Teledyne 3000ZA - Trace oxygen analyzer - Manual (Page 49)

Trace Oxygen Analyzer Operation
Teledyne Analytical Instruments 37
If an alarm is tripped, the second line will change to show which
alarm it is:
0.0 ppm Anlz
AL—1
Note: If you log off the system using the logout function in the
system menu, you will now be required to re-enter the
password to gain access to Span, Zero, Alarm, and Range
functions.
4.3.4 Logout
The Logout function provides a convenient means of leaving the
analyzer in a password protected mode without having to shut the
instrument off. By entering Logout, you effectively log off the
instrument leaving the system protected against use until the password is
reentered. To log out, press the System button to enter the System
function.
TRAK/HLD Auto—Cal
PSWD Logout More
Use the __ arrow keys to position the blinking over the Logout
function, and press Enter to Log out. The screen will display the
message:
Protected Until
Password Reentered
4.3.5 System Self-Diagnostic Test
The Model 3000ZA has a built-in self-diagnostic testing routine.
Pre-programmed signals are sent through the power supply, output board
and sensor circuit. The return signal is analyzed, and at the end of the
test the status of each function is displayed on the screen, either as OK
or as a number between 1 and 3. (See System Self Diagnostic Test in
Chapter 5 for number code.)
The self diagnostics are run automatically by the analyzer
whenever the instrument is turned on, but the test can also be run by the
operator at any time. To initiate a self diagnostic test during operation:
Press the System button to start the System function.