30 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 110
Energy-Efficient Ventilation with the Climate Guard: Optimum Indoor Climate with Minimum Energy Expenditure
The Climate Guard from J. Dittrich Elektronic (Germany) is a network-compatible multi-sensor system that facilitates demand-controlled, energy-efficient ventilation for special-purpose buildings.
It measures the important parameters of indoor air: the carbon dioxide concentration by means of a dual beam infrared photometer (NDIR); the temperature by means of a bandgap sensor; and the relative humidity by means of a capacitive polymer. Both the power supply and digital transmission of measured values are effected via an Ethernet connection (PoE). Since the Climate Guard has its own web server, it can be integrated directly into a local network or the Internet and data called up using a web browser. This is ideal for automated buildings.
All three measured variables increase in indoor air in proportion to the number of people present. For this reason they help to control ventilation such that only the exact amount of fresh air that is actually required is drawn in from outside. Ultimately, exhaled carbon dioxide, human emanations and volatile organic substances from interior fixtures and fittings would otherwise accumulate in the indoor air, making people tired and lacking in concentration. Too much air exchange, by contrast, such as when the room is empty, would dissipate unnecessary amounts of energy. Depending on the model and room use, the possible energy saving for energy-efficient, demand-controlled ventilation compared with time-controlled or uncontrolled ventilation is between approx. 20 and 70%.
Reader Reply Card no 111 New Data Logger Is Now Available
The new HygroLog HL-NT data logger from Rotronic (Switzerland) with HygroClip2 sensors and the AirChip3000 is a powerful system when there are many different physical parameters to record. The logger also meets all requirements for FDA, CFR Part 11 and GAMP compliance.
The HygroLog HL-NT is the perfect measuring instrument for applications in which long-term recording of humidity and temperature values is critical. The Rotronic data logger is indispensable in the pharmaceutical, food industries and in electronic parts production. The HygroLog NT is also an ideal companion for recording measurements during the transportation of goods and foods, in store monitoring, and in climate controlled zones such as museums, schools, libraries and hospitals. The recorded data provides valuable information about the environmental conditions, which can sometimes seriously affect people, animals, materials and objects.
Although the newly developed data logger deals with complex measurements, its simple operation, accuracy and guaranteed long-term stability make the HygroLog NT very attractive to own.
The data logger system can be used with a wide range of HygroClip2 sensors, and it is this variety that offers users such great flexibility for a customer-specific measurement system.
The data logger can record up to 1,500,000 measurement values (storing them on a 32MB flash card). Data can be downloaded with
a standard card reader, PDA, PC with HW4 Software, or docking station. Overall range of the logger: 0...100% relative humidity / max. –100 .. 200o
C (sensor-dependent); precision: sensor-dependent to 1% relative humidity with SCS calibration certificate; alarm via e-mail, acoustic signal or LED; freely configurable relay contacts; operates with standard alkaline 9V batteries or rechargeable; can also record data from other external analog sensors (optional docking station); and optional TCP/IP RJ45 & RS485 interface guarantees full integration in a network.
Reader Reply Card no 112 New Interactive New Product Brochure
Omega Engineering (UK) has published a New Product Showcase using the latest "page turning" software. This allows simple online product browsing and navigation, with viewing of the complete brochure in an easy to view format giving the user an interactive feel of a real book on screen!
There are over 50 New products manufactured by Omega, including sensors for temperature, pressure, load,
force, level and flow measurement as well as instrumentation including controllers, data loggers, hand held meters and transmitters.
The publication details equipment for hygienic and automation applications, custom design pressure transducers and the latest technology in wireless measurement along with a technical reference article on strain gauge fundamentals. All 16 pages have direct links online to full product specifications and pricing. To view the New interactive eBook go to:
http://www.omega.co.uk/ebook
Reader Reply Card no 113
When contacting companies directly from this issue of Asian Environmental Technology, please tell them where you found their information.
Thank you, AET. Reader Reply Card no 114
AET
April/May 2010
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