Campbell Scientific EC150 CO2 and H2O Open-Path Gas Analyzer and EC100 Electronics with Optional CSAT3A 3D Sonic Anemometer - Manual (Page 46)

EC150 CO
2
/H
2
O Open-Path Gas Analyzer
TABLE 8-3. Diagnostic Flags and Suggested Actions
Flag
Number Flag Name Comments
10 Ambient
Temperature
Set when the ambient temperature is
below −30°C or above 55°C or when the
air temperature sensor is not connected.
If the user enters a fixed temperature,
this temperature must be within the
range −30° to 55°C.
11 Ambient Pressure Set when the ambient pressure is outside
the specified limits (55 to 120 kPa) or
the external pressure sensor is
configured but not connected.
12 CO
2
I Set if CO
2
measurement signal is outside
prescribed limits. It can be turned on
when the measurement path is
obstructed by insects, dust, precipitation,
condensation etc. If it persists, consult
with a Campbell Scientific application
engineer.
13 CO
2
I
o
Set if CO
2
reference signal is outside
prescribed limits. It can be turned on
when the measurement path is
obstructed by insects, dust, precipitation,
condensation etc. If it persists, consult
with a Campbell Scientific application
engineer.
14 H
2
O I Set if H
2
O measurement signal is
outside prescribed limits. It can be
turned on when the measurement path is
obstructed by insects, dust, precipitation,
condensation etc. If it persists, consult
with a Campbell Scientific application
engineer.
15 H
2
O I
o
Set if H
2
O measurement signal is
outside prescribed limits. It can be
turned on when the measurement path is
obstructed by insects, dust, precipitation,
condensation etc. If it persists, consult
with a Campbell Scientific application
engineer.
16 H
2
O I
o
Variation Set if fast changes in the CO
2
reference
signal are detected. If it persists, consult
with a Campbell Scientific application
engineer.
17 CO
2
O I
o
H2OIo
Variation
Set if fast changes in the H
2
O reference
signal are detected. If it persists, consult
with a Campbell Scientific application
engineer.
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