Dissolved oxygen inoLab
®
Multi 9620 IDS
72 ba77173e04 12/2017
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.
8.1.2 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.
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 interfaces USB-B (USB Device, e.g. PC) and USB-A (USB
Host, e.g. USB memory device or USB printer) without AutoRead
info.
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 pre-
vious indication.
Measured parameter Time interval Stability in the time inter-
val
D.O. concentration 20 seconds
∆ : better than 0.03 mg/l
D.O. saturation 20 seconds
∆ : better than 0.4 %
D.O. partial pressure 20 seconds
∆ : Better than 0.8 mbar
Temperature 15 seconds
∆ : better than 0.5 °C
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