User Manual SONO
Contents
1. 0l 0 09 UI 9Jn SIO N MICROMODULTECHNIK 7 GMBH 16 44 1 5 1 SONO VARIO 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 as different grain sizes unlike other measurement techniques such as microwave technology do not cause any distortion of the measurement result The calibration curve Universal Sand Mix is suitable for measuring the moisture in bulk sand gravel and gravel sand granulates The deviations to the universal calibration curve Cal1 are approximately 0 5 depending on the moisture range for the below listed gravel sand types NO Frobes Moisture in ETE EE EHE OTT OTT EEE Fine Sand Sand Gravel 2 4mm Gravel 4 6mm Gravel 6 12mm Gravel Sand Granulates Universal Calibration Cal1 gt HAAA EE Was 7 N UIN D TEETH P 4 m 100 150 200 250 Radartime in Picoseconds Gravel 4 6mm Gravel 6 12mm Gravel Sa2. pus ee EH in Picoseconds The coefficient m4 is calculated from the slope of the curve Cal14 Delta y 25 0 Coefficient 0 0581 Delta x 500 70 The coefficient mg is the offset on the y axis at x 0 Coefficient Y2 m4 X2 25 0 0581 500 4 05 20 44 IMKO MICROMODULTECHNIK 1 7 Connectivity to SONO Probes ppinb pue Ajisea apew ue eqoJd aui 0 5 D 4NOD ONOS 1 3 0 y YPM y U ue ayeW JO e1njde 104 aqoid y pue 9240149 ONOS 2 ue gSN WS 24 3AOW ONOS OIN VA ONOS XIW ONOS Old VA ONOS epouu 4 eyeudojdde ue M lt Pd e eui uo seqojd ONOS e1enb uuo 0 9 qissod 1 1 M3IA ONOS y O1llS ONOS MaAIA ONOS IMKOYA 21 4 4 MICROMODULTECHNIK T GMBH 1 7 1 Connection Plug and Plug Pinning SONO VARIO is supplied with a 10 pole MIL flange plug Assignment of the 10 pole MIL Plug and sensor cable connections Sensor Connections Lead Colour 7 24 Power Supply OV Power Supply be 1 Analogue Positive Moisture 1 Analogue Return L
3. for general fine Bulk Goods like Sand SONO VARIOxtreme for very high abrasive Goods like Gravel and Grit for low Density Materials like Grain Woodchips IMKO Micromodultechnik GmbH Telefon 49 0 7243 5921 0 Im Stock 2 Fax 49 0 7243 90856 D 76275 Ettlingen e mail www imko de I publik TECH_MAN TRIME SONO ENGLISH SONO VARIO SONO VARIO Xtrem LD MAN Vers2_1 english doc MICROMODULTECHNIK 7 GMBH 2 44 User Manual for SONO VARIO As of 26 June 2013 Thank you for buying an IMKO moisture probe Please carefully read these instructions in order to achieve best possible results with your SONO VARIO 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 4 1 1 1 The patented TRIME TDR Measuring Method 4 1 1 2 TRIME compared to other Measuring Methode e 4 1 1 3 Areas of Application with SONO VARIOStandard SONO VARIOXtrem and SONO VARIO p4 12 5 1 2 1 gt Measurement value collection with pre check average value and filtering 5 1 2 2 Determination of the min
4. Moisture in 96 Lightly Sand Expanded Clay Universal Calibration for Sand and Gravel 100 150 200 250 tpAve Radartime in Picoseconds MICROMODULTECHNIK T GMBH 1 8 44 1 6 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 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 CF see Q
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6. start with a slow blinking for the next 10 seconds preparation time for the first calibration point in air Therefore the dry probe head must be free in air When the LED is on continual for 5 seconds the first calibration point is completed in air 4 Now the blue LED starts with a quicker blinking during 10 seconds preparation time for the second point in water During this 10 seconds the probe head must be plunged in water When the LED is on continual for 5 seconds the calibration is completed in water After that the LED is off If the calibration should be failed the blue LED will be blinking continual Unplug the MIL connector and the calibration connector Plug in the blind cap of the calibration connector Plug in the MIL connector again The blue LED should be active continual now SONO VARIO is ready to use With strong pressing of a hand to the probe head the analogue moisture output 4 20mA should be respond If necessary the basic balancing procedure could be repeated several times Probe head must LED is LED is out LED is on be completely dry blinking Unplug the continual Plugin the for 108 LED is blinking calibration SONO MIX is Preparation Air quicker 10s Water connector ready to use ee Udo NN time for calibration Plunge the calibration Unplug MIL Screw blind cap calibration completed probe head completed connector and of calibration power supply air successfully into water successfully plug it a
