Set The Dilution Factor; Run A Standard Adjust - Hach Portable Spectrophotometer DR 2800 User Manual

Standard Operations

5.4.4 Set the dilution factor

5.4.5 Run a standard adjust

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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.
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.