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1. Maximum safe fill is too large Must be within measuring range of the radar between Minimum measurable distance from antenna and Tank bottom position Table 9 Operational error and warning messages Error number Error Warning message Description 1298 Level exceeds maximum safe fill 1299 Tank shell compensation vapour temperature not available Tank shell compensation is switched on but no vapour temperature is available 1300 Tank shell compensation ambient temperature not available Tank shell compensation is switched on but no ambient temperature is available 1316 EPS no peaks detected in the reflection diagram Check reflection diagram and thresholds 1321 EPS raw data clipping at the bottom Set Automatic gain to lt True gt or adjust Manual gain 1322 EPS raw data clipping at the top Set Automatic gain to lt True gt or adjust Manual gain 1323 EPS raw data clipping at the top and bottom Set Automatic gain to lt True gt or adjust Manual gain Part No 4417764 Revision 2 Honeywell Enraf SmartRadar FlexLine Professional For internal use only 37 38 Errors and warnings 1324 EPS raw data is almost DC Set Automatic gain to lt True gt or adjust signal Manual gain When Actual gain is maximal 7 there is probably a hardware failure 1326 E
2. Ring 9 2 466 1 521 Ullage X 19 479 2 466 1 521 19 m level Ring 8 2 390 1 911 17 089 4 856 3 911 1 911 Ring 7 2 390 y 14 699 7 246 6 301 4 301 x 5 133 16 812 15 867 _ 13 867 Ring 2 2 390 4 _ 2 743 19 2022 18 257 16 257 Ring 1 2 734 0721 945 21 000 19 000 Figure 6 Example steel storage tank with diameter of 83 82 m The same procedure has to be followed for all different levels with for instance an interval of 1 meter Then the following table is obtained Part No 4417764 Revision 2 SmartRadar FlexLine Professional 15 Honeywell Enraf For internal use only Compensations Table 6 Example of hydrostatic deformation figures Level Deformation Level Deformation Level Deformation m mm m mm m mm 0 0 8 0 54 16 2 64 1 0 01 9 0 69 17 3 08 2 0 03 10 0 88 18 3 57 3 0 07 11 1 09 19 4 17 4 0 13 12 1 32 20 4 71 5 0 20 13 1 59 21 5 36 6 0 29 14 1 90 21 945 6 04 7 0 40 15 2 25 The values in table 6 are the basis for the graph in figure 7 7 6 Hydrostatic deformation factor 0 3869 mm m ri Hydrostatic deformation minimum innage 8 1435 m s Level deviation mm Figure 7 Level m gt UR movement Compensation Remaining deviation Example of hydrostatic deformation corre
3. where tank shell deformation m tank diameter m product density kg m local gravity constant m s Poisson s constant for steel u 3 3 modulus of elasticity for steel E 206 1 x 10 tank shell ring thickness m distance of the liquid surface with respect to a level below the liquid surface T QO D a m Og a and b are e g the distances of the liquid surface with respect to the top and bottom of the shell segment under investigation If the tank shell thickness and internal diameter remains constant over the total height a 0 and b equals the innage level Part No 4417764 Revision 2 SmartRadar FlexLine Professional 13 Honeywell Enraf For internal use only Compensations If the rings have a different plate thickness each ring has to be calculated individually where a and b are the distance of the top and bottom welding seam of each individual ring with respect to the liquid surface Below follows an example of a calculation for a steel storage tank diameter 83 82 m product density of 1000 kg m3 with the ring heights and wall thickness as per following Table 5 Example of tank ring measures Ring no Ring height m Wall thickness mm 1 2 743 38 1 2 2 390 36 2 3 2 393 28 9 4 2 390 24 7 5 2 390 20 5 6 2 393 16 3 7 2 390 12 2 8 2 390 11 8 9 2 466 9 5 The local gravity constant is taken as 9 81288 m s The deformation per ring is refer to figure 6
4. Peaks below the threshold will not be selected as product peak except if the peak is identified as product peak in the differential spectrum see next section It enlarges the margins for tracking the product peak Part No 4417764 Revision 2 SmartRadar FlexLine Professional 21 Honeywell Enraf For internal use only 22 Diagnostics The SmartRadar FlexLine keeps track of the product peak with respect to previous measurements When the product passes an obstruction wild fluctuations can occur in the location of both product peak and obstruction peak Using an obstruction zone can enhance peak tracking especially when the obstruction is strong compared to the product peak Note When the obstruction peak is stronger than the product peak it will be impossible to measure accurately in the neighbourhood of the obstruction Differential spectrum The peak selection is not entirely based on the peaks in the power spectrum The SmartRadar FlexLine also calculates a so called differential spectrum In this spectrum only peaks that change over time will be visible This is especially useful when the product level is changing or turbulent Information about the maximum 15 strongest detected peaks in the differential spectrum can be read in entity Radar peak diagnostics diff The differential spectrum has one fixed threshold Differential spectrum threshold default 30 dB and a relative threshold which is relative to the highest p
5. Diagnostics When the phase guarding state is lt Recovery gt the SmartRadar FlexLine can only return to the lt Guarding gt state automatically when the product level is in a lt VALID gt part of the Heimdall table To see whether there s a lt VALID gt part in the neighbourhood of the present level compare PSD ullage to the lt VALID gt parts in the Heimdall overview or take a look at the Heimdall Diagram Attention the x axis of the Heimdall diagram is ullage not innage The ease of returning to the lt Guarding gt state is determined by the quality of the Heimdall table This is not only determined by the amount of lt VALID gt segments but also by the difference between the minimum and maximum lines When both are close within 15 mm recovery will be easy Figure 12 shows a typical example Between 5 5 and 6 5 m there s a typical obstruction pattern where the difference is quite large and recovery will be hard From 7 to 16 m is a typical tank wall pattern where the difference is small and an easy recovery is possible Heimdall Diagram 0 024 Created 2007 09 27 09 37 43 Device FlexLine Tank Demo 0 022 0 020 n 0 018 ia fe f A SE i VA aa A ii BE TAAA ER y 0 004 Ww ji Mi Z k i YA A Eo ae TY s 0 022 a 0 024 4 000 5 000 6 000 7 000 8 000 9 000 10 000 11 000 12 000 13 000 14 000 15 000 16 000 m This diagram is generated by Engauge 2007 Enraf B V Figure 12 Example of
6. Note Entities Tank bottom position and Upper reference position must be set to the correct value before an Accept reference command is given Note When the SmartRadar is moved to another location entity Difference radar and user ullage must be cleared as well as the Heimdall table The Heimdall table can be cleared by the Clear Heimdall Table command Difference radar and user ullage can be cleared by the Clear difference command Don t set Difference radar and user ullage to 0 because this is a valid value Engauge e To make sure the Accept reference command works fine all entities must have been sent to the gauge no yellow backgrounds may be visible prior to giving the command e To read the Accept reference status push the Read button is not automatically displayed e Toclear entity Difference radar and user ullage use Clear difference command SmartView e When the Accept reference command has failed an error message will appear behind the command When no message is visible the command has succeeded e Because of the limited space on the SmartView display some entities and statuses are abbreviated o Radar reference ullage is shown as Reference radar or Ref Radar ull from software version A1120 o Accept reference status is shown as Reference status and can be found in the commissioning menu o Difference radar and user ullage is shown as Dif usr radr ull o C
7. 5 m 1 7 1 long water probe that results in a change in minimum capacitance of 3 6 pF which will cause 5 9 mm 7 15 46 water level deviation Therefore the minimum water capacitance must be determined when the probe is installed and completely or partly covered by product In the following 3 situations the water probe can be calibrated e Situation 1 Probe fully covered by product e Situation 2 Probe partly covered by water and for the remaining part covered by product e Situation 3 Probe partly covered by product and for the remaining part covered by air In all other situations no calibration can be made Situation 1 probe fully covered by product Read the entity Measured water capacitance and enter that value into entity Minimum water capacity Situation 2 probe partly covered by water and for the remaining part covered by product Check by means of a manual dip the water level An interpolation is applied on the Measured water capacitance to find the Minimum water capacity Refer to figure 27 The interpolation is done as follows Water level Waterprobe bottom position of water i Waterprobe length x 100 24 If we assume the following numbers as an example Waterprobe bottom position 25 mm or 0 98 inch or 0 082 ft Waterprobe length 485 mm or 19 09 inch or 1 591 ft Water level 122 mm or 4 80 inch or 0 400 ft Part No 4417764 Revision 2 SmartRadar F
8. 91 B 2 6915 3 6 000 19 685 826 742 5200 05 C 3 9202 4 8 000 26 247 1335 721 8401 44 D 4 6861 5 10 000 32 808 1877 625 11809 91 E 4 9892 6 12 000 39 370 2402 187 15109 30 F 4 8295 7 14 000 45 932 2859 143 17983 47 G 4 2071 8 16 000 52 493 3198 225 20116 23 H 3 1219 9 18 620 61 089 3380 163 21260 59 1 6751 The entity Element weighing factor is located on Engauge tab sheet Board specific and contains 16 data fields ranging lt 0 x x gt floating point format Default value is lt 1 gt Note Only actually used elements are to be entered SmartRadar FlexLine Professional For internal use only Part No 4417764 Revision 2 Honeywell Enraf Commissioning Average temperature Range checking and element skipping A range check mechanism is built in to detect if a temperature element is used outside the specified temperature range In case the element is outside the range the temperature status is set to fail The temperature range on which is checked depends on the selected element type Table 11 Temperature element range Element type Low probe High probe temp range temp range Pt100 large VITO probes 200 C 328 F 250 C 482 F Pt100 small Ni191 PtCu100 Cu100 20 C 4 F 120 248 F Cu90 Enraf Cu90 Beacon Cu90 Nulectrohm 100 C 148 F 280 C 536 F Sangamo MRT Sangamo spot Range check off Range check on Fail Lower not Lower not not conn
9. Stainless steel 16x10 m C Tank shell vapour ambient ratio Ratio of vapour and ambient temperatures for calculation of the tank shell temperature Refer to table below for more information on the settings in a particular situation Tank shell ambient temperature selection Select board temperature or manual ambient temperature Tank shell reference temperature Reference temperature for the tank shell compensation This should be equal to the tank shell temperature at the time of the Accept reference command Next to the previous entities the following entities can be programmed when no measured data is available or selected Tank shell manual vapor temperature Manual vapour temperature Health status should be set to lt GOOD gt or lt UNCERTAIN gt for this value to be used Tank shell manual ambient temperature Manual ambient temperature Health status should be set to lt GOOD gt or lt UNCERTAIN gt for this value to be used Table 4 Standard values for Tank shell vapour ambient ratio Tank type Tank shell vapour ambient ratio Fixed roof tank 0 5 Fixed roof tank with stilling well Insulated fixed roof tank Floating roof tank with stilling well Floating roof tank without stilling well oe Rea Here is meant that the SmartRadar is installed on the stilling well The stilling well must be fixed at the tank bottom or at the first ring of the tank shell If the st
