Moisture
Peak
CH
4
Peak
The graph above shows a typical waveform that a user should see when
THE BARRACUDA
is
measuring the concentration of H₂O in a sample.
•
The size of the Moisture Peak will vary, depending on the concentration of H₂O vapor in the
sample. The greater the concentration of H₂O vapor in the gas sample, the larger the height
and size of the peak.
•
The vertical dashed yellow line and solid yellow line represent the acceptable range for your
signature water peak
•
The CH₄ (methane) peak is a signature portion of the Laser Frequency Absorption Waveform
and should always appear in every moisture reading. Its amplitude will be consistent from
reading to reading unless there are changes in pressure. If the CH₄ peak is missing, it is an
indication that something is likely wrong with your Analyzer
•
The vertical dashed red line and solid red line represent the acceptable range for your
signature methane peak
•
The Laser Power Waveform shows that the laser is working and functional
•
The Absorption Waveform shows the absorption that is occurring while the moisture
measurement is being performed.
Sample Waveform Displayed in the Laser Graph Window
Laser Power
Waveform
Absorption
Waveform
35
