User Manual SONO-GS1
Contents
1. 0002 000 22 40 Calibration Recommended Bulk Application Curve for grain type density of grain type Maize without TC Installation at the discharge hopper The outfeed is TC batch by batch and it is not secured that the SONO Temperature GS1 is continually covered with grain Compensation Cal2 Maize with TC A An installation at the beginning of the heating zone is not allowed due to high temperature range pre setted after delivery B Installation at the discharge hopper The outfeed is continually and the SONO GS 1 is continually covered with grain Cal9 ape and oilseeds 0 65 No temperature compensation necessary without TC Cal10 Sunflower seeds 0 30 No temperature compensation necessary without TC Cal11 Soya without TC 0 65 Special calibration curve 12 Soya with 0 65 Special calibration curve Cal13 Cal14 Cal15 1 10 tp Radar time and reference calibration for test 4 2 1 Selection and application of the reference method In order to adjust the SONO GS 1 for precise absolute measurements at the discharge an off line measurement method must be available to serve as a reference It must provide a high degree of absolute precision and function with large sample volumes Most commercially available grain moisture measuring systems leave a great deal to be desired regarding both of these aspects The SONO GS1 measures the average val2. 17 4 1 SONO GS1 for Measuring Moisture in 20 4 1 1 Adjustments for initial 24 200000 0 20 4 1 2 Selection of the calibration curve to 20 4 1 8 Calibration curves with or without temperature compensation 20 3 40 4 2 Calibration Curves to 5 21 4 2 4 Selection and application of the reference 4 22 4 2 2 Recording measurement data in trial 23 4 2 3 Setting the calibration curve adjustment 23 42 4 An example for wheat ED De ei eee cue LE n 24 4 3 Creating a linear Calibration Curve for a specific 24 4 3 1 Nonlinear calibration 25 Connectivity to SONO 27 5 1 1 Connection Plug and Plug 28 5 1 2 Analogue Output 0 10V with 29 5 1 3 Connection diagram with 29 5 2 Connection o
3. IMP Average Parameters Average Time s C RS485 Filter Upper Limit Offset Filter Lower Limit Offset Upper Limit Keep Time Lower Limit Keep Time Moisture Threshold 1 No Material Delay s Boost Offset Weight Invalid Measure Count Set 6 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 20mA 4 20m 20 0m C 204 Dutput Channels Moist Temp Moist Conduct Moist Temp Conduct Moisture Range Temperature Range 5 em Maximum 25 Set Maximum 100 Set 0 20 0 50 o Set Minimum Minimum 0 Set Simulate 34 40 6 1 4 Selection of the individual Calibration Curves In the menu Calibration and the window Material Property Calibration the calibration curves CAL1 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
4. Material Property Calibration k m Calibration Item Please select one calibration from to Cal15 to operate Set Active Calib CalDP 7 MatiD P TemiD P DeniD P Default Calibration 0 00000 Calibration 00000 00000 00000 1 06035 Universal Sand Mix 06035 06000 06000 1 2 06040 Lime Sand Linear 06040 06000 06000 3 06041 CementPowder 06041 06000 06000 Set Default Calib 4 06042 wood Pellets 06042 06000 06000 5 05043 Wheat 05043 05000 06000 5 06044 06044 06000 05000 7 06045 Suger 06045 06000 06000 niversal S and Mix 8 06046 Brown coal granulate 06046 06000 06000 3 05047 SONO MIX 06047 06000 06000 Set 10 06048 Expanded clay 06048 06000 06000 11 06049 Lightly sand 06043 06000 06000 Material Coeffs 3 Temp Coeffs 12 06050 Sewage sludge 06050 06000 06000 13 06054 Ceramic Suspension 06054 06000 06000 5 5 20 14 06058 to Water 06058 0650001 06000 m1 0 05 0 15 06053 15 06053 06000 06000 m2 0 0 The desired and possibly altered calibration curve 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 wit
5. 10096 Moisture Range Temp Range Maximum e g 20 for sand Set in Maximum 70 C Minimum 0 Minimum 0 3 1 1 85485 SONO probes are equipped with a standard 5485 as well as the IMP Bus interface to set and readout individual parameters or measurement values An easy to implement data transfer protocol enables the connection of several sensors probes at the RS485 Interface In addition SONO probes can be directly connected via the module SM USB or the display module SONO VIEW to the USB port of a PC in order to adjust individual measuring parameters or conduct calibrations Please consider The initial default setting of the serial interface is pre setted for the IMP Bus To operate with the RS485 inside the SONO probe it is necessary to switch and activate the RS485 interface with help of the modul SM USB or SONO VIEW In the download area of IMKO s homepage www imko de we publish the transmission protocol of the SONO probes 3 1 2 The IMP Bus as a user friendly network system With external power supply on site for the SONO probes a simple 2 wire cable can be used for the networking By use of 4 wire cables several probes can be also supplied with power Standard RS485 interfaces cause very often problems They are not galvanically isolated and therefore raises the danger of mass grindings or interferences which can lead to considerably security problems An RS485
6. 0 1 0 1 Threshold No Material 10 10 inactiv Delay Boost 35 20 20 Offset 0 5 1 1 Weight 5 25 50 Invalid 2 inactiv inactiv Measure Count For very difficult applications where it is not certain which mode is the best we recommend to select mode 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 y 17 40 4 Calibration Curves SONO GS1 is supplied with a universal calibration curve for sand Cal1 Universal Sand Mix maximum of 15 different calibration curves CAL1 Cal15 are stored inside the SONO probe 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 Calib Nonlinear calibrations are possible with polynomials up to 5th grade coefficients mO m5 IMKO publish on its website more suitable calib
