Enter the type of material to be monitored If the material presents a flat surface perpendicular to the transducer beam select liquid Values 1 liquid...

Страница 30: ...be measured in Units This value is preset to 5 000 m or equivalent Units programmed The value entered automatically sets Span P007 to the maximum recommended value Values 0 000 to 9999 P007 Span Enter the maximum surface distance from Empty P006 Span is automatically preset to 1 1 x the blanking value P800 less than the Empty value P006 unless it is altered manually For distance Operation P001 3 S...

Страница 31: ...above 25 Filling Indicator indicates the vessel is filling Emptying Indicator indicates the vessel is emptying Bar Graph indicates the absolute always a positive value material level from 0 to 100 Data Out indicates the SPL is transmitting data to the Peripheral Communications terminals Transducer Active indicate the Point Number scanned independent from the Point Number display Auxiliary Reading ...

Страница 32: ...vel change selects the Auxiliary Reading failsafe time left in percent selects the Auxiliary Reading parameter value Key in any Parameter Number selects the Auxiliary Reading material level may be operator altered via P731 selects the Auxiliary Reading distance material level to transducer face initiates program mode access see switches the Reading between Units percent of Span completes program m...

Страница 33: ... to Full 0 to 100 100 to 0 Objects close to the transducer face 0 are not detectable 3 Press to observe the mA output value for the Point Number displayed Auxiliary Reading Operation Level Space Distance Empty to Full 4 20 mA 20 4 mA Objects close to the transducer face 4 mA are not detectable 4 Press to observe the Failsafe Time Left time left in percent before failsafe activation Each time a val...

Страница 34: ...requirements proceed to the Troubleshooting Guide C If the SPL provides accurate and repeatable measurements however alternate Reading units failsafe action relay or mA output operation is desired proceed to Application Parameters If all operating conditions cannot be observed during the System Performance Evaluation refer to Enhancement Parameters Reading Measurement P920 Perform a Reading Measur...

Страница 35: ...lected requires additional vessel dimension entry the associated parameters as indicated below may be scroll accessed When Operation is level P001 1 material volume is calculated Alternatively when Operation is space P001 2 remaining vessel capacity is calculated In the RUN mode Readings are displayed in percent of and mA outputs are proportional to maximum volume To convert Readings to volumetric...

Страница 36: ...0 000 to 9999 P053 Tank Dimension L Enter the length of the tank excluding both end sections if P050 7 in Units P005 Values 0 000 to 9999 P054 Level Breakpoints Universal Volume Calculation Enter level breakpoints where volume is known if P050 9 or 10 Values 0 000 to 9999 P055 Breakpoint Volumes Universal Volume Calculation Enter the volume corresponding to each Level Breakpoint entered Values 0 0...

Страница 37: ...of decimal places displayed is automatically adjusted if necessary to prevent the number of Reading digits from exceeding display capabilities This value is automatically altered when Units P005 or Max Volume P051 are altered Values 0 no digits after the decimal point 1 1 digit after the decimal point 2 2 digits after the decimal point 3 3 digits after the decimal point P061 Convert Reading Enter ...

Страница 38: ...to 0 000 no offset e g To reference a material level to sea level enter the distance in Units P005 between Empty P006 and sea level Enter a negative value if Empty is below sea level This feature affects the SPL and BIC II if used Reading only Relays and mA output are not affected Values 999 to 9999 vessel sea level empty P006 display offset P062 ...

Страница 39: ...PL advances to the Failsafe Material Level P071 as restricted by Failsafe Advance P072 When a valid measurement is made after the timer expires the SPL 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 Technical difficulty messages flash in the Reading dis...

Страница 40: ...ion symbol 2 Press or as required to scroll access the desired option 3 Press Alternatively a specific Failsafe Material Level within 50 to 150 of Span P007 may be entered directly in Units P005 or of Span P007 Values 999 to 9999 P072 Failsafe Level Advance Select the restriction applied to the SPL advance to and from the Failsafe Material Level When restricted preset the SPL advances to the Fails...

Страница 41: ...ay Failsafe P100 G Relay Set Up 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 Relay status during a measurement difficulty is dependent upon Failsafe programming See Failsafe Parameters P070 to P072 and Relay Failsafe P129 As preset relay status is held at last known materia...