7. 2 3 Temperature Measurement A temperature sensor 15 installed into the SONO VARIO 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 1 2 4 Temperature compensation when working at high temperatures Despite SONO probes show a generally low temperature drift it could be necessary to compensate a temperature drift in special applications SONO probes offer two possibilities for temperature compensation A Temperature compensation of the internal SONO electronic With this method of temperature compensation a possible temperature drift of the SONO electronic can be compensated Because the SONO electronic shows a generally low temperature drift SONO probes are presetted at delivery for standard ambient conditions with the parameter TempComp 0 2 Dependent on SONO probe type this parameter TempComp can be adjusted for higher temperature ranges to 100 C to values up to TempComp 0 75 But it is to consider that it is necessary to make a Basic Balancing of the SONO probe in air and water if the parameter TempComp is changed to another value a
8. Probe Head of the D 38 3 7 1 Basic Balancing of a new Probe Head 39 A Technical Data conet acct eal docu 40 IMKO MICROMODULTECHNI 4 44 1 Instrument Description SONO VARIO 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 VARIO consists of a high grade steel casing with a wear resistant sensor head with ceramic window 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 1 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 via two analogue outputs 0 4 20 mA or recalled via a serial RS485 interface 1 1 2 TRIME compared to other Measuring Methods In contrary to conventional capacitive or
9. Probes sessirnir niron 20 1 7 1 Connection Plug and Plug Pmmmg 21 1 7 2 Analogue Output 0 10V with a Shunt Hesisior 22 1 8 Connection of the 85485 to SM USB Module from 23 IMKO 3 44 SEET 2 Quick Guide for the Software 1 25 211 Scan of connected SONO probes the RS485 25 2 1 2 Configuration of Measure Mode 26 2 1 3 Analogue outputs of the SONO nennen 26 2 1 4 Selection of the individual Calibration Curves 0000 27 2 1 5 Test run in the respective Measurement Mode 29 2 1 6 Basic Balancing in Air and Water 30 3 Installation of the 31 Further Assembly 32 2 ug el Bee Te 33 3 39 Mounting in curved 35 3 4 Funnel shape for higher material depth 35 3 5 Gas and waterproofed 36 3 6 Installation in a conveyor pipeline YE Ca dra E UU S RU ctv V3 GU TRA X EE ona rei vai 37 3 7 Exchange of the
10. SONO VARIO SONO VARIO Xtrem LD MAN Vers2_1 english doc
11. TEMPERATURE Measurement Range 0 C 100 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 MEASUREMENT DATA PREPROCESSING 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 IMKO 41 A4 MICROMODULTECHNIK 7 GMBH SIGNAL OUTPUT 2 x Analogue Outputs 0 4 20mA Analogue Output 1 Moisture in e g 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
12. a 500R 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 polynomials up to the 5 order are possible A zero point correction can be performed easily with the SONO CONFIG software COMMUNICATION A 5485 interface enables network operation of the probe whereby a data bus protocol for the connection of several SONO probes to the RS485 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 24 DC 1 5 W AMBIENT CONDITIONS 0 70 C A higher temperature range is available upon request MEASUREMENT FIELD EXPANSION SONO V ARlOStandard Xtrem Approximately 30 50 mm depending on material and moisture SONO VARIOLD Approximately 70 100 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 MICROMODULTECHNIK GMBH 42 44 MICROMODULTECHNIK GMBH 43 44 Precise Moisture Measurement hydrology forestry agriculture environmental and earth science civil engineering as well as individual applications lApublikiTECH_MAN TRIME SONO ENGLISH
13. be configured see Chapter Analogue outputs IMKO 27 44 MICROMODULTECHNI Analog Output E E Output Current Output Channels Conductryvity mS cm Temperature Range Maximum 100 Minimum 0 Moisture Range bl asiman 20 Minin e 0 50 0 20 2 1 4 Selection of the individual Calibration Curves In the menu Calibration and the window Material Property Calibration the calibration curves to 5 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 MICROMODULTECHNIK T GMBH 28 44 Material Property Calibration Calibration Item Set Active Calib Default Calibration Item Please select one calibration from Call to Call operate 0 00000 Calibration 00000 00000 00000 1 06035 Universal 06035 06000 06000 2 05040 Lime 5 and Linear 05040 06000 06000 06041 Cement Powder 06041 06000 06000 Set Default 4 05042 Wood Pellets 05042 06000 06000 D 06043 Wheat 05043 06000 06000 sti 06044 Flow 06044 06000 060
