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4 CALIBRATION
6. Press [SPAN].
A confirmation screen is displayed asking whether to start calibration.
7. Press [YES] to start span calibration.
The screen shows that the calibration is in progress.
8. Adjust the flow rate to 50 mL/min using the valve.
Wait until the calibration is completed (10 minutes).
Tip
[FIX]: Forcibly stops the calibration and updates it without waiting for automatic completion
[STOP]: Stops the calibration
Note
During the calibration with span liquid, if air bubbles are mixed in and sudden changes are seen,
1. Stop the calibration sequence.
2. Perform drainage operation and automatic cleaning operation.
3. When the instrument becomes stable, repeat the calibration.
The screen shows that the calibration is complete.
9. Press [YES].
The turbidity span calibration coefficient is updated.
10. Close the valve of the calibration tank.
11. Open the stop valve.
46
Mark showing the 80 mL/min position
50 mL/min position (three gradations below 80 mL/min position)
Flow rate reading position (top surface of the float)
Valve
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