Hach-Lange DR 3900 User Manual - Manual (Page 27)

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Standard programs
5.2 Instrument Setup
1. Select Instrument Setup in the Main Menu.
A selection of functions appears in order to configure the
functions of the instrument.
5.2.1 Operator ID
Use this option to enter up to 30 sets of operator initials (up to ten
characters each) into the instrument. This feature helps record
which operator measured each sample.
1. Press Operator ID in "Instrument Setup".
2. Press Options>New to enter a new operator ID.
Note: If no operator ID has yet been entered, the alphanumeric
keyboard is immediately displayed.
3. Use the alphanumeric keypad to enter a new operator ID.
4. Press OK to confirm the entry.
5. Choose an icon for the operator ID using the Left Arrow and
Right Arrow.
6. Press Operator Password to protect the operator ID with a
password.
7. Use the alphanumeric keyboard to enter an operator
password.
8. Press OK to confirm the entry.
9. Press Cancel to delete the complete entry for the operator
ID.
Press Back to reach to the input screen for operator ID.
Press OK to confirm the entry. The following screen is
displayed.