YSI IQ SensorNet 2020 XT Terminal - Manual (Page 126)

Settings/setup System 2020 XT USB
5 - 6 ba76019e01 12/2012
5.4.1 Simple access control (Unlock/lock settings)
Use the simple access control
 where the requirements on the security of the system are low or
 if old and new terminals or controllers are to be used together in the
IQ S ENSOR N ET .
Password protection can be switched on or off with the Unlock/lock
settings function. The current setting is displayed in the safety field. The
lock symbol is open or closed. Before any change of the release
setting, a password query appears. The password must also be
entered per SMS for remote access (with operational GSM modem).
Authorization levels The current authorization level is shown on the display with the
following symbols.
Note
If the closed lock symbol
z
is visible on the display, changes to the
system settings are only possible after entering a password.
Switching on the simple
access control
Simple access
control Symbol Authorization
Settings are
unlocked
(Access control
switched off) A All functions in the system are
accessible for all users
Settings are locked z Access to the system settings is
only possible with a password
Unprotected functions
 Calibration
 Data backup
 View measured values
1 Using <S>, open the Settings menu.
2 Using <
> and <OK>, select and confirm the menu
item, System settings -> Access controlUnlock/lock settings.
The Unlock/lock settings dialog window opens.