What is the recommended conductivity range of the 8362sc pH system?

Document ID

Document ID TE7576

Published Date

Published Date 01/05/2017
Question
What is the recommended conductivity range of the 8362sc pH system?
Summary
Recommended conductivity range of 8362sc Ultra Pure pH system.
Answer
Ultra pure water is producing H+ and OH- ions (H2O = H+ + OH-). This equilibrium between H+ and OH- ions gives the source of noise for conductivity measurement in Ultra Pure water. This H+ and OH- ions gives the lowest limit of conductivity in Ultra Pure water and this limit is 0.055 µS/cm at 25°C. This means that the conductivity of Ultra Pure water at 25°C cannot be below this value of 0.055 µS/cm.
 
For our 8362 pH probe, the minimum is 0.055 µS/cm and the maximum is 100 µS/cm.