Vaisala K-PATENTS-Process Refractometer PR-43 G Series

Vaisala K-PATENTS general type process refractometer PR-43-G is made to last and is an ideal all-round instrument for measuring the liquid concentration and density in a wide range of industrial applications. The PR-43-G masters highly accurate measuring technology in demanding process control applications where conventional density equipment may struggle due to undissolved solids or bubbles in the process stream.

The refractometer system consists of a compact or probe refractometer and a graphical user interface. The refractometer is a stand-alone device capable of operating independently or together with a physical user interface. 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 lightweight and a web-based version which allow the user to select the most preferred way to access and use the refractometer measurement and diagnostics data.

The refractometer built-in web server and instrument homepage enable remote monitoring, configuring and diagnostics via an Ethernet connection. Every PR-43-G Refractometer also provides an mA output signal for control purposes. Special wetted parts materials and hazardous area certifications are available.

The measurement performance is unsurpassed in harsh process conditions with high contents of solids, particles, bubbles, pulsating flows or abrasive and corrosive substances.
 

Features

• Identical refractometer calibration. For this reason, each refractometer is freely interchangeable with each other without any optical recalibration or parameter changes.
• Full range, nD = 1.3200...1.5300 corresponds to hot water...100 % by weight. Optional ranges: nD = 1.260…1.470; nD = 1.410...1.620; nD = 1.520...1.730
• Process temperature range for compact type PR-43-GC: -40°C...130°C (-40°F...266°F), for probe type PR-43-GP: -40°C...150°C (-40°F...302°F).
• Completely digital system: particles and bubbles do not affect operation or accuracy
• CORE-optics: no drift, no re-calibration, no mechanical adjustments required
• 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
• Increased safety (Ex e) certification for hazardous area installations
• Protection class IP67/Type 4X (for outdoor use)
• 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.
• Simple and easy calibration verification using standard refractive index liquids and a built-in verification procedure at customer site.