
c. R A T I O A / B (frequency r a t i o ) mode
The R A T I O A / B mode is an operational mode
in which t h i s product measures both s i g n a l s
* on channels A and B , and then compares the
C H A N N E L B s i g n a l s w i t h those on C H A N N E L
A ( A / B ) f o r r a t i o c a l c u l a t i o n .
The d i s p l a y resolution can be selected w i t h
G A T E s w i t c h © . *
d. T l / A - * B ( t i m e i n t e r v a l ) mode
The T l / A -> B mode is an operational mode
in w h i c h t h i s counter product measures the
t i m e interval between a selected edge of the
C H A N N E L A signal and a selected edge of
the C H A N N E L B s i g n a l .
The edge can be selected f r o m positive-going
and negative-going edges of each signal w i t h
- S L O P E switches © and @ . The measurement
d a t a is displayed in ^ s or ms selected by
display unit select s w i t c h © . T h a t display
unit is indicated by either measurement unit
display L E D © or ® . The display resolution
can be selected w i t h G A T E s w i t c h ® .
e. ' T O T A L / A (event input t o t a l count) mode
The T O T A L / A mode is an operational mode
in which t h i s product measures the number of
channel A input cycles and then outputs each
count value to the display continuously.
T h i s cycle count and display operations can
be e x t e r n a l l y controlled w i t h the gate signal
input to the T O T A L I Z E S T A R T / S T O P input
juck on the rear panel or H O L D s w i t c h © on
the f r o n t panel.
f. C H E C K / 1 0 M H z mode
The C H E C K / 1 0 M H z mode is an operational
mode in which t h i s universal counter checks
internal functions. If t h i s self-check mode is
selected, the frequency of the internal t i m e
base timer ( 1 0 M H z ) w i l l be displayed by the
8-digit 7-segment L E D s .
© G A T E S w i t c h / G A T E L E D
The G A T E s w i t c h is provided to select a
desired display resolution value f o r the meas-
urement modes s t a r t e d by F U N C s w i t c h © •
T h i s does not apply to the event t o t a l count
14
Содержание FC-757
Страница 9: ...Figure 1 Front panel 9 ...
Страница 17: ...Figure 2 Rear panel 17 ...
Страница 40: ...A p r o d u c t o f KENWOOD CORPORATION 1 7 5 2 chome Shibuya Shibuya ku Tokyo 150 Japan ...