When we want to purchase a climate chamber that controls temperature and humidity, there is one variable that must be taken into account: the relative humidity control of the test.
Relative humidity is a point that is sometimes difficult to understand and is defined as the amount of water vapor present in the air relative to the maximum possible for given pressure and temperature conditions. In other words, the relative humidity percentage (% r.h.) depends on the current temperature. As the temperature changes, the relative humidity changes; the higher the temperature, the higher the possible relative humidity percentage.
Typically, climate chamber manufacturers provide a temperature versus relative humidity percentage diagram where the chamber can operate. The normal humidity range for test chambers is usually between 10% and 98% r.h., ranging from +10°C to +90°C. It’s important to keep in mind that test chambers use the dew point as a direct indicator of the actual amount of moisture present in the air: a higher dew point means more humid air.
Before purchasing a climatic chamber, analyze the temperature and humidity tests you will need to ensure that your chamber will meet your needs. Check the temperature and humidity diagram provided by the chamber to ensure it can work within these limits. Remember that optional items can be supplied when climatic tests are outside the standard chamber range.
Consult with DYCOMETAL’s technical and commercial department to select the equipment that best suits your needs.
