Xylem WTW Oxi 3310, Operating Manual

Page: 33 / 64

Oxi 3310 Operation
33 ba75804e08 10/2017
the calibration. The evaluation appears on the display and in the cali-
bration record.
Calibration in
water vapor
saturated air
(air calibration vessel)
For this calibration procedure, the Comparison meas. setting must be
set to Off in the Calibration menu.
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.