The reference solution becomes diluted over time by the process solution, resulting in more drift and more frequent calibration to maintain accuracy. To avoid drops in performance, we recommend replacing the reference solution every 1-2 months. Ideal replacement frequency depends on the application and must be determined empirically through calibration checks. Applications with high flow rate, temperature, pressure, alkalinity, or acidity dilute the reference faster and may require more frequent replacement.
To view these instructions, simply click the link to the right.
