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DO calibration
20
2
nd
point calibration
1. After placing the DO electrode in the low concentration solution (zero standard
solution), press the
key. Meter starts checking various calibration values with a
blinking
on screen.
2. Wait for the
to stabilize (stable calibration reading).
3. Press the
key again to move to Zero Calibration Mode.
4. Use the
keys to adjust the DO reading.
5. Press the
ENT
key to confirm and save calibration data.
6. Meter displays
CAL DONE
indicating end of the calibration procedure.
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