Teledyne Trace Oxygen Analyzer 3000TA - Manual (Page 14)

Quickstart Guide Trace Oxygen Analyzer
Teledyne Analytical Instruments 14
TRAK/HLD Auto—Cal
PSWD Logout More
•
Use the ◄► arrow keys to scroll the blinking over to PSWD ,
•
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
•
If you are not using password protection, press Enter to accept TETAI as the default
password. If a password has been previously installed, enter the password using the
◄► arrow keys to scroll back and forth between letters, and the ▲▼ arrow keys to
change the letters to the proper password.
•
Press Enter to enter the password.
Change Password?
<ENT>=Yes <ESC>=No
•
Press Escape.
Calibration of the Analyzer
The analyzer is calibrated using zero and span gases. This Quickstart Guide describes both
manual and auto mode calibration. You can s switch between the two any time using the
procedures described below.
Any suitable oxygen-free gas can be used for zero gas as long as it is known to be oxygen
free and does not react adversely with the sample system. For span gas, use a known gas
containing oxygen in the range of 70-90% of full scale on the range of interest.
Zero Calibration
Make sure an appropriate zero gas is connected to the sample port. Adjust the gas pressure
until the flowrate as indicated on the front panel flowmeter settles between 0.1 and 2.4 SLPM
(0.2 –5 SCFH).