Fluke 2620A Manuel D’Utilisation
Additional Considerations
Advanced Trigger Mechanisms
5
5-5
LOW
HIGH
7.0V
2.0V
0.8V
–0.6V
0
VALID EXTERNAL
TRIGGERS
SCAN
TIME
SCAN
HIGH
≥
100 mS
FALLING
EDGE
HELD 5
EDGE
HELD 5
µ
S
IGNORED
(SCAN IN
PROGRESS)
(SCAN IN
PROGRESS)
+
–
0
1 2 3 TR
0 1
2
3 4
5 6
7
Σ
9-16 V
DC PWR
!
+30V
ALARM OUTPUTS
DIGITAL I/O
+ –
0
1 2 3 TR
oo15f.eps
Figure 5-1. External Trigger Timing