GRAPHTEC GL820 - Page 18

Trace Functions to Adjust the eform
Span, Positiot isplay
These functions enable to make adjustments in order to view individual channels
more easily, and to delete waveforms that is not required to view in display.
ee
ESTA The Span parameter is used to adjust the amplitude of the input waveform,
= This setting is made in the aforementioned Free Running status.
arueove (1) Set the displayed span for CH 1 to 100°C.
\2) Press the SPAN/POSITION/TRACE key to select the SPAN mode.
e ss (3) Use the W and à keys to make CH 1 active (enlarged display).
um
inevew
(4)
Use
the
4
and
J>
keys
to
change
the
Span
value.
Here
the
value
for
span
is
set
to
100°C.
When this setting has been changed, the waveform screen scale will be set to "+100.0 to +0.0".
The Position parameter is used to adjust the position of displayed waveform that is set by
the upper and lower values.
(1) Press the SPAN/POSITION/TRACE key to select the POSITION mode.
(2) Use the Y and A keys to make CH 1 active (enlarged display).
(3) Use the <4 and > keys to set the Position value to "+80°C to -20°C"
When this setting has been changed, the waveform screen scale will be set to "+80°C to -20°C".
“The Trace parameter can be used to specify the selected waveform to be visible or invisible on
the display.
(1) Press the SPAN/POSITION/TRACE key to select the TRACE mode.
(2) Use the Y and A keys to make CH 1 active (enlarged display).
(3) Use the and D> keys to select Off
When this setting has been changed, the CH 1 waveform is not displayed.
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