Dissolved oxygen
inoLab
®
Multi 9310 IDS
48
ba75937e10
08/2021
Criteria for a stable
measured value
The
Stability control
function checks whether the measured values are stable
within the monitored time interval.
The minimum duration until a measured value is assessed as stable is the mon-
itored time interval. The actual duration is mostly longer.
7.1.2 Measuring the temperature
For reproducible D.O. measurements, it is essential to measure the tempera-
ture of the test sample.
IDS D.O. sensors measure the temperature with a temperature sensor inte-
grated in the IDS sensor.
7.2
FDO
®
Check (checking the FDO
®
925)
The sensor is checked in water vapor-saturated air in the check and storage
vessel FDO
®
Check.
7.2.1 Why should you check the sensor?
With the
FDO
®
Check procedure you can find out in a simple manner whether
the FDO
®
925 D.O. sensor should be cleaned or calibrated.
You can prematurely terminate the
Stability control
function manu-
ally with
<ENTER>
at any time. If the
Stability control
function is
prematurely terminated, the current measurement data are output
to the interface without the AutoRead info.
You can switch off the beep (see section 10.6 S
3.
Using
<ENTER>
, start a further measurement with stability control.
or
Release the frozen measured value again with
<AR>
or
<M>
.
The [AR] status display disappears. The display switches back to the
previous indication.
Measured parameter
Time interval
Stability in the time
interval
D.O. concentration
20 seconds
Δ
: better than 0.03 mg/l
D.O. saturation
20 seconds
Δ
: better than 0.4 %
D.O. partial pressure
20 seconds
Δ
: Better than 0.8 mbar
Temperature
15 seconds
Δ
: better than 0.5 °C
Содержание inoLab Multi 9310 IDS
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