Hach-Lange DR 3800 User Manual - Manual (Page 47)

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Standard Operations
1. Follow the entire procedure, using a known standard for the
sample.
2. After reading the concentration, press
Options>More>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 the 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.
5. Press Adjust to enable the Standard Adjust. The Standard
Adjust icon will appear.
Note: The adjustment must be within certain limits, which vary with
each program. The allowable percentage is shown after "Adjustment“.
Note: When a Standard Adjust is in effect, the Standard Adjust icon
will appear on the display.
Note: For further information about the Help Guide (Information icon),
see
Appendix B on page 143 .
5.4.7 Set the chemical form
Some Stored Programs allow a variety of chemical forms to
be selected.
Press the unit (e.g. mg/L) or the chemical representation of the
evaluation form (e.g. Al
3+ ). A list of available evaluation forms is
displayed. Select the required form by pressing the corresponding
entry in the list.
Note: To exit from the program, the evaluation form reverts to the standard
setting.
An alternative way of changing the standard setting: