4 Calibration
24
4.4.3
Common Span Calibration
Perform the common span calibration after finishing the common zero calibration.
Preparation
Calibration procedure
1.
Press [UV/VIS] on the CALIBRATION screen of the control unit.
2.
Clean the attached calibration tank with zero solution thoroughly, pour
approximately 100 mL of span solution (in the 2 L measuring flask), which is
prepared by following "4.4.1 How to Prepare Calibration Solution" (page 18), and
clean the tank inside.
3.
After cleaning, pour the span solution up to the scale.
[CAL.]
[UV/VIS]
MEAS. screen
Refer to "4.3 Calibration Screen Display" (page 17)
CALIBRATION screen
UV/VIS 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)
[UV/VIS]
Calibration item
Pour approximately 100 mL
Shake up and down.
of span solution.
Clean the tank inside.
Discard the solution.
Scale
Amount to the scale is approximately 1.3 L.
