YSI IQ SensorNet 2020 XT Terminal - Manual (Page 90)

Operation System 2020 XT USB
4 - 12 ba76019e01 12/2012
4.3.2 Extended access control
If extended access control (without instrument block) is enabled, a
symbol for the currently enabled access authorization is displayed.
Crown: Administrator logged in, all functions allowed
Tool: User with authorization for maintenance activities logged in (e.g.
calibration)
Eye: Viewer without any authorization
The relevant symbol is displayed, depending on the currently enabled
user authorization. Functions that are not allowed are hidden in the
menu.
User or administrator
access
If authorization is required for a task, log-in with the password is
required. This can be done as follows:
 Open the menu, Display/Options / Change user rights.
A password query appears.
Enter the password with the arrow keys and confirm with OK.
The respective user rights are unlocked.
 Connect the electronic key to the USB interface
(if the administrator has unlocked this function)
The respective user rights are unlocked.
Protecting the system The following options to protect the system are available:
 Select the menu, Display/Options / Viewing only.
The system is protected.
 Remove the electronic key from the USB interface
 If no key is pressed for 10 minutes, the user or administrator is
automatically logged off and the system protection is automatically
activated.