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47
8 =
S P E C I A L T R I G G E R M O D E W I T H D A T A H O L D P R O B E P M 9 2 6 3
( R E f C T t O F i g . 2 7 , P A g C 1 5 0 ) .
-
C o n n e c t t h e p M 9 2 6 3 w i t h t h e D I N p l u g a n d t h e b a n a n a - p l u g c o n n e c t o r
( V S t - 0 ) t o t h e c o r r e s p o n d i n g
t e r m i n a l s o f t h e P M 2 5 2 1 .
-
C o n n e c t a z e r o l e a d t o t h e p r o b e . T h i s c a n b e d o n e :
1 , W i t h s e p a r a t e b a n a n a l e a d c o n n e c t e d t o t h e 0 s o c k e t o f t h e p r o b e '
2 . W i t h t h e z e r o c a b l e w h i c h i s s u p p l i e d w i t h t h e P M 9 2 6 3 '
-
S e l e c t t h e m o s t s u i t a b l e t e s t p i n Í o r t h e p r o b e .
-
P u s h t h e s l i d e s w i t c h ( w h i t e r i n g ) i n p o s i t i o n R U N N I N G , a w a y f r o m t h e p r o b e t i p .
-
M e a s u r e t h e i n p u t s i g n a l a s d e s c r i b e d u n d e r h e a d i n g
" s e l e c t i o n o f t h e s e n s i t i v i t y r a n g e s " '
-
S e l e c t t h e c o r r e c t t r i g g e r l e v e l a s d e s c r i b e d u n d e r h e a d i n g
" s e l e c t i o n o f t h e t r i g g e r l e v e l " i n " N O R M A L
T R I G G E R M O D E " .
-
S e l e c t f u n c t i o n s w i t h t h e f u n c t i o n s e l e c t o r f i r s t .
-
p u s h t h e s l i d e s w i t c h o n t h e p r o b e t o p o s i t i o n H O L D , t o w a r d s t h e p r o b e t i p ( R e f e r t o F i g . 1 9 ) '
R e m a r k :
The pM 2521 triggers in + trigger level mode at a positive (start) and negative
(stop) crossing of the trigger
level. In - triggeÍ level mode the PM 2521 triggers at a negative (start) and a positive
(stop) crossing of the
trigger level.
P R O B E ( F R O N I V I E W )
D A T A H O L D
z E R o +
. 1
R U N N I N G
D A T A H O L D
s T 3 1 6 5
82Ct2 ? 1
Fig. 19. Data Hold connection
Time measurements
- S e l e c t f u n c t i o n s w i t h t h e f u n c t i o n s e l e c t o r .
R e m a r k :
The pM ZS21 willdisplay the time between two crossings of the trigger level,
(++) or (- -). In special trigger
mode the trigger points are (+ -) or (- +). The time measuÍement is started at the first crossing
and stopped
after the second crossing. When the measuring of the time is stopped the measured value will be
displayed'
T h e a v a i l a b l e r a n g e s i n t h e t i m e f u n c t i o n s a r e : 1 0 1 s , 1 0 2 s , 1 0 3 s , 1 0 4 s , 1 0 5 s '
The ranges are selected automatically.
When a time measurement is started the PM 2521 automatically selects the 101 s range.
- T o s t a r t a n e w m e a s u r e m e n t p r o c e e d a s f o l l o w s '
R e s e t t h e P M 2 5 2 1 b y d e p r e s s i n g p u s h b u t t o n S T O P / R E S E T '
R e m a r k :
The display will jump to zero and the PM 2521
will start a new measurement after a crossing of the trigger level'
- T o s t o p a m e a s u r e m e n t p r o c e e d a s f o l l o w s '
D e p r e s s p u s h b u t t o n S T O P / R E S E T w h i l e t h e P M 2 5 2 1 i s m e a s u r i n g '
R e m a r k :
T h e t i m e m e a s u r e d w i l l b e d i s p l a y e d '
To start a measurement. depress pushbutton STOP/RESET again'
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