10. T1 When the product level drops from smoothing level to T2 position the average product temperature uses T2 and T1 to the ratio product level and T2 T3 distance according to the following formula PL3 E E PL lt lt ES Tap X xT1 ap E _ E E 7 E gt 23 Where Tap average product temperature T1 temperature element 1 E position element 2 T2 temperature element 2 E position element 3 48 SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Commissioning Average temperature The closer the product level 20 g T3 comes to T2 the higher the Ey le influence from T1 When T2 P 15 i a di is not selected anymore for Z iol ae average product z Smoothing level temperature then the F sb Position element 2 change to T1 is smooth 5 1 Level m For simplicity reasons the effect of the Figure 25 Smoothing Product immersion depth and Hysteresis are ignored Smoothing overrules the selected temperature calculation method standard enhanced custom The entities Low level behaviour Low element usage Temperature element exclude zone and Smoothing level are located on Engauge tab sheet Product temperature e The Low level behaviour can be setto o lt Temp to fail gt default o lt Temp to last fail gt o lt Temp use first element gt o lt Temp use second element gt e The Low element usage can be se
11. This section describes the necessary settings when two similar FlexConn boards are installed in the SmartRadar FlexLine For instance to interface the 365 MPT temperature and water probe with the CEPS Interface In this case one FII VT board 1 is used to process data from the VITO Interface board for the integrated water probe and one FII VT board 2 is used to process data from the VITO MRT Interface for average temperature from the MPT probe refer to figure 28 Board instance number To distinguish the FII VT boards each FIl VT board has a unique Board instance number range 0 9 When installed from the factory the Board instance numbers are already set different to 0 and 1 If a second board is added in the field the best way to act is as follows e Set the Board instance of the installed FIl VT board to 1 e Install the second FII VT board default Board instance number is 0 product temp vapour temp The entity Board instance is located on Engauge tab sheet Generic It is a value ranging lt 0 9 gt default value is lt 0 gt Figure 28 Two FII VT boards HART detected device To know which FIl VT board measures the water level and which FIl VT board measures the temperature check the entity HART detected device on the Engauge tab sheet Miscellaneous of each FII VT board e FIl VT board for water level HART detected devices reads 765 WATER e FIl VT board for temperature HART detected
12. True Figure 5 Flowchart for gauge reference compensation 12 SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Compensations Hydrostatic deformation compensation Due to the liquid pressure on the tank shell the tank shell will bulge As a result of this tank shell deformation the tank roof moves downwards Level gauges which are installed on roof nozzles of fixed roof tanks are influenced by this movement The SmartRadar FlexLine provides an innage compensation for this deformation This compensation is dependent on the innage level To enable the hydrostatic deformation compensation the 5 switch of Compensations and features should be set to True and the following entities should be set Hydrostatic deformation factor This entity contains the compensation factor in mm m Hydrostatic deformation minimum innage This entity contains the innage above which the compensation becomes effective Below this innage no compensation is applied First the upper reference movement must be found Then with linear regression a best fit line can be found as compensation The outcome of that calculation is used for the Hydrostatic deformation factor and Hydrostatic deformation minimum innage values Calculation of upper reference movement With the following formula according to OIML R 85 the tank shell deformation can be calculated Dxpx eed task Se 5 4xuxtxE h a
13. differs from the setting in entity Stilling well diameter the SmartRadar FlexLine has a scale error in the level measurement The Heimdall diagram will also show a scale error The scale error in the Heimdall diagram will be twice as large as the scale error in the level measurement because both phase ullage and PSD ullage are affected with opposite sign SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Diagnostics So when the Heimdall table has a slope on a stilling well application it s a strong indication the Stilling well diameter is incorrect The slope of phase ullage has the same sign as the slope of the Heimdall diagram the slope of PSD ullage has opposite sign When the slope of the Heimdall table is positive like in figure 14 e The slope of phase ullage is positive e The scale error of phase ullage Ephase gt 1 e Stilling well diameter has to be increased When the slope of the Heimdall table is negative e The slope of phase ullage is negative e The scale error of phase ullage Ephase lt 1 e Stilling well diameter has to be decreased It is strongly advised to use hand measurements to determine the size of the slope When these are not or not sufficiently available the slope can be estimated from the Heimdall diagram and will be approximately half the slope of the Heimdall diagram When this slope is determined the new stilling well diameter can be calcul
14. first peak When this setting is set to true the peak selection software will have a preference for the first of two strongest peaks when more than one peak is visible in the power spectrum the first peak is the peak closest to the antenna When this setting is false default the preference is for the furthest peak ma Note On stilling well applications unwanted modes cause additional peaks to appear after the main peak Therefore it is advised to set Preference to first peak to true on stilling well applications Part No 4417764 Revision 2 SmartRadar FlexLine Professional 23 Honeywell Enraf For internal use only 24 Diagnostics Diagnostic entities The SmartRadar FlexLine provides additional information on the peak selection process by the entities described below Engauge tab blad Peak selection These entities are all freeze entities so the freeze command should be given to get recent data The freeze command can be omitted if a reflection diagram is recently retrieved because the freeze command is automatically issued The peak selection data will then correspond to the latest reflection diagram Selected peak index Index of the selected peak in the high resolution power spectrum Confidence level Probability of the selected peak Confidence level varies between 0 and 100 A confidence level of 100 means the selected peak is definitely the right peak A confidence level lower than 100 means there are o
15. for the antenna in the factory and the settings for the antenna generally don t have to be adjusted There s one exception however if an S antenna is positioned in a stilling well and the stilling well diameter is twice the antenna size e g a S06 antenna in a 12 stilling well the Antenna mode should be changed from TEO1 to TE02 Tab sheet Antenna Exchange Note This only applies if the antenna is positioned in the part where the diameter is twice the antenna size So when for instance an S06 antenna is positioned in the 6 part of a 6 to 12 reducer the antenna mode should not be changed When for example an S10 antenna is placed on a 12 stilling well the antenna mode should also not be changed Level check Tab sheet Product level Use the Accept Reference command to initialize the level value of the SmartRadar FlexLine to the given reference level With this procedure the SmartRadar FlexLine now measures the reference level and the instrument will follow all relative level changes This command will only be accepted when the product level status is lt GOOD gt and the phase guarding state is unequal to lt Turbulence gt This command also puts the SmartRadar FlexLine in accurate level measurement mode so this command MUST be given The Accept Reference command can handle either a reference innage or a reference ullage level To adjust to an innage level fill in entity Reference innage to adjust to an ullage
16. for the calculation of the ullage values per ring _ 83 82 x 1000 x 9 81288 2 4667 N x 3 0234 x 107x 640 121 0 19 mm 6 n9 4x33x206 1x10 95x10 imal 6 haga 3 0234x 107 x 48861 2468 9 45 mm 6a x 11 8 x 10 Bh 3 0234x 107 x 7246 4856 072 mm 6b M E 12 2 x 10 i dhinge 3 0234 x 107 x 9 639 7 246 7 246 0 75 mm 6c 16 3 x 10 12 0297 9 639 7 See h ing 5 3 0234 x 10 x 05x10 0 76 mm 6d 14 419 12 029 h 3 0234 x 107x gt _ 0 77 mm 6e ring 4 247 x 407 2 Pd Bhings 3 0234 x 107x pri Pae 0 78 mm 6f 28 9 x 10 dh 3 0234 x 107 x 19 202 16 8127 0 72 mm 69 me 36 2 x 10 i 7 21 945 19 2027 _ ring 1 7 3 0234 x 10 x 381x102 0 90 mm 6h SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Compensations The total tank shell deformation then becomes Oho 945 0 19 0 45 0 72 0 75 0 76 0 77 0 78 0 72 0 90 6 04 mm 7 The above calculation is for a full tank level 21 945 m The tank shell deformation for the same tank but then with a level of 21 metres is 2 aa Bhings 3 0234 x 10x 5 0 07 mm 8 Likewise the other ring deformations are to be calculated If that is done the outcome is 6No1 000 0 07 0 33 0 61 0 67 0 70 0 72 0 73 0 68 0 85 5 36 mm 9 Level Ullage Ullage rY 21 945 0 21 m level
17. gt or lt disable gt default Note Element skipping is only effective when Temperature range check is enabled The Maximum skipped elements is a number which can be 1 default or 2 For W amp M purposes the Lower temperature range and Higher temperature range can be adapted The entities Low probe temperature range and High probe temperature range are located on Engauge tab sheet Board specific e The Low probe temperature range is a value ranging lt x x to Xx x gt floating point format Default value is lt 0 gt e The High probe temperature range is a value ranging lt x x to Xx x gt floating point format Default value is lt 0 gt Element wiring One or more spots can be disabled from average product temperature calculation This is set in entity Element wiring by placing a non zero 0 at the position of the element that needs to be excluded For instance to disable the lowest spot element Element wiring is set F000000000000000 The entity Element wiring is located on Engauge tab sheet Product temperature The Element wiring is a field of 16 hexa decimal characters A non zero 0 character at position x results in element x being excluded from calculation Default setting is lt OO00000000000000 gt SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Commissioning Average temperature Low level behaviour The low level behaviour
18. i Al gi i aa i 4 t 2 N g Ai 2 A ci 70 000 5 o Tt 60 000 a A 5i 50 000 5 2 a Ey D ay 40 000 mi re Relativo Threshold f oohhh feed 20 000 i 10 000 Ki 0 000 j 0 000 4000 000 8000 000 12000 000 16000 000 20000 000 24000 000 28000 000 mm This diagram is generated by Engauge 2011 Enraf B V Figure 11 Example of differential spectrum diagram available from software version A1130 Additional settings The SmartRadar FlexLine provides an additional setting to influence the peak selection process Engauge tab sheet Peak selection Peak selection fail delay Variations in the reflected signal from the product product reflection can cause repetitive low product reflection warnings With this entity a delay can be set before this warning is generated During the delay the last valid measured level is available If during the delay time a valid product reflection is measured the delay counter is reset and the measured data is available If no valid product reflection is obtained after the delay time a low product reflection warning is generated The delay time is not directly in a time unit but in number of measurements The SmartRadar FlexLine measures approximately 9 times per second When Peak selection fail delay is set to the default value of 1000 time delay is approximately 110 seconds The maximum value is 10000 corresponding to approximately 18 minutes From software version A1120 Preference to
19. know whether the Phase guarding state was lt Guarding gt or lt Recovery gt during the hand measurements When the gauge was in lt Recovery gt mode PSD ullage has been shown and PSD ullage will behave opposite to phase ullage When the gauge was in lt Recovery gt state use equation 2 to calculate the error of phase ullage When in doubt about the Phase guarding state check the Heimdall diagram refer to Heimdall diagram on a Stilling well A level scale error when present can be corrected in two ways e Adjustment of entity Stilling well diameter preferred e Ullage correction table For the correction via the ullage correction table refer to description of the ullage correction table see Compensations The correct value for the stilling well diameter can be calculated with the following equation Stilling well diameter 11 2 i Stilling well diameter SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Scale Error on Stilling Well Where Stilling well diameter ey recalculated stilling well diameter m Stilling well diameter og original stilling well diameter m a value dependent on antenna mode see table 7 Engauge The antenna mode can be found on tab sheet Antenna Exchange Table 7 Antenna mode value TEo1 TE TEo2 a 0 036568 0 017568 0 066952 Ephase scale error of phase ullage Exa
