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User Manual SONO-SILO

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4. LS _______ _ LUTT RT TA LS _ ____ ET ee 1 BE a eh LETT IM TENNING TT TT TTTTTT TT y JIN w 1 TT 1 1 1 e e c e e T 80 700 Radartime Picoseconds 200 300 400 500 100 IMKO 19 40 3 1 1 Creating a linear Calibration Curve for a specific Material The calibration curves Cal1 to Cal15 can be easily created or adapted for specific materials with the help of SONO CONFIG Therefore two measurement points need to be identified with the probe Point P1 at dried material and point P2 at moist material where the points P1 and P2 should be far enough apart to get a best possible calibration curve The moisture content of the material at point P1 and P2 can be determined with laboratory measurement methods oven drying It is to consider that sufficient material is measured to get a representative value Under the menu Calibration and the window Material Property Calibration the
5. LI 5 Adjustable Moisture fThresnold 196 Start of first batch process Start of second batch process After the period SONO probe recognizes that the of No Material Delay e g 5 seconds the adjustable moisture threshold of e g SONO probe recognizes that the threshold of 1 has been exceeded the 1 has been exceeded The previously stored probe starts automatically with the measurement value is cleared and the probe continuous accumulation of starts again automatically with the continuous measurement values yellow curve accumulation of measurement values yellow curve IMKO 12 40 2 1 4 Mode CH Automatic Moisture Measurement in one Batch If the PLC already accumulates moisture values than an additional automatic summation of a moisture quantity inside the SONO VARIO during one batch process will produce errors From the procedure the mode CH is identically with the mode CC but without automatic summation 2 2 Overview of single modes for different applications The following table gives an overview about possible parameter settings in different modes Sand Gravel under a silo flap At the end of a Screw conveyor in a screw conveyor with filtering options due to metal us Gene rally simple appli cations Inside a fluid bed dryer Inside a mixer Above a conveyor belt Application Installation and specific Parameters
6. Calculate Coetts Coetts gt Probe Close 32 40 Y NE 6 Installation of the Probe The installation conditions are strongly influenced by the constructional circumstances of the installation facility The ideal installation location must be established individually The following guidelines should hereby be observed The probe can be fitted with a pipe extension with 55mm outer diameter in silos The length of the extension tube is dependent on the particular facility and must be adjusted by the customer For easy mounting a mounting flange with 55mm inner diameter is deliverable The ability to incline the sensor surface allows the setting of minimum density fluctuations It is important that the probe is positioned in an optimal material flow For larger particle sizes the use of a deflector plate is required 6 1 Assembly Instructions Unfavourable conditions for moisture probes can occur if the sand is very sticky and the probes are installed inside silos or inside outlets The picture shows how sticky and adhere sand can be even at near vertical walls Furthermore a moisture probe can be seen which is installed directly inside the outlet of a silo where sand can stick not only at the wall but also on the moisture probe Such an installation place can lead to measurement failures if sand is very sticky The following instructions should be followed when installing the probe
7. Long term process Operating Mode Average Time inactiv inactiv 100 100 inactiv 100 inactiv 100 inactiv 100 Filter Upper Limit Offset e g 20 Filter Lower Limit Offset Upper Limit Keep Time Lower Limit Keep Time Moisture Threshold No Material Invalid Measure Count inactiv 100 inactiv inactiv 100 e g 10 inactiv inactiv inactiv 100 100 100 d e g 10 inactiv inactiv 10 10 inactiv inactiv 10 10 mo d e g 10 inactiv inactiv inactiv inactiv ulo inactiv For very difficult applications where it is not certain which mode is the best we recommend to select mode CA with averaging time 1 second With help of the software SONO CONFIG a data record can be stored directly during process conditions After forwarding this data set to IMKO we would be pleased to be at your disposal for finding the best suitable working mode IMKO 1 3 40 MEROMOCDUTECHNIE Y G 2 3 SONO SILO for measuring Moisture of Sand and Aggregates The TRIME TDR technology with the radar method offers high reliability for measuring moisture of sand and aggregates Conventional measurement techniques such as microwave technology show considerable dependencies in different grading ranges The calibration curve Cal1 Universal Sand Gravel Grit of a SONO probe is suitable for measuring the moisture in sand with a grading size of 0 2mm as well as in gravel
8. 23 4 1 1 OMS CHONG m 24 3 40 4 1 2 Analogue Output 0 10V with Shunt Resistor 25 4 1 3 Connection diagramm with 25 4 2 Connection the 5485 to the SM USB Module from IMKO 26 5 Quick Guide for the Commissioning Software SONO CONFIG 27 5 1 1 Scan of connected SONO probes on the serial interface 27 5 1 2 Configuration of Measure Mode and serial SONO interface 28 5 1 3 Analogue outputs of the SONO 28 5 1 4 Selection of the individual Calibration Curves 29 5 1 5 Test run in the respective Measurement 30 5 1 6 Measure run in 30 5 1 7 Basic Balancing in Air and 31 EE ONE GE 32 6 1 Assembly Instructions Lae __ _ _ _ 32 6 2 Dimensions SONO SILOStandard SONO SILOXtrem 33 63 Mo n ng eee erin a i 34 6 4 Mounting silo or weighing 35 6 5 Gas and waterproofed Installation sss enne 36
9. OV DC or GND IMP Bus RIT Connection to further SONO probes Connection to further SONO probes 1 Analog Positiv 4 1 Analog Positiv Ni 1 Analog Positiv I 1 Analog Positiv LE s 0 4 20mA PLC 0 4 20mA SONO VIEW Analogue input Analogue input Installation in the control moisture Distribution Cabinet room or inside the distribution cabinet IMKO 26 40 7 GNB 4 2 Connection the 5485 to the SM USB Module from IMKO The SM USB provides the ability to connect a SONO probe either to the standard 5485 interface or to the IMP Bus from IMKO In fact that the IMP Bus is more robust and enables the download of a new firmware to the SONO probe the SONO probes are presetted ex factory to the IMP Bus So it is recommended to use the IMP Bus for a serial communication Both connector ports are shown in the drawing below The SM USB is signalling the status of power supply and the transmission signals with 4 LED s When using a dual USB connector on the PC it is possible to use the power supply for the SONO probe directly from the USB port of the PC without the use of the external AC adapter Connection to the Probe RS485 Connector Pin B 0V Power Supply Pin A 12VDC Power Supply Pin G RS485B Lead Colour brown Pin F RS485A Lead Colour white 12VDC IMP B nn r
