Teledyne 3000ZA - Trace oxygen analyzer - Manual (Page 46)

Operation 3000ZA
Teledyne Analytical Instruments 34
Zero) OFF/ON field. Use __ arrows to set the OFF/ON field to ON. You
can now turn these fields ON because there is a nonzero span interval
defined.
4.3.3 Password Protection
If a password is assigned, then setting the following system
parameters can be done only after the password is entered: span and zero
settings, alarm setpoints, analysis range definitions, switching between
autoranging and manual override, setting up an auto-cal, and assigning a
new password. However, the instrument can still be used for analysis or
for initiating a self-test without entering the password.
If you have decided not to employ password security, use the
default password TETAI. This password will be displayed automatically
by the microprocessor. The operator just presses the Enter key to be
allowed total access to the instrument’s features.
Note: If you use password security, it is advisable to keep a copy
of the password in a separate, safe location.
4.3.3.1 E
NTERING THE
P
ASSWORD
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 TETAI password for you.
Press System to enter the System mode.
TRAK/HLD Auto—Cal
PSWD Logout More
Use the __ arrow keys to scroll the blinking over to PSWD , and
press Enter to select the password function. Either the default TETAI
password or AAAAA place holders for an existing password will appear
on screen depending on whether or not a password has been previously
installed.
T E T A I
Enter PWD
—or—
A A A A A
Enter PWD