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THREE-POINT CALIBRATION
(Ratio Turbidity only)
To perform a three-point calibration, continue the procedure with the following steps:
• Remove the second standard cuvet.
• Place the 100 NTU standard cuvet (or the third
prepared formazin standard) into the holder, with the
cuvet mark aligned to the sign on the instrument top.
• Close the lid and press “Read” functional key.
The display will show the value blinking and the
lamp icon during
measurement.
• At the end of the measurement, the fourth proposed
calibration point (750 NTU) is displayed.
• At this moment it is possible to exit calibration
by pressing “End” functional key.
• If the calibration is terminated, the display will
briefly show “Store...” and the three point
calibration is saved. The instrument returns in the main screen.
FOUR-POINT CALIBRATION
(Ratio Turbidity only)
To perform a four-point calibration, continue the
procedure with the following steps:
• Remove the third standard cuvet.
• Place the 750 NTU standard cuvet (or the fourth
prepared formazin standard) into the holder, with the
cuvet mark aligned to the sign on the instrument top.
• Close the lid and press “Read” functional key. The display will show the value blinking and the
lamp icon during
measurement.
• At the end of the measurement, the fifth proposed calibration point (2000 NTU) is displayed.
• At this moment it is possible to exit calibration
by pressing “End” functional key.
• If the calibration is terminated, the display will
briefly show “Store...” and the four point calibration
is saved. The instrument returns in the main screen.
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