4 Calibration
16
4.2
Notes Regarding Calibration
Perform the calibration in the order of “Common zero calibration," "Common span
calibration,” and “TURB Span calibration.”
If the calibration coefficient exceeds the specified range during the calibration, an error
occurs and the calibration value is not updated. The previous calibration value remains.
Use distilled water for the common zero calibration solution. If a solution other than
distilled water is used, the measurement error becomes larger in the low concentration
range (0.1 Abs to 0.5 Abs).
If the ion-exchanged water is used, the measurement error also becomes larger.
Whenever diluting the span calibration solution, make sure to dilute by adding distilled
water.
When disposing of the common span calibration solution, follow the rules and regulations
in your country/area.
Store the common span calibration solution ampoule in a dark and cold place.
Use the common span calibration solution ampoule immediately after opening.
Do not ingest the common span calibration solution ampoule or its contents.
If the common span calibration solution comes into contact with clothes, the clothes may
be stained.
Do not reuse the calibration solution. If the solution is altered, an accurate calibration may
not be obtained.
Prepare the span calibration solution by following the description in this manual.
