Velleman HPS50 Mode D'emploi page 52

Trigger function
1
52
Fig 42
HPS50 PersonalScope
Note:
Changing the timebase or sensitivity switches
•
the autorange mode immediately off. (Fig 42)
The timebase or sensitivity cannot be changed
•
into hold mode.
Pressing the 't-V/div' key into hold mode
•
toggles the screen between the two stored
waveforms.
At higher timebase (1µs and faster) the scope
•
uses oversampling mode, only repetitive
signals are correctly displayed.
Use the minimum time base (250ns) as a
•
starting point when measuring a signal and
select longer time bases until the signal is
displayed properly. Otherwise the display
may not correctly reflect the signal under
measurement due to aliasing.
THE TRIGGER SETUP
trig
Press the „trigger"-key.
•
Change the triggermode (norm, run, once or
•
roll).
Use the left cursorkey to toggle the trigger slope
•
Use the up/down cursorkeys to shift the vertical
•
trigger position (1).
Use the right arrow key to force a manual trig-
•
gering.
TM