User Manual

<13. COMMISSIONING OF DO (Dissolved Oxygen)>
13-14
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
13.7.3 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.
13.7.4 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”).
13.7.5 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.
13.8 Calculated data setup
On this setup, parameters can be set for calculated data.
When two modules are installed on the instrument, the calculated data can be set for values
measured by two sensors.
Select“Differential”or“Average”ontheCalculateddatasetupscreen.
Differential:Adifferencebetweenmeasurementvaluesmeasuredbyasensor1andsensor2
is an output as a calculated result.
(Diff) (valueofthesensor1)–(valueofthesensor2)
Average: The average of measurement values measured by a sensor 1 and sensor 2 is an
output as a calculated result.
(Ave) (value of the sensor 1 + value of the sensor 2) / 2
Todisplaythecalculatedresult,select“Calculated”ontheDualdisplayscreen.(Section13.7.1.)
(The setting on the “Individual display” has no effect.)
While displaying a calculated data, measurement value of the sensor 1 or sensor 2 can be
checkedontheeachsensor’sdisplaywithpressing
Sensor
1
or
Sensor
2
at the lower right on the Main
display.
Pressing
returns the display to the original calculated data display.
A calculated data can be set as a process parameter on the “mA (Output)” setup screen. (Section
13.3.)