Страница 42: ...ay Status indicators are displayed and the allocated relay s de energize rises 5 of Span P007 above the Low and Low Low Alarm value the associated Alarm and Relay Status indicators extinguish and the allocated relay s energize Note Enter all Standard Alarm material level values in Units P005 or percent of Span P007 as referenced to Empty P006 To display the current value or enter a new value in pe...

Страница 43: ...arameter Type display changes to the Relay symbol and the Point Number display changes to the Relay Number corresponding to the SPL terminals Function Designation Operation Level LL L H or HH Similar to Standard Alarms but with Relay A B Setpoints In Bounds b1 or b2 Alarms when level is between the Relay A B Setpoints Out of Bounds b1 or b2 Alarms when level is not between the Relay A B Setpoints ...

Страница 44: ...arm not applicable to Point 3 differential level 4 rate of change alarm 5 temperature alarm 6 LOE alarm 7 transducer cable fault alarm 50 pump control non sequenced Independent Relay Setpoints Relay A and B Setpoint values set the critical points based on the Relay Function where in the Run mode Relay status indicators are switched ON and OFF Alarm Indicators if programmed are switched ON or OFF R...

Страница 45: ...e decreases to 5 min Off Off de energizes Empty rate increases to 10 min Rate of change 10 5 On On energizes Empty rate decreases to 5 min On On de energizes Temperature rises to 60 C 60 55 Off Off energizes Temperature falls to 55 C On On de energizes Temperature falls to 30 C Temperature 30 25 Off Off energizes Temperature rises to 25 C On On energizes Start pump down on level at 80 80 20 Off Of...

Страница 46: ...ounds lower setpoint P129 Relay Failsafe Use this feature for relay failsafe operation independent from the Failsafe Material Level P071 When accessed the Parameter Type display changes to the Relay symbol and the Point Number display changes to the Relay Number corresponding to the SPL terminals Select OFF to have the relay respond to the Failsafe Material Level P071 HOLd to hold the relay at the...

Страница 47: ...pplication Param To select an independent Relay Failsafe option value 1 Press to display the Auxiliary Function symbol 2 Press or to scroll access the failsafe options 3 Press with the desired option displayed Values OFF HOLd dE En ...

Страница 48: ...20 mA 2 4 to 20 mA preset 20 mA high level unless P001 2 or 3 then 20 mA low 3 20 to 0 mA 4 20 to 4 mA 20 mA low level unless P001 2 or 3 then 20 mA high P201 mA Function Use this feature to alter the automatic mA output measurement relationship if desired The mA Function automatically corresponds to level space or distance based upon Operation P001 If a Tank Shape P050 is programmed the mA Functi...

Страница 49: ...ence the 20 mA output to any point in the measurement range Enter the material level referenced to Empty P006 corresponding to 20 mA This feature is preset to 0 or 100 of Span P007 as determined by Operation P001 Typically the value is entered in Units P005 or percent of Span P007 If mA Function is set for volume enter the value in the Max Volume P051 units or as a percent of Max Volume Values 999...

Страница 50: ...nected indicate 20 00 mA when this parameter is accessed Values 1 00 to 1 000 P219 mA Failsafe Use this feature if mA output failsafe operation independent from the Failsafe Material Level P071 is desired To select an independent mA Failsafe option value 1 Press to display the Auxiliary Function symbol 2 Press or to scroll access the failsafe options 3 Press with the desired option displayed Value...

Страница 51: ...set and or sound velocity 56 Temperature Compensation to override automatic temperature compensation features 59 Rate to override Measurement Response P003 60 Measurement Verification to override Measurement Response P003 62 Scanning to override automatic scanning delay or use Auxiliary Transducer 64 Display Parameters to override the preset display operating characteristics 65 Peripheral Communic...

Страница 52: ...s feature if vessel temperature is monitored by an Ultrasonic Temperature transducer to view the highest temperature recorded in C Values 50 to 150 P302 V Temperature Sensor Max Use this feature if vessel temperature is monitored by a TS 3 Temp Sensor to view the highest temperature recorded in C When accessed the TS 3 symbol is displayed in the Point Type field Values 50 to 150 ...

