User Manual

<4. COMMISSIONING OF pH/ORP>
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IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
4.7.2 Trend
This screen is used to make settings for the Trend Graph Screen.
Set the process parameters to be displayed for each trend. They can be set for the 1st to 3rd
trends. When all three process parameters are set “Empty”, there is no trend display (no trend
button).
l X-axis: Timing
SelecttheX-axistiming’stimespanonthetrendgraphdisplayfromalist.
l Y-axis: Limits
SettheY-axishighandlowlimitsonthetrendgraphdisplayonaTrendscreenbasis.
NOTE
Updatingthetrenddisplaysetupresetsthecurrenttrendgraphandstartsanewone.
4.7.3 Auto Return
When no operation is performed for the time set in “Auto Return”, the display returns to the
Monitordisplay(ortotheMaindisplaywhentheMONITORdisplayisdisabled)andtheanalyzer
returns to a normal measuring mode. (When the Trend display is selected, the Auto Return
doesn’twork.)
SelectthetimefromamongDisable,10min,and60min.WhentheAutoReturnfunctionisnot
used,select“Disable.”
NOTE
A default is “10 min”. When maintenance like a calibration that may take much time is performed,
“60min”or“Disable”isrecommendedtobeselected.
4.7.4 Adjust contrast
TheLCDscreencontrastcanbeadjusted.
Pressingthe▲▼keysadjuststhecontrastin11levelsfrom+5to–5(includingthedefaultvalue
of “0”).
4.7.5 MONITOR display
Select “Enable” so that the Monitor display becomes available. A default is “Enable”.
DuringHold/Washconditionandawarning/faultcondition,theMaindisplayortheHomedisplay
is displayed to indicate the condition.
PH
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