Environmental Analysis New Condensation Monitor
Cooling ceilings, critical areas in HVAC and technical installations, which are operating close to the dewpoint temperature, need an early alarm system against the forming of moisture, because of the potential danger of condensation. The new condensation monitor EE46 from E+E Elektronik (Austria) is specially designed for such applications and can be installed in a few seconds on pipelines, walls, and ceilings.
The early detection of “danger of condensation” and as a result the immediate start of counter measures renders this product as very significant. A special coating protects the sensor and electronics against dirt and dust – a guarantee for a longstanding, stable and above all maintenance free operation.
The fast response, high accurate E+E humidity sensor is exposed to the temperature of the surface of the object by means of a thermal conducting foil. Therefore, the humidity sensor measures the same relative humidity as is present at the surface of the object to be monitored.
If the preset set point of 90 %RH is exceeded the EE46 switches a potential free contact and provides a signal enabling to take early counter measures, e.g. to increase the temperature of the water in the pipe, to decrease the cooling power or to turn on the heat. In addition, a LED on the enclosure indicates the actual status.
The condensation monitor of the Series EE46 is designed to be powered by 24 V ac/dc and is the ideal solution for the early detection of condensation – another innovative member of the E+E HVAC assortment.
Reader Reply Card no 60 World’s Smallest Digital Humidity Sensor
With the new SHT21, Sensirion (Switzerland) launches the world’s smallest digital humidity and temperature sensor. The SHT21 consists of a newly designed, sophisticated sensor chip encapsulated in a 3x3x1.1-mm DFN 3-0 package. Over-molding provides excellent protection against aging and ambient impact, such as condensation and harsh environments, and thus yields outstanding long-term stability.
The SHT21 is fully calibrated and provides an I2C digital interface. Analog output modes (such as PWM) are available on request. The digital communication mode enables superb
low power consumption: A value in the range of 3µW at normal operation is well achieved. Typical sensor accuracy is ±2% RH over 20–80% RH and ±0.3°C over 25–42°C. Provided on tape & reel, the reflow solderable SHT21 is suitable for high volume applications. Furthermore, the sensor is qualified in accordance with automotive standard AEC-Q100 and an extended quality assurance program guarantees low PPM values.
Reader Reply Card no 62
...when nature dictates the scale –
Schwarzer.com
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New Metrohm Brochure and Webpage «RoHS Analysis» The RoHS directive 2009/95/EC limits the maximum content of
hazardous substances allowed in electric and electronic products. The new Metrohm brochure «RoHS analysis» describes proven methods and instrumentation for the safe and accurate quantification of the substances regulated by the directive. The brochure can be ordered free of charge and is also available on the new webpage
rohs.metrohm.com.
«RoHS analysis» describes proven wet-chemical methods to
determine heavy metal traces, polybrominated bipyhenyls (PBB) and diphenyl ethers (PBDE) as well as methods for the simultaneous determination of halogenated compounds in solid and liquid combustible samples. Methods described include voltammetry, ion chromatography and the combination of coumbustion and ion chromatography (Combustion IC). Special mention must be made of the straightforward determination of hazardous species of heavy metals such as Chromium(VI) using voltammetry.
«RoHS analysis» is a highly valuable compendium for anyone involved in chemical analysis to check compliance with the RoHS directive.
Reader Reply Card no 61
International Environmental Technology will be exhibiting at IFAT Ensorga Hall A4 Stand 138.
Come and meet the team to discuss your next marketing promotions
Reader Reply Card no 63
Record Sales of 112 Litre Non-Refillable Aluminium Cylinder (112DA)
Scientific and Technical Gases (STG) are delighted to announce record sales of its revolutionary 112 litre aluminium disposable cylinder (112DA) in 2010. According to Chris Street, Managing Director “our sales of the 112DA cylinder have increased by over 200% in our last financial year. The growth is due primarily to both gas detection OEM’s and Distributors recognising the advantage of twice the gas volume as the American 8AL cylinder, for little extra cost”.
STG manufacture a complete range of calibration gases in both non-refillable and high pressure refillable cylinders at their plant near Stoke-on-Trent in the UK. All STG non-refillable cylinders
are fully approved for use and transportation in Europe to ISO Standard 11118. STG have recently finished construction of its new dedicated non-refillable cylinder facility in the Stoke. This will allow the company to meet the increased demand expected in 2011 and 2012.
In addition to supply from the UK, STG has a number of strategic hubs holding stocks of non-refillable cylinders for immediate despatch in Dubai, Singapore, Sydney, Perth and Florida.
Reader Reply Card no 64 Reader Reply Card no 65
miniature pumps Schwarzer Precision GmbH + Co. KG Steeler Strasse 477 Tel ++49 201. 31697-0 Fax: ++49 201. 31697-29 45276 Essen
info@schwarzer.com Germany
Annual Buyers Guide 2010
IET
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