Страница 53: ...ed results are based on current programming which may have been altered since the record was saved This permits the effect on the echo profile to be observed when changing an echo parameter P330 Profile Record In addition to serving as a library for profile records this parameter provides two functions manually records and saves echo profiles displays an echo profile recorded manually or automatic...

Страница 54: ...rd deleted address 3 clear Access the Scope Displays P810 parameter to select the Transducer P331 G Auto Record Enable Use this feature if desired to enable disable the Auto Profile Record function Values 0 off 1 on P333 G Auto Record Interval Enter the time in minutes to elapse after an Auto Profile Record is saved before another Auto Profile Record can be saved subject to all other restrictions ...

Страница 55: ...ying Use this feature to restrict Auto Profile Records from being saved unless the level is rising falling or either If the level changes at a rate in excess of the corresponding Filling Emptying Indicator P702 P703 values the Echo Profile is saved subject to this and other Auto Profile Record restrictions Values 0 Auto Profile Record on filling or emptying preset 1 Auto Profile Record on filling ...

Страница 56: ... Offset Calibration Use this feature if the Empty P006 value was estimated or if the reported material level is consistently high or low by a fixed amount e g 2 cm Before using this feature verify the Empty P006 value as measured or estimated was entered correctly Vessel atmosphere Temperature P664 is correct Offset Reading P062 value if used was entered correctly To perform an Offset Calibration ...

Страница 57: ...d velocity calibration was performed Values 999 to 9999 When Operation P001 is set for level the distance is from Empty P006 to the material object surface space or tripper the distance is from Span P007 to the material object surface distance the distance is from the transducer face to the material object surface P652 Offset Correction View the amount of offset applied to the Reading This value i...

Страница 58: ...8 F This value is used to calculate Sound Velocity P653 using Temperature P664 based on the sound velocity vs temperature characteristics of air After a Sound Velocity Calibration this value may be checked to verify whether the vessel atmosphere is air typically 344 1 m s or 1129 ft s Alternatively if the vessel atmosphere sound velocity at 20 C 68 F is known and the sound velocity vs temperature ...

Страница 59: ...onic temperature transducer and select average Values 1 AUTO 2 Temp Fixed 3 Ultrasonic Temperature Transducer 4 TS 3 Temperature Sensor 5 Average 6 TS 3 SENSOR 1 P661 Temp Fixed Use this feature if a temperature sensing device is not used Enter the temperature in C of the vessel atmosphere within the transducer beam If the temperature varies with distance from the transducer enter the average temp...

Страница 60: ...r advance to a lower Failsafe Material Level P071 Enter a value slightly greater than the maximum vessel emptying rate This value in Units P005 or of Span P007 per minute is automatically altered when Measurement Response P003 is altered See Technical Reference Measurement Response Values 0 000 to 9999 P702 Filling Indicator Enter the fill rate required to activate the LCD Material Filling indicat...

Страница 61: ...ay update Values 0 rate display not required 1 continuously averaged and updated 2 1 minute or 50 mm 2 in 3 5 minutes or 100 mm 3 9 in 4 10 minutes or 300 mm 11 8 in 5 10 minutes or 1000 mm 39 4 in P705 Rate Update Time Enter the time period in seconds over which the material level rate of change is averaged before Rate Value update Values 0 000 to 9999 P706 Rate Update Distance Enter the material...

Страница 62: ... outside of the Echo Lock Window P713 must meet the sampling criterion P712 For total lock Echo Lock Window P713 is preset to 0 The SPL continuously searches for the best echo according to the algorithm chosen P820 If the selected echo is within the window the window is then centered about the echo If not the window widens with each successive shot until the selected echo is within the window The ...

Страница 63: ...ed about the echo used to derive the Reading When a new measurement falls within the window the window is recentered and the new Reading is calculated Otherwise the new measurement is verified by Echo Lock P711 before the SPL updates the reading When 0 is entered preset the window is automatically calculated based on the Max Fill Empty Rate P700 P701 This calculation is automatically performed whe...

