How Turbidity Measurement of COW Water can Lead to Lower Costs and Higher Yield

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1 Dairy Perspectives in Liquid Process Analytics News 7 INGOLD Leading Process Analytics How Turbidity Measurement of COW Water can Lead to Lower Costs and Higher Yield COW (Condensate of Whey) water need not be wasted. METTLER TOLEDO s InPro 8600 turbidity sensor can help you reduce production and maintenance costs, and improve yield. A household name Our customer is one of the world s largest companies in the food industry. Their portfolio spreads from human to animal food and they are well known for their health awareness. Reuse of COW water Water extracted from dairy products can be re-used in different ways if adequately filtered and monitored. Depending on the quality of the condensed water, it can be used either in Clean-in-Place applications, boiler feed or in situations where there is no contact with products. The lower the quality, the less suitable this water is for these applications and the more likely it is to go to waste. Monitoring COW water is therefore crucial, both for maximizing water usage and for reducing the possibility of bacteria growth in nonproduct pipes. The quality of the water is directly related to the amount of suspended solids it contains, therefore COW water can be easily monitored with in-line low turbidity analyzers. METTLER TOLEDO s solution Due to the need for high performance in low turbidity measurements and hygienic design, METTLER TOLEDO s new InPro 8600 in-line turbidity sensor, with its 25 angle detection, is the perfect way of monitoring the quality of COW water. The InPro 8600 measures turbidity by using a red LED in the sensor head as a light source and analyzing the spatial

2 Turbidity sensor InPro 8600 showing direction of sample flow distribution of scattered light created by the suspended particles in the liquid medium. For the particle size found in COW water a 25 angle of detection is most suitable. An additional measurement of direct light at 0 enables compensation for background color changes, light source instensity changes, and optical window fouling. If the system installed at the customer's plant detects a particle concentration below 5 FTU, COW water is allowed through to storage tanks. If concentration exceeds this level the water is automatically diverted to a waste purification facility. Lower costs Our customer is delighted with the performance of the METTLER TOLEDO system and has found that since monitoring the turbidity of COW water they have less need of fresh water. This has both lowered their production costs and brought environmental benefits. Additionally, bacteria growth in non-product pipes has been avoided; reducing process downtime and maintenance costs, and consequently increasing yield. For more information, go to: direct light 0 photodetectors Sensor head of an InPro scattered light LED light source Because of the sensor s Intelligent Sensor Management (ISM) technology, specifically the Plug and Measure feature, the system is ready to use as soon as the InPro 8600 is connected to the Trb 8300 D transmitter, at which point all calibration data is instantly uploaded to the Trb 8300 D. Moreover, comprehensive diagnostic functions make it easy for the user to establish sensor status. Other features of the InPro 8600 include its sapphire windows and absence of O-rings, which combined make this sensor almost maintenance free. InPro 8600 Benefits Low installation costs Extremely accurate Highly reliable performance Very low maintenance Trb 8300 D Benefits Simple installation Limited maintenance Versatile multiple selectable measuring units, four outputs Easy to use Publisher / Production Mettler-Toledo AG Process Analytics Im Hackacker 15 CH-8902 Urdorf Switzerland Illustrations Mettler-Toledo AG Subject to technical changes. Mettler-Toledo AG 12/08 Printed in Switzerland. Turbidity transmitter Trb 8300 D 2 METTLER TOLEDO Dairy News 7

3 M400 Transmitter Series for Digital or Analog Sensors Switching to Digital Technology Made Easy With M400 Transmitters METTLER TOLEDO has introduced digital sensors with Intelligent Sensor Management (ISM) functionality for the measurement of ph, redox potential and dissolved oxygen. The new M400 transmitter series offers the ideal solution for analog and digital sensors. Maximum flexibility The new M400 series of multi-parameter transmitters were designed with ISM in mind. The series supports full ISM functionality, including advanced diagnostics and our Plug and Measure feature. All M400 transmitters provide mixed mode connections for measurement of both conventional analog and modern digital sensors. This means that users who have already integrated digital measurement technology into their processes also have the opportunity to connect an analog sensor to an M400 transmitter, if required. Digital sensors are recognized by the transmitter, and the Plug and Measure functionality enables immediate system readiness. The M400 series feature an integrated universal power supply that can be operated with voltages of 100 to 240 V AC at 50 or 60 Hz, and 20 to 30 V DC, so complexity is minimized for warehousing and logistics. The M400 series covers all relevant measurement values such as ph, redox, conductivity, and amperometric and optical dissolved oxygen. In addition, it also offers an auxiliary temperature value from ph electrodes and DO sensors. Unique diagnostics One of our customers frequently asked questions in regard to ph measurement is, What is the life span of an electrode? Our standard answer has been, It depends on electrode type, process conditions and maintenance regime. The M400 series together with the ISM sensors provide a different answer. Intelligent sensor diagnostics measure the current process conditions (parameters such as ph, temperature, glass and reference electrode impedance) and calculates, together with statistical data (calibration history, zero point, slope, response time, CIP / SIP / autoclave counter) the remaining life span of the electrode. The diagnosed results are displayed via the following features: DLI Dynamic Lifetime Indicator: Constant, dynamic prognosis of the sensor life span based on the current process conditions TTM Time to Maintenance indicator: Constant, dynamic calculation of the maintenance intervals based on the DLI information ACT Adaptive Calibration Timer: Constant, dynamic calculation of the calibration intervals based on the DLI information Output adaptability Processing of the measurement signals can be done over four analog 0 / ma connections. The information from the DLI, TTM and ACT can be used to set relay contacts which indicate when a sensor should be exchanged, maintained or calibrated. A complete system M400 measurement systems are complemented by the isense Asset Suite for maintenance management and calibration of ISM sensors. For further details, go to: Transmitter M400, compatible with analog and digital sensors METTLER TOLEDO Dairy News 7 3

