High Pressure 10 bar/142 PSIG Conductivity Sensor with 150°C/302°F Temperature Range and 7 bar/100 PSIG Rating for Water Quality Monitoring

Conductivity serves as a cost-effective, low-maintenance indicator of water quality. High-quality water with minimal contaminants exhibits low conductivity. Compared to pH measurement, conductivity requires far less maintenance and minimal calibration. Common applications include boiler feedwater, reverse osmosis (RO), and demineralizer systems.

Conductivity measurements can correlate to percentage concentration values for solutions like acids or bases, as conductivity increases with ion concentration. However, this correlation is only valid for single-chemical solutions, not mixtures.

Two primary sensor types measure conductivity:

• Contacting Sensors: Measure conductivity by applying alternating current to immersed electrodes and measuring resulting voltage
• Inductive (Toroidal) Sensors: Electrodeless measurement method

Several factors can influence conductivity measurement accuracy:

• Polarization: Affects electrode performance
• Contamination: Deposits on electrode surfaces cause lower readings (4-pole cells prevent this)
• Cable Resistance: Can introduce measurement errors
• Temperature: Conductivity increases with temperature