MD 8000 L
Dissolved oxygen
ba77218e01
11/2018
45
8.2.5 Calibrating with
Comparison meas.
(e.g. Winkler titration)
With the calibration procedure
Comparison meas.
, the measured value of the
sensor is adjusted to the nominal value of a comparison solution with a correc-
tion factor. The current correction factor is documented in the sensor menu (
i
Factor =
x.xxx
) and in the calibration record.
For this calibration procedure, the
Comparison meas.
setting must be set to
on
in the
Calibration
menu.
Proceed as follows to calibrate the D.O. sensor:
4.
Start the measurement with
<OK>
.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter flashes.
5.
Wait for the measurement with stability control to be finished (beep,
[HOLD][AR] status indicator).
The calibration record is displayed and output to the interface.
6.
Switch to the measured value display with
<F1>
/
[
continue
]
.
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>
.
4.
Start the measurement with
<OK>
.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. The measured parameter
flashes.
5.
Wait for the measurement with stability control to be finished (beep,
[HOLD][AR] status indicator).
O
2
7.92
mg/l
25.1
°C
Compare
01.11.2018
08:00
DO Adjust
Summary of Contents for MD 8000 L
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