Portable moisture evaporation measurement device / Model number M2857S-VT20RSN
Portable closed chamber method for measuring water vapor transpiration.
● The closed chamber design allows for accurate measurements without being affected by external air turbulence or airflow. ● Measurement time is very short, ranging from 5 to 14 seconds. ● High-resolution A/D conversion enables accurate measurement of both trace and large amounts of evaporation. ● Response correction, forced stop time correction, moving average integration, and absolute humidity conversion processing ensure minimal error and accurate measurements. ● The high-performance CPU built into the main unit constantly monitors the temperature and humidity within the chamber, displaying optimal measurement start conditions, and automatically determining the best measurement time to consistently obtain accurate readings. ● The most critical humidity sensor employs the latest thin-film, high-sensitivity, fast-response type that shows no long-term fluctuations, ensuring reliable measurements. ● Battery operation is also possible, allowing for handheld measurements in various environments. ● The probe can measure with light contact pressure, making it suitable for measuring small animals.
basic information
■Measurement Principle By pressing the opening against the skin, a closed chamber state is created, and the humidity of the air inside the chamber increases in accordance with the moisture evaporating from the skin surface at the opening. The transdermal water loss (TEWL) is calculated based on the change in the rising absolute humidity. Furthermore, since the response of the humidity sensor depends on relative humidity, response correction is performed by the built-in CPU, allowing for accurate quantitative measurement of TEWL in any environment.
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Moisture meter
