Xylem MULTI 3500i HANDHELD MULTIPARAMETER METERS - Manual (Page 58)

Operation Multi 3500i
56
Calibration via a
Comparison meas.
For this calibration procedure, the Comparison meas. setting must be
set to On in the measuring menu.
Note
Before calibrating via a comparison measurement, the sensor should
be calibrated in the air calibration vessel.
Proceed as follows to calibrate the instrument:
8 You have the following options:
z Accept the new calibration values with <MENU/ENTER>.
Subsequently, the calibration record is displayed and output
to the interface at the same time.
z To switch to the measured value display without accepting
the new calibration values, press <M> or <ESC>.
i Relative slope = 0.98
i Sensor+++
Accept
ConOx <CAL>
1 Connect the DO sensor to the measuring instrument.
2 Immerse the DO sensor in the reference solution.
3 In the measured value display, select the DO measuring win-
dow with <
▲> <▼> and <M>.
4 Start the calibration with <CAL>.
The calibration display appears.
i Immerse sensor in ref. sol.
Continue
ConOx <CAL>