Higher energy efficiency and enhanced room comfort thanks to air quality sensors

Siemens launches revised Symaro family

Zug, Switzerland, Siemens’ Building Technologies Division has completely revised and complemented its range of Symaro air quality sensors. The innovative products are designed for use in rooms or air ducts and facilitate demand-controlled ventilation, thus ensuring the highest room comfort levels and maximum energy efficiency of ventilation plants.

The Symaro air quality sensors marketed by Siemens’ Building Technologies Division are designed for installation in rooms or air ducts and – depending on the model – measure the air’s carbon dioxide (CO2) content, volatile organic compounds (VOC), temperature (T) or humidity (H), either as individual variables or in combination. As a novelty, the revised product line includes sensors that acquire exclusively the VOC level in the room or air duct. In addition, new multisensors with active CO2 parameter and passive temperature measurement are introduced, enabling customers to fit the required sensing element, thus ensuring full flexibility with regard to application. What’s more, the new Symaro generation allows customers to choose between output signals of DC 0…10 V and DC 0…5 V for all measurement parameters.

The Symaro family includes models with an easy-to-read LCD. The CO2 reading is in ppm (parts per million). With the CO2/T and CO2/T/H multisensors, the measured values are displayed alternately. The CO2/VOC sensors also show the maximum measured values in the form of a bar chart. All models are also available without display.

The Symaro air quality sensors from Siemens are used to provide demand-controlled ventilation depending on the level of indoor air quality. In contrast to conventional ventilation control, the amount of outside air supplied to the room is not calculated for maximum occupancy, but depends on the current indoor air quality resulting from the present occupancy level. This means that demand-controlled ventilation saves costs due to lower energy consumption and guarantees enhanced comfort and a healthier room climate thanks to improved indoor air quality. Savings are particularly high in buildings with changing and unpredictable occupancy levels. Such buildings include office buildings, restaurants, hotels, congress centers, lecture halls and theatres. The Symaro air quality sensors can be straightforwardly integrated in existing HVAC systems, thus offering optimum cost efficiency.

The Symaro air quality sensors are part of Siemens’ Environmental Portfolio. In fiscal 2009, revenue from the Portfolio totaled about EUR23 billion, making Siemens the world’s largest supplier of ecofriendly technologies. In the same period, the company’s products and solutions enabled customers to reduce their CO2 emissions by 210 million tons. This amount equals the combined annual CO2 emissions of New York, Tokyo, London and Berlin.

The Siemens Industry Sector (Erlangen, Germany) is the worldwide leading supplier of environmentally friendly production, transportation, building and lighting technologies. With integrated automation technologies and comprehensive industry-specific solutions, Siemens increases the productivity, efficiency and flexibility of its customers in the fields of industry and infrastructure. The Sector consists of six divisions: Building Technologies, Drive Technologies, Industry Automation, Industry Solutions, Mobility und Osram. With around 207,000 employees worldwide (September 30), Siemens Industry achieved in fiscal year 2009 total sales of approximately €35 billion. http://www.siemens.com/industry

The Siemens Building Technologies Division (Zug, Switzerland) is the world’s leading provider of safe, secure and energy efficient solutions for buildings („Green Buildings“) and building infrastructure. As a service provider, system integrator and product supplier Building Technologies offers building automation, HVAC, fire safety, security, electrical installation technology and low voltage power distribution. With around 43,000 employees worldwide (September 30), Building Technologies achieved a turnover of €7.0 billion in fiscal year 2009.www.siemens.com/buildingtechnologies

Reference Number: IBT201009028e