GW Instek GDS-122 User Manual User Manual

Page 9

Using

the

Oscilloscope

power cord if the level is < 25%.

75%

50%

25%

< 25%

Switching the

operation mode

If the multimeter screen appears,
press the DMM/OSC key and change
the mode to oscilloscope.

DMM/OSC

Tilt standing the

GDS-122

Use the bar at the back to
tilt stand the GDS‐122 on a
horizontal plane.

Note

If pressing the power switch does not turn on the
GDS‐122, the battery may need recharging.
Connect the GDS‐122 to the AC adaptor and
recharge it for at least 15 minutes.

20B

2. Connecting an input signal

1. Connecting

the probe

Connect the probe(s) between the DUT (Device
Under Test) and the CH1/2 inputs on the GDS‐122.

Alternately, you may use the
GDS‐122’s own 1kHz square
wave output signal. Insert the
signal cable (included in the
package) to the output terminal.

2. Setting the

probe

attenuation

To prevent excessive input voltage, we
recommend you to set the probe attenuation level
to the X 10 position to prevent excessive voltage.

GDS-122 User Manual

DUT or

1kHz square

wave

T I

400

CH2

CH1

X10

3. Setting the

display

magnification

1. After attenuating the probe level by x10, you

also need to magnify the display level by x10
to match the displayed amplitude with the real
amplitude. Open the CH1 or CH2 SETUP
menu by pressing the MENU key and using
the Up/Down keys.

2. Select the probe attenuation level (10X) by

pressing F3 (Probe) repeatedly. The CH1/CH2
vertical scale indicator at the bottom left corner
of the display changes accordingly.

10 X

Probe

CH2 SETUP

CH1 SETUP

21B

3. Using the Autoset function

Overview

The Autoset function automatically configures the
following parameters according to the input
signal.

•

CH1/CH2 on/off

•

Vertical scale/level

•

Horizontal scale/level

•

Trigger level

Using the

Autoset function

Press the AUTOSET key. The input
signal appears in the best display
condition.

AUTOSET

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