4 Latest Developments in Analytical Sensors Chemical Sensors Forum 2008 Where Science and Industry Meet In September, around 50 experts from 6 countries met in Zurich, Switzerland to exchange ideas and opinions on analytical sensors in different application segments. METTLER TOLEDO contributed with a presentation on latest trends in more user-friendly in-line measurement systems. Great location Zurich is always worth a visit! The attendees of the Chemical Sensors Forum held their congress on Zurich s famous mountain the Üetliberg. Perfect meeting conditions provided the framework for fruitful presentations and valuable exchange of know-how. Forum topics The two-day forum was organized by the Zurich University of Applied Sciences as an interdisciplinary event for experts on chemical sensors from academia and industry. The sessions and panel discussions addressed the following topics: Trends in industrial sensor research & development Visions and trends in academic sensor research User s needs: Does research in industry and universities fulfill user requirements? METTLER TOLEDO anticipates trends In 14 presentations, experts from the Pharmaceutical and Food & Beverage industries, as well as industrial and academic researchers, presented their latest instrument designs and measurement results. A common trend throughout all application segments was clearly identified: the latest developments in the field of sensor technology lead to a more frequent use of sensors in all segments in process analytics as well as in clinical and research laboratories. Another overall trend also became apparent: users of analytical equipment would prefer measurement systems with better usability and a lower maintenance requirement. METTLER TOLEDO s solutions are already meeting the above stipulations. METTLER TOLEDO s contribution METTLER TOLEDO gave two examples of how to accomplish greater userfriendlness for in-line analytical equipment. Firstly, a significant development in the measurement principle, e.g. from amperometric to optical dissolved oxygen, can lead to improved reliability and easier sensor handling. Secondly, a powerful tool for optimizing maintenance intervals and avoiding unscheduled process downtime is METTLER TOLEDO s Intelligent Sensor Management (ISM) concept. This technology is available for process ph, conductivity and dissolved oxygen measurement systems. The ISM offering is completed by the isense software package for maintenance and pre-calibration of field sensors in a safe and clean environment, e.g. a laboratory or workshop. Acknowledgement We would like to thank the Zurich University of Applied Sciences for the invitation to this congress and look forward to the next Chemical Sensors Forum. For more information on addressing these challenges, go to: ph electrode InPro 3250 i Transmitter M420 METTLER TOLEDO Dairy News 7 4

5 ISM and isense a Unique Concept Intelligent Sensor Management Intelligence Starts in the Head You want to optimize your processes, reduce maintenance and suffer less downtimes. METTLER TOLEDO s Intelligent Sensor Management (ISM) for ph and DO can do it all and more! Why do I need ISM? Intelligent Sensor Management reduces the installation, maintenance, and calibration effort for METTLER TOLEDO s new digital sensors to a minimum. This considerably improves your process reliability, productivity and system availability. ISM for advanced process analytics A sensor with ISM technology is equipped with an integrated chip in the sensor head that stores all relevant parameters, and algorithms that provide enhanced sensor diagnostics. Now you know more than precise process measurements; you also know when a sensor needs calibrated, cleaned or replaced. So now you can conduct maintenance only when it is required! Quick sensor replacement with Plug and Measure Calibration values and calibration history are stored in the microprocessor in the sensor head. This allows sensors to be pre-calibrated in the controlled environment of a maintenance shop or laboratory, then stored ready for use. Replacing a failing sensor with a pre-calibrated one is quick and simple. Complete sensor asset management Using a standard PC and METTLER TOLEDO s proprietary isense software, true asset management is at hand. With isense you can store the complete sensor calibration history in a database. Thanks to isense, the fast and easy exhange of pre-calibrated sensors saves you time and improves process control. When is a sensor about to fail? As well as recording the process measurement precisely, the ISM sensor continually monitors itself, therefore it can estimate its own lifetime! The Dynamic Lifetime Indicator makes sensor maintenance more efficient and more dependable. Process reliability is greatly improved as process downtime and loss of product quality due to sensor failure are minimized. Further features All transmitters from METTLER TOLEDO can be used with ISM sensors. Connection of ISM sensors requires only two cables instead of up to eight with analog sensors Digital signal transmission is extremely stable, even under very harsh conditions. METTLER TOLEDO intelligent solutions Our wide product range covers all high demanding applications in the Dairy industry. Discover more at: isense Asset Suite 5 METTLER TOLEDO Dairy News 7

6 Process Analytics Product Catalog New Edition 08 / 09 Available Get an overview of the latest INGOLD and THORNTON products available for your process application with the new product catalog 08 / 09. The catalog offers comprehensive overviews on product features and specifications, benefits and recommended application areas, order details and much more for process analytics measurement solutions. The product catalog covers complete measuring solutions for these parameters: ph Dissolved oxygen and O2 in gases Ozone Dissolved CO2 Conductivity Turbidity TOC Flow The featured product range includes: Electrodes / sensors Housings Process connections Transmitters / analyzers Cleaning and Calibration systems Cables Accessories Order your copy of this useful desk tool today! Mettler-Toledo Ltd 64 Boston Road Beaumont Leys Leicester LE4 1AW Tel: (0) Fax: (0) enquire.mtuk@mt.com Mettler-Toledo AG Process Analytics Im Hackacker 15 CH-8902 Urdorf Switzerland Visit for more information