7. 7 9 90 0 2620 5000 91 07 3 3 75 74 75 91 0 26 29 50 00 1 14 3 2 74 7 5 91 0 26 20 56 00 91 14 E 7 57 7 51 7 51 91 0 26 20 50 00 91 21 1 754 751 7 91 0 26 20 50 00 91 21 223 7 51 7 44 79 7 5 91 0 92 0 26 00 50 00 91 21 3 75 75 91 0 92 91 0 11 02 2014 7 57 26 00 5200 91 14 3 7 51 91 0 1103 2014 7 5 26 00 50 00 91 1 4 9 7 7 91 0 11 052 7 50 00 91 07 3 51 92 0 1148 2 7 50 00 90 93 3 23 7 51 7 51 91 0 L 5 50 00 7 1 7 5 5 91 0 16 03 51 146 2 7 5 5 00 3 7 54 7 751 1 0 16 03 50 11 4032 7 5 5200 7 7 06 745 7 91 0 10 09 49 0 00 91 25 3 5 76 75 9 1 0 gt 92 0 15 03 48 11 08 7 57 26 08 50 00 9 3 7 96 4 7 45 92 0 16 03 47 7 5 5000 5 5 7 3 91 0 91 0 16 03 46 1t 7 5 25 70 50 00 3 745 79 7 52 752 91 0 920 0 160245 11 032 7 5 7 50 00 3 16 03 44 14092 7 5 50 00 16 03 43 7 5 5200 16 03 42 1140 2014 7 62 257 5710 16 03 43 11 03 2014 7 25 50 50 00 16 03 40 2014 gt 0 16 03 99 10403 2014 7 50 00 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 moisture value By clicking Save the recorded data is saved in a text file in the following path XSO
8. adjust depending on grain type A zero offset of SONO GS1 could be also necessary due to installation place If the outfeed is continually and the SONO GS 1 is continually covered with grain then the calibration curve has to be selected with TC Temperature Compensation However if the outfeed is batch by batch then the calibration curve has to be selected without TC because the temperature sensor at the rod tip of the GR probe measures most of the time the air temperature not the grain temperature which would lead to measurement failures The following charts Cal 1 Cal15 show different selectable calibration curves which are stored inside the SONO GS1 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 IMKO MECROMCOULTECHNIE 21 40 4 2 Calibration Curves to Cal15 di 2 09 9 efos uaunjquauuos pun sdey 2 09 215199 315135 2 09 pw S se ML 8 803 W STEN 2 uonesuaduioxy4nje18duia pun
9. detect a moisture low value below the Moisture Threshold 15 40 In mode CC following possible parameter settings be set inside the SONO probe Parameter mode CC Function The accumulation of moisture values starts above the Moisture Threshold in moisture Standard Setting 1 Setting Range 1 20 Moisture Threshold and the analogue signal is output The accumulation pauses if the moisture level is below the threshold value No Material Delay in seconds Standard Setting 5 Setting Range 1 20 The accumulation stopps if the moisture value is below the moisture threshold The SONO probes starts again in a new batch with a new accumulation after the time span of the No Material Delay is exceeded The first batch process stops The SONO probe recognizes that the measurement value is below the moisture threshold of 1 and the probe stops automatically with the summation yellow curve 5 Short interruptions 5 were bridged 2 fi a z Ee 596 Characteristic of moisture curve in sand 1 Adjustable Start of first batch process The SONO probe recognizes that the adjustable moisture threshold of e g 1 has been exceeded and the probe starts automatically with the continuous accumulation of measurement values yellow curve The last freezed summerized and averaged moisture value is freezed at the analogue output unti
10. not until the moisture at the discharge point falls below 1896 that the measurements become of real interest and can be used for the adjustment process Analysis can start as soon as about 10 to 20 measurements are available in the range from 12 to 18 wm e wem wm wm 9 m 8 wm 3 7 13 996 14 0 13 3 13 5 4 3 Creating a linear Calibration Curve for a specific Material The calibration curves 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 calibration curves CAL1 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 wit
11. 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 Parameters in the Measurement Mode CA CF and CK Function Average Time Standard Setting 10 Setting Range 1 20 The time in seconds for the generation of the average value can be set with this parameter Filter Upper Limit Offset Standard Setting 5 Setting Range 1 20 With the setting of 20 this parameter must be disabled for Mode CK Too high measurement values generated due to metal wipers or blades are filtered out The offset value in is added to the dynamically calculated upper limit Filter Lower Limit Standard Setting 2 Setting Range 1 20 With the setting of 20 this parameter must be disabled for Mode CK Too low measurement values generated due to insufficient material at the probe head are filtered out The offset value in is subtracted from the dynamically calculated lower limit with the negative sign Upper Limit Keep Time Standard Setting 5 Setting Range 1 100 With the setting of 100 this parameter must be disabled for Mode CK The maximum duration in seconds of the filter function for Upper Limit failures too high measurement val
12. 485 interface and the IMP Bus enables network operation of the probe whereby a data bus protocol for the connection of several SONO probes to the serial interface is implemented by default The connection of the probe 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 version with higher temperature range 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 cable lengths of 4m 10m or 25 m 39 40 Precise Moisture Measurement in hydrology forestry agriculture environmental and earth science civil engineering as well as individual applications 1 _ 1 1 2_2 4
