Process and Laboratory Moisture and Density Measuring Innovative Microwave Resonance Technology Process and Laboratory Moisture and Density Measuring In the Sugar industry

41 years of TEWS Elektronik Enterprise Measuring procedure Measuring instruments Applications Service Research and Development, Production and Sales 41 years of TEWS Elektronik TEWS ELEKTRONIK GMBH & CO. KG 41 years of industrial experience 22 years of experience in microwave resonance technology for moisture and density measurement 3500 systems employed for 600 customers Approximately 50% of the equipment are installed and maintained overseas 50 employees in research, development and production Sales and service throughout the world Made in Germany

Moisture Measuring Procedures Enterprise Measuring procedure Measuring instruments Applications Service Physics and Methods Moisture Measuring Procedures

Why measure the Water Content? Enterprise Measuring procedure Measuring instruments Applications Service Moisture Measuring for Quality Assurance and Process Control Why measure the Water Content? Water content as cost factor (valuable product, cheap water) Optimization of process steps (e.g. time and energy during drying) Mechanical processability (e.g. stability, proportioning) Product shelf life (e.g. moldiness, chemical reactions) Safety (e.g. risk of explosion, spontaneous combustion) Legal and contract conditions >> require reliable, accurate and fast moisture measuring

Hours Minutes Seconds Milliseconds Enterprise Measuring procedure Measuring instruments Applications Service Direct and Indirect Methods Industrial Moisture Measuring Procedures Hours Minutes Seconds Milliseconds Accuracy Karl Fischer titration Microwave resonance Near infrared (NIR) Drying kiln, LOD balance Capacity, conductivity

Microwave measuring equipment Enterprise Measuring procedure Measuring instruments Applications Service Construction and Components Microwave Resonance Measuring System Display Microwave measuring equipment Inter- face Micro-controller, software Microwave generator, Microwave detector LAN, bus, etc. PLC Microwave sensor

The Microwave Resonance Technique Enterprise Measuring procedure Measuring instruments Applications Service Electromagnetic Field Measurement Interactions between Water and Microwaves H+ Low-powered microwave field Selective interactions between field and polar water molecules Resonance is sensor-specific Water molecules in the product change the resonance frequence and amplitude Measurements of moisture and density or mass O2- H+ Amplitude The Microwave Resonance Technique Frequency

Forms of Microwave Resonators Enterprise Measuring procedure Measuring instruments Applications Service Adjusted to Product and Application Forms of Microwave Resonators Planar sensors Powder Granules Pellets Fibers Boards Tubular sensors Powder Granules Pellets Fibers (atline) Fork sensors Foils Strips Sheets Fleece Paper

Characteristics of the Microwave Resonance Method Enterprise Measuring procedure Measuring instruments Applications Service For High-quality Industrial Application Characteristics of the Microwave Resonance Method High accuracy High speed Surface and core moisture - Independent of density, color, surface structure - Direct measurement in product flow - Online capacity Microwave resonance method Simple service - Free of wear and tear, low-maintenance - No sample preparation, non-destructive

Measuring Instruments to meet your Demands Enterprise Measuring procedure Measuring instruments Applications Service TEWS Elektronik Blueline ® Measuring Instruments to meet your Demands

The Instrument Program Enterprise Measuring procedure Measuring instruments Applications Service TEWS Elektronik Blueline ® The Instrument Program Special solutions Measuring rate 1/sec 100/sec 10,000/sec MW 30X1 Process facilities MW 4420 Laboratory/ atline instruments MW 4260, MW 4270 MW 4300, MW 4310 MW 1150 Handheld instruments MW 1100, MW 1100S

Online Measurement of Material Moisture & Density Enterprise Measuring procedure Measuring instruments Applications Service Process Instruments MW 4260 and MW 4270 Online Measurement of Material Moisture & Density Sensors directly within the product stream Continuous measurement transfer to process control Special implementations and ATEX protection are possible

Quality Assurance in the Laboratory Enterprise Measuring procedure Measuring instruments Applications Service Moisture Measuring Instruments MW 4300 and MW 4310 Quality Assurance in the Laboratory For high-quality laboratory measurements of moisture / density Many configuration, calibration and data analysis options Sensors for sample volumes of 1 ml – 2000 ml are available

Atline routine Measurements Enterprise Measuring procedure Measuring instruments Applications Service Moisture Measuring Instrument MW 1150 Atline routine Measurements For frequent routine measurements accompanying production Configuration, calibration and data analysis related to applications Equipment for sample volumes of 1 ml – 2000 ml are available

