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inoLab
®
Multi 9310 IDS Dissolved oxygen
ba75937e10 08/2021
47
sure and input the salinity of the measured medium first.
When the salinity correction is switched on, the [Sal] indicator is displayed in
the measuring screen.
Air pressure correction The air pressure is automatically used for air pres-
sure correction during calibrating and for the display of the oxygen saturation
[%] parameter.
You can view the current air pressure in the sensor menu when an IDS D.O.
sensor is connected. In the measured value display, press the
<ENTER>
key.
The current air pressure is displayed as a piece of information.
Stability control
(AutoRead)
& HOLD function
The stability control function (
AutoRead
) continually checks the stability of the
measurement signal. The stability has a considerable impact on the reproduc-
ibility of measured values.
The measured parameter flashes on the display
 as soon as the measured value is outside the stability range
 when the automatic
Stability control
is switched off.
Irrespective of the setting for automatic
Stability control
(see section 10.6.3
A
UTOMATIC
S
TABILITY CONTROL
, page 80) in the
System
menu, you can start a
measurement with
Stability control
manually at any time.
To start the
Stability control
function manually, the HOLD function must be
enabled.
Hold function
Stability control
You can switch the salinity correction on or off and enter the salinity
in the menu for calibration and measurement settings (see section
10.3.1 S
ETTINGS FOR
D.O.
SENSORS
(
MENU FOR MEASUREMENT AND
CALIBRATION SETTINGS
), page 73).
1. Freeze the measured value with
<AR>
.
The [HOLD] status indicator is displayed.
The HOLD function is active.
You can terminate the HOLD function and the
Stability control
func-
tion with
<AR>
or
<M>
at any time.
2. Using
<ENTER>
, activate the
Stability control
function manually.
The [AR] status indicator appears while the measured value is assessed
as not stable. A progress bar is displayed and the display of the mea-
sured parameter flashes.
The [HOLD][AR] status indicator appears as soon as a stable measured
value is recognized. The progress bar disappears, the display of the mea-
sured parameter stops flashing, and there is a beep.
The current measurement data is output to the interface. Measurement
data meeting the stability control criterion is marked by AR.