Span, Trace And Position Functions To Adjust The Waveform Display - GRAPHTEC GL840 Quick Start Manual

1.800.561.8187

Span, Trace and Position Functions to Adjust the Waveform Display

1. Starting data capture
Trigger functions can be used to control the timing of the start of recording,
and the timing of the end of recording.
The span, trace and position operations can be performed while the GL840 is in
the Free Running mode, while it is recording data, and while it is replaying data.
The changes are applied to the displayed data only, and this change dose not
affect the recorded data.
1. How to change the Span setting
The Span parameter is used to adjust the amplitude of the input waveform.
This setting is made in the Free Running status.
(1) Set the displayed span for CH 1 to 110°C.
(2) Push the [SPAN/TRACE/POSITION] key to select the SPAN mode.
(3) Use the
selected channel).
(4) Use the
span is set to 110°C.
When this setting is changed, the waveform screen scale will be set to
"+100.0°C to -10.0°C".
2. How to change the Trace setting.
The Trace parameter can be used to specify the selected waveform to be
visible or invisible on the display.
(1) Push the [SPAN/TRACE/POSITION] key to select the TRACE mode.
(2) Use the
(3) Use the
When this setting is changed to OFF, the CH 1 waveform will not be
displayed.
3. How to change the Position setting
The Position parameter is used to adjust the position of displayed waveform
that is set by the upper and lower values.
(1) Push the [SPAN/TRACE/POSITION] key to select the POSITION mode.
(2) Use the
(3) Use the
When this setting has been changed, the waveform screen scale will be
set to "+90°C to -20°C".
19
www.
Key Pointers
Key Pointers
The currently selected mode (SPAN, TRACE or
POSITION) can be checked by looking at the
"Waveform Operation Display Area".
and keys to make CH 1 active (display enlarges on the
and keys to change the Span value. Here the value for
and keys to make CH 1 active (enlarged display).
and keys to select Off.
and keys to make CH 1 active (enlarged display).
and keys to set the Position value to "+90°C to -20°C".
.com
information@itm.com