10. With the option to accomplish a download of the firmware for the SONO probe Pin B 0V Power Supply Pin A 12VDC Power Supply Pin C rt Lead Colour grey pink Pin J com Lead Colour blue red How to start with the USB Module SM USB from IMKO e Install USB Driver from USB Stick Connect the SM USB to the USB Port of the PC and the installation will be accomplished automatically e Install Software SONOConfig SetUp msi from USB Stick Connection of the SONO probe to the EX9531 RS485A RS485B and OV e Check the setting of the COM Ports in the Device Manager und setup the specific COM Port with the Baudrate of 9600 Baud SONO CONFIG with the button Bus and Configuration COM15 is possible e Start Scan probes in SONOConfig e he SONO probe logs the window Probe List after max 30 seconds with its serial number MKO y 27 40 5 Quick Guide for the Commissioning Software SONO CONFIG With SONO CONFIG it is possible to make process related adjustments of individual parameters of the SONO probe Furthermore the measurement values of the SONO probe can be read from the probe via the serial interface and displayed on the screen In the menu Bus and the window Configuration the PC can be configured to an available COMx port with the Baudrate of 9600 Baud Bus Configuration General SonoConfig E iol x Serial Fort Exit
11. 10 03 95 11 03 2014 26 00 91 1 3 222 02 7 51 1 00 91 0 16 03 55 1103 2014 26 06 91 1 222 9 7 6 7 5 8 04 91 0 16 03 54 11 03 2014 7 5 2 J 91 07 3 222 7 51 7 5 8 1 00 81 0 16 03 53 11 23 2014 7 4 1 43 3 221 23 7 51 7 7 51 1 020 91 0 16 03 52 11 03 2014 7 5 91 07 22 15 7 45 7 5 7 46 7 51 31 0 910 16 09 51 1140 2014 o 1 19 3 222 65 75 751 1 00 21 0 910 16 03 50 11 03 2014 7 6 0 0 91 1 222 745 7 06 7 45 7 45 D 900 16 03 49 1140 2014 20 91 29 2 20354 7 45 7 9 E L 00 82 0 16 03 48 11 03 2014 26 00 2 00 91 21 23 0 7 98 7 7 45 1 00 92 0 910 10 03 97 1140 2014 5 25 70 91 1 222 55 7 9 E 1 00 91 0 16 03 1143 2014 25 7 5 00 1 14 222 63 7 45 7 9 7 52 82 0 16 03 45 11 03 2014 21 1 3 7 5 5 91 0 16 03 44 11 20 2014 25 50 91 14 3 222 50 7 45 RIE 91 0 16 03 43 11 03 2014 25 70 91 14 2 39 7 45 7 45 931 0 16 03 42 11 20 2014 M 29 7 91 1 gt 222 33 2 0 91 0 16 03 44 11 03 2014 20 91 07 7 46 7 46 91 0 16 03 40 11 02 2014 7 46 75 96 91 07 5 7 46 7 9 82 0 16 03 39 1123 2014 25 50 91 07 3 7 4 7 46 91 0 Following measurement values are displayed on the screen MoistAve Moisture Value in 96 Average MatTemp Temperature EC TRIME Radar based Conductivity EC TRIME in dS m or mS cm TDRAve TDR Signal Level for special applications DeltaCount Number of single measurements which are used for the averaging tpAve Radar time average which corresponds to the respective mois
12. The mounting flange can be screwed on to the rear side of any silo container or hopper gas and waterproofed tube fitting is available on request MEASUREMENT RANGE MOISTURE The sensor measures from 0 up to the point of material saturation Measurement ranges up to 90 moisture are possible with special calibration MEASUREMENT RANGE CONDUCTIVITY The sensor as material specific characteristic value delivers the radar based conductance RbC Radar based Conductance conductivity range is reduced moisture measurement ranges gt 50 SONO SILOStandard 0 12dS m conductivity SONO SILOXtrem 0 40dS m conductivity MEASUREMENT RANGE TEMPERATURE Measurement Range 0 C 70 C A temperature sensor is installed into the SONO SILO s electronic housing which establishes the casing temperature beneath the probe head see point 3 2 The temperature can optionally be issued at the analogue output 2 As the TRIME electronics operates with a power of approximately 1 5 W the probe casing does slightly heat up A very precise measurement of the material temperature is therefore only possible to a certain degree and only if the electronic housing is completely surrounded by the material The material temperature can be determined after an external calibration and compensation of the sensor self heating On request High temperature version with external measurement transformer IMKO 38 40 MEASUREMENT DAT A PR
13. Where very high demands are made in recipe accuracies e g 1 liter per it is recommended to make a fine adjustment ideally inside the PLC How is it possible to avoid a change of the calibration curve inside the SONO SILO for different grading ranges If itis necessary to measure different sand grading ranges with only one SONO SILO without an online changing of the calibration curve than a measurement value conversion can be done inside the PLC with the knowing grading range Furthermore it could be of advantage if a SONO probe must be not adapted to a fixed grading range making replacement parts easier to keep in stock IMKO 15 40 Following table gives an overview about sand grading ranges bulk density and the analog output of the SONO SILO With little math it is possible to translate standard moisture measurement value measured with in into the correct measurement value associated to the grading range 4 20mA Current output Measurement conversion for 0 to 20 moisture at different grading ranges with standard calibration curve Cal1 Grading range Moisture A value of 0 moisture Moisture value at 20mA and bulk value at 4mA thus conforms to an output current at the density current at the output current in mA at analog output in kg dm analog output the analog output of theoretically 0 2mm 1 6 0 29 4 24mA 18 496 0 20mA Current output Measurement conversion for 0 to 20 moisture at differ
14. e Theinstallation locations may not be situated beneath the inlets for additives Areas with strong turbulences are not ideal for the installation There should be a continuous material flow above the probe head e The probe should not be installed in the direct vicinity of electrical disturbing sources such as motors e An ideally installation place for moisture probes is directly under a silo flap because this leads to obvious advantage Attention Hisk of Breakage The probe head is made of hardened special steel and a very wear resistant ceramic in order to warrant for a long life span of the probe In spite of the robust and wear resistant construction the ceramic plate may not be exposed to any blows as ceramic is prone to breakage In case of welding work at the plant all probes must be completely electrically disconnected Any damage caused by faulty installation is not covered by the warranty Abrasive wear of sensor parts is not covered by the warranty 33 40 6 2 Dimensions SONO SILOStandard and SONO SILOxtrem Tube Extension steel for SONO SILOsStandard Electronic housing Internal temperature sensor 170mm O Ring dependent of the Silo 4 x thread M5 E E 2 countersink for 4 x counter sunk screw M5 34 40 6 3 Mounting SONO SILO E Silo Mounting 00808 Flange is tube extension SONO SILO Dimensions of the
15. 5 1 3 Analogue outputs of the SONO probe In the menu Config and the window Analog Output the analogue outputs of the SONO probe can be configured see Chapter Analogue outputs Analog Output Output Current 0 20m 4 20m C 200m C 20 4mA Dutput Channels fF Moist Temp Moist Conduct Moist Temp Conduct Moisture Range Temperature Range 1 em et Maximum 100 Set C 0 20 amp 0 50 Minimum fo Set Minimum 0 Set Maximum 125 Simulate Close IMKO 29 40 5 1 4 Selection of the individual Calibration Curves In the menu Calibration and the window Material Property Calibration the calibration curves to Cal15 which are stored in the SONO probe are loaded and displayed on the screen takes max 1 minute With the mouse pointer individual calibration curves can be activated and tested with the SONO probe by activating the button Set Active Calib Furthermore the individual calibration curves CAL1 to Cal15 can be adapted or modified with the calibration coefficients see Chapter Creating a linear calibration curve Material Property Calibration X Calibration Item Set Active Calib Default Calibration Item Please select one calibration from Call ta Call5 to operate 0 00000 Ma Calibration 00000 00000 00000 1 06035 Unitversal S jeas 06000 00 2 06
