User Manual

<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.