Hach-Lange DR 2800 eco - Manual (Page 49)

47
Standard Operations
5.4.3 Setting the Dilution Factor
You can use the Dilution Factor function to calculate the original
concentration of a sample that has been diluted by a known ratio
(for example to bring the analyzed concentration within the test
range).
1. Press Options, More… and then the 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 1,
corresponding to no dilution.
2. Press OK to confirm. Press again OK.
Note: When a dilution is in effect, the dilution icon will appear on the
display.
Note: If you are using undiluted samples, set the dilution factor to 1 again.
5.4.4 Running a Standard Adjust
You must read a standard before setting Standard Adjust to On.
1. Follow the entire procedure, using a known standard for your
sample.
2. After reading the concentration, press Options, More... and
then Standard Adjust.
3. If Standard Adjust is set to Off, turn it On.
The Current Reading will show the concentration. The box on
the right will show the default standard value for the test, as
mentioned in the procedure.
4. If your measurement used a standard concentration that is
different from the one displayed in the box, press the box on the
right to enter a different standard value and enter the new
value. Press OK to confirm.