Water content or moisture content or moisture content is the amount of water mass contained in a material, such as soil (called soil moisture), rock, ceramics, fruit, wood, cheeses, raw materials for the plastics industry, powders, etc.The operation of moisture balances uses the principle of measuring the moisture content of the material by the principle of water loss in drying (LOD - Loss On Drying).This is one of the most accurate methods available for determining the moisture content of a material.
What is the principle of operation of moisture Balances?
Moisture content is usually expressed as a percentage by weight of the product tested "wet" (wet initial sample) and can not exceed 100%.At the beginning of the process the initial wet sample is considered.The sample is then dried and weighed repeatedly until the sample weight does not show weight fluctuations.The weight of the sample after completion of the drying process is compared with the weight of the sample before drying, and an absolute final moisture content is obtained or relative (percent) to the original sample weight.It is important to heat the sample enough so that the material releases moisture / humidity / water without burning.
Therefore, a maximum heating temperature in the humidity balances should be set to suit the heat tolerance of the sample material.The actual drying time depends on the moisture / moisture content of the sample and the amount of sample tested.
Moisture balances are designed to make the process of measuring moisture in a material simple and convenient by combining a drying chamber, precise scales, and a sophisticated computerized processor containing special software
How does a moisture balance work?
The computerized processor in the humidity balances automatically records in its memory the initial weight of the sample and monitors the weight of the sample throughout the drying process.If according to a precision scale built in advance and / or determined by the user, when no weight difference is created after performing several measurements, the drying process ends and the measurement data is recorded automatically.Moisture scales offer a great saving of time, compared to using a conventional drying oven, during which at regular intervals the sample has to be manually removed from the drying oven and weighed again and again.Another advantage of the moisture balances of is the ability to change the heating temperature and adjust it automatically during the drying process of the sample, according to the nature of the dried material.
The drying processes can be stored in the computer processor's memory as a reusable program, thus ensuring recoverable measurements.
You can track the data measured in real time in the display on the scales and / or on the computer connected to the scales.
The measured data can be stored or printed for documentation purposes.
MUNRO provides a wide range of Moisture balances in the Lab balances category