Leader Electronics Corp. LDC-824 - Page 4

3
3
PANEL FUNCTIONS
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3-1 shows the front panel of LDC-824(S).
Power switch:
To turn on, depress push-button, to turn off, again depress push button.
GATE TIME; MULTIPLIER SELECTOR:
For frequency measurement, this switch is used to change GATE TIME; when in the
_period-measurement mode, it is used to change the multiplier factors. Each range is as
follows:
GATE TIME: 0.1, 1 and 10 sec.
MULTL: xX 10, X 100 and X 1000
RESET Switch:
By pressing this switch, the counter stops its operation. When released, the display is cleared
to zero. After a delay of approximately 0.1s, if there is an input signal, the counter starts
counting.
|
Function Selector:
A push button switch for changing the measurement mode is used for selecting the
measurement
functions
of
PERIOD
and
FREQ.
|
FREQ. RANGE Selector:
Selector for DIRECT MEASUREMENT (10Hz — 80MHz) and PRE-SCALER (50MHz —
520MHz).