16. Mounting Flange screw M6 IMKO 35 40 P 6 4 Mounting on silo or weighing bin tube extension welded mounting tube material BIET silo or T weighing bin amp 4 standard mounting flange inclination of the LU _ measurement plate depending on the material bulk valve An ideally installation place for the SONO SILO is directly under a silo flap Best conditions for non sticking of material and a visually control 36 40 6 5 Gas waterproofed Installation For a gas and waterproofed installation up to 10bar pressure a temperature range of 407 to 100 C a special tube fitting for a diameter of 55mm is deliverable on request RoHS IMKO 37 40 7 Technical Data SONO SILO SENSOR DESIGN SONO SILOStandard Casing Electronic Head High Grade Steel V2A 1 4301 Casing Probe High Grade Steel V2A 1 4301 Abrasion Surface Highly abrasion resistant aluminium oxide ceramic SONO SILOXtrem Casing Electronic Head High Grade Steel V2A 1 4301 Casing Probe High Grade Steel V2A 1 4301 Abrasion Surface Highly abrasion resistant Si304 oxide ceramic MOUNTING Sensor Dimensions 55 350mm Diameter x Length The sensor can be installed into silos with tube extensions The length of the tube extension is dependent on the installation facility
17. T Technical Data SONO SILO eee enhn unn enhn ena 37 MKO y 4 40 1 Instrument Description SONO SILO 1 1 1 The patented TRIME TDR Measuring Method The technology Time Domain Reflectometry is a radar based dielectric measuring procedure at which the transit times of electromagnetic pulses for the measurement of dielectric constants respectively the moisture content are determined SONO SILOGonerete consists of a high grade hardened casing with a wear resistant sensor head with ceramic window The SONO SILOPTFE probe head is made of PTFE and thus providing best possible anti adhesive properties An integrated TRIME TDR measuring transducer is installed into the casing A high frequency TDR pulse 1GHz passes along wave guides and generates an electro magnetic field around these guides and herewith also in the material surrounding the probe Using a new patented measuring method IMKO has achieved to measure the transit time of this pulse with a resolution of one picosecond 1x10 consequently determine the moisture and the conductivity of the measured material The established moisture content as well as the conductivity respectively the temperature can either be uploaded directly into a SPC two analogue outputs 0 4 20 mA or recalled via serial RS485 interface 1 1 2 TRIME compared to other Measuring Methods In contra
18. and grit L Moisture in L Gravel 6 12mm Gravel Sand Granulates 77 Universal Calibration eee 250 tpAve Radartime in Picoseconds Gravel 4 6mm Gravel 6 12mm Gravel Sand Granulates IMKO 14 40 2 3 1 SONO SILO in use with different sand grading ranges The sand densitiy is varying depending on grading ranges but also on minerals type The SONO SILO as standard version is calibrated with calibration curve Cal1 for sand with a grading range of 0 2mm With it is also possible to measure gravel and grit Depending on grading ranges the bulk density of sand is varying considerably Therefore for other grading ranges up to 0 8mm there are other calibration curves Cal1 to Cal6 stored inside the SONO SILO Following table gives an overview about the calibration curves inside the SONO SILO for sand gravel and grit Aggregates Bulk Density Recommended and grading Please note the bulk Calibration Curve range density may vary dependent on type of plant Sand 0 2mm 1 5 Cal1 Universal sand gravel and grit Gravel and grit D c 1 7 Cal6 gravel and grit 4 to 32mm similar to Cal1 oand 0 2mm D c 1 6 Cal2 1 6 for bulk density 1 6 Sand Gravel D c 1 7 Cal3 1 7 0 4mm for bulk density 1 7 Sand Gravel D c 1 8 Cal4 1 8 0 5mm for bulk density 1 8 Sand Gravel D c 1 9 Cal5 1 9 0 8mm for bulk density 1 9
19. attention should be directed at those time periods in which the measurement area of the probe is only partially filled with material for a longer time i e the material sand temporarily no longer completely covers the probe head During these periods Lower Limit Keep Time the probe would establish a value that is too low The Lower Limit Keep Time sets the maximum possible time where the probe could determine inaccurate too low measurement values Furthermore the passing or wiping of the probe head with metal blades or wipers can lead to the establishment of too high measurement values Filter Upper Limit Upper Limit Keep Time sets the maximum possible time where the probe would determine inaccurate too high measurement values Using a complex algorithm SONO probes are able to filter out such faulty individual measurement values The standard settings in the Measurement Mode CA and CF for the filter functions depicted in the following have proven themselves to be useful for many applications and should only be altered for special applications It is appropriate to bridge material gaps in mode CA with Upper and Lower Limit Offsets and Keep Time For example the Lower Limit Offset could be adjusted with 296 with a Lower Limit Keep Time of 5 seconds If the SONO probe determines a moisture value which is 2 below the average moisture value with e g 8 than the average moisture value will be frozen at this value during the Lower Limi
20. calibration curves to Cal15 which are stored in the SONO probe are loaded and displayed on the screen takes max 1 minute With the mouse pointer individual calibration curves can be tested with the SONO probe by activating the button Set Active Calib The measurement of the moisture value MoistAve with the associated radar time tpAve at point P1 and P2 is started using the program SONO CONFIG in the sub menu Test and Test in Mode CA or CF see Quick Guide for the Software SONO CONFIG Step 1 The radar pulse time tpAve of the probe is measured with dried material Ideally this takes place during operation of a mixer dryer in order to take into account possible density fluctuations of the material It is recommended to detect multiple measurement values for finding a best average value for tpAve The result is the first calibration point P1 e g 70 0 l e 70ps picoseconds of the radar pulse time tpAve corresponds to 096 moisture content of the material But it would be also possible to use a higher point P1 e g 190 7 where a tpAve of 190ps corresponds to a moisture content of 796 The gravimetric moisture content of the material e g 7 has to be determined with laboratory measurement methods oven drying Step 2 The radar pulse time tpAve of the probe is measured with moist material Ideally this also takes place during operation of a mixer dryer Again it is recommended to detect multiple measurement values of tpAve
21. generated due to Standard Setting 0 90 insufficient material at the probe head e g due Setting Range 0 8 0 97 to the mixer blades are filtered out The lower limit is set as a multiplication factor For a moisture value reading of e g 8 the lower limit is thus 8 x 0 9 7 2 Lower Limit Keep Time The maximum duration in seconds of the filter Standard Setting 4 function for Lower Limit failures too less Setting Range 2 20 material at the probe can be set with this parameter Kalman Filter Parameter in Measurement Mode CK Q Parameter This Kalman filter parameter Q is used to Standard Setting 1x10 5 characterize the systemic measurement error It Setting Range 0 01 1x10 7 is recommended to leave this parameter to the default setting R Parameter This Kalman filter parameter R is used for Standard Setting 0 033 smoothing the measurement error The lower Setting Range 0 01 0 1 this parameter the faster is the response to smaller changes in the moisture readings The higher this parameter is the more smoothed the measured value but with a delayed reaction time It is recommended to leave this parameter to the default setting K Parameter This special Kalman filter parameter K is used Standard Setting 0 01 for a pre dynamic behaviour of the Kalman Filter Setting Range 0 01 0 2 for higher changes in the moisture reading i e the reaction rate of the measurement signal can be affected hereb
