NS 5.14 Firmware
3–4 4900002262 rev. B 3-23-21
• Concentration: Current measured analyte concentration (ppmv).
• Wet Temp: Current temperature of the gas sample (degrees C)
when normal sample gas is flowing.
• Wet Pressure: Current pressure of the gas sample (mb) when
normal sample gas is flowing.
• Dry Temp: Current temperature (0.0 for non-differential units) of
the gas sample (degrees C) when scrubbed sample gas is flowing.
• Dry Pressure: Current pressure (0.0 for non-differential units) of
the gas sample (mb) when scrubbed sample gas is flowing.
• Fit Residue: Value ranging from 0 to 1 indicating how well the
measured spectrum fits the reference spectrum, where 1 represents
a perfect match.
• Fit Ratio: Ratio of the measured spectrum versus the Reference 1
spectrum.
• Dry DC: Signal level (laser intensity in counts, 0.0 for non-
differential units) at the high end of the current ramp during the dry
cycle.
• Wet DC: Signal level (laser intensity in counts) at the high end of the
current ramp during the wet cycle.
• Peak Index: Peak index of the measured spectrum.
• Ref Index: Peak index used for reference.
• Index Difference: Difference between measured and reference
peak indices, where a value other than 0 indicates Peak Tracking is
functioning.
• Val Flg: Indicates current stream being measured (0 = Process,
1 = Val 1, 2 = Val 2).
• Process Path Flg: Calculation path (reference spectra) used for the
concentration calculation (0 = Process Reference Spectra,
1 = Validation Reference Spectra).
• Current Midpoint: Current midpoint that the analyzer is using,
including any peak tracking adjustments.
• Fit Ratio 2: Ratio of the measured spectrum versus the Reference 2
spectrum, where a value of 0 indicates that the Reference 2 spectrum
was not used in the calculation of concentration.
• Fit Ratio 3: Ratio of the measured spectrum versus the Reference 3
spectrum, where a value of 0 indicates that the Reference 3 spectrum
was not used in the calculation of concentration.
• Fit Ratio 4: Ratio of the measured spectrum versus the Reference 4
spectrum, where a value of 0 indicates that the Reference 4 spectrum
was not used in the calculation of concentration.
• Fit Ratio 5: Ratio of the measured spectrum versus the Reference 5
spectrum, where a value of 0 indicates that the Reference 5 spectrum
was not used in the calculation of concentration.
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