13. NO 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 6 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 MKO y 36 40 6 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 on 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 A If this is not assured the probe returns zero values After a Basic Balancing the SONO probe has to be set to Measure Mode C aga
14. USB via serial interface and power supply Check the setting of the COM Ports in the Device Manager und setup the specific COM Port with the Baudrate of 9600 Baud in SONO CONFIG with the button Bus and Configuration COM1 15 is possible e Start Scan probes in SONOConfig The SONO probe logs in the window Probe List after max 30 seconds with its serial number IMKO 31 40 V Note 1 In the Device Manager passes it as follows Control Panel gt System gt Hardware Device Manager ES Gerdte Manager Datei Aktion Ansicht e Acronis Devices E Anschl sse COM und LPT 7 ECP Druckeranschluss LPT1 Under the entry Ports COM amp LPT now the 7 Intel R Active Management Technology SOL 20 item USB Serial Port COMX is found 2 Kommunikationsanschluss COMI 7 Prolific USB to Serial Bridge 2 7 Prolific USB to Serial Bridge COM3 7 Standardmafigige Seriell ber Bluetooth Verbindung 14 7 Standardmafgige Seriell ber Bluetooth Verbindung 15 7 StandardmaBgige Seriell ber Bluetooth verbindung 16 E Standardm figige Seriell ber Bluetooth Verbindung 17 7 Standardmafigige Seriell ber Bluetooth Verbindung 18 Y 58 Serial Port 4 Audio Video und Gamecontroller 3 Bildbearbeitungsgerate 8 6 Bluetooth Funkgerate set must be betwe
15. User Manual SONO GS1 SONO GS1 for heterogeneous bulk goods with higher grain sizes like wood chips granulates pasta and other materials IMKO Micromodultechnik GmbH Phone Im Stoeck 2 Fax D 76275 Ettlingen e mail http I publik TECH_MAN TRIME SONO ENGLISH SONO GS1 SONO GS1 MAN Vers2_2 english doc 49 0 7243 5921 0 49 0 7243 90856 info imko de www imko de MKO 2 40 User Manual for SONO GS1 As of 8 September 2014 Thank you for buying an IMKO moisture probe Please carefully read these instructions in order to achieve best possible results with your SONO GS1 probe 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 91 4 1 1 1 The patented TRIME TDR Measuring Method seen 4 1 1 2 TRIME compared to other Measuring Methods 4 1 1 8 Areas of Application with 051 4 2 Installation of the 5 24 Assembly Instr ctiOns iuit certet A ev kk 5 2 2 Assembly 2 4 22 2 1 0001 1 6 2 3 In
16. analogue output With the help of the service program SONO CONFIG the SONO GS1 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 109256 0 20 or 0 30 For a 0 10V DC voltage output a 500R resistor can be installed in order to reach a 0 10V output Analogue Output 1 Moisture in 96 0 2096 variable adjustable Analogue Output 2 Conductivity 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 For the analogue outputs 1 and 2 there are thus two adjustable options Analog Output two possible selections IMKO y 9 40 0 20mA 4 20mA Output Channel 1 and 2 three possible selections 1 Moist Temp Analogue output 1 for moisture output 2 for temperature 2 Moist Conductivity Analogue output 1 for moisture output 2 for conductivity in a range of 0 20dS m 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
17. d be set to the best possible value which is the nearest to the reference value In the following you will find a ready to use form for entering the measurements Where continuous flow dryers are concerned at least 10 to 20 measurements should be available in the range between the minimum and maximum permissible moisture content after drying The measurements from the still very damp discharged grain during the charge phase should be noted but not used for the purposes of adjustment For rotary dryers only the measurements take towards the end of the drying process are of relevance to adjustment Here too at least 10 measurements are to have been documented Density and moisture distribution effects in the grain can cause too low measurements during the first one to two hours These values should not be used for the adjustment 4 2 3 Setting the calibration curve adjustment The appropriate setting of the calibration curve should be determined on the adjustment protocol Only the measurements near the target moisture should be taken into account 24 40 4 2 4 An example for wheat Note SONO GS is pre installed to calibration curve for wheat A continuous flow dryer is to be set for wheat A SONO GS1 has been installed whose probe is located in the direct vicinity of the discharge point To start with the calibration curve is set to Cal for wheat The dryer is started up and measurement recording commences It is
