Focus on Meteorological Equipment
New Transfer Standard Hygrometer for Environmental Test Applications
MBW
Calibration is a Swiss manufacturer of transfer standard chilled mirror dew point hygrometers used at most National Metrology or Designated Institutes. The precision and stability of
dew point mirrors is such that they are used as transfer standards in many humidity/moisture measurement applications and for traceable calibration.
With the introduction of the new 473-SHX high temperature dew point mirror, measurement precision at high operational temperatures reaches a new level of performance in industrial applications such as climatic test chamber calibration or validation.
Dew point mirror hygrometers measure on the basis of thermodynamic equilibrium between the sample gas and the condensation layer. Instability of sample pressure and fl ow results in non-stable measurements, especially at high temperatures and when the output value is relative humidity (RH).
For dew point measuring heads placed directly in to test chambers, the challenge to our development team was to provide stable fl ow whilst meeting an operational temperature requirement of 125°C. The solution is a completely new design sample gas fl ow module based around a high temperature micro motor and a custom turbo impeller that fi ts directly to the SHX measuring head.
The cable mounted SHX measuring head is also available with a temperature control option that enables the test engineer to set the head temperature to avoid condensation during transitions or stabilise gradient effects in small test chambers. The result is a dew point mirror that can measure precisely over a wide operating range with consistent measurement precision and no temperature coeffi cient.
This new instrument brings laboratory precision to a wider range of industrial, calibration and test applications. In combination with the MBW T12 multichannel thermometer and GeckoR2 software, RH and temperature homogeneity evaluation can also be performed. With all measurement parameters calibrated to an ISO17025 standard, traceable, low uncertainty calibration is now possible over the range -50 to +125 °C and humidity up to 100 %rh.
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HyQuest Solutions, part of the Kisters Group offer a wide range of quality tipping bucket (TB) rain gauges. There is a TB for every budget and application. A receiver of 200 or 300mm diameter collects the rainfall which is strained by a metal gauze before being passed to the TB’s measuring system. Tips of the bucket occur with each 0.1mm, 0.2mm, 0.5mm, 1.0mm or 0.01inch of precipitation collected and a reed switch produces a momentary contact closure signal for logging in data loggers or creating a display on rainfall counters.
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40430pr@reply-direct.com 42217pr@reply-direct.com
Meteorological Technology World Expo 2017: Amsterdam RAI 10th to 12th October
Madrid, September 2016 saw more than 4,000 people arrive in Spain from over 100 countries, for the largest meteorological technology event ever staged; Meteorological Technology World Expo.
200 exhibiting companies and nearly 150 leading- edge conference papers offered rich product line- up and content, sparking the industry’s largest networking event.
The annual international Meteorological Technology World Expo brings together thought- leaders and innovators, to further research and industry access to the latest technologies and services on offer.
Now in its 7th year, Meteorological Technology World Expo 2017 promises more of the same, when it opens its doors at the world-class Amsterdam RAI from 10th to 12th October.
Visitors can expect to see the very best in hydro-meteorological monitoring and prediction, environmental and climate monitoring technologies, weather services, remote sensing and data provision and aggregation. Also on show will be examples of the latest software and visualisation and tools to build weather resilience in all businesses/entities for whom/which weather is a profi t, safety or operational factor.
A comprehensive program of multi-industry technical conference sessions will combine with workshop style programs hosted by leading technology vendors, to give end-users practical knowledge of best-practise solutions, and it’s completely free-to-attend.
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Calibration of Humidity and Temperature Instrumentation
A Tip On Rain Gauging
Laboratory Precision for Meteorological Applications
• Calibration systems • Humidity generators • SCS 17025 accredited calibration service • Range of options to suit most budgets
• Transfer standards • High performance • Low uncertainty • Training and consultancy
To meet the target accuracy or uncertainty requirement specified by the CIMO guide, calibration uncertainty needs to be optimised. MBW supplies transfer standard hygrometers and humidity generators that in combination resolve low uncertainty calibration in the laboratory or on-site. Please visit our web site for more information, send us an email, or give us a call.
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REFLECTING YOUR STANDARDS
7776ad@reply-direct.com www.envirotech-online.com IET March / April 2017
MBW Calibration AG Seminarstrasse 55/57 CH-5430 Wettingen Switzerland
Phone +41 56 437 28 30 Fax +41 56 437 28 40
www.mbw.ch sales@mbw.ch
SCS 0125 ISO/IEC 17025
ACCREDITED Visit us at MTWE Booth # 5060
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