14. be read from the probe via the RS485 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 ES Ici xl Serial Exil Bus Help Fa 2 1 1 Scan of connected SONO probes on the 85485 interface In the menu Bus and the window Scan Probes the RS485 bus can be scanned for attached SONO probes takes max 30 seconds SONO CONFIG reports founded SONO probes with its serial number in the window Probe List IMKOYA MICROMODULTECHNIK 7 GMBH 26 44 Probe List EI Exit Config Calibration Test 2 1 2 Configuration of Measure Mode In Probe List with Config and Measure Mode amp Parameters the SONO probe can be adjusted to the desired mode CA CF or CS see Chapter Configuration Measure Mode Measure Mode amp Parameters Default Cycle Mode Cyclic Measure amp Parameters Set Default Actual Cycle Luch m Average Mode under Floating Average Parameters Average Time s Filter Limit Limit Keep Time Filter Lower Limit 0 9 Lower Limit Keep Time 5 2 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
15. 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 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 Basic Balancing Calculated Fi lt in Probe 1544 41 1 04735 Measurement Calculate Coetts Coetts gt Probe Close IMKO 31 44 MICROMODULTECHNIK 7 GMBH 3 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 For measuring sand gravel and grit the SONO VARIO should ideally be installed under a silo valve which has many advantages see below gt Installation of
16. 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 with SONO VARIOStandard SONO VARIOxtrem and SONO VARIO p SONO VARIO is suited for moisture measurement of different m
17. the SONO VARIO for measuring sand gravel grit under silo valve or conveyor belt Dependent on material it is important to find the suitable angle of the mounting plate It should be not too steep but also not too flat It should be mentioned that with the innovative features of SONO probes and an extremely rugged design it is possible to installa SONO VARIO directly under valves of silos also for gravel with 32mm size The installation inside a silo could be also possible but it must be observed that during filling and emptying no material e g sand can be stick on the probes surface which could be result in measurement errors The following instructions should be followed when installing the probe The SONO VARIO should be installed ideally under a valve of the silo which has many advantages 1 The material flows constant and therefore the material density is constant which guarantees more precise measurement values 2 Due to higher material pressure the 5 surface is cleaned continously Material sticking and therefore measurement errors are be prevented 3 The SONO VARIO can detect clearly the start and the end of a batch process So the SONO VARIO can calculate an automatic summation of the moisture quantity during one batch process in mode CC Even short batches with few material can be precisely measured Further advantage is that the PLC programming can be made more simple without switching sig
18. with a standard RS485 interface to serially 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 the SONO VARIO can be directly connected to the USB port of a PC in order to adjust individual measuring parameters or conduct calibrations via the RS485 USB Module which can be provided by IMKO 1 2 7 Error Reports and Error Messages SONO VARIO is very fault tolerant This enables failure free operation Error messages can be recalled via the serial RS485 interface IMKO MICROMODULTECHNI 8 44 1 3 Configuration of the Measure Mode The configuration of SONO VARIO 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 5485 interface to the PC a RS485 USB Module which is available from IMKO The following settings of SONO VARIO 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 the 5485 interface e Measurement Mode C Cyclic SONO VARIO is supplied ex factory with suited parameters in Mode with 1 second average time for bulk goods Mo
19. 00 05045 Suger 05045 06000 06000 Universal s and hM ix B Brown coal granulate 4 06000 06000 9 05047 SON MES 05047 06000 05000 10 Expanded clay 06048 06000 06000 11 06049 Lightly sand 06049 06000 06000 Material Caeffz Temp Coetts 12 06050 Sewage sludge 06050 06000 06000 13 06054 Ceramic Suspension 06054 06000 06000 9 5 14 06058 ta Water 05058 06000 05000 0 05 15 06053 15 05053 05000 06000 0 0 0 m5 0 Sel 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 mO m5 Attention Use dot as separator for mO to m5 not comma IMKO 29 44 MICROMODULTECHNIK T GMBH 2 1 5 Test run in the respective Measurement Mode In the menu Test and the window Test in Mode CA 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 val
20. OV Power Supply Pin A 12VDC Power Supply Pin RS485B Lead Colour brown Pin F RS485A Lead Colour white 12VDC IMP Bus Connector With the option to accomplish a download of the firmware for the SONO probe Pin Power Supply Pin A 12VDC Power Supply 7 Pin C rt Lead Colour grey pink J Pin J com Lead Colour blue red 2 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 via 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 in SONO CONFIG with the button Bus and Configuration COM1 COM 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 MICROMODULTECHNIK T GMBH 24 44 Note 1 In the Device Manager passes it as follows Control Panel gt System gt Hardware gt Device Manager Ger te Manager Datei Aktion Ansicht E WS 50 BB Acronis Devices EI Anschl sse COM und LPT a ECP Druckeranschluss LPT 1 Under the entry Ports COM amp LPT now the E Intel R Active Management Technology SOL 50420 ite
