YOKOGAWA UV700G, User Manual

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<5. Calibration>
5-16
IM 12K01B02-01E
3. Kaolin standard solution (for 100 deg.)
After shaking up the concentrated kaolin standard solution (1000 deg.) which is
commercially available or compounded by following the above mentioned table,
immediately take the 200 mL and pour into the 2000 mL measuring flask and add tap water
up to the gauge line.
CAUTION
• Make sure to use the pure water to dilute the TURB span calibration solution. Do not use tap
water, groundwater, or industrial water.
• Kaolin standard solution can be deposited easily. Agitate the standard solution sufficientry
before calubration.
5.5.2 TURB (turbidity) Span Calibration
MEAS. screen CALIBRATION screen
[CAL.] [UV/VIS]
Refer to "5.3 Calibration Screen Display"
TURB CAL. screen
Perform the TURB span calibration after finishing the common zero calibration and the
common span calibration.
• Preparation
Calibration tank:
1
Span calibration solution: 2 L (measuring flask)
Cleaning bottle: 1
• Calibration procedure
1. Press [TURB.] on the CALIBRATION screen of the converter.
Calibration item
[TURB.]
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
“5.5.1 How to Prepare the Calibration Solution”, and clean the tank inside.
Pour approximately 100 mL
of span solution.
Clean the tank inside. Discard the solution.
Shake up and down