Figure 11-1: Viewing And Clearing Warning Messages; Table 11-1: Warning Messages - Teledyne 400E Instruction Manual

Model 400E Ozone Analyzer
Instruction Manual
To View or Clear the various warning messages press:
TEST deactivates Warning
Messages until New warning(s)
are activated

Figure 11-1: Viewing and Clearing Warning Messages

Warning Message
PHOTO TEMP
WARNING
BOX TEMP WARNING
CANNOT DYN SPAN
CANNOT DYN ZERO
CONFIG INITIALIZED
(table continued)
P/N 04316 Rev: B
SAMPLE SYSTEM RESET
TEST
CAL
SAMPLE RANGE=500 PPB
< TST TST > CAL
SAMPLE SYSTEM RESET
< TST TST > CAL
Make SURE warning
messages are NOT due to
LEGITIMATE PROBLEMS..
A failure of the analyzer's CPU or Mother Board can result in
any or ALL of the following messages.

Table 11-1: Warning Messages

Fault Condition
The optical bench
temperature lamp temp
is ≥ 51°C.
Box Temp is < 5°C
or > 48°C.
Dynamic Span
operation failed.
Dynamic Zero operation
failed.
Configuration and
Calibration data reset to
original Factory state.
TROUBLESHOOTING & REPAIR PROCEDURES
O3 = XXX.X
MSG CLR SETUP
O3 = XXX.X
MSG CLR SETUP
O3 = XXX.X
MSG CLR SETUP
NOTE
Possible Causes
§ Bench lamp heater
§ Bench lamp temperature sensor
§ Relay controlling the bench heater
§ Entire Relay Board
2
§ I C Bus
§ "Hot" Lamp
Box Temperature typ ically runs ~7°C warmer than
ambient temperature.
§ Poor/blocked ventilation to the analyzer
§ Stopped Exhaust-Fan
§ Ambient Temperature outside of specified range
§ Measured concentration value is too high or low
§ Concentration Slope value to high or too low
§ Measured concentration value is too high
§ Concentration Offset value to high
§ Failed Disk on Chip
§ User erased data
MSG activates Warning
Messages.
<TST TST> keys replaced with
TEST key
Press CLR to clear the
message currently being
Displayed.
If more than one warning is
active the next message will
take its place
Once the last warning has been
cleared, the analyzer returns to
SAMPLE Mode
245