5-10
IM WT310E-01EN
Relationship between Resetting Integration and START/STOP 
Key Operations
The relationship is shown in the figure below.
 
Integrated 
value 
Elapsed 
integration 
time 
Interruption 
Start 
Restart 
Interruption 
Reset 
Restart 
Set integration timer value 
START  STOP  START  STOP  RESET  START  RESET 
Data When a Power Failure Occurs during Integration
• Evenifapowerfailureoccursduringintegration,theintegratedresultswillberetainedinmemory.If
the power is restored after a failure, this instrument will be in the following conditions.
• Integrationwillbestopped.
• BoththeSTARTandSTOPkeyswillbeilluminated.
• Integrationresultsuptothepointwhenthepowerfailureoccurredwillbedisplayed.
• Afterthepowerisrestored,youcannotsimplyrestartintegrationwhereyouleftoff.Reset
integration before starting it again.
Integration Resume Function at Power Failure Recovery
When the integration resume function at power failure recovery is set to ON, the integration operation 
can be resumed if a power failure occurs and recovers while integration is in progress.
Description
  If this function is set to ON and a power failure occurs and then recovers while integration is in 
progress(theSTARTkeyisilluminated)orwhileintegrationispaused(theSTOPkeyisilluminated),
this instrument behaves in the following manner.
• Theintegrationresultbeforethepowerfailureisdisplayed,andthisinstrumententersa
integration paused state (the STOP key is illuminated).
• IntegrationcanberestartedwiththeSTARTkeyoracommand.
• Theintegrationdataafterrestartingisaddedtotheresultsbeforethepowerfailure.
Turning the Function On
  Turn the power on while holding down SHIFT+FUNCTION A+VOLTAGE.
Astartmessage“WT300E/SYSTEM/START”appears,andthenalltheLEDsilluminate.
Hold down the keys until all the LEDs illuminate.
Then, “OPT.01/ON” appears.
Turning the Function Off
  Performing the above procedure when the function is on will turn it off.
  In this case, “OPT.01/OFF” appears.
Checking the On/Off State of the Function
  From the menu select UTILITY(SHIFT+SETUP)→“inFo”→“VEr.”
 Fordetailshowtoselectfromthemenu,seesection8.1.
  If the function is on, display D shows “OPT.01.”
5.4  Notes about Using Integration