20. level fill in entity Reference ullage see figure 1 In case the initial level of the SmartRadar FlexLine is expected to have a serious deviation for instance because the SmartRadar FlexLine is situated near the tank wall and the product level is close to the bottom it is highly recommended to perform an ullage dip with respect to radar reference at the position of the SmartRadar FlexLine This value should then be filled in entity Radar reference ullage Near to the tank wall is when distance antenna tank wall is lt 0 2 x Tank Bottom Position for F06 antenna lt 0 15 x Tank Bottom Position for F08 antenna SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Commissioning The Accept reference command can be given when all values are entered and sent to the SmartRadar FlexLine When none of the above mentioned entities is known the Accept reference command should be given without filling any of these entities The SmartRadar FlexLine will now be put in accurate level measurement mode Upper reference position Difference radar and user ullage Radar reference radar zero a en a2uasayayy _ _ _ l aen aouaiajay sepeyy p uonisod woyog yue 9 gt Reference innage Tank bottom offset Tank zero datum plate Figure 1 Level check entities The Accept
21. product air The values from the Checklist 765 766 768 Final Assembly for minimum and maximum capacitance must be entered in the entities Minimum water capacity and Maximum water capacity e Measure the product level and calculate the immersed part e Read the measured capacitance from entity Measured water capacitance e Calculate new value for Minimum water capacity as follows Waterprobe length 2 min immersed part min new X C meas Cmin PF 26 Where Cmin new New calculated value for Minimum water capacity Cmin Minimum water capacity obtained from Checklist 765 766 768 Final Assembly Cmeas Measured water capacitance obtained from Checklist 765 766 768 Final Assembly For example Minimum water capacity 120 0 pF obtained from Checklist 765 766 768 Final Assembly Maximum water capacity 430 4 pF obtained from Checklist 765 766 768 Final Assembly Measured water capacitance 120 786 pF Waterprobe bottom position 25 mm or 0 98 inch or 0 082 ft Waterprobe length 485 mm or 19 09 inch or 1 591 ft Part No 4417764 Revision 2 SmartRadar FlexLine Professional 57 Honeywell Enraf For internal use only Calibration water bottom probe 1 Product level measured by manual dip 122 mm or 4 80 inch or 0 400 ft Immersed part becomes 122 25 97 mm or 4 80 0 90 3 82 inch or 0 400 0 082 0 318 ft 27 2 Meas
22. reference command doesn t adjust Tank bottom position so this entity should be set manually to approximately the correct value within 0 1m Instead entity Tank bottom offset is adjusted Innage is calculated as Tank bottom position Tank bottom offset Radar Ullage 1 So in the configuration of figure 1 where tank zero is above the tank bottom the value of Tank bottom offset is negative When Radar reference ullage and either Reference ullage or Reference innage are set the SmartRadar FlexLine will automatically calculate the difference between radar reference and the upper reference position and store this value in entity Difference radar and user ullage When an Accept reference command will be given in the future the SmartRadar FlexLine will automatically use this value to calculate Radar reference ullage Part No 4417764 Revision 2 SmartRadar FlexLine Professional 3 Honeywell Enraf For internal use only Commissioning So when Difference radar and user ullage is available there is no need to perform an additional ullage dip at the position of the SmartRadar FlexLine Difference radar and user ullage is the difference between radar and user reference So in the configuration of figure 1 where upper reference is above radar reference the value of Difference radar and user ullage is negative Manual dip z no possible yes Difference radar and user ullage avai
23. Heimdall diagram with lt VALID gt part If there is no lt VALID gt part at all the SmartRadar FlexLine will not be able to return to accurate level measuring mode at all In this case only an Accept Reference command will get the SmartRadar FlexLine into the lt Guarding gt state Note From software version A1140 the SmartRadar FlexLine stores information acquired from the Accept Reference command This information is used to return to accurate level measuring mode when the radar is around the same level where the Accept Reference command was given even when there are no lt VALID gt parts at all SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Diagnostics Figure 13 shows a Heimdall diagram where part of the table is lt VALID gt green and part of the table is lt AMBIGUOUSs red In the lt AMBIGUOUS part of the table the differences are still recorded but there s no reference available for the accurate level To be able to get into the lt Guarding gt the ullage needs to get into a high quality lt VALID gt part of the Heimdall table High quality means that the lines are within 15mm from each other In this example the parts between 5 0 5 3 m and 6 7 7 0m are high quality and the part between 5 3 6 7 m is poor quality When there are no high quality lt VALID gt elements the only possibility to get the gauge into the lt Guarding gt state is an Accept ref
24. MPT element position mode is set to Automatically default the FIl VT software calculates the element positions from the entities Sensor length Number of elements and Lowest element offset This method can be used when the elements are placed equidistant If that is not the case the element positions must be entered manually Then MPT element position mode must be set to Manually The element positions can be entered in entity RTD element position The entity MPT element position mode is located on Engauge tab sheet Board specific and can be set to e lt Automatically gt default e lt Manually gt The entity RTD element position is located on Engauge tab sheet Product temperature and is a value ranging lt x x x x gt floating point format Default value is lt 0 gt Note Only actually used elements to be entered Element offset When the element positions are automatically calculated each element can be given an offset to this automatically calculated position The entity Element offset is located on Engauge tab sheet Board specific and is a value ranging lt x x x x gt floating point format Default value is lt 0 gt SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf MEASURED DATA Average product temperature The following measured calculated date is available On Engauge tab sheet Board specific Table 12 Measured da
25. PS too many peaks Weakest peaks are ignored detected in reflection diagram 1327 EPS raw data clipping at the Set Automatic gain to lt True gt or adjust top Manual gain 1328 EPS raw data clipping at the Set Automatic gain to lt True gt or adjust bottom Manual gain 1329 EPS raw data clipping atthe Set Automatic gain to lt True gt or adjust top and bottom Manual gain 1336 EPS no product peak found Check thresholds in reflection diagram 1338 EPS too many peaks Weakest peaks are ignored detected in differential spectrum 1349 Radar level end switch exceeded 1357 Level exceeds maximum Minimum ullage has been exceeded measuring range lt BAD gt health status can only be reset by CLEAR_OVERFILL command when level is below minimum ullage Engauge e The error warning message can be found in the health status code of the primary and secondary value on the product level tab sheet From software version A1130 e The Product level tab shows a history of the last 10 occurred warning statuses lt UNCERTAIN gt and error statuses lt BAD gt SmartView e On the SmartView the error number can be found in the commissioning menu by selecting the TII XR board The error number is found behind the product level entry SmartRadar FlexLine Professional For internal use only Part No 4417764 Revision 2 Honeywell Enraf GENERAL Average temperature amp Water level measurement This section de
26. Radar FlexLine provides ullage dependant compensation on ullage The ullage correction table is specifically intended for different sections of stilling wells that have different diameters but is generally usable To enable the ullage correction table corresponding Distance and Correction fields must be filled so no switch has to be enabled The Correction field contains an offset value that will be applied at the ullage that s entered in the corresponding Distance field When the ullage correction table has 2 or more entries filled the compensation at ullages in between will be linearly interpolated see figure 8 As soon as a Distance element is found to be zero it is assumed to be the end of the ullage correction table Compensation ee Ullage Figure 8 Graphical view of ullage correction table compensation Part No 4417764 Revision 2 SmartRadar FlexLine Professional 17 Honeywell Enraf For internal use only 18 Compensations Note Actually the SmartRadar FlexLine has two ullage correction tables one for phase ullage and another for PSD ullage see Diagnostics Heimdall table The one for phase ullage is the most important since this one is used when the SmartRadar FlexLine is in accurate level measurement mode It can be found on the Compensation sheet The one for PSD ullage can be found on the Advanced sheet It is advised to use the PSD ullage when a stilling well has
27. SmartRadar Flexline Enraf Service manual professional Copyright 2010 2013 Enraf BV All rights reserved Reproduction in any form without the prior consent of Enraf BV is not allowed This manual is for information only The contents descriptions and specifications are subject to change without notice Enraf BV accepts no responsibility for any errors that may appear in this manual The warranty terms and conditions applicable in the country of purchase in respect to Enraf BV products are available from the supplier Please retain them with your proof of purchase Table of Contents GENERAL vies st feces iaae echt iain etd a a a aa aa 1 GOMMISSIONING avzekssteetindesceubesevence taseelsiyadeesteed aaa ei 2 Level start up Tab sheet Product level 0 eceseeeeeeeeeeeeees 2 Level check Tab sheet Product level ceceeeeeeeeeeee eee eneeeees 2 Alarm settings Tab sheet Product level eeeeeeeeeeeeeeees 6 Alarm loop checking Tab sheet Product level eeeeee es 6 Manual overwrite Tab sheet Product level ceeeeeeeeeeeee eee 6 COMPENSATIONS TAB SHEET COMPENSATION oseese 7 Output fillers oriei craneae enii sevens need ET ARER EE 7 Verification pin compensation 6 eee cece cece eee eee et ee eee teen ee enees 10 Linear compensation 2 0 ccee cece cece eee ec KAEDA ANARAN NAAA 10 Tank shell compensation Gauge reference compensat
28. Water threshold VWaterprobe bottom position Tank zero Figure 26 Water threshold The entity Water threshold is located on Engauge tab sheet Water level and is a value ranging lt x x x x gt floating point format Default value is lt 0 01 gt Part No 4417764 Revision 2 SmartRadar FlexLine Professional 53 Honeywell Enraf For internal use only 54 MEASURED DATA Water level The following measured calculated date is available On Engauge tab sheet Water level Table 16 Measured data water level Name Explanation Measured water capacitance Indicates the measured capacitance of the water probe The value must be in range between Minimum water capacity and Maximum water capacity units pF SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf CALIBRATION Water bottom probe Make sure the VITO water and temperature probe is installed properly refer to installation guide VITO Factory calibration values for the Maximum water capacity and Minimum water capacity are listed on the Checklist 765 766 768 Final Assembly delivered with every VITO probe The factory calibration value for the Minimum water capacity is obtained by a measurement in air The measured capacitance depends on the dielectric properties of the product The dielectric constant for air is 1 A general value for dielectric constant of oil products is in the area of 1 8 2 5 For a 0
