Hach Portable Spectrophotometer DR 2800, Руководство пользователя

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Standard Operations
5.4.4 Set the dilution factor
The Dilution Factor function is used to calculate the original
concentration of a sample that has been diluted by a known ratio.
For example, dilution factor can bring the analyzed concentration
within the test range.
1. Press Options > More… > Dilution Factor .
The number entered at the dilution factor prompt will be
multiplied by the result to compensate for the adjustment.
For example, if the sample has been diluted by a factor of 2,
enter 2. The default setting of the dilution factor is turned off.
2. Press OK to confirm. Press again OK .
3. Press Return to return to the result display.
4. Confirm ’Store present reading again?’ to save the current
measured value if necessary.
Note: When a dilution is in effect, the dilution icon will appear on the
display.
Note: If using undiluted samples, set the dilution factor off again.
5.4.5 Run a standard adjust
The Standard Adjust function allows the calibration curve for a
stored program to be adjusted based on analysis of a known
standard solution. The Accuracy Check section of written
procedures often suggests a standard solution concentration for
this purpose.