21. alue lies within the Limit values 1 4 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 applications without a PLC where accumulated moisture values of one batch process should be displayed to the operating staff for a longer time Previously available microwave moisture probes on the market show three disadvantages 1 Such microwave probes need a switching signal from a PLC for starting the averaging of the probe This increases the cabling effort 2 Time delays can occur during the summation time with a trigger signal which leads to measurement errors 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 withou
22. aterials An installation is possible into containers hoppers above conveyor belts or in silos he SONO VARIOStandard is suited for measuring of normal abrasive materials like sand and gravel up to 4mm The probe head consists of stainless steel with a rectangular ceramic window The SONO VARIOxtrem is suited for measuring of very high abrasive materials like gravel 4 32 and grit The probe head consists of hardened steel with a rectangular special ceramic window he SONO VARIO Low Density is suited for moisture measurement of materials with low density like corn wood chips and other materials For wood chips and other very loose materials which show a bad flowability an installation inside a screw conveyor is recommended due to homogenuous densities inside a screw conveyor IMKO 5 44 MICROMODULTECHNI 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 Measuremen
23. bout 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 detect a moisture low value below the Moisture Threshold Following possible parameter settings in mode CC inside the SONO probe can be set Function The accumulation of moisture values starts above the Moisture Threshold and the analogue signal is output The accumulation pauses if the moisture level is below the threshold value Parameter in mode Moisture Threshold in moisture Standard Setting 1 Setting Range 1 20 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 lx 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 196 and the Material Delay time of e g 5 probe Stops automatically with the seconds has expir
24. c range e g to 0 10 0 20 0 30 For a 0 10V DC voltage output 500R resistor can be installed in order to reach 0 10V output Analogue Output 1 Moisture in 0 20 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 0 20 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 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 100 Moisture Range Temp Range Maximum e g 20 for sand Set in Maximum 100 C Minimum 0 Minimum 0 C IMKO 7 44 MICROMODULTECHNIK 7 GMBH 1 2 6 The serial RS485 interface SONO VARIO is equipped
25. cients 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 Attention Use dot as separator 0 0581 not comma 1 6 1 IMKOYA 1 9 44 MICROMODULTECHNIK T GMBH 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 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 50 grav Moisture in on Curve CM i zi e TS _ 4 _ j mE 1 1 KE 7 4 4 1 4 1 4
26. de 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 CA 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 0 196 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 Mode CH Cyclic Hold similar to mode CC but without summation e Calibration if completely different materials are deployed Each of these settings will be preserved after shut down of the probe and is therefore stored on a permanent basis 1 4 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 universally deployable filter function suited for most currently applications T
27. ds the wipers is smallest in this position In order to ensure that the probe head is completely covered with material the probe is best positioned near the base In order to prevent water from accumulating above the sensor head which could falsify the measurement an installation angle of approximately 30 above the base centre is recommended Fill the crack with sand or silicone sealing compound The centre of the sensor head should be flush with the radius of the vessel wall The sensor may not project The ceramic must be laterally aligned to the rotational axis Welded on Mounting Frame Clamping Collar Vessel Wall Probe SONO VARIO 3 4 Funnel shape for higher material depth If a too quick material flow leads to a too low material height above the probes surface than a guided funnel shape plate arrangement under a vibration chute could solve the problem The plates are ideally coated with PTFE for a better adherence behaviour IMKOYA MICROMODULTECHNIK 7 GMBH 36 44 3 5 Gas and waterproofed Installation For a pressure tight installation in a temperature range of 20 C to 80 C a flange installation is recommended The mounting flange can be welded to the container wall Sealing is possible with a 5 5mm thick O ring which is fixed with a locking ring Vessel Wall Mounting Flange Locking ring SONO VARIO Vessel Wall 108mm Probe Diameter Welded on Mounting Flan
