150
AO2000
CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
Viewing menu items
All users can view all menu items, regardless of password level, without en-
tering a password.
Changing menu items
All users can make changes to password level 0 menu items without enter-
ing a password.
Password level 1, 2 and 3 menu items can only be changed if the user belongs
to the group authorized for that level and after the user’s password has
been entered.
Note: Entering the main menu and thus switching to the menu mode can be
password protected (see the "Inhibit operation" (see page 186) section.
Change privilege
After entering the password the user is authorized to change any menu
items on all password levels accessible at the user's level.
Duration of the change privilege
The change privilege remains in effect until:
•
The analyzer automatically switches to measurement mode if the user
has not pressed a key for more than about 5 minutes (time out).
•
Or the user presses the "Meas" key twice in succession.
The change privilege remains in effect if the user presses the "Meas" key only
once to return to measurement mode. This is indicated by the "Password
active" status message.
In this manner the user does not have to re-enter a password to change a
menu item if he or she returns to the menu mode within approximately 5
minutes.
Note: The change privilege thus refers to a temporary authorization to change
menu items. In contrast, the access privilege refers to a fundamental and
configurable authorization to change menu items at certain password levels.
Changing the password
Changing the password is described in the "Gas analyzer configuration" (see
page 185) section.
