ESI VideoBridge 2150, Service Manual

Page: 47 / 332

Mea s u reme n t
T
i
m
e ( a
=
nume r i c a l a rgume n t pre c e d e s key )
SEn
r::J
I .T .
r::J
AVG
r::J
FAST
MED
SLOW
r::J r::J r::J
(� S e t t l i n g t i m e k e y
e n t e r s a t i m e i n
m i l l i s e c o n d s . A f t e r i n i t i a t i ng a mea-
s u re me n t , t h e
s e l e c ted t i me
i n s t r ume n t
t h e n
wa i t s
s t a r t s
t h e
t h e
me a s u re m e n t . S e t t l i n g t i me s f r om 2 m s t o
1 5 00ms ca n be e n t e r e d i n I m s s t e ps .
� I n tegra t i on t i me key
en t e r s a t i me i n
m i l l i s e c o n d s . T h i s d e te rm i n e s t he nu mbe r
o f t e s t c y c l e s pe r f ormed on t he de v i c e ­
u nde r - te s t . S h o r t i n te g ra t i o n t i me s a r e
l e s s a c c u r a t e t h a n l o nge r t i m e s a n d a l l ow
l e s s mea s u re m e n t r e s o l u t i o n . I n t e g ra t i o n
t i me s r a n g e f rom 2 m s t o
6 0 0 m s ( s e e
Se c t i on 2 . 8 . 2 f o r mo re i n f or ma t i on . )
� Avera g e me a sureme n t s key
e n t e r s t h e
n umbe r o f mea s u re me n t s ( l t o 2 0 ) t o be
a v e raged f o r the r e s u l t d i sp l aye d .
F a st , Me d ium , S l ow k e y s
c h o o s e
s e l e c ted va l u e s o f Se t t l i n g
I n t e g r a t i o n T i m e , a n d n u m b e r o f
u r e m e n t s a ve ra g e d .
SETL I .T .
Fast
5 ms
1 0 ms
1
Medium
50ms
50ms 1
S l ow
50ms 50ms
1 0
p r e­
T i me ,
m e a s -
NOTE :
Ov e ra l l mea s u reme n t speed i s a l s o d e pend e n t upon s u c h
f a c t o r s a s t e s t f r e q u e n c y a n d d i s p l a y m o d e . See Se c t i o n 2 . 8
for a comple te descr i pt i on o f mea surem e n t speed ca l cula t ion .
e l s l i
2 - 8
2 1 5 0 /2 1 6 0 5 / 8 5
•