PROBE PROCESS REFRACTOMETER – Polaris™ PR53GP

Probe Process Refractometer – Polaris™ PR53GP

Product Overview

The Vaisala Polaris™ PR53GP is a probe-type process refractometer designed for accurate and reliable concentration measurement of liquids such as sugar (Brix), acids, alkalis, solvents, and hydrocarbons—directly in pipelines or tanks. With robust construction and high measurement stability, the PR53GP is well suited for industries including sugar refining, chemicals, oil & gas, and food & beverage.

Technical Specifications

• Refractive Index Range (nD): 1.32 – 1.54 (equivalent to 0 – 100 °Bx)

• Accuracy: ±0.00014 nD (±0.1 °Bx)

• Repeatability: ±0.00002 nD

• Resolution: ±0.000015 nD

• Response Time (T63): 10 seconds

• Process Temperature: –40°C to +150°C

• Maximum Process Pressure: 40 bar

• Wetted Materials: Stainless steel EN 1.4404 (AISI 316L), monocrystalline sapphire prism, PTFE seals

• Communication Interfaces: Analog 4–20 mA, Modbus RTU

• Protection Class: IP66/IP67, NEMA Type 4X

• Power Supply: 24 V DC (9–30 V DC), <1 W power consumption

Key Features

• Accurate Concentration Measurement: Based on optical refractive index principles; unaffected by bubbles, solid particles, or solution color.

• Extensive Concentration Curve Library: Includes over 500 concentration profiles for various applications, including sulfuric acid, sodium hydroxide, and more.

• Easy Integration: Compatible with the Vaisala Indigo520 transmitter and Insight PC software for flexible configuration and real-time monitoring.

• Robust Design: Withstands high temperature and pressure, ensuring long-term reliability in tough industrial environments.

Benefits

• Safe Operation: No moving parts, which reduces maintenance needs and prevents unnecessary downtime.

• Process Optimization: Real-time data enables efficient control and adjustment of production processes.

• Cost Efficiency: Durable, low-maintenance design saves on operational and maintenance expenses.

Applications

• Sugar Industry: Monitoring Brix/concentration levels during crystallization and processing.

• Chemical and Oil & Gas Industries: Accurate measurement of chemical solution concentrations in production and refining.

• Food & Beverage Industry: Concentration control in product formulation and quality assurance.

• Pharmaceutical Industry: Ensures solution quality and consistency during drug manufacturing.

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Reference link: https://www.vaisala.com/en/industrial-measurements/products/liquid-concentration/vaisala-Polaris-pr53gp-process-refractometer