VOLTCRAFT 632 FG, Manual

Page: 11 / 19


10

(28)LEVEL
Display a synchronized stationary waveform and set a start point for the waveform.
Toward “+” The trigger level moves upward on the display waveform.
Toward “-” The trigger level moves downward on the display waveform.
(25)TRIGGER MODE
Trigger mode selection.
AUTO
If no trigger signal applied or the trigger signal frequency is less than 25Hz, the sweep will be in the
free run mode.
NORM If no trigger signal applied and sweep is in a stand-by state, there will be no trace appear.
TV-V Used for observing entire vertical picture of television signal.
TV-H Used for observing entire horizontal picture of television signal.
(Both TV-V and TV-H synchronize only when the synchronizing signal is negative.)
Time Base:
(29)TIME/DIV
Provide sweep time ranges from 0.2 uS/div to 0.5 S/div with 20 steps totally.
X-Y
Use the instrument as an X-Y oscilloscope by setting to X-Y position.
(30)SWP.VAR
Vernier control knob of the sweep time used when CAL and the sweep time is calibrated to the value preset in
TIME/DIV. The sweep of TIME/DIV can be varied continuously when shaft is not in CAL position. Rotate the
control knob to CAL position and the sweep time is calibrated to the preset value of the TIME/DIV.
Counterclockwise rotate the control knob to the bottom to delay the sweep by 2.5 times or more.
(32)
34
POSITION
Adjust the trace or spot in horizontal position.
(31)
×
10 MAG
Magnify 10 by pressing this key.
Function Generator:
(39)GENERATOR OUTPUT
The main output terminal with 50
Ω
output impedance.
(40)WAVEFORM SELECTOR
The waveform change following after each button pushing in Sine wave, Triangle wave, and Square wave sequence.
(41)OUTPUT WAVEFORM DISPLAY
Display the current output waveform.
(42)FREQ RANGE Switch:
The frequency range can be changed following each button pushing in sequence of 1M, 100k, 10k, 1k, 100, 10, and 1.
(43)FREQUENCY RANGE DISPLAY
Display the current frequency range.
(44)FREQUENCY Knob
Rotate the knob clockwise to get higher frequency and reverse the rotation of knob to get lower frequency.
(45)AMPLITUDE/DC LEVEL Adjustment Knob
Rotate outside knob clockwise to get higher amplitude and reverse the rotation of knob to get lower amplitude.
The inside knob is for DC Level adjustment, it works only when the knob being pulled up. Pull up the knob and
rotate it clockwise to get positive DC Level, and reverse the rotation of knob to get negative DC Level.
Others:
(1) CAL
This terminal delivers the calibration voltage of 2 Vpp, 1kHz, positive square wave.
(15)GND
Ground terminal of oscilloscope mainframe.