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Model 300E Carbon Monoxide Analyzer
Instruction Manual
Operating Instructions
P/N 04288 REV: A
53
6.2.1.
Warning Message Display
The most common and serious instrument failures will activate Warning Messages
that are displayed on the analyzer’s Front Panel. These are:
Message Meaning
SYSTEM RESET
The computer has rebooted.
SOURCE
The IR source may be faulty.
SYNC
The instrument is not properly tracking the rotation of the Gas Filter
Correlation wheel.
BENCH TEMP
Optical bench temperature is outside the specified limits.
WHEEL TEMP
The Gas Filter Correlation wheel temperature is outside the specified
limits.
BOX TEMP
The temperature inside the M300E chassis is outside the specified
limits.
SAMPLE TEMP
The temperature of the sample gas is outside the specified limits.
SAMPLE FLOW
The flow rate of the sample gas is outside the specified limits.
SAMPLE PRES
The pressure of the sample gas is outside the specified limits.
See Section 11.1.1 for more information on using these messages to troubleshoot
problems.
To View and Clear the various warning messages press:
SAMPLE
WHEEL TEMP WARNING
CO = XX.XX
TEST
CAL
MSG
CLR
SETUP
Make
SURE
warning
messages are
NOT
due to
LEGITIMATE PROBLEMS.
.
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
SAMPLE
RANGE=50.0 PPM
CO = XX.XX
< TST TST > CAL
MSG
CLR
SETUP
SAMPLE
WHEEL TEMP WARNING
CO = XX.XX
TEST
CAL
MSG
CLR
SETUP
TEST
deactivates Warning
Messages
MSG
activates Warning
Messages.
<TST TST
> keys replaced with
TEST
key
6.2.2.
Test Functions
A series of Test Functions are available for viewing via the Front Panel display while
the analyzer is in
SAMPLE
mode. These functions provide valuable information
regarding the present operation and status of the instrument. These parameters
are also useful during troubleshooting exercises (see Section 11.1.2).