GOS-6112 OSCILLOSCOPE
USER MANUAL
15
(13)
CH1 VOLTS/DIV
.
(14)
CH2 VOLTS/DIV
– Control knob for channel 1/channel 2 has double
function.
Turning the knob clockwise to increase the sensitivity in 1-2-5 sequence
and turning it in the opposite direction (CCW) to decrease. The
available range is from 2mV/div up to 5V/div. The knob is
automatically switched inactive if the related channel is switched off.
The deflection coefficients and additional information regarding the
active channels are displayed in the readout.
ie. “CH1=deflection coefficient, input coupling”. The “=” symbolizes
calibrated measuring conditions and is replaced by the “>” symbol in
uncalibrated conditions.
(15)
CH1-VAR
.
(16)
CH2-VAR
— Pushbutton with double function.
CH1/CH2
Pressing briefly the CH1(CH2) button to set the cannel 1 (channel 2) of
the instrument on, the deflection coefficient will be displayed in the
readout indicating the current conditions (“CH1…”/ “CH2…”).
VAR
Pressing and holding the pushbutton to select the VOLTS/DIV function
between attenuator and vernier (variable). The current setting is
displayed by the “>” symbol in the readout.
After switching on the VAR, turn the VOLTS/DIV control knob
counterclockwise to reduce the signal height, and the deflection
coefficient becomes uncalibrated.
GOS-6112 OSCILLOSCOPE
USER MANUAL
16
(17)
CH1 AC/DC.
(18)
CH2 AC/DC
Pressing the pushbutton briefly to switch over from AC (~ symbol) to
DC (= symbol) input coupling. The setting is displayed in the readout
with the deflection coefficient.
(19)
CH1 GND– P
×
10
(20)
CH2 GND – P
×
10
–Pushbutton has two functions.
GND
Each time when the pushbutton is pressed briefly, the input of the
vertical amplifier is grounded. It is displayed in the readout as an earth
(ground) symbol “ ”.
P
×
10
Pressing and holding the pushbutton to select the indicated deflection
coefficient of the channel displayed in the readout between 1:1 and 10:1.
The probe factor of 10:1 is displayed in the readout with the probe
symbol in front of channel indication (e.g. “P10”, CH1) When proceed
cursor voltage measurement, the probe factor will be automatically
included. The symbol must not be activated unless a 10:1 attenuator
probes are used.
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