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.
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