Additional Features; Trigger Functions To Control Recording Start/Stop Operations - GRAPHTEC GL840 Quick Start Up Manual

The GL840 has various functions that enhances and allows data to be collected
and displayed more effectively.
The following three functions describes these details.
17

Additional features

Trigger Functions to Control Recording Start/Stop Operations

1. Starting data capture
Trigger functions control the timing of the start of a recording, and the timing
of the end of a recording.
For example...
The trigger function can perform following operations:
• Start recording when the voltage exceeds 1 V
• Stop recording at 1:00 pm
• Perform control via external input
Here recording starts with the condition set as "Start recording when the
CH1 temperature exceeds 20°C".
(1) Push the [MENU] key and open the "TRIG" menu.
(2) Move the cursor to "Start Source" and select "Level".
(3) Push the [ENTER] key according to the "Level Settings" . The "Trigger
Level Settings" screen is displayed. Move the cursor to the "Mode"
parameter for the CH1, and then select "H".
Key Pointers