Страница 64: ...Shot Delay Use this feature if transient acoustic noise within the vessel is causing measurement difficulties This value is automatically altered when Measurement Response P003 is altered See Technical Reference Measurement Response Enter the delay between transmit pulse shots in seconds Values 0 1 to 4 0 P729 V Scan Time View the time elapsed in seconds since the point displayed was last scanned ...

Страница 65: ...tion as desired 3 Press If desired also enter the Parameter Number to default in the Auxiliary Reading display Values 000 to 999 P731 G Auxiliary Reading Key Use this feature to enable a specific Parameter Value to be monitored in the RUN mode Enter the Parameter Number whose value is to be displayed in the Auxiliary Reading field when is pressed in the RUN mode See Operation Keypad for RUN mode A...

Страница 66: ...ct off to scroll access all operator accessible parameters smart to scroll access Quick Start previously altered and tagged parameters tagged to scroll access operator tagged parameters only Any accessed parameter may be tagged or untagged by pressing is displayed when a previously tagged or altered parameter is accessed Values 0 off 1 smart preset 2 tagged ...

Страница 67: ...ote Refer to Technical Reference Communication Support if a Peripheral Communication is required Values 0 off 1 normal essages preset 2 formatted messages P748 RS485 Termination Single point termination may be required to minimize transmission reflections on long cable runs typical of 500m or more Turn on the termination if required Values 0 off 1 on P749 Serial Bus Type V Displays the type of com...

Страница 68: ...the PASS requirements communication halts and tests are repeated until PASS requirements are met Communications then resumes Displays PASS no problem FAIL faulty SmartLinx module or SPL ERR1 unknown protocol upgrade the SPL software P791 Bus Error This feature indicates if an error condition is occurring on the bus Displays 0 no error Ø error code refer to the SmartLinx module documentation for ex...

Страница 69: ...distance is less than Empty P006 Span P007 To reset the automatic Near Blanking value press Values 0 000 to 9999 P801 Range Extension Use this feature if an incorrect level is reported when material level is lower than Empty P006 Range Extension is the distance in Units P005 or of Span P007 beyond Empty which is still ultrasonically measurable If Empty is substantially higher than the actual vesse...

Страница 70: ...s feature when an incorrect material level is reported The short and long Confidence Thresholds are preset to 10 and 5 respectively If the Echo Confidence P805 of a particular echo exceeds the Confidence Threshold that echo is considered for evaluation by Sonic Intelligence Values x y x short 0 to 99 y long 0 to 99 P805 V Echo Confidence Use this feature to monitor the effect of transducer aiming ...

Страница 71: ...ected to base the distance calculation upon Values 0 to 99 P807 V Noise Observe the average and peak ambient noise in dB above 1 µV rms being processed The noise level is a combination of transient acoustic noise and electrical noise induced into the transducer cable or receiving circuitry itself Values x y x average 99 to 99 y peak 99 to 99 ...

Страница 72: ... The relevant parts of an echo profile are listed here These are visible in either Dolphin Plus or an oscilloscope P810 Scope Displays Use this feature to monitor the results of Echo Processing parameter alterations Connect an oscilloscope to Display Board TP4 TP5 and TP6 Sweep 10 µs div to 1 ms div x 100 for real time Amplitude 1 V div Trigger external Observe any combination of the following Sco...

Страница 73: ...the transmit pulse and the processed echo Values 0 000 to 9999 Profile Pointer Parameters When a Profile Pointer Parameter is accessed the Echo Lock Window scope display changes to a Profile Pointer display The Profile Pointer may be moved to a number of points on the Echo Profile to gain specific information dependent upon the Profile Pointer Parameter used To move the Profile Pointer to a specif...

Страница 74: ...ct an Algorithm 1 Press to display the Auxiliary Function symbol 2 Press or to display the desired Reading display symbol s 3 Press when the desired Algorithm is displayed The material vessel type most likely to benefit from a particular algorithm is included with the following option values Value Description ALF long range Area Largest and First average general purpose solids A long range Area on...

Страница 75: ...Use this feature if the reported material level fluctuates slightly though the material surface is still when monitoring solid Material P002 2 only Enter the amount in ms of long shot Echo Profile smoothing required to eliminate jagged peaks in the Echo Profile When a value is keyed in the nearest acceptable value is entered Values 0 off preset greater wider P825 Echo Marker Trigger Use this featu...

