LAUNCH                    X-431 PAD III User Manual 
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waveform. When a trigger is set up properly, it can convert unstable displays or 
blank screens into meaningful waveforms. 
When the Scopebox starts to acquire a waveform, it collects enough data so that 
it can draw the waveform to the left of the trigger point. The Scopebox continues 
to acquire data while waiting for the trigger condition to occur. After it detects a 
trigger, the Scopebox continues to acquire enough data so that it can draw the 
waveform to the right of the trigger point. 
User can make some settings directly by tapping < or > next to options. 
   
Fig. 12-9 
Options descriptions: 
Menu  Comments/Settings 
Channel  To select the channel source. 
Volts/DIV 
It  is  defined  as  “Volts/Division”  and  mainly  used  to 
change the resolution. 
Coupling 
Trigger  coupling  determines  what  part  of  the  signal 
passes  to  the  trigger  circuit.  AC,  DC  and  Ground  are 
included: 
AC: Blocks the DC component of the input signal. 
DC: Passes both AC and DC components of the input 
signal. 
Ground: Disconnects the input signal. 
Probe 
When using a probe, the Scopebox allows you to select 
the  attenuation  factor  for  the  probe.  The  attenuation 
factor changes the vertical scaling of the Scopebox so 
that the measurement results reflect the actual voltage 
levels at the probe tip.