TROUBLESHOOTING & REPAIR PROCEDURES Model 360E Instruction Manual
11.1.1. Interpreting WARNING Messages
The most common and/or serious instrument failures will result in a warning message being displayed on the
front panel. Table 11-1 lists warning messages, along with their meaning and recommended corrective action.
It should be noted that if more than two or three warning messages occur at the same time, it is often an
indication that some fundamental analyzer sub-system (power supply, relay board, motherboard) has failed
rather than indication of the specific failures referenced by the warnings. In this case, it is recommended that
proper operation of power supplies (See Section 11.5.2), the relay board (See Section 11.5.5), and the A/D
Board (See Section11.4.7.1) be confirmed before addressing the specific warning messages.
The analyzer will alert the user that a Warning Message is active by displaying the keypad label MSG on the
Front Panel. In this case the Front panel display will look something like the following:
The analyzer will also alert the user via the Serial I/O COM port(s) and cause the FAULT LED on the front panel
to blink.
SAMPLE BENCH TEMP WARNING CO2 = XXX.0 TEST CAL MSG CLR SETUP
To view or clear the various warning messages press:
SAMPLE WHEEL TEMP WARNING CO2 = 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=500.00 PPM CO 2 = XX.XX
< TST TST > CAL MSG CLR SETUP
SAMPLE WHEEL TEMP WARNING CO2 = XX.XX
< TST TST > CAL MSG CLR SETUP
TEST deactivates Warning
Messages until New warning(s)
are activated
MSG activates Warning
Messages.
<TST TST> keys replaced with
TEST key
Figure 11-1: Viewing and Clearing Warning Messages
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