29. a fields containing the number of HART counter communication retries with the VITO Interface unit HART detected addresses The VITO MTT and VITO MRT Interface unit have HART address 5 the VITO LT Interface unit has HART address 6 HART detected device The detected type of temperature probe connected to the VITO Interface unit VITO standard deviation A floating point number containing the standard deviation on 20 resistance measurements on one of the probe wires Should be lt 0 5E 10 VITO MTT resistance PT100 The measured Pt100 resistance of the VITO MTT of VITO LT probe units Q Part No 4417764 Revision 2 SmartRadar FlexLine Professional 51 Honeywell Enraf For internal use only 52 MEASURED DATA Average vapour temperature The following measured calculated date is available On Engauge tab sheet Vapour temperature Table 15 Measured data average vapour temperature Name Explanation Lowest selected element The lowest selected temperature element for average vapour temperature calculation Element in calculation An array of 16 data fields with information which elements are used for average vapour temperature calculation SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf COMMISSIONING Water level Water threshold The water threshold default 0 01 m is a distance that minimal needs to be covered with water before a water level is indicated
30. ated using equation 11 see Scale error on stilling well For example the slope in the Heimdall diagram of figure 14 is approximately 4 mm on 20 m the average slope of line 1 over the tops and line 2 under the bottoms The slope of phase ullage is then approximately 2 mm the scale error will be approximately 20 0 002 Ephase 99 1 0001 10 inne 15 coe Ther Angra ot graer wet hy Iganga DET hew P Figure 14 Heimdall diagram of a 12 stilling well application with wrong Stilling well diameter line 1 and line 2 are not shown on the Heimdall diagram Part No 4417764 Revision 2 SmartRadar FlexLine Professional 31 Honeywell Enraf For internal use only Diagnostics Heimdall diagram on stilling well sections with different diameter Figure 15 shows the Heimdall diagram of a stilling well application where different sections of the stilling well have slightly different inner diameter This shows up in the diagram as sections with different slope Again it is strongly advised to use hand measurements to determine the size of the slope Different inner diameters can t be fixed by changing the inner diameter of the stilling well Instead Ullage Correction Tables must be used For example there seems to be a slope in the Heimdall diagram of approximately 4 mm from 11 to 22 m The error in phase ullage is half of that so it will be approximately 2 mm at 22m The error in PSD ullage will be opposite to that so i
31. atic exclusion all submerged elements above the temperature element exclude zone without lowest element e Dynamic exclusion dynamical with smoothing lowest element will be used at low product levels only Part No 4417764 Revision 2 SmartRadar FlexLine Professional 47 Honeywell Enraf For internal use only Commissioning Average temperature No exclusion Static exclusion Dynamic exclusion T6 T6 T6 TS TS TS PL PL PLy T4 T4 T4 T3 T3 T3 PL 2 PL3 T2 T2 T2 Smoothing level PL PL PL PL Temperature element exclude zone Ti Ti Ti PL Lowest element offset PL4 Lowest element offset PLs Lowest element offset Tank zero Tank zero Tank zero Figure 24 Low element usage Average product temperature Average product temperature Average product temperature calculation uses at calculation uses at calculation uses at Product level 1 PL4 Product level 1 PL4 Product level 1 PL4 T1 T2 T3 and T4 T2 T3 and T4 T2 T3 and T4 Product level 2 PL3 T1 Product level 2 PL3 Product level 2 PL3 T2 Product level 3 PL3 Low level behavior Product level 3 PL3 Low level behavior setting on T2 smoothing using T1 and T2 setting on T1 Product level 3 PL3 Product level 4 PL4 T1 temperature fail Product level 5 PL5 Product level 4 PL3 Low level behavior temperature fail setting on T1 With Dynamic exclusion a smooth change is realized when switching from T2 to
32. ction Calculate a regression line from the level where the tank shell deviation is approximately 0 5 mm In this example the regression line is calculated from 8 meters level till the maximum level Then the Hydrostatic deformation factor becomes 0 3869 mm m The Hydrostatic deformation minimum innage is the point where the regression line crosses the X axis in this example at 8 1435 m SmartRadar FlexLine Professional For internal use only Part No 4417764 Revision 2 Honeywell Enraf Compensations Level end switch When the level end switch is enabled innage is limited to a minimum value E g default innage will not be lower than 0 0 when the switch is enabled When innage is truncated the weights and measures status is turned off A hysteresis is implemented to prevent frequent toggling of the weights and measures status To enable the level end switch the 8 switch of Compensations and features should be set to True and the following entities should be set Level end switch This entity determines the level threshold When innage is lower than Level end switch innage is truncated For example when Level end switch 0 10 m innage will be truncated when it gets below 0 1 m Level end switch hysteresis limit Hysteresis limit for the weights and measures status When innage is truncated ullage will be truncated as well to the corresponding ullage value Ullage Correction Table The Smart
33. d the cause There can be three e The SmartRadar FlexLine is not able to locate any peaks in the power spectrum In this case the entity No peaks counter is large This can be caused by heavy turbulence of the product level or by poor settings of peak selection entities Check the peak selection entities for high thresholds Obstructions and zones and check the reflection diagram The SmartRadar FlexLine switches to another peak regularly In this case the entity Peaks switched counter is large There are most likely peak selection problems Refer to the peak selection part of the diagnostics The phase guarding threshold is exceeded In this case the entity Aphase above threshold counter is large This is caused by heavy turbulence of the product level From software version A1140 it is also possible that the entity Nr of sum Aphase above threshold is large This entity is located at the bottom of the tab sheet The question is whether the SmartRadar FlexLine is able to get back into guarding This depends on the amount of valuable data in the Heimdall Table see Heimdall table Heimdall table The Heimdall table contains the minimum and maximum differences between accurate and PSD ullage The Heimdall table provides the reference for the accurate level measurement mode It s also a valuable diagnostic tool Part No 4417764 Revision 2 SmartRadar FlexLine Professional 27 Honeywell Enraf For internal use only 28
34. dL sec 90 99 8 22 15 5 dL sec 200 99 9 32 25 dL sec 400 99 95 45 38 dL sec 750 Part No 4417764 Revision 2 SmartRadar FlexLine Professional 9 Honeywell Enraf For internal use only Compensations 10 Verification pin compensation Similar to basic Linear compensation With the linear compensation ullage can be adjusted by a gain factor and an offset CompensatedUllage Gain Ullage Offset 2 To enable the linear compensation the 3 switch of Compensations and features should be set to True and the following entities should be set Primary value gain and Primary value offset Note Despite their names Primary value gain and Primary value offset are NOT affecting innage primary value directly The compensation is applied to ullage Engauge Primary value gain and Primary value offset are to be found on the tab sheet Product level The switch is to be found on tab sheet Compensations Tank shell compensation Gauge reference compensation Thermal expansion of the tank shell or stilling well influences the reference position of the SmartRadar A compensation method shall be applied so that the total deviation for a temperature change of 10 C falls within the maximum permissible error for the installed SmartRadar according to OIML R85 Radar ullage is influenced by thermal expansion of the tank shell but this distance is a true measured value Hence the compensation is a
35. defines how to determine temperature and temperature status in case the 16 product level drops below the lowest element used in temperature calculation rs The low level behaviour can be set to e Fail default e Use last valid temperature e Use lowest element T1 e Use second element T2 j Lowest element Figure 23 Low level behaviour Low element usage According to international recommendations API and ISO for temperature measurement in storage tanks temperature shall be measured starting from 1 m 3 ft above the tank bottom The VITO probes model C 764C 766C 767C and 768C fulfill this requirement by having the first element at 1 m from the probes bottom end However when tanks are operated at a lower level than 1 m 3 ft an extra spot can be located at a lower level which then is only used when the level drops below 1 m 3 ft The spot below 1m 3 ft shall not be used for the average temperature measurement when the product level is above 1 m 3 ft For that purpose VITO probes model D 764D 766D 767D and 768D do have one additional element at the bottom of the probe For the VITO probes model D and MPT Multiple Spot probes with a temperature element below 1 m the low element usage needs to be configured The low element usage defines which elements are included in the temperature calculation There are the following choices e No exclusion default all submerged elements are used not API compliant e St
36. devices reads RTD Part No 4417764 Revision 2 SmartRadar FlexLine Professional 59 Honeywell Enraf For internal use only 60 Additional settings for 365 temperature and water probe Function priority number As each of the FII VT boards can measure the same data product temperature vapour temperature and water level the temperature priority function must be set lower on the FII VT board which is used to measure the water level and the water level priority function must be set lower on the FIl VT board which is used to measure the temperature Enter the Function priority entities according the table below table 17 Table 17 Function priority Engauge Tab sheet Function priority Function priority for FII VT board for Fll VT board measuring water measuring temp Product temperature 126 127 Vapour temperature 126 127 Water level 127 126 The entity Function priority is located on the Engauge tab sheets Product temperature Vapour temperature and Water level It is a value ranging lt 0 255 gt default value is lt 127 gt To set the function priority lower any number less than 127 will do This ends the additional settings for the 365 temperature and water probe Continue the other normal commissioning settings for temperature and water measurement according the following section in the Service manual SmartRadar FlexLine e Product temperature section 6 10 3 2 1 e Vapour temperatur
37. e section 6 10 3 2 2 e Water level section 6 10 3 1 3 SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf For More Information To learn more about Honeywell Enraf s solutions contact your Honeywell Enraf account manager or visit www honeywellenraf com Americas Honeywell Enraf Americas Inc 2000 Northfield Ct Roswell GA 30076 USA Phone 1 770 475 1900 Email enraf us honeywell com Europe Middle East and Africa Honeywell Enraf Delftechpark 39 2628 XJ Delft The Netherlands Phone 31 0 15 2701 100 Email enraf ni honeywell com Asia pacific Honeywell Pte Ltd 17 Changi Business Park Central 1 Singapore 486073 Phone 65 6355 2828 Email enraf sq honeywell com Honeywell Enraf 4417764_Rev 1_ENG April 2013 2013 Honeywell International Inc
38. e must again be set to level with the Accept reference command see Level check When the SmartRadar FlexLine was in lt Recovery gt mode during the measurements the scale error of PSD ullage is measured The scale error of phase ullage can be calculated by 1 h phase E psp 14 SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf ERRORS AND WARNINGS The status code of the Primary value or the Secondary value can display an error status lt BAD gt or a warning status lt UNCERTAINS gt Table 8 shows the error numbers and messages that can occur at start up Table 9 shows the operational error numbers and messages Table 8 Initial error messages Error number Error message Description 1297 Maximum safe fill not set 1311 EPS centre frequency out of range 1315 EPS double entries in ullage correction table 1334 EPS conflict between Radar application and Antenna mode Stilling well application but no antenna mode selected or free space application and TE01 or TE02 mode selected 1335 EPS stilling well diameter out of range Stilling well diameter out of allowed range 0 04572 1 0 m 1355 Temperature calibration table empty Empty temperature calibration table SmartRadar has not been calibrated or NOVRAM has been cleared 1356 Maximum safe fill not within measuring range
