6
Calibration
3.1
3. Calibration
ODO RTU requires periodic calibration. Calibration procedures follow the same basic steps with variations for the specific
parameter. The specific Modbus commands that accompany the calibration can be found in the
section of this document
Make sure the calibration cup, sensor guard, and all sensors are clean. YSI strongly recommends installing the sensor guard before
placing the sensors into the calibration cup.
For highest data accuracy, thoroughly rinse the calibration cup and sensors with a small amount of the calibration standard for the
sensor to be calibrated. Discard the rinse standard, and proceed with a fresh standard.
Be careful to avoid cross-contamination with other standards between calibrations by thoroughly rinsing with DI water and drying
the calibration cup and sensors.
Calibration Setup
