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Troubleshooting and Service Teledyne API T802 Paramagnetic O
2
Analyzer Operation Manual
198
To view or clear the various warning 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 RANGE
function will be displayed in
the analyzer’s main
MESSAGE FIELD.
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 O2=XXX.XX
TEST CAL MSG CLR SETUP
SAMPLE RANGE=100 % O2=XXX.XX
<TST TST> CAL MSG SETUP
SAMPLE WARNING O2=XXX.XX
TEST CAL MSG CLR SETUP
SAMPLE SYSTEM RESET O2=XXX.XX
TEST CAL MSG CLR SETUP
MSG returns the active
warnings to the message
field.
SAMPLE RANGE=100.00 % O2=XXX.XX
<TST TST> CAL SETUP
Figure 11-1: Viewing and Clearing Warning Messages
Table 11-1: Warning Messages - Indicated Failures
WARNING
MESSAGE
FAULT CONDITION POSSIBLE CAUSES
O2 CELL TEMP
WARN
The O
2
cell temp is controlled at 50
2
°
C.
Bad heater
Bad temperature sensor
Bad relay controlling the heater
Entire relay board is malfunctioning
I
2
C bus malfunction
BOX TEMP
WARNING
Box Temp is
< 8
°
C or > 50
°
C.
NOTE: Box temperature typically runs ~7
o
c warmer than
ambient temperature.
Poor/blocked ventilation to the analyzer.
Stopped exhaust-fan
Ambient temperature outside of specified range
CANNOT DYN
SPAN
Dynamic Span operation failed
Measured concentration value is too high or low.
Concentration slope value to high or too low
CANNOT DYN
ZERO
Dynamic Zero operation failed
Measured concentration value is too high.
Concentration offset value to high.
CONFIG
INITIALIZED
Configuration and Calibration data
reset to original Factory state.
Failed disk on module
User erased data
DATA INITIALIZED
Data Storage in DAS was erased
Failed Disk on Module
User cleared data
REAR BOARD NOT
DET
Motherboard not detected on power
up.
Warning only appears on serial I/O COM port(s)
Front panel display will be frozen, blank or will not respond.
Massive failure of mother board
07275B DCN6418