Hach Lange DR 3900 - Assign Operator Security Level

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Standard programs
4. Press Security List to access various functions with security
level 1 or 2.
5. Select the required function and press Setup.
6. Select the required security level (two keys, one key or off)
and confirm using OK.
7. Confirm the Security List using OK to return to the
"Security" menu.
8. Press On to activate the new settings of the security list.
9. Press OK to return to the "Instrument Setup" menu.
Note: The alphanumeric keypad for entering the password appears
when a user tries to reach a locked setting.
5.2.4.1 Assign operator security level
Every operator with an operator ID can be assigned a security
level. This is connected to the operator password. Setup must be
coordinated with the security administrator and the operator.