Transportable, precise, applicable in a Variety of Ways Enterprise Measuring procedure Measuring instruments Applications Service Handheld Instruments MW 1100 and MW 1100S Transportable, precise, applicable in a Variety of Ways Measuring by pressing on bulk material or insertion in bales, etc. Storage of measurements and data exchange via USB Application under industrial conditions

Display, Analysis, Documentation Enterprise Measuring procedure Measuring instruments Applications Service Software TEWS Moisture View TMV © Display, Analysis, Documentation Simple operation, configuration and calibration of the measuring instruments Statistics and graphics functions for the measured data analysis Integrated software for all applications

Moisture Measuring at Production Facilities Enterprise Measuring procedure Measuring instruments Applications Service Typical Measuring Sites Moisture Measuring at Production Facilities Laboratory

block above conveyor belt Enterprise Measuring procedure Measuring instruments Applications Service As Diverse as the Demands Sensor Installation at Process Facilities Sliding block above conveyor belt Conveyor transfer point Vibro conveyor Fork sensor on production line

Measuring next to conveyor belt Exposition on Process Installations Enterprise Measuring procedure Measuring instruments Applications Service As Diverse as the Demands Sensor Installation at Process Facilities Drop shaft, silo, chute Bypass Measuring next to conveyor belt Mobile instruments Exposition on Process Installations

Sugar, Melasse, Fondant Industrial Applications Enterprise Measuring procedure Measuring instruments Applications Service Industrial Applications Sugar, Melasse, Fondant

Sugar and Biofuel Industrie Enterprise Measuring procedure Measuring instruments Applications Service Accurate and Fast Measuring Saves Time and Money Sugar and Biofuel Industrie Microwave measuring is rarely influenced by natural variation of sizes, color, mineral content Detection of surface and core moisture APPLICATION EXAMPLES Sugar Substitutes Refined Sugar Lactose Fondant 0,8 – 3,5 % 0,02 – 0,5% 0 – 0,6 % 11 – 16 %

Moisture calibration: Enterprise Measuring procedure Measuring instruments Applications Service Measuring and Calibration Example Chrystal Sugar Moisture range: approx. 0.02 %– 0.45 % Temperature: 15 °C – 50 °C Sensors: Tube sensor H-177-46   Measuring results:    Moisture calibration: The calibration adjusted on initial commissioning is stable, it was checked repeatedly and confirmed. Number of samples: 16 Mean deviation:+/- 0.01 %

Qualified Support Our Service Enterprise Measuring procedure Measuring instruments Applications Service Our Service Qualified Support

Enterprise Measuring procedure Measuring instruments Applications Service Our Service Qualified Support Project support from initial consultation to commissioning After sales service Support for customers throughout the world in many languages OVERVIEW OF SERVICE Application laboratory for test measurements Customer-specific solutions Qualified maintenance and instructions to users Application-specific calibration Support provided by engineers via telephone and modem Upgrading service

Representing TEWS Elektronik international Enterprise Measuring procedure Measuring instruments Applications Service Service and Sales Representing TEWS Elektronik international

TEWS Elektronik – your competent Partner Enterprise Measuring procedure Measuring instruments Applications Service Enterprise and Technology TEWS Elektronik – your competent Partner TEWS Elektronik The specialist for microwave resonance measuring 20 years of experience in material moisture and density measurement Research and development, production, sales and service Customer-specific solutions in many branches throughout the world Microwave resonance measuring High accuracy High measuring speed Easy to operate

Thank you very much for your Interest! Enterprise Measuring procedure Measuring instruments Applications Service TEWS Elektronik – Industrial Moisture and Density Measuring Technology Thank you very much for your Interest! TEWS Elektronik GmbH & Co. KG Sperberhorst 10 22459 Hamburg Germany Phone +49.40.555.911-0 Fax +49.40.552.575.9 info@tews-elektronik.com www.tews-elektronik.com

Exposition on Microwave Resonance Procedures Enterprise Measuring procedure Measuring instruments Applications Service Process and Laboratory Moisture and Density Measuring Exposition on Microwave Resonance Procedures Back

Dual-Parameter Measurement Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Dual-Parameter Measurement Sensor Resonator Product GEN Display CPU Keyboard DET Interfaces Processor Generator/Detector Product/Sensor Generator control Detector read-out Moisture and density calculation Peripheral connection (e.g. PC) Microwave generation in the gigahertz range Sensor input Microwaves changed by the product are received Transmission of the measuring signal to the CPU Build-up of a resonating microwave field Product changes the field in the sensor Measuring the signal by antenna at the detector Back

