NIR meters only take the moisture level at the surface. If you are concerned about your sample having different moisture levels throughout, you may need to consider a LOD meter. Otherwise, NIR meters, once calibrated, are highly accurate and nearly insusceptible to operator error.

NIR moisture meters measure the absorbance and reflectance of light to determine the moisture levels: The more light that is absorbed, the higher the moisture content. The light is filtered into a wavelength, or in some cases, multiple wavelengths. No matter the industry, there’s a use for NIR technology.

The NIR sensors are extremely sensitive instruments that are optimized to measure the absorbancies of samples at these specific wavelength regions. Shining light at these wavelengths causes the corresponding chemical bond to vibrate and absorb energy.

A Moisture Analyser, which is also referred to as a moisture balance or moisture meter, is an instrument used for the determination of the moisture content of a sample. It consists of an infrared weighing and heating unit.

If someone uses a moisture meter but doesn’t get accurate assessments of moisture content (%MC), then they could make a mistake based on that bad information which costs time, money, and resources. Sometimes, people using moisture meters can make a mistake that causes inaccurate moisture measurements.

For a less-expensive option, some moisture meters are accurate to within 5 percent. This still represents a reasonable accuracy rating for the average DIYer, but if a project or professional requires a more precise measurement, it is best to stick to the high-end models.

NIR spectroscopy can be used for product identification, classification and quality control, as well as for the determination of product properties (chemical and physical) and component concentrations in process applications, all with the object of rapid analysis.

Near-infrared spectroscopy is used in astronomy for studying the atmospheres of cool stars where molecules can form. The vibrational and rotational signatures of molecules such as titanium oxide, cyanide, and carbon monoxide can be seen in this wavelength range and can give a clue towards the star’s spectral type.

Near Infrared Spectroscopy and Imaging (NIRS) uses near infrared light between 650 and 950 nm to non-invasively probe the concentration and oxygenation of hemoglobin in the brain, muscle and other tissues and is used e.g. to detect changes induced by brain activity, injury, or disease.

What exactly is an infrared moisture analyzer? The equipment determines moisture of a sample by heating and drying it with infrared irradiation and displays the moisture content measured from changes in mass due to evaporation.

How to calibrate a moisture analyzer

1. Make sure the moisture analyzer has been on for about an hour, and let it cool for 3 hours if you were using it.
2. Put a sample pan in the PMB.
3. Place the temperature probe to be used to monitor the temperature on the sample pan.
4. Close the chamber.

Readings on a moisture reader will generally range from 5 to 40 percent. A range of 5 to 12 percent is considered optimal. A reading of up to 17 percent is generally considered moderate moisture and acceptable.

Utilizing state of the art NIR (Near Infrared) technology allows the user to achieve the highest quality product from accurate, real time data. The IR3000 series are the flagship sensors providing an on-line moisture analysis for instant, non-contact measurement of virtually any product and raw material.

Kett near infrared (NIR) moisture meters utilize the principle that water absorbs certain wave-lengths of light. Once your meter has been calibrated against your existing lab or production standard, the Kett NIR Moisture Meter provides instantaneous moisture measurements — without contact or sample preparation!

The CCS-3000 chemical and mineral moisture analyzer is MoistTech’s NIR (Near Infrared) online moisture management for instant, non-contact measurement for coke, coal & sinter materials. Precision filters and algorithms have been incorporated to optimize performance under the demanding conditions in coke, coal and sinter processing.

The IR-3000 moisture transmitter is MoistTech’s NIR (Near Infrared) online moisture sensor for instant, non-contact measurement of virtually any product and raw material in the harshest manufacturing environments.