Moisture is a crucial factor is weighing with regards to certain applications. Amount of moisture can significantly manipulate results. So, it is very important to measure the moisture properly. A moisture balance is used to determine moisture levels in chemicals, pharmaceuticals, food products, grains, wood, soils, and sludge. Moisture content can directly impact product quality as well as research applications. To determine moisture in the product, there is a methodology to be followed.
First, use the balance to measure its original weight, dry the product, and then assess the decrease by the change in weight. This gives a correct calculation of moisture content. Certain features of moisture balance are, measuring percentage of initial substance, measuring percentage of residual dry mass, measuring solid percentage, temperature per time recording, drying curve, heating elements such as quartz halogen lamps, circular halogen, infrared etc.
Enhanced features of a moisture balance include multiple drying modes such as automatic or semi-automatic or times, programmable memory, space-saving design, built-in statistical functions etc.
For effective use of moisture balance, certain things have to be taken care of. While using halogen lamps, use two or a circular one to cover more surface area. Ceramic heating elements quickly rise to the designated temperature ensuring even heat distribution over the entire surface and preventing localised overheating. Infrared heat dries very quickly as compared to halogen lamp. Microwave also dries up products very fast. However precise heat control is necessary while drying with this method.
While setting up a moisture-balance, let the unit warm up for around 30 minutes. While using glucose syrup or pasty substances, mix with quartz sand. Always make sure that the surface area in uniform, without unbalanced distribution.