18. djusted in real operation or in realistic trial operation The following description is based on the implementation of the SONO GS 1 at the discharge in the delivery or in the storage area As a general rule only the moisture range close to the reference input is of significance for trial operation i e when determining the switch position for maize checking should be done at about 15 It is more important that the SONO GS 1 is exactly correct in the lower area of measurement It is of less importance whether SONO GS1 measures 26 instead of 28 in the upper range When extracting a sample or checking the lower reference input e g 15 a single sample is of course insufficient A single sample possibly even extracted from quite a different point than in the direct vicinity of the probe is not at all representative i e several samples must be taken directly at the probe and averaged At the start of trial operation the suitable calibration curve can be set When all the preparations for extracting samples and measuring them have been made the grain dryer can be started up Now a sample of grain must be taken continuously ideally every 15 minutes The SONO GS1 reading and the selected calibration curve are to be noted simultaneously with every extracted sample This is compared with the appropriate offline determined reference value which is also to be noted As soon as the moisture is near the target moisture the calibration curve shoul
19. dule SONO VIEW which are available from IMKO The following settings of SONO GS1 can be amended with the service program SONO CONFIG Measurement Mode and Parameters e Measurement Mode A On Request only in network operation for the retrieval of measurement values via the serial interface e Measurement Mode C Cyclic SONO GS1 is supplied ex factory with suited parameters in Mode CS for bulk goods Mode CS Cyclic Successive For very short measuring processes e g 5 20 seconds without floating average with internal up to 100 measurements per second and a cycle time of 250 milliseconds at the analogue output Measurement mode CS can also be used for getting raw data from the SONO probe without averaging and filtering Mode Cyclic Average Filter For relative short measuring processes with continual average value filtering and an accuracy of up to 0 196 Mode CF Cyclic Float Average for continual average value with filtering and an accuracy of up to 0 1 for very slowly measuring processes e g in fluidized bed dryers conveyor belts etc Mode CK Cyclic Kalman Filter Standard setting for SONO MIX for use in fresh concrete mixer with continual average value with special dynamic Kalman filtering and an accuracy of up to 0 196 Mode CC Cyclic Cumulated with automatic summation of a moisture quantity during one batch process e Calibration if completely different materials are deployed Each of these settings will b
20. e preserved after shut down of the probe and is therefore stored on a permanent basis 3 3 Operation Mode CA and CF at non continuous Material Flow For mode Ca and CF the SONO GS1 is supplied ex factory with suited parameters for the averaging time and with a universally deployable filter function suited for most currently applications The setting options and special functions of the SONO GS 1 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 11 40 Detection of malfunctions the probe head For mode CA and CF the SONO probes are supplied ex factory with suited parameters for the averaging time and with a universally 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
21. e 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 bi x Exit Bus Help Dec 6 1 1 Scan of connected SONO probes on 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 Probe List a Exit Config Calibration Test SenaNo ResetBaudrate 1 120613 IMKO 33 40 MECROMCOUTECHNKE 6 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 CA 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 Measure Mode amp Parameters Actual Cycle Mode Cyclic x Average Mode of Mode Average v Select Bus Kalman with Boost lo Yes C IMP amp 5485 Offset with Moist amp ve 10
22. ellow yellow F RS485 A has to be activated white G RS485 B has to be activated brown brown rt IMP Bus grey pink grey pink J com IMP Bus blue red blue red K 2 Analogue Positive Pink Pink E 2 Analogue Return Line Grey Grey H Screen transparent transparent is grounded at the sensor The plant must be properly grounded IMKO 29 40 5 1 2 Analogue Output 0 10V with Shunt Resistor There are PLC s which have no current inputs 0 20 but voltage inputs 0 10V 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 5 1 3 Connection diagram with SONO VIEW y 5 SONO SILO SONO VARIO 24V DC Power Supph 0V DC or GND DEC E E Connection to further SONO probes Connection to further SONO probes 1 Analog Positiv 1 Analog Positiv 1 Analog Positiv 0 4 20mA PLC SONO VIEW Analogue input or rero eorr Distribution Cabinet distribution cabinet IMKO 30 40 MEROMCDUTEDHMIE P 5 2 Connection o
23. en COM1 COM9 and it should be ensured that there is no double occupancy of the interfaces If it comes to conflicts among the serial port or the USB SM has been found in a higher COM port the COM port number can be adjusted manually By double clicking on USB Serial Port you can go into the properties menu where you see connection settings with Advanced button the COM port number can be switched to a free number v 4 4 von USB Serial Port rwetlerie Einstetiungen M Tie Dersi Agren ingen UT Bi Sekunde 9600 mem Reduseren Se de Werte 8 Sie de Werte fur Pots Keine Spots t Fhasteueuy Ken 4 PlugPlay f r Schnittstelle E ramte Whedeherdellen nts belegt Drucker Abbrechen der wenn das Gorge 4 Event bei unorhergecehenis Entferung des Gries Boer Shiren cer Vertindung RIS aktiv setzen Abachalben dur Modenanteumrang bam Hochtabren des Gerate After changing the port settings SONO CONFIG must be restarted IMKO y 32 40 6 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 th
