If you want to measure the moisture level in a given place, you need a moisture analyzer. The device is an alternative to oven testing methods that make use of heat and dry samples. Moisture testing is an important part of many industries and you can use this guide to help you find out everything you need to know.
What is a Moisture Analyzer?
The basic definition of a moisture analyzer is a laboratory device used to measure how much moisture is present in different substances. The purpose of this process is varied and could be for quality control, research, and development, as well as creating peace of mind when it comes to product integrity in a long list of industries.
Some examples of industries that rely on accurate moisture analysis include:
- Cosmetics
- Chemicals
- Agriculture
- Pharmaceuticals
- Food processing
The reasons this is important are also varied and depend on the industry. Some of them are as follows:
- Maintain product consistency
- Stay compliant with regulations
- Prevent spoilage, degrading of the product and poor formulation
- Optimize production
How Does the Device Work?
The principle of thermogravimetric analysis (TGA) is very important for the operation of a moisture analyzer. As the device heats the sample in question, it keeps track of the weight loss that occurs in the sample. The weight changes in direct proportion to the amount of moisture the sample contains. Once the sample reaches a stable status without any moisture, the results can be recorded.
What is a Moisture Analyzer Used For?
As mentioned above, there are many industries that use a moisture analyzer. They rely on the device for quality control and product development. The device can be used to test the moisture content in raw materials, finished products, liquids, solids, powders and pastes. Some examples are as follows:
- Grains
- Cheese
- Cereal
- Seeds
- Polymers
- Adhesives
- Building materials
- Pharmaceutical products
Drying Modes
Depending on the goals of testing, there are a couple of drying modes that can be used during the operation of a moisture analyzer.
- Rapid – to control heating, the temperature is increased slowly during a given time frame.
- Single – with no temperature adjustments, this mode utilizes a constant temperature throughout testing, regardless of duration.
- Step – using pre-set time intervals, the step mode changes the temperature in a customized way for the sample in question.
Accuracy of a Moisture Analyzer
There are several factors that play a role in how accurate a moisture analyzer is. Clearly you want the most reliable results you can get so it’s important to keep your device well maintained and fix issues as they arise. Some things that influence accuracy include the following:
- Quality of the calibration mechanism and operation
- Sample homogeneity
- Operator skill and ability
- The external conditions
Using a moisture analyzer offers a simple and accurate way to keep track of the moisture content of a given sample. If you are ready to add one to your collection of instruments, we’re here to help you find the best one to suit your needs. Contact Laboratory Instrument Specialists today to get started.
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