Online analyzer for the determination of sodium in water

The Model NA6 Sodium Analyzer is an online analyzer for sodium measurement in ultrapure water production and monitoring, water/steam cycle applications, and power plants.

The instrument uses an ion selective electrode (ISE) sensitive to sodium ions in solution. The electrode response is proportional to the sodium concentration in the sample on a logarithmic scale.

• Measured parameter: Sodium ion, Na+ (ppb, ppm)
• Measuring range: Selectable full scale from 10 ppb to 10 ppm
• Lower detection limit: 0.01 ppb
• Accuracy: +/- 5% of reading or +/- 0.1 ppb at calibration temperature
• Analysis frequency: Continuous operation
• Calibration: Manual or automatic, 1-point or 2-point calibration
• Sample streams: Up to 4 sample streams, plus 2 additional streams for standard solutions
• Outputs: 4 x 4-20 mA outputs and Modbus RTU RS485

The integrated sequencer can switch up to four different sample channels. Two additional channels are reserved for standard solution tanks, making the analysis and calibration operations fully automated.