Getting Started Model 360E Instruction Manual
3.2.2. Warm Up
The M360E requires about 30 minutes warm-up time before reliable CO2 measurements can be taken. During
that time, various portions of the instrument’s front panel will behave as follows. See Figure 3-1 for locations.
Table 3-5: Front Panel Display During System Warm-Up
Name Color Behavior Significance
Concentration
Field
N/A Displays current,
compensated CO2
Concentration
N/A
Mode Field N/A Displays blinking
“SAMPLE”
Instrument is in sample mode but is still in the process
of warming up.
STATUS LED’s
Sample Green On Unit is operating in sample mode; front panel display
is being updated.
Flashes On/Off when adaptive filter is active
Cal Yellow Off The instrument’s calibration is not enabled.
Fault Red Blinking
The analyzer is warming up and hence out of specification
for a fault-free reading. Various warning messages will
appear.
3.2.3. 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 Chapter 11 of this manual.
To view and clear warning messages, press:
SAMPLE HVPS WARNING CO2 = 0.00
TEST CAL MSG CLR SETUP
Make sure warning messages are
not due to real problems.
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 returns to
SAMPLE mode
SAMPLE RANGE=500.000 PPM CO2 = 0.00
< TST TST > CAL MSG CLR SETUP
SAMPLE HVPS WARNING CO2 = 0.00
TEST CAL MSG CLR SETUP
TEST deactivates warning
messages
MSG activates warning
messages.
<TST TST> keys replaced with
TEST key
NOTE:
If the 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
Table 3-6 lists brief descriptions of the warning messages that may occur during start up.
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