GW Instek GOS-652G - Manual (Page 17)

⎯ 12 ⎯
GND : Vertical amplifier input is grounded and input terminals are disconnected.
VOLTS/DIV...............(10)(14)
Select the vertical axis sensitivity, from 1mV/DIV to 5V/DIV in 12 ranges.
VARIABLE................(13)(17)
Fine adjustment of sensitivity, with a factor of
≥1/2.5 of the indicated value. When in the CAL position, sensitivity is
calibrated to indicated value.
POSITION..................(40)(37)
Vertical positioning control of trace or spot.
VERT MODE.............(39)
Select operation modes of CH 1 and CH 2 amplifiers.
CH 1 : The oscilloscope operates as a single-channel instrument with CH 1 alone.
CH 2 : The oscilloscope operates as a single-channel instruments with CH 2 alone.
DUAL : The oscilloscope operates as a dual-channel instrument both CH 1 and CH 2. CHOP/ALT are automatic
changed by TIME/DIV switch (18). When CHOP (41) button is pushed in, the two traces are displayed in
the CHOP mode at all ranges.
ADD : The oscilloscope displays the algebraic sum (CH 1 + CH 2) or difference (CH 1 - CH 2) of the two signals.
The pushed in state of CH 2 INV(36) button is for the difference (CH 1 - CH 2).
Triggering:
EXT TRIG(EXT HOR) input terminal........(23)
Input terminal is used in common for external triggering signal and external horizontal signal. To use this terminal, set
SOURCE switch (26) to the EXT position.
SOURCE....................................................(26)
Select the internal triggering source signal, and the EXT HOR input signal.
CH 1 (X-Y) : When the VERT MODE switch(39) is set in the DUAL or ADD state, select CH 1 for the internal
triggering source signal. When in the X-Y mode, select CH 1 for the X-axis signal.
CH 2 : When the VERT MODE switch(39) is set in the DUAL or ADD state, select CH 2 for the internal
triggering source signal.
TRIG.ALT(24) :When the VERT MODE switch(39) is set in the DUAL or ADD state, and the SOURCE
switch(26) is selected at CH 1 or CH 2, with the engagement of the TRIG.ALT switch(24), it will
alternately select CH 1 & CH 2 for the internal triggering source signal.