Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual de usuario descargar pdf (Pagina 102)

<7. COMMISSIONING OF SC (Conductivity)>

7-10

IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00

NOTE

When setting the error limits of “Conductivity too high” and “Conductivity too low,” enter values

obtained by dividing the conductivity value to be used as a limit value by the cell constant (given

at factory shipment) of the sensor used (conductivity / cell constant). In resistivity measurements,

setavalue(resistivityxcellconstant).

NOTE

The temperature compensation is not performed around zero. In this case, a warning may be

issued.See“●Foralltemperaturecompensation”onApp.2-8.

l USP

ThesuitableerrorcategoryforUSP<645>monitoringcanbeset.Whenthisisset,itischecked

whether the non-temperature-compensated conductivity is higher than the limit value directed on

thestage1oftheproceduredescribedonUSP<645>.(RefertotheApp.2)

l USP safety margin

TheUSP<645>monitoringcanbemodiedbythissetting.Thepercentageofthelimitvalueof

USP<645>servesasasafetymargin.(RefertotheApp.2)

7.4 Logbookconguration

In“Logbookconguration,”theuserconguresinformationtobesavedtoalogbookorinitializes

the logbooks.

Logbooks are used to keep an electronic record of events such as error messages, calibrations,

andprogrammeddatachanges.Byreferringtothislog,userscan,forinstance,easilydetermine

maintenance or replacement schedules.

In“Logbookconguration,”theusercanselect“Off,”“1-1,”or“1-2”foreachitemofinteresttobe

logged. (For sensor 2, select “Off,” “2-1,” or “2-2.”) This can be done for items displayed on the

Settings logbook 1/3 to 3/3 screens. Assigning 1-1 or 1-2 to each item allows information to be

organized and logged in a logbook.

NOTE

Some events such as power-on are saved into the logbook “1-1” or “2-1”. This logbook may be

full earlier. It is recommended that important information be saved into the logbook “1-2” or “2-2”.

For“Eraselogbook”,aspeciedlogbook“1-1”or“1-2”canbeerasedindividually.

When the “Warn if logbook full” is set to “Yes”, a warning is given when the logbook come to near

full(maximum13pages).

NOTE

When the logbook gets full, the oldest information is erased automatically.

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Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 Manual de usuario Pagina 102