Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 71)

<4. COMMISSIONING OF pH/ORP>
4-17
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
However, for applications where the pH during wash shows almost the same value as the normal
pH, the difference will be approximately zero. In such a case, disable the wash recovery check.
An example of such applications is the monitoring of waste water pH. If you select water jet
cleaning in such a case, the normal pH as well as the washing time pH will be around pH 7; the
difference will be approximately zero, so the recovery time check will not work normally.
This function is available either for ORP measurement only.
pH
Time
Good Electrode
Bad Electrode
tR : Recovery Time
tW : Wash Time
tI : Wash Period
1/2∆pH
∆pH
1/3tR
tI : Wash Period
tW : Wash Time
tR : Recovery Time
F050605_3.ai
Figure 4.6
4.6.6 Factory setup
For “Factory setup,” there is no item to be set by the user.
NOTE
This menu is for service engineers only. This section is protected by a password. Attempting to
change data in the factory adjustment menu without the proper instructions and equipment could
result in corruption of the instrument setup and damage the performance of the unit.
4.7 Display setup
This screen is used to make various settings relating to screen display.
NOTE
Settable items differ depending on settings in “Sensor setup” and “Measurement setup.”
PH
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