Kenwood FC-757, Инструкция по эксплуатации, Страница: 15 / 40

( T O T A L / A ) mode.
The G A T E L E D is also provided to indicate
the selected display resolution value.
Measurement
mode
Resolution
kHz Frequency
mode
0.01s 0.1s
1.0s
10s
M H z Frequency
mode
0.02s
0.2s
2.0s
Period/Frequency
R a t i o / T i m e Interval
measurement mode
x l
x l O X100 X1000
4 - 2 Rear panel
© T O T A L I Z E I N P U T S T A R T / S T O P Input juck
The T O T A L I Z E I N P U T S T A R T / S T O P input juck
is provided to control the event input count
operation mode.
The event input count operation is enabled if
the input signal to t h i s t e r m i n a l becomes a c t i v e
( T T L level : ' H ' ) .
The event input count operation is forced to
terminate if the input signal to t h i s t e r m i n a l
becomes inactive ( T T L level : ' L ' ) . The event
input count operation is also disabled if t h i s
t e r m i n a l is grounded to the chassis ground.
@ E X T . I N . J u c k
If O S C I L L A T O R E X T . / I N T . s w i t c h © is set to
the E X T . (left p o s i t i o n ) , t h i s t e r m i n a l is used a s
an input t e r m i n a l f o r external time base clocks.
© O S C I L L A T O R E X T . / I N T . S w i t c h
The O S C I L L A T O R E X T . / I N T . s w i t c h is provided
to select a function f o r the E X T . IN juck.
In s h o r t , either the internal t i m e base o s c i l l a t o r
or an external t i m e base clock o s c i l l a t o r can be
selected w i t h t h i s s w i t c h .
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