Dissolved oxygen (D.O.)
Multi 9420
74
ba75964e04
04/2015
7.3.5 Calibration with
Comparison meas.
(FDO Comp)
For this calibration procedure, the
Comparison meas.
setting must be set to
on
in the
Calibration
menu.
Proceed as follows to calibrate the instrument:
2.
Place the
FDO
®
925 D.O. sensor in the check and storage bea-
ker, FDO
®
Check.
The sponge in the check and storage beaker must be moist (not
wet). Leave the sensor in the check and storage beaker long
enough so it can adapt to the ambient temperature.
3.
Start the calibration with
<CAL>
.
The last calibration data (relative slope) is displayed.
4.
Start the measurement with
<ENTER>
.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter flashes.
5.
Wait for the AutoRead measurement to be finished.
The calibration record is displayed and output to the interface.
6.
Switch to the measured value display with
<ENTER>
.
Before calibrating via a comparison measurement, the sensor
should be calibrated in the air calibration vessel.
1.
Connect the D.O. sensor to the meter.
2.
Immerse the D.O. sensor in the reference solution.
3.
Start the calibration with
<CAL>
.
Содержание Multi 9420
Страница 1: ...OPERATING MANUAL ba75964e04 04 2015 Multi 9420 DIGITAL METER FOR IDS SENSORS...
Страница 91: ...Multi 9420 Settings ba75964e04 04 2015 91...
Страница 113: ...Multi 9420 Maintenance cleaning disposal ba75964e04 04 2015 113...
Страница 131: ......