Dual-Parameter Measurement Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Dual-Parameter Measurement empty Sensor Transmission Each sensor shows a characteristic natural resonance in empty state. Frequency Back

Dual-Parameter Measurement Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Dual-Parameter Measurement Attenuation empty sensor Both the resonance parameters, namely shift displacement and attenuation, are typical for moisture and density of the test sample in the sensor. Transmission filled sensor Shift Frequency Back

Dual-Parameter Measurement Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Dual-Parameter Measurement Gradual charging of the sensor or product compaction at constant moisture – increases the resonance shift – increases the resonance attenuation proportionately Transmission Frequency Back

Dual-Parameter Measurement Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Dual-Parameter Measurement Rising product moisture at constant density – increases the resonance shift – increases the resonance attenuation disproportionately Transmission Frequency Back

Change in amplitude (y) Shift in the resonance frequence (x) Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Separation of Moisture and Density Diagram x-axis: Frequency shift y-axis: Change of amplitude Different lines Line 1: dry product Line 2: moist product Values on one regression line: different densities but same moisture Angle The "α “ angle only depends on moisture The angle determines the MW value The density only determines the position on the regression line 0.10 0.08 0.06 Change in amplitude (y) Sample 2 Sample 1 0.04 0.02 α1 α2 0.00 0.0 0.2 0.4 0.6 0.8 1.0 Shift in the resonance frequence (x) Back

Calibration Exposition on Microwave Resonance Procedures Diagram Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Calibration Diagram x-axis: Moisture reference (e.g. LOD loss on drying) y-axis: MW-value Regression Calculation of a calibration line Measuring in the application-specific moisture range Correlation and mean deviation are calculated Number of calibrations Several calibrations can be stored For up to 200 products (optional) 0.050 0.045 0.040 MW value 0.035 0.030 0.025 0.020 2.0 3.0 4.0 5.0 6.0 Moisture (%) Back

Temperature Compensation Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Temperature Compensation Increasing temperature Makes water molecules more mobile Increases microwave values Temperature compensation lines For cold samples (blue) For hot samples (red) Calculation Recommended for temperature variations > 10°C Compensation can be activated by user 0.13 0.11 Measure value 0.07 0.05 20°C 110 °C 0.03 0.0 1.0 2.0 3.0 4.0 5.0 Moisture (%) Back

Display and Storage of Measurements (1) Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Display and Storage of Measurements (1) Number Date Hour Moisture Density Temperature 1 01.09.2008 23:45 7,8 492 22° 2 23:50 8,1 489 23° 3 23:55 7,9 503 4 02.09.2008 0:00 8,0 510 5 0:05 512 24° Moisture: 8.0 Density: 510 Temperature: 23°C Back

Display and Storage of Measurements (2) Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Display and Storage of Measurements (2) 2008-09-02 00:05:00 8.5 530 8.4 500 8.3 Density 470 Moisture 8.2 Density 440 Moisture 8.1 410 8.0 380 7.9 350 Moisture: 8.1% Density: 450 mg/cm3 Back

Summary: Advantages and Benefits Enterprise Measuring procedure Measuring instruments Applications Service Exposition on Microwave Resonance Procedures Summary: Advantages and Benefits Advantages ACCURATE – due to high water selectivity FAST – the results are available within milliseconds INDEPENDENT – the moisture determination is independent of density, surface structure and color of the sample FREE OF MAINTENANCE – no consumables, no aging, no wear BENEFITS FOR THE USER Fast amortization Energy-saving Optimization of production process Increase in product quality Back

Exposition on Process Installations Enterprise Measuring procedure Measuring instruments Applications Service Process and Laboratory Moisture and Density Measuring Exposition on Process Installations Back

Planar Sensor at a Conveyor Belt (1) Enterprise Measuring procedures Measuring units Application Service Sensor Installation at Process Facilities Planar Sensor at a Conveyor Belt (1) Back

Planar Sensor in a Vibro Conveyor Enterprise Measuring procedure Measuring instruments Applications Service Sensor Installation at Process Facilities Planar Sensor in a Vibro Conveyor Back

Planar Sensor in Sliding Block above Belt Conveyor (1) Enterprise Measuring procedure Measuring instruments Applications Service Sensor Installation at Process Facilities Planar Sensor in Sliding Block above Belt Conveyor (1) Back

Planar Sensor in Silo Wall Enterprise Measuring procedure Measuring instruments Applications Service Sensor Installation at Process Facilities Planar Sensor in Silo Wall Back

Tubular Sensor in Bypass Enterprise Measuring procedure Measuring instruments Applications Service Sensor Installation at Process Facilities Tubular Sensor in Bypass Back