Measurement System
TDS 620A, 640A & 644A User Manual 3Ć89
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          
          
        !
     
          !
       
         
 
HighĆLow Setup
" HighĆLow Setup #-& )+(/#, -0( "(#, (+ "(0 -" (,#%%(,()
-+&#', -" #!" ' (0 %/%, ( 0/ (+&, ",+ '
!
#,-(!+& ,-, -" /%., ,--#,-#%%2- ,%-, -" &(,- (&&(' /%.
#-"+ (/ (+ %(0 -" &# )(#'- )'#'! (' 0"-"+ #- #,  #'#'!
-" "#!" (+ %(0 + +' %/% #' -"#, ,--#,-#% ))+(" #!'(+,
,"(+- -+& ++-#(', (/+,"((- +#'!#'! - "#,-(!+& #, -" ,-
,--#'! (+ 1&#'#'! ).%,,
#'4&1 .,, -" "#!",- ' %(0,- /%., ( -" 0/ (+& +(+
"#, ,--#'! #, ,- (+ 1&#'#'! 0/ (+&, -"- "/ '( %+! %-
)(+-#(', -  (&&(' /%. ,." , ,#' 0/, ' -+#'!% 0/,5
%&(,- '2 0/ (+& 1)- (+ ).%,,
(., -" "#!"4%(0 ,-.)
+,, MEASUREHighĆLow Setup&#'Histogram (+ MinĆMax
,#  2(. ,%- MinĆMax 2(. &2 %,( 0'- -( "$ '(+ +/#,
/%., .,#'! -"  +' /%, &#' &'.
Reference Levels
' 2(.  #' -" + +' %/%, -" #!#-#3#'! (,#%%(,() 0#%% .,
-"& (+ %% &,.+&'-, +*.#+#'! -"(, %/%, (,- -" + +' %/%,
 +,, MEASUREReference Levels&#'Set Levels ,# -(
"((, 0"-"+ -"  +', + ,- #'  +%-#/ -( #!"  '
(0  (+ ,- 1)%##-%2 #' -" .'#-, ( -" ,%- 0/ (+& -2)#%%2
/(%-,  #!.+ 4 , -" !'+% ).+)(, $'( (+ $2) -(
'-+ -" /%.,
%#, -"  .%- ,%-#(' - #, ., .% (+ !'+% ).+)(, ))%#4
-#(',
Units #, "%) .% (+ ,--#'! )+#, /%., (+ 1&)% # 2(. +
-+2#'! -( &,.+ ,)# #-#(', (' ' 44 #+.#- 2(. ' ,-
-" %/%, )+#,%2 -( 44 ,)# #-#(' /(%-! /%., 2
 #'#'! -" "#!" ' %(0 + +', #' .'#-,