Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual do Utilizador descarregar pdf (Página 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.

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.”

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Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual do Utilizador Página 71