September 2009Analytical Instrumentation & Environmental Monitoring
Humidity measurement probes with active intelligence.
Rotronic’s HygroClip2, with integrated AirChip3000 technology, takes humidity measurement to the next level in terms of accuracy, operating range and OEM flexibility. Most notably, the product meets the requirements of the FDA regulations and also recently won the ‘Indoor Air Quality’ innovation award at the 2009 International Airconditioning, Heating and Refrigeration Exposition (AHR Expo) in Chicago.
The new AirChip3000, which forms the core of the HygroClip2, is able to analyse, diagnose and alert. Its capabilities include compensating humidity and temperature at 30 000 reference points, recording 2000 data points and calculating the dew/frost point.
It consists of an application specific integrated circuit (ASIC), micro-controller and an electronic memory (EEPROM). In addition, the sensor has been improved and the AirChip3000’s intelligence enables advanced sensor diagnostics. Should the RH sensor deviate from factory defined parameters, measurement values can be automatically corrected and an alarm generated.
Multi-use possibilities
The new HygroClip2 can be used as a simple climate probe for measuring ambient conditions, or as a more sophisticated cable probe for high temperatures and other special uses. It is able to store valuable information which can be retrieved for analysis and audit purposes. It is easy to use and can function either as a standalone device or will easily integrate into an OEM application. It works with almost all analog and digital systems.
Accuracy
HygroClip2 provides reproducibility and a guaranteed system accuracy of <0,8% r.h. and 0,1°C. Its thermal response times have been significantly improved and new filter technology provides a high level of protection for the sensor against environmental influences. These features and an operating range of up to 200°C provide a superior level of performance and measuring accuracy. The AirChip3000 will be at the heart of future Rotronic instruments.
Performance benefits
Peter Fleming, one of the members of Action Instruments SA, states, “Although competitors’ products measure humidity and temperature, the HygroClip2 supplies additional information of an important nature. It remembers the past through datalogging and calibration history, and can look into the future with self-diagnostics.”
The HygroClip2 is suitable for use with all new Rotronic products – from handhelds, transmitters and dataloggers to the meteo probe. It is currently being used by the following South African clients: ABB South Africa, Aspen Pharmaceuticals, Gubbs and Inggs, Industrial Thermodynamics, Labcal Solutions, Munters, Rovac Engineering, Steren Support Systems and the University of Cape Town.
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