ESI VideoBridge 2150, Руководство по обслуживанию

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2 . 1 . 2
CRT D i splay
The 5 - i n c h ( d i a g on a l ) ca t ho d e - ray tube ( CRT ) pre sen t s a s i m u l t a n eous
d i s p l a y of t h os e te s t pa rame t e r s a n d mea s u reme n t r e s u l t s t ha t a re mo s t
i mp o r t a n t t o t h e o p e r a t o r . M o d e l s 2 1 5 0 / 2 1 6 0 f e a t u r e t w o d i s p l a y
f orma t s- - norma l ( d i r e c t ) a n d b i n n i n g ( s ta t u s ) .
STATUS
H IGH LIMIT '
NORMAL
U N ITS
LOW
PARTS COUNT
BIN N U M BE R
0 1
..
� O � ' . O �
PER BIN
8 2 -1 o o � + 1 . ? o o r
0
FREQUENCY DISPLAY MODE
PROGRAM M E D
VOLTAGE
NUMBER OF
H
O
H
=
M EASUREMENTS
SETTLING
1 0 0 0 H ' S I H G L E
"'3
- 2 . 0 � + Z . O O r.
0 0 0 0
0 .. -:5.
0 0 % + � . 0 0 % O D D
O
D
O � - 1 0 . 0 0 i: + 1 0 , 0 0 % 0 0 0 0 0
O £J
- 20 . D O r.
+ 2 0 . 0 0 % 0 0 0 0 0
0 7 . 0 0 % . 0 0 %
O O D O D
0 8
. D o X
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O O � 0 0 0 0 0
09
. 0 0 % . O O X 0 0 0 0 0
1 0 . 0 0
x
. 0 0
x
0 0 0 0 0
TIME
I N T 6 R = 0 5 0 " ' A
'
E
=O
B I A S
BIAS
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TIME
MINOR 11
.
O O
X
. 0 0 % 0 0 0 0 0
REJECT
0 0 H A I H R E J E C T
8 1 H
0 0 0 0 5
AUTO
INTEGRATION
CALIBRATION
DISPLAY
FIXTURE
NOH- O .
F A R A D S
MINOR
. 0 0 0 0 0 0
R/X
0 ) S T A T U S FUNCTION
N O M I N A L
'
)
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ALPHA
FUNCTION
DISPLAY
MAJOR
DATA ENTRY
FU NCTION
Figure
2-3 .
FUNCTION
DATA ENTRY ERROR M ESSAGE
CRT D i splay Forma t s
N o rma l d i sp l ay fo rma t can be broken- d own i n t o t h r e e ma j o r a re a s :
1 .
Pa rame t e r f i e l d ( t op po r t i on o f CRT s c r e e n ) .
Te s t f requ e n cy i n h e r t z ( H z )
Nom i n a l va l u e ( w h e n prog r a mmed )
I t c on t a i n s :
U n i t s o f t he t op mea s u r e me n t d i sp l ay f u n c t i o n
Te s t s i g na l l e ve l i n m i l l i vo l t s ( mV ) o r m i l l i a mpe re s ( rnA )
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M e a s u reme n t mode -- c o n t i n u ou s ( CONT ) o r s i n g l e ( S I NGL E )
D i s p l a y mode
Ra n g i ng mode D i r e c t , A u t o LRC , D e v i a t i o n , GO/NO-GO , or S o r t
A u t o o r Ho l d
Ca l i b ra t i on ( CA L I B ) i n d i c a t or for t e s t- l e a d o r t e s t f i x t u r e ze ro
Number of mea s u r e me n t s a v e ra g e d f o r ea c h d i s p l a y
. S e t tl i ng t i me a nd i n t e g ra t i o n t i me i n m i l l i s e c o n d s ( ms )
B I AS ON/OF F , A L P H A ke y boa r d o v e r l a y a c t i ve , a n d key boa r d L OCK
e l s l i
2 - 2 3
2 1 5 0 /2 1 6 0 5 /8 5