Table of Contents
Advertisement
The user has pressed H O L D switch @ ( - i s * . ) .
2)
In this case, the counting measurement is
terminated and the total count value is held by
Display
@ . If the H O L D switch is pressed ( J U L )
again, the counting measurement will be started
again.
3)
The user has pressed R E S E T switch
In this case, the counter is cleared and the
display value is reset to ' 0 ' . Note that this
product is reset each time when this switch is
pressed.
Press A T T x 10 switch (-em.) according to input
(6)
signal levels. If the internal attenuator circuit is
enabled, input signal to the C H A N N E L A juck is
attenuated into 1/10 before reaching the counter.
This attenuates noise-superimposed input signals,
in addition, the attenuation circuit preprocesses a
signal with rather a high amplitude into a
reasonal level. As a result, accurate counting is
assured.
Press L P F (Sow pass filter) switch © ( - e e l )
(7)
eliminate noise signal components. If the internal
L P F circuit function is enabled, the input signal
to the C H A N N E L A juck is handled first by the
L P F circuit (about 100kHz) and then input to the
counter. Therefore, the counter processes input
signals without high-frequency noises only. As a
result, accurate low-frequency
assured.
5-4
© .
5 - 4 - 1 .
to
Display function
Display Layout
a. Frequency / Period display
b. MHz Frequency
display
c. Prescale Input Frequency
d. Event Input total Count display
Figure 4. Various Display Examples
measurement is
display
Advertisement
Table of Contents
