Fluke 124 FE 123 & 124 Users Manual - Page 37

Isolated Triggering, Triggering on Video Signals, Isolated Triggering

Get Fluke 124 PDF manuals and user guides View all Fluke 124 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 37 highlights

Isolated Triggering Use the optically isolated trigger probe (ITP120, optional) to trigger on an external source, and to isolate the test tool from a trigger waveform. See Figure 1-17. To choose the isolated trigger probe, select 'EXT' in point of the previous example. Trigger level is fixed and is TTL compatible. 1 Using The Test Tool Triggering on a Waveform Triggering on Video Signals • Apply an interlaced video signal to the red input A. To trigger on a random video line, continue from point of the previous example as follows: Highlight VIDEO on A. Open the VIDEO TRIGGER submenu. Figure 1-17. Isolated Triggering Highlight PAL. Select PAL. Highlight RANDOM. Select RANDOM. 29

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
Using The Test Tool
Triggering on a Waveform
1
29
Isolated Triggering
Use the optically isolated trigger probe (ITP120, optional)
to trigger on an external source, and to isolate the test tool
from a trigger waveform. See Figure 1-17.
To choose the isolated trigger probe, select ‘EXT’ in point
²
of the previous example. Trigger level is fixed and is
TTL compatible.
Figure 1-17. Isolated Triggering
Triggering on Video Signals
•
Apply an interlaced video signal to the red input A.
To trigger on a random video line, continue from point
³
of the previous example as follows:
³
Highlight VIDEO on A.
´
Open the VIDEO TRIGGER
submenu.
µ
Highlight PAL.
Select PAL.
·
Highlight RANDOM.
¸
Select RANDOM.