24. ent 0 0581 Deltax 500 70 The coefficient is the offset on the y axis at x 0 Coefficient Y2 m4 X2 25 0 0581 500 4 05 IMKO MEROMCOULTECHNIE Y 27 40 5 Connectivity to SONO Probes 19407 Jayem 10 ONOS je pue Jid 13 06 Ae dsig da1 uogeque 1 ue 10 andea SD ONOS Apoinb pue Asse 104 eqoid eq eui 01 ayeoiunuiuo2 pue 214NOO ONOS 29029 ONOS j2euuco eui eu uj JO 2 2 2 2 5 a r PES 2 syeudesdde ue gt S gt suyuo saqoid ONOS 5 1 at T gt f SMO 3NIHL M3IA ONOS 28 40 5 1 1 Connection Plug and Plug Pinning SONO GS1 is supplied with 10 pole MIL flange plug Assignment of the 10 pole MIL Plug and sensor cable connections Plug PIN Sensor Connections Lead Colour Lead Colour A 7V 24V Power Supply red red B OV Power Supply Blue Blue D 1 Analogue Positive Moisture Green Green E 1 Analogue Return Line Moisture y
25. equency 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 1 picosecond 1x1 072 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 via two analogue outputs 0 4 20 mA or recalled via serial interface 1 1 2 TRIME compared to other Measuring Methods In contrary 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 gt 2GHz At these frequenc
26. er 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 The 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 296 below the average moisture value with e g 8 than the average moisture value will be frozen at this value during the Lower Limit 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 filte
27. f smaller material quantities SONO GS1 plan view 265 5 2 2 280 side view cut out in the container wall 250 x 60mm with a radius of 7 5mm IMKO y4 7 40 2 3 Installation of SONO GS1 inside a Screw Conveyor The installation of SONO GS1 inside a screw conveyor ensures optimum conditions concerning material flow and material density because the measured material is not loose but is condensed by the screw Cut SONO GS1 of the spiral The SONO GS1 can be installed along the screw conveyor It is recommended to attain a mounting angle with a limit value of 309 to ensure that enough material lies above the probe s surface Optionally the spiral conveyor can be cutted so that a plug formation ensures that enough materials lies above the probes s surface It is also possible to install the probe at the end of the screw conveyor where it is also ensured that enough material in a backlog with a relative constant density lies above the probe s surface It is recommended to use measurement mode CF if the spiral is cutted out of if the probe is installed at the end of the screw conveyor Furthermore it is possible to install the SONO GS 1 in the middle of the screw conveyor without a cut out of the spiral Here it is necessary to set appropriate filter algorithms because the metal of the spiral has an influence of the measurement The appropriate parameters have to be found dependent on sc
28. f the Probe to the SM USB Module from 30 Quick Guide for the Commissioning Software 32 6 1 1 Scan of connected SONO probes on the serial 32 6 1 2 Configuration of Measure Mode and serial 33 6 1 3 Analogue outputs of the SONO 33 6 1 4 Selection of the individual Calibration Curves sse 34 6 1 5 Test run in the respective Measurement Mode sse 35 6 1 6 Measure run in Datalogger Operation 2 35 6 1 7 Basic Balancing in Air and 36 Technical Data GS CR 37 IMKO y 4 40 1 Instrument Description SONO GS1 1 1 1 The patented TRIME TDR Measuring Method The TDR 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 GS1 consists of a high grade metal casing with a wear resistant sensor head with plastic and metal window An integrated TRIME TDR measuring transducer is installed into the casing A high fr
29. f the Probe to the SM USB Module from IMKO The SM USB provides the ability to connect a SONO probe either to the standard RS485 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 5485 Connector Pin B 0V Power Supply Pin A 12VDC Power Supply Pin G RS485B Lead Colour brown Pin RS485A Lead Colour white 12VDC IMP Bus Connector leon With the option to accomplish download of the firmware 7 for the SONO probe y y 4 Pin B 0V Power Supply Pin 12VDC Power Supply 2 Pin C rt Lead Colour grey pink Pin J 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 SM
30. h 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 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 0 moisture content of the material But it would be also possible to use a higher point e g 190 7 where tpAve of 190ps corresponds to a moisture content of 7 The gravimetric moisture content of the material e g 7 has to be determined with laboratory IMKO y4 25 40 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 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 Ste
31. h 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 m0 to m5 not 35 40 6 1 5 Test run the respective Measurement Mode In the menu Test and the window Test in Mode or CF the measured moisture values MoistAve Average 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 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 in Mode Cyctic Ayntage Date Nosti Moist Most Meets TOR 16 04 08 11 03 2014 7 56 26 50 50 00 91 07 750 750 7 57 7 5 21 2 16 04 07 7 6 26 50 0 00 51 07 5 6 7 57 7 50 LO 91 0 16 04 05 03 2 7 4 26 50 50 00 91 00 7 8 10 7 50 7 7 57 4 91 0 16 04 05 11 05201 7 26 20 50 00 90 93 3 9 no 90 91 0 26 20 50 00 21 00 3 750 7 4 7 0 91 0 26 20 50 00 91 00 5 74 7