28. e 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 44 MICROMODULTECHNIK P GMBH 3 2 Assembly Dimensions SONO VARIO 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 of smaller material quantities A mounting flange is available for SONO VARIO The flange can both be welded on to the base and the side wall of the container The probe can be adjusted to the correct position respectively correct installation height SONO V ARlOstandard 108mm Probe Diameter Vessel Wall Probe Height 45mm Mounting SONO VARIOstanaarc Flange SONO VARIOxtrem and VARIOLD 108mm Probe Diameter Probe Height 71mm Mounting Flange SONO VARIOxtrem IMKO MICROMODULTECHNIK 7 GMBH 34 44 Vessel Wall Mounting Flange SONO VARIO Dimensions of the Mounting Flange 86mm 132mm 86mm screw M6 35 44 MICROMODULTECHNI 3 3 Mounting in curved Surfaces In order to prevent the probe head from projecting and interfering with wipers the centre of the probe head should be flush with the radius of the wall The ceramic must be laterally aligned to the rotational axis as the gap towar
29. e 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 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 Call 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 calibration 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 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 21 092 00 C C LO N CN C
30. ed and a new se summation yellow curve batch process starts Short interruptions were bridged DM 0 Ee naloguea output 5 i Characteristic of moisture curve adjustable No Material Delay e g 5 seconds Adjustable Moisture 1 1 f 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 1 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 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 IMKO 1 3 44 MICROMODULTECHNI 1 4 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 1 5 Calibration Curves SONO VARIO is supplied with a universal calibration curve for sand Cal1 Universal Sand Mix A maximum of 15 different calibration curves CAL1 Cal15 ar
31. eral Concentraton 5 1 2 8 Temperature nennen nennen nnns nnn nnns nana rni 5 1 2 4 Temperature compensation when working at high temperatures 5 1 2 5 Analogue Outpute 6 1 2 6 The serial RS485 7 1 2 7 Error Reports and Error Messages nennen nennen nnne nnn nnne nnns 7 1 3 Configuration of the Measure Mode nennen nnne nennen nnn nnn nnns 8 1 4 Operation Mode CA and CF at non continuous Material Elow 8 1 4 1 gt Average Time in the measurement mode CA and 10 1 4 8 Filtering at material gaps in mode CA and 10 1 4 8 Mode CC automatic summation of a moisture quantity during one batch process 11 1 4 4 Mode CH Automatic Moisture Measurement in one Batch 13 1 5 Calibration Curves 13 1 5 1 SONO VARIO measuring Moisture of Sand and Aggregates 16 1 5 2 SONO VAHIO for measuring Moisture of Expanded Clay and Lightly 5 17 1 6 Creating a linear Calibration Curve for a specific 18 1 6 1 Nonlinear calibration 19 1 7 Connectivity to SONO
32. es 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 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 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 Sufficient material for an accurately moisture measurement value of e g 896 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 1 1 44 MICROMODULTECHNI Average Mode under Average Average Parameters Average Times Filter Upper Limit Offset 20 Filter Lower Limit Offset 200 Upper Limit Keep Time mo Lower Limit Keep Time Bo 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 v
33. fastening screws look for the right sequence of washer and gasket rings Lift off the probe head carefully so that the robust spring contacts in the interior are canted as little as possible Clean the surface inside the probe body for the O Ring Place the probe head so that the two spring contacts are inserted in the contact bushings Screw the 4 fastening screws back on It is to consider that the 4 screws find the 4 holes in the green epoxy plate inside the probe Wear resistant Sensor Head N Hardened Steel Ceramic Window with Compound Pad O Ring Contact Bushing Probe Body 4 x Fastening Screws for Wear resistant Sensor Head IMKO 39 44 MICROMODULTECHNI 3 7 1 Basic Balancing of a new Probe Head The probe heads are all identical and are manufactured to fit precisely In spite of this fact after an exchange it is necessary to make a basic calibration air and water that measures precise and accurate with the new probe head Therefore some work steps are required Basic calibration procedure 1 Provide a small container with water in which the probe head can be plunged in For the first calibration point in air the probe head must be completely dry If appropriate dry it with a towel Unplug the blind cap of the calibration connector and plug in the calibration connector Plug in the MIL connector with power supply to the probe The blue LED is on for 3 seconds and
