Philips PM3350A - Trigger Mode

4 - 28
4 APPLICATIONS
4.2.3. TRIGGER MODE
In DIGITAL trigger mode the following extra functions are available:
- SINGLE SHOT
by pressing the TB TRIG MODE key and the RESET key.
In DIGITAL MEMORY mode the display memory oontent is refreshed once after a
suitable trigger is received.
To clear the display memory contents press the RESET key, and the display
memory contents are then set to a value at the vertical mid screen position.
If the RESET key is pressed for longer than 2 seconds the display memory
contents are set to the value 0 and cannot be seen on the screen.
After a RESET operation the time-base is ARMED and waits for a trigger. For a
good trigger, the trigger level must be set to the desired value and the LEVEL
VIEW function as described in Section 4.1 (trigger mode - trigger coupling) can
be of help.
The single-shot mode is very useful to capture a signal that occurs only once.
The signal is then stored in the display memory.
4.2 USE AS A DIGITAL STORAGE OSCILLOSCOPE