22. of the SONO probe can be used for displaying the moisture value to a simple 7 segment unit as long as a new batch process starts With the parameter Moisture Threshold the SONO probe can be configured to the start moisture level where the summation starts automatically Due to an automatic recalibration of SONO probes it is ensured that the zero point will be precisely controlled The start level could be variably set dependent to the plant Recommended is a level with e g 0 596 to 1 With the parameter No Material Delay a time range can be set where the SONO probe is again ready to start a new batch process Are there short material gaps during a batch process which are shorter than the No Material Delay with no material at the probes surface then the SONO probe pauses shortly with the summation Is the pause greater as the No Material Delay then the probe is ready to start a new batch process IMKOV 11 40 How can the mode CC be used if the SONO probe cannot detect the moisture threshold by Itself e g if there is constantly material above the probe over a longer time In this case a short interrupt of the probe s power supply e g for about 0 5 seconds with the help of a relay contact of the PLC can restart the SONO probe at the beginning of the material transport After this short interrupt the SONO probe starts immediately with the summarizing and averaging Please note It should be noted that no material sticks on the pr
23. 040 Lime Sand Linear DENA 3 06041 Cement Powder 06041 0 000 Set Default Calib 4 05042 Wood Pellets 05042 gepi 06000 5 06043 Wheat 06043 Denn 06000 06044 Flour 06044 05000 06000 05045 Suger 05045 06000 6000 Universal Sand Min B 4 Brown coal granulate 4 3 0504 7 0504 7 06000 06000 Set 10 05048 Expanded clay 06043 06000 06000 11 05049 Lightly sand 05049 Material Temp Coetts 12 06050 Sewage sludge 06050 06000 06000 13 05054 Ceramic Suspension 05054 9 5 14 06058 Aj to Water 06058 06000 Den 0 05 15 06053 5 06053 06000 06000 0 0 0 m5 Set Save Head The desired and possibly altered calibration curve Cal1 15 which is activated after switching on the probes power supply can be adjusted with the button Set Default Calib The calibration name can be entered in the window Calibration Name The coefficients mO to m1 for linear curves and mO to m5 for non linear curves can be entered and adjusted directly by hand with the buttons Set and Save Possible are non linear calibration curves with polynomials up to fifth order 0 5 Attention Use dot as separator for mO to m5 not comma 30 40 5 1 5 Test run in the respective Measurement Mode In the menu Test and the window Test in Mode or CF the measured moisture values MoistAve Av
24. 1 2 M aepdosdde ue auguo Saq0oId ONOS gt p nm oj a qissod si 1 M3tIA ONOS e auoje puejs aur FL po 5 24 40 4 1 1 Connection Plug SONO SILO is supplied with a 10 pole MIL flange plug Assignment of the 10 pole MIL plug and sensor cable connections Sensor Connections Lead Colour Lead Colour PowerSuppy Bue p h Analogue Positive Moisture Green h Analogue Return Line 0 Moisture yelow _ E brown Brown r MP Bus com MP Bus K f2analoguePosiivel Pink PR _ O E 2 Analogue Return Line Screen transparent transparent is grounded at the sensor The plant must be properly grounded IMKO MEROMODULTECHNIE 7 GNB 25 40 4 1 2 Analogue Output 0 10V with a Shunt Resistor There are PLC s which have no current inputs 0 20mA but voltage inputs 0 10 With the help of a shunt resistor with 500 ohm in the delivery included it is possible to generate a 0 10V signal from the current signal 0 20mA The 500 ohm shunt resistor should be placed at the end of the line resp at the input of the PLC Following drawing shows the circuit principle PLC SONO Probe Current signal 0 20mA Analog Positive Analog Return Line 4 1 3 Connection diagramm with SONO VIEW SONO SILO SONO VARIO 24V DC Power Suppl
25. 85 interface to the PC RS485 USB Module which is available from IMKO The following settings of SONO SILO can be amended with the service program SONO CONFIG Measurement Mode and Parameters Measurement Mode A On Request only in network operation for the retrieval of measurement values via the RS485 interface e Measurement Mode Setting CA Cyclic Average For relative short measuring processes with continual average value filtering and an accuracy of up to 0 1 Setting CF Cyclic Float Average For very slow measuring processes with floating average value filtering and an accuracy of up to 0 1 Setting CS Cyclic Successive For very short measuring processes without floating average with internal up to 100 measurements per second and cycle time of 200 milliseconds at the analogue output Mode Cumulated with automatic summation of moisture quantity during batch process Mode CH Cyclic Hold similar to mode CC but without summation Average Time reaction rate of the measurement values Calibration if completely different materials are deployed e Filter Function Each of these settings will be preserved after shut down of the probe and is therefore stored on a permanent basis 2 1 Operation Mode CA and CF at non continuous Material Flow For mode CA and CF the SONO probes are supplied ex factory with suited parameters for the averaging time and with a universal
26. Bus Help LN 5 1 1 Scan of connected SONO probes the serial interface In the menu Bus and the window Scan Probes the serial bus can be scanned for attached SONO probes takes max 30 seconds SONO CONFIG reports one or more connected and founded SONO probes with its serial number in the window Probe List One SONO probe can be selected by klicking Exit Config Calibration Test IMKO 28 40 MECRCMCDUTECOHNIE 5 1 2 Configuration of Measure Mode and serial SONO interface In Probe List with Config and Measure Mode amp Parameters the SONO probe can be adjusted to the desired measure mode CF CS CK CC or CH see Chapter Configuration Measure Mode Furthermore the serial interface inside the SONO probe be selected to IMP Bus RS485 or both interfaces Due to very robust behavior it is recommended to select the IMP Bus Measure Mode amp Parameters Default Cycle Mode code Set Default E Measure Mode amp Parameters Actual Cycle Mode TL oo Average Mode of Mode C Average Select Bus Kalman with Boost C No Ye C IMP amp RS485 Offset with Moist ve 10 fe IMP Average Parameters Average Time s RS485 Filter Upper Limit Offset Filter Lower Limit Offset i Set Upper Limit Keep Time Lower Limit Keep Time Moisture Threshold No Material Delay s d Boost Offset Weight Invalid Measure Count Set
27. EPROCESSING MEASUREMENT MODE Cyclic Average For relative short measuring processes with continual average value filtering and an accuracy of up to 0 196 MEASUREMENT CF Cyclic Float Average For very slow measuring processes with floating average value filtering and an accuracy of up to 0 196 MEASUREMENT MODE CS Cyclic Successive For very short measuring processes without floating average with internal up to 100 measurements per second and a cycle time of 200 milliseconds at the analogue output Mode CC Cyclic Cumulated with automatic summation of a moisture quantity during one batch process Mode CH Cyclic Hold similar to Mode CC but without summation SIGNAL OUTPUT 2 x Analogue Outputs 0 4 20mA Output 1 Moisture in 0 2096 variably adjustable Output 2 Conductivity RbC 0 20dS m or optionally the temperature In addition there is the option to split the analogue output 2 into two ranges into 4 11mA for the temperature and 12 20mA for the conductivity The analogue output 2 hereby changes over into an adjustable 5 second cycle between these two current measurement windows The two analogue outputs can be variably aligned with the SONO CONFIG software For a 0 10V DC voltage output a 500 resistor can be installed CALIBRATION The sensor is provided with a universal calibration for sand A maximum of 15 different calibrations can be stored For special materials variable calibrations with polyn
