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Perform the 1st point calibration.
6
Check that the measurement
value is stable, and press
The display changes to the 2nd point
calibration preparation.
A zero standard solution is 100 ml of deionized water into
7
which 5 g or more of sodium sulfite has been added and
completely dissolved.
Remove the sponge used for 1-point
8
calibration from the calibration container,
and pour the zero standard solution into
the container up until the fill line.
Insert the sensor's temperature sensor until it is immersed
9
in the zero standard solution prepared.
・ Insert the measurement area so that approximately 1 cm is
left between it and the bottom of the calibration container.
Caution
・ Insert the sensor so that no bubbles build up on the
measurement area.
Leave this to stand for at least 5 minutes to allow the
10
temperature to stabilize.
.
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