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Getting Started Teledyne API - Model 200EH/EM Operation Manual
22
3.2.2. WARM-UP
The M200EH/EM requires about 45 minutes warm-up time before reliable NO
X
, NO and NO
2
measurements can
be taken. During that time, various portions of the instrument’s front panel will behave as follows.
Table 3-7: Front Panel Display During System Warm-Up
NAME COLOR BEHAVIOR SIGNIFICANCE
Concentration
Field
N/A
Switches between
NO
X
, NO and NO
2
This is normal operation.
Mode Field N/A
Displays blinking
“SAMPLE”
Instrument is in sample mode but is still in the process
of warming up (hold-off period is active).
STATUS LEDs
Sample Green On
Unit is operating in sample mode, front panel display
is continuously updated.
Cal Yellow Off The instrument’s calibration is not enabled.
Fault Red Blinking
The analyzer is warming up and out of specification for
a fault-free reading.
See Figure 3-3 for locations
3.2.3. WARNING MESSAGES
During warm-up, internal temperatures and other parameters may be outside of specified limits. The software
will suppress most warning conditions for 30 minutes after power up.
SAMPLE HVPS WARNING NOX = 0.0
TEST CAL MSG CLR SETUP
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=200.0 PPM NO = 0.0
< TST TST > CAL MSG CLR SETUP
SAMPLE HVPS WARNING NOX = 0.0
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-u
p
p
eriod
04521C (DCN5731)