28. Or 3 Moist Temp Conductivity Analogue output 1 for moisture output 2 for both temperature and conductivity with an automatic current window change For analogue output 1 and 2 the moisture dynamic range and temperature dynamic range can be variably adjusted The moisture dynamic range should not exceed 10096 Moisture Range Temp Range Maximum e g 20 for sand Set in 96 Maximum 70 Minimum 0 Minimum 0 1 2 5 serial 85485 interface SONO SILO is equipped with a standard 5485 interface to serially readout individual parameters measurement values An easy to implement data transfer protocol enables the connection of several sensors probes at the RS485 Interface In addition the SONO SILO can be directly connected to the USB port of a PC in order to adjust individual measuring parameters or conduct calibrations via the 85485 USB Module which can be provided by IMKO 1 2 6 Error Reports and Error Messages SONO SILO is very fault tolerant This enables failure free operation Error messages can be recalled via the serial RS485 interface IMKOV 7 40 2 Configuration of the Measure Mode The configuration of SONO SILO is preset in the factory before delivery process related later optimisation of this device internal setting is possible with the help of the service program SONO CONFIG For all activities regarding parameter setting and calibration the probe can be directly connected the RS4
29. RS485 interface Lenne ___________ ____ 6 1 2 6 Error Reports and Error Messages 6 2 Configuration of the Measure Mode annnnnnxnnnnnnnnnnnnnnnnnennnnnnnnnnnnnennnnnnnnnnnnnnnennnnnnnnnnnnnnnnnnnnnnnnnnnr 7 2 1 Operation Mode CA and CF at non continuous Material FIOW 7 2 1 1 Average Time in the measurement mode and 8 2 1 2 Filtering at material gaps in mode or 9 2 1 3 Mode CC automatic summation of a moisture quantity during one batch process 10 2 1 4 CH Automatic Moisture Measurement one 12 2 2 Overview of single modes for different 12 2 3 SONO SILO for measuring Moisture of Sand and Aggregates 13 2 3 1 SONO SILO in use with different sand grading 14 ITUNES caapi 16 3 1 1 Creating a linear Calibration Curve for specific 19 3 1 2 Nonlinear Calibration Curves 19 3 2 How to perform a calibration with SONO SILO or SONO MIX for determination of water content in easy steps 21 4 Connectivity to SONO 5
30. SONO SILO Measurement A D Converter Water content Measurement value in a PC PLC values without without unit without unit from unit from 0 to max 32768 4 20mA current output signal Measurement 7 968 mA 8126 After completion of values dry This is the step 2 this value mixture Dry value A D can be calculated in the following way 62 1 1 38 24 1 I Measurement 11 232mA 14811 62 1 values wet This is the this water content mixture Target value A D value corresponds for this concrete to the calculated recipe for an w c setpoint for the optimal recipe at the consistency of the beginning recipe Note For prefab concrete with higher flow spread it is recommended to record the wet measurement values without concrete plasticizer in the mixture The reason is that the plasticizer modifies the density of the fresh concrete considerably which leads to deviations in the measurement values 3 Determination of the sensitivity of the SONO SILO for this recipe For calibration and calculation of the mixing water for further mixtures the coefficient c1 Sensitivity of the SONO SILO can be calculated easily in the following way c1 Sensitivity 62 1 24 1 14811 8126 0 005685 With help of the coefficient c1 Sensitivity the amount of mixing water for future mixtures of this recipe can be calculated with the PLC after finishing of the dry mixing times Mixing water Target value A D Dry v
31. User Manual SONO SILO SONO SILOstandard in Stainless Steel Design SONO SILOxtrem for Intensive Mixer IMKO Micromodultechnik GmbH Telefon Im St ck 2 Fax D 76275 Ettlingen e mail http I publik TECH_MAN TRIME SONO ENGLISH SONO SILO SONO SILO MAN Vers2_3 english doc 49 0 7243 5921 0 49 0 7243 90856 info imko de Iwww imko de MKO y 2 40 User Manual for SONO SILO As of 11 June 2014 Thank you for buying an IMKO moisture probe Please carefully read these instructions in order to achieve ideal results with your probe SONO SILO for the in line moisture measurement Should you have any questions or suggestions regarding your new probe after reading please do not hesitate to contact our authorised dealers or IMKO directly We will gladly help you List of Content 1 Instrument Description 5 2 442224 4022 4 1 1 1 The patented TRIME TDR Measuring Method enne 4 1 1 2 TRIME compared to other Measuring Methods n 4 1 1 3 Areas of Application for the SONO SILO Probes 4 12 5 1 2 1 Measurement value collection with pre check average value and filtering 5 1 2 2 Determination of the mineral Concentration 5 1 2 8 Temperature Measurement 5 22 ME NN 5 1 2 5 The serial
32. alibration coefficients can be entered and stored in the SONO probe by hand with the help of SONO CONFIG The charts Cal 1 15 in the next two pages show different selectable calibration curves which are stored inside the SONO probe Plotted is on the y axis the gravimetric moisture MoistAve and on the x axis depending on the calibration curve the associated radar time tpAve in picoseconds With the software SONO CONFIG the radar time tpAve is shown on the screen parallel to the moisture value MoistAve see Quick Guide for the Software SONO CONFIG In air SONO probes measure typically 60 picoseconds radar time IMKO MERCMOOUTEOPAR Y c 40 350 tpAve Radartime in Picoseconds 300 11 250 i A BB J _ TT TT 200 150 TT TT TT LL 11 11 111 1111 1111 111 1 11 TET TET TET TT JIPPI gg BER See Se See Pees PIPPI
33. alue A D c1 14811 8126 0 005685 38 Liter Because the SONO SILO measures moisture precise also with different grain size distribution it is possible to calculate with a standard c1 Sensitivity for similar recipes For very different recipes e g recipes with colouring agents or other added special materials it is recommended to check the c1 Sensitivity and if necessary determine a new c1 Sensitivity For partial quantities you have only to multiply the calculated mixing water value with the partial percentage value e g for an 80 partial quantity multiply 38 liter 0 8 30 4 liter for the mixing water subject to a correction for partial quantities The efforts and expenses for preparation additional parameters for different recipes inside a PLC should be easy and manageable when using this method IMKO Y GER 23 40 4 Connectivity to SONO Probes Appenb pue Asea aq ue aqo d o squaw 4snlpe 5 3NO2 ONOS MEMOS uoneulquio eu 3AOW ONOS ue o jo gt OJ o durexo 104 qodd MESIUNLULUCD pue e eqoad ONOS JNOA 290002 ue no 501 405 3U us TEIG ASN WS 34 011403 IDM 5 eo 1 _ lt gt zi Kejdsiq q3