32. ic Float Average for continual average value with filtering and an accuracy of up to 0 1 for very slowly measuring processes e g in fluidized bed dryers conveyor belts etc Measurement Mode CK Cyclic Kalman Filter Standard setting for SONO MIX for use in fresh concrete mixer with continual average value with special dynamic Kalman filtering and an accuracy of up to 0 1 Measurement Mode CC Cyclic Cumulated with automatic summation of a moisture quantity during one batch process IMKO y 38 40 SIGNAL OUTPUT 2 x Analogue Outputs 0 4 20mA Analogue Output 1 Moisture in 95 0 20 variably adjustable Analogue 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 5008 resistor can be installed CALIBRATION The sensor is provided with calibrations for different materials A maximum of 15 different calibrations can be stored For special materials variable calibrations with polynomials up to the 5 order are possible A zero point correction can be performed easily with the SONO CONFIG software COMMUNICATION A serial RS
33. ies 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 with SONO GS1 51 is suited for installation into containers hoppers and silos The SONO GS is suited for measuring of heterogeneous bulk goods like wood chips granulates pasta and other materials with higher grain sizes The SONO GS 1 is not suitable for very abrasive materials like sand and gravel IMKO y 5 40 2 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 2 1 Assembly Instructions The following instructions should be followed when installing the probe The installation locations may not be situated beneath the inlets for additives e Incase of an uneven base the probe must be installed at the highest point of the base No water
34. in 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 the measured raw value of the radar time t is displayed e g 1532 05 picoseconds 2 Reference set point B 1000 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 gt 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 a 2 1000 0 100 0 1 0 Coefficients Calculated lt File lt Probe b0 1544 41 1 04735 Do Measurement Calculate Coeffs C
35. it 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 5 to 196 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 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 probes surface Otherwise the moisture zero point of the probe will be shifted up and the probe would not be
36. l the Material Delay time of e g 5 seconds has expired and a new batch process starts adjustable No Material Delay e g 5 seconds Time Start of second batch process After the period of No Material Delay e g 5 seconds the SONO probe recognizes that the threshold of 196 has been exceeded The previously stored measurement value is cleared and the probe starts again automatically with the continuous accumulation of measurement values yellow curve 16 40 3 3 4 Overview of single modes for different applications MKO The following table gives an overview about possible parameter settings in different modes Application Above a Insidea Generally greater in a screw At the end Installation conveyor fluid bed simple non conveyor ofascrew and specific belt dryer applicati homo with conveyor Parameters ons geneity filtering without in options filtering materials due to options metal spiral Operating CH CK CA CF CK CF Mode Average 2 5 10 30 10 10 Time for very long lasting process Filter Upper inactiv inactiv e g 20 e g 20 inactiv e g 20 Limit Offset 100 100 100 Filter Lower inactiv inactiv e g 10 e g 5 inactiv e g 5 Limit Offset 100 100 100 Upper Limit inactiv inactiv e g 10 e g 10 inactiv e g 10 Keep Time 10 10 10 Lower Limit inactiv inactiv e g 10 e g 10 inactiv e g 10 Keep Time 10 10 10 Moisture 0 1
37. may accumulate at the probe head as this could falsify the measurement e Areas with strong turbulences are not ideal for the installation There should be a continuous material flow above the probe head e The stirring movement of blades should be conducted without gap above the probe head e The probe should not be installed in the direct vicinity of electrical disturbing sources such as motors e Incase of curved installation surfaces in containers the centre of the probe head should be flush with the radius of the container wall without disturbing the radial material flow in the container The probe may not project and come in contact with blades or wipers Attention Risk 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 IMKO 6 40 MECROMCDUTECHNIE Y 2 2 Assembly Dimensions SONO GS1 can either be installed at the base or the side wall of containers One fact to consider is that the installation into the container base also enables the measurement o
38. network needs shielded and twisted pair cables especially for long distances Depending on the topology of the network it is necessary to place 100Ohm termination resistors at sensitive locations In practice this means considerable specialist effort and insurmountable problems The robust IMP Bus ensures security SONO probes have in parallel to the standard RS485 interface the robust IMP Bus which is galvanically isolated which means increased safety The serial data line is isolated from the probe s power supply and the complete sensor network is therefore independent from single ground potentials and different grid phases Furthermore the IMP Bus transmit its data packets not as voltage signals but rather as current signals which also works at already existing longer cables A special shielded cable is not necessary and also stub lines are no problem 3 1 3 Error Reports and Error Messages SONO probes are very fault tolerant This enables failure free operation Error messages can be recalled via the serial interface IMKO y 10 40 3 2 Configuration of the Measure Mode The configuration of SONO GS1 is preset in the factory before delivery A 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 via the serial interface to the PC with SM USB Module or the display mo
