YSI MultiLab 4010P-1 - Manual (Page 45)

MultiLab 4010-1 Dissolved oxygen
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7 Dissolved oxygen
7.1 Measuring
7.1.1 Measuring D.O.
Selecting the
displayed
measured parameter
You can switch between the following displays with <M>:

D.O. concentration [mg/l]
 D.O. saturation [%]
Salinity correction When measuring the D.O. concentration [mg/l] of solutions with a salt content
of more than 1 psu, a salinity correction is required. For this, you have to mea-
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
(DO % Saturation
local function)
The integrated air pressure sensor of the MultiLab 4010-1 measures the
current air pressure.During calibration, the air pressure correction function is
automatically activated. For measurement, the air pressure correction is
applied if the parameter oxygen saturation [%] is displayed and the DO %
Saturation local function is enabled.
The current air pressure is displayed, when an IDS D.O. sensor is connected.
1. Connect the IDS D.O. sensor to the meter.
The D.O. measuring screen is displayed.
2. If necessary, select the measured parameter with <M>.
3. Check or calibrate the meter with the sensor.
4. Immerse the IDS D.O. sensor in the test sample.
O
2
mg/l
7.92
25.0 °C
760 mmHg
01.02.2014
08:00
Info USB output
You can switch the salinity correction on or off and enter the salinity
in the menu for calibration and measurement settings (see section
9.3.1 S
ETTINGS FOR D.O. SENSORS ( MENU FOR MEASUREMENT AND
CALIBRATION SETTINGS ), page 63).