Humidity values in glasshouses are important indicators for good plant growth. Or to avoid plant diseases. High air humidity can stimulate the growth of harmful fungi, promote other diseases or impair the nutrient uptake of plants. The relative humidity should ideally lie in a range of 50 - 85 %RH.
The measurement and monitoring of relative humidity make it possible to control humidification and fogging systems. They come into action when the humidity is too low. If the humidity is too high, a ventilation or heating system can help. In all cases, use of these systems should be controlled optimally to keep energy costs down.
When storing fruit and vegetables, it is vital to maintain optimum storage conditions to protect against loss of moisture, prevent decay and extend the lifetime of the produce. To control the atmosphere in fruit and vegetable warehouses, relative humidity, temperature and CO2 values are monitored. At a relative humidity of above 90%, the loss in weight through drying is kept within tight confines.
The measurement and monitoring of relative humidity is just as important in feed drying and storage as it is in big-bale technology and seed storage.
The effects of simulated and accelerated environmental changes on plants are investigated in special climate chambers. Instruments to measure humidity, temperature and CO2 are used in these chambers.
One focus in seed storage and research is the measurement of water activity.
The Rotronic HygroLab is an innovative high-end laboratory analyzer for water activity measurements with up to four measurement probe inputs. Simultaneous or asynchronous measurement with the tried-and-tested AW Quick measuring function for pharmaceutical products, tobacco, coffee, food and many more. Learn More
The HygroFlex5-series is the latest development in measurement transmitters. Measures humidity, temperature and dew point. This measuring device calculates all the psychrometric parameters in the fields of pharmaceuticals, food, HVAC and across Industry. One outstanding feature of this measurement device is the possibility to output any psychrometric calculation as an analogue or digital signal. Learn More
In many situations it can be very useful to measure water activity in production or storage rooms, e.g. inspection of bulk materials to ensure they meet specifications. Learn More