34. gain connector fel P tl 1 3 seconds 10 seconds 5 seconds 10 seconds 5 seconds Calibration Connector MIL Connector Blue LED IMKO MICROMODULTECHNI 40 44 4 Technical Data SONO VARIO SENSOR DESIGN Casing High Grade Steel V2A 1 4301 SONO V ARlOStandard The probe head surface consists of stainless steel with abrasion resistant aluminium oxide ceramic SONO VARIOxXtrem The probe head surface consists of hardened steel with highly abrasion resistant special ceramic SONO VARIOLD The probe head surface consists of stainless steel with abrasion resistant special ceramic Available are high temperature versions of the SONO VARIO up to 150 C with external measurement transformer SONO ES upon request MOUNTING Sensor Dimensions SONO VARIOStandard 108 x 45mm Diameter x Length SONO VARIOXtrem and LD 108 x 71mm Diameter x Length The mounting flange can be screwed on to the rear side of any container hopper or silo MEASUREMENT RANGE MOISTURE The sensor measures from 0 up to the point of material saturation Measurement ranges up to 10096 moisture pure water are possible with a special calibration 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 12dS m The conductivity range is reduced in moisture measurement ranges gt 50 MEASUREMENT RANGE
35. ge Locking Slot for O Ring ring with 5 5mm diameter IMKOYA MICROMODULTECHNIK 7 GMBH 37 44 3 6 Installation in a conveyor pipeline For a pressure tight installation of the SONO VARIO in a conveyor pipeline it is important that the material flow inside the pipe will not be disturbed This can be realized with a concavely curved flange which is welded on the pipe in such a way that the radius of the pipe is only disturbed with the flat ceramic plate of the SONO VARIO with a width of 32mm and a length of 86mm Depending on the pipe s diameter e g 150mm the ceramic plate reaches about 2mm inside the pipe and disturbes the material flow only slightly A detailed flange construction is further depending on pipe thickness the proposed maximum pressure and other plant parameters The following sketch shows a possible flange construction Special icircular fl pecial semicircular tiange Ring Holder which press the probe to the flange Ee Groove for O ring SONO VARIO Rectangular window with 34mm width and 88mm length for the ceramic plate of the SONO probe LE 108 2mm MICROMODULTECHNIK T GMBH 38 44 3 7 Exchange of the Probe Head of the VARIOxtrem Lb At the SONO VARIOxtrem and VARIOLD not only the ceramic plate but the whole metal ceramic wear resistant probe head can be exchanged This is how easy it is to exchange the wear resistant probe head Loosen the 4
36. h hen Sie die Werte F r COM bereits belegt Paritat Keine Empfangen Bytes bereits belegt l COMS bereits belegt or Senden Bytes COM10 bereits belegt Stoppbits 11 bereits belegt COM12 bereits belegt o gt COM13 bereits belegt e Flusssteuerung Keine BM Einstellungen 14 bereits belegt Allgemeine Optionen Reduzieren Sie die Werte 15 bereits belegt ftr serielis Schnittstel verringern 16 bereits belegt PlugPlay F r serielle Schnittstelle COM1 bereits belegt Cruces Weltert iedernerstellen Wartezeit ms COMI18 bereits belegt erieller Drucker 19 Abbrechen der Kommunikation wenn das Ger t 20 bereits belegt ausgeschaltet wird Timeouts 21 Event bei unvorhergesehener Entfernung des COM22 Ger ts m COM23 Minimale Anzahle der 24 Beim SchlieBen der Verbindung RTS aktiv setzen 25 bereits belegt Abschalten der Modemansteuerung beim Minimale Anzahle der Schreitj 26 Hochfahren des Ger ts ms COM27 28 29 After changing the port settings SONO CONFIG must be restarted IMKO 25 44 MICROMODULTECHNIK T GMBH 2 Quick Guide for the 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
37. he data in the text file can be evaluated with Windows EXCEL MICROMODULTECHNIK 7 GMBH 30 44 2 1 6 Basic Balancing 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 ceramic window like SONO VARIO MIX SILO and MOVE air and water tap water is used For other SONO probes like SONO GS1 glass beads used for basic calibrations on request Attention Before performing a Basic Balancing it must be ensured that 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 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
