Yokogawa's pH and conductivity sensors include a temperature sensor to allow for temperature compensation. The pH and conductivity sensors have a relatively large temperature mass and respond slowly to the changes in the process temperature. This is fine for temperature compensation or diagnostic uses but not for process control of the temperature. Process temperature sensors have a much lower mass and respond much quicker to temperature changes. Use those for process control, not the temperature sensor built into the pH or Conductivity sensor.
The FLEXA™ series analyzers are used for continuous on-line measurements in industrial installations. With an option for single or dual sensor measurement, they are the most flexible two-wire analyzer available.
The PH450 pH and ORP analyzer is a multivariable analyzer that combines pH with temperature and ORP (Redox) measurement, which can be utilized through different output functions: two mA current outputs, four independent SPDT contact outputs and HART.
Liquid analyzers are used for monitoring process chemistry including water quality, providing process optimization and control.
pH and ORP meters, analyzers and transmitters are used for continuous process monitoring of pH and ORP to ensure water/product quality, monitor effluent discharge, batch neutralization, pulp stock, scrubbers, cooling towers, chemical, water/wastewater treatment and many other applications.
Process analyzers are used to determine the chemical composition or physical properties of substances involved in industrial processes.