LAUNCH                    X-431 PAD III User Manual 
120 
   
Fig. 13-2 
Fig.  13-3  below  shows  the  valid  and  invalid  ignition  waveforms.  Under  the 
working  status  of  valid  ignition,  the  breakdown  voltage  and  spark  voltage  are 
higher because the cylinder is  filled with fresh combustible mixture gas, which 
has a lower ionization level and vice versa. 
 
Fig. 13-3