Section  4  —  Measurement  Types  and  their  Uses 
50 
15.  To  change  the  frequency  of  the  strobe  light  to  another  peak,  or  to 
fine-tune  the  frequency,  select  another  spectral  peak  on  the  graph 
using  the  cursor  keys  —  The  strobe  light  frequency  will  change  to 
match  the  new  peak's  frequency  >  Cycle  through  each  spectral  peak 
to  identify  the  components  generating  vibrations  at  each  frequency. 
 
NOTE: Clearing the cursors (ALT then  ) will NOT disable the 
strobe cursor. To cancel the cursor you must exit the spectrum 
measurement screen.  
 
Read  Speed  of  Connected  Strobe 
 
To  read  the  speed  of  a  connected  strobe: 
1.  Connect  the  LEMO-to-strobe  cable's  LEMO  plug  to  your  instrument's 
tachometer  socket.  
2.  Connect  the  black  Read  3.5  mm  to  the  strobe  lamp's  output  socket 
—  Ensure  the  Drive  plug  is  disconnected  and  the  strobe  is set  to 
Positive  Signal  Mode  (POS)  if  required  by  the  strobe  model. 
3.  Activate  the  strobe  lamp  and  adjust  the  output  rate  as  required.  
 
NOTE: The strobe frequency must be kept below 140 Hz, 8400 
CPM. 
 
4.  Press    Measure  >  Press    Tach.   
5.  Press    Tach  Type  repeatedly  to  set  the  tachometer  to  Standard 
—  The  current  frequency  of  the  strobe  light  will  display.