Sartorius AG
Group: Sartorius Group

Process refractometer
PMD700 Sartorius AG

  • process refractometer PMD700 Sartorius AG
Sartorius PMD700 process refractometers are designed for process analysis and control of liquid and pasty process streams.

Application Areas
* Concentration measurement
* Dissolving processes
* Concentration processes
* Crystallization
* Product identification

Principle of Operation

The refractive index is determined with high resolution using a CCD detector and the concentration is calculated using the installed scales. This principle of operation is based on the measurement of the reflection of light, so that the concentration of a substance can be easily determined, both in colored and dark solutions and even with particles in a process stream. The prism-embedded temperature sensor (PES) is positioned directly at the process stream and point of measurement, providing optimal temperature compensation and extremely accurate measurement. A prism with a very high degree of hardness ensures process robustness, as well as Clean-In-Place practice and pipe cleaning with process pigs. The stainless steel housing has an IP65 protection class and allows for the process environment to be thoroughly cleaned.


* Fast, accurate, online product identification and determination of concentration and purity in liquid and pasty process streams
* Field-proven, reliable technology for a broad range of applications
* Proprietary technologies for extremely accurate measurement and optimal process control



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