34. ample calculation for a linear calibration curve with the coefficients mO and m1 for a specific material MKO yt 20 40 4 05 t Ave Radartime in Picoseconds The coefficient is calculated from the slope of the curve Cal14 Delta y 25 0 Coefficient M4 0 0581 500 70 The coefficient mg is the offset on the y axis at x 0 Coefficient mg 2 m4 X2 25 0 0581 500 4 05 IMKOV 21 40 3 2 How to perform a calibration with SONO SILO or SONO MIX for determination of water content in 3 easy steps The mixer probe SONO SILO can measure water content precise also in wet mixtures with higher cement contents Therefore it opens up completely new possibilities for the calibration of the SONO SILO in mixer control system In this example we show new method where kiln drying of concrete samples is not necessary for a calibration of SONO MIX Furthermore the creation of different recipes should be easier The calculation of water content can be done with PC or with In the following example both options are shown however only the PLC option is calculated with numbers A D Converter PLC Determination of water content in a PC or in a PLC Measurement values in a PC without unit A D Converter PLC Measurement values without unit e g from 0 Measurement values to 32768 without unit in the range of Oto 25 0 4 20mA current o
35. d The delivery scope of SONO SILO includes suited parameters for the averaging period and a universally applicable filter function deployable for currently usual applications The time for the average value accumulation as well as various filter functions can be adjusted for special applications 1 2 2 Determination of the mineral Concentration With the radar based TRIME measurement method it is now possible for the first time not only to measure the moisture but also to provide information regarding the conductivity respectively the mineral concentration or the composition of a special material Hereby the attenuation of the radar pulse in the measured volume fraction of the material is determined This novel and innovative measurement delivers a radar based conductance value RbC Radar based Conductivity in dS m as characteristic value which is determined in dependency of the mineral concentration and is issued as an unscaled value The RbC measurement range of the SONO SILO is 0 12dS m 1 2 3 Temperature Measurement A temperature sensor is installed into the SONO SILO which establishes the casing temperature beneath the electronic housing see point 2 2 The temperature can optionally be issued at the analogue output 2 As the TRIME electronics operates with a power of approximately 1 5 W the probe casing does slightly heat up A very precise measurement of the material temperature is therefore only possible to a certain degree and o
36. ent grading ranges with standard calibration curve Cal1 Grading range Moisture A value of 0 moisture Moisture value at 20mA and bulk value at 4mA thus conforms to an output current at the density current at the output current in mA at analog output in kg dm analog output the analog output of theoretically Please note The guide values only apply for sand For measuring gravel and grit with different gradings it is recommend to use the standard calibration curve l e 0 4 20mA corresponds to 0 20 moisture IMKO 16 40 3 Calibration Curves SONO SILO is supplied with a universal calibration curve for sand Cal1 Universal Sand Gravel Grit A maximum of 15 different calibration curves CAL1 Cal15 are stored inside the SONO probe and can optionally be activated via the program SONO CONFIG A preliminary test of an appropriate calibration curve 15 can be activated in the menu Calibration and in the window Material Property Calibration by selecting the desired calibration curve Cal1 Cal15 and with using the button Set Active Calib The finally desired and possibly altered calibration curve 15 which is activated after switching on the probes power supply will be adjusted with the button Set Default Nonlinear calibrations are possible with polynomials up to 5th grade coefficients mO m5 IMKO offers more suitable calibration coefficients for different materials These c
37. erage of the SONO probe are displayed on the screen and can be parallel saved in a file In the menu Test and the window Test in Mode CS the measured single measurement values Moist 5 values per second of the SONO probe are displayed on the screen and parallel stored in a file In Test in Mode A single measurement values without average are displayed on the screen and can also be stored in a file Attention for a test run in mode CA CF CS or A it must be ensured that the SONO probe was also set to this mode Measure Mode CA CF CS A If this is not assured the probe returns zero values Test in Mode Cyctic TOR 50 00 91 07 4 222 88 7 50 7 5 7 5 7 50 11 40 2014 7 3 26 50 50 00 91 07 gt 222 60 7 57 90 7 L 00 91 0 11032014 7 4 26 50 50 00 91 00 4 221 74 8 10 7 5 7 757 920 910 11 02 2014 7 26 20 55 00 90 93 20 r 50 715 7 9 1 00 910 319 1 51 03 2014 46 26 20 50 00 21 00 3 221 33 7 50 7 7 1 00 91 0 11 02 2014 7 42 26 2 50 00 91 00 221 56 7 44 5 32 7 50 31 0 91 0 18013 21114 7 62 26 2 amp 0 91 07 3 222 30 75 7 7 5 1 00 2 0 910 11 02 2014 26 50 00 91 1 222 82 7 44 2 7 1 00 92 0 16 04 00 11 03 2014 7 57 5 20 5000 91 1 222 58 7 57 7 5 751 7 44 AO 91 0 16 03 59 11 03 2014 7 6 26 20 50 00 91 21 3 223 50 7 5 7 5 7 1 00 91 0 16 09 58 11 03 2014 di 26 20 50 00 91 21 221 44 7 5 7 97 Sl 91 0 16 03 57 14032014 26 00 50 00 91 21 gt 223 60 7 5 8 0 75 1 00 92 0
38. for finding a best average value The result is the second calibration point P2 with X2 Y2 e g 500 25 l e tpAve of 500ps corresponds to 25 moisture content The gravimetric moisture content of the material e g 2596 has to be determined with laboratory measurement methods oven drying Step 3 With the two calibration points P1 and P2 the calibration coefficients 0 and m1 can be determined for the specific material see next page To calculate nonlinear coefficients for polynomials up to 5 order the software tool TRIME WINCal of IMKO can be used upon request Step 4 The coefficients m1 0 0581 and 4 05 see next page for the calibration curve Cal14 can be entered directly by hand and are stored in the probe by pressing the button Set The selected calibration curve e g Cal14 which is activated after switching on the probes power supply will be adjusted with the button Set Default Calib 3 1 2 Nonlinear Calibration Curves SONO probes can also work with non linear calibration curves with polynomials up to 5th grade Therefore it is necessary to calibrate with 4 8 different calibration points To calculate nonlinear coefficients for polynomials up to 5th grade an EXCEL software tool from IMKO can be used on request It is also possible to use any mathematical program like MATLAB for finding a best possible nonlinear calibration curve with suitable coefficient parameters mO to m5 The following diagram shows a s
39. hoppers silos dryers and mixers e The SONO SILOsStandard is suited for measuring of abrasive materials The probe head consists of stainless steel with a rectangular ceramic window SONO SILOxtrem is suited for measuring moisture of fresh concrete in intensive mixers The probe head has rectangular window with high abrasion resist Si3O4 ceramic 5 40 1 2 Mode of Operation 1 2 1 Measurement value collection with pre check average value and filtering SONO probes measure internally at very high cycle rates of 10 kHz and update the measurement value at a cycle time of 250 milliseconds at the analogue output In these 250 milliseconds a probe internal pre check of the moisture values is already carried out i e only plausible and physically checked and pre averaged single measurement values are be used for the further data processing This increases the reliability for the recording of the measured values to a downstream control system significantly In the Measurement Mode CS Cyclic Successive an average value is not accumulated and the cycle time here is also 200 milliseconds In the Measurement Mode CA CF and CK not the momentarily measured individual values are directly issued but the floating average value is accumulated via a variable number of measurements in order to filter out temporary variations These variations can be caused by inhomogeneous moisture distribution in the material surrounding the sensor hea
