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Process refractometer

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The K-Patents General type process refractometer PR-43-GP system consists of a probe refractometer and a graphical user interface. The refractometer is a stand-alone device capable of operating independently. It has a measurement range of 0 to 100 % and it provides an Ethernet or 4–20 mA output signal proportional to the temperature-compensated concentration value for real-time process control. Different user interface options range from a rugged, multichannel, industrial computer to a compact light-weight and a web-based version, and allow the user to select the most preferred way to access and use the refractometer measurement and diagnostics data.

The PR-43-GP refractometer is an ideal all-round instrument for measuring the concentrations of a wide range of chemicals and other liquids in industrial applications. K-Patents Process refractometer PR-43-G is designed for harsh environments that can be corrosive, abrasive, subject to extreme temperatures, pressures, vibration or contamination, humidity and dust, or any combinations of these factors. It is installed in the main processing line, bypass line or vessel either directly with Flange or Sandvik L coupling process connection, or via a large variety of cost-effective and easy to mount flow cell options. The user interface of the refractometer can be installed locally in the field, remotely in the control room or in both locations by connecting several user interfaces in a network.

  • Universal calibration of each sensor: All sensors are freely interchangeable.
  • Full range, nD = 1.3200...1.5300 corresponds to hot water...100 % by weight.
  • Completely digital system: particles and bubbles do not affect operation or accuracy.
  • Patented CORE-optics: no drift, no re-calibration, no mechanical adjustments.
  • Special wetted parts materials such as AISI 316L stainless steel, Alloy 20, Hastelloy C276/ASTM C276, Nickel 200/201, Titanium GR2/ATM B348 GR2 available.
  • Protection class IP67/Type 4X (for outdoor use).
  • Prism wash option as well as hazardous and intrinsic safe approvals for hazardous area installations.
  • Process temperature range: -40°C...150°C.
  • PR-43-GP Refractometer has a built-in web server with an instrument homepage. The homepage allows for configuring, monitoring, verifying and diagnosing the refractometer via an Ethernet connection.
  • Fast process temperature measurement by built-in Pt1000 and automatic temperature compensation.
  • Easy on-site instrument verification within users’ own quality assurance system and standard Refractive Index liquids.
Product info
Application notes