ication,
)f
trans-
3.
PANEL FUNCTIONS
.3.1
Front
Panel
Fig.
3-1
Fig. 3-1 shows the front panel of LDC-823A.
CD
Power switch:
To turn on, depress push-button, to turn off, again depress push button.
®
GATE TIME; MULTIPL IER SELECTOR:
For frequency measurement, this switch is used to change GATE T IME; when
II1
the
period-measurement mode, it is used to change the multiplier factors. Each range is as
follows:
GATE TIME:
MULTI.:
®
RESET Switch:
0.1, 1 and 10 sec.
X
10,
X
100 and
X
1000
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 (10Hz
-
250MHz).
...... 3 ......
