YSI IQ SensorNet 2020 XT Terminal - Manual (Page 89)

System 2020 XT USB Operation
4 - 11 ba76019e01 12/2012
4.3 Access to the IQ S ENSOR N ET with enabled access
control
Note
Access control is switched off in the delivery condition.
No log-in to the IQ S
ENSOR N ET is required.
As soon as any access control is enabled, access to the
IQ S
ENSOR N ET is protected completely or partly. Access is only
possible after a password has been entered.
Access to the system (entry of a password) is different for the various
types of access control.
 Simple access control:
the lock symbol (open, closed) is visible
(see section 4.3.1)
 Extended access control:
one of the following symbols is visible: Crown, tool, eye
(see section 4.3.2)
 Extended access control with instrument block:
only the IQ S ENSOR N ET logo is visible (see section 4.3.3)
4.3.1 Simple access control
If simple access control is enabled and the system settings are locked,
a lock symbol appears on the display. If a closed lock is displayed, the
IQ S
ENSOR N ET informs you that settings cannot be changed in the
protected mode before you can adopt a changed system setting.
Releasing the system
settings
You can unlock the system settings as follows:
 Enter the password for simple access control with the arrow keys in
the menu, Settings / Unlock/lock settings / Unlock settings.
The system settings are unlocked.
 Connect the electronic key to the USB interface
(if the administrator has unlocked this function)
Locking the system
settings
You can lock the system settings as follows:
 Enter the password for simple access control with the arrow keys in
the menu, Settings / Unlock/lock settings / Lock settings.
The system settings are locked.
 Remove the electronic key from the USB interface
 If no key is pressed for 10 minutes the system settings are
automatically locked.