advantest corporation TR5821, Operation Manual

Page: 85 / 109

( 5 ) T h e re s u lt d is p la y d iff e rs fr o m th e d is p la y o f t h e se t d a ta e x p la in e d in
( 4 ). T h e n u m e r ic p a r t is a m a x im u m 8 d ig its , o r 7 d ig its w h e n a m in u s
sig n is d is p la y e d . T h e d e c im a l p o in t is p la c e d s o m e w h e r e in th e th re e
s ig n ific a n t d ig its a n d th e s u ita b le u n it is s e le c te d f r o m a m o n g G . M , k ,
m ,
ix,
n a n d p , ( e q u iv a le n t t o th e o r d e r o f 1 0 9 , 1 0 6 , 1 0 3 , 1 0 ‘3 , 1 0 '6 ,
1 0 - 9 , 1 0 '12).
F o r e x a m p le , 1 2 3 4 5 6 .7 8 is d is p la y e d as
i D D U
C ,C
~i O tr
i i—
_ » , » _ «
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i
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( 6 ) F o r th e |S F T
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in v o lv e d f u n c t io n , b e s u re t o p re s s th e [S F T
I
k e y e a c h tim e
n u m e ric a l v a lu e is se t a n d f u n c tio n k e y is p re s s e d sin c e th e s h if t c a p a b ili­
t y is a b o r t e d ( L E D la m p g o e s o f f ) b y p re s s in g a f u n c t io n k e y .
( 7 ) T h e c a lc u la tio n c a p a b ility is in v a lid w h e n th e c o u n t e r is s e t t o C H E C K
( “««! , o r T O T .
( 8 ) W h e n th e O V E R la m p g o e s o n , th e re s u lt is in v a lid . S e t G A T E T IM E /
M U L T IP L IE R so th e O V E R la m p d o e s n o t g o o n .
( 9 ) W h e n th e (x ± L ) re s u lts in 0 in th e ( S C L 1 ( c o m p o u n d c a lc u la tio n )
c a p a b ility , t h e c o u n t e r c o m e s t o a h a l t d is p la y in g E 2 4 . F o r th e c o n ti ­
n u o u s m e a s u r e m e n t o f s u c h f a c to r s as a d e v ia tio n ( in d ic a te d in p p m ) ,
t h e r e f o r e , s e le c t th e v a lu e o f L so t h a t x ± L ^ 0 o r s e t u p th e G A T E
T IM E /M U L T IP L IE R to o b ta in sm a lle r d ig its o f m e a s u r e m e n t d a ta
( x ) th a n th e s e t v a lu e (L ).
7-6