38. he 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 9 44 MICROMODULTECHNIK 7 GMBH Parameters in the Measurement Function Mode CA CF and CK Average Time Standard Setting 10 Setting Range 1 20 Filter Upper Limit Offset Standard Setting 5 Setting Range 1 20 With the setting of 20 this parameter must be disabled for Mode CK Filter Lower Limit Standard Setting 2 Setting Range 1 20 With the setting of 20 this parameter must be disabled for Mode CK Upper Limit Keep Time Standard Setting 5 Setting Range 1 100 With the setting of 100 this parameter must be disabled for Mode CK Lower Limit Keep Time Standard Setting 30 Setting Range 1 100 With the setting of 100 this parameter must be disabled for Mode The time in seconds for the generation of the average value can be set with this parameter Too high measurement values generated d
39. his Kalman filter parameter K is used for a pre dynamic behaviour of the Kalman Filter for 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 It is recommended to leave this parameter to the default setting MICROMODULTECHNIK 7 GMBH 1 0 44 1 4 1 Average Time in measurement mode and SONO VARIO establishes every 200 milliseconds a new single measurement value which 1 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 VARIO 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 probe 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 1 4 2 Filtering at material gaps in mode CA and CF A SONO probe
40. ine Moisture RS485 B rt IMP Bus com IMP Bus 2 Analogue Positive pink 2 Analogue Return Line Screen transparent is grounded at the sensor The plant must be properly grounded IMKOYA MICROMODULTECHNIK T GMBH 22 44 1 7 2 Analogue Output 0 10V with a Shunt Resistor There are PLC s which have no current inputs 0 20mA 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 IMKOYA 23 44 MICROMODULTECHNIK P GMBH 1 8 Connection of the RS485 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 optionally to the IMP Bus from IMKO which enables the download of a new firmware to the SONO probe 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
41. 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 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 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 with Upper and Lower Limit Offsets and Keep Time For example the Lower Limit Offset could be adjusted with 2 with a Lower Limit Keep Time of 5 seconds If the SONO probe determin
42. m USB Serial Port COMx is found Kommunikationsanschluss Prolific LISB En Serial Bridge COM Prolific LISB En Serial Bridge COM Standardm figige Seriell Ober Bluetooth verbindung 14 Standardmafigige Seriell Gber Bluetooth verbindung COMIS Standardmafigige Seriell Gber Bluetooth verbindung TOMIE Standardma fgige Seriell Ober Bluetooth Verbindung COMI F Standardmafigige Seriell Gber Bluetooth verbindung 18 E USB Serial Port COM 4udio wideo und Gamecontroller 1328 Bildbearbeitungsger ate Bluetooth Funkgera te set must be between 1 9 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 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 Eigenschaften von USB Serial Port COM4 a Erweiterte Einstellungen f r COM4 Allgemein Anschlusseinstellungen Treiber Details COM Anschlussnummer COMI bereits belegt USB Packetagr Ben Abbrechen Bits pro Sekunde 9600 l Reduzieren Sie die Werte Ehe bereits belegt Baudraten zu beheben m I 1 COMS bereits belegt Standard Datenbits 8 Er
43. nals IMKO MICROMODULTECHNI 32 44 3 1 Further Assembly Instructions e With the universal holder deliverable by Imko the SONO VARIO can be placed above a conveyor belt Particularly with inhomogeneous or loose sand the material can be constantly condensed which leads to higher measurement results e The installation locations may not be situated beneath the inlets for additives e n case of an uneven base the probe must be installed at the highest point of the base No water may accumulate at the probe head as this could falsify the measurement 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 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 breakag
