LAUNCH                    X-431 PAD III User Manual 
111 
will be temporarily invalid during calibrating. Tap [Stop] to stop calibrating. Once 
it becomes active, it indicates calibration has completed.   
*Note:  In  process  of  calibration,  make  sure  CH1/CH2/CH3/CH4  has  no  signal  input. 
Moreover, calibration may take several minutes and please be patient to wait. 
<2> REF settings 
Reference  waveforms  are  saved  waveforms  to  be  selected  for  display.  The 
reference  function  will  be  available  after  saving  the  selected  waveform  to 
non-volatile memory. 
Tap    and then [REF] to enter the REF setting screen.   
   
Fig. 12-12 
Tap < or > to select the desired reference value for time/DIV and volts/DIV. To 
show or hide the REF, just check/uncheck the box before On/Off. 
<3> Display settings 
Tap    and then [Display settings] to enter the setting screen.   
   
Fig. 12-13 
Select  “Vectors”  or  “Dots”  to  display  waveforms  as  vectors  or  dots.  Check  / 
uncheck the box before Grid to turn on/off grid display. 
12.4.4 Measure 
<1> Channel source 
Tap    and then [Source], a screen similar to Fig. 12-14 will appear.