39. eak in the differential spectrum Diff rel to highest peak threshold default 20 dB See also the chapter about Zones and thresholds for a description of relative thresholds From software version A1130 The relative threshold is always valid over the complete measuring range but the actual value depends on the position of the strongest peak When the strongest peak is positioned in the antenna zone or product zone the value is determined by entity Diff rel to highest peak threshold when the strongest peak is in or beyond the bottom zone the threshold is determined by entity Diff rel to highest peak threshold BZone default 20 dB Note The differential spectrum is visualized in the so called differential spectrum diagram or high resolution differential spectrum diagram Figure 11 shows an example of a differential spectrum diagram The differential spectrum diagrams can be made and viewed by the Enraf service tool Engauge The differential diagram shows only one threshold which is the highest of the absolute threshold and the relative threshold that is used The high resolution diagram contains 4 times as much data as the ordinary diagram providing more details SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Diagnostics Differential Spectrum Diagram 04 GN ce G 990 10 Tank 990 10 90 000 l Created 2011 04 07 13 31 42 Devi l 53 9 oj g 80 000 5
40. ected connected range Fall connected range not connected element skipping range High probe temperature range Valid Valid Low probe temperature range element shortcut an shortcut Upper Fan Upper Fail shortcut range shortout range Figure 22 Range checking and element skipping If the range check is disabled With the range check enabled this fail default the temperature range decreased to lt Low probe element is set to fail if a temperature range short cut or 2High resistance sUpper shortcut probe temperature range interrupted range short cut or 2Lower The area between Low probe temp not connected range range Upper shortcut range and interrupted is detected High probe temp range Lower not connected range is used as element skipping range If a temperature element is found within the element skipping range it will not be used for average product temperature calculation or average vapour temperature calculation The maximum number of skipped elements is 2 default 1 Part No 4417764 Revision 2 SmartRadar FlexLine Professional 45 Honeywell Enraf For internal use only Commissioning Average temperature The entities Temperature range check Element skipping and Maximum skipped elements are located on Engauge tab sheet Product temperature e The Temperature range check can be set to lt enable gt or lt disable gt default e The Element skipping can be set to lt enable
41. ement position mode seesssseesssrresesernesrsnnnsrnnnnnnnnnnnnnnnennnnnnnnnna 50 Element offs renani E eee ee ee ae 50 MEASURED DATA Average product temperature cceceeeeseeeees 51 MEASURED DATA Average vapour temperature cceceeeeneeeees 52 COMMISSIONING Water level cccccceceeeeeeeeeeeeeceeeeeeeseeeeeeeaeeeeaes 53 MEASURED DATA Walter level ccccceeeeeeeeeeeeeeeaeeeeneeeseneeeseaeeteaes 54 CALIBRATION Water bottom probe c ecseceeeeeeeeeeeeseeeeeeeeeeeeeeeeees 55 ADDITIONAL SETTINGS for 365 temperature and water probe 59 SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf GENERAL The SmartRadar FlexLine implements amongst others the function product level Because of complexity functionality is accommodated by several tab sheets in Engauge Next to the standard available tab sheet Product level the following tab sheets also belong to the function product level Compensations Obstructions and zones Antenna Exchange Peak Selection Heimdall Advanced and Miscellaneous Part No 4417764 Revision 2 SmartRadar FlexLine Professional 1 Honeywell Enraf For internal use only COMMISSIONING Level start up Tab sheet Product level Similar to basic In addition Installation on oversized double sized stilling well The SmartRadar FlexLine is configured
42. erence command Heimdall Diagram Created 2007 09 26 16 41 05 Device FlexLine Tank Demo m b o 2 2 83 ead ab ft 0 025 4 000 5 000 6 000 7 000 8 000 9 000 10 000 11 000 12 000 13 000 14 000 15 000 16 000 m This diagram is generated by Engauge 2007 Enraf B V Figure 13 Example of Heimdall diagram with lt VALID gt and lt AMBIGUOUS gt part When an Accept reference command is given while the gauge is in the lt Recovery gt state all lt VALID gt parts of the table will be cleared and all lt AMBIGUOUS gt parts will be made lt VALID gt When it s impossible for the SmartRadar FlexLine to build up a proper Heimdall table due to too much turbulence it is advised to build up a Heimdall table by slowly emptying the tank Changes to the heimdall table The Heimdall table can be changed by certain user actions e Accept reference command when in the lt Guarding gt state All non lt EMPTY gt elements will be set to lt VALID gt e Accept reference command when in the lt Recovery gt state All lt VALID gt elements will be set to cleared lt EMPTY gt All lt AMBIGUOUS gt elements will be set to lt VALID gt Part No 4417764 Revision 2 SmartRadar FlexLine Professional 29 Honeywell Enraf For internal use only 30 Diagnostics e Change certain entities The Heimdall table will be cleared when the following entities are changed At the Product level tab sheet and on the SmartV
43. es eee eees 30 Heimdall diagram on a stilling well cceeeeeeee cence eee eeeeeeeees 30 Heimdall diagram on stilling well sections with different diameter 32 Raw data dia grant hectic iecciiceaciinnd tiie aaeetient eee eee 33 SCALE ERROR ON STILLING WELL 00 c ee cee cece ceeeeeeeeeeeeeeeeeaeeneneees 34 ERRORS AND WARNINGS ccceeeeceeeeeeeeeeeeeeeecaeeeseaeeseneeeesaeeseenees 37 Part No 4417764 Revision 2 SmartRadar FlexLine Professional iii Honeywell Enraf For internal use only Table of Contents GENERAL Average temperature amp Water level measurement 39 COMMISSIONING Average temperature cccceceeeseeteeeeeeteeeeneeeens 40 Water awarenesSS 2 eee cece cee cent eee eee e ene ne a nena ns eeeen tea ee nentes 40 Gauge temperature scale cccceceeceeeee eee ee eceeeeteeteeeeeeeeees 40 Median filter for each calculated spot temperature eeeeeeeeee 41 Averaging filter for product temperature and vapour temperature 41 Averaging temperature calculation method for product and vapour TEIMPCVALUIS sesiniac ath cendcdnamaeaterdaah tnebeat ate 42 Range checking and element skipping ce eeeeeeeeeeeeeeeeeeeeaeeeeeeenaes 45 Element WINING lt c ceistcier niece eevee ended AR 46 Low level behaviour cceeeeeccceeeeeeeceeeeeeeeeeeeeeeaeeaeeeeneaseaeeeseseeasenentaes 47 Low element USAGE sicc R 47 MIT DO copiers A aAA E EAEE 49 MPT el
44. evel The SmartRadar FlexLine automatically recognizes all kinds of reflection patterns in order to find the correct product peak But whenever necessary the user can influence the peak selection process by changing certain settings Note The power spectrum is visualized in the so called reflection diagram ma or high resolution reflection diagram Figure 10 shows an example of a reflection diagram The reflection diagrams can be made and viewed by the Enraf service tool Engauge The high resolution diagram contains 4 times as much data as the ordinary reflection diagram providing more details Part No 4417764 Revision 2 SmartRadar FlexLine Professional 19 Honeywell Enraf For internal use only 20 Diagnostics Zones and threshold settings The primary parameter to influence the peak selection is Relative to highest peak threshold This is a threshold that s relative to the amplitude of the strongest peak in the power spectrum The SmartRadar FlexLine will ignore all peaks that are Relative to highest peak threshold dB weaker than the strongest peak For instance if the strongest peak is 42 dB and Relative to highest peak threshold is at the default value of 16 dB all peaks weaker than 42 16 26 dB are ignored The threshold is valid over the complete measuring range For complex situations where the peak selection is not able to find the correct product peak zones can be used to add additional thresholds For peak se
45. g state Apart from initialization the phase guarding state is lt Guarding gt lt Turbulence gt or lt Recovery gt phase guarding state is lt Guarding gt When the phase guarding state is lt Guarding gt it means the SmartRadar FlexLine is in accurate level measurement mode Product level should be accurate Check commissioning parameters such as Stilling well diameter radar application and Compensations If these are correct check the Heimdall table for irregularities see Heimdall table phase guarding state is lt Turbulence gt When the phase guarding state is lt Turbulence gt it means the product level is too turbulent to measure accurately This can be caused by fast pumping actions or bad weather conditions such as heavy winds on floating roof tanks especially when the level is low It can also be caused by unstable peak selection While the phase guarding state is in lt Turbulence gt it is important to find the cause There can be three e The SmartRadar FlexLine is not able to locate any peaks in the power spectrum In this case the entity No peaks counter is increasing steadily This can be caused by heavy turbulence of the product level or by poor settings of peak selection entities Check the peak selection entities for high thresholds Obstructions and zones check the reflection diagram and check for large variations of the Product peak amplitude Advanced The SmartRadar FlexLine switc
46. hes to another peak regularly In this case the entity Peaks switched counter is increasing slowly There are most likely peak selection problems Refer to the peak selection part of the diagnostics The phase guarding threshold is exceeded In this case the entity Aphase above threshold counter is increasing steadily This is caused by heavy turbulence of the product level From software version A1140 it is also possible that the entity Nr of sum Aphase above threshold is increasing This entity is located at the bottom of the tab sheet SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Diagnostics When the SmartRadar FlexLine is in lt Turbulence gt it is not possible to perform an Accept Reference command or get the gauge in accurate level measurement mode in any other way Check the Heimdall table for further diagnostics see Heimdall table phase guarding state is lt Recovery gt When the phase guarding state is lt Recovery gt it means the SmartRadar FlexLine is not in accurate level measurement mode If the SmartRadar FlexLine has once been put in lt Guarding gt by the Accept reference command it must have been in lt Turbulence gt at least once Check entity Turbulence state counter to see how often the SmartRadar FlexLine has been in lt Turbulence gt When the phase guarding state has entered the lt Turbulence gt state often it is important to fin
47. iew Stilling well diameter At the Antenna Exchange tab sheet all entities except Antenna type Minimum measurable distance At the Compensations tab sheet Ullage correction table At the Advanced tab sheet PSD ullage correction table Center frequency e Clear Heimdall table command The Heimdall table will be cleared e Set entities to default command The Heimdall table will be cleared Upgrading the TII XR with new software will NOT clear the Heimdall table Heimdall diagram as a diagnostics tool The Heimdall diagram can be a valuable diagnostic tool and provides a snapshot of all difficulties the SmartRadar FlexLine is facing When the Heimdall diagram has both lt VALID gt and lt AMBIGUOUSs parts the dividing line tells where the problems with turbulence or peak selection occur The shape of the Heimdall diagram tells a lot about the phenomena the gauge has encountered Obstructions can be easily identified by their typical pattern see figure 12 between 5 and 7 m as well as the influence of the tank wall see figure 12 between 7 and 16 m Heimdall diagram on a stilling well A special point of attention is the inner diameter of the stilling well The propagation speed of the microwaves and hence the level measurement depends on the inner diameter of the stilling well Entity Stilling well diameter holds the inner diameter of the stilling well When the real value of the inner diameter
