ESI VideoBridge 2150, Service Manual

Page: 131 / 332

FAST/ M E D / S L OW se l e c t i on s e t s i n i t i a l i n t e g r a t i o n t i m e , se t t l i n g t i me ,
and n u m b e r o f a v e ra g e s . T he se may be u s e d a s i s , or t h e y may be re s e t
to a n y d e s i re d l e ve l ( s e e S e c t i on 2 . 8 . 1 ) .
Ta b l e 2-9 . P reset Mea sureme n t Speeds
D I RECT
FAS T
- 4
measu remen ts/second
M E D I UM
- 2 measuremen ts/second
S LOW
-5 secon ds/measurement
* S i n g l e mode
on
I y , 8 CODE enabled
* * 2 ms S E T L , 2 ms I . T . , frequency � 500 Hz
S O RT
and
GO!N O-GO
HA N D LE R*
- 1 1
m easurements/second
-6/second
- 9/second **
- 2
m easurements/second
- 2 measu rements/second
- 5 seconds/m easurement -5
seconds/measu rem ent
T h e se mea suremen t speeds a re typ i ca l under the fol l ow i ng condi t i ons :
f r e q u e n cy
=
1 k H z
I . T .
=
de t e rm i n ed by
FAST/MED/SLOW
S E T L
=
d e t e rm i ne d by
FAST/M E D / S L OW
A V G
=
de term i ne d by
FAST/MED/ S L OW
d i s p l a y mode
=
s e e t a b l e
t e s t s i g na l
=
1 0 0 0 mV
va l ue o f compone n t- u n de r- t e s t
=
I nF
ba ud ra t e
=
9 6 0 0
( i f u s i ng RS - 2 3 2C )
FAST/MED/SLOW
=
s e e ta b l e
m e a s ureme n t m o d e
=
c o n t i n u o u s ( u n l e s s
i nd i ca t ed a s s i n g l e )
ra n g i ng s ta t u s
=
H O L D
b i a s
=
O F F
The f o l l ow i n g e xampl e s i l l u s t ra t e how to c a l cu l a te mea su r e m e n t t i me s
unde r d i f f e re n t t e s t c o n d i t i o ns .
2 - 9
3
e l s l i
2 1 5 0 / 2 1 6 0 5 /8 5