Horiba Scientific DS-72G, Instruction Manual

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4.2 SAL Calibration Setting
This section describes the procedures to set the conditions of SAL calibration.
A SAL (salinity) value is obtained by conversion of a COND (conductivity) value. However,
you can perform calibration using standard solutions.
Make sure to perform the calibration at the temperature specified on the standard solution
label. The procedures are mentioned below.
・
Before SAL calibration, do the unit settings of "3.1.1 Automatic Calibration Setting"
(P.35) and "4.3 SAL Measurement Setting" (P.50).
・
Tapping on the SAL CAL screen allows you to check the current calibration data. To
clear the calibration data, tap .
・
For the sea water measurement, perform the procedure in "4.1 Measurement Target
Selection" (P.48) before SAL calibration.
1.
Tap the channel setting and the measurement
item in the MEAS screen to set "CH2" and
"SAL".
2.
Press the CAL key to display the SAL CAL
screen.
3.
Wash the COND electrode with pure water (ion
exchange water), and wipe it off by filter paper or
tissue paper.
4.
Open the internal solution filler port of the COND
electrode.
5.
Immerse the COND electrode into a beaker of
the standard solution.
6.
Tap the numerical value at the right of "Set:" to
display the numerical-key screen.
7.
Enter the salinity value of standard solution, and
tap .
The conductivity value of standard solution used
for calibration applies.
8.
Tap to start the calibration.
When the calibration is completed, the HOLD
indicator is lit up and the calibration result is dis-
played.
9.
Tap after checking the calibration result
to return to the CAL screen.
To start SAL measurement, press the MEAS key.