The calibration drift check of a water quality monitor sensor for disolved oxygen, during a site visit. The Code indicating whether the reading is for calibration or recalibration. The Code indicating the type of DO calibration method used. The date and time of the disolved oxygen sensor check or calibration reading. The water temperature measured during the disolved oxygen check or calibration. The default units is celsius. The barometric pressure measured during the disolved oxygen check or calibration, in inches of mercury. The dissolved oxygen table value (from temperature and barometric pressure) for the dissolved oxygen calibration check reading, in milligrams per liter. The salinity correction factor for the dissolved oxygen calibration check or recalibration reading. The dissolved oxygen value for the dissolved oxygen calibration check or recalibration reading. The percent error between the disolved oxygen standard and the check or calibration reading. The dissolved oxygen value in zero dissolved oxygen solution for the dissolved oxygen calibration check reading, in milligrams per liter.