Digital refractometer PR21S

processin-linewith touchscreen

The inline process refractometer PR21S is installed in pipelines at production facilities in order to control the concentration of mixing and fermentation processes. Thanks to their standardised connections, these measurement devices can be easily mounted in pipelines. The measurement chamber is made of stainless steel, the measurement prism of scratch-resistant and particularly chemical-resistant sapphire. It is designed to prevent solids from sticking. The PR21S is used in the chemical and petrochemical industries, in automotive and aircraft manufacturing as well as in the food, sugar and beverage industries and for waste water monitoring. Basic function Measurement in refractive index, %Brix or a user-definable scale Automatic temperature compensation (%Brix and freely definable for customer-specific products) Integrated sensor for temperature monitoring Stainless steel measuring chamber and sample prism, made of scratch-resistant and chemical-resistant sapphire Manual cleaning or via customer process cleaning, CIP capable Suitable for Process temperatures up to 60°C and relative pressures up to 9 bar Simple connection to the process control system or PLC via serial or two-part potential-free current interface (0/4-20 mA) Interfaces: RS-232; additional RS-232 for display, 2x analog 0(4)-20 mA; relay input, 2x relay output Specification Measurement range 1) - nD 1.3200-1.5200 0-90 %Brix Measurement accuracy 2) - nD ±0.0002 ±0.2 %Brix Resolution - nD 0.0001 0.1 %Brix Measurement period - Approx. 10 seconds Wavelength - 589 nm Process pressure (relative) - 0-9 bar Process temperature - 10-60 °C Ambient temperature - 0-40 °C