40. ly deployable filter function suited for most currently applications The setting options and special functions of SONO probes depicted in this chapter are only rarely required It is necessary to take into consideration that the modification of the settings or the realisation of these special functions may lead to faulty operation of the probe For applications with non continuous material flow there is the option to optimise the control of the measurement process via the adjustable filter values Filter Lower Limit Filter Upper Limit and the time constant No Material Keep Time The continual floating averaging can be set with the parameter Average Time Filler Parameter in the Function Measurement Mode CA and CF Average Time The time in seconds for the generation of the Continual Floating Average Value continual floating average value can be set with T MKO y Standard Setting 3 this parameter Setting Range 2 20 Filter Upper Limit Too high measurement values generated due to Standard Setting 3 metal wipers or blades are filtered out The Setting Range 1 1 5 upper limit is set in For a moisture value reading of e g 8 the upper limit is thus 8 3 11 Upper Limit Keep Time The maximum duration in seconds of the filter Standard Setting 4 function for Upper Limit failures too high Setting Range 2 10 measurement values can be set with this parameter Filter Lower Limit Too low measurement values
41. nly when the electronic housing is completely is completely surrounded by the material The material temperature can be determined after an external calibration and compensation of the sensor self heating 1 2 4 Analogue Outputs The measurement values are issued as a current signal via the analogue output With the help of the service program SONO CONFIG the SONO SILO can be set to the two versions for 0 20mA or 4 20mA Furthermore it is also possible to variably adjust the moisture dynamic range e g to 0 10 0 20 0 30 or any other range For a 0 10V DC voltage output a 500R resistor can be installed in order to reach a 0 10 output Analogue Output 1 Moisture in 0 20 variable adjustable Analogue Output 2 Conductivity RbC or optionally the temperature In addition there is also the option to split the analogue output 2 into two ranges into 4 11mA for the temperature and 12 20mA for the conductivity The analogue output 2 hereby changes over into an adjustable one second cycle between these two current measurement windows 6 40 For the analogue outputs 1 2 there are thus two adjustable options Analog Output two possible selections 0 20mA 4 20mA Output Channel 1 and 2 three possible selections 1 Moist Temp Analogue output 1 for moisture output 2 for temperature Or 2 Moist Conductivity Analogue output 1 for moisture output 2 for conductivity in a range of 0 20dS m
42. obe returns zero values After a Basic Balancing the SONO probe has to be set to Measure Mode C again because otherwise the probe would not measure continuously In the menu Calibration and the window Basic Balancing the two set point values of the radar time tp are displayed with 60ps and 1000ps 1 Reference set point A tp 60ps in air the surface of the probe head must be dry The first set point can be activated with the mouse pointer by clicking to No 1 By activating the button Do Measurement the SONO probe determines the first reference set point in air In the column MeasValues the measured raw value of the radar time t is displayed e g 1532 05 picoseconds 2 Reference set point B tp 1000ps in water The SONO probe head has to be covered with water in a height of about 50mm The second set point can be activated with the mouse pointer by clicking to No 2 By activating the button Do Measurement the SONO probe determines the second reference set point in water In the column MeasValues the measured raw value of the radar time t is displayed 3 By activating the button Calculate Coeffs and Coeffs Probe the alignment data is calculated automatically and is stored in the SONO probe non volatile With a Test run in Mode A the radar time tp of the SONO probe should be now 60ps in air and 1000ps in water Basic Balancing Calculated File Probe 1544 41 bl 1 04735 Do Measurement
43. obes surface Otherwise the moisture zero point of the probe will be shifted up and the probe would not be detect a moisture low value below the Moisture Threshold Following possible parameter settings in mode CC inside the SONO probe can be set Moisture Threshold The accumulation of moisture values starts above the in moisture Moisture Threshold the analogue signal is Standard Setting 1 output The accumulation pauses if the moisture level Setting Range 1 20 is below the threshold value No Material Delay The accumulation stopps if the moisture value is below in seconds the moisture threshold The SONO probes starts Standard Setting 5 again in a new batch with a new accumulation after the time span of the No Material Delay is exceeded Setting Range 1 20 The first batch process stops The The last freezed summerized and SONO probe recognizes that the averaged moisture value is freezed measurement value is below the at the analogue output until the No moisture threshold of 1 and the Material Delay time of e g 5 probe stops automatically with the seconds has expired and a new summation yellow curve batch process starts Short interruptions were bridged Characteristic of moisture curve in sand adjustable No Material Delay e g 5 seconds gre Moisture e EN PI e
44. omials up to the 5 order are possible and can be downloaded into the sensor with the SONO CONFIG software Download per Internet A zero point correction can be performed easily with the SONO CONFIG software COMMUNICATION A 5485 interface enables network operation of the sensor whereby a data bus protocol for the connection of several SONO sensors to the RS485 is implemented by default The connection of the sensor to industrial busses such as Profibus Ethernet etc is possible via optional external modules available upon request POWER SUPPLY 7V to 24V DC 1 5 W max AMBIENT CONDITIONS 0 70 On request High temperature version with external measurement transformer MEASUREMENT FIELD EXPANSION Approximately 50 80 mm depending on material and moisture CONNECTOR PLUG The sensor is equipped with a robust 10 pole MIL flange connector Ready made connection cables with MIL connectors are available in the lengths 4m 10m or 25m 39 40 40 40 Precise Moisture Measurement industry hydrology forestry agriculture environmental and earth science civil engineering as well as individual applications
45. ry to conventional capacitive or microwave measuring methods the TRIME technology Time Domain Reflectometry with Intelligent Micromodule Elements does not only enable the measuring of the moisture but also to verify if the mineral concentration specified in a recipe has been complied with This means more reliability at the production TRIME TDR technology operates in the ideal frequency range between 600MHz and 1 2 GHz Capacitive measuring methods also referred to as Frequency Domain Technology depending on the device operate within a frequency range between 5MHz and 40MHz and are therefore prone to interference due to disturbance such as the temperature and the mineral contents of the measured material Microwave measuring systems operate with high frequencies 2GHz At these frequencies nonlinearities are generated which require very complex compensation For this reason microwave measuring methods are more sensitive in regard to temperature variation SONO probes calibrate themselves in the event of abrasion due to a novel and innovative probe design This consequently means longer maintenance intervals and at the same time more precise measurement values The modular TRIME technology enables a manifold of special applications without much effort due to the fact that it can be variably adjusted to many applications 1 1 3 Areas of Application for the SONO SILO Probes The SONO SILO probe is suited for installation into containers