39. ns 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 of the SONO probe can be used for displaying the moisture value to a simple 7 segment un
40. oeffs gt Probe Close 37 40 T Technical Data SONO GS1 SENSOR DESIGN Probe casing Aluminium SONO GS1 The surface consists of highly abrasion resistant PEEK plastic MOUNTING Sensor Dimensions SONO GS1 280x70x40mm MEASUREMENT RANGE MOISTURE The sensor measures from 0 up to the point of material saturation MEASUREMENT RANGE CONDUCTIVITY The sensor as a material specific characteristic value delivers the radar based conductance RbC Radar based Conductance in a range of 0 5dS m MEASUREMENT RANGE TEMPERATURE Measurement Range 0 C 70 C The temperature is measured 3mm beneath the wear resistant sensor head inside the sensor casing and is issued at the analogue output 2 The material temperature can be measured with an external calibration and compensation of the sensor intrinsic heating On request version with higher temperature range MEASUREMENT DATA PREPROCESSING Measurement Mode CS Cyclic Successive For very short measuring processes e g 5 20 seconds without floating average with internal up to 100 measurements per second and a cycle time of 250 milliseconds at the analogue output Measurement mode CS can also be used for getting raw data from the SONO probe without averaging and filtering Measurement Mode CA Cyclic Average Filter For relative short measuring processes with continual average value filtering and an accuracy of up to 0 1 Measurement Mode CF Cycl
41. p 3 With the two calibration points P1 and P2 the calibration coefficients and m1 can be determined for the specific material see next page 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 name of the calibration curve can also be entered by hand 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 9 Attention Use dot as separator 0 0581 not comma 4 3 1 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 the software tool TRIME WinCal 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 to m5 which can be entered into the probe with help of SONO CONFIG The following diagram shows a sample calculation for a linear calibration curve with the coefficients and m1 for a specific material t Ave Radartime in Picoseconds The coefficient is calculated from the slope of the curve Cal14 Delta y 25 0 Coeffici
42. r 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 13 40 Sufficient material for an accurately moisture measurement value of 0 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 fits a high pass filtering for bridging material gaps Average Mode under Mode C Average Parameters Average Time s LEE Fiter Upper Limit Offset 20 5 5 Fiter Lower Limit Offset 2 Upper Limit Keep Time Lower Limit Keep Time The Filter Upper Limit is here deactivated with a value of 20 the Filter Lower Limit is set to 2 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 and resets if a single measurement value lies within the Limit values IMKO y 14 40 3 3 3 Mode CC automatic summation of a moisture quantity during one batch process Simple PLCs are often unable to record moisture measurement values during one batch process with averaging and data storage Furthermore there are applicatio
43. ration coefficients for different materials These calibration coefficients can be entered and stored in the SONO probe by hand Cal14 and Cal15 with the help of SONO CONFIG The following charts Cal 1 15 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 3 Hum cu pork N N ISI NN SAS SN BN cm DIS a Hi i e p HANA Hu NN fes 1 B 113 10 20 40 4 1 SONO GS1 for Measuring Moisture in Grains 4 1 1 Adjustments for initial operation The term adjustment refers in this case to the correct setting of the calibration curve and zero offset depending on grain type and installation place where an absolute moisture value with an accuracy of 0 3 is important The SONO GS 1 can only be adjusted when installed in the plant as the location and the bulk density of the grain have a significant influence on moisture measurement Adju
44. rew velocity It is recommended to use measurement mode if the probe is installed in the middle of the screw conveyor without a cut out of the spiral Please take a look the chapter IMKO y 8 40 3 Mode of Operation 3 1 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 200 milliseconds In the Measurement Mode CA and CF Average not the momentarily measured individual values are directly issued but an 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 head The delivery scope of SONO GS1 includes suited parameters for the averaging period and a universally applicable filter function deployable for currently usual applications The
45. stallation of SONO GS 1 inside a Screw Conveyor 20 1 0 7 3 Mode ot Operation rece nece 8 3 1 1 Measurement value collection with pre check average value filtering 8 3 1 2 Determination of the mineral Concentration 8 3 1 3 Temperature 8 3 1 4 Analogue Outputs aite a calentes crine eoa DRE de eta Ee etn E DE EIE 8 3 1 1 serial RS485 and IMP Bus interface sse 9 3 1 2 IMP Bus as a user friendly network system 9 3 1 3 Error Reports and Error 9 3 2 Configuration of the Measure 10 3 3 Operation Mode CA and CF at non continuous Material Flow 10 3 3 1 Average Time in the measurement mode and 12 3 3 2 Filtering at material gaps in mode 12 3 3 8 Mode CC automatic summation of a moisture quantity during one batch process 14 3 3 4 Overview of single modes for different applications 2 16 4 Curves
