Campbell Scientific PONDVIEW Real-Time Monitoring & Control Software - Manual (Page 31)

6-1
Section 6. DO Probe Calibration
6.1 Dissolved Oxygen Calibration
The CR10X-TD is programmed to allow for both automatic dissolved oxygen
air calibration and automatic hand calibration of the dissolved oxygen probes.
Use whichever method is best for your application.
6.2 Air Calibration
Before the air calibration process is enabled the dissolved oxygen probes and
temperature sensor must be removed from the water. Since sunlight can
greatly heat these probes, which will adversely effect the accuracy of the
calibrated value, this process is best performed when the sun is clouded or at
dusk or dawn.
Once the probes are out of the water use the right mouse button to select the
calibration mode. An on/off button will be displayed. Click the button with
the mouse. The line will change on the Calibration Knob to indicate the
calibration status. Give the probes 10 to 15 minutes to stabilize before setting
the calibration process off. The Calibration status should be in the off position
for normal operations.
6.3 Hand Calibration
Hand calibration allows calibrating the submersed dissolved oxygen probe to a
value obtained using an accurate hand-held dissolved oxygen meter. Click on
the Hand Calibration button. Edit the box corresponding to the DO probe that