FeelTech
26
FY2300H Series User’s Manual
Frequency Meter/Counter
FY2300H provides a counter which can measure various parameters of
external input signal such as frequency, period, duty cycle, positive pulse width
and negative pulse width. Dual channels output can work together with counter.
Enable the Counter
Press
MEAS
button of the front panel to enable the counter and
measurement Manu. External signal for measurement can be inputted by EXT.IN
connector and the result will be displayed on the screen in real time. The lowest
frequency workable is 0.01 Hz.
（
GATE TIME:100S
）。
Press
COUN
button to enter external pulse counter function. At this time
COUN
button is turned into
FREQ
button. Repeat pressing this button to switch
between
FREQ
and
COUN
.
Frequency Meter/Counter Interface
When the Frequency Meter/Counter is turned on, press
STOP
button to pause
and press
ZERO
button to reset.
Key Point
：
Amplitude of signal inputted should be bigger than 1.5V. Maximum safe
voltage inputted from EXT.IN is 20V. Maximum safe voltage inputted from
TTL_IO is DC5V. The Uplink function need to be turned off when using
Counter/Meter.
