47 Mass Flow Meters Helps Brewer Keep its Head
The Max-Trak 180 mass flow meter from the Sierra Instruments range distributed by Litre Meter has been selected by Orval Brewery to help it get exactly the right amount of head on its famous Trappiste beers. The Max Trak 180 was selected because it allows precise accuracy and repeatability, remote monitoring and offers rugged wash down protection. The Sierra Max Trak 180 already has a proven track record in the brewing industry being used by Heineken, Europe’s largest brewers.
Sierra’s Max Trak 180 mass flow meter was chosen because it is robust enough to work in factory conditions but allows accurate measurement and control of air and gas. It is being used by Orval to precisely measure the injection of nitrogen into its beer to create the perfect head. In addition, the brewery is making use of the meter’s Dial-A-Gas®
optimum aeration during fermentation, making it integral to the brewing process. Sierra’s state-of-the-art Dial-A-Gas®
capability to achieve
uses an internal microprocessor which is pre-programmed with ten gases that are commonly used in biotech, pharmaceutical, analytical and research applications – others gases can be substituted to customise the flowmeter for specialist applications. This technology allows the instrument to be used for multiple applications, creating great flexibility as well as helping to reduce spares inventory.
In applications like beverage processing where frequent wash-down/hose-down is required, Max-Trak outperforms the competition as it conforms to the rigorous requirements of NEMA 6 and IP67. Reliability and instrument stability result from an inherently linear design, advanced platinum sensor technology and a valve that accepts variations in process conditions. Max- Trak controls gas mass flow from 10 to 1000 standard liters per minute. It has a repeatability of +/-0.2%, which ensures a stable process even under changing conditions. Its direct valve design means that operation at low differential pressures is possible.
Circle no. 452
Direct Elemental Analysis of Environmental Filter Samples
China International Scientific Instrument and Laboratory Equipment Exhibition
The 8th
Exeter Analytical, Inc has published an application note describing direct determ- ination of total Carbon, Hydrogen and Nitrogen in environmental air and water filter samples.
Described in application note 210 - the optimised methodology, using an Exeter Analy- tical Model CE440 CHN elemental analyser, requires a minimum of sample preparation and may be used for single samples or automated for higher throughput environments. The Model CE440 is a static combustion system, with a unique horizontal furnace design, which enables easy removal of filter and sample ash between each analysis. Consequently one combustion tube will analyse in excess of 1000 samples without the need for removal and cleaning. In addition the Model CE440 provides the capacity to process filters up to 47mm in diameter in one analytical cycle.
By comparison other elemental analysers, employing vertical furnace designs, need cleaning after as little as 20 samples and larger filters have to be sub sampled several times and then corrective calculations made to enable analysis. Effectively eliminating troublesome residue build-up the gas flow characteristics of the Model CE440 analyser are superior to other elemental analysers thereby providing longer- term calibration stability as well as enhanced accuracy and precision for measured sample data. The Model CE440 also provides complete control over combustion parameters enabling the analysis of filters without the need for expensive tin capsules.
Direct determination of total CHN retained on a filter is more sensitive, precise and cost- effective than making measurements on pre- and post- filtered samples and calculating the difference. This has been confirmed in a study conducted for the EPA on particulate concentrations in water samples from the Chesapeake Bay Monitoring Programme. Direct determination is preferred over the traditional ‘by difference’ method because of the former's reduced sources of error, rapidity of analysis and increased sample representativeness due to the greater volume filtered.
Circle no. 451 8-10 April 2010
Beijing Exhibition Centre Organiser:
China Instrument Manufacturers Association
CISILE 2010 Exhibitor Opportunities: Developing new markets Establishing new agents
Networking with new business contacts Sourcing new suppliers and services Presenting technical seminars
Are you interested in exhibiting at CISILE 2010? In Europe
In Asia
Please contact Marie Izzard Email:
Mizzard@optusnet.com.au • Tel: +61 (0) 2 9979 6886
Please contact Twan Heesakkers Email:
twan@intlabmate.com • Tel: +31 (0) 40267 6850
Circle no. 453
LAB ASIA - NOVEMBER/DECEMBER 2009 - LABORATORY PRODUCTS
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