48. illing well is fixed at the top of the tank then select the values for entity items Tank shell vapour ambient ratio from the tank type without stilling well Part No 4417764 Revision 2 SmartRadar FlexLine Professional 11 Honeywell Enraf For internal use only Compensations Tank shell temperature is calculated as Tank shell vapor ambient ratio x Tank shell used vapor temperature 1 Tank shell vapor ambient ratio x Tank shell used ambient temperature 3 Tank shell compensation is calculated as follows Tank bottom position Primary Value x Tank shell thermal expansion coefficient x Tank shell temperature Tank shell reference temperature 4 The flowchart in figure 5 shall be followed to enable the gauge reference compensation tank shell compensation Vapour temperature available Enter manual vapor temperature yes value and status in entity Tank shell manual vapor temperature Ambient temperature manual Tank shell ambient temperature selection internal Enter manual ambient temperature value and status in entity Tank shell manual ambient temperature Ambient tempersture internal Enter value in entity Tank shell vapor ambient ration refer to table 4 Enter value in entity Tank shell thermal expansion coefficient Enter value in entity Tank shell reference temperature Set 4 switch of entity Compensation and features to
49. ion 10 Hydrostatic deformation compensation c ceceeeeeeeee ee ee eee en 13 Level end switch 0 0 2 cc cece cece cece e eee ee ee ee eae ee eens eeeaeeteeneeeeetaeaeas 17 Ullage Correction Table 0 ccccccccee eee ee eee ee eeeee esse eseeeeeeeeeeeees 17 Maximum safe fill 0 2 2 cece ec ee ec ee cece e eee cece ee eee cena eaeaeeeeeeeeaeeeaees 18 DIAGNOSTICS iiinis inann ne a nia iaria a teed 19 Peak selection Tab sheets Peak Selection Obstructions and zones POVANCE E P S E E E 19 Zones and threshold settings cccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 20 Differential Spectrum siisii inienn AAAA Nia 22 Additional SettingS serissirrsmrnrani irinn ei niniin EAR 23 DiagnosticrentitiS ce ccteccntivs irni EE 24 Classification info cccccccececeeee eee ee ee eceeeee eee eeeeeeeeeeneeeeeanes 25 Phase guarding Tab sheet Heimdall cceceeeeeeeeeee ee eeeee ened 26 phase guarding state is lt Guarding gt ccceeeeeeeeeeeeee tees 26 phase guarding state is lt Turbulence gt eee eeeeeeeeee ee ee eeees 26 phase guarding state is lt RECOVErY gt eceeeeeeeeeeee ee eeeee teen ee 27 Heimdall table cccicccctecssssnctinsdocatuhanedsysaeasatanedad dodecieaaaaeaes dace 27 Changes to the heimdall table c ccceceecee eee eeeeeeeeeeeeaes 29 Heimdall diagram as a diagnostics tool ceeeeeeeeeeeee te
50. l Sensor length 8 16 m 8 52 493 ft 8 2 000 m 6 562 ft 21 The distances midways the elements L4 L2 etc can now be found L Lowest element offset Element interval 2 22 L L Element interval 22a L L Element interval 22b The values are listed in table 10 Part No 4417764 Revision 2 SmartRadar FlexLine Professional 43 Honeywell Enraf For internal use only 44 Commissioning Average temperature The volumes V4 V3 etc are found from the Tank Capacity Table The weighing factors are calculated as A 1 B V2 V1 V1 19 B 400 951 m 108 615 m 108 615 m B 2 6915 or B 2521 91 bbl 683 17 bbl 683 17 bbl B 2 6915 etc In table 10 are listed e midway distances e corresponding volumes from the Tank Capacity Table e calculated weighing factors Position oo highest element 17 m 55 774 ft iaw X X X X x y x Sensor length 8 Lo V2 2 000 m 6 562 ft r X L4 V1 1 m 3 281 ft Lowest ee element ____ offset i Pt100 reference resistor x Thermocouple Figure 21 Example weighing factor calculation sphere with VITO probe Table 10 Example of weighing factors with sphere D 18 62 m 61 089 ft and VITO probe model 767C n Level ft a ee Weighing factors 1 2 000 6 562 108 615 683 17 A 1 2 4 000 13 123 400 951 2521
51. l tanks The weighing factors are configurable hse highest selected element RTD in product low lowest element RTD in product Li position from bottom of i element RTD T temperature of i element RTD Part No 4417764 Revision 2 Honeywell Enraf Commissioning Average temperature When the Custom average temperature calculation method is selected the weighing factors must be entered As an example a Type 767C sphere with a 767C VITO LT probe With the entities frre Lowest element offset and Sensor length the distances midway the elements L4 Lo etc can be PA Vg nee calculated E w L4 p Vy ee Ngee teeters Sensor length 8 A Lowest element offset Figure 20 Weighing factors with sphere From the Tank Capacity Table the corresponding volumes V4 V2 etc are obtained The weighing factors are then being calculated as Vo V4 ow A 1 B Vv V etc 19 Example In a sphere with diameter of 18 620 m 61 089 ft a VITO probe model 767C lowest element located 1 m 3 281 ft from bottom of probe and the position of the highest element is at 17 m 55 774 ft refer to figure 21 The lowest element offset in this example is 1 m 3 281 ft Then the Sensor length is calculated as follows Sensor length Position highest element lowest element offset 17 m 1 m 55 774 ft 3 281 ft 16 m 52 493 ft 20 The element interval is calculated as Element interva
52. l there is a higher frequency which is caused by the product reflection As the antenna reflection is a reflection from nearby close to the TII XR unit inside the FlexLine its amplitude is relatively large Reflections from further away such as the product reflection have a higher frequency and are lower in amplitude A good working FlexLine always shows a low frequency component and a higher frequency component in the raw data diagram refer to figure 16 If there is an abnormality in the sinusoidal wave pattern for instance partly a straight horizontal or vertical line it is a sign the antenna fails or there is a fail in the TII XR unit of the FlexLine tear Figure 16 Example of Raw Data Diagram Part No 4417764 Revision 2 SmartRadar FlexLine Professional 33 Honeywell Enraf For internal use only SCALE ERROR ON STILLING WELL The propagation speed of the microwaves and hence the level measurement depends on the inner diameter of the stilling well Entity Stilling well diameter holds the inner diameter of the stilling well When the real value of the inner diameter differs from the setting in entity Stilling well diameter the SmartRadar FlexLine has a scale error in the level measurement It is therefore recommended to check the level reading of the SmartRadar FlexLine with some manual dips at different static levels over the full operating range When the SmartRadar FlexLine has a scale error it s important to
53. lable Measure and enter Reference innage or Reference ullage no no Difficult application Measure and enter Reference innage or Reference ullage yes Manual dip at radar position possible yes Measure and enter no Radar reference ullage Measure and enter Measure and enter Reference innage Reference innage or or Reference ullage Reference ullage Difficult application dose to the tank wall Accept reference near obstructions command stilling well antennas on inapproptiste diameter Figure 2 Overview Accept reference command Finally check Accept reference status to see if the command has been accepted If the status is lt Accept reference failed gt the SmartRadar FlexLine has probably an lt UNCERTAIN gt or lt BAD gt health status If the status is lt Accept reference not accepted gt the SmartRadar FlexLine is in the lt Turbulence gt state see diagnostics Phase guarding SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Commissioning When the tank is almost empty there s a good chance the gauge will get in the lt Turbulence gt state when the product is pumped into the tank for the first time In that case the Heimdall table won t be build up and a new Accept reference command has to be given when there s product in the tank
54. lear difference command to clear entity Difference radar and user ullage is shown as Clr usr radr ull in the command menu o Status lt Accept reference failed gt is shown as lt Fail NOK gt o Status lt Accept reference not accepted gt is shown as lt Not accp gt Part No 4417764 Revision 2 SmartRadar FlexLine Professional 5 Honeywell Enraf For internal use only Commissioning Alarm settings Tab sheet Product level Similar to basic Alarm loop checking Tab sheet Product level Similar to basic Manual overwrite Tab sheet Product level With a manual overwrite the primary value innage can be overwritten by a manual value To get a manual value Give Kill measurement command Fill in Manual overwrite and send it to the gauge To return to instrument level press Resurrect Note Manual value is only applied to the primary value innage The secondary value ullage is still an instrument value SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf COMPENSATIONS TAB SHEET COMPENSATION Compensations can be enabled or disabled by setting the appropriate switches in entity Compensations and features Table 1 Compensation switches Position Compensation or feature Default 1 False Disabled 2 Compensation by verification pins False Disabled 3 Linear compensation False Disabled 4 Tank shell expan
55. lection the tank is divided in three measuring zones where individual thresholds can be set antenna zone product zone and bottom zone In addition ten obstruction zones with individual thresholds can be programmed All these thresholds are absolute Only peaks that are stronger than these thresholds will be considered as possible product peak Figure9 Zones and thresholds Figure 9 shows the definition of the three zones Please note that the X axis is indicating ullage The zero point on the X axis represents Radar reference The antenna zone starts at Minimum measurable distance from the antenna The bottom zone is defined with respect to the tank bottom Tank bottom position The product zone is the part of the tank between antenna and bottom zone These zones are also visible in the reflection diagram see figure 10 Figure 10 also shows Relative to highest peak threshold but this threshold is not shown by Engauge up to software version A1122 SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Diagnostics Note Don t use the Bottom zone threshold to mask the reflection of the bottom unless absolutely necessary The peak selection uses the bottom reflection when present to locate the product peak when the product is near the tank bottom From software version A1130 The relative threshold is always valid over the complete measuring range but the actual val
56. lexLine Professional 55 Honeywell Enraf For internal use only 56 Calibration water bottom probe Then the of water becomes rounded off to 0 1 122 mm 25mm of water 485mm x 100 20 24a or 4 80 0 98 of water 4909 x 100 20 24b or of water ae x 100 20 240 a AD p h e vl 22 ae i ts JE 2 9 7 6 E s g ii gt sic Sie Sja GEP gt oO z 4 E ae Waterprobe S D bottom position example 25 mm P X or 0 98 of 0 087 Tank zero Figure 27 Water probe calibration The Minimum water capacity can be found as follows Cmax C meas Ce 00 pF Cmin Cmax 700 of water 100 PF 25 SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Calibration water bottom probe Where Cmin Minimum water capacity Cmax Maximum water capacity Cmeas Measured water capacitance If we assume the following numbers as an example Measured water capacitance 185 224 pF Maximum water capacity 430 4 pF obtained from Checklist 765 766 768 Final Assembly Then the Minimum water capacity becomes Minimum water capacity 430 4 ae x100 123930 pF 25a Situation 3 Probe partly covered by product and for the remaining part covered by air Refer to the figure 27 but read for the water level product level and read for the
57. mples a 10 mm error on 20 m range will give a scale error of 20 0 010 20 1 0005 a 15 mm error on 15m range will give a scale error of 15 0 015 15 0 999 Refer to figure 17 It doesn t matter whether innage or ullage levels are used When Radar Reference is at the Y axis scale error Ephase Should be larger than 1 when there s a positive slope The newly calculated Stilling well diameter will be larger than the original one Scale error Ephase Should be smaller than 1 when there s a negative slope The newly calculated Stilling well diameter will be smaller than the original one Radar Reference Figure 17 Relation between error and scale error If radar innage is used on the Y axis then the X axis represents innage Hence if radar ullage is used on the Y axis then the X axis represents ullage Part No 4417764 Revision 2 SmartRadar FlexLine Professional 35 Honeywell Enraf For internal use only 36 Scale Error on Stilling Well An example with an S10 antenna Entity Stilling well diameter is programmed as 0 254 m and the antenna mode is TEO1 At 2 m the deviation of the SmartRadar FlexLine is 3 mm At 19 m the deviation is 2 mm The new Stilling well diameter is calculated as 17 0 005 phase a7 1 000294 12 Stilling well diameter __ 0036568 nc 76 awit 2 1 1 000294 x i e 0 254 Note After the new stilling well diameter is programmed the SmartRadar FlexLin
