Xylem Multi 3430 - Manual (Page 75)

Multi 3430 Operation
75 ba75865e11 02/2011
Calibration evaluation of
the FDO
®
925
Calibration in
water vapor-
saturated air
Proceed as follows to calibrate the D.O. sensor:
Note
The sponge in the check and storage vessel must be moist (not wet).
Leave the sensor in the check and storage vessel long enough so it can
adapt to the ambient temperature.
Display Calibration record Relative slope
+++ S = 0.94 ... 1.06
++ S = 0.92 ... 0.94 or
S = 1.06 ... 1.08
+ S = 0.90 ... 0.92 or
S = 1.08 ... 1.10
Error Error
S < 0.90 or
S > 1.10
Eliminate the error according to
chapter 6 W
HAT TO DO IF ...
1 Connect the D.O. sensor to the meter.
2 Place the FDO
®
925 D.O. sensor into the check and storage
vessel, FDO
®
Check.
3 Start the calibration with <CAL>.
The last calibration data (relative slope) is displayed.