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12.2 Calibration check of conductivity in buffer solutions
To check the calibration of the sensor in buffer solutions, the sensor is placed in a container of the buffer
solution. Ensure that the sensor tips are centered in the container away from the edges and the bottom
of the container. The conductivity values displayed can vary depending on the position of the
conductivity sensor in the container of buffer solution.
Perform the calibration check as follows:
Shut the isolation valves to the controller plumbing assembly.
Place the Conductivity sensor in the buffer solutions.
Verify calibrations in at least two buffer solutions.
Re-install the sensor into the plumbing. Ensure locking ring is locked. Restore flow to
plumbing assembly
12.3 Conductivity vs. ppm
The unit measures the conductivity of the water. The ppm of the water may be measured instead of
conductivity. If ppm is measured, use the following chart for an approximation of the conductivity level
and calibrate to the conductivity level that is closest to the ppm level that is measured. Remember this is
just an approximation because the ions that make up the conductivity may be different than the particles
that make up the ppm reading.
Conductivity vs. PPM Table
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