Страница 76: ...bias the shape of the TVT curve in order to avoid it crossing false echoes from fixed objects Adjustment to this parameter is best done while viewing the echo profile on an oscilloscope refer to P810 When using an oscilloscope the Echo Lock Window display becomes the TVT Curve Pointer The TVT curve is divided into 40 breakpoints accessible by enabling the point number as the breakpoint index field...

Страница 77: ...m TVT Curve start point in dB above 1 µV rms This feature preset to 45 should only be used if increased Near Blanking would extend farther than desired into the measurement range Values 30 to 225 P834 TVT Start Duration Use this feature in conjunction with TVT Start Min P833 to ignore false echoes or pick up true echoes near the start of the Echo Profile Enter the time in ms for the TVT Curve to d...

Страница 78: ...lly altered by Measurement Response P003 See Technical Reference Measurement Response Values 0 to 200 P842 Short Shot Frequency Use this feature to adjust the short shot transmit pulse frequency in kHz This feature is automatically altered when Transducer P004 is altered Values 10 00 to 60 00 P843 Long Shot Frequency Use this feature to adjust the long shot transmit pulse frequency in kHz This fea...

Страница 79: ... the short shot echo when both short and long shots are evaluated see Shot Mode P803 This feature is preset to 20 Values 0 to 100 P851 Short Shot Floor Enter the minimum echo strength in dB above 1 µV rms initiated from a short shot to be considered for evaluation This feature is preset to 50 Values 0 to 100 P852 Short Shot Range Enter the maximum distance in Units P005 to be measured using short ...

Страница 80: ...isplayed indicating the type of memory failure Values PASS memory test successful F1 RAM F2 NOVRAM F3 EEPROM F4 EPROM P902 V Watchdog Press to reset the microprocessor On successful completion in about 15 seconds the SPL enters the RUN mode P903 V Display Press to activate the display test All LCD segments and symbols are temporarily displayed P904 G Keypad Press each keypad key in the following s...

Страница 81: ...d repeat the test The first test performed sets up the auto polarity function P907 Programmer Interface Press 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 Press to alter the relay state energized de energized o...

Страница 82: ...by the connected ultrasonic temperature transducer Err is displayed if the transducer is not equipped with an integral temperature sensor Values 50 to 150 P913 Sensor Temperature Access this parameter to display the vessel temperature in C as monitored by the connected temperature sensor OPEn is displayed if a TS 3 is not connected Values 50 to 150 ...

Страница 83: ...rnatively press to simulate a rising and falling material level During the simulation the SPL will operate as though the material level was repeatedly cycling from full to empty to full and so on at a rate of 1 of Span P007 per second See Lock P000 to activate control relays during simulation The simulation starts at level 0 unless a specific level value was entered beforehand Press to switch to t...

Страница 84: ...an P007 P923 Distance Measurement The Reading corresponds to the distance between the material level and the transducer face P924 Volume Measurement The Reading corresponds to the volume calculation in percent of Max Volume P051 Press as required to display in Max Volume units P927 Distance Percent Same as P923 plus alternate reading in press ...

Страница 85: ...ar all operator programming from memory after replacing the SPL EPROM with a different software revision number Following a Global Master Reset complete reprogramming is required To perform a Global Master Reset 1 With the Parameter Number field accessed key in 999 2 With the Point Number field accessed key in 00 3 Press C ALL is displayed until the reset is complete ...

Страница 86: ...Page 86 AiRanger SPL PL 573 Enhancement Param ...

Страница 87: ... achieved by establishing the criteria which a portion of the echo profile must meet to be considered the true echo echo reflected by the intended target Insignificant portions of the echo profile outside of the measurement range Span P007 Range Extension P801 below the TVT Curve P830 to P835 and less than the Confidence Threshold P804 and Short Shot Floor P851 are automatically disregarded The re...