46. t Keep Time of 5 seconds In this way the material gap can be bridged This powerful function inside the SONO probe works here as a highpass filter where the higher moisture values are used for building an average value and the lower or zero values are filtered out In the following this function is described with SONO parameters oufficient material for an accurately moisture measurement value of e g 8 Material gaps over e g 3 seconds which must be bridged for an accurately measurement with a Lower Limit Keep Time of 5 seconds The following parameter setting in mode CA fits a high pass filtering for bridging material gaps IMKO 10 40 Average Mode under Mode CA Cuclic Average Average Parameters Average Time s EMEN Filter Upper Limit Offset 20 Filter Lower Limit Offset 2 0000 Upper Limit Keep Time mo Lower Limit Keep Time Bo 0 The Filter Upper Limit is here deactivated with a value of 20 the Filter Lower Limit is set to 296 With a Lower Limit Keep Time of 5 seconds the average value will be frozen for 5 seconds if a single measurement value is below the limit of 296 of the average value After 5 seconds the average value is deleted and a new average value building starts The Keep Time function stops if a single measurement value lies within the Limit values 2 1 3 Mode CC automatic summation of a moisture quantity during one batch process Simple PLCs are often unable to record moisture measurement
47. ture value By clicking Save the recorded data is saved in a text file in the following path SONO CONFIG exe Pfad MD Dateiname The name of the text file Statis SN yyyymmddHHMMSS sts is assigned automatically with the serial number of the probe SN and date and time The data in the text file can be evaluated with Windows EXCEL 5 1 6 Measure run in Datalogger Operation In the menu Measure it is possible to aquire and store measurement data from several SONO probes with variable and longer cycle rates in a datalogger operation e g to store measurement data during a long term drying cycle IMKOVA 31 40 5 1 7 Basic Balancing in Air and Water SONO probe heads are identical and manufactured precisely After an exchange of a probe head it is nevertheless advisable to verify the calibration and to check the basic calibration and if necessary to correct it with a Basic Balancing With a Basic Balancing two reference calibration measurements are to be carried out with known set points RefValues For the reference media different calibration materials are used dependent the SONO probe type For SONO probes with a ceramic measurement window air and water tap water is used For other SONO probes like SONO GS1 glass beads are used for basic calibrations on request Attention Before performing a Basic Balancing it must be ensured that the SONO probe was set to Measure Mode If this is not assured the pr
48. utput signal Recommended way In this example the SONO SILO has to be calibrated with a PLC for a concrete recipe with a specification of a setpoint wc value of 0 385 water cement With a binder content of 180kg the setpoint for the water content for the concrete results in 62 1 liter 1 Record measurement values in the PLC for the dry mixture i e the mixture has a relative low water content It is recommended to average the values of the PLC over the last 5 seconds of the dry mixing time In this example a measurement value of 8126 has been recorded SONO SILO Measurement A D Converter Water content Measurement value in a PC PLC values without without unit without unit from unit from 0 to max 32768 4 20mA current output signal Measurement 7 968 mA 8126 values dry This is the not yet mixture Dry value A D nel Measurement values wet mixture 2200 MKO y 2 Add water manually into the mixture e g 38 liter mixing water Add manually as much water as the concrete recipe has the desired consistency The added and measured water content is later used for the calculation of the c1 Sensitivity of the SONO SILO for this recipe When the mixture has the optimal consistency record the measurement values with the PLC in the wet mixture It is recommended to average the values over the last 5 seconds of the wet mixing time In this example a measurement value of 14811 has been recorded with the PLC
49. values during one batch process with averaging and data storage Furthermore there are applications without a PLC where accumulated moisture values of one batch process should be displayed for a longer time to the operating staff Previously available microwave moisture probes on the market show three disadvantages 1 Such microwave probes need a switching signal from a PLC This increases the cabling effort 2 Time delays can occur during the summation time with a trigger signal This is particularly disadvantageous for small batches Recipe errors can occur 3 Material gaps during one batch process will lead to zero measurement values which falsify the accumulated measurement value considerably Recipe errors can occur Unlike current microwave probes SONO probes work in mode CC with automatic summation where it is really ensured that material has contact with the probe This increases the reliability for the moisture measurement during one complete batch process The summation is only working if material fits at the probe Due to precise moisture measurement also in the lower moisture range SONO probes can record accumulate and store moisture values during a complete batch process without an external switching or trigger signal The SONO probe freezes the analogue signal as long as a new batch process starts So the PLC has time enough to read in the freezed moisture value of the batch For applications without a PLC the freezed signal
50. y The K parameter is related to the Average Time It is recommended to leave this parameter to the default setting 2 1 1 Average Time in the measurement mode CA and CF SONO SILO establishes every 200 milliseconds a new single measurement value which is incorporated into the continual averaging and issues the respective average value in this timing cycle at the analogue output The averaging time therefore accords to the memory of the SONO SILO The longer this time is selected the more inert is the reaction rate if differently moist material passes the probe A longer averaging time results in a more stable measurement value This should in particular MKO be taken into consideration if the SONO SILO is deployed in different applications in order to compensate measurement value variations due to differently moist materials At the point of time of delivery the Average Time is set to 4 seconds This value has proven itself to be useful for many types of applications At applications which require a faster reaction rate a smaller value can be set Should the display be too unstable it is recommended to select a higher value The Average Time can be adjusted with the service program SONO CONFIG 2 1 2 Filtering at material gaps in mode CA or CF A SONO probe is able to identify if temporarily no or less material is at the probe head and can filter out such inaccurate measurement values Filter Lower Limit Particular

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