Hanna Instruments-98197 uses the Hanna Instruments-763123 four-ring probe with a threaded connection that is screwed into a stainless steel body flow cell. The flow cell is then connected to a water source to more accurately determine the conductivity or resistivity without exposure to air. Hi-98197 is an ideal meter for monitoring the efficiency of a mixed bed resin or equivalent system that produces high purity water of 18.2 MΩ•cm at 25°C.

Designed for water professionals

The Hanna Instruments-763123 is used in conjunction with the Hanna Instruments-605453 stainless steel body flow cell which is connected to a water source to more accurately determine the conductivity or resistivity without exposure to air.

High purity water used in power generation, semi-conductor manufacturing, and other industries can be difficult to measure due to the ability of carbon dioxide (CO₂) to diffuse into water and form carbonic acid (H₂CO₃).

Carbonic acid quickly dissociates into hydrogen ions (H+) and bicarbonate ions (HCO^-₃). These ions will increase the conductivity and decrease the resistivity of the water. In order to measure high purity water accurately, it is necessary to perform a continuous flow measurement.