Страница 88: ...used for the distance calculation is 344 1 m s 1129 ft s Variable air temperature is automatically compensated when a Milltronics ultrasonic temperature transducer is used If the transducer is exposed to direct sunlight a TS 3 temperature sensor should be used Also if the temperature varies between the transducer face and the object monitored a TS 3 temperature sensor mounted near the material sur...

Страница 89: ... be entered directly Volume Calculation The SPL provides a variety of volume calculation features P050 to P055 If the vessel to be monitored does not match any of the 8 preset Tank Shape calculations a Universal Volume calculation may be used Use the level volume graph or chart provided by the vessel fabricator or create one based on the vessel dimensions From this graph determine which Universal ...

Страница 90: ...mediately before and after any sharp angle as well as 1 breakpoint exactly at the angle on the curve Measurement Response The SPL Measurement Response P003 to material level changes is designed to exceed the most demanding installation requirements If any of these parameters are independently altered a Measurement Response parameter alteration automatically changes the independently altered value ...

Страница 91: ...1 P702andtimesincelastvalidmeasurement P728 Shot Delay s 0 5 0 5 0 5 0 2 0 1 P803 Shot Pulse Mode option 2 2 2 1 1 P841 Long Shot Number qty 10 5 2 1 1 Application Examples The following examples describe the use of SPL programmable features to meet the needs of specific process measurement requirements It is highly unlikely that your specific installation will match one of these examples exactly ...

Страница 92: ...the cement level exceeds 25 m or falls below 10 m filling equipment is to be automatically deactivated at 27 m in the event of a measurement difficulty failsafe operation is to be activated in 2 minutes if the difficulty doesn t subside the filling process is to be stopped before a spill occurs an XLT 30 transducer is mounted with its face flush with the top of the vessel a TS 3 temperature sensor...

Страница 93: ...nter 5 for Low Low Alarm at 5 000 m With process control equipment disabled enter the RUN mode to monitor system performance and alarm programming Otherwise perform a Reading Measurement simulation P920 When satisfied with system performance and programming connect a high alarm indicator to Relay 1 see P100 4 connect a low alarm indicator to Relay 2 connect a high high alarm indicator and filling ...

Страница 94: ...arting the infeed and filling the vessel to 27 00 m Material Volume To perform a volume conversion for the preceding example we ll assume the vessel is cylindrically shaped with a flat bottom the vessel volume for Empty to 29 01 m Span is 1457 m 3 Volume Parameter Settings Number Description Instructions P050 Tank Shape Enter 1 for vertical cylinder with flat bottom P051 Max Volume Enter 1457 for ...

Страница 95: ...ft each the maximum vessel filling rate is 1 ft per minute slower at mid level a mA output scaled from 4 mA at Full to 20 mA at Empty is required for PLC operation in the event of a measurement difficulty failsafe operation is to be activated in 6 seconds if the difficulty doesn t subside the mA output must immediately assume 22 00 mA an XCT 8 transducer is mounted in a standpipe so that the face ...

Страница 96: ...w level P001 2 P213 mA Max Limit Enter 22 for 22 00 mA P219 mA Failsafe Enter 20 2 for 20 20 mA Parameter Setting for Temperature Averaging Number Description Instructions P660 Temp Source Enter 5 for average XCT 8 and TS 3 temperatures With process control equipment disabled enter the RUN mode to monitor system performance and alarm programming A Reading Measurement simulation P920 may be perform...

Страница 97: ... distance from material to Full in feet set the mA Function P201 to 2 Application Assistance The preceding examples describe only two ways in which the SPL can be applied to process measurement requirements The SPL can be used to monitor almost any process within the temperature measurement range and chemical immunity capabilities of the system where a distance measurement or determination of pres...

Страница 98: ...a bits no parity and 1 stop bit If Peripheral Communications P740 is set for formatted messages a comma is inserted between each message field except immediately preceding the End of Message characters MT 00 Measurement Message Field Name Definition Start Of Message STX 02 Message Type 2 characters 00 indicates the following data pertains to a scan point measurement Point 3 characters 001 to 003 e...

Страница 99: ...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 temperature 20 C Percent 5 characters 00 00 to 9999 e g current level 85 00 of span EEEE field overflow End Of Message CR 0D MT 01 Hold Message e g Field Name Definition Start Of Message STX 02 Message Type 2 characters 01 indicates the SPL was re...

