Section  7  —  Analyzing  Measurements  Onsite 
147 
View Orders 
 
When  orders  are  displayed,  the  frequency  axis  of  a  spectral  chart  is 
labeled  in  order  of  running  speed,  rather  than  Hz  or  CPM.  This  enables 
you  to  see  how  closely  spectral  peaks  correspond  to  the  running  speed 
of  the  machine.  
 
You  can  also  move  a  cursor  to  a  peak  of  interest.  The  exact  number  of 
orders  at  that  frequency  will  display  at  the  top  of  your  screen. 
 
To  view  an  order: 
1.  Display  a  spectral  chart.   
2.  Set  the  RPM. 
3.  Press    >  Press    X  Axis  Orders. 
4.  Repeat  the  previous  step  to  deactivate  orders.