46. stment must be carried out separately for every dried product Moisture measurement is dependent on the following parameters Location e g metallic objects within the field of measurement Bulk density of the grain Type of grain product As soon as one of these parameters changes another calibration curve or an adjustment must be chosen If all possible grain types are adjusted it is only necessary to select the right calibration curve when changing the grain type in the plant 4 1 2 Selection of the calibration curve to Cal15 Up to 15 different calibration curves CAL1 Cal15 for grains are stored inside the SONO GS1 They can be activated in two ways A With the stand alone module SONO VIEW the calibration curve can be selected and activated B The calibration curve 15 can be activated with the module SM USB which is connected via a PC 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 Cal1 15 which is activated after switching on the probes power supply will be adjusted with the button Set Default Calib 4 1 3 Calibration curves with or without temperature compensation Installation at the discharge hopper For displaying correct moisture values it is to taken into account that a suitable calibration curve is to
47. t is recommended to leave this parameter to the default setting 3 3 1 Average Time in the measurement mode CA and CF SONO GS1 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 GS1 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 be taken into consideration if the SONO GS1 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 3 3 2 Filtering at material gaps in mode CA 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 attention should be directed at those time periods in which the measurement area of the probe is only partially filled with material for a long
48. time for the average value accumulation as well as various filter functions can be adjusted for special applications 3 1 2 Determination of the mineral Concentration With the radar based 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 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 GS 1 is 0 5dS m 3 1 3 Temperature Measurement A temperature sensor is installed inside the SONO GS1 which establishes the casing temperature 3mm beneath the sensor surface 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 measurement of the material temperature is therefore only possible to a certain degree The material temperature can be determined after an external calibration and compensation of the sensor self heating 3 1 4 Analogue Outputs The measurement values are issued as a current signal via the
49. ue continuously over a volume of 1 2 litres In moving grain the measurement volume acquired in the averaging time increases many times over It therefore requires a lot of time and effort to check this very representative value with a reference instrument that shows a sample quantity in the millilitre range There are also factors that can affect measurement such as temperature and conductivity that be ignored when using SONO GS1 due to the TDR radar method of measurement 23 40 IMKO Thus the most suitable method for determining the exact moisture of the grain is to use a drying oven Here too the sample volume is of decisive importance and should be at 0 5 litres When extracting the sample and taking reference measurements the following must be observed samples for the reference measurements should be extracted from as close as possible to the probe The distribution of moisture in the grain dryer can vary greatly When using a calibrated instrument with small sample volumes several samples must be extracted and their arithmetical average calculated Please note that calibrated instruments can also produce incorrect measurements that can lie between 2 in the lower and even 5 in the upper moisture range After the dryer or the silo has been filled the SONO GS1 moisture value must show valid reading 4 2 2 Recording measurement data in trial operation The selection of the calibration curve can only be a
50. ues can be set with this parameter Lower Limit Keep Time Standard Setting 30 Setting Range 1 100 With the setting of 100 this parameter must be disabled for Mode CK The maximum duration in seconds of the filter function for Lower Limit failures too low measurement values for longer lasting material gaps ie the time in which no material is located on the probe can be bridged Kalman Filter Parameter in Measurement Mode CK Q Parameter Standard Setting 1x10 Setting Range 0 01 1 10 This Kalman filter parameter Q is used to characterize the systemic measurement error It is recommended to leave this parameter to the default setting R Parameter Standard Setting 0 033 Setting Range 0 01 0 1 This Kalman filter parameter R is used for smoothing the measurement error The lower this parameter the faster is the response to smaller changes in the moisture readings The 12 40 IMKO 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 Kalman filter parameter K is used for a pre Standard Setting 0 01 dynamic behaviour of the Kalman Filter for Setting Range 0 01 0 2 higher changes in the moisture reading i e the reaction rate of the measurement signal can be affected hereby The K parameter is related to the Average Time I
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