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January 2009 UDA2182 Universal Dual Analyzer Product Manual 167
Calibrating a Dissolved Oxygen Probe Using Air Calibration Method
Introduction
This is the simplest and most commonly used method of calibration.
ATTENTION
If “Initial Installation”, power probe and analyzer for 24 hours before first air calibration.
1. Assure that the probe has been powered for at least one hour.
2.
Press the Hold button, if required.
3.
Expose the probe to air (or air-saturated water) until the temperature and DO value
reading stabilizes.
Procedure
Table 8-11 Calibrating a Dissolved Oxygen Probe Using Air Calibration Method
Step Action Screen
1
Press
Calibrate
CALIBRATION
Input Temp Cal
Output Cal
Cal History
Input PV Cal
CALIBRATION
Input Temp Cal
Output Cal
Cal History
Input PV Cal
2
Press
Enter
PV INPUT CAL
In 1 DO Cal
PV INPUT CAL
In 1 DO Cal
Use
to select
Input 1 or 2 DO Cal
3
Press
Enter
IN1 DO CAL
Sample Cal
Air Cal
Pressure Cal
Bias Volts
Reset Cal Factor
Reset Bias Volts
Bias Scan
Pressure Offset
Reset Prs Offset
IN1 DO CAL
Sample Cal
Air Cal
Pressure Cal
Bias Volts
Reset Cal Factor
Reset Bias Volts
Bias Scan
Pressure Offset
Reset Prs Offset
Use
to select
Air Cal