Hanna Instruments HI 9829 User Manual
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50
• Press
standard.
• Clean out the calibration beaker and refill with
20.0 FNU standard.
• Immerse the sensor in the 20.0 FNU rinse
beaker and then shake off excess solution.
Place the sensor into the 20.0 FNU calibration
beaker and take measures to eliminate bubbles from the optical area.
• When the reading is stable the display shows the “Ready” message.
• Press
be stopped after the 20FNU point. Press ESC.
Storring will be displayed followed by Calibration
completed. Press
Alternately, to continue with third standard:
• Clean out the calibration beaker and refill with
200.0 FNU standard.
• Immerse the sensor in the 200.0 FNU rinse beaker and then shake off excess
solution. Place the sensor into the 200.0 FNU calibration beaker and take
measures to eliminate bubbles from the optical area.
• When the reading is stable the display shows the “Ready” message.
• Press
• After confirmation, the following messages are displayed: “Storing” and
“Calibration completed”.
• Press
• To return to the main menu, press ESC twice.
• Press
• To restore the factory calibration data, select the corresponding option in the
“Turbidity calibration” menu and then press
Note
Note
Note
Note
Note The calibration procedure can be terminated after 1 or 2 points by
pressing
update the offset of a previous 2 or 3 point calibration. A 2 point
calibration is recommended when the expected turbidity readings
are below 100 FNU.
• The current turbidity value, the standard value and “Not ready...” are displayed
and a stability timer counts down.
• When the reading becomes stable, the display shows the “Ready” message.