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Teledyne API – Model T400 Photometric Ozone Analyzer Getting Started
63
3.4. STARTUP, FUNCTIONAL CHECKS, AND INITIAL
CALIBRATION
If you are unfamiliar with the T400 theory of operation, we recommend that you read
Section 13
For informat
ion on navigating the analyzer’s software menus, see the menu trees
described in Appendix A.1.
3.4.1. START UP
After the electrical and pneumatic connections are made, an initial functional check is in
order. Turn on the instrument. The pump and exhaust fan should start immediately. The
display will show a momentary splash screen of the Teledyne API logo and other
information during the initialization process while the CPU loads the operating system,
the firmware and the configuration data.
The analyzer should automatically switch to Sample Mode after completing the boot-up
sequence and start monitoring O
3
gas. However, there is an approximately one hour
warm-up period before reliable gas measurements can be taken. During the warm-up
period, the front panel display may show messages in the Parameters field.
3.4.2. WARNING MESSAGES
Because internal temperatures and other conditions may be outside be specified limits
during the analyzer’s warm-up period, the software will suppress most warning
conditions for 30 minutes after power up. If warning messages persist after the 30
minutes warm up period is over, investigate their cause using the troubleshooting
guidelines in Section 12 of this manual.
To view and clear w
arning messages, press:
Suppresses the
warning messages
Press CLR to clear the current
message.
If more than one warning is
active, the next message will take
its place.
Once the last warning has
been cleared, the analyzer will
automatically switch to
SAMPLE mode
NOTE:
If a warning message persists after
several attempts to clear it, the message
may indicate a real problem and not an
artifact of the warm-up period
SAMPLE SYSTEM RESET
TEST CAL MSG CLR SETUP
SAMPLE SYSTEM RESET
TEST CAL MSG CLR SETUP
SAMPLE SYSTEM RESET
TEST CAL MSG CLR SETUP
SYSTEM SYSTEM RESET
TEST CLR SETUP
MSG returns the active
warnings to the message
field.
STANDBY RANGE=500.0 PPB O3=XXXX
TEST CAL MSG SETUP
Table 3-8 lists brief descriptions of the warning messages that may occur during start up.
06870C DCN6332