DA7200 NIR Analyzer: Instant Water Activity*
The DA7200 measures water activity by shining a bright light on a sample and collecting the reflected spectrum of light. Reflected light from a sample is characteristic of the composition of that sample. In other words, a sample with a water activity of 0.300 will reflect light differently than a sample with a water activity of 0.320.
The DA7200 measures this reflected light and converts it to water activity values using specialized software. Since there is no measurement of the air above the sample, practically no equilibration time is needed. In addition, because the method of detection travels at the speed of light along a fiber-optic cable, the time for a water activity measurement is almost instantaneous.
The DA7200 requires a product specific calibration. Once programmed, the water activity of your product is measured with the touch of a button. No equilibration is necessary.
*For sale in the USA only.