wtw Oxi 7310, Operating Manual

Page: 26 / 60

Dissolved oxygen Oxi 7310
26
ba75931e03 12/2011
5.2.5 Calibrating with a Comparison meas. (OxiComp)
For this calibration procedure, the
Comparison meas.
setting must be set to
On
in the
Calibration
menu.
4. Start the measurement with
<ENTER>
.
The measured value is checked for stability (stability control).
The [AR] status indicator is displayed. A progress bar is displayed and
the display of the measured parameter flashes.
5. Wait for the end of the measurement with stability control or accept the
calibration value with
<ENTER>
.
The calibration record is displayed and output to the interface.
6. Using
<F1>
/
[Continue]
or
<ENTER>
, switch to the measured value dis-
play.
The meter displays a D.O. saturation of approx. 101.7 % in the air cali-
bration vessel.
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>
.
O
2
0.88
25.1
°C
OxiCal
01.07.2011
08:00
O
2
7.92
mg/l
25.1
°C
OxiComp
01.07.2011
08:00