44. nd Granulates 1 7 44 MICROMODULTECHNIK 7 GMBH 1 5 2 SONO VARIO for measuring Moisture of Expanded Clay and Lightly Sand Concerning the material density expanded clay and lightly sand differ significantly in comparison to sand and gravel Therefore a separate calibration for each material is necessary It is to consider that expanded clay below a moisture level of 12 still can absorb more water ie here it must be calculated with more addition of water into a mixture At moisture levels above 12 the maximum core moisture of expanded clay the surface water of the expanded clay would act as a free addition of water and the addition of water into a mixture should be reduced For measuring these two materials the probe calibration Cal10 or Cal11 can be selected If you want to use a single SONO probe with the calibration Cal1 for both normal sand gravel as well as these two materials then there is the possibility with a simple mathematical conversion inside a PLC Requirement would be that the PLC knows when and what material is to be measured You may convert the following MoistureLightlySand MeasurementValueCal1 Factor of 4 MoistureExpandedClay MeasurementValueCal1 Factor of 4 8 3 2 Offset is to consider that this correction calculation for expanded clay can only be measured above 3 2 which in practice would be acceptable as it is unlikely that in plant operation the moisture in expanded clay is below 3 296
45. s TempComp 0 2 The parameter TempComp can be changed with the software tool SONO CONFIG in the menu Calibration and the window TemperatureCompensation IMKO MICROMODULTECHNI 6 44 B Temperature compensation for the measured material Water and special materials like oil fruits and others can show a dependency of the dielectric permittivity when using SONO probes at high temperature ranges The dielectric permittivity is the raw parameter for measuring water content with SONO probes If special materials show a very special temperature drift e g in lower temperatures a higher drift than in higher temperatures than it could be necessary to make a more elaborate temperature compensation Therefore it is necessary to measure in parallel the material temperature with the temperature sensor which is placed inside the SONO probe Normally this is related with high efforts in laboratory works SONO probes offer the possibility to set special temperature compensation parameters 10 to 15 for every calibration curve Cali of Cal15 see chapter Selection of the individual calibration curve Please contact IMKO should you need any assistance in this area 1 2 5 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 VARIO can be set to the two versions for 0 20mA or 4 20mA Furthermore it is also possible to variably adjust the moisture dynami
46. t Mode CS Cyclic Successive an average value is not accumulated and the cycle time here is 200 milliseconds In the Measurement Mode CA CF CC and CK 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 VARIO 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 dS m as characteristic value which is determined in dependency of the mineral concentration and is issued as an unscaled value The RoC measurement range of the SONO VARIO is 0 12dS m 1
47. t 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 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 5 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 15 the pause greater as the No Material Delay then the probe is ready to start a new batch process MICROMODULTECHNIK T GMBH 12 44 How can the mode 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 a
48. ue to metal wipers or blades are filtered out The offset value in is added to the dynamically calculated upper limit 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 The maximum duration in seconds of the filter function for Upper Limit failures too high measurement values can be set with this parameter 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 1 0 R Parameter Standard Setting 0 033 Setting Range 0 01 0 1 K Parameter Standard Setting 0 01 Setting Range 0 01 0 2 This Kalman filter parameter Q is used to characterize the systemic measurement error is recommended to leave this parameter to the default setting 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 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 T
49. ues 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 CF Cyclic Float Moit ve _ MatTemp Conduct TDRAve DelaCount W ss 11 42 52 25 03 2010 12 90 30 00 0 00 80 84 11 373 04 11 42 50 25 03 2010 11 42 48 25 03 2010 11 42 47 25 03 2010 11 42 45 25 03 2010 11 42 44 25 03 2010 11 42 42 25 03 2010 11 42 40 25 03 2010 11 42 39 25 03 2010 Measure 11 42 37 25 03 2010 X co ocn cn Roco Dp rz Following measurement values are displayed on the screen MoistAve Moisture Value Average MatTemp Temperature Conduct Radar based Conductivity RbC TDRAve TDR 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 XSSONO 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 T
50. uick 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 70 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 P1 e g 190 7 where a 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 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 25 has to be determined with laboratory measurement methods oven drying Step 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 coeffi
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