58. n echo multiple reflection Confidence level The probability of that particular assumption Some examples RFL ECH 100 This peak is part of a multiple reflection It is identified as an echo of the product peak with a 100 probability RFL PRD 100 This peak is part of a multiple reflection It is identified as the first of a series of peaks with a 100 probability BSP PRD 082 This peak has no relation to other peaks It is identified as a possible product peak with an 82 probability BOT PRD 100 This peak is part of a product and bottom pattern It is identified as the product reflection with a 100 probability BOT BOT 100 This peak is part of a product and bottom pattern It is identified as the bottom reflection with a 100 probability OBS OBS 100 This peak is in an obstruction zone and is below the threshold of the obstruction zone OBS OBS 050 BSP PRD 009 This peak is in an obstruction zone but is above the threshold It is also identified as a possible product peak with a 9 probability Part No 4417764 Revision 2 SmartRadar FlexLine Professional 25 Honeywell Enraf For internal use only Diagnostics Phase guarding Tab sheet Heimdall The SmartRadar FlexLine is able to measure level accurately even under difficult circumstances like close to the tank wall near obstructions such as heating coils or in stilling well with the wrong diameter But the SmartRadar FlexLine needs to be in the proper phase guardin
59. nge is 0 7 mm sec 0 03 sec the overshoot will be approximately 2 9 0 7 2 mm 2 9 0 03 0 09 while the noise reduction will be approximately 7 The output of the filter will return to within 0 1 mm 5 of 2 mm 0 004 5 of 0 09 of the actual level in approximately 30 seconds both at the start and end of the pumping Only one of both filters can be selected as output filter When both filters are enabled both switch 6 and 7 are true only the moving averaging filter is activated Table 2 Filter characteristics of moving averaging filter dL actual displacement per second Filter Approximate Maximum lag Maximum lag averaging noise during during constant reduction factor pumping sec pumping distance 50 1 4 0 1 0 1 dL sec 70 1 8 0 25 0 25 dL sec 90 3 1 1 dL sec 95 4 5 2 2 dL sec 98 7 5 5 5 5 dL sec 99 10 11 11 dL sec 99 5 14 22 22 dL sec 99 8 22 55 55 dL sec 99 9 32 110 110 dL sec 99 95 45 220 220 dL sec Table 3 Filter characteristics of predictive moving averaging filter dL actual displacement per second Filter averaging Approximate noise Maximum Time to return within constant reduction factor overshoot 5 of overshoot sec 50 1 4 0 1 dL sec 1 8 70 1 8 0 2 dL sec 3 3 90 3 0 7 dL sec 8 3 95 4 5 1 3 dL sec 14 98 7 2 9 dL sec 29 99 10 4 9 dL sec 50 99 5 14 8 2
60. nts with one spot element MPT Multiple Pt100 spot elements up to 14 elements with 2 common wires RTD Resistance Temperature Detector up to 3 RTD s in 3 wire configuration SmartRadar FlexLine Professional 39 For internal use only 40 COMMISSIONING Average temperature Water awareness If a water probe is connected to the SmartRadar FlexLine from a combi probe or a separate water probe the measured water level will be used to check if individual temperature elements are located in the water If such elements are found they will be excluded from average product temperature calculation This is valid for VITO probes 864 MTT MPT Multiple Spot elements and RTD s This check cannot be realized with MRT s Variable Length Elements Gauge temperature scale The FIl VT module supports both international temperature scales IPTS 68 International Practical Temperature Scale of 1968 and ITS 90 International Temperature Scale of 1990 The scales apply to C and Kelvin The temperature difference between the two scales is illustrated in figure 18 0 04 p 0 02 1 nN D a ew 0 r T K w N 2 N e 0 02 N g o 4 gt 4 ee 0 04 0 06 t 4 200 100 0 100 200 300 Temperature PC Figure 18 Differences between ITS 90 and IPTS 68 The current element formulas with IPTS 68 coefficients are used and an additional correction is applied to convert to ITS 90 As the ITS 90 scale is the most recent one it i
61. ormat Default value is lt 0 9 gt Part No 4417764 Revision 2 SmartRadar FlexLine Professional 41 Honeywell Enraf For internal use only Commissioning Average temperature Averaging temperature calculation method for product and vapour temperature This is valid for RTD s MPT Multiple Spot elements VITO probes and MTT With entity Temperature calculation method under Engauge tab sheet Product temperature a selection can be made between the following calculation methods lt Standard gt lt Enhanced gt default lt Custom gt Standard Product Level Product Level RTD Enhanced Custom Product Level List Lise Figure 19 Averaging algorithms hse __A B P Ta Hite 16 Tap gt TInt in i Tap Regt ht A B P 2 2 Lise Liow i 0 18 17 Standard averaging A straight forward averaging is applied i e Enhanced averaging The weighing of the individual spots depends on the height of the Custom averaging Includes weighing factors A B etc for each individual number of submerged product level temperatures divided by number of submerged elements Where Tap Average product temperature T Temperature of element RTD 1 T Temperature of element RTD 2 A Weighing factor of element RTD 1 B Weighing factor of element RTD 2 42 SmartRadar FlexLine Professional For internal use only spot Intended to be used for non cylindrica
62. pplied to radar innage The compensation only takes expansion of the vapour space area of the tank shell into account The tank shell temperature is not a direct measured parameter It will therefore be calculated from vapour and ambient temperature If the SmartRadar FlexLine is equipped with the average temperature option the vapour temperature is measured and used in the gauge reference correction calculations If this temperature value is not available then a manual value is used So for the vapour temperature the following quantity is used in decreasing priority Distributed vapour temperature Tank Shell manual vapor temperature Tank shell last valid vapor temperature SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Compensations As ambient temperature the Board temperature can be selected by entity Tank shell ambient temperature selection If this entity is set to Ambient temperature manual the following quantity is used for the ambient temperature in decreasing priority Tank Shell manual ambient temperature Tank Shell last valid ambient temperature To enable the tank shell compensation the 4 switch of Compensations and features should be set to True and the following entities should be set Tank shell thermal expansion coefficient Expansion coefficient of the tank shell material default value is 10x10 m C Carbon steel 12x10 m C
63. s therefore the preferred selection The entity Gauge temperature scale is located on Engauge tab sheet Board specific and can be set to lt ITS 90 gt default or lt IPTS 68 gt SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Commissioning Average temperature Median filter for each calculated spot temperature The function of the Median filter is to avoid strong fluctuations in the temperature reading With the window size of 5 the actual temperature value and the 4 previous values are sorted on ascending value The actual value will be the middle sorted value After this the values are shifted for the next cycle The entity Median filter is located on Engauge tab sheet Product temperature and can be set to lt enable gt default or lt disable gt Averaging filter for product temperature and vapour temperature To avoid strong fluctuations in the average product and average vapour temperature values an averaging filter is implemented The filter constant can be adapted The filter constant relation is as follows Tnew Averaging constant Toa 1 Averaging constant Tnew 15 The entities Average constant filter and Average constant are located on Engauge tab sheet Product temperature e The Average constant filter can be set to lt enable gt default or lt disable gt e The Average constant is a value ranging lt 0 x x gt floating point f
64. scribes the advanced settings which can only be made by the Engauge Professional service tool for the commissioning of the average temperature and water level measurement on the FII VT board VITO Interface and probe types 762 VITO MTT Interface connects 764C VITO temperature probe 16 spots equally spaced from 1 m 39 above probe bottom end 764D VITO temperature probe 15 spots equally spaced from 1 m 39 above probe bottom end with additional spot at 0 065 m from probe bottom end 766C VITO combi probe 16 spots equally spaced from 0 5 m 20 above water probe 766D VITO combi probe 15 spots equally spaced from 0 5 m 20 above water probe with additional spot at 0 065 m 2 6 from probe bottom end 765 VITO water probe 864 MTT 762 VITO LT Interface connects 767C VITO temperature probe 9 spots equally spaced from 1 m 39 above probe bottom end 767D VITO temperature probe 8 spots equally spaced from 1 m 39 above probe bottom end with additional spot at 0 065 m from probe bottom end 768C VITO combi probe 9 spots equally spaced from 0 5 m 20 above water probe 768D VITO combi probe 8 spots equally spaced from 0 5 m 20 above water probe with additional spot at 0 065 m 2 6 from probe bottom end 765 VITO water probe 762 VITO MRT Interface connects Part No 4417764 Revision 2 Honeywell Enraf MRT Multiple Resistance Thermometer up to 13 temperature eleme
65. sections with different diameters refer to Heimdall diagram on stilling well sections with different diameter Maximum safe fill When the 9 switch of Compensations and features is set to True to the SmartRadar FlexLine checks whether innage exceeds Maximum safe fill the maximum height the tank can safely be filled At initial commissioning Maximum safe fill is 0 and must be filled in by the user Up to software version A1110 When the 9 switch of Compensations and features is set to True the status of the product level will be lt UNCERTAIN gt when innage exceeds Maximum safe fill From software version A1120 When the 9 switch of Compensations and features is set to True the status of the product level will be lt BAD gt when innage exceeds Maximum safe fill The status will return to lt GOOD gt when the product level will get below Maximum safe fill without exceeding minimum ullage When minimum ullage is exceeded the status will permanently be set to lt BAD gt until the user explicitly resets the gauge by giving a CLEAR_OVERFILL command when the level is below minimum ullage Engauge e Maximum safe fill is found in the Product level tab e The software version can be found in the Generic tab SmartView e Maximum safe fill is found in the commissioning menu as max safe fill e The software version can be found in the identification menu SmartRadar FlexLine Profes
66. sion compensation False Disabled 5 Compensation for hydrostatic deformation False Disabled 6 Moving averaging filter True Enabled T Predictive moving averaging filter False Disabled 8 Level end switch False Disabled 9 Maximum safe fill True Enabled Output filters The SmartRadar FlexLine can activate an output filter for both radar innage and radar ullage to reduce level noise The higher the value of the filter averaging constant the more damping on the radar innage and radar ullage values The minimum value of the filter averaging constant is 0 no filtering the maximum value is 99 95 99 up to software version A1110 There s a choice between two types of filters a moving averaging filter and a predictive moving averaging filter The general behaviour of the moving averaging filter is shown in figure 3 The filter introduces a lag between actual ullage innage and filtered ullage innage when the product level is changing The higher the value of the filter averaging constant the larger the lag is Because of the high level update rate of the SmartRadar FlexLine the lag is relatively small Table 2 gives an indication of the behaviour for different filtering constants E g when the filter averaging constant 95 and the level change is 0 5 mm per second the maximum lag will be approximately 2 seconds in time and thus 2 0 5 1 mm in distance while the noise reduction will be approximately 4 5 le
