INSTAAR fast ozone serial out variables:
1   NOAA timecode
2   YYYYMMDD
3   hhmm
4   ss.s
5   counts
6   ozone (ppb) based on current calibration
7   F1 (lag pulse, not used on MOSAIC)
8   F2 (NO valve control from VI)
9   F3 (nox string, not used on MOSAIC)