4 Calibration
32
4.5.2
TURB (turbidity) Span Calibration
Perform the TURB span calibration after finishing the common zero calibration and the
common span calibration.
Preparation
Calibration procedure
1.
Press [TURB.] on the CALIBRATION screen of the control unit.
2.
Clean the attached calibration tank with zero solution thoroughly, pour
approximately 100 mL of the TURB span solution (from the 2 L measuring flask),
which is prepared by following "4.5.1 How to Prepare the Calibration Solution"
(page 30), and clean the tank inside.
3.
After cleaning, pour the TURB span solution to the scale.
[CAL.]
[UV/VIS]
MEAS. screen
Refer to "4.3 Calibration Screen Display" (page 17)
CALIBRATION screen
TURB CAL screen
Calibration tank:
1
Span calibration solution:
2 L (measuring flask)
Cleaning bottle:
1
Light shielding glasses:
1 (Eye protector of the scale number 4 equivalence prescribed
by ISO 4850)
[TURB.]
Calibration item
Pour approximately 100 mL
Shake up and down.
Clean the tank inside.
Discard the solution.
of span solution.
Amount to the scale is approximately 1.3 L.
Scale
