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3 Operation/Control Unit Model 5000B
3-6 Part I
Teledyne Analytical Instruments
3.3.2 Password Protection
Before a unique password is assigned, the system assigns TAI by default.
This password will be displayed automatically. The operator just presses the
Enter key to be allowed total access to the instrument’s features.
If a password is assigned, then setting the following system parameters can
be done only after the password is entered: alarm setpoints, assigning a new
password, range/application selections, and curve algorithm linearization.
(APPLICATION and ALGORITHM are covered in the programming section.)
However, the instrument can still be used for analysis or for initiating a self-test
without entering the password. To defeat security the password must be
changed back to TAI.
NOTE: If you use password security, it is advisable to keep a copy of the
password in a separate, safe location.
3.3.2.1 Entering the Password
To install a new password or change a previously installed password,
you must key in and ENTER the old password first. If the default password
is in effect, pressing the ENTER button will enter the default TAI password
for you.
Press System to enter the System mode.
DIG_FILT AUTO—CAL
PWD LOGOUT MORE
Use the < > arrow keys to scroll the blinking over to PWD, and press
Enter to select the password function. Either the default TAI password or
AAA place holders for an existing password will appear on screen depend-
ing on whether or not a password has been previously installed.
Enter password:
T A I
or
Enter password:
A A A
The screen prompts you to enter the current password. If you are not
using password protection, press Enter to accept TAI as the default pass-
word. If a password has been previously installed, enter the password using
the < > arrow keys to scroll back and forth between letters, and the DÑ