Страница 100: ...nt Not Scanned e g Field Name Definition Start Of Message STX 02 Message Type 2 characters 03 indicates the Point Number is not in service Point 3 characters 001 to 003 e g Point Number 1 End Of Message CR 0D start of message point end of message message type ...

Страница 101: ...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 If material build up on the transducer face is observed to maintain maximum system performance a schedule of regular cleaning should be adopted ...

Страница 102: ...Page 102 AiRanger SPL PL 573 Maintenance ...

Страница 103: ...E Reading too high Select larger Units P005 or lower Convert Reading P061 Reading fluctuates while material level is still or vice versa Incorrect measurement stabilization Alter measurement Response P003 accordingly See Technical Reference Measurement Response Reading is fixed regardless of the actual material level Transducer beam obstructed standpipe too narrow or transducer mounting resonant R...

Страница 104: ...UN mode Press and hold for 4 seconds Failsafe Time Left changes to the Short Long Confidence display To display Echo Confidence in the program mode access the Echo Confidence P805 parameter To update the value displayed after each aiming adjustment Press 5 times or more to verify stability If the condition persists despite optimum aiming optimize transducer performance See Enhancement Parameters S...

Страница 105: ...emove the obstruction If the obstruction cannot be removed or avoided the SPL TVT Time Varying Threshold Curve must be modified to reduce the Echo Confidence derived from the sound reflected by the obstruction See Enhancement Parameters Scope Displays P810 and TVT Shaper P832 If the fixed Reading represents a minimal distance from the transducer face the condition may be caused by a sound beam obs...

Страница 106: ...onitored is not beyond the transducers maximum range 2 Material is not falling in the transducer sound beam 3 Material P002 value matches the material monitored 4 Measurement Response P003 is not set too fast 5 Transducer P004 type entered matches the transducer used If the periodic incorrect value is always the same see Fixed Reading If the incorrect value seems to be random verify the material s...

Страница 107: ...ng shot Echo Profile turn the Spike Filter P821 on and or widen the Narrow Echo Filter P822 Also if the true echo has jagged peaks use Reform Echo P823 If multiple echoes appear on the Echo Profile typical of a flat material profile especially if the vessel top is domed use the first Algorithm If the Echo Profile repeatedly switches from short to long adjust the Short Shot Range P852 to stabilize ...

Страница 108: ...Page 108 AiRanger SPL PL 573 Troubleshooting ...

Страница 109: ...A P053 Tank Dimension L P054 Level Breakpoints record values on a separate sheet P055 Breakpoint Volumes record values on a separate sheet Reading Value P060 Decimal Position P061 Convert Reading P062 Offset Reading Failsafe P070 Failsafe Timer P071 Failsafe material Level P072 Failsafe Level Advance Relays P100 Relay Set Up G P101 Hi Alarm P102 Lo Alarm P103 Hi Hi Alarm P104 Lo Lo Alarm P111 Rela...

Страница 110: ... Transducer max V P302 Temperature Sensor max V P330 Profile Record P331 Auto Record Enable G P333 Auto Record Interval G P334 Auto Record A Setpoint P335 Auto Record B Setpoint P336 Auto Record Filling Emptying P337 Auto Record LOE Time Installation Records P340 Date of Manufacture P341 Run Time P342 Start Ups Range Calibration P650 Offset Calibration P651 Sound Velocity Calibration P652 Offset C...

Страница 111: ... 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 P732 Display Delay G P733 Scroll Access G Peripheral Communication Support P740 Peripheral Communications G P748 RS485 Termination P749 Serial Bus Type Smartli...

Страница 112: ... 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 Shaper Adjust record values on a separate sheet P833 TVT Start Min P834 TVT Start Slope P835 TVT Slope Min P840 Short Shot Number P841 Long Shot Number P842 Sho...

Страница 113: ...nc 1954Technology Drive P O Box 4225 Peterborough ON Canada K9J 7B1 Tel 705 745 2431 Fax 705 741 0466 www milltronics com Siemens Milltronics Process Instruments Inc 2001 Subject to change without prior notice Printed in Canada 7ml19981bE01 c ...

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