67. sional Part No 4417764 Revision 2 For internal use only Honeywell Enraf DIAGNOSTICS When the SmartRadar FlexLine gives an inaccurate reading there are roughly two categories e Large errors gt 0 15 m e Small errors lt 0 10 m The first category of errors is usually caused by selection of the wrong peak as level peak in the power spectrum To solve these problems refer to the peak selection part of the diagnostics In the second category of errors the right peak is selected but there s a problem with calculating the product level accurately On a stilling well application the diameter of the stilling well might be wrong see Measuring on stilling well Else refer to the phase guarding part of the diagnostics Engauge from software version A1130 e The Product level tab in Engauge shows a history of the last 10 occurred warning statuses lt UNCERTAINS gt and error statuses lt BAD gt Peak selection Tab sheets Peak Selection Obstructions and zones Advanced All objects that are within the microwave path will cause reflections that will be visible in the power spectrum Apart from the product reflection reflections caused by the bottom antenna and all kinds of obstructions like heating coils welding seams from tank shell or stilling well can be visible Also multiple reflections might be visible for instance additional reflections that travel multiple times between the roof and the product l
68. t to refer to figure 17 o lt No exclusion gt default o lt Static exclusion gt o lt Dynamic exclusion gt e The Temperature element exclude zone sets the threshold below which a temperature fail is generated when Low element usage is set to Static exclusion and is a value ranging lt x x x x gt floating point format T1 pos lt Temp Element exclude zone lt T2 pos Default value is lt 1 gt e The Smoothing level is used when Low element usage is set to Dynamic exclusion refer to figure 25 and is a value ranging lt x x X xX gt floating point format Below the Smoothing level till Position of element 2 the average product temperature gradually changes to T1 value T2 pos lt Smoothing level lt T3 pos Default value is lt 0 gt MRT type Variable Length Elements or Multiple Resistance Thermometers can have a spot element at the bottom part will be switched on from 0 25 m element length If no spot element is present the first element is switched on from 0 65 m Without spot element the maximum number of MRT elements remains 13 Part No 4417764 Revision 2 SmartRadar FlexLine Professional 49 Honeywell Enraf For internal use only Commissioning Average temperature The entity MRT type is located on Engauge tab sheet Product temperature and can be set to e lt No spot below gt default e lt With spot below gt MPT element position mode When the Multiple Spot
69. t will be 2 mm at 22m It is advised to correct both phase ullage and PSD ullage by ullage correction table In this case the correction will be 0 at 11 m and 0 002 m at 21 m for phase ullage general Ullage Correction Table see Compensations sheet in Engauge The correction will be O at 11 m and 0 002 m at 21 m for PSD ullage Ullage Correction Table PSD see Advanced sheet in Engauge Heimdall Diagram ome Created 2007 09 26 16 39 39 Device FlexLine Tank Demo Hiig SN TA aa o i i MM t iA Ay a Yi f LATTAN Aten tS m 0 004 0 006 0 008 0 010 0 000 2 000 4 000 6 000 8 000 10 000 12 000 14 000 16 000 18 000 20 000 22 000 m This diagram is generated by Engauge 2007 Enraf B V Figure 15 Heimdall diagram of an 8 stilling well application with different sections of stilling well SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Diagnostics Raw data diagram In Engauge a Raw Data Diagram can be made with the FlexLine It shows the time domain sampled low frequency signal measured by the FlexLine On the X axis the number of samples 1024 is shown and on the Y axis the amplitude of the signal The range on the Y axis is from 32768 to 32768 the result from 16 bits AD conversion In general the raw data diagram shows a low frequency signal 6 to 12 periods what is caused by the antenna reflection Superimposed on that low frequency signa
70. ta average product temperature 1 Name Explanation Raw temperature elements An array of 16 data fields with the raw unfiltered temperatures of each temperature element Raw resistance elements An array of 16 data fields with the raw measured resistances of each temperature element only with Variable Length elements MRT and Multiple Spot elements MPT Test resistance The measured value of the test resistance in the VITO Interface unit This value should be 166 5 Q 0 03 Cable resistance The measured cable resistance black wires of Variable Length elements MRT and Multiple Spot elements MPT On Engauge tab sheet Product temperature Table 13 Measured data average product temperature 2 Name Explanation Element position for An array of 16 data fields containing the element positions calculation including the Lowest element offset Highest selected element The highest selected temperature element for average product temperature calculation Element in calculation An array of 16 data fields with information which elements are used for average product temperature calculation Element wiring request 16 Hexa decimal characters showing the sequence in which order the thermo couples of the VITO probe are connected to the VITO Interface unit On Engauge tab sheet Miscellaneous Table 14 Measured data average product temperature 3 Name Explanation HART communication retry An array of 16 dat
71. te are related to the peak selection fail delay mechanism Suppress counter shows how many times the tracked peak has not been seen SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf Diagnostics Classification info The classification information consists of three parts separated by spaces Knowledge source Peak classification Confidence level Knowledge source The knowledge source indicates the type of pattern the peak may be part of The SmartRadar FlexLine has the following knowledge sources RFL The peak is part of a multiple reflection pattern product or echo In this case a pattern of reflections is present that satisfy the conditions amplitude and distance of multiple reflections caused by the roof BOT The peak is part of a product and bottom pattern OBS The peak is part of an obstruction ANT The peak is part of an antenna pattern antenna reflection or antenna echo BSP The peak is not related to another peak CLS The peak is closest to the antenna This classification info is only possible for peaks in the differential spectrum Peak classification The peak classification indicates the type of peak The SmartRadar FlexLine knows the following types PRD The peak is a possible product reflection ANT The peak is the antenna AE The peak is an antenna echo BOT The peak is the bottom reflection OBS The peak is an obstruction ECH The peak is a
72. ther candidates as well Number of detected peaks Number of peaks in the high resolution power spectrum above the thresholds Detected peaks A list containing the indices of the detected peaks in the power spectrum The list is ordered by strength The strongest peak is the first the weakest the last For more information on the peaks check Radar peak diagnostics Radar peak diagnostics Information on the detected peaks in the power spectrum Of special interest is the Classification field This will show information on how the SmartRadar FlexLine evaluates the detected peaks The Information consists of three parts separated by spaces Knowledge source Peak classification Confidence level See classification info for an explanation Detected peaks diff A list containing the indices of the detected peaks in the differential spectrum The list is ordered by strength The strongest peak is the first the weakest the last For more information on the peaks check Radar peak diagnostics diff Radar peak diagnostics diff Information on the detected peaks in the differential soectrum As with the diagnostics of the power spectrum the Classification field shows information on how the SmartRadar FlexLine evaluates the detected peaks PSD ullage is not available for peaks in the differential spectrum From software version A1130 Tracked peak info Information on the tracked peak Suppress counter and suppress sta
73. ue depends on the position of the strongest peak When the strongest peak is positioned in the antenna zone or product zone the value is determined by entity Relative to highest peak threshold default 16 dB when the strongest peak is in or beyond the bottom zone the threshold is determined by entity Relative to highest peak threshold BZone default 16 dB In case there is a strong reflection from the tank bottom the entity Relative to highest peak threshold BZone can be adapted in order to select the product peak in the bottom zone 90 000 80 000 70 000 0 000 2 000 4 000 6 000 8 000 10 000 12 000 14 000 16 000 18 000 20 000 22 000 This spram is generated by Engauge 2007 tnra B V Figure 10 Example of reflection diagram with zones and thresholds Relative to highest peak threshold is shown by Engauge from software version A1130 In case obstructions e g heating coils are located in the microwave path an obstruction zone can be defined to mask the reflection from the obstruction The position of the obstruction zone and its threshold can be found from the reflection diagram The ullage and position of the maximum 15 strongest detected peaks can be read in entity Radar peak diagnostics An obstruction zone must be enabled before it becomes effective The length of the obstruction zone should be at least 0 45m An obstruction zones influences the peak selection in two ways It masks reflections below the threshold
74. ured water capacitance 120 786 pF 3 Calculate new value for Minimum water capacity Minimum water capacity _ 120 0 SOOM y 120 786 120 0 123 930 pF or 26a 7 19 09 Minimum water capacity new 120 0 3 82 x 120 786 120 0 123 930 pF x 26b 1 591 Minimum water capacity new 120 0 0318 x 120 786 120 0 123 930 pF 26c The entities Minimum water capacity Maximum water capacity and Measured water capacitance are located on Engauge tab sheet Water level e Minimum water capacity is the capacity when the probe is not submerged in water in pF Value obtained from Checklist 765 766 768 Final Assembly or from above described measurements and calculations The value range is lt 0 0 x x gt floating point format Default value is lt 20000 gt e Maximum water capacity is the capacity when the probe is fully submerged in water in pF Value obtained from Checklist 765 766 768 Final Assembly The value range is lt 0 0 x x gt floating point format Default value is lt 20000 gt e Measured water capacitance indicates the measured capacitance of the water probe in pF The value must be in range between Minimum water capacity and Maximum water capacity Default value is lt 0 gt SmartRadar FlexLine Professional Part No 4417764 Revision 2 For internal use only Honeywell Enraf ADDITIONAL SETTINGS for 365 temperature and water probe
75. vel change is 0 02 sec maximum lag is 2 0 02 0 04 A disadvantage of the moving averaging filter is the lag when the product level is moving When the product level is moving uniformly the predictive moving averaging filter will eliminate the lag see figure 4 This means that the output level will be equal to the actual level The output level will now however have some overshoot when the product level starts and stops moving Because of the high level update rate of the SmartRadar FlexLine Part No 4417764 Revision 2 SmartRadar FlexLine Professional 7 Honeywell Enraf For internal use only Compensations Exponentially weighted moving average filter as a a Ullage 53 525 52 E H 8 j o F i 435 120 Example of moving average filter behaviour Figure 3 5 mm sec sec level change Predictive exponentially weighted moving average filter 53 Cd ee ee ee Annn 525 a eh cL 51 505 5 35 Example of predictive moving average filter behaviour Figure 4 5 mm sec _ sec level change Part No 4417764 Revision 2 SmartRadar FlexLine Professional For internal use only Honeywell Enraf Compensations the overshoot is relatively small Table 3 gives an indication of the behaviour for different filtering constants E g when the filter averaging constant 98 and the level cha

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