CHEMIACAL & SEMICONDUCTOR PROCESS REFRACTOMETER – Polaris™ PR53M

Chemical & Semiconductor Process Refractometer – Polaris™ PR53M

Product Overview

The Vaisala Polaris™ PR53M is a digital inline refractometer specifically engineered for accurately measuring the concentration of highly corrosive chemicals such as hydrochloric acid (HCl), sodium hydroxide (NaOH), sodium chloride (NaCl), sulfuric acid (H₂SO₄), and hydrofluoric acid (HF). Featuring an ultra-pure PTFE body and zero metal-wetted parts, the PR53M is ideal for demanding chemical and semiconductor process environments.

Technical Specifications

• Refractive Index Range (nD): 1.32 – 1.54

• Accuracy: ±0.00014 nD (equivalent to ±0.1 °Bx)

• Repeatability: ±0.00002 nD

• Resolution: ±0.000015 nD

• Response Time (T63): 10 seconds

• Process Temperature: -10°C to +130°C

• Maximum Process Pressure: 10 bar

• Wetted Materials: Ultra-pure PTFE body, monocrystalline sapphire prism, Kalrez W240UP seals

• Communication: Analog 4–20 mA, Modbus RTU

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

Key Features

• Superior Chemical Resistance: Fully non-metallic wetted parts make it compatible with highly aggressive chemicals.

• Reliable and Accurate Measurement: Based on optical refractive index, unaffected by gas bubbles, particles, or flow variations.

• Easy Integration: Compatible with Vaisala Indigo520 transmitter and Insight PC software for flexible setup and monitoring.

• Minimal Maintenance: No moving parts reduce downtime and service requirements.

Benefits

• Safety and Efficiency: Ensures safe monitoring in harsh chemical environments, reducing risk to personnel.

• Process Optimization: Real-time data enables precise control and optimization of production processes.

• Cost Savings: Durable and low-maintenance design minimizes operational and replacement costs.

Applications

• Chemical Industry: Real-time measurement of acid and caustic concentrations in production lines.

• Semiconductor Industry: Monitoring chemical concentrations during microchip manufacturing.

• Metallurgy: Controlling corrosive solutions used in metal processing operations.