wtw inoLab Level 3 - Blank Value Correction (Bw Corr)

Ion concentration
96
7.2.2 Blank value correction (Bw Corr)
If the ion concentration in the sample is so small that it does
not lie in the linear range of the electrode, you can increase
the ion concentration in the linear range with the blank value
correction by the addition of a blank value solution.
The displayed measured value is the difference between the
actual measured value and the determined blank value.
12 If mg/kg, ppm, % was selected:
Enter the density of the sample with
82.
Continue with step 13.
13 Confirm the entry with
g or [ESC].
The units change over.
14 Switch to the measured value display.
1 Switch to the Menu mode.
2 Use
46 to select the main Meas menu.
3 Select the ISE menu item with 82.
4 Confirm the ISE menu item with
g.
5 Select the ISE setup menu item with 82.
6 Confirm the ISE setup menu item with
g.
7 Select the Bw Corr menu item with 82.
8 Confirm the Bw Corr menu item with
g.
The Bw Corr function is active (✔).
The flashing
- symbol appears on the measured
value display.
9 Perform a calibration (see section 7.3).
10 Use
m to finish the calibration.
The prompt for the measurement of the blank value
appears.