Gw Instek GDS-2074A 4-channel oscilloscope, Digital Storage oscilloscope, GDS-2074A Data Sheet
Product codes
GDS-2074A
CONFIGURATION
141
Expand by Ground/Center
Background
When the voltage scale is changed, the Expand
function designates whether the signal expands
from the center of the signal or from the signal
ground level. Expand by center can be used to
easily see if a signal has a voltage bias. Expand by
ground is the default setting.
function designates whether the signal expands
from the center of the signal or from the signal
ground level. Expand by center can be used to
easily see if a signal has a voltage bias. Expand by
ground is the default setting.
Panel Operation
1. Press a channel key.
CH1
2. Press Expand repeatedly to toggle
between expand By Ground and
Center.
Center.
Range
By Ground, By Center
Example
If the vertical scale is changed when the Expand
function is set to ground, the signal will expand
from the ground level*. The ground level does not
change when the vertical scale is changed.
function is set to ground, the signal will expand
from the ground level*. The ground level does not
change when the vertical scale is changed.
If the vertical scale is changed when the Expand
function is set to center, the signal will expand
from the center of the signal. The ground level will
suit to match the signal position.
function is set to center, the signal will expand
from the center of the signal. The ground level will
suit to match the signal position.
*Or from the upper or lower edge of the screen if
the ground level is off screen.
the ground level is off screen.