GW Instek GOS-6200 - Manual (Page 16)

GOS-6200 OSCILLOSCOPE
USER MANUAL
⎯ 26 ⎯
(29)SOURCE—Pushbutton and associated LEDs.
Pressing the pushbutton to select the trigger signal source or the X
signal for an X-Y operation. The actual setting is indicated in a LED
and by the readout (“SOURCE”, slope, coupling).
CH1
The signal applied to the channel 1 input connector is the source of
the trigger signal.
CH2
The signal applied to the channel 2 input connector is the source of
the trigger signal.
(Line)
The triggering signal is obtained from a sample of the AC power
source waveform. The trigger source is useful when the displayed
waveform frequency is time related to the AC power source
frequency.
EXT
The external signal applied through the EXT input connector is used
for the external triggering source signal. When in the dual X-Y
operation, the X-axis operates with the external signal.
E/10(EXT/10)
The external signal applied through the EXT input is attenuated to
10:1 and connector is used for the external triggering source signal.
When in the dual X-Y operation, the X-axis operates with the external
signal.
GOS-6200 OSCILLOSCOPE
USER MANUAL
⎯ 27 ⎯
(30)HO-DELAY—Control knob with a double function and associated
LED.
The control knob has two different functions depending on the time
base mode.
HO (Hold-off time)
In MAIN time base mode, the control knob applies to the hold off
time setting, the HO-LED associated with the knob is dark, the hold
off time is set to minimum.
Switch on the LED by turning the control knob clockwise and extend
the hold off time until the maximum is reached. An approximate hold
off time value will be displayed in the readout (i.e.“HO= 25 %”).
The hold off time is automatically set to minimum (LED is dark), if
the MAIN time base setting is changed. The hold off time setting is
stored and deactivated if ALT (MAIN and DELAY) or DELAY time
base mode is selected.
DELAY TIME
In ALT (MAIN and DELAY) and DELAY time mode, the knob
controls the delay time setting.
Under the ALT time base mode, the delay time is visible on the main
trace, beginning at the trace start and ending at the start of the
window sector. An approximate delay time value will be displayed in
the readout (“DLY=0.125ms”).
If only select DELAY time base, the delay time can also be varied,
but there would be no window sector as the main trace is not visible.