GW Instek GOS-6103C - Manual (Page 12)

GOS-6103C OSCILLOSCOPE
USER MANUAL

19

coefficient (uncalibrated i.e. “DLY>0.125ms”). The width of the
window segment decreases when the DELAY time coefficient is set to
a lower value (higher time deflection speed).
For better reading, the vertical position of the DELAY time base trace
position can be shifted (please note TRACE SEP (11)).
DELAY
In the DELAY time base mode, the display of the MAIN traces, the
window sector and the MAIN time coefficient will disappear from the
readout. As the trace separation is no longer required under the
circumstances, the function would be switched off too. Consequently,
only the DELAY time coefficient is displayed by the readout.
X-Y
Switch on or off the X-Y mode by pressing and holding the button. In
the X-Y mode, the deflection coefficient is displayed in the readout.
The Y axis input is selected by setting the vertical mode pushbutton to
the CH1, CH2 and both modes, and the X axis input is selected by
setting the TRIGGER SOURCE pushbutton to the CH1, CH2 and EXT.
(23)H POSITION
The control knob enables a horizontal position shift of the signals. In
combination with ×10 MAG the function makes it possible to shift any
part of the signal on the screen.
(24)×10 MAG—SETUPS LOCK— Pushbutton has double function and
associated MAG LED.
Each time when this pushbutton is pressed, the MAG LED located
above will be switch on or off. If the MAG LED is lighted, the signal
display in all time base modes will be expanded 10 folds and
consequently only a tenth part of the signal curve is visible. The
interesting part of the signal can be made visible with the aid of the H.
POSITION control.
GOS-6103C OSCILLOSCOPE
USER MANUAL

20

SETUPS LOCK
Pressing and holding the pushbutton, then switch the panel setups lock
function on or off. To avoid unintentional touch of the setting, the
feature is extremely useful for long term and repetitive measurements
that need to be performed under the same test condition of the
oscilloscope setting.
(25)AUTO RANGE-VAR – Pushbutton with double function.
AUTO RANGE
Each time when the pushbutton is pressed briefly the incoming signal
is selected, then the time range would change automatically and approx.
1.6 to 4 waveforms are displayed on the screen. If in the ×10 MAG
mode, the ten times of waveform of 1.6 to 4 cycles can be displayed.
For signal of 100Hz or in the absence of a trigger, the time range is set
to 5ms/div, and for the signals of approx. 8MHz or more, it is set to
50ns/div. The time range change automatically following the different
incoming signal.
The AUTO RANGE does not function when the trigger is not obtained.
The AUTO RANGE functions with the trigger signal selected by the
TRIGGER SOURCE, COUPLING and LEVEL control. The time base
mode should be set to MAIN.
In case of measuring a complex waveform such as a TV signal, it may
take several seconds to perform the AUTO RANGE function.
VAR
Pressing and holding the pushbutton to select the TIME/DIV (21)
control knob function between time base switch and vernier (variable).
The variable function is activated in the MAIN time base only.
After switching on the VAR, the time deflection coefficient is still
calibrated until further adjustments are made. Turn the TIME/DIV (21)
control knob counter clockwise to increase the time deflection