Atago PAL-72S Sodium Tungstate Refractometer

The PAL-72S is a digital handheld refractometer developed by Atago for rapid and accurate measurement of sodium tungstate (Na₂WO₄) solution concentration. With a measurement range of 0.0-10.0% and ±0.4% accuracy, it is suitable for process control in metal processing, textile, and chemistry laboratories.

The instrument delivers results in approximately 3 seconds using only 2-3 drops of sample, enabling rapid on-line or laboratory quality control. Automatic temperature compensation ensures consistent measurements across the 10.0-40.0°C operating range even when ambient temperature varies. IP65 protection rating allows safe use in humid or dusty industrial environments.

Powered by two AAA batteries, the instrument offers wireless operational convenience. Its compact design makes it a portable solution for field measurements.

Technical Specifications

Applications

• Corrosion inhibitor concentration control in metal processing operations
• Sodium tungstate ratio monitoring in textile mordant solutions
• Reactive concentration verification in chemistry laboratories