ESI VideoBridge 2150, Руководство по обслуживанию

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Deviation s and L imi t s Func tions ( cont )
ABS
r::::J
P e r c e nt m o d e k e y
i s u s e d 1 ) to s e l e c t
pe r c e n t DE V i a t i on
d i s p l a y t o s h ow
d e v i a t i ons f rom t he
n om i n a l va l u e , 2 ) t o
c h a n g e STATUS pa g e t o s e t l i m i t s i n
p e r c e n t .
A b s o l u te mode key
i s u s e d 1 ) t o se l e c t
a b s ol u t e DEV i a t i on d i s p l a y to s h ow
d e v i a t i on s f r om t h e n o m i n a l va l ue , 2 ) t o
a l l ow l i m i t s o n STATUS p a g e t o be se t a s
a bs o l u t e va l u e s .
Tes t Frequency and Level ( a
=
numerical argument precedes key )
Hz
r::::J
mV
r::::J
rnA
r::::J
� Frequency k e y
e n te r s a de s i r e d t e s t
f re q u e n c y i n he r t z ( H z
)
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Ava i la b le
f r e q u e n c i e s be l ow 1 0k H z a re f ou n d by F
=
6 0 k H z /N l W he r e : N l i s a n i n t e g e r 1
�
N l
< 3 0 0 0 . F r e q u e n c i e s a b o v e 1 0 k H z a r e
f o u n d by F
=
3 0 0 k H z /N 2
W h e r e : N 2 i s a n
i n t e g e r 2 < N 2
�
3 0 . S e e S e c t i o n 2 . 5 . 1
f o r m o re d e t a i l s c on c e rn i n g te s t
f reque n c i e s .
( a
) Test voltage level key
e n t e r s a t e s t
v o l t a g e f rom 5 mV t o 1 5 0 0 mV i n l mV s t eps .
( a ) Test c u r rent le vel key
e n t e r s a t e s t
c u r r e n t f r o m O . l m A t o 1 0 0 m A i n O . l m A
s t eps .
2
-
7
e / s / i 2 1 5 0 /2 1 6 0 5 /8 5