UNI-T UTD4000 Series - Page 119

110
UTD4000 Four-channel
User Manual
T igger
r
Trigger sensitivity
Internal trigger : div external trigger mV
;
1 : 100
Trigger level range
Internal
EXT
EXT/5
Trigger level accuracy (Typical) applied
on signals of 20ns rise or fall time
≥
Internal
Pretrigger capability
Normal mode/scanning mode, pretrigger/delayed trigger. Pretrigger
depth is adjustable
±
div from the centre of the screen
8
±
800mV
±
4.0V
± . / ±
(0 3div x V div) (within 4div from the center
of the screen)
EXT
EXT/5
± +
default value mV
(6% 40 )
± +
default value mV
(6% 200 )
Holdoff range
96.0000ns~1.5s
Set level to 50% (Typical)
Input signal frequency 50Hz
≥
Edge Trigger
Pulse Trigger
Edge type
Rise, Fall
Trigger mode
(
(
Smaller than, greater than, or equalling to) positive pulse
Smaller than, greater than, or equal to) negative pulse
Pulse width
20ns 10s
~