In chemical plants, different chemicals are loaded and unloaded from trucks or rail cars to receiving or storage tanks. A plant may deal with multiple unloading stations; thus, fast and reliable interface detection is necessary for product identification and safe unloading operation. Combining an interface detection device with automatic controls can minimize transmix of products, reduce waste, reduce the filling/unloading times, decrease safety risks, reduce sampling and minimize operator errors.
Refractive index is a reliable method for identifying a chemical before unloading it into receiving tank. Vaisala K-PATENTS® Process Refractometer PR-43-G provides repeatable refractive index measurements with accuracy of nD +/-0.0002.
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