Instruction Manual

Trace Oxygen Analyzer Operation 4
4-9
Teledyne Analytical Instruments
will immediately switch to the Analyze screen, and you now have access to
all instrument functions.
If all alarms are defeated, the Analyze screen appears as:
0.0 ppm Anlz
Range: 0 — 100
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 pass-
word to gain access to Span, Zero, Alarm, and Range func-
tions.
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 func-
tion, 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 3000TB 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.)