Xylem Oxi 3210 Dissolved oxygen (D.O.) meter - Manual (Page 32)

Operation Oxi 3210
32 ba75795e02 03/2009
Calibration evaluation After the calibration, the measuring instrument automatically evaluates
the current status of the calibration. The evaluation appears on the
display and in the calibration record.
Calibration in
water vapor
saturated air
(air calibration vessel)
Proceed as follows to calibrate the instrument:
Note
The sponge in the air calibration vessel must be moist (not wet). Leave
the sensor in the air calibration vessel for a time long enough to adjust.
Display Calibration record Relative slope
+++ S = 0.8 ... 1.25
++ S = 0.7 ... 0.8
+ S = 0.6 ... 0.7
Error Error
S < 0.6 or S > 1.25
Eliminate the error according to
chapter 6 W
HAT TO DO IF ...
1 Connect the D.O. sensor to the meter.
2 Put the D.O. sensor into the air calibration vessel.
3 Start the calibration with <CAL>.
The last calibration data (relative slope) is displayed.