VOLTCRAFT 632 FG, Manual

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5. OPERATION METHOD
5-1 Basic Operation---Single-channel Operation
Before connecting the power cord to an AC line outlet, make sure that the AC line voltage input switch on the rear
panel of the instrument is correctly set for the AC line voltage. After ensuring the voltage setting, set the switches
and controls of the instrument as shown below:
Item No Setting Item No Setting
POWER (6) Disengage position(OFF) SLOPE (26) +
INTEN (2) Mid-position TRIG. ALT (27) Released
FOCUS (3) Mid-position TRIGGER MODE (25) AUTO
VERT MODE (14) CH1 TIME/DIV (29) 0.5mSec/DIV
ALT/CHOP (12) Released(ALT) SWP.VER (30) CAL position
CH 2 INV (16) Released
34
POSITION
(32) Mid-position
56
POSITION (11)(19) Mid-position
x10 MAG (31) Released
VOLTS/DIV (7)(22) 0.5V/DIV
VARIABLE (9)(21) CAL(clockwise position)
AC-GND-DC (10)(18) GND
SOURCE (23) CH1
After setting the switches and control knobs as mentioned, connect the power cord to the AC line outlet, then
follow the procedure describes as follows:
1)
Press the POWER switch and make sure that the power LED is turned on. In about 20 seconds, a trace will appear
on the CRT screen. If no trace appears in about 60 seconds, counter check the switch and control setting.
2) Adjust the trace to an appropriate brightness and image with INTEN and FOCUS control knob respectively.
3) Align the trace with the horizontal central line of the graticule by adjusting the CH1 POSITION control knob and
TRACE ROTATION control knob(adjusted with screwdriver).
4) Connect the probe to the CH1 INPUT terminal and apply 2Vp-p CALIBRATOR signal to the probe tip.
5)
6)
7)
8)
Set the AC-GND-DC switch to AC, a waveform will be displayed on the
CRT screen as shown in the figure 5-1.
Adjust the FOCUS control knob to trace image sharply.
Display the signal waveform clearly by adjusting the VOLTS/DIV switch
and TIME/DIV switch to appropriate position.
Adjust the
56
POSITION and
34
POSITION control knobs to
appropriate position to align the waveform with the graticule, so that
voltage (Vp-p) and period (T) can be read conveniently.
FIG. 5-1
The descriptions above are the basic operating procedures for CH1 single-channel operation of oscilloscope. So is CH2
single-channel operation. For further operation methods will be explained in the subsequent paragraph.