YOKOGAWA PH402G - Page 73

IM 12B6B3-E-H
Calibration 6-5
YES
NO
YES
NO
YES
NO
pH
pH
ENT
YES
NO
pH
YES
NO
pH
NO
YES
YES
NO
ENT
YES
Adjust value
with >, , ENT Keys
>
YES
YES
Return to
measuring mode.
YES
YES
Return to
measuring mode.
Adjust value
with >, , ENT Keys
>
NO
Manual Calibration of
zero point according
to IEC 746-2
Manual Calibration of mV
offset for ORP (2nd parameter).
Where both pH and ORP (or rH)
are measured, the offset (Asymmetry
potential) of the second parameter
is calibrated as shown below.